CN204016555U - A kind of stopper - Google Patents
A kind of stopper Download PDFInfo
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- CN204016555U CN204016555U CN201420425607.XU CN201420425607U CN204016555U CN 204016555 U CN204016555 U CN 204016555U CN 201420425607 U CN201420425607 U CN 201420425607U CN 204016555 U CN204016555 U CN 204016555U
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- stopper
- choked flow
- waist
- shape memory
- silk thread
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Abstract
This utility model provides a kind of stopper, comprise the network of shape memory silk thread braiding, described shape memory silk thread collects formation node at the two ends of support, described support comprises waist and at least one choked flow card, described choked flow card is connected with waist, the diameter of described choked flow card is greater than the diameter of waist, is equipped with choked flow film in described choked flow card and waist, and the cross section of described shape memory silk thread is flat.Preferably, a node of described support is provided with jointing in the present embodiment.This utility model application flat nitinol alloy wire makes stopper, effectively improves the plugging effect at once of stopper, by important performances such as property, endothelialization speed; In addition, the design that this utility model makes at stopper silk material vpg connection and improve and do not change existing technique, namely ensure that working effect, additionally reduces the use amount of nitinol alloy wire, greatly provide cost savings.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of stopper for cardiac intervention treatment.
Background technology
Congenital heart disease (abbreviation congenital heart disease) refers to that the anatomical structure caused due to the formation obstacle of heart and trunk or abnormal development in fetal development period is abnormal, or the passage should automatically closed after birth fails to close the situation of (belonging to normal fetus).Congenital heart disease is a modal class in congenital malformation, accounts for 28% of various congenital malformation.And congenital heart disease the most common comprises atrial septal defect (ASD), interventricular septal defect (VSD), patent ductus arteriosus (PDA).Suffer from congenital heart disease number in the neonate of annual China and about have 150,000-20 ten thousand.Traditional Therapeutic Method is surgery open chest surgery, by the technology of sticking patch or suture needle, defect is repaired, but surgery hands is comparatively large to body injury, has certain postoperative complication and leaves cicatrix, this can affect the physical and mental health of patient and the quality of life after being grown up for a long time.
The appearance of stopper for the treatment of congenital heart disease this situation is had larger improvement.Stopper is the medical apparatus and instruments that one is used for the treatment of the diseases such as structural atrial septal defect (ASD), interventricular septal defect (VSD), patent ductus arteriosus (PDA).Stopper is generally woven by nitinol alloy wire and forms, and has single choked flow card and two choked flow disk structure.By operation, stopper is fixed on defect place, can stops blood flow, overlay on stopper surface along with endothelial tissue is climbed, defect heals complete blocking blood flow.The waist of stopper and the diameter of defect match, stopper is not easily shifted, and reduces residual shunt incidence rate, choked flow disk structure is under nitinol alloy wire Memorability and hyperelastic effect, make beating of shutoff deformation and heart collaborative, reduce residual shunt further.But current stopper technology also has numerous new requirement in clinical practice, main performance still has the space of very much progress; The new plugging effect at once requiring to include stopper, by property, endothelialization speed etc.Wherein plugging effect refers to that stopper is after implantation defect at once, utilizes self structure to stop the effect of blood flow by defect in the short time.This is one of leading indicator investigating stopper surgical effect clinically, if stopper utilizes contrast agent or ultrasound observation not to have residual shunt just can judge implantation success after implanting.Refer to that stopper to be entered the smooth and easy degree in cardiac procedure by delivery sheath intravascular or puncture by property.In order to reduce the damage to blood vessel and cardiac puncture, require that the stopper of same size can by the delivery sheath of smaller szie by property, therefore stopper is to draw in diameter under the state in sheath pipe less.Endothelialization is exactly the process that endotheliocyte covers in stopper device superficial growth and by device, and namely endothelialization speed characterize the recovery organizing human body after stopper is implanted, and speed illustrates that stopper biocompatibility is better sooner, recovers faster.Because endothelialization speed directly affects the working effect of stopper in defect, so the endothelialization speed how increasing stopper becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of while guarantee plugging effect, improves the stopper of Post operation endothelialization speed, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, this utility model adopts following technical scheme: a kind of stopper, comprise the network of shape memory silk thread braiding, described shape memory silk thread collects formation node at the two ends of support, described support comprises waist and at least one choked flow card, and described choked flow card is connected with waist, and the diameter of described choked flow card is greater than the diameter of waist, be equipped with choked flow film in described choked flow card and waist, the cross section of described shape memory silk thread is flat.
Preferably, a node of described support is provided with jointing.
Preferably, the cross section of described shape memory silk thread is rectangle or ellipse.
Preferably, described choked flow film is polytetrafluoroethylmaterial material or pet material.
Preferably, described shape memory silk thread is nitinol alloy wire.
As mentioned above, a kind of stopper of this utility model, has following beneficial effect:
This utility model application flat nitinol alloy wire makes stopper, effectively improves the plugging effect at once of stopper, by important performances such as property, endothelialization speed.The design made at stopper silk material vpg connection and improve and do not change existing technique is only that nitinol alloy wire is pressed into flat when producing; Because nitinol alloy wire is flat, so reduce the use amount of nitinol alloy wire while ensureing plugging effect, therefore cost of the present utility model is lower, and real work Be very effective.
Accompanying drawing explanation
Fig. 1 is the stopper structure chart of this utility model list choked flow card.
Fig. 2 is the A-A place sectional view of Fig. 1.
