CN116831679B - Aneurysm vortex device easy to release - Google Patents
Aneurysm vortex device easy to release Download PDFInfo
- Publication number
- CN116831679B CN116831679B CN202311124879.6A CN202311124879A CN116831679B CN 116831679 B CN116831679 B CN 116831679B CN 202311124879 A CN202311124879 A CN 202311124879A CN 116831679 B CN116831679 B CN 116831679B
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- net
- turbulence
- release
- aneurysm
- self
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- 206010002329 Aneurysm Diseases 0.000 title claims abstract description 43
- 230000009916 joint effect Effects 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000008450 Intracranial aneurysm Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000008338 local blood flow Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12027—Type of occlusion
- A61B17/12031—Type of occlusion complete occlusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
- A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Neurosurgery (AREA)
- Prostheses (AREA)
Abstract
The invention discloses an aneurysm turbulence device easy to release, which comprises a conveying pipe, a pushing rod and a turbulence net, wherein the pushing rod and the turbulence net are positioned in the conveying pipe, the conveying pipe is used for conveying the pushing rod and the turbulence net into an aneurysm, the turbulence net is provided with a compressed state compressed on the pushing rod and an expanded state expanded in the aneurysm, the pushing rod is provided with a release structure, the release structure is positioned in the conveying pipe and is in limit connection with the turbulence net in an initial state so as to limit the turbulence net on the pushing rod, the conveying pipe is configured to retract relative to the pushing rod, when the release structure is exposed on the conveying pipe, the release structure deforms and is disconnected with the turbulence net so as to release the turbulence net, and therefore, the release structure is not required to be additionally controlled, and further the release structure is easy to release in the connecting process of the release stream net and the release structure, and the situation that the release structure is difficult or broken due to improper control of the release structure is avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an aneurysm turbulence device easy to release.
Background
Chinese patent CN104771200a discloses an intracranial aneurysm neck reconstruction device, which, by implanting the reconstruction device body, i.e. a turbulent flow net, slows down the flow velocity of blood in the aneurysm, and changes the hemodynamics in the aneurysm, so as to reduce the impact of local blood flow on the tumor wall. This CN104771200A specifically includes rebuilding device body, the seal wire, the outer sheath pipe, rebuilding device body proximal end outwards expands gradually to rebuilding device body distal end, rebuilding device body distal end is equipped with the head end and develops the piece, rebuilding device body middle-end is equipped with middle-end and develops the piece, rebuilding device body's proximal end draws in down to be fixed on the seal wire, the seal wire is located the outer sheath pipe, seal wire and rebuilding device body junction is equipped with the trip point, the trip ware is connected to the other end of seal wire, through adjustment current/voltage and the time of trip ware, can realize rebuilding device body promptly the vortex net is at the trip point and is taken off, this kind of electrolytic trip is very slow, and the unsuccessful phenomenon of trip appears once still easily.
In order to realize quick release, more and more aneurysm turbulence devices adopt a mechanical release mode to release a disturbed flow net, for example, a release rope is pulled to release the connection between the aneurysm turbulence devices and the disturbed flow net, so as to realize the release of the disturbed flow net, however, a traditional release structure, for example, the connection mode of the release rope and the disturbed flow net, is easy to connect too tightly, so that the phenomenon of difficult release or breakage of the release structure easily occurs in the process of releasing the disturbed flow net.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides an aneurysm turbulence device easy to release so as to overcome the technical defects pointed out in the background art.
According to the invention, an aneurysm turbulence device easy to detach is provided, comprising a conveying pipe, a pushing rod and a turbulence net, wherein the pushing rod and the turbulence net are positioned in the conveying pipe, the conveying pipe is used for conveying the pushing rod and the turbulence net into an aneurysm, the turbulence net is provided with a compressed state compressed on the pushing rod and an expanded state expanded in the aneurysm, the pushing rod is provided with a detachment structure, in an initial state, the detachment structure is positioned in the conveying pipe and is in limit connection with the turbulence net so as to limit the turbulence net on the pushing rod, and the conveying pipe is configured to retract relative to the pushing rod, so that when the detachment structure is exposed on the conveying pipe, the detachment structure is deformed and is disconnected with the turbulence net so as to detach the turbulence net.
