CN102247230A - Conveyor of self-expanding stents - Google Patents
Conveyor of self-expanding stents Download PDFInfo
- Publication number
- CN102247230A CN102247230A CN2011101718097A CN201110171809A CN102247230A CN 102247230 A CN102247230 A CN 102247230A CN 2011101718097 A CN2011101718097 A CN 2011101718097A CN 201110171809 A CN201110171809 A CN 201110171809A CN 102247230 A CN102247230 A CN 102247230A
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- steel wire
- hole
- self
- carrier
- interior pipe
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Abstract
The invention discloses a conveyor of self-expanding stents. The conveyor comprises an inner tube arranged between a conveyor seeker and an inner core push tube connector and a released steel wire coaxially arranged together with the inner tube. The conveyor is characterized in that the released steel wire is arranged outside the inner tube; a seton block is arranged on the inner tube close to the connection end of the seeker; after bypassing the released steel wire, a stent binding line A and a stent binding line B respectively run through a hole A and a hole B which are arranged on the seton block; a line separating boss is arranged on the surface of the seton block; the released steel wire is clamped between line separating heads; and the hole A and the hole B are respectively arranged at the two sides of the line separating boss. The conveyor has the following advantages: errors caused by intersecting or intertwining of the binding lines of the stents are generally stopped; and at the same time, the space for the compressed stents is correspondingly enlarged, thus the release resistance of the stents is obviously reduced and the conveyor can be applicable to any self-expanding stent.
Description
Technical field
The present invention relates to a kind of medical bracket conveyer, belong to technical field of medical instruments.
Background technology
Medical support is widely used, is mainly used to strut narrow positions, stifled fistula or topical etc., and purpose is to make tract unobstructed.
Medical support is divided into self-inflated and expanding two classes substantially, need carry with carrier during the support implant into body.Self-expandable stent is transported to the delivery mode after the appointed part, is mostly to push away support by afterbody from support, and the trocar sheath of support recession simultaneously, and remove the constraint of trocar sheath to support, support is swollen opening automatically, withdraws from carrier.This carrier is just unavailable for sectional overlay film self-expandable stent, reason is that the film between adjacent two sections of the stagewise support is soft, in the support dispose procedure, push away from the afterbody of support, film can wrinkle to together, clog the space at support place,, thereby this support is not discharged as the relative motion between " skin of stopping " " checking " support and the outer tube.The patent No. is 200520070630.2 patent of invention, a kind of novel carrier is disclosed, can be widely applicable for self-expandable stent, but this support is because the interior pipe of carrier is double lumen tube (one of them chamber is used for placing the release steel wire), therefore, the space of structurally leaving the compression after-poppet for is smaller, unlocking resistance is big, the conveying of large scale overlay film frame is just more difficult, also there is another major hidden danger in this carrier: intersect if tie up two lines of support, support can't discharge, and cause the operative failure of stent endoprosthesis.These problems allow the doctor have event to avoid to the use of this carrier, and are restricting the use of sectional overlay film self-expandable stent and this carrier.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of carrier of novel self-expandable stent, and is big or cause that because of bounding wire intersects support can't discharge and the problem of carrier versatility difference to solve existing carrier unlocking resistance.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of carrier of self-expandable stent, comprise the interior pipe that is arranged between carrier target seeker and the inner core ejector sleeve connector, with release steel wire of the coaxial setting of interior pipe etc., pipe was outside in described release steel wire was arranged at, be provided with the hanging wire piece near on the interior pipe of target seeker link, support bounding wire A, support bounding wire B pass the set hole A of hanging wire piece, hole B respectively after walking around and discharging steel wire.
The further improvement project of the present invention is, is provided with the separated time boss at hanging wire piece upper surface, and described separated time boss will discharge in the middle of steel wire is sandwiched in, and described hole A, hole B are arranged at separated time boss both sides respectively, and described separated time boss is higher than and discharges plane on the steel wire.
The present invention further improvement project is that the hole A on the hanging wire piece, hole B are provided with perpendicular to hanging wire piece both side surface, simultaneously perpendicular to discharging the steel wire setting.
Pipe is provided with the hanging wire piece in described, is that the hanging wire piece is provided with connecting hole, and it is fixedly connected that interior pipe passes described connecting hole.
The present invention further improvement project is, discharges steel wire, interior pipe is provided with fixing card, discharges steel wire, interior pipe passes the set passage of fixing card respectively.
Described passage is that the release steel wire of one end setting passes the hole, the interior pipe clamp groove that the other end is provided with.
The present invention further improvement project is that interior pipe is a stainless steel tube.
The present invention compared with prior art has following obvious advantage:
One, the present invention is owing to being provided with the hanging wire piece for the support bounding wire, by hole set on the hanging wire piece, separated time boss two bounding wires are separated, make bounding wire can not intersect or be wound in together, stop the support bounding wire substantially because of the phenomenon of intersecting or winding makes mistakes.
