CN204971420U - Patent blocking device for arterial duct - Google Patents

Patent blocking device for arterial duct Download PDF

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Publication number
CN204971420U
CN204971420U CN201520605223.0U CN201520605223U CN204971420U CN 204971420 U CN204971420 U CN 204971420U CN 201520605223 U CN201520605223 U CN 201520605223U CN 204971420 U CN204971420 U CN 204971420U
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China
Prior art keywords
waist
cover part
plate
support waist
stopper body
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CN201520605223.0U
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Chinese (zh)
Inventor
李博
杨永森
陈娟
蒲忠杰
罗鹏
王超
张芳芳
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Shanghai Shape Memory Alloy Material Co Ltd
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Shanghai Shape Memory Alloy Material Co Ltd
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Abstract

The utility model provides a patent blocking device for arterial duct, include the plugging device body of weaving by nickel titanium alloy silk, its characterized in that, the plugging device body include that first disc that from the top down set gradually covers part, first supports waist, second support waist and opening portion, the partial upper end of first disc cover is through the ligature of ligature steel bushing, or, the plugging device body include that first disc that from the top down set gradually covers part, first supports waist, second support waist, third support waist and second disc and covers the part, upper end that first disc covered the part is through the ligature of ligature steel bushing, the partial lower extreme of second disc cover is through the ligature of ligature steel bushing. The utility model discloses a both ends open -ended hollow structure, the seal wire can pass through, in the shutoff treatment of leaking in patent ductus arteriosus, lamella week, can carry the pathological change position along the seal wire.

Description

A kind of patend ductus arteriosus occluder
Technical field
This utility model relates to a kind of patend ductus arteriosus occluder, is applicable to congenital heart disease arterial catheter patent disease, is also applicable to the disease that the series such as vascular fistula, perivalvular leakage needs closed treating.
Background technology
Congenital heart disease is a kind of common congenital vascular/cardiac septum abnormality disease, causes cardiovascular structures and dysfunction.The annual new cases of China nearly 150,000.
The treatment means of current congenital heart disease mainly contains surgical operation and interventional therapy method.Since 2000, interventional therapy is because its wound is little, it is fast to recover, and easy and simple to handle, the outstanding advantages that safety is good is rapidly developed.The medical apparatus and instruments of non-surgical treatment congenital heart disease that heart defect amplatzer is a kind of percutaneous, implants through conduit.This apparatus is a kind of self-inflated double disk structure, and two dishes are connected by a short waist, and roughly form dumbbell structure, the diameter of short waist matches with the size of defect, and two dishes and waist have sewed up choked flow film in case endocardial tissue is shunted and be beneficial to Hemostatic Oral Liquid grows and climb and cover.When heart defect amplatzer is transported to defect location by conduit, heart defect amplatzer automatic rebounding becomes double disk structure, and two disk-like structures cover the tissue of the two side periphery of defect, grip heart defect amplatzer simultaneously.Waist is packed in heart defect position, and utilizes choked flow film to carry out occlude blood shunting, thus shutoff defect, improve hematodinamics, thus reach therapeutic effect.
For the treatment of congenital heart disease, clinical existence becomes younger treatment trend, namely obtains medical treatment as early as possible period child.This is relevant with the pathogeny of congenital heart disease, as delayed treatment, then there is the greater risk of " disease that juvenile easily controls, young obstinate disease, person in middle and old age's incurable disease ".But due to the restriction of apparatus itself, on market, conventional design stopper namely cannot by more tiny sheath pipe with the stopper of diaphragm baffle, and use conventional thick sheath pipe can damage blood vessel and the heart of juvenile, thus have to delay treatment, wait infant is row treatment again after growing up, thus add operating difficulty, reduce infant quality of life simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of patend ductus arteriosus occluder being beneficial to conveying.
