CN112401946B - Elastic plugging device structure for extracardiac operation - Google Patents
Elastic plugging device structure for extracardiac operation Download PDFInfo
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- CN112401946B CN112401946B CN202011327129.5A CN202011327129A CN112401946B CN 112401946 B CN112401946 B CN 112401946B CN 202011327129 A CN202011327129 A CN 202011327129A CN 112401946 B CN112401946 B CN 112401946B
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- occluder
- elastic
- guide tube
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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
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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
- 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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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses an elastic occluder structure for an extracardiac operation, which comprises an occluder catheter and a guide tube, wherein a position of the guide tube corresponding to a double-hole type heart septal defect is provided with a side hole, a bottom plate is fixed on the inner side wall of the guide tube, two mounting holes are arranged on the bottom plate corresponding to the two side holes, a fixed rod is fixed in each mounting hole, an elastic contraction device is wound and fixed outside the fixed rod, when the occluder catheter carries the occluder structure to penetrate through the inlet end of a first channel, the occluder structure can penetrate out from the side hole above the elastic contraction device along a guide groove of the elastic contraction device and is placed at a corresponding heart gap, a pull rod is arranged in a second channel, and when the pull rod is pulled out of the guide tube, the two elastic contraction devices are pulled to be tightened into the second channel, so that a guide channel enclosed between the guide groove of the elastic contraction device in the first channel and the inner wall of the guide tube is enlarged, and the occluder catheter can pass through.
Description
Technical Field
The invention relates to the technical field of auxiliary medical instruments for an extracardiac operation, in particular to an elastic occluder structure for the extracardiac operation.
Background
The heart septal defect, including atrial septal defect, ventricular septal defect, and patent ductus arteriosus are a group of common congenital heart diseases, when the previous interventional therapy methods are not developed, the diseases need to be subjected to surgical thoracotomy and open heart operation, the injury to patients is large, the cost is high, but the early interventional therapy has many defects, since the last 90 century, mushroom umbrella-shaped, bottle plug-shaped and double-disc-shaped occluders which are made of memory alloy wires and invented by an American radiologist, the American Amplatzer well overcome most of the defects of the previous interventional therapy methods, but the operation needs to use large-scale X-ray influencing equipment, and the defects are difficult and easy to cause complications through long-distance complex operation in peripheral blood vessels. The invention discloses a cardiac surgical occluder conveying system, which not only requires a doctor to have certain experience, but also needs more other interventional devices, and in order to simplify the operation difficulty, the invention patent with the patent number of 200610090704.8 and the name of 'a cardiac surgical occluder conveying system' proposes that the system can be used for enabling a cardiac surgeon to directly convey an occluder into a focus part to carry out occlusion treatment by puncturing the body surface part; however, when a patient has double-hole type heart septal defect, the problem of guiding and positioning of a plurality of affected parts cannot be well solved, and therefore, an elastic occluder structure for extracardiac operation and a using method thereof are provided.
Disclosure of Invention
The invention aims to provide an elastic stopper structure for an extracardiac operation and a using method thereof, which can realize the blocking of double-hole congenital atrial septal defect and ventricular septal defect in the operation, realize the steering problem of the blocking and solve the problem of guiding and positioning of a plurality of affected parts.
In order to achieve the purpose, the invention provides the following technical scheme: an elastic occluder structure for an extracardiac operation comprises an occluder catheter and a guide tube, wherein two side holes with mutually parallel axes are arranged at the position of one side of the guide tube corresponding to a double-hole type heart septal defect;
two mounting holes are formed in the bottom plate corresponding to the two side holes, a fixed rod is fixed in each mounting hole, an elastic contraction device is wound and fixed outside each fixed rod, a guide groove corresponding to the side hole above the elastic contraction device is formed in the outer ring of each elastic contraction device, and when the occluder catheter carries the occluder to penetrate through the inlet end of the first channel, the occluder touches the elastic contraction device and can turn upwards along the guide groove to penetrate through the side hole above the elastic contraction device and is placed at the corresponding heart gap;
and a pull rod is arranged in the second channel, one end of the pull rod penetrates out of the guide pipe, the other end of the pull rod is fixedly provided with two cross rods, the two cross rods sequentially hook the two elastic contraction devices, when the pull rod outwards pulls out the guide pipe, the two elastic contraction devices are pulled to be tightened in the second channel, so that a guide channel enclosed between a guide groove of the elastic contraction device in the first channel and the inner wall of the guide pipe is enlarged, and the catheter of the plugging device can pass through.
