CN113384308B - Hook connection type pierceable plugging device system for conveying room wall through catheter - Google Patents
Hook connection type pierceable plugging device system for conveying room wall through catheter Download PDFInfo
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- CN113384308B CN113384308B CN202110615457.3A CN202110615457A CN113384308B CN 113384308 B CN113384308 B CN 113384308B CN 202110615457 A CN202110615457 A CN 202110615457A CN 113384308 B CN113384308 B CN 113384308B
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- 230000001746 atrial effect Effects 0.000 claims abstract description 66
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 13
- 230000017531 blood circulation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 210000005246 left atrium Anatomy 0.000 abstract description 9
- 210000005245 right atrium Anatomy 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002861 ventricular Effects 0.000 abstract description 2
- 210000003492 pulmonary vein Anatomy 0.000 description 4
- 206010003658 Atrial Fibrillation Diseases 0.000 description 2
- 208000008883 Patent Foramen Ovale Diseases 0.000 description 2
- 208000013914 atrial heart septal defect Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000004971 interatrial septum Anatomy 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 210000005248 left atrial appendage Anatomy 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 210000001631 vena cava inferior Anatomy 0.000 description 2
- 208000002330 Congenital Heart Defects Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 208000035478 Interatrial communication Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 206010003664 atrial septal defect Diseases 0.000 description 1
- 210000003157 atrial septum Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 208000028831 congenital heart disease Diseases 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00579—Barbed implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00601—Implements entirely comprised between the two sides of the opening
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00623—Introducing or retrieving devices therefor
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a hook connection type pierceable room wall occluder system conveyed by a catheter, which comprises an occluder and a conveying device for conveying the occluder, wherein the occluder comprises a left atrium side disk and a right atrium side disk, the left atrium side disk and the right atrium side disk are connected through a connecting waist, the centers of the left atrium side disk and the right atrium side disk are provided with a pore canal in a penetrating way, and the end surface of the right atrium side disk is provided with a plurality of connecting pieces around the pore canal; the conveying device comprises a conveying sheath and a conveying cable movably arranged in the conveying sheath, one end of the conveying cable can extend out of one end of the conveying sheath and is connected with a plurality of conveying connecting parts, the conveying connecting parts and the connecting pieces are detachably connected, and the conveying connecting parts are connected with the connecting pieces during conveying. The invention has reliable connection and accurate release, can safely and effectively block the defect part, simultaneously reserves the ventricular septal puncture area and reserves a space for possible atrial septal puncture operation in future needs.
Description
Technical Field
The invention relates to the field of heart atrial septal occluders, in particular to a hook-connected type puncturable room wall occluder system conveyed through a catheter.
Background
With the development of aging population and the high incidence of diseases such as hypertension, valvular disease and the like, patients suffering from atrial fibrillation increase day by day, interventional therapy of atrial fibrillation requires puncturing atrial septa regardless of left atrial appendage occlusion and pulmonary vein isolation therapy, a considerable part of patients with atrial defect have been subjected to operations such as atrial septal defect occlusion or patent foramen ovale occlusion, and the current clinical common occluder is of a central rivet type, for the patients, because the atrial septal has a dense metal net, a fixed steel ring and a connecting rivet are arranged in the center of the occluder, for the atrial septal into which the occluder is implanted, atrial septal puncturing operation is difficult to be carried out, and if the atrial septal puncturing is unsuccessful, operations such as walking pulmonary vein isolation, left atrial appendage occlusion and the like cannot be carried out, so that for the patients implanted with the atrial septal site occluder to smoothly carry out atrial septal puncturing, a new atrial septal occluder is needed.
Disclosure of Invention
The invention provides a hook connection type puncturable trans-catheter delivered room wall occluder system which is complete in occlusion, reliable in connection, accurate in release, capable of safely and effectively occluding defective parts, and meanwhile reserving a ventricular septal puncture area to reserve a space for possible atrial septal puncture operation in future.
