CN104840283A - Intravascular stent system with guide wire reserved passage protecting device - Google Patents
Intravascular stent system with guide wire reserved passage protecting device Download PDFInfo
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- CN104840283A CN104840283A CN201510277692.9A CN201510277692A CN104840283A CN 104840283 A CN104840283 A CN 104840283A CN 201510277692 A CN201510277692 A CN 201510277692A CN 104840283 A CN104840283 A CN 104840283A
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- implant
- seal wire
- mounting system
- reserved passageway
- plug
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Abstract
The invention provides an intravascular stent system with a guide wire reserved passage protecting device. The protecting device comprises movable filler and allows the reserved passage of the stent system to be generated conveniently. The protecting system protects the reserved passage from being compressed, bent and deformed during production folding. When a guide wire penetrates the stent system, a balloon and a metal stent cannot be damaged, and guide wire penetration can be completed smoothly.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments being input to human body, specifically a kind of intravascular stent.
Background technology
As everyone knows, cardiovascular disease is one of principal disease threatening human health and life, intravascular stent has been widely applied in the treatment of cardiovascular disease, over the course for the treatment of, in the blood vessel of the implanted human body of intravascular stent, reach treatment and prevention blood vessel narrow, block and the angiopathy such as aneurysm and interlayer.
The intravascular stent major part of current application is placed on sacculus in advance, space is not had between all intravascular stents and sacculus, support balloon center has silk guide passage, the silk guide passage of seal wire by support and balloon system center is convenient in such design, allow support balloon system can arrive blood vessel along seal wire to hit diseased region, then after balloon expandable, support is released in target lesion position.Blood vessel is bifurcated, when two of bifurcated vessels or three branch vessels have pathological changes, when several support will be discharged in the blood vessel of pathological changes or protect branch vessel, need under X-ray machine, operate in the mesh of another seal wire from releasing bracket and pass through and arrive another blood vessel, these operation easier are large, waste time and energy, and Position location accuracy are poor; Or when only having pathological changes at vascular bifurcation opening; support is difficult to cover pathological changes completely; in order to not affect another branch vessel or protection branch vessel of thering is no pathological changes; therefore accurately location is just needed; in current practice, operational approach is under X-ray machine widely; repeatedly shine position with different throwings, accurate operation is located.
Therefore, manufacture a kind of handled easily necessary with the intravascular stent being conducive to accurate locating therapy vascular bifurcation pathological changes and openings in blood vessels pathological changes, a kind of support of reserved silk guide passage is provided in patent CN201320895986.4, but new problem creates again, in this stent procedures of production, how to make this passage? after producing this passage simultaneously, be difficult to keep reserved silk guide passage not compressed, distortion, even bending, and once there is this problem, seal wire is difficult to by the through support of passage; Meanwhile, in application process, because wire guide is very tiny, its head end is very sharp keen, and seal wire is being easy to cause damage to sacculus and metal rack through in this reserved passageway process.
Namely the present invention for above-mentioned technical problem, provides solution.
Summary of the invention
For solving the problem, the invention provides a kind of intravascular stent system with seal wire reserved passageway protector.
This intravascular stent system schema is as follows:
Intravascular stent system comprises sacculus, and conduit and the metal rack be embedded in outside sacculus of balloon center, is characterized in that, be provided with the seal wire reserved passageway protector slidably extracted out between sacculus and outer layer metal support.
Above-mentioned protector, includes the implant be filled in seal wire reserved passageway, and implant to be supported between sacculus and metal rack and to be close to metal rack and sacculus, and implant can be slided and extracted out thus form the passage that seal wire runs through.
Above-mentioned implant and foley's tube radial parallel, its cross section can be and be the shape that any one side and outer layer metal support cambered surface are fitted, as oval, be other polygons of arc on one side, the through mounting system of implant radial direction, makes implant can extract out from any one end.The material of implant can be generally have elastic material, can anti-extrusion deformation and good one's own substance characteristics, also can be the material for hard after molding.In addition, implant can be the implant of homogenous material, also can be the implant of multiple material MULTILAYER COMPOSITE, double-deck or multilayer material can be nested into the structure of concentric tubular, make seal wire when releasing implant, one end of seal wire can stably contact with implant, is unlikely to cause slip and causes piercing through sacculus.This implant radical length can be longer than seal wire reserved passageway, and wherein one or both ends are given prominence to outside seal wire reserved passageway; Can with the accessory structure of the pull-out or release of being convenient to implant, this accessory structure can be thread, also can be other outstanding shapes.Can combine with implant, on the sidewall of the metal rack contacted with implant, have the hole that seal wire can be made to pass, make seal wire can select the direction run through as required.