Preferably, the elastic contraction device is a torsion spring, the torsion spring comprises an elastic section and a solid section, the solid section is located at the outer end of the elastic structure, and a gap is reserved between two end faces of the torsion spring and the side wall of the mounting hole.
Preferably, the outer side wall of the torsion spring is provided with an arc-shaped guide groove along the length direction of the torsion spring.
Preferably, two cross rods are fixed on the side wall of the pull rod corresponding to the two torsion springs and used for penetrating the torsion springs and hooking the solid sections at the outer end parts of the torsion springs.
Preferably, the occluder catheter is of a hose structure.
Preferably, the mounting hole is provided with an elastic membrane, and the torsion spring pushes the elastic membrane to the first channel.
A double-hole type heart septal defect plugging method comprises the following steps:
firstly, finding a proper position to place a guide tube through ultrasonic detection, and aligning two side apertures on the guide tube with two notch positions of a heart;
the second step is that: placing a first set of occluder on an occluder catheter, then inserting one end of the occluder catheter, which is provided with the occluder, from the inlet end of a first channel of a guide tube, turning along a guide groove on the outer side wall of a first torsion spring when the first set of occluder touches the first torsion spring, penetrating out of a side hole above the first torsion spring, and placing the first set of occluder at a corresponding first heart gap;
the third step: when a second set of occluder is required to be fed into a second heart gap, the pull rod is horizontally pulled outwards, the pull rod pulls the torsion spring through the cross rod, the elastic section of the torsion spring is tightly wound on the fixed rod, and part of the elastic section is pulled into the second channel below the bottom plate, so that the guide channel enclosed between the guide groove of the torsion spring in the first channel and the inner wall of the guide pipe is enlarged, meanwhile, the occluder catheter presses down the first torsion spring, so that the occluder catheter can pass through the first torsion spring, and meanwhile, the guide groove outside the first torsion spring can guide the occluder catheter;
the fourth step: before the second set of occluder touches the second torsion spring, the pull rod is loosened to enable the second torsion spring to restore the initial state under the self elasticity, at the moment, the guide groove on the outer side wall of the first torsion spring can still play a role in guiding the occluder catheter, when the second set of occluder touches the second torsion spring, the second torsion spring can turn along the guide groove on the outer side wall of the torsion spring, the second torsion spring penetrates out of the side opening above the second torsion spring and is placed at the corresponding second heart gap position, and the occlusion of the double-hole type heart septal defect is completed.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has compact and ingenious structure, can realize the plugging of the double-hole congenital heart atrial septal defect and the ventricular septal defect in the operation, realize the steering problem of the plugging, solve the problem of the guiding and positioning of a plurality of affected parts, and can assist doctors to complete the operation more conveniently;
2. the plugging method is simpler, can quickly complete the plugging of the double-hole type heart septal defect, reduces the time required by the operation and reduces the risk of the operation.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of an elastic retractor according to the present invention;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a schematic view of the structure of the pull rod of the present invention;
in the figure: 1-guide tube, 2-occluder conduit, 3-bottom plate, 4-side opening, 5-occluder, 6-pull rod, 7-cross rod, 8-fixed rod, 9-mounting hole, 10-torsion spring, 101-elastic section, 102-solid section and 103-guide groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an elastic occluder catheter structure for extracardiac surgery comprises an occluder catheter 2 and a guide tube 1, wherein two side holes 4 with mutually parallel axes are arranged at a position, corresponding to a double-hole type heart septal defect, on one side of the guide tube 1, a bottom plate 3 is fixed on the inner side wall of the guide tube 1, the axes of the side holes 4 are perpendicular to the bottom plate 3, one surface of the bottom plate 3, which is close to the side holes 4, and the inner wall of the guide tube 1 enclose a first channel, and the other surface and the inner wall of the guide tube 1 enclose a second channel;
two mounting holes 9 are formed in the bottom plate 3 corresponding to the two side holes 4, a fixing rod 8 is fixed in each mounting hole 9, an elastic contraction device is wound and fixed outside each fixing rod 8, a guide groove 103 corresponding to the side hole 4 above each elastic contraction device is formed in the outer ring of each elastic contraction device, and when the occluder catheter 2 with the occluder 5 penetrates through the inlet end of the first channel, the occluder 5 can turn upwards along the guide groove 103 to penetrate through the side hole 4 above the elastic contraction device and is placed at the corresponding heart gap;
the draw bar 6 is arranged in the second channel, one end of the draw bar 6 penetrates out of the guide tube 1, the other end of the draw bar 7 is fixed with two cross bars 7, the two cross bars 7 sequentially hook the two elastic contraction devices, when the draw bar 6 outwards pulls out the guide tube 1, the two elastic contraction devices are pulled to be tightened in the second channel, so that a guide channel formed by surrounding between the guide groove 103 of the elastic contraction device in the first channel and the inner wall of the guide tube 1 is enlarged, and the occluder guide tube 2 can pass through.
