CN113693785A - Rope fastening device - Google Patents
Rope fastening device Download PDFInfo
- Publication number
- CN113693785A CN113693785A CN202110953074.7A CN202110953074A CN113693785A CN 113693785 A CN113693785 A CN 113693785A CN 202110953074 A CN202110953074 A CN 202110953074A CN 113693785 A CN113693785 A CN 113693785A
- Authority
- CN
- China
- Prior art keywords
- tether
- base
- bundling
- assembly
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013013 elastic material Substances 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 210000003709 heart valve Anatomy 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
- 238000009958 sewing Methods 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000018578 heart valve disease Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000005003 heart tissue Anatomy 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000004115 mitral valve Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001991 pathophysiological effect Effects 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2476—Valves implantable in the body not otherwise provided for
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a rope tying fixing device. A tether securing device comprising: a fixed base, the middle part of which can be penetrated by the tying rope; the bundling assembly is detachably connected with the fixed base, and the middle part of the bundling assembly can be penetrated by the tying rope; after the tether sequentially passes through the fixing base and the bundling assembly, the bundling assembly is used for bundling and fixing the tether, when the tether needs to be adjusted, the bundling assembly is loosened, the tether is adjusted, and then the bundling assembly is used for bundling and fixing the adjusted tether. The invention is used for fixing the tether for the artificial heart valve, can be used for bundling or loosening the tether through the bundling assembly, can adjust the length of the tether according to the condition of a patient, and is simple and convenient to use.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a rope tying fixing device.
Background
The normal heart valve is an important structure for maintaining the blood flow of the heart pump. Valvular pathologies such as stenosis and incompetence can lead to hemodynamic changes, leading to a series of pathophysiological pathologies, which are life-threatening in the severe cases. The heart valve diseases are caused by a plurality of reasons, are related to heredity, immunity, infection and the like, and are one of the more common heart diseases. With the continuous advancement of technology, prosthetic heart valve replacement technology has become one of the main means and the most effective way in treating heart valve diseases. The technique is used for intervening in a human body through a catheter, and the artificial heart valve is placed at the focus position of the human body, so that the treatment of diseases is realized.
In order to ensure high effectiveness after valve replacement, the precision of the fixing position of the valve support in the heart is high, and therefore, a fixing structure needs to be set to accurately define the position of the artificial valve. For example, in mitral valve replacement, it is necessary to ensure that the valve cannot shift into the atrium under the impact of blood flow after replacement, and the device fails. However, the tether is thin, and if the tether is directly tied to be fixed, the tether can damage heart tissues due to excessive tension in the subsequent continuous beating process of the heart. In addition, the direct knotting fixation is inconvenient when the length of the tether needs to be adjusted for the second time.
Disclosure of Invention
The invention aims to solve the technical problem that a tether connected to a prosthetic valve stent is inconvenient to fix and adjust, and aims to provide a tether fixing device.
A tether securing device comprising:
a fixed base, the middle part of which can be penetrated by the tying rope;
the bundling assembly is detachably connected with the fixed base, and the middle part of the bundling assembly can be penetrated by a tying rope;
when the tether sequentially penetrates through the fixing base and the bundling assembly, the bundling assembly is used for bundling and fixing the tether, when the tether needs to be adjusted, the bundling assembly is loosened, and after the tether is adjusted, the bundling assembly is used for bundling and fixing the adjusted tether.
The fixing base includes:
a base chassis, the middle part of which can be penetrated by a tether;
and the biocompatible covering film is wrapped at least on one side of the base chassis facing the heart.
The periphery of the base chassis is provided with at least one suture hole, and the base chassis is connected with the biocompatible covering film through the suture hole in a suture mode.
The biocompatible covering film is one or the combination of a biological film or a high polymer material film.
The biocompatible covering film is a medical elastic material, and the medical elastic material is one or more combined materials of medical rubber, medical sponge, a medical sewing film or a medical bandage.
The bunching assembly includes:
an elastic member, the middle part of which can be penetrated by the tying rope;
the middle part of the binding piece can be penetrated by a binding rope and is matched and connected with the elastic piece;
the tether is constricted when the constriction member is attached to the elastic member and is released when the constriction member is detached from the elastic member.
The elastic component is a hollow cylinder structure, at least one slot is arranged on the outer circumferential surface of the elastic component, the slot is communicated with the inside and the outside of the elastic component, the length direction of the slot is the axial direction of the elastic component, and the elastic component is in interference fit with the bundling component.
The four slots are uniformly formed in the outer circumferential surface of the elastic piece.
