CN115106651A - Anchor hole connecting method of blood vessel stitching instrument - Google Patents
Anchor hole connecting method of blood vessel stitching instrument Download PDFInfo
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- CN115106651A CN115106651A CN202210784788.4A CN202210784788A CN115106651A CN 115106651 A CN115106651 A CN 115106651A CN 202210784788 A CN202210784788 A CN 202210784788A CN 115106651 A CN115106651 A CN 115106651A
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- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Abstract
The invention provides an anchor hole connecting method of a blood vessel stitching instrument, the blood vessel stitching instrument comprises a line pressing joint sleeve and a stitching line, the line pressing joint sleeve is cylindrical, and an anchor hole is formed inside the line pressing joint sleeve; the anchor hole connecting method comprises the following steps: cutting at least three gaps at one end of a wire pressing joint sleeve to enable the sum of circumferential sizes of the cut end part of the wire pressing joint sleeve to be matched with the outer diameter of a suture line; step two, one end of the suture is penetrated in the anchor hole from the notch end of the wire pressing joint sleeve; step three, extruding and shaping each opening on the wire pressing joint sleeve into a seam by using a sleeve positioning piece; and step four, welding the seam, and removing the sleeve positioning piece after welding to complete the anchor hole connection of the blood vessel stitching instrument. The anchor hole connecting method can effectively ensure good connection firmness of the anchor hole and the suture line, and the notch formed by the anchor hole is relatively simple to process, controllable in actual connection operation process and easy to operate.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an anchor hole connecting method of a blood vessel stitching instrument.
Background
The blood vessel stitching instrument is a hemostatic instrument after interventional operation treatment, and is deeply favored by medical institutions in recent years due to the advantages of remarkable hemostatic effect, easiness in operation, small side effect and the like. The reliability of the key part of the blood vessel stitching instrument, namely the anchor hole line pressing component, is a key point of the technology, and the part is small, the material of the stitching line is polytetrafluoroethylene, the friction coefficient is small, the processing difficulty is high, and the connection strength is not easy to guarantee.
At present, in order to solve the problem of reliable connection between an anchor hole and a suture line, the anchor hole connection method of a blood vessel stitching instrument mainly comprises a direct extrusion method, an adhesive extrusion method and a backstop hook heat seal extrusion method, wherein the direct extrusion method is to penetrate a polytetrafluoroethylene suture line through a line pressing end of the anchor hole and connect the polytetrafluoroethylene suture line through an extrusion mode; the adhesive extrusion method is characterized in that a polytetrafluoroethylene suture is adhered and then penetrates through a line pressing end of an anchor hole, and then the polytetrafluoroethylene suture and the line pressing end are connected through extrusion, the contact surface of the adhesive is small, so that the effect of improving the connection firmness of the anchor hole and the suture is not obvious, and meanwhile, the risk of compatibility of chemicals and organisms is easily caused due to the adoption of the adhesive of chemical substances; the heat sealing extrusion method of the retaining hook is characterized in that the head of a polytetrafluoroethylene suture line is penetrated into a pressure line end of an anchor hole after heat sealing, then a barb formed by the anchor hole is extruded into the line by a pure physical method, but the processing difficulty of the barb formed by the anchor hole is high, the heat sealing size of the head of the polytetrafluoroethylene suture line is difficult to control, if the heat sealing size is large, the polytetrafluoroethylene suture line cannot enter the anchor hole, and if the heat sealing size is small, the barb cannot be extruded into the line.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a method for connecting anchor holes of a vascular suture instrument, which aims to solve the problems of poor connection firmness between the anchor holes and suture lines and difficult actual connection.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for connecting anchor holes of a blood vessel stitching instrument comprises a wire pressing joint sleeve and a stitching wire, wherein the wire pressing joint sleeve is cylindrical and is internally provided with anchor holes;
the anchor hole connecting method comprises the following steps:
cutting at least three gaps at one end of a wire pressing joint sleeve to enable the sum of circumferential sizes of the cut end part of the wire pressing joint sleeve to be matched with the outer diameter of a suture line;
step two, one end of the suture is penetrated in the anchor hole from the notch end of the wire pressing joint sleeve;
step three, extruding and shaping each opening on the wire pressing joint sleeve into a seam by using a sleeve positioning piece;
and step four, welding the seam, and removing the sleeve positioning piece after welding to complete the anchor hole connection of the blood vessel stitching instrument.