Specifically, the elastic contraction device is a torsion spring 10, the torsion spring 10 includes an elastic section 101 and a solid section 102, the solid section 102 is located at an outer end of the elastic section 101, and a gap is left between two end faces of the torsion spring 10 and a side wall of the mounting hole 9.
Specifically, the outer side wall of the torsion spring 10 is provided with an arc-shaped guide groove 103 along the length direction thereof.
Specifically, two cross bars 7 are fixed on the side wall of the pull rod 6 at positions corresponding to the two torsion springs 10, and are used for penetrating the torsion springs 10 and hooking the shape fixing sections 102 at the outer ends of the torsion springs 10. Two cross rods 7 are fixed on the side wall of the pull rod 6 corresponding to the two torsion springs 10 and used for penetrating the torsion springs 10 and hooking the outer end parts of the torsion springs 10.
In particular, the occluder catheter 2 is of a flexible tube construction.
Specifically, an elastic membrane is arranged at the mounting hole 9, the elastic membrane closes and separates the first channel from the second channel, and the torsion spring 10 pushes the elastic membrane to the first channel.
A double-hole type heart septal defect plugging method comprises the following steps:
firstly, finding a proper position to place a guide tube 1 through ultrasonic detection, and aligning two side openings 4 on the guide tube 1 with two notch positions of a heart;
the second step: a first set of occluder 5 is placed on a catheter of an occluder catheter 2, then one end of the occluder catheter 2, which is provided with the occluder 5, is inserted from the inlet end of a first channel of a guide tube 1, when the first set of occluder 5 touches a first torsion spring 10, the first set of occluder can turn along a guide groove 103 on the outer side wall of the torsion spring 10, and penetrates out of a side hole 4 above the first set of occluder and is placed at the corresponding first heart gap;
the third step: when a second set of occluder 5 needs to be fed into a second heart gap, the pull rod 6 is pulled horizontally outwards, the pull rod 6 pulls the torsion spring 10 through the cross rod 7, the elastic section 101 of the torsion spring 10 is tightly wound on the fixed rod 8 and part of the elastic section 101 is pulled into a second channel below the bottom plate 3, a guide channel enclosed between a guide groove 103 of the torsion spring 10 in the first channel and the inner wall of the guide tube 1 is enlarged, meanwhile, the catheter of the occluder catheter 2 also presses down the first torsion spring 10, so that the catheter of the occluder catheter 2 can pass through the first torsion spring 10, and meanwhile, the guide groove 103 outside the first torsion spring 10 can guide the occluder catheter 2;
the fourth step: before the second set of occluder 5 touches the second torsion spring 10, the pull rod 6 is loosened to enable the second torsion spring 10 to restore the initial state under the self elasticity, at the moment, the guide groove 103 on the outer side wall of the first torsion spring 10 can still play a role in guiding the occluder catheter 2, when the second set of occluder 5 touches the second torsion spring 10, the guide groove 103 on the outer side wall of the torsion spring 10 can turn, penetrate out of the side opening 4 above the guide groove and are placed at the corresponding second heart gap position, and the double-hole type heart septal defect occlusion is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an extracardiac surgery is with elasticity occluder pipe structure, includes occluder pipe (2) and guide tube (1), its characterized in that: two side holes (4) with mutually parallel axes are formed in the position, corresponding to the double-hole type heart septal defect, of one side of the guide tube (1), a bottom plate (3) is fixed on the inner side wall of the guide tube (1), the axes of the side holes (4) are perpendicular to the bottom plate (3), one surface, close to the side holes (4), of the bottom plate (3) and the inner wall of the guide tube (1) enclose a first channel, and the other surface and the inner wall of the guide tube (1) enclose a second channel;
two mounting holes (9) are formed in the bottom plate (3) corresponding to the two side holes (4), a fixing rod (8) is fixed in each mounting hole (9), an elastic contraction device is fixedly wound outside the fixing rod (8), a guide groove (103) corresponding to the side hole (4) above the elastic contraction device is formed in the outer ring of each elastic contraction device, and when the occluder catheter (2) with the occluder (5) penetrates through the inlet end of the first channel, the occluder (5) can upwards turn along the guide groove (103) to penetrate through the side hole (4) above the elastic contraction device and is placed at the corresponding heart gap;
be provided with pull rod (6) in the second passageway, the one end of pull rod (6) is worn out in following guide tube (1), and the other end is fixed with two horizontal poles (7), and two elastic shrinkage devices are caught on in proper order to two horizontal poles (7), and when pull rod (6) outwards pulled out guide tube (1), pull two elastic shrinkage devices and tighten up in to the second passageway, make the direction passageway grow that encloses between guide way (103) of elastic shrinkage device and guide tube (1) inner wall in the first passageway, make occluder pipe (2) can pass through.
