CN112315519A - Root tissue ligation device - Google Patents
Root tissue ligation device Download PDFInfo
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- CN112315519A CN112315519A CN202011144531.XA CN202011144531A CN112315519A CN 112315519 A CN112315519 A CN 112315519A CN 202011144531 A CN202011144531 A CN 202011144531A CN 112315519 A CN112315519 A CN 112315519A
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- 230000007246 mechanism Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 208000006011 Stroke Diseases 0.000 description 11
- 206010003658 Atrial Fibrillation Diseases 0.000 description 10
- 210000005248 left atrial appendage Anatomy 0.000 description 10
- 210000001519 tissue Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000010100 anticoagulation Effects 0.000 description 6
- 238000002560 therapeutic procedure Methods 0.000 description 6
- 206010008190 Cerebrovascular accident Diseases 0.000 description 3
- 239000003146 anticoagulant agent Substances 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000008733 trauma Effects 0.000 description 3
- 208000005189 Embolism Diseases 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 229940127219 anticoagulant drug Drugs 0.000 description 2
- 208000034158 bleeding Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000007675 cardiac surgery Methods 0.000 description 2
- 230000002490 cerebral effect Effects 0.000 description 2
- 208000026106 cerebrovascular disease Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010018833 Haematocoele Diseases 0.000 description 1
- 208000005873 Hematocele Diseases 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000001746 atrial effect Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 230000001269 cardiogenic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 201000004920 hematocele of tunica vaginalis testis Diseases 0.000 description 1
- 210000004971 interatrial septum Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000003516 pericardium Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000004804 winding Methods 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
- 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
- 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)
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- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention relates to a root tissue ligation device which comprises a telescopic assembly, a ligation assembly and a thread take-up rod, wherein the ligation assembly comprises a ligation sleeve, a ligation thread, a positioning bolt and a knot pusher, the positioning bolt is arranged at the front end of the telescopic assembly, the telescopic assembly is telescopic in length, the front end of the ligation sleeve is annularly arranged, two ends of the ligation sleeve are fixed at the front end of the positioning bolt, a ligation thread fixing groove is formed in the inner side of the ligation sleeve, one end of the ligation thread is wound in the middle of the ligation thread to form an upper hanging knot, the front end of the ligation thread is wound to form a loop, the loop is arranged in the ligation thread fixing groove, the rear end of the ligation thread penetrates through the positioning bolt to be connected with one end of the thread take-up rod, the thread take-up rod is arranged in the telescopic assembly, and the other end of the thread take-up. The invention has simple structure and low manufacturing cost, and can ligate root tissues (such as auricles) with small wound surface and low risk.
Description
Technical Field
The invention relates to a root tissue ligation device.
Background
Atrial fibrillation (abbreviated as atrial fibrillation or AF) is one of the most common clinical arrhythmias. The research at home and abroad shows that: the total incidence of atrial fibrillation in a population is 0.89%. And 16% -21.5% of cerebral apoplexy (stroke is also called stroke or cerebrovascular accident, is a group of acute cerebrovascular diseases which have sudden onset and are characterized by focal nerve dysfunction) is caused by thrombus shedding caused by atrial fibrillation, and the cerebral apoplexy caused by non-valvular ward fibrillation accounts for 50% -67.1% of cardiogenic stroke cases. The annual stroke incidence rate of patients with atrial fibrillation is more than 4 percent; the death rate and disability rate caused by stroke can reach about 50 percent. Therefore, the method has important clinical significance for preventing atrial fibrillation and stroke.
Anticoagulation therapy is currently the standard method for preventing atrial fibrillation stroke complications, but anticoagulation therapy has certain limitations, for example, some patients cannot be anticoagulated due to anticoagulation contraindication or relative contraindication, or the anticoagulation agent is easily affected by drugs and foods, so that detection trouble is increased, and some patients cannot persist in anticoagulation therapy for a long time. In addition, anticoagulant therapy itself has bleeding complications that reduce the long-term anticoagulation rate of patients and limit the effectiveness of anticoagulant therapy. Therefore, the method has important significance for preventing atrial fibrillation and stroke by adopting more effective and safe measures.