In order to achieve the above object, this utility model provides a kind of patend ductus arteriosus occluder, comprise the stopper body be woven into by nitinol alloy wire, it is characterized in that, described stopper body comprises the first plate-like cover part, first set gradually from top to bottom and supports waist, the second support waist and opening portion, and the upper end of the first plate-like cover part is by the ligation of ligation steel bushing; Or, described stopper body comprises the first plate-like cover part, first set gradually from top to bottom and supports waist, the second support waist, the 3rd support waist and the second plate-like cover part, the upper end of the first plate-like cover part is by the ligation of ligation steel bushing, and the lower end of the second plate-like cover part is by the ligation of ligation steel bushing.
Preferably, described ligation steel bushing is provided with female thread, can be threaded with conveying lever head end.
Preferably, when described stopper body comprise the first plate-like cover part, first set gradually from top to bottom support waist, second support waist and opening portion time, the described first maximum outside diameter supporting waist is less than the maximum outside diameter of the second support waist; When described stopper body comprise the first plate-like cover part, first set gradually from top to bottom support waist, second support waist, the 3rd support waist and the second plate-like cover part time, described first supports the maximum outside diameter that the maximum outside diameter of waist and the described the 3rd maximum outside diameter supporting waist be all less than the second support waist.
Preferably, when described stopper body comprise set gradually from top to bottom the first plate-like cover part, first support waist, second support waist and opening portion time, described stopper body is fixedly connected with 2-4 macromolecule choked flow film or 2-4 shutoff net; When described stopper body comprise set gradually from top to bottom the first plate-like cover part, first support waist, second support waist, the 3rd support waist and the second plate-like cover part time, described described stopper body is fixedly connected with 3-5 macromolecule choked flow film or 3-5 shutoff net.
More preferably, the inside of described stopper body is all located at by described macromolecule choked flow film or shutoff net, or the outside of described stopper body is located at by least one macromolecule choked flow film or shutoff net.
Preferably, the shutoff of the formation at least partially net of described stopper body, or described stopper body is fixedly connected with the shutoff net that nitinol alloy wire is woven into; Wherein, the porosity of described shutoff net is 20%-50%, and aperture is 0.02mm-0.20mm.
More preferably, described shutoff net is made up of 36-72 heart-shaped unit or wicker leaf shape unit.
More preferably, described shutoff net is monolayer or double-decker.
More preferably, the diameter of described nitinol alloy wire is 0.03mm-0.16mm.
More preferably, the support that described shutoff net is made up of 1 or the thicker nitinol alloy wire of 3-6 root supports, and the diameter of described thicker nitinol alloy wire is 0.10mm-0.80mm.
More preferably, the edge of described shutoff net is near the sidewall at heart defect position.
Compared with prior art, the beneficial effects of the utility model are:
1, because ligation steel bushing inner core is hollow, this utility model is the hollow structure of both ends open, and seal wire can pass through, and in the Occlusion therapy of patent ductus arteriosus, perivalvular leakage, can be transported to lesion locations along seal wire.
2, card Absorbable organic halogens of the present utility model rotates, and fits more firm;
3, shutoff net of the present utility model is owing to having specific porosity and aperture, and it has larger surface tension, can reach blocking blood flow effect, and barrier effect is good;
4, when this utility model is made up of nitinol alloy wire completely, it by less sheath pipe, can cross sheath easier simultaneously, less to the damage of blood vessel, therefore, is applicable to child;
5, this utility model is simple to operate, can from tremulous pulse, the two-way conveying of vein.
Accompanying drawing explanation
Fig. 1 is the patend ductus arteriosus occluder structural representation in embodiment 1;
Fig. 2 is the first NiTi alloy shutoff net top view;
Fig. 3 is the first NiTi alloy shutoff net repetitive top view;
Fig. 4 is the second NiTi alloy shutoff net top view;
Fig. 5 is the second NiTi alloy shutoff net repetitive top view;
Fig. 6 is double-deck NiTi alloy shutoff web frame schematic diagram;
Fig. 7 is that the patend ductus arteriosus occluder in embodiment 1 uses schematic diagram;
Fig. 8 is the ligation steel bushing enlarged drawing in Fig. 1;
Fig. 9 a is the patend ductus arteriosus occluder structural representation in embodiment 4;
Fig. 9 b is the patend ductus arteriosus occluder top view in embodiment 4;
Figure 10 a is the patend ductus arteriosus occluder structural representation in embodiment 5;
Figure 10 b is the patend ductus arteriosus occluder top view in embodiment 5.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth this utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of this utility model.In addition should be understood that those skilled in the art can make various changes or modifications this utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read this utility model instruction.