2. The structure of an elastic occluder catheter for extra-cardiac surgery according to claim 1, wherein: the elastic contraction device is a torsion spring (10), the torsion spring (10) comprises an elastic section (101) and a solid section (102), the solid section (102) is located at the outer end of the elastic structure, and gaps are reserved between two end faces of the torsion spring (10) and the side walls of the mounting holes (9).
3. The structure of an elastic occluder catheter for extra-cardiac surgery according to claim 2, wherein: the outer side wall of the torsion spring (10) is provided with an arc-shaped guide groove (103) along the length direction.
4. The structure of an elastic occluder catheter for extra-cardiac surgery according to claim 2, wherein: two cross rods (7) are fixed on the side wall of the pull rod (6) corresponding to the two torsion springs (10) and used for penetrating the torsion springs (10) and hooking the solid sections (102) at the outer end parts of the torsion springs (10).
5. The structure of an elastic occluder catheter for extra-cardiac surgery according to claim 1, wherein: the occluder conduit (2) is of a hose structure.
6. The structure of an elastic occluder catheter for extra-cardiac surgery according to claim 2, wherein: an elastic film is arranged at the mounting hole (9), and the torsion spring (10) pushes the elastic film to the first channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327129.5A CN112401946B (en) | 2020-11-24 | 2020-11-24 | Elastic plugging device structure for extracardiac operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327129.5A CN112401946B (en) | 2020-11-24 | 2020-11-24 | Elastic plugging device structure for extracardiac operation |
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| Publication Number | Publication Date |
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| CN112401946A CN112401946A (en) | 2021-02-26 |
| CN112401946B true CN112401946B (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011327129.5A Active CN112401946B (en) | 2020-11-24 | 2020-11-24 | Elastic plugging device structure for extracardiac operation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114000521A (en) * | 2021-11-29 | 2022-02-01 | 徐科娜 | Slope reinforcing device for building municipal civil engineering |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995028885A1 (en) * | 1994-04-22 | 1995-11-02 | Sideris-Messini, Chrysoula | Adjustable devices for the occlusion of cardiac defects |
| CN103654883A (en) * | 2013-12-06 | 2014-03-26 | 先健科技(深圳)有限公司 | Plugging device with locking mechanism |
| CN110974316A (en) * | 2019-11-19 | 2020-04-10 | 先健科技(深圳)有限公司 | Plugging device |
| CN211611000U (en) * | 2019-12-02 | 2020-10-02 | 李建朝 | Bipolar femoral venous cannula for simply exposing right heart system in cardiac surgery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150305727A1 (en) * | 2014-04-25 | 2015-10-29 | The Cleveland Clinic Foundation | Kits and methods for visualizing a cardiac chamber for connection to a mechanical circulatory support device |
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- 2020-11-24 CN CN202011327129.5A patent/CN112401946B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995028885A1 (en) * | 1994-04-22 | 1995-11-02 | Sideris-Messini, Chrysoula | Adjustable devices for the occlusion of cardiac defects |
| CN103654883A (en) * | 2013-12-06 | 2014-03-26 | 先健科技(深圳)有限公司 | Plugging device with locking mechanism |
| CN110974316A (en) * | 2019-11-19 | 2020-04-10 | 先健科技(深圳)有限公司 | Plugging device |
| CN211611000U (en) * | 2019-12-02 | 2020-10-02 | 李建朝 | Bipolar femoral venous cannula for simply exposing right heart system in cardiac surgery |
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| CN112401946A (en) | 2021-02-26 |
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