CN104076303A - Lower limb coil used for magnetic resonance imaging and assembly thereof - Google Patents

Abstract

The invention discloses a lower limb coil used for magnetic resonance imaging, which is assembled on magnetic resonance imaging equipment for carrying out magnetic resonance imaging on the lower limb of a patient. The lower limb coil used for magnetic resonance imaging comprises a shell, a first flexible board and a second flexible board assembled at two opposite sides of the shell and an adjusting component assembled on the shell and capable of moving up and down relatively to the shell in the vertical direction. The invention also provides a lower limb coil assembly used for magnetic resonance imaging, which comprises a sickbed and the above lower limb coil assembled on the sickbed. The height of the lower limb coil shell in the vertical direction relative to the sickbed can be adjusted via the adjusting component. According to the lower limb coil assembly used for magnetic resonance imaging disclosed by the invention, as the height of the shell in the vertical direction relative to the sickbed can be adjusted via the adjusting component assembled on the shell of the lower limb coil, heights of the first flexible board and the second flexible boards in the vertical direction relative to the sickbed are thus adjusted, different patients with lower limbs of different sizes can obtain well-qualified patient lower limb magnetic resonance images in the case of magnetic resonance imaging, and correct diagnosis by a doctor is facilitated.

Description

For lower main pole winding and the assembly thereof of magnetic resonance imaging

[technical field]

The present invention relates to medical imaging technology field, relate in particular to a kind of lower main pole winding and assembly thereof for magnetic resonance imaging.

[technical background]

Lower limb coil block for magnetic resonance imaging related to the present invention, comprises sick bed and is mounted on the lower main pole winding on sick bed.Described lower main pole winding is for carrying out magnetic resonance imaging to patient's lower limb, it comprise lid on body of the body, snap close with a host cavity and be located in body and lid between the first flexible board and the second flexible board.The first flexible board is symmetrically set in the relative both sides of body with the second flexible board, and can in the time that patient's lower limb are positioned at body both sides, bend the lower limb to be coated patient downwards.The first flexible board, the second flexible board enclose and form the receiving space of accommodating patient's lower limb with body respectively.The 3rd row's antenna that lower main pole winding also comprises the first row antenna be located in the first flexible board, be located at second row antenna in the second flexible board, be located in the host cavity of body is arranged antenna with the 4th.First row antenna can and be located at intrinsic the 3rd row's antenna in the time of the first coated patient's of flexible board bending lower limb and be located in around these lower limb of patient.Second row antenna can and be located at intrinsic the 4th row's antenna in the time of another lower limb of the second coated patient of flexible board bending and be located in around these another lower limb of patient.

Although the above-mentioned lower limb coil block for magnetic resonance imaging can obtain by the first row antenna of lower main pole winding and the 3rd row's antenna another lower limb that coated patient's lower limb, second row antenna and the 4th row's antenna are coated patient jointly jointly the magnetic resonance image (MRI) of patient's lower limb.But because the thickness of each patient's lower limb is different, and lower main pole winding be fixedly mounted on sick bed and its in the vertical direction can not move relative to sick bed, also descend the height of the relative sick bed of main pole winding in the vertical direction not regulate, in the time utilizing this lower main pole winding to carry out magnetic resonance imaging to the thinner patient of lower limb, there will be because second row antenna, the 3rd row's antenna are lower from the distant image resolution ratio signal to noise ratio (S/N ratio) lower, image of magnetic resonance image (MRI) that obtains of causing of patient's lower limb, and then the phenomenon that doctor cannot correctly be diagnosed according to image; In the time utilizing this lower main pole winding to carry out magnetic resonance imaging to the thicker patient of lower limb, can exist first row antenna distant and make the problem that image resolution ratio is low, the low doctor of causing of signal to noise ratio (S/N ratio) cannot correctly diagnose of the magnetic resonance image (MRI) obtaining from patient's lower limb.

Therefore, necessary a kind of lower main pole winding and assembly thereof for magnetic resonance imaging, the defect existing for overcoming prior art of providing.

[summary of the invention]

The object of this invention is to provide a kind of lower main pole winding for magnetic resonance imaging, can in the time that patient's lower limb are carried out to magnetic resonance imaging, obtain the image of the good patient's lower limb of quality magnetic resonance imaging, thereby guarantee that doctor correctly diagnoses.

The object of the invention is also to provide a kind of lower limb coil block for magnetic resonance imaging, can in the time carrying out magnetic resonance imaging, obtain the image of the good patient's lower limb of quality magnetic resonance imaging, thereby guarantee that doctor correctly diagnoses.

Lower main pole winding of the present invention is realized in the following way: a kind of lower main pole winding for magnetic resonance imaging, the first flexible board and the second flexible board that it comprises housing and is mounted on the relative both sides of housing, described lower main pole winding also comprises the adjustment member that is mounted on housing and can moves up and down at the relative housing of vertical direction.

The present invention further defines, described adjustment member comprise the retaining structure that is fixed on housing and with retaining structure buckle sliding part that can the relative retaining structure motion of in the vertical direction.

The present invention further defines, and described housing has accommodates the sliding part of described adjustment member the holding hole that can make sliding part move up and down along it.

The present invention further defines, the sliding part of described adjustment member is provided with multiple clasp grooves, described multiple clasp groove in the vertical direction is separately in different level heights, and described retaining structure has and can be positioned at the clamping part that the clasp groove of differentiated levels coordinates with described sliding part.

The present invention further defines, and described adjustment member also comprises the first elastic component being mounted between described retaining structure and described sliding part, the pressing piece of being located at the sleeve on retaining structure and being fixedly connected with sleeve.

The present invention further defines, one end of described the first elastic component be sheathed on retaining structure and with described retaining structure butt, the other end be sheathed on sliding part and with described sliding part butt.

The present invention further defines, described sliding part comprises main part, is extended and arranged and stretch into holding part in described sleeve and be recessed to form downwards and for accommodating the spatial accommodation of the first elastic component by main part top by main part, and described retaining structure has the perforation that the holding part of a confession sliding part passes.

The present invention further defines, and is also provided with a guide runner being positioned on described holding part on described sliding part, and described retaining structure has a slider guide coordinating with the guide runner of described sliding part.

The present invention further defines, described holding part be by the bottom of main part extend upward described main part top arrange, described spatial accommodation is formed between described main part and described holding part.

The present invention further defines, and described the first elastic component is sheathed on the periphery of the holding part of described sliding part, and the diapire butt of its bottom and described main part.

The present invention further defines, and described guide runner and described clasp groove are all located on the position that described holding part extends described main part top, and described guide runner and described clasp groove are vertical configuration setting.

The present invention further defines, and described holding part is column setting, and described guide runner is to be located on described holding part along the axial direction of described holding part, and described clasp groove is to be located on described holding part along the circumferential direction of described holding part.

The present invention further defines, and the main part of described sliding part also horizontally outward extends the carrier being provided with described retaining structure butt.

The present invention further defines, described retaining structure comprises the base that is fixedly mounted on housing, be mounted on fastener on base, be located at the second elastic component between fastener and described base, be mounted on base and be positioned at the snap close piece of fastener top and be mounted on the seat of honour on snap close piece, and the clamping part of described retaining structure is located on described fastener.

