CN104771824A - Intubation and induction device for renal artery intervention mainly by passing through radial artery - Google Patents
Intubation and induction device for renal artery intervention mainly by passing through radial artery Download PDFInfo
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- CN104771824A CN104771824A CN201510151895.3A CN201510151895A CN104771824A CN 104771824 A CN104771824 A CN 104771824A CN 201510151895 A CN201510151895 A CN 201510151895A CN 104771824 A CN104771824 A CN 104771824A
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- seal wire
- catheter
- conduit
- guide wire
- bolt
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Abstract
The invention provides an intubation and induction device for renal artery intervention mainly by passing through a radial artery. The intubation and induction device comprises a catheter and a guide wire and is characterized in that the guide wire is a metal memory type nickel-titanium alloy wire, penetrates into the catheter through a catheter entrance, and penetrates out of the catheter through a catheter exit; a half ball is arranged at the head of the guide wire, and the diameter of the half ball is equal to the diameter of the guide wire; a plurality of protruded knots are arranged on a part , penetrating into the catheter, of the guide wire at equal spaces, a blocking bolt is arranged between every two adjacent knots, a nickel-titanium alloy three-jaw support is arranged at the back end of each blocking bolt, and the three-jaw supports are closely clung to the outer walls of the blocking bolts and are axially parallel with the guide wire at room temperature, so that the guide wire can smoothly penetrate into the catheter; after the guide wire and the catheter enter a blood vessel, under the heating action of human body temperature, the three-jaw supports are thermally deformed, a free end of the front part of each three-jaw support expands and clings to the inner wall of the catheter, the blocking bolts are fixed in the catheter forwards, cannot move forwards, and cannot be fixed backwards, and the guide wire can singly and completely exit by virtue of the knots and the blocking bolts which are separated from the catheter, when the guide wire needs to move back.
Description
Technical field
The present invention relates to intubate and inductive technology that a kind of arteries gets involved (radiography or stent in the treatment), particularly a kind of intubate for the intervention of renal artery blood vessel and apparatus for deivation.
Background technology
Along with improving constantly of living standard, the variation of life style, the sick sickness rate of medicated porridge sample vascular is more and more higher, and the coronary heart disease that angiostenosis causes, nephropathy have become one of principal disease jeopardizing human life's health.The feature of Atherosclerotic Renal Artery Stenosis shows: can develop in 15% patient 5 years and entirely shut; In the patient 5 years of 10-20 ﹪, renal function will run down.Therefore, there is the patient of 5-15 ﹪ can develop into End-stage renal disease every year and become, become 3 annual death rate up to 50 ﹪ through dialysis treatment End-stage renal disease.At present, the treatment technology of cardiovascular diseases is quite ripe, has particularly saved the life of countless patients with coronary heart disease with intravascular stent interventional therapeutic technique, has achieved the curative effect attracted people's attention.And the interventional therapy of renal artery stenosis just achieves the goal from iliac artery, brachial artery intubate at present.But these two tremulous pulsies are all distributed in the deep layer at respective position, difficult puncture, difficult hemostasis, also exist certain difficulty and risk, also do not ensure on patient after the treatment rehabilitation duration in intervention procedure.Equally, heart arter intubate, through the application of many decades, also exposes its deficiency and drawback gradually, as different narrow location will from different position intubate, meet the pipe will inserted when blood vessel turns round just to be difficult to enter, likely cause restenosis, and multipath intubate also there are many deficiencies, such as, it is comparatively difficult that tibia tremulous pulse puts the hemostasis by compression of sheath intubate, and client need lies low overlong time, has occurred local hematoma, false aneurysm, arteriovenous fistula and retroperitoneal hematoma.Although there is closing apparatus, price is bad costly and to some patients's effect.In order to overcome above drawback, we sum up the feature at several arterial cannulation position, according to human vas distribution characteristics, according to regional nerve distribution number, in conjunction with clinical status, a kind of intubate of getting involved to renal artery based on trans-radial and apparatus for deivation are proposed.
Summary of the invention
The object of this invention is to provide a kind of renal artery with super-elasticity function and get involved intubate and apparatus for deivation, to realize Atherosclerotic Renal Artery Stenosis patient science, safety, conveniently to carry out interventional therapy, solve its disease painful.
