CN113520673A - Method for manufacturing clamping device - Google Patents
Method for manufacturing clamping device Download PDFInfo
- Publication number
- CN113520673A CN113520673A CN202110678153.1A CN202110678153A CN113520673A CN 113520673 A CN113520673 A CN 113520673A CN 202110678153 A CN202110678153 A CN 202110678153A CN 113520673 A CN113520673 A CN 113520673A
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- Prior art keywords
- clamping
- blank
- manufacturing
- cutting
- heat setting
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- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 238000009998 heat setting Methods 0.000 claims abstract description 17
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000004927 fusion Effects 0.000 claims description 3
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical group [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 210000001161 mammalian embryo Anatomy 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 5
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000018578 heart valve disease Diseases 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010002915 Aortic valve incompetence Diseases 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 208000035346 Margins of Excision Diseases 0.000 description 1
- 206010027727 Mitral valve incompetence Diseases 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 201000001943 Tricuspid Valve Insufficiency Diseases 0.000 description 1
- 206010044640 Tricuspid valve incompetence Diseases 0.000 description 1
- 230000007488 abnormal function Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 201000002064 aortic valve insufficiency Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 230000005786 degenerative changes Effects 0.000 description 1
- 230000003511 endothelial effect Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
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- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
-
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/246—Devices for obstructing a leak through a native valve in a closed condition
-
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2466—Delivery devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/04—Bending or folding of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/16—Straightening or flattening
- B29C53/18—Straightening or flattening of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
Abstract
The invention discloses a manufacturing method of a clamping device, which comprises the following steps of cutting, namely cutting a section bar according to preset lines to form a blank with two first clamping parts and two second clamping parts, and removing cut waste materials; arranging a connecting part, processing a threaded hole or a through hole in the center of the blank, or connecting an additional connecting device in the center of the blank; and (4) performing heat setting, namely extruding the two first clamping parts into a U shape through a prefabricated die, expanding the two second clamping parts into a V-shaped preset shape, and then putting the blank into a heat setting device for performing heat forming treatment to form the body. So set up, form the embryo through directly cutting on the section bar, then set up a connecting device or directly process out screw hole or through-hole on the embryo, form the body through heat setting at last on the embryo, whole process is simple, clamping device's simple structure, low in production cost.
Description
Technical Field
The invention relates to the technical field of valve clamping devices, in particular to a manufacturing method of a clamping device.
Background
Heart valve disease is a common heart disease. Aortic, mitral and tricuspid regurgitation and the like are the most common diseases of heart valves, and the incidence rate of the diseases is in a remarkably rising trend in recent years. The etiology of the disease can be divided into rheumatic change, degenerative change, congenital malformation, ischemic necrosis, infection or trauma, and the like, and the normal flow of blood is influenced, so that the abnormal function of the heart is caused, and finally the psychological failure is caused. With the aging of the population, senile valvular diseases and valvular diseases caused by coronary heart disease and myocardial infarction are more and more common. The treatment of heart valve disease by minimally invasive interventional devices, all of which are based on surgical margin-to-margin suturing techniques, is a research hotspot in recent years.
The valve clamping device used clinically at present has the disadvantages of complex mechanical structure, complex manufacturing process, more manufacturing procedures, time and labor consumption and high production cost.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a manufacturing method of the clamping device, which completes the manufacturing of the clamping device through steps of cutting, heat setting and the like, and has the advantages of simple production process, less working procedures, simple mechanical structure and low production cost.
A method of manufacturing a clamping device according to an embodiment of the present invention includes the steps of:
cutting, namely cutting the section according to preset lines to form a blank with two first clamping parts and two second clamping parts, and removing cut waste materials;
arranging a connecting part, processing a threaded hole or a through hole in the center of the blank, or connecting an additional connecting device in the center of the blank;
and (3) performing heat setting, namely extruding the two first clamping parts into a U shape and expanding the second clamping parts into a V-shaped preset shape through a prefabricated die, and then putting the blank into a heat setting device for performing heat forming treatment to form the body.
The manufacturing method of the clamping device according to the embodiment of the invention has at least the following beneficial effects: the blank is formed by directly cutting on the section bar, then a connecting device is arranged on the blank or a threaded hole or a through hole is directly processed on the blank, and finally the body is formed by heat setting.