Fig. 3 is the stopper top view of the two choked flow card of this utility model.
Fig. 4 is C-C place sectional view in Fig. 3.
Fig. 5 is the structure chart of D place shape memory silk thread in B place and Fig. 4 in Fig. 2.
In figure: 1 waist
2 choked flow cards
3 choked flow films
4 jointings
Detailed description of the invention
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of this utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that this utility model can produce and the object that can reach, all should still drop in scope that technology contents that this utility model discloses can contain.Simultaneously, quote in this description as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of this utility model.
Fig. 1-Figure 4 shows that a kind of stopper of this utility model, comprise the network of shape memory silk thread braiding, described shape memory silk thread collects formation node at the two ends of support, described support comprises waist 1 and at least one choked flow card 2, described choked flow card 2 is connected with waist 1, and the diameter of described choked flow card 2 is greater than the diameter of waist 1 so that play plugging effect.As depicted in figs. 1 and 2, stopper is provided with a choked flow card 2, and as shown in Figure 3 and Figure 4, stopper is provided with two choked flow cards 2.Be equipped with choked flow film 3 in the card of choked flow described in this utility model 2 and waist 1, the cross section of described shape memory silk thread is flat.As shown in figures 2 or 4, this utility model decreases the use amount of shape memory silk thread, because flat cross section structure makes stopper entirety improve shutoff area, in addition owing to decreasing the use of shape memory silk thread, also efficiently reduce maximum gauge when stopper shrinks, namely enhance the property passed through of stopper.In fact, the shape memory silk thread in flat cross section is when block blood, and its shunting angle more greatly (namely blood flow is more tending towards changing into stopper surface tangent direction); Further, because flat shape memory silk thread surface profile is more mild, namely nitinol alloy wire is wider, and therefore the structure of flat is advantageously climbed in endothelial tissue and covered and endothelialization, and the clad can of climbing namely increasing endothelial tissue amasss, and improves endothelialization speed.
In the present embodiment, conveniently stopper matches with its conveyer device, and a node of described support is provided with jointing 4, and described jointing 4 is one and establishes female column structure.When carrying stopper, first by conveyer device and jointing 4 threaded engagement, after stopper conveying puts in place, rotationally conveying device is exited.
As shown in Figure 5, the cross section of the shape memory silk thread described in the present embodiment is the ellipse shown in the rectangle shown in a, b or the similar round shown in c, wherein oval and similar round is preferred technical scheme, because its surface is more mild, and does not need chamfering or fillet.
The film of choked flow described in the present embodiment 3 is polytetrafluoroethylmaterial material or pet material.
The silk thread of shape memory described in the present embodiment is nitinol alloy wire.
Using method of the present utility model is identical with conventional stopper using method, is all that the diseased region being delivered to human body by sheath pipe carries out Occlusion therapy.
In sum, a kind of stopper of this utility model, endothelialization speed when effectively can improve the plugging effect of stopper and use, so this utility model effectively overcomes practical problems more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting this utility model.This utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that this utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. a stopper, comprise the network of shape memory silk thread braiding, it is characterized in that: described shape memory silk thread collects formation node at the two ends of support, described support comprises waist (1) and at least one choked flow card (2), described choked flow card (2) is connected with waist (1), the diameter of described choked flow card (2) is greater than the diameter of waist (1), be equipped with choked flow film (3) in described choked flow card (2) and waist (1), the cross section of described shape memory silk thread is flat.
2. a kind of stopper according to claim 1, is characterized in that: a node of described support is provided with jointing (4).
3. a kind of stopper according to claim 1, is characterized in that: the cross section of described shape memory silk thread is rectangle, ellipse or similar round.
4. a kind of stopper according to claim 1, is characterized in that: described choked flow film (3) is polytetrafluoroethylmaterial material or pet material.
5. a kind of stopper according to claim 1, is characterized in that: described shape memory silk thread is nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425607.XU CN204016555U (en) | 2014-07-30 | 2014-07-30 | A kind of stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420425607.XU CN204016555U (en) | 2014-07-30 | 2014-07-30 | A kind of stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204016555U true CN204016555U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420425607.XU Active CN204016555U (en) | 2014-07-30 | 2014-07-30 | A kind of stopper |
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| CN (1) | CN204016555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992120A (en) * | 2015-07-28 | 2018-12-14 | 杭州诺茂医疗科技有限公司 | A kind of improved occluder for left auricle |
| CN109833066A (en) * | 2017-11-24 | 2019-06-04 | 先健科技(深圳)有限公司 | Plugging device |
| CN111544060A (en) * | 2016-12-31 | 2020-08-18 | 先健科技(深圳)有限公司 | Plugging device |
-
2014
- 2014-07-30 CN CN201420425607.XU patent/CN204016555U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992120A (en) * | 2015-07-28 | 2018-12-14 | 杭州诺茂医疗科技有限公司 | A kind of improved occluder for left auricle |
| CN108992120B (en) * | 2015-07-28 | 2022-01-07 | 杭州德诺电生理医疗科技有限公司 | Improved left auricle occluder |
| CN111544060A (en) * | 2016-12-31 | 2020-08-18 | 先健科技(深圳)有限公司 | Plugging device |
| CN109833066A (en) * | 2017-11-24 | 2019-06-04 | 先健科技(深圳)有限公司 | Plugging device |
| CN109833066B (en) * | 2017-11-24 | 2021-02-23 | 先健科技(深圳)有限公司 | Plugging device |
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