CN109223268A - One kind having branch stent conveying device - Google Patents
One kind having branch stent conveying device Download PDFInfo
- Publication number
- CN109223268A CN109223268A CN201811217109.5A CN201811217109A CN109223268A CN 109223268 A CN109223268 A CN 109223268A CN 201811217109 A CN201811217109 A CN 201811217109A CN 109223268 A CN109223268 A CN 109223268A
- Authority
- CN
- China
- Prior art keywords
- branch
- sheath
- bracket
- main branch
- distal end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/97—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve the outer sleeve being splittable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
Abstract
The present invention relates to one kind to have branch stent conveying device, belongs to the field of medical instrument technology.The branch stent conveying device of the present invention that has includes the bracket for having branch, the main branch sheath in distal end, the main branch sheath in proximal end, branch identical with numbers of branches sheath；The distal end of the main branch of bracket is strapped in the main branch sheath in distal end by the main branch sheath in distal end；The branch of bracket is strapped in branch's sheath by branch's sheath；The proximal end of the main branch of bracket is strapped in the main branch sheath in proximal end by the main branch sheath in proximal end.It can be fettered using sheath based on the stent conveying device of the present invention with branch and discharge bracket, solve the problems, such as that the bracket with branch is difficult to discharge.Compared with prior art in such a way that harness bundlees bracket, sheath pipe surface is smooth, it is not easy to damage blood vessel, and sheath constraint bracket is safer, bracket is not easy to fall off from sheath in bracket storage, transportational process.
Description
Technical field
The present invention relates to one kind to have branch stent conveying device, belongs to the field of medical instrument technology.
Background technique
Currently, dissection of aorta and tumor are one of cardiovascular diseases of most serious.With interventional technique progress with
It is widely applied, overlay film frame application is further extensive, and traditional overlay film frame is straight tube shape, and this bracket is pressed when not working
Contracting proximally (patient end) detaches sheath after being implanted target blood in straight-cylindrical sheath, and bracket expands and will
Lesion support.But the area coverage of dissection of aorta and tumor is especially big, and intra-arterial distributed many branch vessels, partial picture
Under, if having blocked important branch vessel using straight-cylindrical overlay film frame, it is possible that organ blood supply insufficiency is even
The case where death.
It is this to solve the problems, such as, occur single branch stent in recent years.Single branch stent is increased on straight cylindrical stent
One lateral branch's small rack, theoretically solves the problems, such as that branch vessel is blocked.But in fact, by this single point
It is that how to discharge is another problem that branch bracket, which is delivered to lesion vessels by it,.Cylindrical stent retracts sheath proximally to release
The method for putting bracket is infeasible on single branch stent, because that sheath can be stopped proximally to retract is dynamic for the branch of single branch stent
Make.
Currently, single branch stent of most clinical uses is all that bracket is sent vascular opening with hand by patient in clinic
Enter, operate and its cumbersome, and failure chance is very high.Chinese invention patent 201110085820.1 disclose it is a kind of with harness come
The method of constraint and release rack body, but the situation in arteries is complicated, and harness can be by bracket tightly after discharging bracket
It is supported between bracket and blood vessel, the movement for drawing back harness probably damages blood vessel, and harness is easy to catch on bracket beam column
And lead to operative failure.
Summary of the invention
The present invention passes through the release for controlling main branch and branch respectively, solves the above problem.
The present invention provides one kind to have branch stent conveying device, and the branch stent conveying device that has includes having
The bracket of branch, sheath；The sheath includes the main branch sheath in distal end, the main branch sheath in proximal end, branch identical with numbers of branches sheath
Pipe；The distal end of the main branch of bracket is strapped in the main branch sheath in distal end by the main branch sheath in distal end, when the main branch sheath in the distal end from
When the distal end of the main branch of bracket is removed, the distal end of the main branch of bracket unmuzzles and is released；Branch's sheath is by bracket
Branch is strapped in branch's sheath, and when branch's sheath is removed from the branch of bracket, the branch of the bracket unmuzzles
And it is released；The proximal end of the main branch of bracket is strapped in the main branch sheath in proximal end by the main branch sheath in proximal end, when the main branch in the proximal end
When sheath is removed from the proximal end of the main branch of bracket, the proximal end of the main branch of bracket unmuzzles and is released.