The current procedure for left atrial appendage occlusion using medical interventional therapy is also well developed and the treatment technique is a good choice for patients with severe bleeding and patients with anticoagulation contraindications. Two types of left atrial appendage occlusion are commonly used: one is the use of a percutaneous left atrial appendage transconductor occlusion device (PLAATO) to occlude the left atrial appendage, commonly known as Apriva Medical; the other method is to use an Amplezer interatrial septum plugging umbrella to plug the left auricle. The method for plugging the left atrial appendage by using the PLAATO device is firstly advocated due to the advantages of small surgical trauma, high success rate, low incidence rate of thromboembolism and the like, but the surgical complication, namely the incidence rate of pericardium hematocele is high, and the incidence rate is about 6.9 percent at present, so the structure design of the device is further improved and the surgical experience is accumulated. With respect to amplezer occlusion umbrellas, many experts have considered that they are not suitable LAA (percutaneous left atrial appendage closure) occlusion devices, which are not designed specifically for LAA occlusion but for atrial defects, and thus have considered that left atrial appendage occlusion surgery is not a trivial task if no suitable device is available.
Cardiac surgery to simultaneously remove or seal the left atrial appendage is straightforward, and thus many physicians claim that such patients require cardiac surgery to simultaneously remove or seal the left atrial appendage. However, the surgical trauma is large for cutting or sealing the left atrial appendage only, and surgical intervention is not feasible. Odell (Odall) and the like report the technology for preventing atrial fibrillation embolism by closing the left auricle through a thoracoscope in 1996, and the thoracoscope closing of the left auricle is widely concerned due to the fact that the trauma and the risk of the operation are greatly reduced. If the left auricle sealing effect in the technology can be further improved, the thoracoscopic sealed left auricle atrial fibrillation prevention plug has good application prospect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a root tissue ligation device.
In order to solve the technical problems, the invention adopts the following technical scheme:
a root tissue ligation device comprises a telescopic assembly, a ligation assembly and a thread take-up rod, wherein the ligation assembly comprises a ligation sleeve, a ligation thread, a positioning bolt and a knot pusher, the positioning bolt is arranged at the front end of the telescopic assembly, the telescopic assembly is telescopic in length, the front end of the ligation sleeve is annularly arranged, two ends of the ligation sleeve are fixed at the front end of the positioning bolt, a ligation thread fixing groove is formed in the inner side of the ligation sleeve, one end of the ligation thread is wound in the middle of the ligation thread to form an upper hanging knot, the front end of the ligation thread is wound to form a loop, the loop is arranged in the ligation thread fixing groove, the rear end of the ligation thread penetrates through the positioning bolt to be connected with one end of the thread take-up rod, and the thread take-up rod is slidably arranged in the telescopic assembly;
the knot pusher comprises a cylindrical sleeve and a push rod, the cylindrical sleeve is arranged on the outer side of the ligature in a wrapping mode and located at the rear end of the upper hanging knot, the front end of the push rod is connected with the cylindrical sleeve, the rear end of the push rod penetrates through the positioning bolt, and the push rod is used for pushing the cylindrical sleeve to enable the upper hanging knot to move towards the front end so as to tighten the loop.
Furthermore, the telescopic assembly comprises an outer sleeve and an inner sleeve, the outer sleeve is arranged outside the inner sleeve in a coated mode, the inner sleeve can slide along the outer sleeve, and the positioning bolt is arranged at the front end of the inner sleeve.
Furthermore, the cross-sectional shape of outer tube is the U-shaped, the interior sleeve pipe outside is provided with the spout, U type outer tube inboard is provided with the arch with spout complex, can slide along interior sleeve pipe outside parallel in the outer tube.
Furthermore, the rear end of the inner sleeve is provided with a rear positioning bolt, the rear ends of the wire collecting rod and the knot pusher penetrate through the rear positioning bolt, and the wire collecting rod and the knot pusher can slide along the rear positioning bolt.
Furthermore, the bottom of the outer sleeve is provided with a handle, the side surface of the outer sleeve is provided with a square through hole, and the handle is provided with a trigger which is used for clamping the inner sleeve so that the inner sleeve cannot slide in the outer sleeve.