With above described holes, and implant can coordinate, and can also arrange plug-in unit, plug-in unit is consistent with the shape size in hole, or its cross section is slightly less than the size in hole, and plug-in unit can be filled in or insert in the hole, be convenient to the formation in this hole in process of production, and prevent the distortion in hole; Simultaneously, plug-in unit can coordinate with above-mentioned implant, position corresponding with hole in implant can have groove, plug-in unit can by fill in or after patchhole, fill in or insert in corresponding groove further, the demolition of in use this plug-in unit is convenient in this design, and after demolition, the groove of implant is convenient to the effect of seal wire.This implant also can have passage to be connected with groove simultaneously, is convenient to seal wire and passes through, and then seal wire is drawn out or releases together with implant.
Can there be radial passage above-mentioned implant inside, and passage communicates with groove and hole, and passage can radial through implant, also at one end can have opening.
In addition, the groove of the implant that above-mentioned protector comprises and correspondence thereof, can incessantly arrange one group, can arrange many groups, to use the needs of actual use.
The using method of the mounting system of this band seal wire reserved passageway protector can be as follows:
A. take out all plug-in units, or adopt the scheme without plug-in unit then directly to enter next step;
B. after determining the hole that seal wire needs, seal wire is oblique from hole penetrates in operation, or penetrates from radial one end of implant, and seal wire contacts with implant, generation radial thrust, and implant is released from reserved passageway; Also implant can be drawn out from reserved passageway together with seal wire;
C. operate seal wire to continue continue to withstand implant and continue applied thrust, implant is slowly extracted out by the other end, in process, prevents from withstanding implant one end wire tips and implant departs from, until seal wire runs through reserved passageway under the guiding of implant; Also can only directly implant be released by seal wire applied thrust in previous step.
Compared with prior art, the present invention program has the following advantages:
1, seal wire reserved passageway can be protected, avoid it just to compress before the use, be out of shape even bending, lateral opening hole also can be protected to be out of shape simultaneously;
2, user can be made more easy when handling seal wire penetrating via, and protect sacculus and metal rack not to be damaged by the termination that seal wire is sharp;
3, make the production of support more easy, yield rate is higher.
Accompanying drawing explanation
Fig. 1 is the top view of the intravascular stent system of band seal wire reserved passageway protector;
Fig. 2 is the cross-sectional view of the intravascular stent system of band seal wire reserved passageway protector;
Fig. 3 is the longitudinal section figure of the intravascular stent system of band seal wire reserved passageway protector;
Fig. 3 a is the longitudinal section figure of the intravascular stent system of band seal wire reserved passageway protector variation type;
Fig. 4 is the longitudinal section figure of the operating diagram of the intravascular stent system of band seal wire reserved passageway protector;
Fig. 5 is the longitudinal section figure that seal wire reserved passageway and channel protection device all do not have through intravascular stent system.
Fig. 6 is the longitudinal section figure of the intravascular stent system with plug-in unit;
Fig. 7 and Fig. 8 is the longitudinal section figure of the intravascular stent system works schematic diagram with plug-in unit;
Fig. 9 and Figure 10 is the longitudinal section figure of implant band silk guide passage
In above-mentioned schematic diagram: 1. seal wire reserved passageway mounting system, 2. the sacculus can radially expanded, 3. metal rack, 4. at the conduit at sacculus 2 center, 5. the silk guide passage at conduit 4 center, 6. between support and sacculus, has reserved passageway, 7. be convenient to the hole that seal wire passes through seal wire reserved passageway, 8. implant (dash area), 9. plug-in unit, the groove 10. in implant, 20. by the seal wire of silk guide passage 5,30. by the seal wire of reserved passageway 6, the silk guide passage in the middle of 11. implants, the adnexa of 12. implant ends.
Further illustrate below in conjunction with detailed description of the invention and accompanying drawing thereof.