Further, the release structure is a release piece, in an initial state, the release piece is located in the conveying pipe, and the release piece is tightly adhered to the inner wall of the conveying pipe and connected with the turbulent network card, and after the release piece is exposed out of the conveying pipe, the release piece bounces towards one side deviating from the push rod so as not to be connected with the turbulent network card any more.
Further, the turbulent flow net is fixed with a self-closing sheet which can be clamped with the release sheet, and when the release sheet is not completely exposed out of the conveying pipe, the pushing rod can drive the turbulent flow net to retract through the clamping action of the release sheet and the self-closing sheet.
Further, the release tab is located at a proximal end of the disturbance flow network.
Further, the release sheets and the self-closing sheets are all arranged in a plurality, the self-closing sheets are clamped between two adjacent release sheets, and the self-closing sheets and the release sheets are close to the center of the disturbance flow net after being not clamped any more so as to realize autonomous closing.
Further, the release sheets are formed into a T shape, a concave clamping groove is formed between two adjacent release sheets, and the self-closing sheets are clamped in the clamping groove.
Further, the self-closing sheet is formed into an inverted T shape, and the inverted T-shaped self-closing sheet is mutually clamped with the clamping groove.
Further, the turbulent web has a first opening which is contracted independently and a second opening which is expanded independently and radially, and the released turbulent web is gradually unfolded and formed into a cone shape.
Further, the plurality of self-closing sheets are circumferentially distributed along the inner circular surface of the first opening, and after the turbulent flow net is released, the second opening of the turbulent flow net radially expands to be attached to the inner wall of the aneurysm, and the first opening of the turbulent flow net radially contracts and is closed by the plurality of self-closing sheets.
Further, the plurality of self-closing pieces are firstly attached to the outer wall of the pushing rod, and the first opening of the interference flow net is automatically closed after the pushing rod is retracted.
Compared with the prior art, the release structure can automatically deform and be disconnected with the turbulent flow net after being exposed out of the conveying pipe, so that the release turbulent flow net is realized, the release structure is not required to be additionally controlled, and further the release structure is easy to release in the connection process of the release turbulent flow net and the release structure, and the situation that the release structure is difficult to break or the release structure is broken due to improper control of the release structure is avoided.
Drawings
The invention will be more fully understood and its attendant advantages and features will be more readily understood by reference to the following detailed description, taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the turbulent web of the present invention fully positioned within a conveying pipe.
Fig. 2 is a schematic view of the structure of fig. 1 with the delivery tube removed.
Fig. 3 is a schematic view of the push rod of fig. 2.
Fig. 4 is a schematic diagram of the structure of the interference network of fig. 2.
FIG. 5 is a schematic view showing the overall structure of the spoiler mesh portion exposed under the conveying pipe according to the embodiment of the present invention.
FIG. 6 is a schematic diagram of the overall structure of the spoiler net according to the embodiment of the present invention fully exposed under the conveying pipe.
Fig. 7 is a schematic view of a structure of a spoiler mesh under the spoiler mesh retracted from the push rod in fig. 6.
In the accompanying drawings: 1 is a conveying pipe, 2 is a push rod, 3 is a disturbance flow net, 4 is a first opening, 5 is a second opening, 6 is a release structure, 7 is a self-closing sheet, and 8 is a clamping groove.
It should be noted that the drawings are for illustrating the invention and are not to be construed as limiting the invention. Note that the drawings representing structures may not be drawn to scale. Also, in the drawings, the same or similar elements are denoted by the same or similar reference numerals.
Detailed Description
In order that the invention may be more readily understood, a detailed description of the invention is provided below along with specific embodiments and accompanying figures.