The present invention further defines, described housing has by its diapire and upwards extends and arrange and for supporting two bolster stakes of base of described retaining structure and upwards being extended and arranged and retaining column between two bolster stakes by its diapire, described holding hole is located on retaining column.

The present invention further defines, the base of described retaining structure comprise base portion, with the first reference column of the corresponding setting of bolster stake of housing, by base portion to the limited post of downward-extension setting, upwards extend the fixed head of setting and upwards extended two the second reference columns of setting by base portion by base portion, described limited post between two the first reference columns and with the corresponding setting of retaining column of described housing.

The present invention further defines, described base also has the first through hole passing for the holding part of described sliding part, described fixed head and the second reference column lay respectively at the relative both sides of described the first through hole, and described slider guide is to protrude out setting by the inwall of described base portion towards the first through hole.

The present invention further defines, and the bolster stake of described housing is provided with the first threaded hole, and described the first reference column is provided with the fixed orifice corresponding with the first threaded hole of housing.

The present invention further defines, and described the first through hole is to run through the base portion of base from top to bottom and limited post arranges, and with the corresponding setting of holding hole of described housing.

The present invention further defines, and described fixed head is provided with the first pilot hole coordinating with described fastener and the second pilot hole coordinating with described snap close piece.

The present invention further defines, and described the first pilot hole and the second pilot hole interval arrange, and described the first pilot hole to the vertical range of base portion upper surface is less than the vertical range of described the second pilot hole to base portion upper surface.

The present invention further defines, described base also has by base portion and upwards extends and arrange and be positioned at two stoppers around of the first through hole and be positioned at the projection of stopper side, described projection between described fixed head and described the second reference column and with the corresponding setting of the first pilot hole of fixed head.

The present invention further defines, the fastener of described retaining structure is mounted on base and between the fixed head and stopper of base, it comprises the body of arcuation, is outwards protruded out and arranged and extend laterally with the abutting part of the stopper butt of base and by abutting part the fixed leg that arranges and coordinates with the first pilot hole of base by body opposite end, and described clamping part is to extend setting by the inwall of body towards described abutting part.

The present invention further defines, and the second elastic component of described retaining structure is sheathed on the fixed leg of described fastener, the abutting part butt of its one end and fastener, the fixed head butt of the other end and base.

The present invention further defines, and described retaining structure also has by the stopper of the abutting part of fastener, base and the projection of base and encloses the bit space that allows forming.

The present invention further defines, and described snap close piece has board body part, extended the fixed part that arranges and coordinates with the second pilot hole of the fixed head of base, arranged and hold location division on the second reference column of being located at base, upwards extended the projection of setting and upwards extended the latch part of setting by board body part by board body part by the extension of the board body part other end by board body part one end.

The present invention further defines, and the second reference column of described base is provided with the second threaded hole, and the location division of described snap close piece is provided with the fastener hole corresponding with the second threaded hole of base.

The present invention further defines, in the board body part of described snap close piece, be also provided be positioned at described retaining structure allow opening corresponding to bit space, described projection and described latch part are located at respectively the relative corner of described opening.

The present invention further defines, and the latch part of described snap close piece comprises the arm being extended straight up by board body part and be located at arm tip lock the hook part of buckling seat.

The present invention further defines, the drive division that the described seat of honour comprises framework and arranged to downward-extension by framework, the corresponding setting of opening of described drive division and described snap close piece also can with the abutting part butt of described fastener.

The present invention further defines, the described seat of honour also has by framework and encloses the second through hole that forms and supply the holding part of described sliding part to pass, the corresponding setting of the first through hole of described the second through hole and described base, the perforation of described retaining structure is to be made up of second through hole at the described seat of honour and the first through hole of described base.

The present invention further defines, and is also provided with the accepting hole, the hook part of the latch part of described snap close piece and the framework buckle that pass for the projection of snap close piece in the framework at the described seat of honour.

The present invention further defines, described housing comprises insulating body and is mounted on the lid on insulating body, described the first flexible board, the second flexible board are all located between described insulating body and lid, and described retaining column is located on insulating body, and described bolster stake is located on insulating body.

The present invention further defines, described insulating body have be two the first side walls of arcuation setting, with two the first side walls join end to end the second sidewall arranging and the diapire being connected with the first side wall, the second sidewall bottom, described insulating body has by the first side wall, the second sidewall and diapire and encloses the host cavity forming.

The present invention further defines, and described retaining column and described bolster stake are all upwards to extend setting by the diapire of insulating body.

The present invention further defines, the connecting portion that the pressing piece of described adjustment member comprises head and arranged to downward-extension by head, the sleeve of described adjustment member holds on the seat of honour of being located at described retaining structure and has with the connecting portion of described pressing piece and coordinates perforate, described lid is provided with the via hole corresponding with the holding hole of insulating body, and the holding part of described sliding part is contained in the perforate of described sleeve.

The present invention further defines, described lid comprises to be located at the shielding part on insulating body and to be located at the handle of grabbing on shielding part, described shielding part is recessed to form the groove that is useful on the head of accommodating pressing piece downwards from its top, described via hole runs through the bottom of being located at shielding part and being positioned at groove.

The present invention further defines, and the described lower main pole winding for magnetic resonance imaging also comprises the first row antenna be located in the first flexible board, be located at second row antenna in the second flexible board and the 3rd row's antenna of housing is arranged antenna with the 4th.

The present invention further defines, and described the 3rd row's antenna, the 4th row's antenna are located in the host cavity of insulating body.

The present invention further defines, and described the first flexible board, the second flexible board enclose and are formed with the receiving space of accommodating patient's lower limb with housing respectively.

Lower limb coil block for magnetic resonance imaging of the present invention is realized in the following way: a kind of lower limb coil block for magnetic resonance imaging, it comprises sick bed and the above-mentioned lower main pole winding for magnetic resonance imaging, the described lower limb coil groups for magnetic resonance imaging is located at described sick bed, and the first flexible board, the second flexible board in the vertical direction of the described lower main pole winding for magnetic resonance imaging can move relative to sick bed.

Of the present inventionly can also realize in the following way for the lower limb coil block of magnetic resonance imaging: a kind of lower limb coil block for magnetic resonance imaging, it comprises sick bed and is mounted on the above-mentioned lower main pole winding for magnetic resonance imaging on sick bed, and the housing in the vertical direction of the described lower main pole winding for magnetic resonance imaging can move relative to sick bed.

Compared with prior art, lower limb coil block for magnetic resonance imaging of the present invention is adjusted the height for the relative sick bed of housing in the vertical direction of the lower main pole winding of magnetic resonance imaging by being mounted on adjustment member on housing and that can the relative housing of in the vertical direction move up and down, and then realize the different lower limb of different patient's thicknesses are carried out to magnetic resonance imaging object, thereby obtain the magnetic resonance image (MRI) of the good patient's lower limb of picture quality, be convenient to doctor's correct diagnosis.

[brief description of the drawings]

Fig. 1 is the structural representation of the present invention for the lower limb coil block of magnetic resonance imaging.

Fig. 2 is the three-dimensional combination figure of lower main pole winding of the present invention.

