Assembly device of blood vessel stitching instrument

Abstract

The utility model provides an assembling device of a blood vessel stitching instrument, and belongs to the technical field of assembling tools of the blood vessel stitching instrument. The device comprises a base, at least one positioning assembly is arranged on the base and used for positioning the positions of a sliding rail assembly and a sewing assembly, the positioning assembly comprises a first groove part and a second groove part which are communicated with each other, the shape of the first groove part is matched with that of the sewing assembly, and the shape of the second groove part is matched with that of the sewing assembly. The shape of the second groove part is matched with the state that the sliding rail assembly pushes the wire pin to be closed. The technical problems that an existing blood vessel stitching instrument is large in assembling error and low in efficiency are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vascular suture device assembly tools, and in particular relates to an assembly device for a vascular suture device. Background Art

[0002] Interventional surgery is to make an incision in the human artery and vein to allow the interventional device to enter the desired surgical site through the blood vessels. Since some vascular incisions are large and anticoagulants and platelet-lowering drugs are used during surgery, it is more difficult to close and stop bleeding and recover from large vascular incisions. Therefore, the vascular suture system is currently used for hemostasis.

[0003] like Figure 1-4 As shown, the vascular suture device 3 comprises a needle 6, a thread foot 1, a positioning buckle 7, a suture assembly 301, a slide rail assembly 5, and a nickel-titanium wire 4. The thread foot 1 is hinged at the end of the suture assembly 301, and the nickel-titanium wire 4 is arranged to slide along the suture assembly 301, and one end of the thread foot 1 is connected to the thread foot 1, and the other end is fixed to the slide rail assembly 5. The operation pushes the slide rail assembly 5 to slide, and the slide rail assembly 5 pulls the nickel-titanium wire 4 to slide along the body of the suture assembly 301, thereby pulling the thread foot 1 to complete the rotation around the hinge point to realize the opening and closing of the thread foot 1.

[0004] Specifically, the slide rail assembly 5 comprises a fixed frame 501 and a slide rail 502. The fixed frame 501 is slidably installed in the body of the vascular suture device 3. A part of the slide rail 502 is arranged in the fixed frame 501 and fixedly connected to the fixed frame 501. Another part of the slide rail 502 extends out of the fixed frame 501. A push ear 503 is fixedly connected to one end of the slide rail 502 away from the fixed frame 501. A glue point hole 504 is provided on the slide rail 502. The nickel-titanium wire 4 is connected to the glue point hole 504 by UV glue light curing. Thus, the push and pull operation of the push ear 503 can realize the rotation of the wire foot 1 through the nickel-titanium wire 4. Figure 3 , Figure 4 As shown, the position where the nickel-titanium wire 4 is solidly connected to the slide rail assembly 5 determines the opening angle of the stitch leg 1. The positioning buckle 7 is fixedly arranged on the suture assembly 301 between the stitch leg 1 and the slide rail assembly 5.

[0005] The suturing process requires that the needle 6 be connected to the thread foot 1, and the previous step requires that the thread foot 1 connected to the needle 6 be opened, as shown in the following example. Figure 1 As shown, the thread foot 1 is parallel to the blood vessel wall 2 to support the blood vessel wall 2, and then the needle 6 is driven out. Figure 2 shown.

[0006] The correct opening angle of the thread pin on the vascular suture device can ensure the correct docking of the needle; and the opening angle of the thread pin depends on the relative positions of the internal parts of the slide rail assembly, which requires the production process to strictly guarantee the relevant assembly error size. This assembly error is usually required to be within 0.02mm, and the existing ordinary manual assembly method requires measuring the fixed position of the nickel-titanium wire during the assembly process, which has low assembly efficiency and low yield rate; in addition, after the nickel-titanium wire and the slide rail assembly are glued and cured, they need to be transferred to another workstation to inspect the assembly effect. The step-by-step operation of assembly and inspection further reduces production efficiency.

[0007] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0008] The utility model aims to provide an assembly device for a vascular suture device, so as to solve the technical problems of large assembly error and low efficiency of the existing vascular suture device assembly.