The terms "proximal" and "distal" in the sense of the present invention should be understood as meaning, viewed from the direction of the attending physician, the term "proximal" referring to the end proximal to the attending physician, i.e. corresponding to the "left end" referred to with reference to the accompanying drawings, and the term "distal" referring to the end distal to the attending physician, i.e. corresponding to the "right end" referred to with reference to the accompanying drawings.
As shown in fig. 1 to 7, the aneurysm turbulence device of the present embodiment includes a conveying pipe 1, a pushing rod 2 and a turbulence net 3 located in the conveying pipe 1, where the conveying pipe 1 and the pushing rod 2 are both elastic, the conveying pipe 1 is used to convey the pushing rod 2 and the turbulence net 3 into an aneurysm, the turbulence net 3 has a plurality of meshes, after the turbulence net 3 seals the aneurysm opening of the aneurysm, the plurality of meshes on the turbulence net 3 allow blood to flow into the aneurysm at a speed lower than that of thrombosis, so that the turbulence net 3 can block blood flow and gradually shrink the aneurysm, the turbulence net 3 is made of a self-expandable material, such as nickel titanium, and has a first opening 4 and a second opening 5, where the first opening 4 and the second opening 5 are relatively arranged and shaped by heat treatment, so that after the turbulence net 3 is released, the first opening 4 is automatically contracted radially and can be closed, the second opening 5 of the turbulence net 3 is radially expanded to be attached to the inner wall of the aneurysm after the aneurysm is sealed, and the first opening 4 of the turbulence net 3 is sealed and closed, and the aneurysm is not further sealed.
The disturbing net 3 has a compressed state compressed on the push rod 1 and an expanded state expanded in the aneurysm, the push rod 1 is provided with a release structure 6, when the disturbing net 3 is completely positioned in the conveying pipe 1 in the initial state, the release structure 6 is positioned in the conveying pipe 1 and is in limit connection with the disturbing net 3 so as to limit the disturbing net 3 on the push rod 2, the conveying pipe 1 is configured to retract relative to the push rod 2, when the release structure 6 is exposed out of the conveying pipe 1, the release structure 6 deforms and is disconnected with the disturbing net 3, so that the disturbing net 3 is released, and therefore, the release structure 6 is not required to be additionally controlled, and further, the release is easy to release in the connecting process of the disturbing net 3 and the release structure 6, and the situation that the release structure 6 is broken or the release structure 6 is difficult due to improper control of the release structure 6 is avoided.
The release structure 6 is a release sheet, the turbulent flow net 3 is fixed with a self-closing sheet 7 which can be clamped with the release sheet, and the self-closing sheet 7 is fixed at the near end of the turbulent flow net 3, namely at the first opening 4. In the initial state, the release sheet is located in the conveying pipe 1, and the release sheet is tightly adhered to the inner wall of the conveying pipe 1 and is clamped with the self-closing sheet 7 of the turbulent flow net 3, after the release sheet is exposed out of the conveying pipe 1, the release sheet springs away from one side of the push rod 2 under the elastic action of the release sheet so as not to be clamped with the self-closing sheet 7 of the turbulent flow net 3 any more, so that the release of the turbulent flow net 3 is realized. Specifically, the release sheets and the self-closing sheets 7 are all set to be a plurality of, a plurality of release sheets are arranged around the outer surface of the push rod 2, the distal end of each release sheet is fixedly connected with the push rod 2, the proximal end of each release sheet is formed into a free end and automatically bounces away from the self-closing sheet 7 after the external acting force such as the binding force of the conveying pipe 1 disappears, each release sheet is integrally formed into a T shape, a concave-shaped clamping groove 8 is formed between two adjacent release sheets, a plurality of self-closing sheets 7 are circumferentially distributed along the inner circular surface of the first opening 4 of the turbulent flow net 3, the self-closing sheets 7 are integrally formed into an inverted T shape, and the inverted T-shaped self-closing sheets 7 are mutually clamped with the clamping grooves, so that the self-closing sheets 7 are clamped between the two adjacent release sheets, and the self-closing sheets 7 are close to the center of the turbulent flow net 3 after no longer clamped, and further the closure of the first opening 4 of the turbulent flow net 3 is realized.