Fig. 3 is the three-dimensional exploded view of lower main pole winding of the present invention.

Fig. 4 is the three-dimensional cutaway view along Fig. 2 A-A direction.

Fig. 5 is the enlarged drawing of circle part in Fig. 4.

Fig. 6 is the three-dimensional combination figure of the adjustment member of lower main pole winding of the present invention.

Fig. 7 is the three-dimensional exploded view of the adjustment member shown in Fig. 6.

Fig. 8 is the stereographic map of adjusting the sliding part of member shown in Fig. 7.

Fig. 9 is the three-dimensional combination figure of the retaining structure of the adjustment member shown in Fig. 7.

Figure 10 is the three-dimensional exploded view of the retaining structure of the adjustment member shown in Fig. 9.

Figure 11 is the stereographic map of the base of the retaining structure of the adjustment member shown in Fig. 9.

Figure 12 is another visual angle stereographic map of the base of the retaining structure of the adjustment member shown in Fig. 9.

Figure 13 is the base of retaining structure and the three-dimensional combination figure of fastener of the adjustment member shown in Fig. 9.

Figure 14 is another visual angle stereographic map of the adjustment member shown in Fig. 9, and wherein the seat of honour is not mounted on base.

[embodiment]

Refer to shown in Fig. 1 to Figure 14, the present invention is a kind of lower limb coil block 200 for magnetic resonance imaging, and it comprises sick bed 60 and is mounted on sick bed 60 and the lower main pole winding 100 that carries out magnetic resonance imaging for the lower limb 50 to patient.Described lower main pole winding 100 in the vertical directions can move relative to sick bed 60, so that lower main pole winding 100 all can be coated preferably patient's lower limb in the time that different patients' lower limb are carried out to magnetic resonance imaging, and then obtain there is high-resolution, compared with the magnetic resonance imaging of patient's lower limb of high s/n ratio, thereby can make doctor carry out correct diagnosis to patient.

Described lower main pole winding 100 comprises the first flexible board 21 of holding the housing 1 be located on sick bed 60, be mounted on housing 1 and be positioned at housing 1 relative both sides and the second flexible board 22, be mounted on housing 1 and can drive the adjustment member 30 that the relative sick bed 60 of housing 1 moves up and down and be mounted on the cable 40 on housing 1.Described housing 1 comprises and holds insulating body 10 and the lid 11 of snap close on insulating body 10 being located on sick bed 60 and having a host cavity 103.Described the first flexible board 21 and the second flexible board 22 are to be all located between the insulating body 10 of housing 1 and lid 11.Described cable 40 is mounted on insulating body 10.Described lower main pole winding 100 also comprises the first row antenna 211 be located in the first flexible board 21, be located at the second row antenna 221 in the second flexible board 22 and be located at the 3rd row's antenna 212 and the 4th row's antenna 222 in the host cavity 103 of insulating body 10.

Please consult shown in Fig. 1 to Fig. 3 by emphasis, described the first flexible board 21 is symmetrically set in the relative both sides of housing 1 with described the second flexible board 2, and all can in the time that patient's lower limb 50 are positioned at insulating body 10 both sides, bend the lower limb 50 to be coated patient downwards.Described the first flexible board 21, the second flexible board 21 enclose and form a receiving space 70 of accommodating patient's lower limb 50 with insulating body 10 respectively.Described first row antenna 211 can be located in around these lower limb 50 of patient with the 3rd row's antenna 212 in the time of the first coated patient's of flexible board 21 bending lower limb 50, and described second row antenna 221 can be in the time of another lower limb 50 of the second coated patient of flexible board 22 bending and the 4th arranged antenna 222 and be located in around another lower limb 50 of patient.

Described lid 11 comprises and being mounted on insulating body 10 and for the shielding part 110 of sealed insulation body 10 and be located at grabbing 111 on shielding part 110.Described grabbing taken off lower main pole winding 100 maybe lower main pole winding 100 is positioned on sick bed 60 for operator's application of force 111 on sick bed 60.Described shielding part 110 is recessed to form the groove 112 of roughly rounded setting downwards from its top.Described shielding part 110 also has the via hole 113 that is penetration state and is located at groove 112 bottoms.The roughly rounded setting of described via hole 113.

Please consult shown in Fig. 3 to Fig. 5 by emphasis, described insulating body 10 is roughly the same by structure and the first housing 101 and the second housing 102 that are symmetry shape setting forms, its tool be two the first side walls 104 that arcuation arranges, with two end to end the second sidewalls 105 of the first side wall 104 and the diapire 106 that is connected with the first side wall 104, the second sidewall 105 bottoms.Described host cavity 103 is enclosed and is formed by the first side wall 104, the second sidewall 105 and diapire 106, for accommodating the 3rd row's antenna 212 and the 4th row's antenna 222.Described insulating body 10 also has two bolster stakes 108 that upwards protruded out the retaining column 107 of setting and be wholely set with retaining column 107 by diapire 106.Described retaining column 107 is roughly the setting of hollow cylinder shape, and its middle part is provided with the holding hole corresponding with the via hole 113 of lid 11 1070 from top to bottom.Described two bolster stakes 108 lay respectively at the relative both sides of retaining column 107.On described bolster stake 108, also run through and be provided with the first threaded hole 1080.On second sidewall 105 of described body 1, be horizontal penetration state setting by a circular hole 1050, for passing for cable 40.

Please consult shown in Fig. 5 to Figure 14 by emphasis, described adjustment member 30 is made up of plastic material, can drive for housing 1 in the vertical direction of the lower main pole winding 100 of magnetic resonance imaging and move relative to sick bed 60, it comprises the pressing piece 31 coordinating with the via hole 113 of lid 11, the sleeve 34 being fixedly connected with pressing piece 31, be contained in the holding hole 1070 of retaining column 107 of insulating body 10 and the sliding part 32 that can move up and down along holding hole 1070, be mounted on the retaining structure 33 being fixedly connected with between sleeve 34 and sliding part 32 and with the insulating body 10 of housing 1 and be mounted on the first elastic component 35 on sliding part 32.Described adjustment member 30 can act on externally applied forces on retaining structure 33 by sleeve 34 on pressing piece 31 time applying external force, and then by retaining structure 33, external force is put on the first elastic component 35, thereby make sliding part 32 vertically make stretching motion by pushing of the first elastic component 35, and by coordinating with the distance between adjustment sliding part 32 and retaining structure 33 between retaining structure 33 and sliding part 32, and then distance between the insulating body 10 of housing 1 and the sick bed face 600 of sick bed 60 of the lower main pole winding 100 for magnetic resonance imaging that is fixedly connected with retaining structure 33 of adjustment, to reach the object of different patients' lower limb 50 being carried out to magnetic resonance imaging for the lower main pole winding 100 of magnetic resonance imaging.