Further, the middle part of push rod is provided with first piston, the intraductal first piston groove that is located of endotheca is provided with along the axis direction of push rod in the first piston outside, first piston sets up in first piston groove, the one end that ligature was kept away from to the receipts line pole is provided with the second piston, interior sleeve pipe is located the second piston outside and is provided with the second piston groove along the axis direction of receipts line pole, the second piston sets up in the second piston inslot, first piston groove is connected with the one end of second piston groove syntropy, and when the knot front end removed in the promotion of knot pusher, first piston moved forward in first piston inslot and promoted the second piston and removed in second piston inslot direction, made to receive line pole pulling ligature rear end reverse movement.
Furthermore, a groove is vertically formed in the middle of the cylinder sleeve, a blade is arranged in the groove, and moving mechanisms are arranged on two sides of the blade and used for driving the blade to move so as to cut off the ligature.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:
the invention has simple structure and low manufacturing cost, and can ligate root tissues (such as auricles) with small wound surface and low risk.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of an outer sleeve;
FIG. 4 is a schematic perspective view of another embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of another embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of another embodiment of an outer sleeve;
FIG. 7 is a schematic perspective view of another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of another embodiment of the present invention;
FIG. 9 is a schematic sectional view of the cylinder jacket;
FIG. 10 is a state diagram of the present invention in use;
FIG. 11 is a state diagram of the present invention in use;
fig. 12 is a schematic view after ligation of root tissue.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a telescoping assembly; 11. an outer sleeve; 111. a square through hole; 12. an inner sleeve; 121. a chute; 13. a handle; 131. a trigger; 2. a ligation assembly; 21. ligating sleeves; 211. a ligature fixing groove; 22. tying a wire; 221. hanging the knot; 23. positioning bolts; 24. a knot pusher; 241. a cylindrical sleeve; 242. a push rod; 243. a first piston; 244. a first piston groove; 245. a blade; 246. a moving mechanism; 25. a rear positioning bolt; 3. a wire take-up rod; 31. a second piston; 32. a second piston groove.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Embodiment 1, as shown in fig. 1 and 2, a root tissue ligation device includes a telescopic assembly 1, a ligation assembly 2, and a wire take-up rod 3, where the ligation assembly 2 includes a ligation sleeve 21, a ligation wire 22, a positioning bolt 23, and a knot pusher 24, the positioning bolt 23 is disposed at a front end of a telescopic end of the telescopic assembly 1, the telescopic assembly 1 is telescopic in length, the front end of the ligation sleeve 21 is annularly disposed and both ends of the ligation sleeve are fixed to a front end of the positioning bolt 23, a ligation wire fixing groove 211 is disposed on an inner side of the ligation sleeve 21, as shown in fig. 3, a cross-sectional shape of the ligation wire fixing groove 211 is circular, an axis of the ligation wire fixing groove is located below an axis of the ligation sleeve 21, one end of the ligation wire 22 is wound at a middle portion of the ligation wire 22 to form an upper knot 221, so that a front end of the ligation wire 22 surrounds and forms a loop, the loop is disposed in the ligation wire fixing groove 211, the rear end of the ligature 22 penetrates through the positioning bolt 23 to be connected with one end of the wire take-up rod 3, the wire take-up rod 3 is arranged in the telescopic assembly 1, the other end of the wire take-up rod 3 is exposed out of the inner sleeve 12, and the knot pusher 24 is slidably arranged in the positioning bolt 23 and used for pushing the upper hanging knot 221 to enable the loop to be bundled and separated from the ligature fixing groove 211.