Although the push rod 2 has elasticity and does not damage the aneurysm wall of the aneurysm, in order to better avoid this phenomenon, in this embodiment, the release structure 6 is disposed near the distal end of the push rod 2, and when the release structure 6 limits the interference net 3 on the push rod 2, the distal end of the push rod 2 does not exceed the second opening 5 of the interference net 3, that is, the distal end of the push rod 2 is located inside the interference net 3, and the interference net 3 is only partially sleeved on the push rod 2, so that after the interference net 3 is completely conveyed into the aneurysm, the push rod 2 is only partially conveyed into the aneurysm, and therefore damage is not easily caused to the opposite segment of the aneurysm opening of the aneurysm.
When the device is used, the push rod 2 and the turbulent flow net 3 are firstly conveyed into the aneurysm through the conveying pipe 1, then the conveying pipe 1 is retracted relative to the push rod 2, namely, when the conveying pipe 1 moves relative to the push rod 2 in the far-end proximal direction, the turbulent flow net 3 is gradually exposed out of the conveying pipe 1, the second opening 5 is firstly radially expanded to be attached to the inner wall of the aneurysm, when the turbulent flow net 3 and the release structure 6 are completely exposed out of the conveying pipe 1, the release structure 6 is sprung out towards one side away from the push rod 2 under the self elastic action due to the fact that the release structure is not restrained by the conveying pipe 1, namely, the release structure is not clamped with the self-closing piece 7, at the moment, the turbulent flow net 3 is released and is completely converted from a compressed state to an expanded state, the self-closing piece 7 is not clamped with the release structure 6 and then is closed towards the center of the turbulent flow net 3, the push rod 2 is attached to the outer wall of the push rod 2, and then the push rod 2 is retracted, namely, when the push rod 2 moves in the far-end proximal direction, the release structure 6 is completely exposed out of the conveying pipe 1, the release structure 6 is sprung out of the self-closing piece 7 towards one side, namely, the side of the side away from the side of the push rod 2 towards one side, facing the side of the push rod 2, namely, the self-closing piece 7 is clamped with the self-closing piece 7, namely, the self-closing piece 7, the first opening to be clamped with the turbulent flow net 3, and the opening 4, and the opening is formed.
In the use process, when the turbulent flow net 3 and the self-closing sheet 7 are not completely exposed out of the conveying pipe 1, the release position of the turbulent flow net 3 is found to be wrong, and then the pushing rod 2 can be operated to move along the far end to the near end direction relative to the conveying pipe 1, and the pushing rod 2 can drive the turbulent flow net 3 to retract into the conveying pipe 1 through the limit connection of the release structure 6 to the turbulent flow net 3.