The binding piece is a hollow cylindrical cover body, one end of the binding piece is of an open structure, the other end of the binding piece is provided with a binding through hole through which a binding rope can pass, and the inner side surface of the binding piece is provided with internal threads;
and the outer circumferential surface of the elastic piece is provided with an external thread, and the elastic piece is in threaded connection with the bundling piece.
The fixing base includes:
a hollow interior susceptor ring, said binding assembly being removably connected to said susceptor ring.
The tether securing device further comprises:
and the limiting assembly limits part of the elastic element in the base ring and prevents the elastic element from moving.
The spacing subassembly includes:
and the middle part of the clamping part can be penetrated by a tying rope, is connected with the elastic part and is assembled in the base ring.
At least one buckling step is arranged in the base ring;
at least one clamping groove is dug from outside to inside on the periphery of the clamping part, and the clamping groove is connected with the clamping step in a clamping and matching mode.
A circle of limiting accommodating groove is formed in the inner wall of the base ring;
spacing subassembly still includes:
and the bottom surface of the clamping ring is abutted to the upper surface of the clamping piece, and the outer circumferential surface of the clamping ring is abutted to the limiting accommodating groove.
The snap ring is preferably a C-shaped snap ring.
The positive progress effects of the invention are as follows: the invention adopts the tether fixing device for fixing the tether for the artificial heart valve, can be used for bundling or loosening the tether through the bundling assembly, can adjust the length of the tether according to the condition of a patient, and is simple and convenient to use.
Drawings
FIG. 1 is a schematic view of an overall structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the present invention after the tether is retracted.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings.
Referring to fig. 1 to 3, a tether fixing device includes a fixing base 1, a bunching assembly 2, and a limiting assembly 3. The bundling component 2 is detachably connected with the fixed base 1, and the bundling component 2 can be limited on the fixed base 1 through the limiting component 3.
The middle part of the fixed base 1 is provided with a base through hole through which the tether can pass. The fixed base 1 comprises a base chassis 11, an internally hollow base ring 12 and a biocompatible coating. The base chassis 11 is a disc-shaped structure with two planar end faces, and a base ring 12 is integrally arranged on the base chassis. The base chassis 11 has a diameter greater than the outer diameter of the base ring 12, and a circle of tether receiving grooves 13 may be formed on the outer circumferential surface of the junction of the base chassis 11 and the base ring 12 so that an excessive tether may be wound in the tether receiving grooves 13.
The base chassis 11 has a base through hole formed in the middle thereof through which the tether passes, and the base chassis 11 has at least one suture hole 111 formed in the periphery thereof, as shown in fig. 1 and 2, the plurality of suture holes 111 are formed in the periphery of the base chassis 11, and the plurality of suture holes 111 are uniformly arranged in a circle. The biocompatible coating is applied to at least the side of the base pan 11 facing the heart, which is the other side facing away from the base ring 12. The biocompatible covering film is connected with the base chassis 11 through the suture holes 111 in a sewing way. The biocompatible covering film can be one or the combination of a biological film or a high polymer material film. The biocompatible covering film can also be a medical elastic material, and the medical elastic material is one or more combined materials of medical rubber, medical sponge, medical sewing film or medical bandage.
The base ring 12 is hollow inside, forming a base housing cavity that can house part of the bunching assembly 2 and the spacing assembly 3. At least one buckling step 121 is arranged in the base ring 12, the number of the buckling steps 121 is preferably three, and the three buckling steps 121 are uniformly arranged on the inner wall of the base ring 12. Be equipped with spacing holding groove 122 of round on base ring 12 inner wall, spacing holding groove 122 is located the top of buckle step 121.
The bundling component 2 is detachably connected with the fixed base 1, and a component through hole through which a tether can pass is formed in the middle of the bundling component 2. After the tether passes through the base through hole and the assembly through hole in sequence, the tether is bundled and fixed by the bundling assembly 2, when the tether needs to be adjusted, the bundling assembly 2 is loosened, the tether is adjusted, and then the adjusted tether is bundled and fixed by the bundling assembly 2.
The bunching assembly 2 includes an elastic member 21 and a bunching member 22. The elastic member 21 is connected with the binding member 22 in a matching way. The elastic member 21 and the middle portion of the constricting element 22 may both be threaded by a tether. When the constriction member 22 is attached to the elastic member 21, the tether is constricted, and when the constriction member 22 is detached from the elastic member 21, the tether is released.
The elastic part 21 is a hollow cylinder structure, and the middle part of the elastic part 21 is provided with an elastic part through hole. At least one open slot 211 is formed in the outer circumferential surface of the elastic member 21, the open slot 211 is communicated with the inside and the outside of the elastic member 21, and the length direction of the open slot 211 is the axial direction of the elastic member 21. As shown in fig. 2, the slot 211 is dug from top to bottom. The four slots 211 are uniformly formed on the outer circumferential surface of the elastic member 21. The elastic member 21 is preferably provided with an external thread on its outer circumferential surface.