Optionally, the sleeve positioning element comprises a positioning section and a shaping section which are connected, a positioning hole is arranged in the positioning section, a shaping hole is arranged in the shaping section, the positioning hole is communicated with the shaping hole, the positioning hole is a cylindrical hole, the radial dimension of the positioning hole is matched with the outer diameter dimension of the wire pressing joint sleeve, and the radial dimension of the shaping hole is gradually reduced along the direction departing from the positioning hole;
the third step is specifically as follows: sequentially penetrating the opening end of the line pressing joint sleeve through the positioning hole and the shaping hole, and at least partially exposing the opening end of the line pressing joint sleeve to the shaping section, wherein each opening on the opening end of the line pressing joint sleeve is extruded and shaped into a joint under the action of the shaping section;
the fourth step is specifically as follows: and welding the joint exposed out of the shaping section, and pushing the sleeve positioning piece out after the welding is finished to finish the anchor hole connection of the blood vessel stitching instrument.
Optionally, in step three, the length of the exposed portion of the notched end of the crimp fitting sleeve is 1/3-1/2 of the notch length.
Optionally, the sleeve positioning element further includes a guiding section, the guiding section is connected to one end of the positioning section, which is away from the shaping section, a guiding hole communicated with the positioning hole is arranged in the guiding section, and the radial dimension of the guiding hole is gradually increased along a direction away from the positioning hole;
the third step is specifically as follows: and the opening end of the wire pressing joint sleeve sequentially penetrates through the guide hole, the positioning hole and the shaping hole and is at least partially exposed out of the shaping section, and each opening on the opening end of the wire pressing joint sleeve is extruded and shaped into a joint under the action of the shaping section.
Optionally, in the third step, in the process of moving the opening end of the wire pressing joint sleeve in a penetrating manner, when the other end portion of the wire pressing joint sleeve is flush with the end portion of the guide section, which is away from the positioning section, the moving of the wire pressing joint sleeve in the penetrating manner is stopped.
Optionally, the outer diameters of the guiding section, the positioning section and the shaping section are the same, and the guiding section, the positioning section and the shaping section are of an integral structure.
Optionally, in the second step, the length of the suture thread penetrating the anchor hole is controlled to be larger than the length of the gap.
Optionally, the wire pressing joint sleeve is made of stainless steel, and in the first step, the notch is formed by laser cutting; the number of the gaps is 3-6, the gaps are uniformly distributed along the circumferential direction of the wire pressing joint sleeve, and the size of each gap is the same.
Optionally, the size of each gap along the length direction of the crimp sleeve is not more than 1/2 of the total length of the crimp sleeve, and the length of the suture thread passing through is not more than 1/2 of the total length of the crimp sleeve.
Optionally, the outer diameter of the crimp fitting sleeve is 0.45-0.55mm, and the wall thickness is 0.045-0.055 mm.
