CN107280713B - Mitral valve clamping device - Google Patents
Mitral valve clamping device Download PDFInfo
- Publication number
- CN107280713B CN107280713B CN201710427977.5A CN201710427977A CN107280713B CN 107280713 B CN107280713 B CN 107280713B CN 201710427977 A CN201710427977 A CN 201710427977A CN 107280713 B CN107280713 B CN 107280713B
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- Prior art keywords
- thrombus
- net sleeve
- mitral valve
- clamping
- preventing
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- 210000004115 mitral valve Anatomy 0.000 title claims abstract description 23
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 47
- 230000002785 anti-thrombosis Effects 0.000 claims abstract description 22
- 239000003146 anticoagulant agent Substances 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 7
- 210000004204 blood vessel Anatomy 0.000 claims description 3
- 210000003709 heart valve Anatomy 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 206010027727 Mitral valve incompetence Diseases 0.000 description 8
- 210000005240 left ventricle Anatomy 0.000 description 4
- 210000005246 left atrium Anatomy 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- -1 poly-hexyl terephthalate Chemical compound 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010003658 Atrial Fibrillation Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 208000008253 Systolic Heart Failure Diseases 0.000 description 1
- 206010071436 Systolic dysfunction Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001746 atrial effect Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000003698 chordae tendineae Anatomy 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000003540 papillary muscle Anatomy 0.000 description 1
- 230000004796 pathophysiological change Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 208000002815 pulmonary hypertension Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Classifications
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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
-
- 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
- A61B2017/00584—Clips
-
- 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
- A61B2017/00646—Type of implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
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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)
- Prostheses (AREA)
Abstract
The invention provides a mitral valve binder, comprising a locking ring; also comprises a first antithrombotic net sleeve; the anti-thrombus net cover is made of memory alloy; the first thrombus-preventing net sleeve is sleeved on the locking ring. According to the mitral valve clamping device provided by the invention, the formation of thrombus is reduced by arranging the first thrombus-preventing net sleeve, and after the thrombus is formed, the first thrombus-preventing net sleeve is taken out and replaced by a new first thrombus-preventing net sleeve, so that the service life of the mitral valve clamping device is prolonged.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a mitral valve clamping device.
Background
The mitral valve is a two-piece valve located around the ostium of the left ventricle and attached to the papillary muscles by chordae tendineae, which acts to prevent blood from the left ventricle from flowing back into the left atrium. Mitral Regurgitation (MR) is a series of pathophysiological changes caused by the organic or functional changes in the mitral leaflets and their associated structures that cause poor coaptation of the anterior and posterior leaflets of the mitral valve, with blood flowing back from the left ventricle to the left atrium. Severe MR causes enlargement of the left ventricle, ultimately leading to left systolic dysfunction and heart failure, while left atrial pressure also increases due to regurgitation, easily leading to enlargement of the left atrium, atrial fibrillation and pulmonary hypertension. The MR prognosis is poor, the annual death rate of patients with symptoms but without operation is about 5 percent, and the annual death rate of 5 patients with severe heart failure reaches 60 percent. Meanwhile, MR is also one of the most common cardiac diseases. The incidence rates of people over 65 and 75 years of age were statistically 6.4% and 9.3%, respectively. With the development of economic society and the aging of population, the incidence rate of mitral regurgitation is in a state of obviously rising.
In the prior art, in order to reduce mitral regurgitation, two pieces of valves are clamped by a mitral valve clamp, so that a valve leaflet gap is changed from a large hole into two small holes, thereby reducing the mitral regurgitation. However, the surface of the mitral valve clamping device in the prior art is easy to generate thrombus, other complications are caused, and the health condition of a patient is seriously influenced.
Disclosure of Invention
In view of the above-mentioned drawbacks and problems of the prior art, an object of the present invention is to provide a mitral valve binder, which solves the technical problems that thrombus is easily generated on the surface of the existing mitral valve binder and the thrombus cannot be effectively removed.
