CN102895008B - Medical occluder and induction system thereof - Google Patents
Medical occluder and induction system thereof Download PDFInfo
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- CN102895008B CN102895008B CN201210370963.1A CN201210370963A CN102895008B CN 102895008 B CN102895008 B CN 102895008B CN 201210370963 A CN201210370963 A CN 201210370963A CN 102895008 B CN102895008 B CN 102895008B
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Abstract
The present invention relates to medical instruments field, particularly relate to a kind of degradable medical stopper.This medical occluder comprises stopper support (1), is arranged on the film on described stopper support (1) and is fixed on the axle (2) of stopper rack far end (5); Described axle (2) is through described stopper support (1), described axle (2) one end is fixedly connected with stopper rack far end (5), the other end is provided with the snap-in structure matched with stopper mount proximal end (4), make stopper support (1) described stopper mount proximal end (4) and described axle (2) other end snap lock upon deployment, described medical occluder is made up of degradable polymer.This medical occluder can be degraded voluntarily after entering human body, eliminates the hidden danger that stopper remains in the side effect that can cause in human body.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of degradable medical stopper and induction system thereof.
Background technology
Interventional therapy in congenital heart diseases is very general, and stopper is the main apparatus of interventional therapy.There is launch in current a lot of company both domestic and external, but these products are all use the establishment of Ultimum Ti silk, then thermal finalization; Utilize the super-elasticity of Nitinol, be prepared into self-expansion type stopper.But human body is not long-term to the demand of apparatus, will be all covered at about 3 months inner membrances, now, stopper is exactly a useless foreign body, and is attended by various side effect, as nickel ion stripping, destroys tissue etc.
Optimal stopper should be the while of meeting plugging action, and after pathological changes is cured, stopper can be degraded voluntarily.But except Nitinol, also can not find suitable elastic material at present, say nothing of degradable elastic material.
Summary of the invention
(1) technical problem that will solve
The object of the present invention is to provide a kind of degradable stopper, in order to solve the problem that stopper can not be degraded voluntarily after pathological changes is cured.
(2) technical scheme
Technical solution of the present invention is as follows:
A kind of medical occluder, comprises stopper support, is arranged on the film on described stopper support and is fixed on the axle of stopper rack far end; It is characterized in that: described axle is through described stopper support, described axle one end is fixedly connected with stopper rack far end, the other end is provided with the snap-in structure matched with stopper mount proximal end, make stopper support described stopper mount proximal end and described axle other end snap lock upon deployment, described medical occluder is made up of degradable polymer.
Preferably, the described axle other end is provided with snap fit tabs, and described stopper mount proximal end is provided with the draw-in groove matched with described snap fit tabs.
Preferably, described stopper mount proximal end is provided with snap fit tabs, and the described axle other end is provided with the draw-in groove matched with described snap fit tabs.
Preferably, described support waist is Collapsible structure.
Preferably, upper disk surface between described stopper rack far end and described support waist, and lower card between described stopper mount proximal end and described support waist all offers gap, upon deployment, described upper disk surface and lower card are in described opening position bending distortion for stopper support.
Preferably, upper disk surface between described stopper rack far end and described support waist, and the lower card between described stopper mount proximal end with described support waist forms by least two sections of movable support bars of connecting, upon deployment, described upper disk surface and lower card are in the bending distortion of the place of being connected in series of described support bar for stopper support.
The induction system of described medical occluder, comprise interior push rod, described interior push rod overcoat has can the outer propelling movement pipe of its axially-movable relatively, and described outer propelling movement pipe overcoat has can the outer tube sheath of its axially-movable relatively, and outer propelling movement pipe is flexibly connected with stopper mount proximal end.
Preferably, described interior push rod mates with axle end union joint the connection forming axial direction, and horizontal direction is not or only have part to connect.
Preferably, being provided with between described interior push rod and outer propelling movement pipe can relative to push rod sleeve pipe in interior push rod and the axial motion of outer propelling movement pipe.
Preferably, described induction system also comprises handle, and for controlling, interior push rod is relatively outer to be pushed pipe and push the motion of pipe relative to outer tube sheath outward described handle.