The constriction 22 is preferably connected to the resilient member 21 by an interference fit. The bundling piece 22 is a hollow cylindrical cover body, one end of the bundling piece 22 is of an open structure, the other end of the bundling piece is provided with a bundling through hole through which a tying rope can pass, and the bundling through hole and the elastic piece through hole jointly form an assembly through hole. The inner side surface of the binding piece 22 is provided with internal threads, and the binding piece 22 is in threaded connection with the elastic piece 21.
The restraining assembly 3 restrains portions of the resilient member 21 within the base ring 12, preventing movement of the resilient member 21. The spacing assembly 3 fits within the base ring 12. The limiting assembly 3 comprises a snap member 31 and a snap ring 32. The middle part of the fastener 31 can be penetrated by a tether, the fastener 31 is fixedly connected with the bottom surface of the elastic member 21, and preferably, the fastener 31 is integrally formed with the elastic member 21. At least one clamping groove 311 is dug from the outside to the inside on the periphery of the buckling piece 31, the number of the clamping grooves 311 is preferably three, the three clamping grooves 311 are uniformly arranged on the periphery of the buckling piece 31, and the clamping grooves 311 are connected with the buckling steps 121 in a clamping fit mode. Snap ring 32 is preferably a C-shaped snap ring 32. The bottom surface of the snap ring 32 abuts against the upper surface of the fastener 31, and the outer circumferential surface of the snap ring 32 abuts against the limiting accommodating groove 122.
When the invention is used, the bunching assembly 2 is limited in the base ring 12 of the fixed base 1 through the limiting assembly 3. The bundling piece 22 is detached from the elastic piece 21, the tying rope 4 penetrates out of the upper end of the elastic piece 21 after passing through the base through hole and the assembly through hole in sequence, the bundling piece 22 is in threaded connection with the elastic piece 21 after the tying rope 4 penetrates through the middle of the bundling piece 22, the elastic piece 21 is gradually bundled in the rotation process of the bundling piece 22, and the tying rope 4 is firmly bundled and clamped. Referring to fig. 4, the present invention is illustrated in a state where the tether fixing device is retracted and the tether cannot be pulled. When the tether 4 needs to be adjusted, the tether 4 can be loosened by rotating the restraining member 22 out of the elastic member 21, and the adjustment is performed. After the adjustment of the tether 4 is completed, the tightening member 22 is screwed to the elastic member 21, and the tether 4 is tightened and caught again.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A tether securing device, comprising:
a fixed base, the middle part of which can be penetrated by the tying rope;
the bundling assembly is detachably connected with the fixed base, and the middle part of the bundling assembly can be penetrated by a tying rope;
when the tether sequentially penetrates through the fixing base and the bundling assembly, the bundling assembly is used for bundling and fixing the tether, when the tether needs to be adjusted, the bundling assembly is loosened, and after the tether is adjusted, the bundling assembly is used for bundling and fixing the adjusted tether.
2. The tether securing device of claim 1, wherein the securing base comprises:
a base chassis, the middle part of which can be penetrated by a tether;
and the biocompatible covering film is wrapped at least on one side of the base chassis facing the heart.
3. The tether securing device of claim 2, wherein the base chassis is provided at its periphery with at least one suture hole, the base chassis being sutured to the biocompatible covering membrane via the suture hole;
the biocompatible covering film is one or the combination of a biological film, a high polymer material film or a medical elastic material.
4. The tether securing device of claim 1, wherein the cinch assembly comprises:
an elastic member, the middle part of which can be penetrated by the tying rope;
the middle part of the binding piece can be penetrated by a binding rope and is matched and connected with the elastic piece;
the tether is constricted when the constriction member is attached to the elastic member and is released when the constriction member is detached from the elastic member.
5. The tether securing device of claim 4, wherein the resilient member is a hollow cylinder, and the resilient member has at least one slot formed in an outer circumferential surface thereof, the slot communicating with the inside and the outside of the resilient member, the slot having a length in a direction of an axis of the resilient member, the resilient member being in interference fit with the cinching member.
6. The tether securing apparatus of claim 4, wherein the constricting element is a hollow cylindrical cap, one end of the constricting element is open, the other end of the constricting element is provided with a constricting through hole through which the tether passes, and an inner side surface of the constricting element is provided with an internal thread;
and the outer circumferential surface of the elastic piece is provided with an external thread, and the elastic piece is in threaded connection with the bundling piece.
7. The tether securing device of claim 4, wherein the securing base comprises:
the hollow base ring is arranged in the base, and the bunching assembly is detachably connected with the base ring;
the tether securing device further comprises:
and the limiting assembly limits part of the elastic element in the base ring and prevents the elastic element from moving.