[0009] In order to achieve the above-mentioned purpose, the assembly device of the vascular suture device of the utility model provides the following technical solutions:

[0010] A vascular suturing device assembly device includes a base, on which is disposed at least one positioning assembly for positioning a slide rail assembly and a suturing assembly, wherein the positioning assembly includes a first groove portion and a second groove portion that are interconnected, wherein the shape of the first groove portion is adapted to the shape of the suturing assembly, and the shape of the second groove portion is adapted to the state in which the slide rail assembly pushes the thread pin to close.

[0011] As a further optimized technical solution, a first limiting groove is provided at one end of the first groove portion away from the second groove portion, and the first limiting groove abuts against one end of the line foot in a fully expanded state. An extension groove is provided on the second groove portion, and the extension groove is used to locate the state of the slide rail assembly when the line foot is opened.

[0012] As a further optimized technical solution, the first groove portion includes a long groove and a positioning groove, which is used to place a suture assembly including a stitch in a closed state. The positioning groove is vertically arranged on the long groove for placing a positioning buckle, and the first limiting groove is arranged on the long groove.

[0013] As a further optimized technical solution, the second groove portion includes an installation groove and a second limiting groove, the installation groove is used to place the fixed frame, the second limiting groove is used to place the sliding rail, and the second limiting groove is provided with a third limiting groove at one end away from the installation groove, and the third limiting groove is used to place the push ear when the line foot is closed.

[0014] As a further optimized technical solution, the extension groove includes a first extension groove and a second extension groove, the first extension groove is used to position the fixing frame, and the second extension groove is used to position the sliding rail.

[0015] As a further optimized technical solution, the mounting groove extends in a direction away from the first groove portion to form the first extension groove.

[0016] As a further optimized technical solution, the second extension groove is connected to the third limiting groove, and the second extension groove includes a sliding groove and a fourth limiting groove. The sliding groove is used to adapt to the sliding rail, and the fourth limiting groove is arranged at the end of the sliding groove away from the third limiting groove to adapt to the pushing ear when the wire foot is fully extended.

[0017] As a further optimized technical solution, three positioning components are arranged side by side on the base.

[0018] As a further optimized technical solution, the three positioning components are aligned.

[0019] As a further optimized technical solution, the first limiting groove includes a movable portion and an abutting portion that are interconnected, the shape of the abutting portion is adapted to the shape of the line foot, and the movable portion is used for allowing the line foot to rotate to the abutting portion.

[0020] Beneficial effect: A positioning assembly is provided on the base to locate the positions of the slide rail assembly and the suture assembly, wherein the shape of the first groove portion is adapted to the shape of the suture assembly, and the shape of the second groove portion is adapted to the state of the slide rail assembly pushing the wire foot to close, so that when fixing the nickel-titanium wire, the relative position of the suture assembly and the slide rail assembly has been accurately defined in the base, and only one end of the nickel-titanium wire needs to be connected to the wire foot and the other end is placed on the glue dispensing hole of the slide rail assembly, and then the nickel-titanium wire can be accurately fixed in the slide rail assembly by dispensing glue in the glue dispensing hole and curing, thereby effectively ensuring the dimensional accuracy of the assembly, reducing the assembly error, and during the assembly process, there is no need to repeatedly measure and confirm the fixed position of the nickel-titanium wire, thereby improving the assembly qualification rate.

[0021] In addition, by setting the limit grooves and extension grooves, the assembly effect can be directly inspected on the base after the assembly is completed, and the assembly and inspection are completed in one go, further improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0023] Figure 1 This is a schematic diagram of the line foot of the vascular suture device supporting the blood vessel;

[0024] Figure 2 It is a schematic diagram of the needle of the vascular suture device in the punching state;

[0025] Figure 3 It is a schematic diagram of the connection status of the vascular suture device thread pins;

[0026] Figure 4 Another schematic diagram of the connection state of the vascular suture device pins;

[0027] Figure 5 It is a schematic diagram of the overall structure of an embodiment of an assembly device of a vascular suture device of the utility model;

[0028] Figure 6 for Figure 5 Schematic cross-sectional view along the AA direction;

[0029] Figure 7 for Figure 5 A schematic cross-sectional view along the BB direction;

[0030] Figure 8 This is a schematic diagram of the state of the utility model used to fix the nickel-titanium wire;

[0031] Fig. 9 for Figure 8 A schematic cross-sectional view along the CC direction;

[0032] Fig.10 This is a schematic diagram of the state of the utility model for testing the opening angle of the molding;

[0033] Fig.11 for Fig.10 Schematic cross-sectional view along the DD direction.