Described pressing piece 31 comprises the head 310 in the groove 112 that can be contained in lid 11 and is extended straight down the connecting portion 311 of setting by head 310 center bottom.The roughly rounded setting of described head 310, its place diameter of a circle is greater than the via hole 113 place diameter of a circles of described lid 11.Described connecting portion 31 can pass the via hole 113 of lid 11, and together with being located at 34 groups, sleeve.Described sleeve 34 is the plastic cement cylinder of a hollow form, on it, connects and is provided with a perforate 340.The connecting portion 311 of described pressing piece 31 can coordinate with perforate 340 and together with 34 groups, pressing piece 31 and sleeve is located at.Described pressing piece 31 is together with fixing group is located at sleeve 34.In the present embodiment, pressing piece 31 is together with riveting is located at sleeve 34.

Please consult shown in Fig. 5, Fig. 7 and Fig. 8 by emphasis, described sliding part 32 is roughly the setting of falling mushroom, and can under the elastic force effect of the first elastic component 35, make stretching motion by relative retaining structure 33 in the vertical directions.Described sliding part 32 comprises the main part 320 that also can move up and down along holding hole 1070 in the holding hole 1070 of the insulating body 10 that is contained in housing 1 and is extended straight up the holding part 321 arranging by main part 320.Described main part 320 is the hollow columnar setting that bottom is sealed, top is in communication with the outside shape.Described holding part 321 be by described main part 320 bottoms extend described main part 320 top arrange, its part of stretching out outside main part 320 is contained in the perforate 340 of sleeve 34.Between described main part 320 and holding part 321, be formed with the spatial accommodation 322 of accommodating the first elastic component 35.Described main part 320 is roughly bar shape setting, and described spatial accommodation 322 is to be recessed to form downwards by the top of main part 320, and described holding part 321 is to extend straight up setting by the middle part of the diapire 3200 of main part 320.Described holding part 321 parts are arranged in spatial accommodation 322.

Described the first elastic component 35 is sheathed on described holding part 321 and is positioned in the part of spatial accommodation 322.One end of described the first elastic component 35 can be connected on the diapire 3200 of main part 320, and the other end can be connected on retaining structure 33.The top of described main part 320 is horizontally outward extended and is provided with carrier 3201, can be with retaining structure 33 butts for judging the flexible situation of the first elastic component 35.Described holding part 321 is roughly column setting, and it has the guide runner 3210 that is disposed radially and along circumferentially and the multiple clasp grooves 3211 that are arranged in parallel.Described guide runner 3210 is located at described holding part 321 and is extended on the position outside main part 320, and it is in communication with the outside and roughly rectangular setting.Described clasp groove 3211 is located at described holding part 321 and is extended on the position outside main part 320, and is set in distance with described guide runner 3210.Described clasp groove 3211 can coordinate with retainer 33 for adjusting the distance between main part 320 and retaining structure 33.Described multiple clasp groove 3211 in the vertical directions are separately in different level heights.

Please consult shown in Fig. 7, Fig. 9 to Figure 14 by emphasis, described retaining structure 33 is mounted between described sliding part 32 and sleeve 34, and it comprises base 330 on the bolster stake 108 of the insulating body 10 that is fixedly mounted on described housing 1, be mounted on fastener 331 on base 330, be mounted on the second elastic component 332 between base 330 and fastener 331, be mounted on base 330 and be positioned at two snap close pieces 333 of fastener 331 tops and be mounted on the seat of honour 334 on snap close piece 333.

Please consult shown in Figure 10 to Figure 12 by emphasis, described base 330 comprise hold on the bolster stake 108 of being located at insulating body 10 and be tabular arrange base portion 3300, by base portion 3300 bottoms to downward-extension arrange two the first reference columns 3301, by base portion 3300 center bottom to downward-extension arrange limited post 3302 and by base portion 3300 extends straight up setting fixed head 3303.The corresponding setting of insulating body 10 bolster stake 108 of described the first reference column 3301 and housing 1, can hold on the bolster stake 108 of being located at insulating body 10 in base portion 3300.Described base 330 also has the countersink 3304 being recessed to form from base portion 3300 top corresponding with the first reference column 3301 is set from top to bottom downwards.Described the first reference column 3301 bottoms are run through and are provided with the fixed orifice 33010 being communicated with countersink 3304.The corresponding setting of the first threaded hole 1080 of described fixed orifice 33010 and insulating body 10, can supply bolt (not shown) to pass.Described base portion 3300 is passed fixed orifice 33010 and is coordinated and be fixed on insulating body 10 with the first threaded hole 1080 of insulating body 10 by bolt (not shown).Described limited post 3302 is between two first reference columns 3301, and for sheathed for the top of the first elastic component 35.

Described base 330 also comprises and runs through successively the first through hole 3305 that base portion 3300 and limited post 3302 arrange from top to bottom.The corresponding setting of holding hole 1070 of described the first through hole 3305 and insulating body 10, passes for the holding part 321 for sliding part 32.Described base portion 3300 is positioned at the first through hole 3305 inwall 33000 around and protrudes out and be provided with slider guide 33001 towards the first through hole 3305.Described slider guide 33001 can coordinate with the guide runner of the holding part of sliding part 32 321 3210, and holding part 321 in the vertical directions of sliding part 31 are moved relative to retaining structure 33, and the holding part 321 of anti-skidding part 31 rotates.Described fixed head 3303 is located at the lengthwise of base portion 3300 to a side, which is provided with the first pilot hole 33030 and two second pilot holes 33031 that arrange that are square of two rounded settings.Described two the first pilot holes 33030 are horizontal penetration state to be located on fixed head 3303, and both centers are identical to the distance of base portion 3300.Described two the second pilot holes 33031 are also horizontal penetration state to be located on fixed head 3303, and both centers are identical to the distance of base portion 3300.Described the first pilot hole 33030 is positioned at the below of the second pilot hole 33031.Distance between described two the first pilot holes 33030 is greater than two distances between the second pilot hole 33031.

Described base also comprises by base portion 3300 and extends straight up two stoppers 3306 that arrange and be positioned at the first through hole 3305 relative both sides.On described base portion 3300, be also provided with described stopper 3306 and and the contiguous countersink 3304 of stopper 3306 between resigning hole 33002.Described resigning hole 33002 is upper and lower penetration state to be located on base portion 3300, and roughly rectangular shape setting.Described base portion 3300 also upwards extends and is provided with projection 3307.Described projection 3307 is that setting is upwards extended on the top that is positioned at a side of resigning hole 33002 by base portion 3300.Described projection 3307 is oppositely arranged with fixed head 3303.Roughly be vertical configuration setting with described stopper 3306 for described 3307.Described base 330 also comprises two the second reference columns 3308 that extended straight up setting by base portion 3300.Described the second reference column 3308 middle parts are provided with the second threaded hole 33080.

