CN2582641Y - Arteria covering membrane supporter - Google Patents

Arteria covering membrane supporter Download PDF

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Publication number
CN2582641Y
CN2582641Y CN 02261692 CN02261692U CN2582641Y CN 2582641 Y CN2582641 Y CN 2582641Y CN 02261692 CN02261692 CN 02261692 CN 02261692 U CN02261692 U CN 02261692U CN 2582641 Y CN2582641 Y CN 2582641Y
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CN
China
Prior art keywords
framework
material layer
covering material
scaffold
arrangement
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Expired - Lifetime
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CN 02261692
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Chinese (zh)
Inventor
张一�
聂红林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microport Medical Shanghai Co Ltd
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Microport Medical Shanghai Co Ltd
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Publication date
Application filed by Microport Medical Shanghai Co Ltd filed Critical Microport Medical Shanghai Co Ltd
Priority to CN 02261692 priority Critical patent/CN2582641Y/en
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Publication of CN2582641Y publication Critical patent/CN2582641Y/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an arteria covering membrane scaffold, which comprises a frame made from alloy material and a high-strength covering membrane material layer which is covered on the inner surface or the outer surface of the frame. The frame is formed by weaving an alloy material wire which has a single multi-layer V-shaped structure and can be implanted into a human body, and the nodal point which is positioned between adjacent layers of the intermediate structure and corresponds to the V-shaped structure are connected differently. The different connecting nodal points have different connection performance, and the requirement for special performance of the covering membrane scaffold in use is satisfied. The utility model has the advantages that the bending conformal property of the covering membrane scaffold is improved, the supporting strength and the wall attachment property of the scaffold in the chamber of a bent pipe are enhanced, the possibility that the scaffold generate displacement and internal leakage after released is reduced, the scaffold is suitable for treating seriously bent blood vessel pathologic change, and the difficulty and the risk of an operation are also lowered. Therefore, the success ratio of the operation and the survival rate of patients after the operation are enhanced.