Has the advantages that:
the anchor hole connecting method of the blood vessel stitching instrument comprises the following steps of firstly cutting at least three notches at one end of a line pressing joint sleeve, so that the sum of the circumferential sizes of the cut end parts of the line pressing joint sleeve is matched with the outer diameter of a stitching line; then, one end of the suture is penetrated in the anchor hole from the opening end of the line pressing joint sleeve, then, each opening on the line pressing joint sleeve is extruded and shaped into a seam by adopting a sleeve positioning piece, the seam is welded, and after the welding is finished, the welding end of the line pressing joint sleeve just compresses the suture, so that the connection of the anchor hole and the suture can be realized; and finally, removing the sleeve positioning piece. The anchor hole connecting method can effectively ensure good connection firmness of the anchor holes and the suture lines, and the notch formed by the anchor holes is relatively simple to process, the actual connection operation process is controllable, and the operation is easy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic structural view of a wire pressing joint sleeve after a notch is cut in the blood vessel suturing device of the present invention;
FIG. 2 is a schematic view of the present invention illustrating a suture threaded through an anchor hole;
FIG. 3 is a schematic cross-sectional view of the sleeve positioning member of the present invention;
FIG. 4 is a schematic structural view of the sleeve positioning member of the present invention for pressing and shaping the notch of the sleeve of the wire pressing joint into a seam;
FIG. 5 is a schematic view showing the structure of the vascular suture instrument according to the present invention after the anchor holes are connected.
Reference numbers in the figures: 1-a wire joint sleeve; 11-anchor eye; 12-a gap; 13-seaming; 2-a suture thread; 3-a sleeve positioning piece; 31-a positioning section; 311-positioning holes; 32-a shaping section; 321-shaping holes; 33-a guide section; 331-guide hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The present invention will be described in detail with reference to examples. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Aiming at the problems of poor connection firmness and difficult actual connection between an anchor hole and a suture line in the prior art, the invention provides the anchor hole connection method of the blood vessel stitching instrument.
As shown in fig. 1 to 5, the blood vessel suturing device of the present invention comprises a wire pressing joint sleeve 1 and a suture thread 2, wherein the wire pressing joint sleeve 1 is cylindrical, an anchor hole 11 is arranged in the wire pressing joint sleeve, the suture thread 2 is made of polytetrafluoroethylene, and the anchor hole connecting method of the present invention comprises the following steps:
step one (see fig. 1), cutting at least three gaps 12 at one end of the crimp connector sleeve 1 to enable the sum of the circumferential sizes of the cut end portions of the crimp connector sleeve 1 to be matched with the outer diameter of the suture thread 2, so that after the subsequent gaps 12 are extruded and shaped to form a seam 13, the inner diameter of the end portion of the seam 13 is matched with the outer diameter of the suture thread 2, and the anchor hole 11 can be firmly connected with the suture thread 2 after the seam 13 is welded.
And step two (see fig. 2), one end of the suture 2 is penetrated into the anchor hole 11 from the end of the notch 12 of the crimp connector sleeve 1.
And step three (see fig. 4), extruding and shaping each gap 12 on the crimp connector sleeve 1 into a seam 13 by using the sleeve positioning piece 3.
And step four (see fig. 4 and 5), welding the seam 13, and removing the sleeve positioning piece 3 after the welding is finished to finish the connection of the anchor hole 11 of the blood vessel stitching instrument. The welding can be laser welding, and the operation is simple and firm.
Because the circumference size sum of tip and the external diameter looks adaptation of stylolite 2 after the cutting of line ball joint sleeve 1, then after the welding is accomplished, the butt weld of line ball joint sleeve 1 just in time compresses tightly stylolite 2, so alright realize being connected of anchor eye 11 and stylolite 2, and the fastness of connection is better.
It should be noted that the notch 12 is located at one end of the crimp connector sleeve 1 and penetrates through the end face thereof, the shape of the notch 12 may not be limited, as long as the sum of the circumferential dimensions of the cut end of the crimp connector sleeve 1 is matched with the outer diameter of the suture thread 2, and the open end of the notch 12 is shaped into the seam 13 by pressing, and the anchor hole 11 and the suture thread 2 can be firmly connected after welding the seam 13.
The structural arrangement of the sleeve holder 3 is not limited to this, and any structure may be used as long as the slit 12 can be formed into the seam 13 by extrusion molding.