For reaching above object, the present invention takes following technical scheme to be achieved:
The intubate got involved based on trans-radial to renal artery and an apparatus for deivation, comprise a length and be greater than the conduit of 1.2m, length slightly larger than the seal wire of catheter length, rear end of conduit is provided with a threeway and is communicated with medicine arm, duct inlet respectively; It is characterized in that, described seal wire is a kind of metal memory-type nitinol alloy wire, and it penetrates conduit from duct inlet and passes to conduit outlet, and seal wire head is provided with the semi-round ball with seal wire equal diameters; The first-class node being interval with multiple projection of the described seal wire penetrated in conduit, be equipped with one between each node and stop bolt, stop that the rear end of bolt is provided with and form three-jaw support by three sprig bars, this three-jaw support constituent material is Nitinol, during room temperature, three sprig bars are close to and are stopped bolt outer wall with guidewire shaft to parallel, make seal wire penetrate in conduit smoothly; When after seal wire and conduit intravasation, under the heat effect of body temperature, the temperature distortion of three sprig bars, its front free end opens, until touch pipe inner wall, at this moment, due to the agnail effect of three-jaw support, stop that bolt is forward fixed in the catheter, can not move ahead, seal wire is by node and stop bolt, fore-aft travel a bit of distance h, h can only be less than internodal; Due to suitable the thorn effect of three-jaw support, stop that bolt in the catheter can not by reverse fixing, when seal wire needs retrogressing, can all be exited separately by node and the stop bolt that is separated with conduit.
In such scheme, described seal wire end is provided with a dismountable rotary handle, and the periphery of duct inlet is provided with 360 degree of graduation marks.
Described internodal is 20cm.Described seal wire passes the part about 15cm of conduit outlet.Described seal wire end is connected with heater.
Advantage of the present invention is, in its intervention procedure, adopts ultra-strong elasticity and peculiar shape memory seal wire obviously can reduce the difficulty of intravasation, quick and precisely arrives focus point.Seal wire head is provided with the semi-round ball with seal wire equal diameters, can not cause damage after can ensureing seal wire insertion blood vessel to patient vessel's wall.
Penetrate and the seal wire in conduit adopt three-jaw supports, node and stop the combinative structure of bolt, seal wire can be made to penetrate smoothly in conduit in cold conditions; When after intravasation, because body temperature heat effect makes three-jaw support out, can ensure seal wire when moving ahead and conduit go together.When seal wire needs to retreat, due to the suitable thorn effect of three-jaw support, stop that bolt in the catheter can not by reverse fixing, therefore seal wire all can be exited separately by node and the stop bolt that is separated with conduit, thus when can ensure seal wire intravasation, there is higher spike and motility.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is Z portion enlarged drawing (structure of conduit inner guide wire) in Fig. 1.Wherein: b figure is that the A-A of a figure is to sectional view.
In Fig. 1, Fig. 2,1, seal wire; 2, duct inlet; 3, rotary handle; 4, medicine arm; 5, threeway; 6, conduit; 7, conduit outlet; 8, bolt is stopped; 9, three-jaw support; 10 nodes.
Detailed description of the invention
With reference to figure 1, a kind of intubate of getting involved based on trans-radial to renal artery and apparatus for deivation, comprise conduit 6, the strip metal memory-type seal wire 1 that a length is 1.2-1.6m, rear end of conduit has a threeway 5 to be communicated with medicine arm 4, duct inlet 2 respectively; The periphery of duct inlet is provided with 360 degree of graduation marks.Seal wire penetrates conduit from duct inlet 2 and passes to conduit outlet 7, and pass part and be about 15cm, seal wire head is provided with the semi-round ball with seal wire equal diameters; Its effect reduces seal wire to insert damaging again of causing patient vessel's wall after blood vessel.Conduit 2 adopts business-like existing arterial cannulation (the polyurethane resin surface peritoneum hydrophilic polymer conduit as in existing common technology); Seal wire 1 adopts NiTi (TiNi) alloy to make, and if model is the TiNi-01 B alloy wire of Q/XB1516, Q/XB1520, its transition temperature range is that 20 degree of-40 degree is just particularly suitable for.Different from steel wire in the past, TiNi alloy is a kind of memory function material, except have intensity high, wear-resisting, anti-corrosion, corrosion-resistant, without except the feature such as magnetic, good biocompatibility, (tensile strength is 850MPa also to have ultra-strong elasticity, yield strength is 195-690MPa, and percentage elongation can reach 25-50%) and shape-memory properties.Therefore, in its intervention procedure, obviously can reduce the difficulty of intravasation, quick and precisely arrive focus point.