Description

A kind of tremulous pulse overlay film frame
Technical field
It is that the interventional medical device product is hindered by the aneurysmal Wicresoft of treatment that this utility model relates to a kind of, relates in particular to a kind of blood vessel covered stent.
Background technology
Aneurysm is very dangerous clinically a kind of angiopathy, the old people of mostly occurring in one's mid-50s, but begin in recent years gradually in, adolescence's mass-sending exhibition.Show according to the ASSOCIATE STATISTICS data: if the untimely treatment measure of taking of aneurysm patient, mortality rate in 24 hours reaches about 15%, one week reached about 30% with interior mortality rate, and the mortality rate in month reaches about 75%, and the survival rate in 5 years only is 17%.Therefore, once finding the aneurysm patient, should carry out corresponding treatment to it as early as possible.
At present, utilizing the Wicresoft of inner cavity insulation principle to hinder interventional therapeutic technique is utilized widely, it is that overlay film frame is positioned at the aneurysm place, utilize the isolated tumor chamber of overlay film frame and form new channel of blood flow, aneurysm is after the forfeiture blood supply, and tumor intracavity remained blood forms thrombosis gradually and flesh changes into vascular tissue, and the tumor wall of expansion state shrinks because of being subjected to negative pressure, return near original form gradually, thereby reach the aneurysmal purpose of treatment.
Because patient's lesion vessels form varies with each individual, there is comparatively serious bending greatly, present a lot of overlay film frames can't adapt to the bending of blood vessel, it is insufficient to cause overlay film frame to contact with blood vessel, perhaps overlay film frame bends, and then produces rough sledding such as internal hemorrhage due to trauma, stent support strength reduction even displacement.
Summary of the invention
This utility model technical issues that need to address are a kind of tremulous pulse overlay film frames of design, to overcome the above-mentioned defective that prior art exists.
Technical scheme of the present invention:
Tremulous pulse overlay film frame of the present utility model comprises the framework of being made by alloy material and covers the high strength covering material layer of frame inner surface and/or outer surface.
Said framework is formed by the alloy material silk braiding of the human implantable of single multilamellar, many v-shaped structures, the node of the corresponding v-shaped structure between the adjacent layer of this intermediate structure is carried out different connections, make different link nodes have different switching performances, thereby satisfy overlay film frame property requirement in use.
Alloy material silk about the establishment framework should have excellent biological compatibility, chemical stability and mechanical and physical performance etc., to satisfy the requirement of implant into body.That can adopt at present has Ultimum Ti (nitinol), a perhaps elastomeric stainless steel alloy (spring stainless steel).For covering material, owing to require the thickness of material thin as far as possible, to reduce the diameter of section of conveyer device, guarantee material necessary mechanical and physical performance behind implant into body but must reach, as can not be torn, the part is out of shape in a large number, rapid wearing etc., therefore should adopt have high strength, high performance macromolecular material.Simultaneously, excellent biological compatibility and chemical stability also are to its requisite requirement as embedded material.Present adoptable have expanded ptfe (ePTFE) and Polyester Fibers.
Outstanding advantage of the present utility model shows: performance is complied with in the bending that has greatly improved overlay film frame, strengthened support in intraluminal support strength of bending and attached wall performance, reduce support and discharge the probability that displacement and internal hemorrhage due to trauma take place in the back, make support also be suitable for treating crooked serious vascular lesion, reduce operating difficulty and risk, can therefore improve the success rate of operation and the survival rate of postoperative patient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the alloy material silk structural representation of multilamellar, many v-shaped structures.
Fig. 3 is the V-arrangement minor structure that is provided with the round sealed circle.
Fig. 4 is the V-arrangement minor structure of opening.
Fig. 5 is the alloy framework after the colligation.
Referring to Fig. 1, tremulous pulse overlay film frame of the present utility model comprises framework 4 that is woven into by the alloy material silk and the high strength covering material layer 5 that covers on the framework 4.
By Fig. 2, Fig. 3, Fig. 4 and Fig. 5 as seen, said alloy material silk is the monofilament that comprises a plurality of stair-stepping V-arrangement ripples 1 and connecting rod 2, connects by connecting rod 2 between adjacent layer.Said V-arrangement ripple 1 is made of a plurality of interconnective V-arrangement minor structures 3, the node of V-arrangement minor structure 3 be opening or be provided with round sealed circle 301.
All connecting rods 2 all are banded on same the cylinder evolute of framework 4;
Framework 4 cylinders one side that connecting rod 2 is covered is that framework 4 can be complied with a crooked side, and a corresponding side is for complying with a crooked side;
The node of all opening V-arrangement minor structures 3 all is positioned at the both sides of connecting rod 2;
Covering material layer 5 can cover the inboard and/or the outside of framework 4, and, the two ends of covering material layer 5 are sewn on the framework 4 other contact site of covering material layer 5 and framework 4 with the silk or the line of human implantable, according to the difference that properties of product require, selectively sew up.
The upper left node 303 of first V-arrangement minor structure 3 of the ground floor V-arrangement ripple of the alloy material silk of said multilamellar, many v-shaped structures is connected with the silk or the line 6 of the last node 201 that is connected ground floor and the connecting rod 2 of second layer V-arrangement ripple by human implantable, the following node 304 of above-mentioned first V-arrangement minor structure by human implantable silk or line 6 colligations at the mid point 202 of above-mentioned connecting rod 2, make ground floor V-arrangement ripple constitute a cylindrical member;
The 3 times nodes of each V-arrangement minor structure 304 of the cylindrical member that ground floor V-arrangement ripple constitutes and last node 305 colligation successively of each V-arrangement minor structure 3 of second layer V-arrangement ripple, connect the mid point 202 of the last node colligation of the second layer and the connecting rod 2 of the 3rd layer of V-arrangement ripple at the connecting rod 2 that is connected ground floor and second layer V-arrangement ripple, following node 203 colligations of connection ground floor and the connecting rod 2 of second layer V-arrangement ripple are at the mid point of the connecting rod 2 that is connected the second layer and the 3rd layer of V-arrangement ripple.
According to this utility model, the node colligation that is provided with the V-arrangement minor structure 3 of circular sealing ring 301 is tight colligation; The colligation of pine is all adopted in the colligation that is connected with two leafs of connecting rod 2.
Need to prove that above-mentioned accompanying drawing has just partly illustrated the content that this utility model will be described; The described structure of other non-above-mentioned picture if adopted the described structure of this utility model, technology, mode or method, also is the content that this utility model will be described.As: the V-arrangement ripple number of plies of the alloy material silk of multilamellar, many v-shaped structures can be the number of plies other number of plies in addition that presents is described, and this is mainly according to the required overlay film length of product; The height of every one layer of V-shaped ripple can be other suitable data; The quantity of V-arrangement minor structure 3 can be other suitable data in every one layer of V-shaped ripple; In each V-arrangement minor structure 3, constitute the radius etc. of length, their angulations and circular node on two limits of V-arrangement, according to the difference of product, different data are arranged, what the position of binding wire can be with shown in this utility model accompanying drawing is different.
The described support of this utility model be except can being used for the large artery trunks, also can be used for other than small artery, vein support or as other endoluminal stent.