Embodiment 1
As shown in Figure 1, patend ductus arteriosus occluder in the present embodiment, the stopper body 1 that the nitinol alloy wire that to comprise by diameter be 16mm is woven into, described stopper body 1 supports waist 13, second support waist 14 by the first plate-like cover part 12, first set gradually from top to bottom and opening portion 15 forms, and the upper end of the first plate-like cover part 12 is by ligation steel bushing 11 ligation.Described first maximum outside diameter supporting waist 13 is less than the maximum outside diameter of the second support waist 14.Described stopper body 1 makes by polyester thread that to be fixedly connected with 2 diameters be the shutoff net 2 that the nitinol alloy wire of 10mm is woven into.The inside of described stopper body 1 is all located at by described shutoff net 2.As shown in Figure 2, described shutoff net 2 is the single layer structure be made up of multiple heart-shaped unit as shown in Figure 3, and its porosity is 30%, and aperture is 0.05mm-0.09mm.The edge of described shutoff net 2 is near the sidewall at heart defect position, and the blood flow of defect is blocked by shutoff net 2.Described ligation steel bushing 11 is provided with female thread, can be threaded with conveying lever head end.
As shown in Figure 8, described ligation steel bushing 11 is fixing draws nitinol alloy wire in, and nitinol alloy wire is clipped between inside and outside two-layer steel bushing.Described second supports waist 14 plays main support effect, its axially and radial direction all can Compression and Expansion, in defect location, second supports waist 14 is supported on defect wall, its radial direction is compressed, first plate-like cover part 12 covers defect perienchyma, and first supports waist 13 to the second support waist 14 inner radial recovery, simultaneously to outer support, further radial fixation is reached by outwards extruding the second support waist 14, simultaneously, first supports waist 13 can ensure that rotation can be stablized in the first plate-like cover part 12 in certain angle, adapt to the tissue morphology that defect periphery is different.
During use, by delivery sheath, stopper of the present utility model is sent into defect location, discharge this product, stopper is fixed on defect location, when discharging completely, as shown in Figure 7, turn up in opening portion 15, opening portion 15 and the second junction 18 necking down supporting waist 14 close, and the net of shutoff simultaneously 2 starts to carry out blocking-up work, by larger surface tension, reach occlude blood shunting, thus shutoff defect, improve hematodinamics, thus reach therapeutic effect.
Embodiment 2
Be similar to embodiment 1, difference is, as shown in Figure 4, described shutoff net 2 is the single layer structure be made up of multiple wicker leaf shape unit as shown in Figure 5 to the structure of described shutoff net, and its porosity is 40%, and aperture is 0.07mm-0.13mm.
Its using method is identical with embodiment 1.
Embodiment 3
Be similar to embodiment 1, difference is, as shown in Figure 6, described shutoff net 2 is double-decker to the structure of described shutoff net, and its porosity is 20%, and aperture is 0.03mm-0.06mm.
Its using method is identical with embodiment 1.
Embodiment 4
As illustrated in figures 9 a and 9b, patend ductus arteriosus occluder in the present embodiment, the stopper body 1 that the nitinol alloy wire that to comprise by diameter be 12mm is woven into, described stopper body 1 supports waist 13, second support waist 14, the 3rd support waist 16 and the second plate-like cover part 17 by the first plate-like cover part 12, first set gradually from top to bottom and forms, the upper end of the first plate-like cover part 12 is by ligation steel bushing 11 ligation, and the lower end of the second plate-like cover part 17 is by ligation steel bushing 11 ligation.The maximum outside diameter of the described first maximum outside diameter and the described the 3rd support waist 16 supporting waist 13 is all less than the maximum outside diameter of the second support waist 14.It is the shutoff net 2 that the nitinol alloy wire of 8mm is woven into that described stopper body 1 is fixedly connected with 3 diameters.The inside of described stopper body 1 is all located at by described shutoff net 2.As shown in Figure 2, described shutoff net 2 is the single layer structure be made up of multiple heart-shaped unit as shown in Figure 3, and its porosity is 30%, and aperture is 0.05mm-0.09mm.The edge of described shutoff net 2 is near the sidewall at heart defect position, and the blood flow of defect is blocked by shutoff net 2.Described ligation steel bushing 11 is provided with female thread, can be threaded with conveying lever head end.