Seal wire end also can be selected to be connected with heater, increases memory and the elasticity of seal wire like this by heat distortion further, to adapt to the needs (as blood vessel turns round) getting involved complicated approach bloody path.
Seal wire end is provided with a dismountable rotary handle 3, and this rotary handle of used time and seal wire end on are integrated, and the used time detachablely not to preserve down respectively.The function of this rotary handle is, when seal wire inserts after blood vessel, coordinates the graduation mark of duct inlet periphery, can the radial angle of precise vernier adjustment seal wire when being convenient to seal wire intravasation stenosis, and the display seal wire anglec of rotation directly perceived, shorten the interventional therapy time.
With reference to figure 2, penetrate on the seal wire in conduit and be provided with a protruding node 10 at interval of 20cm, be equipped with one between each node and stop bolt 8, stop that the rear end of bolt 8 is provided with expandable three-jaw support 9.This three-jaw support 9 is made up of three sprig bars, and when they open, between three sprig bar radial directions, angle is 120 ° (Fig. 2 b).Three-jaw support constituent material is the TiNi alloy similar with seal wire, and time its cold conditions (room temperature), three sprig bars are close to and are stopped bolt outer wall with guidewire shaft to parallel, make seal wire penetrate in conduit smoothly.After seal wire and conduit enter arteries, under the heat effect of body temperature (37 DEG C), the temperature distortion of three sprig bars, its front free end opens, until touch pipe inner wall, at this moment, due to the agnail effect of three-jaw support, stop that bolt is forward fixed in the catheter, can not move ahead, seal wire is by node and stop bolt 8, can only a bit of distance h of fore-aft travel (h < 20cm), can ensure like this seal wire when moving ahead and conduit go together.When seal wire needs to retreat, due to the suitable thorn effect of three-jaw support, stop that bolt in the catheter can not by reverse fixing, therefore seal wire all can be exited separately by node and the stop bolt 8 that is separated with conduit, thus when can ensure seal wire intravasation, there is higher spike and motility.
Claims (5)
1. the intubate got involved based on trans-radial to renal artery and an apparatus for deivation, comprise a length and be greater than the conduit of 1.2m, length slightly larger than the seal wire of conduit, rear end of conduit is provided with a threeway and is communicated with medicine arm, duct inlet respectively; It is characterized in that, described seal wire is a kind of metal memory-type nitinol alloy wire, and it penetrates conduit from duct inlet and passes to conduit outlet, and seal wire head is provided with the semi-round ball with seal wire equal diameters; The first-class node being interval with multiple projection of the described seal wire penetrated in conduit, be equipped with one between each node and stop bolt, stop that the rear end of bolt is provided with and form three-jaw support by three sprig bars, this three-jaw support constituent material is Nitinol, during room temperature, three sprig bars are close to and are stopped bolt outer wall with guidewire shaft to parallel, make seal wire penetrate in conduit smoothly; When after seal wire and conduit intravasation, under the heat effect of body temperature, the temperature distortion of three sprig bars, its front free end opens, until touch pipe inner wall, at this moment, due to the agnail effect of three-jaw support, stop that bolt is forward fixed in the catheter, can not move ahead, seal wire is by node and stop bolt, fore-aft travel a bit of distance h, h can only be less than internodal; Due to suitable the thorn effect of three-jaw support, stop that bolt in the catheter can not by reverse fixing, when seal wire needs retrogressing, can all be exited separately by node and the stop bolt that is separated with conduit.
2. the intubate got involved based on trans-radial to renal artery as claimed in claim 1 and apparatus for deivation, it is characterized in that, described seal wire end is provided with a dismountable rotary handle, and the periphery of duct inlet is provided with 360 degree of graduation marks.
3. the intubate got involved based on trans-radial to renal artery as claimed in claim 1 and apparatus for deivation, it is characterized in that, described internodal is 20cm.
4. the intubate got involved based on trans-radial to renal artery as claimed in claim 1 and apparatus for deivation, it is characterized in that, described seal wire passes the part about 15cm of conduit outlet.
