CN104076303B - For lower main pole winding and the assembly thereof of magnetic resonance imaging - Google Patents

Abstract

The present invention discloses a kind of lower main pole winding for magnetic resonance imaging, be mounted on for carrying out magnetic resonance imaging to the lower limb of patient in MR imaging apparatus, it comprises housing, be mounted on housing relative to the first flexible board and second flexible board of both sides and to be mounted on housing and the adjustment component that can move up and down at the relative housing of vertical direction.The present invention also provides a kind of lower limb coil block for magnetic resonance imaging, and it comprises sick bed and is mounted on the above-mentioned lower main pole winding on sick bed, and the housing of described lower main pole winding adjusts the height of the relative sick bed of its in the vertical direction by adjustment component.Lower limb coil block for magnetic resonance imaging of the present invention adjusts the height of the relative sick bed of housing in the vertical direction by the adjustment component be mounted on the housing of lower main pole winding, and then adjust the height of the first flexible board, the relative sick bed of the second flexible board in the vertical direction, thus realize the magnetic resonance image (MRI) obtaining the good patient's lower limb of quality when the lower limb that different patient's thickness is different carry out magnetic resonance imaging, be convenient to doctor and correctly diagnose.

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, particularly relate to a kind of lower main pole winding for magnetic resonance imaging and assembly thereof.

[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 used for carrying out magnetic resonance imaging to the lower limb of patient, and it comprises body, the lid of snap close on body and first flexible board be located between body and lid and the second flexible board with a host cavity.First flexible board and the second flexible board are symmetrically set in the relative both sides of body, and can bend downwards when the lower limb of patient are positioned at body both sides with the lower limb of coated patient.First flexible board, the second flexible board enclose the receiving space being formed and accommodate patient's lower limb respectively with body.Lower main pole winding also comprise the first row antenna be located in the first flexible board, the second row antenna be located in the second flexible board, be located in the host cavity of body the 3rd row antenna and the 4th arrange antenna.First row antenna when the first flexible board bends lower limb of coated patient and can be located at the intrinsic 3rd and arrange antenna and be located in around these lower limb of patient.Second row antenna when the second flexible board bends another lower limb of coated patient and can be located at the intrinsic 4th and arrange antenna 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 the magnetic resonance image (MRI) of patient's lower limb by another lower limb that the lower limb of the common coated patient of antenna arranged by the first row antenna of lower main pole winding and the 3rd, the common coated patient of antenna arranged by second row antenna and the 4th.But because the thickness of the lower limb of each patient is different, and lower main pole winding is fixedly mounted on sick bed and its in the vertical direction to move relative to sick bed, also the height of the relative sick bed of main pole winding in the vertical direction is namely descended not regulate, when the patient utilizing this lower main pole winding thinner to lower limb carries out magnetic resonance imaging, there will be because second row antenna, the 3rd row's antenna are distant and cause the image resolution ratio signal to noise ratio (S/N ratio) that is lower, image of magnetic resonance image (MRI) that obtains lower from patient's lower limb, and then the phenomenon that doctor cannot correctly be diagnosed according to image; When utilizing this lower main pole winding to carry out magnetic resonance imaging to the patient that lower limb are thicker, first row antenna can be there is distant and make the problem that the image resolution ratio of the magnetic resonance image (MRI) of acquisition is low, the low doctor of causing of signal to noise ratio (S/N ratio) cannot correctly diagnose from the lower limb of patient.

Therefore, necessaryly provide a kind of lower main pole winding for magnetic resonance imaging and assembly thereof, for overcoming the defect that prior art exists.

[summary of the invention]

The object of this invention is to provide a kind of lower main pole winding for magnetic resonance imaging, the image of quality good patient's lower limb magnetic resonance imaging can be obtained when carrying out magnetic resonance imaging to the lower limb of patient, thus 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, the image of quality good patient's lower limb magnetic resonance imaging can be obtained when carrying out magnetic resonance imaging, thus guarantee that doctor correctly diagnoses.

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

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

The present invention defines further, and described housing has the sliding part of accommodating described adjustment component and the holding hole that sliding part can be made to move up and down along it.

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

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

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

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

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

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

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

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

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

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

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

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

The present invention defines further, the base of described retaining structure comprise base portion, corresponding with the bolster stake of housing arrange the first reference column, by the extended downwards limited post of base portion, by the upwards extended fixed head of base portion and by upwards extended two the second reference columns of base portion, described limited post is between two the first reference columns and correspondingly with the retaining column of described housing arrange.