(3) beneficial effect
Medical occluder provided by the invention, by arranging the card and structure that match between axle and stopper support, has broken away from the restriction that traditional stopper must use memorial alloy or superelastic alloy; Owing to using degradable polymer material, medical occluder provided by the invention can be degraded voluntarily after entering human body, eliminates the hidden danger that stopper remains in the side effect that can cause in human body.
Accompanying drawing explanation
Fig. 1 is schematic diagram before stopper deformation of timbering in the embodiment of the present invention 1;
Fig. 2 is stopper schematic diagram in the embodiment of the present invention 1;
Fig. 3 is the stopper schematic diagram for PDA design in the embodiment of the present invention 2;
Fig. 4 is the stopper schematic diagram for ASD design in the embodiment of the present invention 2;
Fig. 5 is the schematic diagram of induction system in the embodiment of the present invention 3.
In figure: 1: stopper support; 2: axle; 3: support waist; 4: stopper mount proximal end; 5: stopper rack far end; 6: upper disk surface; 7: lower card; 8: gap; 9: axle end union joint; 10: interior push rod; 11: interior propelling movement rod end union joint; 12: interior push rod sleeve pipe; 13: push pipe outward.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described further.
Embodiment 1
One is as shown in Figure 2 for VSD(Ventricularseptaldefect, interventricular septum defect) medical occluder that designs: comprise stopper support 1, be arranged on the film on stopper support 1 and be fixed on the axle 2 of stopper support one end, this end of stopper support is called stopper rack far end 5, accordingly, the other end is called stopper mount proximal end 4; Axle 2 is through stopper support 1, axle 2 one end is fixedly connected with stopper rack far end 5, the other end is provided with the snap-in structure matched with stopper mount proximal end 4, make stopper support 1 stopper mount proximal end 4 and axle 2 other end snap lock upon deployment, medical occluder is made up of degradable polymer.Degradable polymer can be fibroin albumen, PLA(polylactic acid), PGA(polyglycolic acid), PGLA(poly (glycolide-lactide)) or composite etc.
Such structural design, has broken away from the restriction that traditional stopper must use memorial alloy or superelastic alloy; Owing to using degradable polymer material, medical occluder provided by the invention can be degraded voluntarily after entering human body, eliminates the hidden danger that stopper remains in the side effect that can cause in human body.
Further, axle 2 other end is provided with snap fit tabs, and stopper mount proximal end 4 is provided with the draw-in groove matched with snap fit tabs.Or stopper mount proximal end 4 is provided with snap fit tabs, axle 2 other end is provided with the draw-in groove matched with snap fit tabs.Object is to obtain strong constraint when ensureing that stopper mount proximal end 4 arrives relevant position in axle 2, guarantees that stopper support 1 cannot free resilience and keep sealed condition after launching.
Further, support waist 3 is Collapsible structure, and its length and diameter can be determined as required, and object is that what adopt in the present embodiment is diamond structure in order to ensure that stopper can be expanded to length and the diameter for the treatment of needs.
Further, upper disk surface 6 between stopper rack far end 5 and support waist 3, and lower card 7 between stopper mount proximal end 4 and support waist 3 all offers gap 8, gap 8, for convenient sizing, forms the break of upper disk surface 6 and lower card 7 after distortion.Or the upper disk surface 6 between stopper rack far end 5 and support waist 3, and the lower card 7 between stopper mount proximal end 4 with support waist 3 forms by least two sections of movable support bars of connecting, stopper support 1 upon deployment, upper disk surface 6 and lower card 7, in the bending distortion of the place of being connected in series of support bar, are conveniently shaped.
Embodiment 2
A kind of for PDA(Patentductusarteriosus, patent ductus arteriosus) stopper that designs, as shown in Figure 3; A kind of for ASD(Atrialseptaldefect, atrial septum defect) stopper that designs, as shown in Figure 4.They and embodiment 1 are only distinguish to some extent in appearance: for PDA and the lower card of stopper that designs for ASD more flat relative to upper disk surface.