5. the intubate got involved based on trans-radial to renal artery as claimed in claim 1 and apparatus for deivation, it is characterized in that, described seal wire end is connected with heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151895.3A CN104771824B (en) | 2015-04-01 | 2015-04-01 | Intubation and apparatus for deivation based on trans-radial to arteria renalis intervention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510151895.3A CN104771824B (en) | 2015-04-01 | 2015-04-01 | Intubation and apparatus for deivation based on trans-radial to arteria renalis intervention |
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| Publication Number | Publication Date |
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| CN104771824A true CN104771824A (en) | 2015-07-15 |
| CN104771824B CN104771824B (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510151895.3A Expired - Fee Related CN104771824B (en) | 2015-04-01 | 2015-04-01 | Intubation and apparatus for deivation based on trans-radial to arteria renalis intervention |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107753102A (en) * | 2017-11-23 | 2018-03-06 | 王凯 | A kind of guide wire insertion device of neurosurgery trigeminal neuralgia PCI |
| CN109820519A (en) * | 2019-03-11 | 2019-05-31 | 浙江大学 | Adrenal venous sampling conduit tube component |
Citations (8)
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|---|---|---|---|---|
| US20030069522A1 (en) * | 1995-12-07 | 2003-04-10 | Jacobsen Stephen J. | Slotted medical device |
| US20040215109A1 (en) * | 2003-04-23 | 2004-10-28 | Pingleton Edward D. | Helical guidewire |
| CN2824973Y (en) * | 2005-04-22 | 2006-10-11 | 董永华 | Medical guide wire |
| CN101687087A (en) * | 2007-04-16 | 2010-03-31 | C.R.巴德有限公司 | Guidewire-assisted catheter placement system |
| CN102145202A (en) * | 2010-02-05 | 2011-08-10 | 微创医疗器械(上海)有限公司 | Medical guide wire |
| CN103991210A (en) * | 2013-02-19 | 2014-08-20 | 上海微创医疗器械（集团）有限公司 | Method for formation of spiral layer inside catheter |
| US20140330358A1 (en) * | 2002-02-28 | 2014-11-06 | Bay Street Medical, Inc. | Guidewire loaded stent for delivery through a catheter |
| CN204699228U (en) * | 2015-04-01 | 2015-10-14 | 西安医学院第二附属医院 | The intubate got involved based on trans-radial to renal artery and apparatus for deivation |
-
2015
- 2015-04-01 CN CN201510151895.3A patent/CN104771824B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030069522A1 (en) * | 1995-12-07 | 2003-04-10 | Jacobsen Stephen J. | Slotted medical device |
| US20140330358A1 (en) * | 2002-02-28 | 2014-11-06 | Bay Street Medical, Inc. | Guidewire loaded stent for delivery through a catheter |
| US20040215109A1 (en) * | 2003-04-23 | 2004-10-28 | Pingleton Edward D. | Helical guidewire |
| CN2824973Y (en) * | 2005-04-22 | 2006-10-11 | 董永华 | Medical guide wire |
| CN101687087A (en) * | 2007-04-16 | 2010-03-31 | C.R.巴德有限公司 | Guidewire-assisted catheter placement system |
| CN102145202A (en) * | 2010-02-05 | 2011-08-10 | 微创医疗器械(上海)有限公司 | Medical guide wire |
| CN103991210A (en) * | 2013-02-19 | 2014-08-20 | 上海微创医疗器械（集团）有限公司 | Method for formation of spiral layer inside catheter |
| CN204699228U (en) * | 2015-04-01 | 2015-10-14 | 西安医学院第二附属医院 | The intubate got involved based on trans-radial to renal artery and apparatus for deivation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107753102A (en) * | 2017-11-23 | 2018-03-06 | 王凯 | A kind of guide wire insertion device of neurosurgery trigeminal neuralgia PCI |
| CN107753102B (en) * | 2017-11-23 | 2020-04-10 | 王凯 | Guide wire insertion device for trigeminal interventional therapy for neurosurgery |
| CN109820519A (en) * | 2019-03-11 | 2019-05-31 | 浙江大学 | Adrenal venous sampling conduit tube component |
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| Publication number | Publication date |
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| CN104771824B (en) | 2017-08-04 |
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Granted publication date: 20170804 Termination date: 20180401 |