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

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

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

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

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

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

The present invention defines further, the fastener of described retaining structure to be mounted on base and between the fixed head and stopper of base, it comprise arcuation body, outwards protrude out setting by body opposite end and the abutting part abutted with the stopper of base and being extended laterally by abutting part is arranged and the fixed leg coordinated with the first pilot hole of base, described clamping part is extended towards described abutting part by the inwall of body.

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

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

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

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

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

The present invention defines further, and the described seat of honour comprises framework and by the extended downwards drive division of framework, described drive division is corresponding with the opening of described snap close piece to be arranged and can abut with the abutting part of described fastener.

The present invention defines further, the described seat of honour also has to be enclosed by framework and is formed and the second through hole supplying the holding part of described sliding part to pass, described second through hole is corresponding with the first through hole of described base to be arranged, and the perforation of described retaining structure is made up of second through hole at the described seat of honour and the first through hole of described base.

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

The present invention defines further, described housing comprises insulating body and is mounted on the lid on insulating body, described 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 defines further, described insulating body have arrange in arcuation two the first side walls, join end to end with two the first side walls the second sidewall arranged and the diapire be connected with the first side wall, the second sidewall bottom, described insulating body has and encloses by the first side wall, the second sidewall and diapire the host cavity formed.

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

The present invention defines further, the pressing piece of described adjustment component comprises head and by the extended connecting portion of head downwards, the sleeve of described adjustment component hold be located at described retaining structure the seat of honour on and have and coordinate perforate with the connecting portion of described pressing piece, 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 defines further, described lid comprise the shielding part be located on insulating body and be located on shielding part grab handle, described shielding part is recessed to form the groove of the head for accommodating pressing piece downwards from its top, described via hole runs through is located at the bottom that shielding part is positioned at groove.

The present invention defines further, 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 the second row antenna in the second flexible board and antenna arranged by the 3rd row's antenna and the 4th in housing.

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

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

Lower limb coil block for magnetic resonance imaging of the present invention realizes 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.

Lower limb coil block for magnetic resonance imaging of the present invention can also realize in the following way: 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 by being mounted on housing and can adjusting the height of the relative sick bed of housing in the vertical direction of the lower main pole winding for magnetic resonance imaging relative to the adjustment component that housing moves up and down by the vertical direction, and then realize the object that the lower limb different to different patient's thickness carry out magnetic resonance imaging, thus obtain the magnetic resonance image (MRI) of the good patient's lower limb of picture quality, be convenient to the correct diagnosis of doctor.

[accompanying drawing explanation]

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 encircled portion in Fig. 4.

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

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

Fig. 8 is the stereographic map of the sliding part of the component of adjustment shown in Fig. 7.

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

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

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

Figure 12 is another view stereo figure of the base of the retaining structure of the adjustment component shown in Fig. 9.

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

Figure 14 is another view stereo of the adjustment component figure 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 to be mounted on sick bed 60 and lower main pole winding 100 for carrying out magnetic resonance imaging to the lower limb 50 of patient.Described lower main pole winding 100 in the vertical direction can move relative to sick bed 60, to make the lower limb of lower main pole winding 100 good coated patient of equal energy when carrying out magnetic resonance imaging to the lower limb of different patient, and then obtain and have high-resolution, magnetic resonance imaging compared with patient's lower limb of high s/n ratio, thus doctor can be made to carry out correct diagnosis to patient.

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

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

Described lid 11 comprise be mounted on insulating body 10 and for sealed insulation body 10 shielding part 110 and be located at grabbing 111 on shielding part 110.Lower main pole winding 100 takes off 111 be maybe positioned on sick bed 60 by lower main pole winding 100 for operators' force by described grabbing 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 be located in penetration state bottom groove 112.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 that symmetrically shape is arranged the first housing 101 and the second housing 102 are formed, its tool be arcuation setting two the first side walls 104, with two end to end second sidewalls 105 of the first side wall 104 and the diapire 106 that is connected with the first side wall 104, second sidewall 105 bottom.Described host cavity 103 is enclosed by the first side wall 104, second sidewall 105 and diapire 106 and is formed, and arranges antenna 222 for accommodating the 3rd row's antenna 212 and the 4th.Described insulating body 10 also has the retaining column 107 upwards protruding out setting by diapire 106 and two bolster stakes 108 be wholely set with retaining column 107.Described retaining column 107 is roughly arranged in hollow cylinder shape, is provided with the holding hole 1070 corresponding with the via hole 113 of lid 11 in the middle part of it from top to bottom.Described two bolster stakes 108 lay respectively at the relative both sides of retaining column 107.Described bolster stake 108 also runs through and is provided with the first threaded hole 1080.Second sidewall 105 of described body 1 is arranged by a circular hole 1050 in horizontal penetration state, for passing for cable 40.