Detailed description of the invention
Fig. 1, Fig. 2 and Fig. 3 are the top view of the intravascular stent system of band seal wire reserved passageway protector and cross-sectional view and longitudinal section figure respectively.In the seal wire reserved passageway 6 of seal wire reserved passageway implant 8 (in Fig. 1 dash area) between support and sacculus.The protector of an implant 8 as seal wire reserved passageway is placed in reserved passageway 6 between support and sacculus; implant 8 runs through seal wire reserved passageway mounting system 1; the cross section of implant 8 while fit with the curved edge of prototype metal rack 3, another side and sacculus are fitted.This implant 8 helps to form the reserved passageway between support and sacculus in the manufacturing process of support, and protection channel is not by compression or bending, and implant 8 can be extracted out or release seal wire reserved passageway 6 under the effect of external force.In figure, seal wire reserved passageway mounting system 1 is in contraction state, before this sacculus 2 uses, it is in contraction state, the outer cancellous metal rack 3 of nested one deck of sacculus 2, conduit 4 is had to pass through at sacculus 2 center, there is silk guide passage 5 at conduit 4 center, seal wire 20, by wherein, has in the side that metal rack 3 contacts with implant 8 and is convenient to the circular hole 7 that seal wire 30 passes through seal wire reserved passageway 6.Fig. 3 a be Fig. 1,2, the variation type of 3; implant can be longer than seal wire reserved passageway; wherein one or both ends are given prominence to outside seal wire reserved passageway, are convenient to implant like this and are drawn out or release the longitudinal section figure that seal wire reserved passageway 6. Fig. 4 is the operating diagram of the intravascular stent system of band seal wire reserved passageway protector.The protector of an implant 8 as seal wire reserved passageway is placed in reserved passageway 6 between support 3 and sacculus 4.Implant 8 is under the state of sacculus 2 folding shrinking; prop up overfill protection seal wire reserved passageway 6; seal wire 30 passing hole 7 acts on implant 8 and implant 8 is released; also implant 8 can be extracted out under the combined effect of the thrust of seal wire 30 and the pulling force of extraction from seal wire reserved passageway 6 simultaneously; the sharp keen head end of wire guide 30 and wire guide 30 so just can be avoided in the process of passing through seal wire reserved passageway 6 to cause damage to sacculus and metal rack, and seal wire 30 runs through reserved passageway 6 smoothly.Seal wire 20 imports vascular lesion position whole seal wire reserved passageway mounting system 1.
Fig. 5 is the longitudinal section figure that seal wire reserved passageway and channel protection device all do not have through intravascular stent system.As shown in the figure, implant 8 can only be pushed out from one end of mounting system or pull out, and seal wire penetrates from hole 7, acts on implant 8.In use, choose and need the hole 7 passed through, the oblique patchhole 7 of seal wire also acts on implant 8, produces a radial thrust and implant 8 is released silk guide passage 6, or also can coordinate and implant 8 pulled out.
Fig. 6 is the longitudinal section figure of the intravascular stent system with plug-in unit.On the position of seal wire reserved passageway mounting system mesopore 7, implant 8 can have a groove 10 to be combined with plug-in unit 9, and plug-in unit 9 can insert corresponding groove 10 after patchhole 7 further, and be convenient to the making in hole 7, meanwhile, protective hole 7 is not out of shape because of External Force Acting.
Fig. 7 and Fig. 8 is with the longitudinal section figure of the intravascular stent system works schematic diagram of plug-in unit.First plug-in unit 9 is taken out from the hole 7 of correspondence, implant 8 obtains state that can be movable in reserved passageway 6, seal wire 230 oblique cutting act in implant 8 from a hole, implant obtains a radial thrust under the active force of seal wire 30, therefore thrust, implant 8 is pushed out reserved passageway 6 also can extract implant 8 out at the other end, until implant 8 all deviates from reserved passageway 6 together with seal wire 30, seal wire 20 is also through smoothly then.
Fig. 9 and Figure 10 is the longitudinal section figure of the implant of band silk guide passage and head end band adnexa.Seal wire can pass through from the groove 10 of hole 7 and implant and silk guide passage 11, is drawn out seal wire reserved passageway together after through together with the adnexa 12 of implant.Above embodiment is only that the one of this patent is preferred, according to content of the present invention, can also obtain manyly duplicating in the scheme of this patent: such as implant 8 can be any material and any shape as required, and its size can differ.Implant 8 can be drawn out seal wire reserved passageway 6, also can be pushed out seal wire reserved passageway 6.Implant 8 can be released seal wire reserved passageway 6 by seal wire 30, also can be released seal wire reserved passageway 6 by other class seal wire objects.
Claims (11)
1. the intravascular stent system with seal wire reserved passageway protector; comprise sacculus; conduit and the metal rack be embedded in outside sacculus of balloon center; it is characterized in that; between sacculus and outer layer metal support, be provided with seal wire reserved passageway protector, comprise the implant that can move from reserved passageway and extract out or release.