As shown in fig. 3 and 4, in the specific embodiment of the present invention, the sleeve positioning element 3 is cylindrical and includes a positioning section 31 and a shaping section 32 connected to each other, a positioning hole 311 is disposed in the positioning section 31, a shaping hole 321 is disposed in the shaping section 32, the positioning hole 311 is communicated with the shaping hole 321, the positioning hole 311 is a cylindrical hole, and the radial dimension of the positioning hole 311 is adapted to the outer diameter dimension of the wire pressing joint sleeve 1 to position the wire pressing joint sleeve 1, thereby facilitating the subsequent operation of shaping the notch 12 into the seam 13; the radial dimension of the shaping hole 321 is gradually reduced along the direction departing from the positioning hole 311, that is, the shaping hole 321 is a gradually tapered hole and is used for positioning and forming the notch 12 into the seam 13.
The third step is specifically as follows: and sequentially enabling the ends of the gaps 12 of the wire pressing joint sleeve 1 to penetrate through the positioning hole 311 and the shaping hole 321 and at least partially expose out of the shaping section 32, and extruding and shaping each gap 12 on the ends of the gaps of the wire pressing joint sleeve 1 into a joint 13 under the action of the shaping section 32.
The fourth step is specifically as follows: and welding the joint 13 exposed out of the shaping section 32, and pushing out the sleeve positioning piece 3 after the welding is finished so as to finish the connection of the anchor hole 11 of the blood vessel stitching instrument.
It will be appreciated that the taper angle of the tapered shaping aperture 321 is the same as the taper angle of the welded end of the crimp fitting sleeve 1 at the seam 13 end to ensure that the gap 12 is effectively swaged into the seam 13.
Optionally, in step three, the length of the exposed portion of the end of the gap 12 of the crimp fitting sleeve 1 is 1/3-2/3 of the length of the gap 12. That is, when the sleeve positioning piece 3 is used to extrude and shape the notch 12 into the seam 13, the end of the shaping section 32 of the sleeve positioning piece 3 is located at 1/3-2/3 (such as 1/3, 1/2, 2/3 and the interval value between any two end points) of the length of the notch 12, which is convenient for the welding operation of the exposed seam 13, and can also ensure the welding firmness of the seam 13, thereby ensuring the connection firmness of the anchor hole 11 and the suture thread 2.
Further, in the embodiment of the present invention, the sleeve positioning element 3 further includes a guiding section 33, the guiding section 33 is connected to one end of the positioning section 31 away from the shaping section 32, a guiding hole 331 communicating with the positioning hole 311 is disposed in the guiding section 33, a radial dimension of the guiding hole 331 gradually increases along a direction away from the positioning hole 311, that is, the guiding hole 331 is a gradually changing hole, and the guiding section 33 is disposed to facilitate the wire crimping connector sleeve 1 to smoothly and rapidly penetrate through the sleeve positioning element 3.
The third step is specifically as follows: and (3) enabling the ends of the gaps 12 of the wire pressing joint sleeve 1 to sequentially pass through the guide holes 331, the positioning holes 311 and the shaping holes 321 and at least partially expose out of the shaping section 32, and extruding and shaping each gap 12 at the ends of the gaps 12 of the wire pressing joint sleeve 1 into a joint 13 under the action of the shaping section 32.
In the third step of the embodiment of the present invention, in the process of moving the end of the notch 12 of the wire pressing joint sleeve 1 in a penetrating manner, when the other end of the wire pressing joint sleeve 1 is flush with the end of the guide section 33 away from the positioning section 31, the moving of the wire pressing joint sleeve 1 in the penetrating manner is stopped. Such operation can be injectd the line ball joint sleeve 1 wear to establish the removal process, when another tip of line ball joint sleeve 1 deviates from the tip parallel and level of location section 31 with direction section 33, design section 32 just in time can be for seam 13 with opening 12 design, and can guarantee that seam 13 exposes a length and does benefit to welding operation.