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

Described pressing piece 31 comprises can be contained in head 310 in the groove 112 of lid 11 and by the extended straight down connecting portion 311 of 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 circle 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, throughly on it is provided with a perforate 340.Together with the connecting portion 311 of described pressing piece 31 can coordinate with perforate 340 and is located at by 34 groups, pressing piece 31 and sleeve.Described pressing piece 31 and sleeve 34 be fixing group be located at together with.In the present embodiment, pressing piece 31 and sleeve 34 are together with riveting is located at.

Please consult shown in Fig. 5, Fig. 7 and Fig. 8 by emphasis, described sliding part 32 roughly in the setting of falling mushroom, and can make stretching motion by relative retaining structure 33 in the vertical direction under the elastic force effect of the first elastic component 35.Described sliding part 32 to comprise in the holding hole 1070 of the insulating body 10 being contained in housing 1 and the main part 320 that can move up and down along holding hole 1070 and by the extended straight up holding part 321 of main part 320.The hollow columnar that described main part 320 is bottom end closure, top is in communication with the outside shape is arranged.Described holding part 321 extends the top setting of described main part 320 by described main part 320 bottom, and it stretches out in the perforate 340 being partially housed in sleeve 34 outside main part 320.The spatial accommodation 322 of collecting first elastic component 35 is formed between described main part 320 and holding part 321.Described main part 320 is roughly arranged in bar shape, and described spatial accommodation 322 is recessed to form downwards by the top of main part 320, and described holding part 321 is extended straight up by the middle part of the diapire 3200 of main part 320.Described holding part 321 part is arranged in spatial accommodation 322.

Described 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 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 upper horizontal of described main part 320 stretches out and is provided with carrier 3201, can abut the flexible situation for judging the first elastic component 35 with retaining structure 33.Described holding part 321 is roughly arranged in column, and it has the guide runner 3210 that is disposed radially and circumferentially and multiple clasp grooves 3211 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 the distance for adjusting between main part 320 and retaining structure 33 with retainer 33.Described multiple clasp groove 3211 in the vertical direction is in different level heights separately.

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 the base 330 on the bolster stake 108 of the insulating body 10 being fixedly mounted on described housing 1, the fastener 331 be mounted on base 330, is mounted on the second elastic component 332 between base 330 and fastener 331, is mounted on base 330 and two snap close pieces 333 be positioned at above fastener 331 and the seat of honour 334 be mounted on snap close piece 333.

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

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

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

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

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

Please consult shown in Fig. 9 and Figure 10 by emphasis, the described seat of honour 334 be roughly arranged in frame-shaped, its two drive divisions 3342 having a framework 3340, be positioned at the second through hole 3341 in the middle part of framework 3340 and arranged respectively to downward-extension by relative both sides of framework 3340.Described second through hole 3341 is corresponding with the first through hole 3305 of base 330 to be arranged, and passes for the holding part 321 for sliding part 32.The roughly rounded setting of described second through hole 3341.Described drive division 3342 is extended straight down by the position that framework 3340 is corresponding with the opening 3335 of snap close piece 333.Described drive division 3342 end has the second dip plane 33421 coordinated with the first dip plane 3313 of fastener 331.Described drive division 3342 can compress the abutting part 3311 of fastener 331 through the opening 3335 of snap close piece 333 when the seat of honour 334 moves down, fastener 331 is moved towards the fixed head 3303 of base 330, and then makes the clamping part 3314 of fastener 331 depart from the clasp groove 3210 of the holding part 321 of sliding part 32.Described framework 3340 is also provided with the accepting hole 3343 corresponding with the projection 3333 of snap close piece 333.Described accepting hole 3343 can slide the relative snap close piece 333 in the seat of honour 334 is moved up and down along snap close piece 333 volume projection 3333.The size of described second through hole 3341 place circle is less than the size of the perforate 340 place circle of described sleeve 34.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 two snap close pieces 333 form the perforation 335 that described retaining structure 33 supplies the holding part 321 of described sliding part 32 to pass jointly.