Please consult shown in Figure 10 and Figure 13 by emphasis, described fastener 331 comprises the body 3310 that is roughly arcuation setting, is located at two abutting parts 3311 at body 3310 two ends and is extended the fixed leg 3312 of setting by abutting part 3311.Described abutting part 3311 be by the end of body 3310 outwardly horizontal-extending arrange, can with the stopper of base 330 3306 butts.Described fixed leg 3312 is to be arranged by an abutting part 3311 side horizontal-extending relative with stopper 3306, can coordinate with the first pilot hole 33030 of the fixed head of base 330 3303.Described the second elastic component 332 is sheathed on fixed leg 3312, and its one end can be connected to the surface of the fixed head 3303 of base 330, and the other end is connected to the surface of abutting part 3311.Described abutting part 3311 has the first dip plane 3313 of a stopper 3306 towards base 330.Described abutting part 3311 is roughly vertical tabular setting.Described fixed leg 3312 is roughly vertical configuration setting with abutting part 3311.Described body 3310 place diameter of a circles are identical with the first through hole 3305 place diameter of a circles of described base 330.Described body 3310 can be under the pushing tow of the second elastic component 332 the first through hole 3305 of part covering base 330.Described fastener 331 also comprises the arcuation clamping part 3314 being arranged by body 3310 horizontal-extendings.Described clamping part 3314 can coordinate with the clasp groove 3211 of the holding part of sliding part 32 321, for the distance between the base portion 330 of the base 330 of the relative retaining structure 33 in bottom of adjustment slide 32.Described clamping part 3314 can be positioned at above the first through hole 3305 of base 330 in the time that the second elastic component 332 recovers elastic deformation pushing tow abutting part 3311.Described abutting part 3311 can be corresponding with base 330 in the time that fastener 331 is mounted on base 330 stopper 3306, projection 3307 enclose together to form to be positioned at and allow bit space 3315 above the resigning hole 33002 of base 330.

Please consult shown in Figure 10 and Figure 14 by emphasis, described snap close piece 333 is mounted on base 330 and is positioned at the top of fastener 331, and it comprises the holding parts 3331 that is roughly the board body part 3330 of the tabular setting of level, arranged by board body part 3330 one end horizontal-extendings, the location division 3332 being arranged by board body part 3330 other end horizontal-extendings, is upwards extended the projection 3333 arranging and extended straight up the latch part 3334 arranging by board body part 3330 by board body part 3330.Described board body part 3330 is provided with the opening 3335 being roughly square.Described board body part 3330 is held on the projection 3307 of being located at described base 330.The setting that is roughly square of described holding parts 3331, can coordinate with the second pilot hole 33031 of the fixed head of base 330 3303.Described location division 3332 is provided with the fastener hole 33320 corresponding with the second threaded hole 33080 of the second reference column 3308 of base 330, can pass for determining bolt (not shown), and the second threaded hole 33080 by bolt (not shown) and base 330 coordinate that snap close piece 333 is fixed on base 330.Described projection 3333 is located at respectively relative two corners of opening 3335 with described latch part 3334.Described latch part 3334 comprises the arm 33340 being extended straight up by board body part 3330 and is located at the hook part 33341 of arm 33340 ends.Described snap close piece 333 is positioned at the both sides of the first through hole 3305 of base 330 in the time being mounted on base 330.Described hook part 33341 can be snapped on the seat of honour 334, for preventing that the seat of honour 334 from departing from described snap close piece 333 in the process of moving upward.

Please consult shown in Fig. 9 and Figure 10 by emphasis, the described seat of honour 334 is roughly the setting of frame shape, two drive divisions 3342 that it has a framework 3340, is positioned at second through hole 3341 at framework 3340 middle parts and is arranged to downward-extension respectively by relative both sides of framework 3340.The corresponding setting of the first through hole 3305 of described the second through hole 3341 and base 330, passes for the holding part 321 for sliding part 32.The roughly rounded setting of described the second through hole 3341.Described drive division 3342 is to extend straight down setting by framework 3340 position corresponding with the opening 3335 of snap close piece 333.Described drive division 3342 ends have the second dip plane 33421 coordinating with the first dip plane 3313 of fastener 331.When can moving down at the seat of honour 334, described drive division 3342 compresses the abutting part 3311 of fastener 331 through the opening 3335 of snap close piece 333, fastener 331 is moved towards the fixed head 3303 of base 330, and then make the clamping part 3314 of fastener 331 depart from the clasp groove 3210 of the holding part 321 of sliding part 32.In described framework 3340, be also provided with the accepting hole corresponding with the projection 3333 of snap close piece 333 3343.Described accepting hole 3343 can slide so that the relative snap close piece 333 in the seat of honour 334 moves up and down along snap close piece 333 volume projections 3333.The size of described the second through hole 3341 place circles is less than the size of the perforate 340 place circles of described sleeve 34.The perforation 335 that the first through hole 3305 of described base 330, second through hole 3341 at the seat of honour 334 and the space between the board body part 3330 of the two snap close pieces 333 described retaining structure 33 of common formation passes for the holding part 321 of described sliding part 32.

The following assembling process of describing the retaining structure 33 of adjusting member 30 in detail: first by the coordinating of the first pilot hole 33030 of the fixed leg 3312 of fastener 331 and the fixed head 3303 of base 330, the fastener 331 that is arranged with the second elastic component 332 is mounted on base 330.Now, the abutting part 3311 of fastener 331 and stopper 3306 butts of base 330, the through hole 3305 of the clamping part 3314 part covering bases 330 of fastener 331.Then the fastener hole 33320 of the coordinating of the second pilot hole 33031 by the holding parts 3331 of snap close piece 333 and the fixed head 3303 of base 330, location division 3332 that bolt (not shown) passes snap close piece 333 and with the second threaded hole 33080 of the second reference column 3308 of base 330 coordinate that snap close piece 333 is fixedly mounted on base 330.Now, snap close piece 333 is positioned at the top of fastener 331.The opening 3335 of described snap close piece 333 is positioned at the top of the abutting part 3311 of described fastener 331.Finally the hook part 33341 of latch part 3334 by the coordinating of the projection 3333 of snap close piece 333 and the accepting hole 3343 at the seat of honour 334, snap close piece 333 and the framework 3340 at the seat of honour 334 coordinate that the seat of honour 334 is mounted on snap close piece 333.Now, the hook part 33341 of described snap close piece 333 is snapped in the framework 33340 at the seat of honour 334.The drive division 3342 at the described seat of honour 334 stretches in the opening 3335 of described snap close piece 333.Now complete the assembling of retaining structure 33.

The following assembling process of adjusting member 30 of describing in detail: first the cooperation of cooperation, the clasp groove 3211 of holding part 321 of sliding part 32 and the clamping part 3314 of the fastener 331 of retaining structure 33 by the guide runner 3210 of holding part 321 of sliding part 32 and the slider guide 33001 of the base 330 of described retaining structure 33 is with together with being mounted on the sliding part 32 that is arranged with the first elastic component 35 with retaining structure 33.Now, the clamping part 3314 of the fastener 331 of described retaining structure 33 and clasp groove 3211 buckles of the holding part 321 of sliding part 32.The part that the holding part 321 of described sliding part 32 extends main part 320 is from bottom to top successively through second through hole 3341 at the first through hole 3305 of the base 330 of described retaining structure 33, the seat of honour 334 and stretch out outside the seat of honour 334 of retaining structure 33.The holding part 321 that one end of described the first elastic component 35 is sheathed on sliding part 32 is positioned in the part of spatial accommodation 322, and the other end is sheathed on the limited post 3302 of base 330 of retaining structure 33.The bottom of described the first elastic component 35 is connected on the diapire 3200 of main part 320 of sliding part 32, and top is connected to being positioned on limited post 3302 bottom around of base 330 of retaining structure 33.Then sleeve 34 is mounted on holding part 33.Now, hold on the seat of honour 334 of being located at retaining structure 33 bottom of sleeve 34.The holding part 321 of described sliding part 32 passes the perforation 335 of retaining structure 33 and stretches in the perforate 340 of sleeve 34.Finally coordinate the top pressing piece 31 is mounted on to sleeve 34 by the connecting portion 311 of pressing piece 31 and the perforate 340 of sleeve 34.Now, completed the assembling of adjusting member 30.