In the embodiment of the present invention, the outer diameters of the guiding section 33, the positioning section 31 and the shaping section 32 are the same, and the guiding section 33, the positioning section 31 and the shaping section 32 are an integral structure. That is, the sleeve positioning piece 3 is cylindrical in shape and integrally integrated, so that the sleeve positioning piece 3 can be conveniently processed and manufactured, the integral reliability of the sleeve positioning piece 3 can be ensured, and the reliability of the seam 13 formed by sizing the opening 12 can be further ensured.
In the second step of the present invention, the length of the suture thread 2 inserted into the anchor hole 11 is controlled to be greater than the length of the gap 12. Operation like this can guarantee that stylolite 2 has certain length of establishing of wearing to establish, and stylolite 2 and anchor eye 11's fastness of connection is better like this.
In the embodiment of the invention, the wire pressing joint sleeve 1 is made of stainless steel, and in the first step, the notch 12 is formed by laser cutting.
The number of the slits 12 is preferably 3-6 (such as 3, 4, 5, or 6) in consideration of the manufacturing cost of the slits 12 and the firmness of the seam 12 formed by welding the seam 13 to the suture 2. When the opening 12 is processed and manufactured, the plurality of openings 12 are uniformly distributed along the circumferential direction of the wire pressing joint sleeve 1, and the size of each opening 12 is the same, so that the processing and manufacturing are convenient, and the firmness of connection between the formed opening 12 and the suture line 2 after the welding of the seam 13 can be effectively ensured.
Further, the size of each gap 12 along the length direction of the crimp sleeve 1 is not more than 1/2 of the total length of the crimp sleeve 1, and the penetration length of the suture 2 is not more than 1/2 of the total length of the crimp sleeve 1. Such a design does not interfere with the subsequent operation of placing other components (e.g., a needle) within the crimp fitting sleeve 1.
The suture 2 of the present invention generally has an outer diameter of about 0.24mm, a crimp fitting sleeve 1 having an outer diameter of 0.45-0.55mm (e.g., 0.45mm, 0.47mm, 0.50mm, 0.52mm, 0.55mm, and any interval therebetween), and a wall thickness of 0.045-0.055mm (e.g., 0.045mm, 0.047mm, 0.050mm, 0.052mm, 0.055mm, and any interval therebetween). The design is beneficial to the processing and the extrusion forming of the opening 12, and can ensure that the connection firmness between the formed opening 12 and the seam 13 after welding is better.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The anchor hole connecting method of the blood vessel stitching instrument is characterized in that the blood vessel stitching instrument comprises a wire pressing joint sleeve and a stitching wire, wherein the wire pressing joint sleeve is cylindrical, and an anchor hole is formed in the wire pressing joint sleeve;
the anchor hole connecting method comprises the following steps:
cutting at least three gaps at one end of a wire pressing joint sleeve to enable the sum of circumferential sizes of the cut end part of the wire pressing joint sleeve to be matched with the outer diameter of a suture line;
step two, one end of the suture is penetrated in the anchor hole from the notch end of the wire pressing joint sleeve;
step three, extruding and shaping each opening on the wire pressing joint sleeve into a seam by using a sleeve positioning piece;
and step four, welding the seam, and removing the sleeve positioning piece after welding to complete the anchor hole connection of the blood vessel stitching instrument.
2. The anchor eye connecting method of a blood vessel suture instrument as claimed in claim 1, wherein said sleeve positioning member comprises a positioning section and a shaping section which are connected, said positioning section is provided with a positioning hole, said shaping section is provided with a shaping hole, said positioning hole is communicated with said shaping hole, said positioning hole is a cylindrical hole, the radial dimension of said positioning hole is adapted to the outer diameter dimension of said wire crimping sleeve, and the radial dimension of said shaping hole is gradually reduced along the direction departing from said positioning hole;
the third step is specifically as follows: sequentially penetrating the opening end of the line pressing joint sleeve through the positioning hole and the shaping hole, and at least partially exposing the opening end of the line pressing joint sleeve to the shaping section, wherein each opening on the opening end of the line pressing joint sleeve is extruded and shaped into a joint under the action of the shaping section;
the fourth step is specifically as follows: and welding the joint exposed out of the shaping section, and pushing the sleeve positioning piece out after the welding is finished to finish the anchor hole connection of the blood vessel stitching instrument.