8. The tether securing device of claim 7, wherein the stop assembly comprises:
and the middle part of the clamping part can be penetrated by a tying rope, is connected with the elastic part and is assembled in the base ring.
9. The tether securing device of claim 8, wherein the base ring has at least one snap step therein;
at least one clamping groove is dug from outside to inside on the periphery of the clamping part, and the clamping groove is connected with the clamping step in a clamping and matching mode.
10. The tether securing device of claim 8, wherein the base ring has a ring of retaining receiving grooves on an inner wall thereof;
spacing subassembly still includes:
and the bottom surface of the clamping ring is abutted to the upper surface of the clamping piece, and the outer circumferential surface of the clamping ring is abutted to the limiting accommodating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953074.7A CN113693785A (en) | 2021-08-19 | 2021-08-19 | Rope fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953074.7A CN113693785A (en) | 2021-08-19 | 2021-08-19 | Rope fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113693785A true CN113693785A (en) | 2021-11-26 |
Family
ID=78653437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110953074.7A Pending CN113693785A (en) | 2021-08-19 | 2021-08-19 | Rope fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113693785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028032A (en) * | 2021-12-21 | 2022-02-11 | 启晨(上海)医疗器械有限公司 | Adjustable apex of heart gasket |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555231A (en) * | 2013-08-01 | 2016-05-04 | 坦迪尼控股股份有限公司 | Epicardial anchor devices and methods |
| CN106068109A (en) * | 2014-03-10 | 2016-11-02 | 坦迪尼控股股份有限公司 | For positioning and monitor the apparatus and method of the tether load of prosthetic mitral valve |
| US20180092744A1 (en) * | 2016-10-05 | 2018-04-05 | Randolf Von Oepen | Systems and methods for delivering and deploying an artificial heart valve within the mitral annulus |
| CN110934664A (en) * | 2018-09-25 | 2020-03-31 | 先健科技(深圳)有限公司 | Heart valve |
| CN111973316A (en) * | 2019-05-21 | 2020-11-24 | 先健科技(深圳)有限公司 | Tether for heart valve and heart valve |
| CN112790897A (en) * | 2021-02-22 | 2021-05-14 | 北京市普惠生物医学工程有限公司 | Medical instrument for heart valve replacement |
| WO2021126778A1 (en) * | 2019-12-16 | 2021-06-24 | Edwards Lifesciences Corporation | Valve holder assembly with suture looping protection |
| CN113262079A (en) * | 2021-06-10 | 2021-08-17 | 启晨(上海)医疗器械有限公司 | Fixing structure of artificial heart valve |
| CN215778924U (en) * | 2021-08-19 | 2022-02-11 | 启晨(上海)医疗器械有限公司 | Tether adjustable fastener |
-
2021
- 2021-08-19 CN CN202110953074.7A patent/CN113693785A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555231A (en) * | 2013-08-01 | 2016-05-04 | 坦迪尼控股股份有限公司 | Epicardial anchor devices and methods |
| CN106068109A (en) * | 2014-03-10 | 2016-11-02 | 坦迪尼控股股份有限公司 | For positioning and monitor the apparatus and method of the tether load of prosthetic mitral valve |
| US20180092744A1 (en) * | 2016-10-05 | 2018-04-05 | Randolf Von Oepen | Systems and methods for delivering and deploying an artificial heart valve within the mitral annulus |
| CN110934664A (en) * | 2018-09-25 | 2020-03-31 | 先健科技(深圳)有限公司 | Heart valve |
| CN111973316A (en) * | 2019-05-21 | 2020-11-24 | 先健科技(深圳)有限公司 | Tether for heart valve and heart valve |
| WO2020233598A1 (en) * | 2019-05-21 | 2020-11-26 | 先健科技(深圳)有限公司 | Tether for heart valve, and heart valve |
| WO2021126778A1 (en) * | 2019-12-16 | 2021-06-24 | Edwards Lifesciences Corporation | Valve holder assembly with suture looping protection |
| CN112790897A (en) * | 2021-02-22 | 2021-05-14 | 北京市普惠生物医学工程有限公司 | Medical instrument for heart valve replacement |
| CN113262079A (en) * | 2021-06-10 | 2021-08-17 | 启晨(上海)医疗器械有限公司 | Fixing structure of artificial heart valve |
| CN215778924U (en) * | 2021-08-19 | 2022-02-11 | 启晨(上海)医疗器械有限公司 | Tether adjustable fastener |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028032A (en) * | 2021-12-21 | 2022-02-11 | 启晨(上海)医疗器械有限公司 | Adjustable apex of heart gasket |
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