The following assembling process of describing lower main pole winding 100: the host cavity 103 that first the 3rd row's antenna 212, the 4th row's antenna 222 is placed in to insulating body 10.Then the cable 40 of the host cavity 103 that is arranged in insulating body 10 is drawn from insulating body 10 circular holes 1050.Then coordinate to be positioned on insulating body 10 by also not completing the adjustment member 30 that pressing piece 31 assembles for the bolster stake 108 of the insulating body 10 of housing 1 by adjusting first reference column 3301 of base 330 of retaining structure 33 of member 30.Then by bolt (not shown) through adjust member 30 retaining structure 33 base 330 the first reference column 3301 fixed orifice 33010 and coordinate with the first threaded hole 1080 of the bolster stake 108 of insulating body 10 and be fixedly mounted on insulating body 10 not completing the adjustment member 30 that pressing piece 31 assembles.Then by thering is the first flexible board 21 of first row antenna 211, second flexible board 22 with second row antenna 221 is mounted on insulating body 10.Then lid 11 is mounted on insulating body 10.Now the first flexible board 21, the second flexible board 22 are located between insulating body 10 and lid 11.Finally pressing piece 31 is located on the sleeve 34 of adjusting member 30 from the upper set of lid 11.Now, the connecting portion 311 of pressing piece 31 coordinates through the via hole 113 of lid 11 and the perforate 340 of sleeve 34.Now, completed the assembling of time main pole winding 100.

In the time need to carrying out magnetic resonance imaging to patient's lower limb 50, on the sick bed face 600 of the sick bed 60 that can after patient lies on the sick bed 60 of lower limb coil block 200, lower main pole winding 100 be placed in and make the diapire 106 of the insulating body 10 of the housing 1 of lower main pole winding 100 be undertaken on sick bed face 600, patient's lower limb 50 are arranged in the receiving space 70 that the first flexible board 21, the second flexible board 22 form with insulating body 10 respectively.Then adjust the height of the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of the insulating body 10 of housing 1 by adjusting member 30 according to the fineness of patient's lower limb 50, to bend the first flexible board 21 downwards, when the coated patients' of the second flexible board 22 lower limb 50, make the first flexible board 21 that contains first row antenna 211, the second flexible board 22 that contains second row antenna 221 can better be fitted with patient's lower limb 50, and then can obtain compared with high image resolution, compared with the image of the lower limb magnetic resonance imaging of high s/n ratio, thereby can make correct the diagnosing for patient of doctor.

The process of the height of the sick bed face 600 of the following relative sick bed 60 of diapire 106 in the vertical direction of describing the insulating body 10 of adjusting housing 1 in detail.When the patient's of pending magnetic resonance imaging lower limb 50 thinner, when the first flexible board 21, the second flexible board 22 and patient lie on sick bed 60, between the top of lower limb 50, there is interval, now need the height of the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of the insulating body 10 of the housing 1 that reduces lower main pole winding 100.Now, the head 310 that operator only needs the application of force to press the pressing piece 31 of adjusting member 30 downwards moves downward pressing piece 31.In the time that pressing piece 31 moves downward, can press with moving sleeve 34 moves downward the framework 3340 at the seat of honour 334 of retaining structure 33 downwards, and then the drive division 3342 that makes to be wholely set with framework 3340 is through the opening 3335 of the snap close piece 333 of retaining structure 33 and move downward until the second dip plane 33421 of drive division 3342 and the first dip plane 3313 butts of the abutting part 3311 of fastener 331.

In the time of the second dip plane 33421 butt of the first dip plane 3313 of abutting part 3311 and drive division 3342, can make on the one hand fastener 331 along continuous straight runs move and compress the second elastic component 332 on the fixed leg 3312 that retaining structure 33 is sheathed on fastener 33 towards the fixed head 3303 of the base 330 of retaining structure 33, can make on the other hand the abutting part 3311 of fastener 331 press the base portion 3300 of the base 330 of retaining structure 33 downwards.Exit the clasp groove 3211 of the holding part 321 of the sliding part 32 being previously mated at the clamping part 3314 of fastener 331 along continuous straight runs fastener 331 in the time that the fixed head 3303 of the base 330 of retaining structure 33 moves.In the time that pressing the base portion 3300 of base 330 downwards, the abutting part 3311 of fastener 331 can make the base portion 3300 of base 330 move downward and compress the top of the first elastic component 35 outside the limited post 3302 that one end is sheathed on base 330, and then compression the first elastic component 35, thereby the holding part 321 that makes sliding part 32 stretches out the base 330 of the relative holding part 33 of part in the vertical direction of main part 320 to move upward, until all there is no interval with the top of patient's lower limb 50 for the first flexible board 21 of the lower main pole winding 100 of magnetic resonance imaging, the second flexible board 22.Because the insulating body 10 of the housing 1 for the lower main pole winding 100 of magnetic resonance imaging is to be fixed together by bolt (not shown) and the base 330 of the retaining structure 33 of adjusting member 30, the sick bed face 600 that can drive the relative sick bed 60 of insulating body 10 in the vertical direction of housing 1 in the time that the base 330 of retaining structure 33 moves downward moves downward until be mounted between the top of lower limb 50 of the first flexible board 21, the second flexible board 22 and patient on housing 1 and there is no interval.Now, can remove the external force on the head 310 that puts on the pressing piece 31 of adjusting member 30.

In the time removing externally applied forces, the second elastic component 332 being mounted between the fixed head 3303 of base 330 of retaining structure 33 and the abutting part 3311 of fastener 33 can recover elastic deformations and the abutting part 3311 of pushing tow fastener 33, makes fastener 33 along continuous straight runs towards the through hole 3305 directions motions of base 330 until the clamping part 3314 of fastener 33 and sliding part 32 are positioned at the buckle of the clasp groove 3211 of previous clasp groove 3111 belows that coordinate with clamping part 3314.At fastener 33 along continuous straight runs in the through hole 3305 directions motions of base 330, the abutting part 3311 of fastener 33 also by the first dip plane 3313 with the coordinating of the second dip plane 33421 of the drive division 3342 at the seat of honour 334 drive division 3342 is moved upward until the hook part 33341 of snap close piece 333 and framework 3340 buckles at the seat of honour 334.When the seat of honour 334 moves upward upwards pushing tow be mounted on sleeve 34 on the seat of honour 334 and under the drive of sleeve 34 time pressing piece 31 move upward.This moment, by adjusting the distance that coordinates to realize the diapire 3200 with the diapire in the vertical direction of the base portion 3300 of the base 330 of retaining structure 33 that reduce sliding part 32 of the clamping part 3314 of fastener 331 of retaining structure 33 and the clasp groove 3211 of the holding part 321 of sliding part 32.Because the base 330 of retaining structure 33 is together with fixing group is located at insulating body 10, the diapire 3200 of sliding part 32 all contacts with the sick bed face 600 of sick bed 60 in whole adjustment process, and also the distance of diapire in the vertical direction of the base portion 3300 by reducing the diapire 3200 of sliding part 32 and the base 330 of retaining structure 33 realizes the distance of reduction for the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of the insulating body 10 of the housing 1 of the lower main pole winding 100 of magnetic resonance imaging.