Embodiment 3
The induction system of medical occluder as shown in Figure 5, comprise interior push rod 10, interior push rod 10 overcoat has can the outer propelling movement pipe 13 of its axially-movable relatively, outer propelling movement pipe 13 overcoat has can the outer tube sheath of its axially-movable relatively, outer propelling movement pipe 13 is connected with stopper mount proximal end 4 by rope, also can be connected by link slot, mainly launch to realize and reclaim stopper; Outer tube sheath is mainly for the protection of stopper.
Further, axle 2 other end has axle end union joint 9; Interior push rod 10 mates with axle end union joint 9 connection forming axial direction, and not or only have part to connect, object is not the release facilitating stopper to horizontal direction.
Further, being provided with between interior push rod 10 and outer propelling movement pipe 13 can relative to push rod sleeve pipe 12 in interior push rod 10 and the axially-movable of outer propelling movement pipe 13, axle end union joint 9 can shrink after being connected with interior propelling movement rod end union joint 11 to be got back in interior push rod sleeve pipe 12, form laterally constraint, at this moment interior push rod 10 is firmly connected with stopper, during release, axle end union joint 9 and interior propelling movement rod end union joint 11 are released interior push rod sleeve pipe 12, remove laterally constraint, push rod 10 in controlling, axle end union joint 9 just can depart from interior propelling movement rod end union joint 11.
Further, induction system also comprises handle, and handle is for controlling the motion relative to outer tube sheath of interior push rod 10, relatively outer propelling movement pipe 13 and outer propelling movement pipe 13.。
In practical operation with convergent divergent channel with the use of, convergent divergent channel is removed after arriving pathological changes, first push rod 10 in being controlled by handle, thus control stopper, stopper becomes umbrella from tubulose, shutoff pathological changes, the outer pipe 13 that pushes disconnects with stopper simultaneously, and push rod sleeve pipe 12 in being controlled by handle, removes laterally constraint, interior push rod 10 is separated with stopper, and stopper discharges completely.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification, therefore all equivalent technical schemes also belong to protection category of the present invention.
Claims (7)
1. a medical occluder, comprises stopper support (1), is arranged on the film on described stopper support (1) and is fixed on the axle (2) of stopper rack far end (5); It is characterized in that: described axle (2) is through described stopper support (1), described axle (2) one end is fixedly connected with stopper rack far end (5), the other end is provided with the snap-in structure matched with stopper mount proximal end (4), make stopper support (1) described stopper mount proximal end (4) and described axle (2) other end snap lock upon deployment, described medical occluder is made up of degradable polymer;
Wherein, be positioned at the upper disk surface (6) between described stopper rack far end (5) and described support waist (3), and the lower card (7) being positioned between described stopper mount proximal end (4) and described support waist (3) all offers gap (8), upon deployment, described upper disk surface (6) and lower card (7) are in the bending distortion of described gap (8) place for stopper support (1); Described support waist (3) is telescopic diamond structure;
Wherein, be positioned at the upper disk surface (6) between described stopper rack far end (5) and described support waist (3), and the lower card (7) be positioned between described stopper mount proximal end (4) with described support waist (3) forms by least two sections of movable support bars of connecting, upon deployment, described upper disk surface (6) and lower card (7) are in the bending distortion of the place of being connected in series of described support bar for stopper support (1).
2. medical occluder according to claim 1, it is characterized in that: described axle (2) other end is provided with snap fit tabs, described stopper mount proximal end (4) is provided with the draw-in groove matched with described snap fit tabs.
3. medical occluder according to claim 1, is characterized in that: described stopper mount proximal end (4) is provided with snap fit tabs, and described axle (2) other end is provided with the draw-in groove matched with described snap fit tabs.
4. the induction system of a medical occluder according to claim 1, comprise interior push rod (10), described interior push rod (10) overcoat has can outer propelling movement pipe (13) of its axially-movable relatively, described outer push that pipe (13) overcoat has can the outer tube sheath of its axially-movable relatively, described outer propelling movement is managed (13) and is flexibly connected with described stopper mount proximal end (4).
5. induction system according to claim 4, is characterized in that: described axle (2) other end has axle end union joint (9); Described interior push rod (10) mates with axle end union joint (9) connection forming axial direction.
6. induction system according to claim 5, is characterized in that: being provided with between described interior push rod (10) and outer propelling movement pipe (13) can relative to interior push rod (10) and the outer interior push rod sleeve pipe (12) pushing pipe (13) axially-movable.