The following assembling process of retaining structure 33 describing adjustment component 30 in detail: first by the fixed leg 3312 of fastener 331 with the coordinating of the first pilot hole 33030 of the fixed head 3303 of base 330 fastener 331 being arranged with the second elastic component 332 is mounted on base 330.Now, the abutting part 3311 of fastener 331 abuts with the stopper 3306 of base 330, the through hole 3305 of the clamping part 3314 part covering base 330 of fastener 331.Then by the coordinating of the second pilot hole 33031 of the holding parts 3331 of snap close piece 333 and the fixed head 3303 of base 330, bolt (not shown) through the location division 3332 of snap close piece 333 fastener hole 33320 and with the second threaded hole 33080 of the second reference column 3308 of base 330 coordinate fixedly be mounted on base 330 by snap close piece 333.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 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 the hook part 33341 of latch part 3334 and the framework 3340 at the seat of honour 334 coordinate to be mounted on snap close piece 333 at the seat of honour 334.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 namely complete the assembling of retaining structure 33.

The following assembling process describing adjustment component 30 in detail: first by the cooperation of the guide runner 3210 of the holding part 321 of sliding part 32 and the cooperation of the slider guide 33001 of the base 330 of described retaining structure 33, the clasp groove 3211 of the holding part 321 of sliding part 32 and the clamping part 3314 of the fastener 331 of retaining structure 33 with together with the sliding part 32 being arranged with the first elastic component 35 is mounted on retaining structure 33.Now, the clamping part 3314 of the fastener 331 of described retaining structure 33 and clasp groove 3211 buckle 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 first through hole 3305 of base 330 of described retaining structure 33, second through hole 3341 at the seat of honour 334 outside the seat of honour 334 of stretching out retaining structure 33.The holding part 321 that one end of described 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 the base 330 of retaining structure 33.The bottom of described first elastic component 35 is connected on the diapire 3200 of the main part 320 of sliding part 32, and top is connected on the bottom being positioned at around limited post 3302 of the base 330 of retaining structure 33.Then sleeve 34 is mounted on holding part 33.Now, the bottom of sleeve 34 is held and is located on the seat of honour 334 of retaining structure 33.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.The top pressing piece 31 to be mounted on sleeve 34 is coordinated with the perforate 340 of sleeve 34 finally by the connecting portion 311 of pressing piece 31.Now, the assembling of adjustment component 30 is namely completed.

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

When needing to carry out magnetic resonance imaging to the lower limb 50 of patient, can on the sick bed 60 that patient lies in lower limb coil block 200 after the sick bed face 600 of sick bed 60 that is placed in by lower main pole winding 100 makes that the diapire 106 of the insulating body 10 of the housing 1 of lower main pole winding 100 is undertaken on sick bed face 600, the lower limb 50 of patient are arranged in the receiving space 70 that the first flexible board 21, second flexible board 22 is formed with insulating body 10 respectively.Then pass through according to the fineness of patient's lower limb 50 height that adjustment component 30 adjusts 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, to bend the first flexible board 21 downwards, the first flexible board 21 containing first row antenna 211 is made during the lower limb 50 of the coated patient of the second flexible board 22, the second flexible board 22 containing second row antenna 221 can better be fitted with the lower limb 50 of patient, and then comparatively high image resolution can be obtained, compared with the image of the lower limb magnetic resonance imaging of high s/n ratio, thus correct the diagnosing for patient of doctor can be made.

The following process describing the height in the sick bed face 600 of the relative sick bed 60 of diapire 106 in the vertical direction of the insulating body 10 of adjustment housing 1 in detail.When the lower limb 50 of the patient of pending magnetic resonance imaging are thinner, namely when the first flexible board 21, second flexible board 22 and patient lie on sick bed 60 lower limb 50 top between there is interval, now namely need the height in 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 reducing lower main pole winding 100.Now, operator's only need to exert a force head 310 of pressing piece 31 of the component 30 of pressing adjustment downwards makes pressing piece 31 move downward.The framework 3340 at the seat of honour 334 of retaining structure 33 can be pressed downwards with moving sleeve 34 moves downward when pressing piece 31 moves downward, and then make the drive division 3342 be wholely set with framework 3340 pass 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 abuts with the first dip plane 3313 of the abutting part 3311 of fastener 331.