During use, by delivery sheath, stopper of the present utility model is sent into defect location, discharge this product, stopper is fixed on defect location, and the net of shutoff simultaneously 2 starts to carry out blocking-up work, by larger surface tension, reach occlude blood shunting, thus shutoff defect, improve hematodinamics, thus reach therapeutic effect.
Embodiment 5
As shown in fig. lob, the patend ductus arteriosus occluder in the present embodiment is similar to embodiment 9, and difference is, described stopper body 1 entirety forms a shutoff net 2, and wherein, the porosity of described shutoff net 2 is 50%, and aperture is 0.09mm-0.15mm.As shown in Figure 10 a, the support 3 that described shutoff net 2 is made up of 1 thicker nitinol alloy wire supports, and the diameter of described thicker nitinol alloy wire is 0.16mm.
Its using method is identical with embodiment 1, and the support 3 that described thicker nitinol alloy wire is formed plays and supports and fixing effect.

Claims (10)

1. a patend ductus arteriosus occluder, comprise the stopper body (1) be woven into by nitinol alloy wire, it is characterized in that, described stopper body (1) comprises the first plate-like cover part (12), first set gradually from top to bottom and supports waist (13), the second support waist (14) and opening portion (15), and the upper end of the first plate-like cover part (12) is by ligation steel bushing (11) ligation; Or, described stopper body (1) comprises the first plate-like cover part (12), first set gradually from top to bottom and supports waist (13), the second support waist (14), the 3rd support waist (16) and the second plate-like cover part (17), the upper end of the first plate-like cover part (12) is by ligation steel bushing (11) ligation, and the lower end of the second plate-like cover part (17) is by ligation steel bushing (11) ligation.
2. patend ductus arteriosus occluder as claimed in claim 1, it is characterized in that, described ligation steel bushing (11) is provided with female thread, can be threaded with conveying lever head end.
3. patend ductus arteriosus occluder as claimed in claim 1, it is characterized in that, when described stopper body (1) comprise the first plate-like cover part (12), first set gradually from top to bottom support waist (13), second support waist (14) and opening portion (15) time, the maximum outside diameter of described first support waist (13) is less than the maximum outside diameter of the second support waist (14); When described stopper body (1) comprise the first plate-like cover part (12), first set gradually from top to bottom support waist (13), second support waist (14), the 3rd support waist (16) and second plate-like cover part (17) time, the maximum outside diameter of the described first maximum outside diameter and the described the 3rd support waist (16) supporting waist (13) is all less than the maximum outside diameter of the second support waist (14).
4. patend ductus arteriosus occluder as claimed in claim 1, it is characterized in that, when described stopper body (1) comprise set gradually from top to bottom the first plate-like cover part (12), first support waist (13), second support waist (14) and opening portion (15) time, described stopper body (1) is fixedly connected with 2-4 macromolecule choked flow film or 2-4 shutoff net (2); When described stopper body (1) comprise set gradually from top to bottom the first plate-like cover part (12), first support waist (13), second support waist (14), the 3rd support waist (16) and second plate-like cover part (17) time, described stopper body (1) is fixedly connected with 3-5 macromolecule choked flow film or 3-5 shutoff net (2).
5. patend ductus arteriosus occluder as claimed in claim 1, it is characterized in that, the shutoff of formation at least partially net (2) of described stopper body, or described stopper body (1) is fixedly connected with the shutoff net (2) that nitinol alloy wire is woven into; Wherein, the porosity of described shutoff net (2) is 20%-50%, and aperture is 0.02mm-0.20mm.