In order to achieve the purpose, the invention provides the following technical scheme: a mitral valve binder comprising, a locking ring; also comprises a first antithrombotic net sleeve; the anti-thrombus net cover is made of memory alloy; the first thrombus-preventing net sleeve is sleeved on the locking ring.
Wherein, also include, lock lever and second antithrombosis netted cover; the second anti-thrombus net sleeve is made of memory alloy; the second thrombus-proof net sleeve is sleeved on the lock rod.
Wherein the distal end of the first anti-thrombotic mesh sleeve is connected to the distal end of the second anti-thrombotic mesh sleeve by a heart valve suture.
The locking device further comprises a first clamping part and a second clamping part, wherein the first clamping part is arranged on the locking rod, and the second clamping part is arranged on the locking ring; the lock rod is inserted into the annular hole of the lock ring to connect the first clamping part with the second clamping part.
The first clamping part is provided with two first clamping arms; the second clamping part is provided with two second clamping arms, and each first clamping arm and the corresponding second clamping arm form a group of clamps.
Wherein the unit meshes of the first antithrombotic net sleeve are circular.
According to the mitral valve clamping device provided by the invention, the formation of thrombus is reduced by arranging the first thrombus-preventing net sleeve, and after the thrombus is formed, the first thrombus-preventing net sleeve is taken out and replaced by a new first thrombus-preventing net sleeve, so that the service life of the mitral valve clamping device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structural connection of the present invention;
FIG. 2 is a schematic view of a first clamping member and a locking rod connecting structure according to the present invention;
FIG. 3 is a schematic view of a second clamping member and lock ring connection according to the present invention;
FIG. 4 is a perspective view of the first clamping member and the locking rod of the present invention;
FIG. 5 is a perspective view of a second clamping member and locking ring of the present invention;
FIG. 6 is a schematic representation of a first anti-thrombotic sleeve according to the present invention after deployment;
FIG. 7 is a schematic view of a first anti-thrombotic sleeve memory shape in accordance with the present invention;
FIG. 8 is a schematic representation of a second anti-thrombotic sleeve according to the present invention after deployment;
FIG. 9 is a schematic view of a second memory shape of the anti-thrombotic mesh cover according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood 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.
according to fig. 1-9, as an example, a mitral valve clamp comprises a first clamp part 1 and a second clamp part 2, wherein the first clamp part comprises a pair of V-shaped first clamp arms 11, and the second clamp part comprises a pair of second clamp arms 21, which are also V-shaped, wherein the included angle between the two arms of the first clamp arm is slightly larger than the included angle between the two arms of the second clamp arm (i.e. the tilt angle α of the first clamp arm is slightly smaller than the tilt angle β of the second clamp arm, α is preferably 25 degrees, β is preferably 30 degrees), the pair of first clamp arms 11 and the pair of second clamp arms 21 correspond one-to-one, and when they are closed, a mutual squeezing force is generated, thereby forming two sets of clamps for clamping a mitral valve, the first clamp part 1 is connected or integrated with a lock lever 12, the second clamp part 2 is glued or integrated with a lock ring 22, the lower surface of the first clamp arm 11 has saw-toothed protrusions 111, and the upper surface of the second clamp arm 21 also has corresponding saw-toothed protrusions, thereby enhancing the frictional force between the valve tissue and preventing the valve from slipping.
The locking rod 12 is in a square column shape, a square column-shaped annular hole 221 is formed in the locking ring 22 and is just matched with the shape of the locking rod 12, and the locking rod 12 cannot be rotated or inclined after being inserted into the locking ring 22. The locking rod 12 is further provided with an elastic insertion sheet 13, the opening direction of the elastic insertion sheet faces to the first clamping arm 11, and the distance from the fixed position of the first clamping arm 11 on the locking rod 12 is less than or equal to the axial length of the locking ring 22. During assembly, the lock rod 12 is only required to be inserted into the lock ring 22 from the rear end, the lock rod is folded when passing through the elastic inserting sheet 13, the two inserting sheets automatically pop out to clamp the lock ring 22 after passing through the elastic inserting sheet 13, so that the relative position of the lock rod 12 and the lock rod is locked, and the clamping state of the first clamping arm 11 and the second clamping arm 21 is also determined by the locking position. The elastic insert 13 can be made of elastic polymer material or elastic metal material, and in other embodiments of the present invention, the locking component can also be a spring button, or other form of detent component.