According to some embodiments of the invention, in the cutting step, the profile may be a plate or a tube.
According to some embodiments of the present invention, when the section bar is a plate, in the step of providing the connection portion, the connection portion is provided by machining the threaded hole or the through hole in the center of the blank; when the section bar is a pipe, in the step of arranging the connecting part, the connecting part is arranged in a manner that an additional connecting device is connected to the center of the blank.
According to some embodiments of the invention, when the section bar is a plate material, the bending step is further included, and the two sides of the first clamping portion are bent to form inclined stabilizing plates through a prefabricated die or a bending machine, so as to enable the first clamping portion to be clamped on the valve more firmly.
According to some embodiments of the invention, when the profile is a pipe, the connection means is connected to the blank by welding, screwing or clamping.
According to some embodiments of the invention, the two first clamping portions and the two second clamping portions are symmetrically arranged.
According to some embodiments of the invention, the material of the profile is nitinol.
According to some embodiments of the invention, between the cutting step and the connecting part arranging step, an anchoring thorn processing step is further included, wherein a cutting device is used for cutting on the inner side of the first clamping part, and one end of the cut part is lifted up to form a plurality of inward inclined anchoring thorns.
According to some embodiments of the present invention, after the heat setting step, a film covering step is further included, and a film is covered on the outer side of the body by means of sewing or heat fusion.
According to some embodiments of the invention, the material of the film is polyester or polytetrafluoroethylene.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a clamping device according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the clamping device shown in FIG. 1 during heat setting;
FIG. 3 is a schematic view of a blank of a clamping device according to a first embodiment of the present invention (using a plate material);
FIG. 4 is a schematic structural view of a clamping device according to a first embodiment of the present invention (provided with an anchor);
FIG. 5 is a front view of a clamping device according to a first embodiment of the invention;
FIG. 6 is a diagram of a blank of a second embodiment of a clamping device (using tubing) according to the present invention;
FIG. 7 is a process diagram of forming the blank of FIG. 6;
FIG. 8 is a schematic structural diagram of a clamping device according to a second embodiment of the present invention;
FIG. 9 is a schematic structural view of a clamping device according to a third embodiment of the present invention;
FIG. 10 is a schematic structural view of a clamping device according to a fourth embodiment of the present invention;
FIG. 11 is a schematic view of a process of loading a gripping device in a transport device according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a clamping device according to a fifth embodiment of the present invention (cladding film);
FIG. 13 is a schematic view of the film shown in FIG. 12 before it is mounted in a holding device.
The main body 100, the first clamping part 110, the second clamping part 120, the guide surface 130, the stabilizing plate 140, the threaded hole 150, and the anchor 160;
a film 200;
a conveying device 300;
the valve 400.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is more than one, and the meaning of more than, less than, more than, etc. is understood as excluding the present number, and the meaning of more than, less than, etc. is understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 3, a method for manufacturing a clamping device according to an embodiment of the present invention includes the steps of:
cutting, referring to fig. 3, the profile is cut according to a predetermined pattern to form a blank having two first clamps 110 and two second clamps 120, and the cut waste is removed;
providing a connecting part, referring to fig. 1, machining a thread 150 or a through hole in the center of the blank, or connecting an additional connecting device in the center of the blank;
and (3) performing heat setting, namely, referring to fig. 2, extruding the two first clamping parts 110 into a U shape through a prefabricated die, expanding the two second clamping parts 120 into a preset V shape, and then putting the blank into a heat setting device for performing heat forming treatment to form the body 100.
The manufacturing method of the clamping device according to the embodiment of the invention has at least the following beneficial effects: the blank is formed by directly cutting the section bar, then the blank is provided with a connecting device or a threaded hole 150 or a through hole is directly processed on the blank, and finally the body 100 is formed by heat setting.
According to some embodiments of the present invention, in the cutting step, the profile may be a plate material as shown in fig. 3 or a tube material as shown in fig. 6, and the material of the plate material or the tube material is nitinol.