Embodiment 2, as shown in fig. 4 and 5, a root tissue ligation device includes a telescopic assembly 1, a ligation assembly 2, and a wire take-up rod 3, wherein the ligation assembly 2 includes a ligation sleeve 21, a ligation wire 22, a positioning bolt 23, and a knot pusher 24, the positioning bolt 23 is disposed at a front end of a telescopic end of the telescopic assembly 1, the telescopic assembly 1 is telescopic in length, a front end of the ligation sleeve 21 is annularly disposed and both ends of the ligation sleeve 21 are fixed to a front end of the positioning bolt 23, a ligation wire fixing groove 211 is disposed at an inner side of the ligation sleeve 21, as shown in fig. 6, a cross-sectional shape of the ligation wire fixing groove 211 is circular, an axis of the ligation wire fixing groove 211 and an axis of the ligation sleeve 21 are disposed on the same horizontal plane, one end of the ligation wire 22 is wound at a middle portion of the ligation wire 22 to form an upper knot 221, so that a front end of the ligation wire 22 forms a loop around, and the loop is disposed in the ligation wire fixing, the rear end of the ligature 22 penetrates through the positioning bolt 23 to be connected with one end of the wire take-up rod 3, the wire take-up rod 3 is arranged in the telescopic assembly 1, the other end of the wire take-up rod 3 is exposed out of the inner sleeve 12, and the knot pusher 24 is slidably arranged in the positioning bolt 23 and used for pushing the upper hanging knot 221 to enable the loop to be bundled and separated from the ligature fixing groove 211.
In one embodiment, the telescopic assembly 1 includes an outer sleeve 11 and an inner sleeve 12, the outer sleeve 11 is disposed outside the inner sleeve 12, the inner sleeve 12 is slidable along the outer sleeve 11, and the positioning pin 23 is disposed at the front end of the inner sleeve 12.
In one embodiment, the cross-sectional shape of the outer sleeve 11 is a U-shape, the outer side of the inner sleeve 12 is provided with a slide groove 121, the inner side of the U-shaped outer sleeve 11 is provided with a protrusion engaged with the slide groove 121, and the inner side of the outer sleeve 11 can slide in parallel along the outer side of the inner sleeve 12.
In one embodiment, the knot pusher 24 includes a cylindrical sleeve 241 and a push rod 242, the cylindrical sleeve 241 is disposed outside the ligature 22 and located at the rear end of the upper knot 221, the front end of the push rod 242 is connected to the cylindrical sleeve 241, the rear end of the push rod 242 penetrates through the positioning pin 23, and the push rod 242 is used for pushing the cylindrical sleeve 241 to move the upper knot 221 to the front end to tighten the loop.
In one embodiment, the rear end of the inner sleeve 12 is provided with a rear positioning bolt 25, the rear ends of the thread take-up rod 3 and the knot pusher 24 penetrate through the rear positioning bolt 25, and the thread take-up rod 3 and the knot pusher 24 can slide along the rear positioning bolt 25.
The rear ends of the wire take-up rod 3 and the push rod 242 are handheld ends, and anti-skid grains are arranged on the outer sides of the handheld ends of the wire take-up rod 3 and the push rod 242.
As shown in fig. 7, as an embodiment, a handle 13 is disposed at the bottom of the outer sleeve 11, a square through hole 111 is disposed at the side surface of the outer sleeve 11, and a trigger 131 for locking the inner sleeve 12 so that the inner sleeve 12 cannot slide in the outer sleeve 11 is disposed on the handle 13; in this embodiment, the top of the trigger 131 is provided with a rubber sleeve, the middle of the trigger 131 is provided with a torque spring, the torque spring increases the elastic force to make the rubber sleeve at the top of the trigger 131 tightly attached to the lower end surface of the inner sleeve 12, and the rubber sleeve blocks the inner sleeve 12 from sliding in the outer sleeve 11;
in use, a user presses the trigger 131 to rotate the trigger while the rubber sleeve at the top of the trigger is moved away from the lower end face of the inner sleeve, and the thumb is used to slide the inner sleeve in the area of the directional through hole.
As shown in fig. 8, as an embodiment, a first piston 243 is provided at a middle portion of the push rod 242, a first piston groove 244 is provided in the inner sleeve 12 outside the first piston 243 in the axial direction of the push rod 242, the first piston 243 is disposed in the first piston groove 244, the end of the wire take-up rod 3 away from the ligature 22 is disposed with the second piston 31, the inner sleeve 12 is provided with a second piston groove 32 along the axial direction of the wire take-up rod 3 at the outer side of the second piston 31, the second piston 31 is disposed in the second piston groove 32, one end of the first piston groove 244 in the same direction as the second piston groove 31 is connected, when the knot pusher 24 pushes the upper hanger 221 to move forward, the first piston 243 moves forward in the first piston groove 244 and pushes the second piston 32 to move in the second piston groove 32, so that the wire take-up rod 3 pulls the rear end of the ligature 22 to move reversely.