In order to achieve the purpose, the invention provides the following technical scheme: a hook-connected type pierceable transcatheter conveying room wall occluder system comprises an occluder and a conveying device used for conveying the occluder, wherein the occluder comprises a left atrial side disk and a right atrial side disk, the left atrial side disk and the right atrial side disk are connected through a connecting waist, a hole channel is arranged in the center of the left atrial side disk and the center of the right atrial side disk in a penetrating mode, and a plurality of connecting pieces are arranged on the end face of the right atrial side disk around the hole channel;
the conveying device comprises a conveying sheath and a conveying cable movably arranged in the conveying sheath, one end of the conveying cable can extend out of one end of the conveying sheath and is connected with a plurality of conveying connecting parts, the conveying connecting parts and the connecting pieces are detachably connected, and the conveying connecting parts are connected with the connecting pieces during conveying.
Preferably, the left atrial side disk, the right atrial side disk and the connecting waist portion are formed by integrally weaving nickel-titanium alloy wires.
Preferably, the central parts of the end surfaces of the left atrial side disk and the right atrial side disk are provided with concave areas.
Preferably, the connector is disposed along an edge of the recessed area.
Preferably, the diameter of the left atrial side disk is larger than the diameter of the right atrial side disk.
Preferably, the connecting piece is a hook-shaped piece, the corresponding conveying connecting part is in a lantern ring shape, and the conveying connecting part is hooked and connected with the connecting piece during conveying.
Preferably, a plurality of barrier membranes are arranged in the occluder, and the edges of the barrier membranes are firmly sewed at the periphery of the occluder through sutures.
Preferably, the barrier membrane has 2-5 pieces and is made of membrane-shaped barrier material.
Preferably, the diameter of the pore canal is 1-5 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the atrial septal plugging device is structurally innovative, the atrial septal plugging device can be used for completely plugging the atrial septal by adopting the left atrial side disk and the right atrial side disk, the connection is reliable, the release is accurate, the defect part can be safely and effectively plugged, a brand-new conveying structure is adopted, the center of the plugging device is reserved by utilizing the detachable connection of the conveying connecting part and the connecting part, a pore channel is arranged in the center of the plugging device, a space is reserved for the subsequent puncture, the device is particularly suitable for interventional plugging of congenital heart disease atrial septal defects or patent foramen ovale, the atrial septal puncture space is reserved by the special structure of the plugging device, and a patient can still normally perform interventional operation treatment on the punctured atrial septal if needing to be treated, and is not influenced;
(2) by using a 'hook-sleeve' connection mode, the conveying cable adopts a 'hook-sleeve' connection mode matched with a conveying mode of the plugging device structure, the novel plugging device can be firmly connected, and the plugging device can be reliably released after the release position is stable;
(3) the blocking membrane is arranged in the chamber body, so that blood flow can be effectively blocked, and the interatrial space can be closed; can adopt the traditional reliable conveying mode and has good application prospect.
Drawings
FIG. 1 is a front view of a half section of the occluding device of the present invention;
FIG. 2 is a schematic perspective view of the occluding device of the present invention;
FIG. 3 is a schematic view of the delivery device of the present invention connected to an occluder;
FIG. 4 is a schematic view of the conveying state of the conveying device of the present invention;
fig. 5 is a schematic view of the internal structure of the conveying device of the present invention.
Reference numerals:
1. right atrial side disc, 2, left atrial side disc, 3, connecting waist, 4, barrier membrane, 5, connecting piece, 6, pore canal, 7, conveying device, 71, conveying sheath, 72, conveying connecting part, 73, conveying cable, 8 and concave area.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 5, the present invention provides the following technical solutions to achieve the above objects: a hook-connected, pierceable transcatheter delivery room wall occluder system comprises an occluder and a delivery device 7 for delivering the occluder, the occluder comprises a left atrial side disk 2 and a right atrial side disk 1, the left atrial side disk 2 and the right atrial side disk 1 are connected through a connecting waist 3, the centers of the left atrial side disk 2 and the right atrial side disk 1 are provided with a pore canal 6 in a penetrating way, the end surface of the right atrial side disk 1 is provided with a plurality of connecting pieces 5 around the pore canal 6, the connecting pieces 5 are arranged around the pore canal 6 to ensure that the centers of the left atrial side disk 2 and the right atrial side disk 1 are both left, and the pore canal 6 can be arranged to reserve necessary space for subsequent puncture, in the embodiment, the diameter of the duct 6 is preferably 1-5mm, and the number of the connecting pieces 5 is not less than 3 for firm and stable connection;
the conveying device 7 comprises a conveying sheath 71 and a conveying cable 73 movably arranged in the conveying sheath 71, one end of the conveying cable 73 can extend out of one end of the conveying sheath 71 and is connected with a plurality of conveying connecting parts 72, the conveying connecting parts 72 are detachably connected with the connecting part 5, the conveying connecting parts 72 are connected with the connecting part 5 during conveying, the inside of the conveying device 7 is connected with the occluder through the conveying cable 73, the occluder can be pulled into the conveying sheath 71 during conveying, the conveying sheath 71 can be conveyed to the left atrium of the heart along a track established by the right atrium, the interatrial septum, the left atrium and the pulmonary vein of the inferior vena cava under the support of a stiffened guide wire, namely an inner core, the inner core is drawn out after the conveying is in place, the conveying cable 73 releases the occluder, and the conveying connecting parts 72 and the connecting part 5 can be quickly detached, is very convenient.