Fastener 331 can be made on the one hand when the first dip plane 3313 of abutting part 3311 abuts with the second dip plane 33421 of drive division 3342 to move towards the fixed head 3303 of the base 330 of retaining structure 33 and compress retaining structure 33 in the horizontal direction and to be sheathed on the second elastic component 332 on the fixed leg 3312 of fastener 33, the base portion 3300 of the abutting part 3311 that can the make fastener 331 on the other hand base 330 of pressing retaining structure 33 downwards.When fastener 331 moves towards the fixed head 3303 of the base 330 of retaining structure 33 in the horizontal direction, the clamping part 3314 of fastener 331 exits the clasp groove 3211 of the holding part 321 of the sliding part 32 be previously mated.The base portion 3300 of base 330 can be made to move downward when the abutting part 3311 of fastener 331 presses the base portion 3300 of base 330 downwards and compress the top that one end is sheathed on the first elastic component 35 outside the limited post 3302 of base 330, and then compression the first elastic component 35, thus the base 330 making the holding part 321 of sliding part 32 stretch out the relative holding part 33 of part in the vertical direction of main part 320 moves upward, until for the lower main pole winding 100 of magnetic resonance imaging the first flexible board 21, second flexible board 22 all and the top of the lower limb 50 of patient there is no interval.Because the insulating body 10 of housing 1 being used for the lower main pole winding 100 of magnetic resonance imaging is fixed together by the base 330 of bolt (not shown) with the retaining structure 33 of adjustment component 30, the sick bed face 600 of the relative sick bed 60 of insulating body 10 in the vertical direction of housing 1 can be driven to move downward when the base 330 of retaining structure 33 moves downward until the first flexible board 21, second flexible board 22 of being mounted on housing 1 and patient lower limb 50 top between there is no interval.Now, the external force on the head 310 of the pressing piece 31 putting on adjustment component 30 can be removed.

When removing externally applied forces, the second elastic component 332 be mounted between the fixed head 3303 of the base 330 of retaining structure 33 and the abutting part 3311 of fastener 33 can recover the abutting part 3311 of elastic deformation and pushing tow fastener 33, makes fastener 33 in the horizontal direction towards the motion of through hole 3305 direction 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 below the previous clasp groove 3111 that coordinates with clamping part 3314.Fastener 33 in the horizontal direction towards base 330 the motion of through hole 3305 direction while, the abutting part 3311 of fastener 33 also makes drive division 3342 move upward until the hook part 33341 of snap close piece 333 and framework 3340 buckle at the seat of honour 334 by the first dip plane 3313 and the second coordinating of dip plane 33421 of the drive division 3342 at the seat of honour 334.When the seat of honour 334 moves upward can 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, namely by the distance that coordinate the diapire 3200 and diapire in the vertical direction of the base portion 3300 of the base 330 of retaining structure 33 that realize reduce sliding part 32 of the adjustment clamping part 3314 of fastener 331 of retaining structure 33 with the clasp groove 3211 of the holding part 321 of sliding part 32.Because of base 330 and the insulating body 10 of retaining structure 33 be fixing group be located at together with, the diapire 3200 of sliding part 32 all contacts with the sick bed face 600 of sick bed 60 in whole adjustment process, is also namely realized the distance in 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 reduced for magnetic resonance imaging with the distance of the diapire in the vertical direction of the base portion 3300 of the base 330 of retaining structure 33 by the reduction diapire 3200 of sliding part 32.

When more namely the first flexible board 21, second flexible board 22 is positioned at below the top of lower limb 50 when patient lies on sick bed 60 lower limb 60 of the patient until magnetic resonance imaging, now namely need to raise the height 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.This adjustment process catches up with that to state reduction process roughly the same, the clasp groove 3211 above what difference was only to coordinate with the clamping part 3314 of the fastener 331 of retaining structure 33 is clasp groove 3211 that sliding part 32 is positioned at previously to be coordinated with clamping part 3314.

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

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

Claims (41)

1. the lower main pole winding for magnetic resonance imaging, it the first flexible board and the second flexible board of comprising housing and being 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 component being mounted on and housing also can move up and down at the relative housing of vertical direction; Described adjustment component comprises and is fixed on retaining structure on housing and with retaining structure buckle and can the sliding part that moves of the relative retaining structure of in the vertical direction.

2. as claimed in claim 1 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described housing has the sliding part of accommodating described adjustment component and the holding hole that sliding part can be made to move up and down along it.