The present invention be preferably the sheath material be polyether block amide, polyamide, polytetrafluoroethylene (PTFE), polyether-ether-ketone,
At least one of polyurethane.
The present invention is preferably that stainless steel wire, titanium alloy wire or polyether-ether-ketone silk are equipped in the tube wall of the sheath.
The present invention is preferably that the distal end of the main branch sheath in the distal end is tip.
The present invention is preferably that the distal end of branch's sheath is tip.
The present invention is preferably that the sheath is connected with control piece, removes sheath by pushing or pulling on control piece.
The present invention is preferably that the material of the control piece is stainless steel, titanium, titanium alloy, polyether-ether-ketone or macromolecule and metal
Mixture.
The present invention is preferably that the shape of the control piece is pipe or silk.
The present invention is preferably that the sheath is connected with 1-5 control piece.
The invention has the following beneficial effects:
It can be fettered using sheath based on the stent conveying device of the present invention with branch and discharge bracket, solved
Bracket with branch is difficult to the problem discharged.Compared with prior art in such a way that harness bundlees bracket, sheath pipe surface is smooth,
Easy damaged blood vessel is not allowed, and sheath constraint bracket is safer, bracket is not easy from sheath in bracket storage, transportational process
In fall off.
Detailed description of the invention
2 width of attached drawing of the present invention,
Fig. 1 is the structural schematic diagram not discharged described in embodiment 1 with branch stent conveyor support；
Fig. 2 is described in embodiment 1 with the structural schematic diagram after the release of branch stent conveyor support；
Wherein, 11, the distal end of the main branch of bracket, 12, the branch of bracket, 13, the proximal end of the main branch of bracket, 21, the main branch sheath in distal end
Pipe, 22, branch's sheath, 23, the main branch sheath in proximal end, 31, the main branch sheath control piece in distal end, 32, branch's sheath control piece, 33, close
Hold main branch sheath control piece.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Embodiment 1
One kind have branch stent conveying device, it is described with branch stent conveying device include with branch bracket,
Distal end is the main branch sheath 21 in distal end, the branch's sheath 22 for being distally tip, the main branch sheath 23 in proximal end at tip；
The main branch sheath 21 in the distal end, the main branch sheath 23 of branch's sheath 22 and proximal end material be polyurethane, it is described remote
It holds and is equipped with nitinol alloy wire in the tube wall of main branch sheath 21, the main branch sheath 23 of branch's sheath 22 and proximal end；
The distal end 11 of the main branch of bracket is strapped in the main branch sheath 21 in distal end by the main branch sheath 21 in distal end, and the distal end
The distal end of main branch sheath 21 is connected with the main branch sheath control piece 31 in 1 distal end, when the promotion main branch sheath control piece 31 in distal end
When, the main branch sheath 21 in distal end is removed from the distal end 11 of the main branch of bracket, and the distal end 11 of the main branch of bracket unmuzzles and quilt
Release；
The branch 12 of bracket is strapped in branch's sheath 22 by branch's sheath 22, and the distal end of branch's sheath 22
It is connected with 1 branch's sheath control piece 32, when pushing branch's sheath control piece 32, branch's sheath 22 is from bracket
Branch 12 removes, and the branch 12 of the bracket unmuzzles and is released；
The proximal end 13 of the main branch of bracket is strapped in the main branch sheath 23 in proximal end by the main branch sheath 23 in proximal end, and the proximal end
The proximal end of main branch sheath 23 is connected with the main branch sheath control piece 33 in 1 proximal end, when the pulling main branch sheath control piece 33 in proximal end
When, the main branch sheath 23 in proximal end is removed from the proximal end 13 of the main branch of bracket, and the proximal end 13 of the main branch of bracket unmuzzles and quilt
Release；
The main branch sheath control piece 31 in the distal end, the main branch sheath control piece 33 of branch's sheath control piece 32 and proximal end are nickel
Titanium alloy tube.