In the time that until the patient's of magnetic resonance imaging lower limb 60, more the first flexible board 21, the second flexible board 22 are positioned at patient and lie on sick bed 60 when the below, top of lower limb 50, now need to raise for the height of the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of the insulating body 10 of the housing 1 of the lower main pole winding 100 of magnetic resonance imaging.This adjustment process catches up with that to state reduction process roughly the same, and what difference was only to coordinate with the clamping part 3314 of the fastener 331 of retaining structure 33 is the clasp groove 3211 that sliding part 32 is positioned at clasp groove 3211 tops that previously coordinate with clamping part 3314.

In sum, the cooperation of the lower main pole winding 100 of the lower limb coil block 200 for magnetic resonance imaging of the present invention clasp groove 3211 in differentiated levels by the clamping part 3314 of the fastener 331 of retaining structure 33 and holding part 321 in the vertical directions of sliding part 32 realizes elongation and the shortening of the relative retaining structure 33 of sliding part 32, realize the object of the distance that changes sliding part 32 and retaining structure 33 in the vertical directions, and then the diapire 106 of the insulating body 10 of the housing 1 of realization together with being fixedly mounted on retaining structure 33, supply the object of the height of sick bed face 600 both in the vertical directions of the sick bed 60 of diapire 3200 butts of sliding part 32, use the object of the different lower limb 50 of different patient's thicknesses being carried out to magnetic resonance imaging for the lower main pole winding 100 of magnetic resonance imaging thereby realize.Because the first flexible board 21, the second flexible board 22 are fixedly to be mounted on the insulating body 10 of housing 1, the distance of the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of adjustment insulating body 10 is namely adjusted the height of the sick bed face 600 of the first flexible board 21, the relative sick bed 60 of the second flexible board 22 in the vertical direction.

The foregoing is only preferred embodiment of the present invention, is not whole embodiment, and the variation of any equivalence that those of ordinary skill in the art take technical solution of the present invention by reading instructions of the present invention, is claim of the present invention and contains.

Claims (42)

1. the lower main pole winding for magnetic resonance imaging, the first flexible board and the second flexible board that it comprises housing and is mounted on the relative both sides of housing, is characterized in that: the described lower main pole winding for magnetic resonance imaging also comprises the adjustment member that is mounted on housing and can moves up and down at the relative housing of vertical direction.

2. the lower main pole winding for magnetic resonance imaging as claimed in claim 1, is characterized in that: described adjustment member comprise the retaining structure that is fixed on housing and with retaining structure buckle sliding part that can the relative retaining structure motion of in the vertical direction.

3. the lower main pole winding for magnetic resonance imaging as claimed in claim 2, is characterized in that: described housing has accommodates the sliding part of described adjustment member the holding hole that can make sliding part move up and down along it.

4. the lower main pole winding for magnetic resonance imaging as claimed in claim 3, it is characterized in that: the sliding part of described adjustment member is provided with multiple clasp grooves, described multiple clasp groove in the vertical direction is separately in different level heights, and described retaining structure has and can be positioned at the clamping part that the clasp groove of differentiated levels coordinates with described sliding part.

5. the lower main pole winding for magnetic resonance imaging as claimed in claim 4, is characterized in that: described adjustment member also comprises the first elastic component being mounted between described retaining structure and described sliding part, the pressing piece of being located at the sleeve on retaining structure and being fixedly connected with sleeve.

6. the lower main pole winding for magnetic resonance imaging as claimed in claim 5, is characterized in that: one end of described the first elastic component be sheathed on retaining structure and with described retaining structure butt, the other end be sheathed on sliding part and with described sliding part butt.

7. the lower main pole winding for magnetic resonance imaging as claimed in claim 5, it is characterized in that: described sliding part comprises main part, extended and arranged and stretch into holding part in described sleeve and be recessed to form downwards and for accommodating the spatial accommodation of the first elastic component by main part top by main part, described retaining structure has the perforation that the holding part of a confession sliding part passes.

8. the lower main pole winding for magnetic resonance imaging as claimed in claim 7, is characterized in that: on described sliding part, be also provided with a guide runner being positioned on described holding part, described retaining structure has a slider guide coordinating with the guide runner of described sliding part.

9. the lower main pole winding for magnetic resonance imaging as claimed in claim 8, it is characterized in that: described holding part be by the bottom of main part extend upward described main part top arrange, described spatial accommodation is formed between described main part and described holding part.

10. the lower main pole winding for magnetic resonance imaging as claimed in claim 9, is characterized in that: described the first elastic component is sheathed on the periphery of the holding part of described sliding part, and the diapire butt of its bottom and described main part.

The 11. lower main pole windings for magnetic resonance imaging as claimed in claim 9, it is characterized in that: described guide runner and described clasp groove are all located on the position that described holding part extends described main part top, and described guide runner and described clasp groove are vertical configuration setting.

The 12. lower main pole windings for magnetic resonance imaging as claimed in claim 11, it is characterized in that: described holding part is column setting, described guide runner is to be located on described holding part along the axial direction of described holding part, and described clasp groove is to be located on described holding part along the circumferential direction of described holding part.

13. lower main pole windings for magnetic resonance imaging as described in any one in claim 7 to 12, is characterized in that: the main part of described sliding part horizontally outward extends the carrier being provided with described retaining structure butt.

14. lower main pole windings for magnetic resonance imaging as described in any one in claim 8 to 12, it is characterized in that: described retaining structure comprises the base that is fixedly mounted on housing, be mounted on fastener on base, be located at the second elastic component between fastener and described base, be mounted on base and be positioned at the snap close piece of fastener top and be mounted on the seat of honour on snap close piece, the clamping part of described retaining structure is located on described fastener.

The 15. lower main pole windings for magnetic resonance imaging as claimed in claim 14, it is characterized in that: described housing has by its diapire and upwards extends and arrange and for supporting two bolster stakes of base of described retaining structure and upwards being extended and arranged and retaining column between two bolster stakes by its diapire, described holding hole is located on retaining column.

The 16. lower main pole windings for magnetic resonance imaging as claimed in claim 15, it is characterized in that: the base of described retaining structure comprise base portion, with the first reference column of the corresponding setting of bolster stake of housing, by base portion to the limited post of downward-extension setting, upwards extend the fixed head of setting and upwards extended two the second reference columns of setting by base portion by base portion, described limited post between two the first reference columns and with the corresponding setting of retaining column of described housing.

The 17. lower main pole windings for magnetic resonance imaging as claimed in claim 16, it is characterized in that: described base also has the first through hole passing for the holding part of described sliding part, described fixed head and the second reference column lay respectively at the relative both sides of described the first through hole, and described slider guide is to protrude out setting by the inwall of described base portion towards the first through hole.