[0034] In the figure: 1. stitch; 2. blood vessel; 3. vascular suture device; 301. suture assembly; 4. nickel-titanium wire; 5. slide rail assembly; 501. fixed frame; 502. slide rail; 503. push ear; 504. glue dispensing hole; 6. needle; 7. positioning buckle; 8. base; 9. first groove; 901. long groove; 902. positioning groove; 10. second groove; 1001. installation groove; 1002. second limiting groove; 1003. third limiting groove; 11. first limiting groove; 1101. movable part; 1102. abutment part; 12. first extension groove; 13. second extension groove; 1301. slide groove; 1302. fourth limiting groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0036] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0038] The utility model provides an assembly device for a vascular suturing device, which provides a positioning component on a base to position a slide rail component and a suturing component during assembly, thereby accurately defining the relative position of the suturing component and the slide rail component in the base before assembling the nickel-titanium wire, thereby effectively ensuring the dimensional accuracy of the assembly and improving the qualified rate of the assembly.

[0039] like Figure 5 , Figure 6 , Figure 7 As shown, the assembly device of the vascular suturing device includes a base 8, on which a positioning component is provided for positioning the positions of the slide rail component 5 and the suturing component 301, and the positioning component includes a first groove portion 9 and a second groove portion 10 which are interconnected, and the shape of the first groove portion 9 is adapted to the shape of the suturing component 301, and the shape of the second groove portion 10 is adapted to the state in which the slide rail component 5 pushes the thread foot 1 to close.

[0040] The first groove portion 9 includes a long groove 901 and a positioning groove 902, which is used to place the suture assembly 301 including the stitch 1 in a closed state. The positioning groove 902 is vertically arranged on the long groove 901 and is used to place the positioning buckle 7. The position of the positioning groove 902 is used to limit the accurate installation position of the first groove portion 9.

[0041] The second groove portion 10 includes a mounting groove 1001 and a second limiting groove 1002. The mounting groove 1001 is used to place the fixed frame 501, and the second limiting groove 1002 is used to place the sliding rail 502. The second limiting groove 1002 is provided with a third limiting groove 1003 at one end away from the mounting groove 1001. The third limiting groove 1003 is used to place the push ear 503 when the line foot 1 is in a closed state.

[0042] In this way, when assembling the nickel-titanium wire 4, the wire foot 1 is in a closed state, one end of the nickel-titanium wire 4 is connected to the wire foot, and the other end is conveniently and accurately placed on the glue hole 504, and then UV glue is injected into the glue hole 504, and ultraviolet light is used for 15S to cure the UV glue, thereby completing the fixation of the nickel-titanium wire 4 and the slide rail assembly 5.

[0043] In order to facilitate the inspection of the assembly effect, a first limiting groove 11 is provided at one end of the first groove portion 9 away from the second groove portion 10, and the first limiting groove 11 abuts against one end of the line foot 1 in a fully expanded state. An extension groove is provided on the second groove portion 10, and the extension groove is used to locate the state of the slide rail assembly 5 when the line foot 1 is opened.

[0044] Specific as Figure 7 , 10 , Fig.11 As shown, a first limiting groove 11 is provided at one end of the long groove 901 away from the second groove portion 10, and the first limiting groove 11 can abut against one end of the line foot 1 in a fully expanded state, and specifically includes a movable portion 1101 and an abutting portion 1102 that are interconnected, and the shape of the abutting portion 1102 is adapted to the shape of the line foot 1, and the movable portion 1101 is used to provide space for the line foot 1 to rotate to the abutting portion 1102.

[0045] like Figure 5 , 8 , Fig. 9 As shown, the extension groove includes a first extension groove 12 and a second extension groove 13. The first extension groove 12 is used to position the fixing frame 501, and the second extension groove 13 is used to position the sliding rail 502. The cross-sectional shape of the first extension groove 12 is the same as that of the mounting groove 1001. The mounting groove 1001 extends in a direction away from the first groove portion 9 to form the first extension groove 12.