3. as claimed in claim 2 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the sliding part of described adjustment component is provided with multiple clasp groove, described multiple clasp groove in the vertical direction is in different level heights separately, and described retaining structure has and can be positioned at a clamping part of the clasp slot fit of differentiated levels with described sliding part.

4. as claimed in claim 3 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described adjustment component also comprises the pressing piece being mounted on the first elastic component between described retaining structure with described sliding part, being located at the sleeve on retaining structure and being fixedly connected with sleeve.

5. as claimed in claim 4 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: one end of described first elastic component to be sheathed on retaining structure and to abut with described retaining structure, the other end to be sheathed on sliding part and to abut with described sliding part.

6. as claimed in claim 4 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described sliding part comprises main part, and the holding part that stretch into described sleeve in extended by main part and is recessed to form downwards by main part top and spatial accommodation for accommodating the first elastic component, and described retaining structure has a perforation of passing for the holding part of sliding part.

7., as claimed in claim 6 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described sliding part is also provided with a guide runner be positioned on described holding part, described retaining structure has a slider guide coordinated with the guide runner of described sliding part.

8. as claimed in claim 7 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described holding part extends upward the top setting of described main part by the bottom of main part, and described spatial accommodation is formed between described main part and described holding part.

9., as claimed in claim 8 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described first elastic component is sheathed on the periphery of the holding part of described sliding part, and its bottom abuts with the diapire of described main part.

10. as claimed in claim 8 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described guide runner and described clasp groove are all located at described holding part and are extended on the position on described main part top, and described guide runner and described clasp groove are that vertical configuration is arranged.

11. as claimed in claim 10 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described holding part is that column is arranged, described guide runner is located on described holding part along the axial direction of described holding part, and described clasp groove is located on described holding part along the circumferential direction of described holding part.

12. lower main pole windings for magnetic resonance imaging according to any one of claim 6 to 11, is characterized in that: the main part of described sliding part horizontally outward extends the carrier being provided with and abutting with described retaining structure.

13. lower main pole windings for magnetic resonance imaging according to any one of claim 7 to 11, it is characterized in that: described retaining structure comprises the base be fixedly mounted on housing, the fastener be mounted on base, is located at the second elastic component between fastener and described base, is mounted on base and the snap close piece be positioned at above fastener and the seat of honour be mounted on snap close piece, and the clamping part of described retaining structure is located on described fastener.

14. as claimed in claim 13 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described housing has upwards extended by its diapire and for base two bolster stakes of supporting described retaining structure and upwards extended by its diapire and between two bolster stakes retaining column, described holding hole is located on retaining column.

15. as claimed in claim 14 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the base of described retaining structure comprise base portion, corresponding with the bolster stake of housing arrange the first reference column, by the extended downwards limited post of base portion, by the upwards extended fixed head of base portion and by upwards extended two the second reference columns of base portion, described limited post is between two the first reference columns and correspondingly with the retaining column of described housing arrange.

16. as claimed in claim 15 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described base also has the first through hole supplying the holding part of described sliding part to pass, described fixed head and the second reference column lay respectively at the relative both sides of described first through hole, and described slider guide protrudes out setting by the inwall of described base portion towards the first through hole.

17. as claimed in claim 16 for the lower main pole winding of magnetic resonance imaging, and it is characterized in that: the bolster stake of described housing is provided with the first threaded hole, described first reference column is provided with the fixed orifice corresponding with the first threaded hole of housing.

18., as claimed in claim 16 for the lower main pole windings of magnetic resonance imaging, is characterized in that: described first through hole runs through the base portion of base from top to bottom and limited post is arranged, and correspondingly with the holding hole of described housing arrange.

19., as claimed in claim 17 for the lower main pole winding of magnetic resonance imaging, is characterized in that: described fixed head is provided with the first pilot hole coordinated with described fastener and the second pilot hole coordinated with described snap close piece.

20. as claimed in claim 19 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described first pilot hole and the second pilot hole interval are arranged, described first pilot hole is less than the vertical range of described second pilot hole to base portion upper surface to the vertical range of base portion upper surface.

21. as claimed in claim 19 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described base also has and two stoppers being positioned at first through hole around and the projection that be positioned at stopper side upwards extended by base portion, described projection is between described fixed head with described second reference column and correspondingly with the first pilot hole of fixed head arrange.