In the above embodiment, when the profile is a plate, in the step of providing the connection portion, as shown in fig. 1, the connection portion is provided by machining a threaded hole 150 or a through hole in the center of the blank, the front end of the conveying device 300 is correspondingly provided with an external thread structure or a snap structure, when the profile is a pipe, as shown in fig. 6, the connection portion is provided by additionally connecting a connection device, the connection mode may be welding, threaded connection or snap connection, and the conveying device 300 is correspondingly provided with a structure matching the connection device.
According to some embodiments of the present invention, referring to fig. 1, when the profile is a plate material, a bending step is further included, and an inclined stabilizing plate 140 is bent at two sides of the first clamping portion 110 by a prefabricated mold or a bending machine, so that the first clamping portion 110 can be more sufficiently attached to the valve by the provision of the stabilizing plate 140, and a gap is prevented from being generated.
In the above embodiment, the two first clamping portions 110 and the two second clamping portions 120 are symmetrically arranged, and the two second clamping portions 120 are located between the two first clamping portions 110.
According to some embodiments of the present invention, referring to fig. 4 and 5, between the cutting step and the connecting portion setting step, an anchoring processing step is further included, wherein a cutting device is used to cut the inner side of the first clamping portion 110, and one end of the cut portion is lifted up to form a plurality of inwardly inclined anchors 160, so that the first clamping portion 110 can be more firmly attached to the valve through the anchors 160, and the clamping device is prevented from falling off.
According to some embodiments of the present invention, referring to fig. 12 and 13, after the heat setting step, a film covering step is further included, in which the film 200 is covered on the outer side of the body by means of sewing or heat fusion, the film 200 can protect valve tissue, accelerate endothelial covering, increase surface contact area, and increase contact friction.
It should be noted that the above-mentioned inner side refers to the area between the two first clamping portions 110, and the outer side refers to the side of the first clamping portion 110 away from the second clamping portion 120.
In the above embodiment, the material of the film 200 is polyester or polytetrafluoroethylene.
According to some embodiments of the present invention, referring to fig. 6 to 8, when the profile is a tube, the profile is cut to form the structure shown in fig. 6, and the excess waste is removed, then the two second clamping portions 120 are folded to both sides, as shown in fig. 7, put into a heat setting device and then thermoformed, and after being taken out, the two first clamping portions 110 are folded outwards, and the second clamping portions 120 are pressed inwards to form the state shown in fig. 8.
According to some embodiments of the present invention, referring to fig. 9, the first clamping portion 110 is an extension of the second clamping portion 120, and the extension of the second clamping portion 120 is bent at a distal end to form the first clamping portion 110, and is configured in such a shape that the first clamping portion 110 and the second clamping portion 120 can horizontally clamp an object when performing a clamping function, thereby reducing a clamping gap and improving a clamping effect, and a connecting device of the clamping device is disposed at an upper end of the first clamping portion 110 and the second clamping portion 120.
According to some embodiments of the present invention, referring to fig. 10, the first clamping portion 110 is an extension of the second clamping portion 120, and the extension of the second clamping portion 120 is bent at a distal end to form the first clamping portion 110, and is configured in such a shape that the first clamping portion 110 and the second clamping portion 120 can horizontally clamp an object when performing a clamping function, thereby reducing a clamping gap and improving a clamping effect, and an anchor 160 is further provided at an inner side of the first clamping portion 110 to improve stability of a clamping device, and a connecting device of the clamping device is provided at a middle position of the first clamping portion 110 and the second clamping portion 120.
In the above embodiment, referring to fig. 11, when the clamping device is loaded into the conveying device 300 through the connecting device, the two second clamping portions 120 are contracted toward the middle and lifted into the conveying device 300, the two first clamping portions 110 are folded outward so as to be kept substantially in the same line with the second clamping portions 120, and the lifting is continued upward so that the first clamping portions 110 also enter the conveying device 300.