As shown in fig. 1, 6 and 7, the first antithrombotic net member 3 is made of a memory alloy material, and the initial memory shape of the first antithrombotic net member 3 is a cylindrical shape having a spiral end face. The first anti-thrombotic mesh 3 is fitted over the locking collar 22 by deployment. When the thrombus-preventing net is used, when thrombus is generated on the surface of the first thrombus-preventing net, the first thrombus-preventing net is taken out, so that the first thrombus-preventing net restores the memory shape and is taken out along a blood vessel for replacement. The inner side of the lockstitch edge of the first antithrombotic net sleeve is provided with a bulge; the outer surface of the lock ring 22 is provided with grooves, and the number of the protrusions corresponds to the number of the grooves, and the protrusions are matched with the shape of the grooves.
As shown in fig. 1, 8 and 9, the second antithrombotic net cover is made of a memory alloy material, and the initial memory shape of the second antithrombotic net cover 4 is a cylindrical shape with a spiral end face. The second thrombus-prevention net 4 is unfolded and sleeved on the lock rod 12. When the thrombus-preventing net is used, when thrombus is generated on the surface of the second thrombus-preventing net, the first thrombus-preventing net is taken out, so that the first thrombus-preventing net recovers the memory shape and is taken out along the blood vessel for replacement.
As shown in fig. 6 and 7, it is preferable that the unit cells of the first antithrombotic net member be circular to allow smooth blood flow and reduce thrombus formation.
In an alternative embodiment, as shown in fig. 1, the distal end of the first anti-thrombotic mesh 3 is connected to the distal end of the second anti-thrombotic mesh 4 by a heart valve suture 34. The suture is made of high-molecular long-chain linear poly-hexyl terephthalate, and is coated with polytetrafluoroethylene. The first thrombus-prevention net cover and the second thrombus-prevention net cover can be detached together by pulling the suture.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A mitral valve binder comprising, a locking ring; the method is characterized in that: also comprises a first antithrombotic net sleeve; the anti-thrombus net cover is made of memory alloy; the first thrombus-preventing net sleeve is sleeved on the lock ring;
the initial memory shape of the first thrombus-preventing net sleeve is a barrel shape with a spiral end face, the first thrombus-preventing net sleeve is unfolded and sleeved on the locking ring, when thrombus is generated on the surface of the first thrombus-preventing net sleeve, the first thrombus-preventing net sleeve is taken down from the locking ring, and the first thrombus-preventing net sleeve is taken out along the blood vessel after the memory shape of the first thrombus-preventing net sleeve is restored.
2. The mitral valve binder of claim 1, wherein: the anti-thrombus device also comprises a lock rod and a second anti-thrombus net sleeve; the second anti-thrombus net sleeve is made of memory alloy; the second thrombus-proof net sleeve is sleeved on the lock rod.
3. The mitral valve binder of claim 2, wherein: the distal end of the first anti-thrombotic mesh is connected with the distal end of the second anti-thrombotic mesh by a heart valve suture.
4. The mitral valve binder of claim 3, wherein: the locking device also comprises a first clamping component and a second clamping component, wherein the first clamping component is arranged on the locking rod, and the second clamping component is arranged on the locking ring; the lock rod is inserted into the annular hole of the lock ring to connect the first clamping part with the second clamping part.
5. The mitral valve binder of claim 4, wherein: the first clamping part is provided with two first clamping arms; the second clamping part is provided with two second clamping arms, and each first clamping arm and the corresponding second clamping arm form a group of clamps.