22. as claimed in claim 21 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the fastener of described retaining structure to be mounted on base and between the fixed head and stopper of base, it comprise arcuation body, outwards protrude out setting by body opposite end and the abutting part abutted with the stopper of base and being extended laterally by abutting part is arranged and the fixed leg coordinated with the first pilot hole of base, described clamping part is extended towards described abutting part by the inwall of body.

23. as claimed in claim 22 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the second elastic component of described retaining structure is sheathed on the fixed leg of described fastener, its one end abuts with the abutting part of fastener, and the other end abuts with the fixed head of base.

24., as claimed in claim 22 for the lower main pole windings of magnetic resonance imaging, is characterized in that: described retaining structure also has and encloses by the projection of the abutting part of fastener, the stopper of base and base the bit space that allows formed.

25., as claimed in claim 24 for the lower main pole windings of magnetic resonance imaging, is characterized in that: described snap close piece has board body part, the extended and fixed part that is that coordinate with the second pilot hole of the fixed head of base, extended and hold the location division be located on the second reference column of base, by the upwards extended projection of board body part and by the upwards extended latch part of board body part by the board body part other end by board body part one end.

26. as claimed in claim 25 for the lower main pole winding of magnetic resonance imaging, and it is characterized in that: the second reference column of described base is provided with the second threaded hole, the location division of described snap close piece is provided with the fastener hole corresponding with the second threaded hole of base.

27. as claimed in claim 25 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the board body part of described snap close piece is also provided with the opening making bit space corresponding being positioned at described retaining structure, described projection and described latch part are located at the relative corner of described opening respectively.

28., as claimed in claim 27 for the lower main pole windings of magnetic resonance imaging, is characterized in that: the latch part of described snap close piece comprises the arm that extended straight up by board body part and is located at the hook part that arm tip lock buckles seat.

29. as claimed in claim 28 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the described seat of honour comprises framework and by the extended downwards drive division of framework, described drive division is corresponding with the opening of described snap close piece to be arranged and can abut with the abutting part of described fastener.

30. as claimed in claim 29 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the described seat of honour also has to be enclosed by framework and formed and the second through hole supplying the holding part of described sliding part to pass, described second through hole is corresponding with the first through hole of described base to be arranged, and the perforation of described retaining structure is made up of second through hole at the described seat of honour and the first through hole of described base.

31., as claimed in claim 30 for the lower main pole winding of magnetic resonance imaging, is characterized in that: the framework at the described seat of honour is also provided with the accepting hole supplying the projection of snap close piece to pass, the hook part of the latch part of described snap close piece and framework buckle.

32. as claimed in claim 18 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described housing comprises insulating body and is mounted on the lid on insulating body, described 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.

33. as claimed in claim 32 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described insulating body have arrange in arcuation two the first side walls, join end to end with two the first side walls the second sidewall arranged and the diapire be connected with the first side wall, the second sidewall bottom, described insulating body has and encloses by the first side wall, the second sidewall and diapire the host cavity formed.

34., as claimed in claim 33 for the lower main pole winding of magnetic resonance imaging, is characterized in that: described retaining column and described bolster stake are all upwards extended by the diapire of insulating body.

35. as claimed in claim 33 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: the pressing piece of described adjustment component comprises head and by the extended connecting portion of head downwards, the sleeve of described adjustment component hold be located at described retaining structure the seat of honour on and have and coordinate perforate with the connecting portion of described pressing piece, 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.

36. as claimed in claim 35 for the lower main pole winding of magnetic resonance imaging, it is characterized in that: described lid comprise the shielding part be located on insulating body and be located on shielding part grab handle, described shielding part is recessed to form the groove of the head for accommodating pressing piece downwards from its top, described via hole runs through is located at the bottom that shielding part is positioned at groove.

37., as claimed in claim 33 for the lower main pole windings of magnetic resonance imaging, 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 the second row antenna in the second flexible board and antenna arranged by the 3rd row's antenna and the 4th in housing.

38., as claimed in claim 37 for the lower main pole winding of magnetic resonance imaging, is characterized in that: described 3rd row's antenna, the 4th row's antenna are located in the host cavity of insulating body.

39. lower main pole windings for magnetic resonance imaging according to any one of claim 1 to 11, is characterized in that: described first flexible board, the second flexible board enclose the receiving space being formed with and accommodating patient's lower limb respectively with housing.

40. 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 according to any one of claims 1 to 39 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.

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 according to any one of claims 1 to 39 on sick bed, the housing in the vertical direction of described lower main pole winding can move relative to sick bed.