Embodiment 2
The application method of branch stent conveying device, the application method are had described in embodiment 1 are as follows:
When bracket does not discharge, passes through guiding wire in the blood vessels with branch stent conveying device by described and run to lesion
Position；
By the way that the main branch sheath control piece 31 in the distal end, the main branch sheath control of branch's sheath control piece 32 and proximal end is manually operated
Product 33 respectively removes the main branch sheath 21 in distal end, the main branch sheath 23 of branch's sheath 22 and proximal end, makes bracket exposure from sheath
In blood vessel, bracket expands naturally under unbound state and props up blood vessel；
After bracket release, respectively will by the main branch sheath control piece 31 in the distal end of pulling back and branch's sheath control piece 32
Distally main branch sheath 21 and branch's sheath 22 are by being pulled through the proximal end 13 of the main branch of bracket in the stent cavity after expansion and withdrawing.
Claims (9)
1. a kind of have branch stent conveying device, it is characterised in that: described to divide with branch stent conveying device including having
The bracket of branch, sheath；
The sheath includes the main branch sheath in distal end, the main branch sheath in proximal end, branch identical with numbers of branches sheath；
The distal end of the main branch of bracket is strapped in the main branch sheath in distal end by the main branch sheath in distal end, when the main branch sheath in the distal end from
When the distal end of the main branch of bracket is removed, the distal end of the main branch of bracket unmuzzles and is released；
The branch of bracket is strapped in branch's sheath by branch's sheath, when branch's sheath is removed from the branch of bracket
When, the branch of the bracket unmuzzles and is released；
The proximal end of the main branch of bracket is strapped in the main branch sheath in proximal end by the main branch sheath in proximal end, when the main branch sheath in the proximal end from
When the proximal end of the main branch of bracket is removed, the proximal end of the main branch of bracket unmuzzles and is released.
2. according to claim 1 have branch stent conveying device, it is characterised in that: the material of the sheath is polyethers
At least one of block amides, polyamide, polytetrafluoroethylene (PTFE), polyether-ether-ketone, polyurethane.
3. according to claim 2 have branch stent conveying device, it is characterised in that: be equipped in the tube wall of the sheath
Stainless steel wire, titanium alloy wire or polyether-ether-ketone silk.
4. it is according to claim 3 have branch stent conveying device, it is characterised in that: the main branch sheath in distal end it is remote
End is tip.
5. according to claim 4 have branch stent conveying device, it is characterised in that: the distal end of branch's sheath is
Tip.
6. according to claim 5 have branch stent conveying device, it is characterised in that: the sheath is connected with control
Part removes sheath by pushing or pulling on control piece.
7. according to claim 6 have branch stent conveying device, it is characterised in that: the material of the control piece is not
Become rusty the mixture of steel, titanium, titanium alloy, polyether-ether-ketone or macromolecule and metal.
8. according to claim 7 have branch stent conveying device, it is characterised in that: the shape of the control piece is pipe
Or silk.