In the implantation process, the body 100 is loaded on the conveying device 300, the clamping device is pushed out after the body is conveyed to a target position, the first clamping part 110 is slowly closed under the relative closing acting force until the first clamping part is propped by a supporting part at the front end of the conveying device 300, the valve is accommodated between the first clamping part 110 and the second clamping part 120, the conveying device 300 is lifted after the body is conveyed to the target position, the supporting part moves upwards, at the moment, the second clamping part 120 is attached to one side of the valve under the action of the opening relative acting force, the first clamping part 110 is folded towards the middle under the action of the closing relative acting force due to the loss of the supporting action of the supporting part and is attached to the other side of the valve, and therefore the clamping action is completed.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A method of manufacturing a clamping device, comprising the steps of:
cutting, namely cutting the section according to preset lines to form a blank with two first clamping parts and two second clamping parts, and removing cut waste materials;
arranging a connecting part, processing a threaded hole or a through hole in the center of the blank, or connecting an additional connecting device in the center of the blank;
and (3) performing heat setting, namely extruding the two first clamping parts into a U shape and expanding the second clamping parts into a V-shaped preset shape through a prefabricated die, and then putting the blank into a heat setting device for performing heat forming treatment to form the body.
2. The method of claim 1, wherein in the cutting step, the profile is a plate or a tube.
3. A method of manufacturing a clamping device according to claim 2,
when the section bar is a plate, in the step of arranging the connecting part, the connecting part is arranged in a mode that the threaded hole or the through hole is processed in the center of the blank;
when the section bar is a pipe, in the step of arranging the connecting part, the connecting part is arranged in a manner that an additional connecting device is connected to the center of the blank.
4. The method for manufacturing a clamping device as claimed in claim 3, wherein when the section bar is a plate, the method further comprises a bending step of bending two sides of the first clamping portion to form inclined stabilizing plates by a prefabricated mold or a bending machine, so as to clamp the first clamping portion on the valve more firmly.
5. A method as claimed in claim 2 or 3, wherein the connection means is welded, screwed or snapped to the blank when the profile is a tube.
6. The method of claim 1, wherein the two first clamping portions and the two second clamping portions are symmetrically arranged.
7. A method of manufacturing a gripping device according to claim 1 or 2, characterized in that the material of the profile is nitinol.
8. The method for manufacturing a clamping device according to claim 1, further comprising a step of processing anchors between the step of cutting and the step of providing the connecting portion, wherein a cutting device is used to cut the inner side of the first clamping portion, and one end of the cut portion is lifted up to form a plurality of anchors inclined inward.
9. The method for manufacturing a clamping device according to claim 1, further comprising a film covering step of covering the outer side of the body with a film by sewing or heat fusion after the heat setting step.
10. A method of manufacturing a clamping arrangement according to claim 9, wherein the material of the membrane is polyester or polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110678153.1A CN113520673A (en) | 2021-06-18 | 2021-06-18 | Method for manufacturing clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110678153.1A CN113520673A (en) | 2021-06-18 | 2021-06-18 | Method for manufacturing clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113520673A true CN113520673A (en) | 2021-10-22 |
Family
ID=78125210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110678153.1A Pending CN113520673A (en) | 2021-06-18 | 2021-06-18 | Method for manufacturing clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113520673A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106491245A (en) * | 2015-09-06 | 2017-03-15 | 先健科技(深圳)有限公司 | Valve clamping device |
| CN107920813A (en) * | 2015-07-21 | 2018-04-17 | 埃瓦尔维公司 | Organize clamping device and correlation technique |
| US20190142589A1 (en) * | 2016-07-13 | 2019-05-16 | Medfree, Inc. | Tissue grasping devices and related methods |
| CN212234804U (en) * | 2020-09-02 | 2020-12-29 | 石家庄帝中医疗器械科技有限公司 | Clamping device and mitral valve repair system |
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2021
- 2021-06-18 CN CN202110678153.1A patent/CN113520673A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920813A (en) * | 2015-07-21 | 2018-04-17 | 埃瓦尔维公司 | Organize clamping device and correlation technique |
| CN106491245A (en) * | 2015-09-06 | 2017-03-15 | 先健科技(深圳)有限公司 | Valve clamping device |
| US20190142589A1 (en) * | 2016-07-13 | 2019-05-16 | Medfree, Inc. | Tissue grasping devices and related methods |
| CN212234804U (en) * | 2020-09-02 | 2020-12-29 | 石家庄帝中医疗器械科技有限公司 | Clamping device and mitral valve repair system |
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