3. The anchor eye connecting method of a blood vessel suture instrument as claimed in claim 2, wherein in step three, the length of the exposed portion of the slit end of the crimp connector sleeve is 1/3-1/2 of the length of the slit.
4. The anchor eye connecting method of a blood vessel suturing device as claimed in claim 2, wherein the sleeve positioning member further comprises a guiding section connected to an end of the positioning section facing away from the shaping section, the guiding section being provided with a guiding hole communicating with the positioning hole, the guiding hole having a radial dimension gradually increasing in a direction facing away from the positioning hole;
the third step is specifically as follows: and the opening end of the wire pressing joint sleeve sequentially penetrates through the guide hole, the positioning hole and the shaping hole and is at least partially exposed out of the shaping section, and each opening on the opening end of the wire pressing joint sleeve is extruded and shaped into a joint under the action of the shaping section.
5. The anchor eye connecting method of a blood vessel suturing device as claimed in claim 4, wherein in step three, during the passing movement of the slit end of the crimp sleeve, when the other end of the crimp sleeve is flush with the end of the guide section facing away from the positioning section, the passing movement of the crimp sleeve is stopped.
6. The anchor eye connecting method of a blood vessel suture instrument as claimed in claim 4, wherein said guide section, said positioning section and said shaping section have the same outer diameter, and said guide section, said positioning section and said shaping section are of an integral structure.
7. The anchor eye connecting method of a vascular suturing device as claimed in claim 1, wherein in the second step, the length of the suture thread inserted into the anchor eye is controlled to be greater than the length of the gap.
8. The anchor eye connection method of a blood vessel suture instrument as claimed in claim 1, wherein the wire pressing joint sleeve is made of stainless steel, and in the first step, the notch is cut by laser;
the number of the gaps is 3-6, the gaps are uniformly distributed along the circumferential direction of the wire pressing joint sleeve, and the size of each gap is the same.
9. The method of claim 8, wherein each slit has a dimension along the length of the crimp sleeve of no more than 1/2 of the total length of the crimp sleeve, and the suture is threaded through a length of no more than 1/2 of the total length of the crimp sleeve.
10. The method for connecting the anchoring openings of the vascular suture instrument as claimed in any one of claims 1 to 9, wherein the crimp fitting sleeve has an outer diameter of 0.45 to 0.55mm and a wall thickness of 0.045 to 0.055 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784788.4A CN115106651A (en) | 2022-07-05 | 2022-07-05 | Anchor hole connecting method of blood vessel stitching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210784788.4A CN115106651A (en) | 2022-07-05 | 2022-07-05 | Anchor hole connecting method of blood vessel stitching instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115106651A true CN115106651A (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210784788.4A Pending CN115106651A (en) | 2022-07-05 | 2022-07-05 | Anchor hole connecting method of blood vessel stitching instrument |
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| CN (1) | CN115106651A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509479A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector of vascular suture device and process for fixing suture line |
| CN116509478A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector and crimping assembly of vascular stapler |
-
2022
- 2022-07-05 CN CN202210784788.4A patent/CN115106651A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116509479A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector of vascular suture device and process for fixing suture line |
| CN116509478A (en) * | 2023-04-18 | 2023-08-01 | 南京思脉德医疗科技有限公司 | Crimping connector and crimping assembly of vascular stapler |
| CN116509479B (en) * | 2023-04-18 | 2023-11-07 | 南京思脉德医疗科技有限公司 | Crimping connector of vascular suture device and process for fixing suture line |
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