Two, the present invention changes interior pipe the design of into single chamber by the design of the two-chamber of prior art, replace the plastics double lumen tube with the capillary stainless steel tube, to discharge steel wire simultaneously and be arranged at interior pipe outside, therefore, dwindled the external diameter (promptly having dwindled interior pipe cross-sectional area) of interior pipe, the corresponding increase left the space of compressing after-poppet for, thereby the unlocking resistance of support is obviously diminished, and goes for the application of any self-expandable stent.
To sum up, the present invention is safe in utilization, and is strong with the self-expandable stent suitability, can effectively eliminate the worry in doctor's use, thereby be patient's traffic better, removes patient's suffering of illness.
Description of drawings
Fig. 1 is a sketch map of the present invention;
Fig. 2 is arranged at the hanging wire piece schematic perspective view on the pipe in the target seeker end among Fig. 1;
Fig. 3 is Figure 1A-A cross-sectional schematic;
Fig. 4 is Figure 1B-B cross-sectional schematic;
Fig. 5 is outer tube handle and outer tube cross-sectional schematic.
Sequence number among the figure is: the 1st, and target seeker; The 2nd, support bounding wire A; The 3rd, support bounding wire B; The 4th, the hanging wire piece; The 5th, interior pipe; The 6th, discharge bail wire; The 7th, discharge steel wire; The 8th, connector; The 9th, the inner core ejector sleeve; The 10th, the hands handle; The 11st, discharge the steel wire latch; The 12nd, hole A; The 13rd, hole B; The 14th, the separated time boss; The 15th, interior pipe clamp groove; The 16th, outer tube hands handle; The 17th, outer tube.
Specific embodiment
As shown in Figure 1, the present invention includes the interior pipe 5 that is arranged between carrier target seeker 1 and the inner core ejector sleeve connector 8, with the release steel wire 7 of interior pipe 5 coaxial settings.As shown in Figure 1, 2, pipe 5 outsides being provided with hanging wire piece 4 near on the interior pipe 5 of target seeker 1 link, were provided with two branch the end of a thread 14 at hanging wire piece upper surface in described release steel wire 7 was arranged at, and divided the end of a thread 14 tops to be higher than and discharged plane on the steel wire.Still as shown in Figure 1, 2, described minute the end of a thread will discharge steel wire and be sandwiched in middle, in minute the end of a thread both sides porose A12, hole B13 are set, after support bounding wire A2, support bounding wire B3 walk around and discharge steel wire, pass hang down behind described hole A12, the hole B13 (two end points that are used for lying in respectively corresponding mouthful of end of support) respectively.As shown in Figure 1, 2, two bounding wires of support " are taken their own roads ", can not intersect, and guarantee that support can safe release.
As shown in Figure 3, in the present embodiment, hanging wire piece 4 transverse section are rectangular, and the approximate mid-section position of hanging wire piece rectangular cross section is provided with connecting hole, and interior pipe 5 passes described connecting hole and connects.As shown in Figure 1, 2, the hole A12 on the hanging wire piece 4, hole B13 are provided with perpendicular to discharging steel wire 7 simultaneously perpendicular to the 4 both side surface settings of hanging wire piece.
Still as shown in Figure 1, release steel wire 7, interior pipe 5 are provided with fixing card 6.As shown in Figure 4, fix card 6 one ends and be provided with the hole of passing that discharges steel wire 7, pipe clamp groove 15(bottom land was an arc surface in the other end was provided with, with interior pipe periphery coupling), described interior pipe clamp groove 15 is provided with outer spread introducing port (pipe 5 is installed in being convenient to).
In the present embodiment, interior pipe is selected stainless steel tube for use, and external diameter of pipe is 1.6mm.Because stainless steel tube has higher intensity, guaranteeing that the inner chamber caliber size can satisfy under the operation technique condition, it is thick to dwindle inner tubal wall as much as possible, and the pipe occupation space reduces the support unlocking resistance in can dwindling to greatest extent.
Operation before using, as shown in Figure 1, with support bounding wire A2 and support bounding wire B3 respectively from discharging on the steel wire 7 around once, their the end of a thread simultaneously respectively from the hole of hanging wire piece 4 through the opposite, on interior bar assembly, overlap upper bracket then, allow the end opening of support near hanging wire piece 4, pass the turning point (diagram is not provided) of a metallic framework of support end opening with support bounding wire A2, tighten up support bounding wire A2 and knotting, operation support bounding wire B3 uses the same method.Then the target seeker 1 with interior bar assembly inserts the outer tube assembly from the back of outer tube handle 16, till outer tube 17 mouth of pipe places arrive the stage casing of target seeker 1 cylindrical section.