In this embodiment, the diameter of the left atrial side disk 2 is larger than the diameter of the right atrial side disk 1, because when the occluder is released, the left atrial side disk 2 is released first, and can be released in the left atrium, and the larger diameter can better fix the occluder.
In this embodiment, the left atrial side disk 2, the right atrial side disk 1 and the connecting waist portion 3 are formed by integrally weaving nitinol wires, so that the whole occluder can be deformed in a large range and is conveniently pulled into the delivery sheath 71 for transportation.
In this embodiment, the middle portions of the end surfaces of the left atrial side disk 2 and the right atrial side disk 1 are both provided with the recessed area 8, the hole 6 is also arranged at the position of the recessed area 8, the position of the hole 6 can be quickly found out through the recessed area 8 during puncturing, and the length of the hole 6 can be shortened through the recessed area 8, so that puncturing is more convenient. Similarly, the connecting piece 5 is arranged along the edge of the concave area 8, and the position of the connecting piece 5 is more definite for marking and guiding the concave area 8, so that the connecting piece 5 can be quickly found and detached and connected under the condition of narrow sight.
As another embodiment, as shown in fig. 1 to 3, the connecting element 5 is a hook-shaped element, the corresponding conveying connecting part 72 is in a loop shape, and the conveying connecting part 72 is hooked with the connecting element 5 during conveying, so that the connection between the connecting element 5 and the conveying connecting part 72 is more reliable and faster, and the loop-shaped conveying connecting part 72 can be in a metal soft body shape and can be deformed, and the corresponding hook-shaped element is arranged towards the outer side, so that the conveying connecting part 72 is not easy to unhook by itself when hooked with the hook-shaped element.
As another embodiment, a plurality of barrier membranes 4 are arranged in the occluder, the edges of the barrier membranes 4 are firmly sewed at the periphery of the occluder through stitches, the barrier membranes 4 are used for blocking blood flow, and the barrier membranes 4 have 2-5 sheets and are made of membrane-shaped barrier materials, wherein polyester membranes or other polymer membranes are preferred.
The conveying process comprises the following steps:
s1: correspondingly connecting the connecting piece 5 of the right atrium side disk 1 of the occluder with the conveying connecting part 72 of the conveying cable 73, preliminarily recovering the conveying cable 73, pressing the connecting piece 5 by utilizing the constraint force of the pipe orifice of the conveying sheath pipe 71, and taking the occluder into the conveying sheath pipe 71 after being stably connected;
s2, inserting a stiffened guide wire into the conveying device 7 to be used as an inner core, and conveying the conveying sheath 71 to the left atrium along the track established by the right atrium of the inferior vena cava, the interatrial septum, the left atrium and the pulmonary vein by the conveying device 7 to withdraw from the inner core.