Claims (7)

1. tremulous pulse overlay film frame, comprise the framework (4) that is woven into by alloy material and cover high strength covering material layer (5) on the framework (4), it is characterized in that, said alloy material silk is the monofilament that comprises a plurality of stair-stepping V-arrangement ripples (1) and connecting rod (2), connect by connecting rod (2) between adjacent layer, said V-arrangement ripple (1) is made of a plurality of interconnective V-arrangement minor structures (3), the node of V-arrangement minor structure (3) be opening or be provided with round sealed circle (301), all connecting rods (2) colligation is on same cylinder evolute of framework (4), framework (4) cylinder one side that connecting rod (2) is covered is that framework (4) can be complied with a crooked side, and the node of opening V-arrangement minor structure (3) all is positioned at the both sides of connecting rod (2).
2. support according to claim 1 is characterized in that, covering material layer (5) covers the inboard of framework (4).
3. support according to claim 1 is characterized in that, covering material layer (5) covers the outside of framework (4).
4. support according to claim 1 is characterized in that, covering material layer (5) is the inboard and the outside of cover framework (4) simultaneously.
5. support according to claim 2 is characterized in that, silk or line (6) with human implantable are sewn to the two ends of covering material layer (5) on the framework (4), and other contact site of covering material layer (5) and framework (4) is selectively sewed up.
6. support according to claim 3 is characterized in that, silk or line (6) with human implantable are sewn to the two ends of covering material layer (5) on the framework (4), and other contact site of covering material layer (5) and framework (4) is selectively sewed up.
7. support according to claim 4 is characterized in that, silk or line (6) with human implantable are sewn to the two ends of covering material layer (5) on the framework (4), and other contact site of covering material layer (5) and framework (4) is selectively sewed up.
CN 02261692 2002-11-19 2002-11-19 Arteria covering membrane supporter Expired - Lifetime CN2582641Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02261692 CN2582641Y (en) 2002-11-19 2002-11-19 Arteria covering membrane supporter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02261692 CN2582641Y (en) 2002-11-19 2002-11-19 Arteria covering membrane supporter

Publications (1)

Publication Number Publication Date
CN2582641Y true CN2582641Y (en) 2003-10-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006017968A1 (en) * 2004-08-17 2006-02-23 Microport Medical (Shanghai) Co., Ltd. Combined film-coated stent which can bend in any direction
CN101176686B (en) * 2007-11-20 2010-06-02 微创医疗器械(上海)有限公司 Tectorial bracket
CN103932821A (en) * 2014-04-08 2014-07-23 许尚栋 Covered stent
CN110833469A (en) * 2018-08-17 2020-02-25 先健科技(深圳)有限公司 Covered stent
CN111329634A (en) * 2018-12-18 2020-06-26 深圳市先健畅通医疗有限公司 Implant and method of manufacturing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006017968A1 (en) * 2004-08-17 2006-02-23 Microport Medical (Shanghai) Co., Ltd. Combined film-coated stent which can bend in any direction
CN100352406C (en) * 2004-08-17 2007-12-05 微创医疗器械(上海)有限公司 Combined membrane-covered stent capable of being bent in any direction
CN101176686B (en) * 2007-11-20 2010-06-02 微创医疗器械(上海)有限公司 Tectorial bracket
CN103932821A (en) * 2014-04-08 2014-07-23 许尚栋 Covered stent
CN110833469A (en) * 2018-08-17 2020-02-25 先健科技(深圳)有限公司 Covered stent
CN111329634A (en) * 2018-12-18 2020-06-26 深圳市先健畅通医疗有限公司 Implant and method of manufacturing the same

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20121119

Granted publication date: 20031029