2. mounting system as claimed in claim 1; it is characterized in that, the implant of described protector is filled in and needs in reserved silk guide passage, and implant contacts with outer layer metal support and internal layer sacculus; parallel with centre pipe, radial through or part runs through mounting system.
3. mounting system as claimed in claim 2, it is characterized in that, the cross sectional shape of the implant of described protector can be the shape that any one side and outer layer metal support cambered surface are fitted.
4. mounting system as claimed in claim 2, it is characterized in that, the implant of described protector can be homogenous material, and also can be double-deck or the material formation of multilamellar, double-deck or multilayer material can be nested into the structure of concentric tubular.
5. the mounting system as described in claim 1-4, is characterized in that, the side that described protector contacts with metal rack has some holes facilitating seal wire to pass.
6. mounting system as claimed in claim 5, it is characterized in that, the implant radical length of described protector can be longer than seal wire reserved passageway, and wherein one or both ends are given prominence to outside seal wire reserved passageway.
7. mounting system as claimed in claim 5, it is characterized in that, implant one end of described protector or two ends can with the accessory structures of the pull-out or release of being convenient to implant, and this accessory structure can be thread, also can be other outstanding shapes.
8. mounting system as claimed in claim 5, is characterized in that, can there be radial passage described implant inside, and passage communicates with groove and hole, and passage can radial through implant, also at one end can have opening.
9. mounting system as claimed in claim 5, it is characterized in that, described perforate is provided with removable card, and plug-in unit is consistent with hole shape, and cross-sectional sizes is slightly less than perforate and plug-in unit can be installed in the way to insert.
10. mounting system as claimed in claim 9, it is characterized in that, described implant is provided with the groove coordinated with plug-in unit, and plug-in unit can the mode of plug-in unit can be connected with implant.
11. mounting systems as claimed in claim 10, it is characterized in that, the quantity of the seal wire reserved passageway that described implant can be arranged as required, arranges two or more pieces, and the corresponding perforate corresponding with implant and plug-in unit also can be multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277692.9A CN104840283B (en) | 2015-05-27 | 2015-05-27 | A kind of intravascular stent system with seal wire reserved passageway protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510277692.9A CN104840283B (en) | 2015-05-27 | 2015-05-27 | A kind of intravascular stent system with seal wire reserved passageway protection device |
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| CN104840283A true CN104840283A (en) | 2015-08-19 |
| CN104840283B CN104840283B (en) | 2017-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440822A (en) * | 2017-09-14 | 2017-12-08 | 唐利龙 | A kind of intravascular stent system and application method |
| CN108542552A (en) * | 2018-03-08 | 2018-09-18 | 广西中医药大学第附属医院 | Intravascular stent and its application method |
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| CN103876873A (en) * | 2014-03-31 | 2014-06-25 | 南京微创医学科技有限公司 | More reliable fast exchanging imbedding device |
| CN103948454A (en) * | 2014-04-30 | 2014-07-30 | 四川大学华西医院 | Branch controllable type integrated blood vessel scaffold and implantation device thereof |
| CN203829102U (en) * | 2013-10-09 | 2014-09-17 | 唐利龙 | Support for preformed guide-wire channel |
| CN205073076U (en) * | 2015-05-27 | 2016-03-09 | 唐利龙 | Take seal wire reserve way protection device's vascular mounting system |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0371486A1 (en) * | 1988-12-01 | 1990-06-06 | Advanced Cardiovascular Systems, Inc. | Vascular catheter with releasably secured guidewire |
| EP0611582A2 (en) * | 1993-01-19 | 1994-08-24 | Datascope Investment Corp. | Single-lumen over-the-wire IAB catheter |
| WO1999011321A1 (en) * | 1997-09-02 | 1999-03-11 | Advanced Bionics Corporation | Cochlear electrode with modiolar-hugging system including a flexible positioner |
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| CN101569570A (en) * | 2009-06-15 | 2009-11-04 | 赵林 | Balloon expandable stent with side-hole channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440822A (en) * | 2017-09-14 | 2017-12-08 | 唐利龙 | A kind of intravascular stent system and application method |
| CN108542552A (en) * | 2018-03-08 | 2018-09-18 | 广西中医药大学第附属医院 | Intravascular stent and its application method |
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| CN104840283B (en) | 2017-03-15 |
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