The 18. lower main pole windings for magnetic resonance imaging as claimed in claim 17, is characterized in that: the bolster stake of described housing is provided with the first threaded hole, described the first reference column is provided with the fixed orifice corresponding with the first threaded hole of housing.

The 19. lower main pole windings for magnetic resonance imaging as claimed in claim 17, is characterized in that: described the first through hole is to run through the base portion of base from top to bottom and limited post arranges, and with the corresponding setting of holding hole of described housing.

The 20. lower main pole windings for magnetic resonance imaging as claimed in claim 18, is characterized in that: described fixed head is provided with the first pilot hole coordinating with described fastener and the second pilot hole coordinating with described snap close piece.

The 21. lower main pole windings for magnetic resonance imaging as claimed in claim 20, it is characterized in that: described the first pilot hole and the second pilot hole interval arrange, and described the first pilot hole to the vertical range of base portion upper surface is less than the vertical range of described the second pilot hole to base portion upper surface.

The 22. lower main pole windings for magnetic resonance imaging as claimed in claim 20, it is characterized in that: described base also has by base portion and upwards extends and arrange and be positioned at two stoppers around of the first through hole and be positioned at the projection of stopper side, described projection between described fixed head and described the second reference column and with the corresponding setting of the first pilot hole of fixed head.

The 23. lower main pole windings for magnetic resonance imaging as claimed in claim 22, it is characterized in that: the fastener of described retaining structure is mounted on base and between the fixed head and stopper of base, it comprises the body of arcuation, is outwards protruded out and arranged and extend laterally with the abutting part of the stopper butt of base and by abutting part the fixed leg that arranges and coordinates with the first pilot hole of base by body opposite end, and described clamping part is to extend setting by the inwall of body towards described abutting part.

The 24. lower main pole windings for magnetic resonance imaging as claimed in claim 23, it is characterized in that: the second elastic component of described retaining structure is sheathed on the fixed leg of described fastener, the abutting part butt of its one end and fastener, the fixed head butt of the other end and base.

The 25. lower main pole windings for magnetic resonance imaging as claimed in claim 23, is characterized in that: described retaining structure also has by the stopper of the abutting part of fastener, base and the projection of base and encloses the bit space that allows forming.

The 26. lower main pole windings for magnetic resonance imaging as claimed in claim 25, is characterized in that: described snap close piece has board body part, extended the fixed part that arranges and coordinates with the second pilot hole of the fixed head of base, arranged and hold location division on the second reference column of being located at base, upwards extended the projection of setting and upwards extended the latch part of setting by board body part by board body part by the extension of the board body part other end by board body part one end.

The 27. lower main pole windings for magnetic resonance imaging as claimed in claim 26, is characterized in that: the second reference column of described base is provided with the second threaded hole, and the location division of described snap close piece is provided with the fastener hole corresponding with the second threaded hole of base.

The 28. lower main pole windings for magnetic resonance imaging as claimed in claim 26, it is characterized in that: in the board body part of described snap close piece, be also provided be positioned at described retaining structure allow opening corresponding to bit space, described projection and described latch part are located at respectively the relative corner of described opening.

The 29. lower main pole windings for magnetic resonance imaging as claimed in claim 28, is characterized in that: the latch part of described snap close piece comprises the arm being extended straight up by board body part and be located at arm tip lock the hook part of buckling seat.

The 30. lower main pole windings for magnetic resonance imaging as claimed in claim 29, it is characterized in that: the drive division that the described seat of honour comprises framework and arranged to downward-extension by framework, the corresponding setting of opening of described drive division and described snap close piece also can with the abutting part butt of described fastener.

The 31. lower main pole windings for magnetic resonance imaging as claimed in claim 30, it is characterized in that: the described seat of honour also has by framework and encloses the second through hole that forms and supply the holding part of described sliding part to pass, the corresponding setting of the first through hole of described the second through hole and described base, the perforation of described retaining structure is to be made up of second through hole at the described seat of honour and the first through hole of described base.

The 32. lower main pole windings for magnetic resonance imaging as claimed in claim 31, is characterized in that: in the framework at the described seat of honour, be also provided with the accepting hole, the hook part of the latch part of described snap close piece and the framework buckle that pass for the projection of snap close piece.

The 33. lower main pole windings for magnetic resonance imaging as claimed in claim 19, it is characterized in that: described housing comprises insulating body and is mounted on the lid on insulating body, described the first flexible board, the second flexible board are all located between described insulating body and lid, described retaining column is located on insulating body, and described bolster stake is located on insulating body.

The 34. lower main pole windings for magnetic resonance imaging as claimed in claim 33, it is characterized in that: described insulating body have be two the first side walls of arcuation setting, with two the first side walls join end to end the second sidewall arranging and the diapire being connected with the first side wall, the second sidewall bottom, described insulating body has by the first side wall, the second sidewall and diapire and encloses the host cavity forming.

The 35. lower main pole windings for magnetic resonance imaging as claimed in claim 34, is characterized in that: described retaining column and described bolster stake are all upwards to extend setting by the diapire of insulating body.

The 36. lower main pole windings for magnetic resonance imaging as claimed in claim 34, it is characterized in that: the connecting portion that the pressing piece of described adjustment member comprises head and arranged to downward-extension by head, the sleeve of described adjustment member holds on the seat of honour of being located at described retaining structure and has with the connecting portion of described pressing piece and coordinates perforate, described lid is provided with the via hole corresponding with the holding hole of insulating body, and the holding part of described sliding part is contained in the perforate of described sleeve.

The 37. lower main pole windings for magnetic resonance imaging as claimed in claim 36, it is characterized in that: described lid comprises to be located at the shielding part on insulating body and to be located at the handle of grabbing on shielding part, described shielding part is recessed to form the groove that is useful on the head of accommodating pressing piece downwards from its top, described via hole runs through the bottom of being located at shielding part and being positioned at groove.

The 38. lower main pole windings for magnetic resonance imaging as claimed in claim 34, is characterized in that: the described lower main pole winding for magnetic resonance imaging also comprises the first row antenna be located in the first flexible board, be located at second row antenna in the second flexible board and the 3rd row's antenna of housing is arranged antenna with the 4th.

The 39. lower main pole windings for magnetic resonance imaging as claimed in claim 38, is characterized in that: described the 3rd row's antenna, the 4th row's antenna are located in the host cavity of insulating body.

40. lower main pole windings for magnetic resonance imaging as described in any one in claim 1 to 12, is characterized in that: described the first flexible board, the second flexible board enclose and are formed with the receiving space of accommodating patient's lower limb with housing respectively.

41. 1 kinds of lower limb coil blocks for magnetic resonance imaging, it is characterized in that: comprise sick bed and be mounted on the lower main pole winding for magnetic resonance imaging as described in any one in claim 1 to 40 on sick bed, the first flexible board, the second flexible board in the vertical direction of described lower main pole winding can move relative to sick bed.

42. 1 kinds of lower limb coil blocks for magnetic resonance imaging, it is characterized in that: comprise sick bed and be mounted on the lower main pole winding for magnetic resonance imaging as described in any one in claim 1 to 40 on sick bed, the housing in the vertical direction of described lower main pole winding can move relative to sick bed.