9. according to claim 8 have branch stent conveying device, it is characterised in that: a sheath is connected with 1-
5 control pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217109.5A CN109223268B (en) | 2018-10-18 | 2018-10-18 | Conveying device with branch supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217109.5A CN109223268B (en) | 2018-10-18 | 2018-10-18 | Conveying device with branch supports |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109223268A true CN109223268A (en) | 2019-01-18 |
| CN109223268B CN109223268B (en) | 2021-02-12 |
Family
ID=65053636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811217109.5A Active CN109223268B (en) | 2018-10-18 | 2018-10-18 | Conveying device with branch supports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109223268B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057771A (en) * | 2021-04-30 | 2021-07-02 | 齐聚医疗科技(上海)有限公司 | Stent intervention assembly, stent intervention device, stent intervention method, and storage medium |
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|---|---|---|---|---|
| CN202128575U (en) * | 2011-05-23 | 2012-02-01 | 先健科技(深圳)有限公司 | Support conveying device during operation |
| CN103385774A (en) * | 2012-05-07 | 2013-11-13 | 李卫校 | Pusher for integral great vessel branch stent |
| CN103598928A (en) * | 2013-10-25 | 2014-02-26 | 徐花 | Branch type tectorial membrane stent and delivery system thereof |
| CN105943210A (en) * | 2015-12-23 | 2016-09-21 | 微创心脉医疗科技（上海）有限公司 | Intervention apparatus sheath tube and manufacturing method thereof |
| CN205612594U (en) * | 2016-03-15 | 2016-10-05 | 北京奇伦天佑创业投资有限公司 | Take ramose tectorial membrane support and implantation system thereof |
| CN205698829U (en) * | 2016-03-09 | 2016-11-23 | 宁波琳盛高分子材料有限公司 | Novel sheath |
| CN205924246U (en) * | 2016-03-21 | 2017-02-08 | 中国医科大学附属第一医院 | Release of aortic aneurysm blood vessel support |
| US20170348126A1 (en) * | 2016-06-01 | 2017-12-07 | Cook Medical Technologies Llc | Medical device introducer assembly particularly for branched medical devices |
| CN107802387A (en) * | 2017-11-08 | 2018-03-16 | 有研医疗器械（北京）有限公司 | A kind of art medium-height trestle induction system and its application method |
| CN107913124A (en) * | 2016-10-10 | 2018-04-17 | 宁波昆特医疗设备有限公司 | A kind of interventional medical device conveying and release device |
-
2018
- 2018-10-18 CN CN201811217109.5A patent/CN109223268B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202128575U (en) * | 2011-05-23 | 2012-02-01 | 先健科技(深圳)有限公司 | Support conveying device during operation |
| CN103385774A (en) * | 2012-05-07 | 2013-11-13 | 李卫校 | Pusher for integral great vessel branch stent |
| CN103598928A (en) * | 2013-10-25 | 2014-02-26 | 徐花 | Branch type tectorial membrane stent and delivery system thereof |
| CN105943210A (en) * | 2015-12-23 | 2016-09-21 | 微创心脉医疗科技（上海）有限公司 | Intervention apparatus sheath tube and manufacturing method thereof |
| CN205698829U (en) * | 2016-03-09 | 2016-11-23 | 宁波琳盛高分子材料有限公司 | Novel sheath |
| CN205612594U (en) * | 2016-03-15 | 2016-10-05 | 北京奇伦天佑创业投资有限公司 | Take ramose tectorial membrane support and implantation system thereof |
| CN205924246U (en) * | 2016-03-21 | 2017-02-08 | 中国医科大学附属第一医院 | Release of aortic aneurysm blood vessel support |
| US20170348126A1 (en) * | 2016-06-01 | 2017-12-07 | Cook Medical Technologies Llc | Medical device introducer assembly particularly for branched medical devices |
| CN107913124A (en) * | 2016-10-10 | 2018-04-17 | 宁波昆特医疗设备有限公司 | A kind of interventional medical device conveying and release device |
| CN107802387A (en) * | 2017-11-08 | 2018-03-16 | 有研医疗器械（北京）有限公司 | A kind of art medium-height trestle induction system and its application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057771A (en) * | 2021-04-30 | 2021-07-02 | 齐聚医疗科技(上海)有限公司 | Stent intervention assembly, stent intervention device, stent intervention method, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109223268B (en) | 2021-02-12 |
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