As shown in fig. 9, as an embodiment, a groove is vertically formed in the middle of the cylindrical sleeve 241, a blade 245 is disposed in the groove, and moving mechanisms 246 are disposed on two sides of the blade 245, and the moving mechanisms 246 are used for driving the blade 245 to move so as to cut off the ligature 22;
a push handle 2421 is arranged at the rear end of the push rod 242, the push handle 2421 is triangular in shape, a groove is formed in the side surface of the outer sleeve 11 and used for enabling the push handle 2421 to slide in the groove, a control button is arranged on the push handle 2421 and connected with a moving mechanism 246, and when a user triggers the control button, the moving mechanism drives the blade to move so as to cut off the ligature.
The using method of the invention comprises the following steps:
step 4, as shown in fig. 9, the excess ligature is cut off and the ligation device is removed.
The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144531.XA CN112315519B (en) | 2020-10-23 | 2020-10-23 | A root tissue ligation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144531.XA CN112315519B (en) | 2020-10-23 | 2020-10-23 | A root tissue ligation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112315519A true CN112315519A (en) | 2021-02-05 |
| CN112315519B CN112315519B (en) | 2025-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011144531.XA Active CN112315519B (en) | 2020-10-23 | 2020-10-23 | A root tissue ligation device |
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| Country | Link |
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| CN (1) | CN112315519B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115462856A (en) * | 2022-09-06 | 2022-12-13 | 南京鼓楼医院 | Left atrial appendage ligator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050261709A1 (en) * | 2004-05-20 | 2005-11-24 | Olympus Corporation | Treatment system for living tissues |
| US20050277959A1 (en) * | 2004-05-26 | 2005-12-15 | Idx Medical, Ltd. | Apparatus and methods for occluding a hollow anatomical structure |
| CN106880389A (en) * | 2017-03-30 | 2017-06-23 | 北京市普惠生物医学工程有限公司 | A tissue clamping system |
| CN214073411U (en) * | 2020-10-23 | 2021-08-31 | 宋来春 | Root tissue ligation device |
-
2020
- 2020-10-23 CN CN202011144531.XA patent/CN112315519B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050261709A1 (en) * | 2004-05-20 | 2005-11-24 | Olympus Corporation | Treatment system for living tissues |
| US20050277959A1 (en) * | 2004-05-26 | 2005-12-15 | Idx Medical, Ltd. | Apparatus and methods for occluding a hollow anatomical structure |
| CN106880389A (en) * | 2017-03-30 | 2017-06-23 | 北京市普惠生物医学工程有限公司 | A tissue clamping system |
| CN214073411U (en) * | 2020-10-23 | 2021-08-31 | 宋来春 | Root tissue ligation device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115462856A (en) * | 2022-09-06 | 2022-12-13 | 南京鼓楼医院 | Left atrial appendage ligator |
| WO2024051460A1 (en) * | 2022-09-06 | 2024-03-14 | 南京鼓楼医院 | Left atrial appendage ligator |
| JP2025503053A (en) * | 2022-09-06 | 2025-01-30 | 南京鼓楼医院 | Left atrial appendage ligator |
| US12239323B2 (en) | 2022-09-06 | 2025-03-04 | Nanjing Drum Tower Hospital | Left atrial appendage ligator |
| KR20250057020A (en) * | 2022-09-06 | 2025-04-28 | 난징 드럼 타워 병원 | Left atrial appendage ligation device |
| GB2636671A (en) * | 2022-09-06 | 2025-06-25 | Nanjing Drum Tower Hospital | Left atrial appendage ligator |
| KR102844937B1 (en) | 2022-09-06 | 2025-08-11 | 난징 드럼 타워 병원 | Left atrial appendage ligation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112315519B (en) | 2025-02-11 |
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