It will be appreciated that although the invention has been described above in terms of preferred embodiments, the above embodiments are not intended to limit the invention. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art without departing from the scope of the technology, or the technology can be modified to be equivalent. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (7)
1. An aneurysm turbulence device easy to release, comprising a conveying pipe (1), a pushing rod (2) and a turbulence net (3) which are positioned in the conveying pipe (1), wherein the conveying pipe (1) is used for conveying the pushing rod (2) and the turbulence net (3) into an aneurysm, and the turbulence net (3) is provided with a compressed state compressed on the pushing rod (2) and an expanded state expanded in the aneurysm, and is characterized in that the pushing rod (2) is provided with a release structure (6), the release structure (6) is positioned in the conveying pipe (1) and is in limit connection with the turbulence net (3) in the initial state so as to limit the turbulence net (3) on the pushing rod (2), and when the conveying pipe (1) is retracted relative to the pushing rod (2) so that the release structure (6) is exposed in the conveying pipe (1), the release structure (6) is deformed and is disconnected with the turbulence net (3) so as to release the turbulence net (3);
the vortex net (3) has the first opening (4) of independently radial shrink and the second opening (5) of independently radial expansion, trip structure (6) is the trip piece, under the initial state, the trip piece is located conveyer pipe (1), and trip piece and the inner wall inseparable laminating of conveyer pipe (1) and with vortex net (3) joint, the trip piece exposes behind conveyer pipe (1), the trip piece is opened in order no longer to with vortex net (3) joint towards one side that deviates from push rod (2), first opening (4) are fixed with can with trip piece joint self-closing piece (7), when trip piece did not expose in conveyer pipe (1) completely, push rod (2) can drive the withdrawal of vortex net (3) through trip piece and self-closing piece (7) joint effect, trip piece and self-closing piece (7) all set up to a plurality of, self-closing piece (7) joint is between two adjacent trip pieces, self-closing piece (7) and trip piece are not closed with the centre of moving towards vortex net (3) after the trip piece joint.
2. The aneurysm turbulence device according to claim 1, wherein the release tab is located at the proximal end of the turbulence net (3).
3. The aneurysm turbulence device according to claim 1, wherein the release tabs are formed in a T-shape, and a concave-shaped clamping groove (8) is formed between two adjacent release tabs, and the self-closing tab (7) is clamped in the clamping groove.
4. An aneurysm turbulence device according to claim 3, wherein the self-closing tab (7) is formed in an inverted T-shape, the inverted T-shape self-closing tab (7) being mutually engaged with the engagement groove (8).
5. The aneurysm turbulence device according to claim 1, wherein the released turbulence net (3) is gradually unfolded and formed in a cone shape.
6. The aneurysm turbulence device according to claim 5, wherein the plurality of self-closing tabs (7) are circumferentially distributed along the inner circumference of the first opening (4), and wherein after the turbulence net (3) is released, the second opening (5) of the turbulence net (3) radially expands to engage the inner wall of the aneurysm, and the first opening (4) of the turbulence net (3) radially contracts and is closed by the plurality of self-closing tabs (7).
7. The aneurysm turbulence device of claim 6 wherein the plurality of self-closing tabs (7) are first attached to the outer wall of the push rod (2) and autonomously close the first opening (4) of the turbulence net (3) after withdrawal of the push rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124879.6A CN116831679B (en) | 2023-09-02 | 2023-09-02 | Aneurysm vortex device easy to release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311124879.6A CN116831679B (en) | 2023-09-02 | 2023-09-02 | Aneurysm vortex device easy to release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116831679A CN116831679A (en) | 2023-10-03 |
| CN116831679B true CN116831679B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311124879.6A Active CN116831679B (en) | 2023-09-02 | 2023-09-02 | Aneurysm vortex device easy to release |
Country Status (1)
| Country | Link |
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| CN (1) | CN116831679B (en) |
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| US20230380840A9 (en) * | 2019-05-25 | 2023-11-30 | Galaxy Therapeutics, Inc. | Systems and methods for treating aneurysms |
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| JP2003265620A (en) * | 2002-03-19 | 2003-09-24 | Terumo Corp | Stent |
| CN101094614A (en) * | 2004-06-03 | 2007-12-26 | 诺里蒂恩·弗里德 | Luminal endoprosthesis for the occlusion of an aneurysm and method of manufacturing such an endoprosthesis |
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| CN109984800A (en) * | 2017-12-22 | 2019-07-09 | 德普伊新特斯产品公司 | Aneurysm devices and delivery system |
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| CN111528956A (en) * | 2020-05-08 | 2020-08-14 | 上海申淇医疗科技有限公司 | Releasable spring ring |
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| Publication number | Publication date |
|---|---|
| CN116831679A (en) | 2023-10-03 |
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