During use, support is transported to the specified position of patient, recession outer tube assembly, remove the outer table constraint of support, support is swollen to be opened, then, and the release steel wire latch 11 in pulling out on the bar assembly, drive and discharge steel wire 7 recession, make support bounding wire A and support bounding wire B from discharging slippage on the steel wire 7, from the hole of hanging wire piece 4, skid off then that the end opening of support is swollen naturally to be opened, at this moment, support and interior bar assembly are thrown off fully.Drop back the simultaneously interior bar assembly and the outer tube assembly of carrier are promptly finished support and are placed.
Claims (9)
1. the carrier of a self-expandable stent, comprise the interior pipe that is arranged between carrier target seeker and the inner core ejector sleeve connector, release steel wire with the coaxial setting of interior pipe, it is characterized in that: pipe was outside in described release steel wire was arranged at, interior pipe is provided with the hanging wire piece, support bounding wire A, support bounding wire B pass the set hole A of hanging wire piece, hole B respectively after walking around and discharging steel wire.
2. the carrier of a kind of self-expandable stent as claimed in claim 1 is characterized in that: be provided with the separated time boss on hanging wire piece surface, described separated time boss will discharge in the middle of steel wire is sandwiched in, and described hole A, hole B are arranged at separated time boss both sides respectively.
3. the carrier of a kind of self-expandable stent as claimed in claim 2 is characterized in that: described separated time boss is higher than and discharges plane on the steel wire.
4. the carrier of a kind of self-expandable stent as claimed in claim 1 or 2 is characterized in that: the hole A on the hanging wire piece, hole B are perpendicular to discharging the steel wire setting.
5. the carrier of a kind of self-expandable stent as claimed in claim 1 or 2 is characterized in that: pipe is provided with the hanging wire piece in described, is that the hanging wire piece is provided with connecting hole, and it is fixedly connected that interior pipe passes described connecting hole.
6. the carrier of a kind of self-expandable stent as claimed in claim 1 is characterized in that: discharge steel wire, interior pipe is provided with fixing card, discharge steel wire, interior pipe passes the set passage of fixing card respectively.
7. the carrier of a kind of self-expandable stent as claimed in claim 6 is characterized in that: the set passage of fixing card is that the release steel wire of one end setting passes the hole, the interior pipe clamp groove that the other end is provided with.
8. the carrier of a kind of self-expandable stent as claimed in claim 7 is characterized in that: the pipe clamp groove is provided with outer spread introducing port in described.
9. as the carrier of claim 1 or 6 or 7 described a kind of self-expandable stents, it is characterized in that: interior pipe is a stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101718097A CN102247230B (en) | 2011-06-24 | 2011-06-24 | Conveyor of self-expanding stents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101718097A CN102247230B (en) | 2011-06-24 | 2011-06-24 | Conveyor of self-expanding stents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102247230A true CN102247230A (en) | 2011-11-23 |
| CN102247230B CN102247230B (en) | 2013-08-14 |
Family
ID=44975047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101718097A Active CN102247230B (en) | 2011-06-24 | 2011-06-24 | Conveyor of self-expanding stents |
Country Status (1)
| Country | Link |
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| CN (1) | CN102247230B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088424A1 (en) * | 2005-09-21 | 2007-04-19 | William A. Cook Australia Pty Ltd. | Endoluminal delivery assembly |
| CN101045023A (en) * | 2006-03-30 | 2007-10-03 | 温宁 | Wire intaking compacting mechanism for self-expanding stent |
| CN201840554U (en) * | 2010-07-28 | 2011-05-25 | 黄连军 | Blood vessel scaffold conveying device |
| CN202136448U (en) * | 2011-06-24 | 2012-02-08 | 淮安市西格玛医用实业有限公司 | Conveyor for self-expandable support |
-
2011
- 2011-06-24 CN CN2011101718097A patent/CN102247230B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088424A1 (en) * | 2005-09-21 | 2007-04-19 | William A. Cook Australia Pty Ltd. | Endoluminal delivery assembly |
| CN101045023A (en) * | 2006-03-30 | 2007-10-03 | 温宁 | Wire intaking compacting mechanism for self-expanding stent |
| CN201840554U (en) * | 2010-07-28 | 2011-05-25 | 黄连军 | Blood vessel scaffold conveying device |
| CN202136448U (en) * | 2011-06-24 | 2012-02-08 | 淮安市西格玛医用实业有限公司 | Conveyor for self-expandable support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102247230B (en) | 2013-08-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Bubing Inventor after: Sheng Jianqiu Inventor after: Zhao Zhenya Inventor before: Zhu Bubing Inventor before: Zhao Zhenya |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHU BUBING ZHAO ZHENYA TO: ZHU BUBING SHENG JIANQIU ZHAO ZHENYA |