S3: pushing the conveying cable 73 to release the left atrial side disk 2 of the occluder into the left atrium, pulling back the occluder until the left atrial side disk 2 is tightly attached to the atrial septum, and withdrawing the conveying sheath 71 to release the right atrial side disk 1 of the occluder;
s4: and performing a drawing test, and completely releasing the conveying connecting part 72 after the plugging is determined to be completely firm, so that the connecting part 5 on the plugging device is completely unhooked from the conveying connecting part 72 of the conveying cable 73, and the plugging device is released.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of this invention can be used in any combination with one another as long as no structural conflict exists, and the combination is not exhaustively described in this specification merely for the sake of brevity and resource savings. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A hook connection type pierceable transcatheter conveying room wall occluder system is characterized by comprising an occluder and a conveying device (7) for conveying the occluder, wherein the occluder comprises a left atrial side disk (2) and a right atrial side disk (1), the left atrial side disk (2) and the right atrial side disk (1) are connected through a connecting waist (3), the centers of the left atrial side disk (2) and the right atrial side disk (1) are provided with a pore canal (6) in a penetrating manner, and the end surface of the right atrial side disk (1) is provided with a plurality of connecting pieces (5) around the pore canal (6);
the conveying device (7) comprises a conveying sheath pipe (71) and a conveying cable (73) movably arranged in the conveying sheath pipe (71), one end of the conveying cable (73) can extend out of one end of the conveying sheath pipe (71) and is connected with a plurality of conveying connecting parts (72), the conveying connecting parts (72) are detachably connected with the connecting piece (5), and the conveying connecting parts (72) are connected with the connecting piece (5) during conveying;
the connecting piece (5) is a hook-shaped piece, the corresponding conveying connecting part (72) is in a lantern ring shape, and the conveying connecting part (72) is hooked with the connecting piece (5) during conveying.
2. The hookingly pierceable ducted delivery room wall blanking system according to claim 1, wherein: the left atrial side disk (2), the right atrial side disk (1) and the connecting waist part (3) are formed by integrally weaving nickel-titanium alloy wires.
3. The hookingly pierceable ducted delivery room wall blanking system according to claim 1, wherein: the middle parts of the end surfaces of the left atrial side disk (2) and the right atrial side disk (1) are provided with a concave area (8).
4. The hookingly pierceable ducted delivery room wall blanking system according to claim 3, wherein: the connecting piece (5) is arranged along the edge of the concave area (8).
5. The hookingly pierceable ducted delivery room wall blanking system according to claim 1, wherein: the diameter of the left atrial side disk (2) is larger than that of the right atrial side disk (1).
6. The hookingly pierceable ducted delivery room wall blanking system according to claim 1, wherein: the occluder is internally provided with a plurality of barrier membranes (4) for occluding blood flow, and the edges of the barrier membranes (4) are firmly sewed at the periphery of the occluder through sutures.
7. The hookingly pierceable ducted delivery room wall blanking system according to claim 6, wherein: the barrier membrane (4) has 2-5 pieces and is made of membrane-shaped barrier materials.
8. The hookingly pierceable ducted delivery room wall blanking system according to claim 1, wherein: the diameter of the pore canal (6) is 1-5 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615457.3A CN113384308B (en) | 2021-06-02 | 2021-06-02 | Hook connection type pierceable plugging device system for conveying room wall through catheter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615457.3A CN113384308B (en) | 2021-06-02 | 2021-06-02 | Hook connection type pierceable plugging device system for conveying room wall through catheter |
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| CN113384308A CN113384308A (en) | 2021-09-14 |
| CN113384308B true CN113384308B (en) | 2022-09-13 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534551A (en) * | 2016-01-12 | 2016-05-04 | 段书华 | Closure device conveying system for pediatric cardiac surgery department |
| CN106037834A (en) * | 2016-05-13 | 2016-10-26 | 广州新诚生物科技有限公司 | Localizable conveying system of heart occluder device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014127641A1 (en) * | 2013-02-19 | 2014-08-28 | 湖南埃普特医疗器械有限公司 | Left atrial appendage plugging device and delivery system |
| CN105054985B (en) * | 2015-07-28 | 2018-05-01 | 杭州诺茂医疗科技有限公司 | A kind of improved occluder for left auricle |
| CN105147350A (en) * | 2015-10-08 | 2015-12-16 | 上海形状记忆合金材料有限公司 | Self-adaptive plugging device |
| CN107157529A (en) * | 2017-07-20 | 2017-09-15 | 韩宇 | The conveying device and its application method of simple ultrasound guidance atrial septal defect plugging device |
| CN211355624U (en) * | 2019-06-21 | 2020-08-28 | 上海普实医疗器械科技有限公司 | Atrial septal defect plugging device |
| CN111956275A (en) * | 2020-09-14 | 2020-11-20 | 聚辉医疗科技(深圳)有限公司 | Plugging device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534551A (en) * | 2016-01-12 | 2016-05-04 | 段书华 | Closure device conveying system for pediatric cardiac surgery department |
| CN106037834A (en) * | 2016-05-13 | 2016-10-26 | 广州新诚生物科技有限公司 | Localizable conveying system of heart occluder device |
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