6. patend ductus arteriosus occluder as claimed in claim 5, is characterized in that, described shutoff net (2) is made up of 36-72 heart-shaped unit or wicker leaf shape unit.
7. patend ductus arteriosus occluder as claimed in claim 5, it is characterized in that, described shutoff net (2) is monolayer or double-decker.
8. patend ductus arteriosus occluder as claimed in claim 5, it is characterized in that, the diameter of described nitinol alloy wire is 0.03mm-0.16mm.
9. patend ductus arteriosus occluder as claimed in claim 5, it is characterized in that, the support (3) that described shutoff net is made up of 1 or the thicker nitinol alloy wire of 3-6 root supports, and the diameter of described thicker nitinol alloy wire is 0.10mm-0.80mm.
10. patend ductus arteriosus occluder as claimed in claim 5, is characterized in that, the edge of described shutoff net (2) is near the sidewall at heart defect position.
CN201520605223.0U 2015-08-12 2015-08-12 Patent blocking device for arterial duct Active CN204971420U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105476686A (en) * 2016-01-27 2016-04-13 尚小珂 Temporary closure device for heart defects
CN107397561A (en) * 2017-07-20 2017-11-28 上海心玮医疗科技有限公司 A kind of oval hole plugging device
CN107753068A (en) * 2016-08-18 2018-03-06 先健科技(深圳)有限公司 Plugging device
CN108175467A (en) * 2017-12-28 2018-06-19 山东省立医院 A kind of patend ductus arteriosus occluder
CN110507372A (en) * 2019-07-08 2019-11-29 广州新诚生物科技有限公司 A kind of heart occluder that can be adaptive
CN111278367A (en) * 2017-08-21 2020-06-12 Cerus血管内设备有限公司 Blocking device
CN111820963A (en) * 2020-08-17 2020-10-27 复旦大学附属中山医院 Novel double-layer plugging device
CN112998771A (en) * 2019-12-20 2021-06-22 先健科技(深圳)有限公司 Plugging system
CN112998770A (en) * 2019-12-20 2021-06-22 先健科技(深圳)有限公司 Plugging device and plugging system
WO2022127354A1 (en) * 2020-12-17 2022-06-23 先健科技(深圳)有限公司 Occluder and occlusion system
US11648013B2 (en) 2016-03-11 2023-05-16 Cerus Endovascular Limited Occlusion device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105476686A (en) * 2016-01-27 2016-04-13 尚小珂 Temporary closure device for heart defects
US11648013B2 (en) 2016-03-11 2023-05-16 Cerus Endovascular Limited Occlusion device
CN107753068A (en) * 2016-08-18 2018-03-06 先健科技(深圳)有限公司 Plugging device
CN107397561A (en) * 2017-07-20 2017-11-28 上海心玮医疗科技有限公司 A kind of oval hole plugging device
US11812971B2 (en) 2017-08-21 2023-11-14 Cerus Endovascular Limited Occlusion device
CN111278367A (en) * 2017-08-21 2020-06-12 Cerus血管内设备有限公司 Blocking device
CN111278367B (en) * 2017-08-21 2024-02-09 Cerus血管内设备有限公司 Occlusion device
CN108175467A (en) * 2017-12-28 2018-06-19 山东省立医院 A kind of patend ductus arteriosus occluder
CN110507372A (en) * 2019-07-08 2019-11-29 广州新诚生物科技有限公司 A kind of heart occluder that can be adaptive
CN112998771A (en) * 2019-12-20 2021-06-22 先健科技(深圳)有限公司 Plugging system
CN112998770A (en) * 2019-12-20 2021-06-22 先健科技(深圳)有限公司 Plugging device and plugging system
CN111820963A (en) * 2020-08-17 2020-10-27 复旦大学附属中山医院 Novel double-layer plugging device
WO2022127354A1 (en) * 2020-12-17 2022-06-23 先健科技(深圳)有限公司 Occluder and occlusion system

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