6. The mitral valve binder of claim 5, wherein: the unit meshes of the first thrombus-prevention net cover are circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427977.5A CN107280713B (en) | 2017-06-08 | 2017-06-08 | Mitral valve clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427977.5A CN107280713B (en) | 2017-06-08 | 2017-06-08 | Mitral valve clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107280713A CN107280713A (en) | 2017-10-24 |
| CN107280713B true CN107280713B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710427977.5A Active CN107280713B (en) | 2017-06-08 | 2017-06-08 | Mitral valve clamping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107280713B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107595437B (en) * | 2017-10-27 | 2024-07-12 | 上海捍宇医疗科技股份有限公司 | Valve clamping system |
| CN109965921B (en) * | 2017-12-27 | 2023-12-08 | 上海锦葵医疗器械股份有限公司 | Heart mitral valve clamp |
| CN109771095A (en) * | 2019-01-23 | 2019-05-21 | 科凯(南通)生命科学有限公司 | A covered valve repair clip |
| WO2021027589A1 (en) * | 2019-08-12 | 2021-02-18 | 杭州德晋医疗科技有限公司 | Recoverable valve clamp and valve clamp recovery system |
| CN112168427A (en) * | 2020-11-02 | 2021-01-05 | 上海竑宇医疗科技有限公司 | Heart apex implantation cusp clamping device and heart apex implantation cusp clamping method |
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| CN101933839A (en) * | 2010-08-26 | 2011-01-05 | 先健科技(深圳)有限公司 | Connecting device for interventional medical equipment and method of use thereof |
| CN102860846A (en) * | 2012-09-05 | 2013-01-09 | 中国人民解放军第一0一医院 | Tricuspid valve edge-to-edge clip device capable of being implanted through catheter |
| CN106175845A (en) * | 2016-08-01 | 2016-12-07 | 上海纽脉医疗科技有限公司 | A kind of mitral leaflet reparation closing device |
| CN106175986A (en) * | 2016-07-26 | 2016-12-07 | 复旦大学附属中山医院 | A valve clamp |
| CN106214202A (en) * | 2011-09-13 | 2016-12-14 | 艾博特心脏血管系统公司 | Grasping device pusher mechanism for apposing tissue system |
| CN106491245A (en) * | 2015-09-06 | 2017-03-15 | 先健科技(深圳)有限公司 | Valve clamping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752813B2 (en) * | 1999-04-09 | 2004-06-22 | Evalve, Inc. | Methods and devices for capturing and fixing leaflets in valve repair |
| WO2005112792A2 (en) * | 2004-05-14 | 2005-12-01 | Evalve, Inc. | Locking mechanisms for fixation devices and methods of engaging tissue |
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2017
- 2017-06-08 CN CN201710427977.5A patent/CN107280713B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933839A (en) * | 2010-08-26 | 2011-01-05 | 先健科技(深圳)有限公司 | Connecting device for interventional medical equipment and method of use thereof |
| CN106214202A (en) * | 2011-09-13 | 2016-12-14 | 艾博特心脏血管系统公司 | Grasping device pusher mechanism for apposing tissue system |
| CN102860846A (en) * | 2012-09-05 | 2013-01-09 | 中国人民解放军第一0一医院 | Tricuspid valve edge-to-edge clip device capable of being implanted through catheter |
| CN106491245A (en) * | 2015-09-06 | 2017-03-15 | 先健科技(深圳)有限公司 | Valve clamping device |
| CN106175986A (en) * | 2016-07-26 | 2016-12-07 | 复旦大学附属中山医院 | A valve clamp |
| CN106175845A (en) * | 2016-08-01 | 2016-12-07 | 上海纽脉医疗科技有限公司 | A kind of mitral leaflet reparation closing device |
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| Publication number | Publication date |
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| CN107280713A (en) | 2017-10-24 |
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Effective date of registration: 20180810 Address after: 430070 202 building, No. 2, No. 2, B9 building, 818 hi-tech Avenue, East Lake New Technology Development Zone, Wuhan, Hubei. Applicant after: Wuhan Wei Ke Medical Technology Co., Ltd. Address before: 430000 1277 Liberation Road, Wuhan, Hubei Applicant before: Dong Nianguo Applicant before: Shang Xiaoke |
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