[0046] The second extension groove 13 is connected to the third limiting groove 1003, and the second extension groove 13 includes a slide groove 1301 and a fourth limiting groove 1302. The slide groove 1301 is used to adapt to the sliding rail 502, and the fourth limiting groove 1302 is set at an end of the slide groove 1301 away from the third limiting groove 1003 to adapt to the push ear 503 when the wire foot 1 is fully extended.

[0047] In this way, after the nickel-titanium wire 4 is fixed to the slide rail assembly 5, the push ear 503 is pulled to the right end, and the ear 503 is placed from the third limiting groove 1003 into the fourth limiting groove 1302. At this time, the assembly effect can be judged by observing the opening angle of the line foot 1.

[0048] Furthermore, in order to improve assembly efficiency, at least one positioning component is provided on the base 8. In the present invention, for economic / efficiency considerations, three positioning components are arranged side by side on the base 8, so that three vascular suture devices can be assembled at one time.

[0049] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. An assembly device for a vascular suture device, characterized in that: The invention comprises a base (8), on which at least one positioning component is arranged for positioning a slide rail component (5) and a suturing component (301), wherein the positioning component comprises a first groove portion (9) and a second groove portion (10) which are connected to each other, wherein the shape of the first groove portion (9) is adapted to the shape of the suturing component (301), and the shape of the second groove portion (10) is adapted to the state in which the slide rail component (5) pushes the stitch foot (1) to close.

2. The assembling device of the vascular suture device according to claim 1, characterized in that: A first limiting groove (11) is provided at one end of the first groove portion (9) away from the second groove portion (10), the first limiting groove (11) abutting against one end of the line foot (1) in a fully extended state, and an extension groove is provided on the second groove portion (10), the extension groove being used to locate the state of the slide rail assembly (5) when the line foot (1) is opened.

3. The assembling device of the vascular suturing device according to claim 2, characterized in that: The first groove portion (9) comprises a long groove (901) and a positioning groove (902), which are used to place a sewing assembly (301) including a stitch (1) in a closed state; the positioning groove (902) is vertically arranged on the long groove (901) and is used to place a positioning buckle (7); and the first limiting groove (11) is arranged on the long groove (901).

4. The assembling device of the vascular suturing device according to claim 2, characterized in that: The second groove portion (10) comprises a mounting groove (1001) and a second limiting groove (1002), wherein the mounting groove (1001) is used to place the fixing frame (501), and the second limiting groove (1002) is used to place the sliding rail (502). A third limiting groove (1003) is provided at one end of the second limiting groove (1002) away from the mounting groove (1001), and the third limiting groove (1003) is used to place a pushing ear (503) when the molding foot (1) is in a closed state.

5. The assembling device of the vascular suturing device according to claim 4, characterized in that: The extension groove comprises a first extension groove (12) and a second extension groove (13); the first extension groove (12) is used to position the fixing frame (501), and the second extension groove (13) is used to position the sliding rail (502).

6. The assembling device of the vascular suturing device according to claim 5, characterized in that: The installation groove (1001) extends in a direction away from the first groove portion (9) to form the first extension groove (12).

7. The assembling device of the vascular suturing device according to claim 5, characterized in that: The second extension groove (13) is connected to the third limiting groove (1003), and the second extension groove (13) includes a slide groove (1301) and a fourth limiting groove (1302). The slide groove (1301) is used to adapt to the sliding rail (502), and the fourth limiting groove (1302) is arranged at an end of the slide groove (1301) away from the third limiting groove (1003) to adapt to the pushing ear (503) when the wire foot (1) is fully extended.

8. The assembling device of the vascular suturing device according to claim 1, characterized in that: Three positioning components are arranged side by side on the base (8).

9. The assembling device of the vascular suturing device according to claim 6, characterized in that: The three positioning components are aligned and arranged.

10. The assembling device of the vascular suturing device according to claim 3, characterized in that: The first limiting groove (11) comprises a movable portion (1101) and an abutting portion (1102) which are connected to each other, the shape of the abutting portion (1102) is adapted to the shape of the molding foot (1), and the movable portion (1101) is used for allowing the molding foot (1) to rotate to the abutting portion (1102).

Images