7. according to the induction system in claim 4 to 6 described in any one, it is characterized in that: described induction system also comprises with interior push rod (10), pushes the handle of managing (13) and being connected outward, for controlling, interior push rod (10) is relatively outer to be pushed pipe (13) and pushes the motion of pipe (13) relative to outer tube sheath outward described handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210370963.1A CN102895008B (en) | 2012-09-28 | 2012-09-28 | Medical occluder and induction system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210370963.1A CN102895008B (en) | 2012-09-28 | 2012-09-28 | Medical occluder and induction system thereof |
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| CN102895008A CN102895008A (en) | 2013-01-30 |
| CN102895008B true CN102895008B (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4215126A4 (en) * | 2020-10-28 | 2024-03-20 | Shanghai MicroPort CardioAdvent Co., Ltd. | Medical system and medical device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015165117A1 (en) * | 2014-04-30 | 2015-11-05 | 乐普（北京）医疗器械股份有限公司 | Medical closure system |
| CN107440760B (en) * | 2016-05-31 | 2020-06-16 | 上海微创医疗器械（集团）有限公司 | Left atrial appendage occlusion device's conveying system |
| US11039822B2 (en) | 2016-03-18 | 2021-06-22 | Shanghai Microport Medical (Group) Co., Ltd. | Left atrial appendage closure and delivery system thereof |
| CN107080564A (en) * | 2017-05-22 | 2017-08-22 | 王有然 | Single riveting, self-adaptation type oval hole plugging device |
| DE102019100531B4 (en) | 2019-01-10 | 2021-08-19 | Qatna Medical GmbH | Occluder delivery system and delivery unit |
| CN110507373B (en) * | 2019-07-08 | 2024-08-06 | 江苏省肿瘤医院 | Medical plugging system |
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| CN101234041A (en) * | 2008-01-31 | 2008-08-06 | 上海交通大学 | Atrial septal defect occluder made of biodegradable materials |
| CN101370432A (en) * | 2005-11-11 | 2009-02-18 | 奥特鲁泰克有限公司 | Medical self-expansion plugging device |
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| US7044134B2 (en) * | 1999-11-08 | 2006-05-16 | Ev3 Sunnyvale, Inc | Method of implanting a device in the left atrial appendage |
| US8764848B2 (en) * | 2004-09-24 | 2014-07-01 | W.L. Gore & Associates, Inc. | Occluder device double securement system for delivery/recovery of such occluder device |
| WO2007073566A1 (en) * | 2005-12-22 | 2007-06-28 | Nmt Medical, Inc. | Catch members for occluder devices |
| CA2646825A1 (en) * | 2006-03-31 | 2007-10-11 | Nmt Medical, Inc. | Adjustable length patent foramen ovale (pfo) occluder and catch system |
| US8252022B2 (en) * | 2009-07-13 | 2012-08-28 | Vascular Solutions, Inc. | Metal vascular aperture closure device |
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| CN101370432A (en) * | 2005-11-11 | 2009-02-18 | 奥特鲁泰克有限公司 | Medical self-expansion plugging device |
| CN101234041A (en) * | 2008-01-31 | 2008-08-06 | 上海交通大学 | Atrial septal defect occluder made of biodegradable materials |
Cited By (1)
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| EP4215126A4 (en) * | 2020-10-28 | 2024-03-20 | Shanghai MicroPort CardioAdvent Co., Ltd. | Medical system and medical device |
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| CN102895008A (en) | 2013-01-30 |
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Owner name: SHANGHAI MARMEM MATERIAL CO., LTD. Free format text: FORMER OWNER: LEPU (BEIJING) MEDICAL INSTRUMENT CO., LTD. Effective date: 20131022 |
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Effective date of registration: 20131022 Address after: 102200 Changping District science and Technology Park, Beijing Road, No. 37 super building, No. 3 Applicant after: Shanghai Marmem Material Co., Ltd. Address before: 102200 Changping District science and Technology Park, Beijing Road, No. 37 super building, No. 3 Applicant before: Lepu (Beijing) Medical Equipment Co.,Ltd. |
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