Novel stitching instrument line pressing connector connecting structure

Abstract

The utility model discloses a novel stitching instrument line pressing connector connecting structure which comprises a line pressing connector body, the line pressing connector body is composed of an equal-diameter part and a conical closing-up part installed at one end of the equal-diameter part, an observation through hole is formed in one side of the equal-diameter part, and an observation hole is formed in the other side of the equal-diameter part. A suture line is connected to the end, located at the conical closing-up part, in the line pressing connector body through a clamping connector. The suture pressing connector has the advantages that the observation through hole structure is arranged on the suture pressing connector body, so that the position, penetrating into the suture pressing connector body, of a suture line after hot melting can be observed, and the depth of the size of the connecting part of the suture line and the suture pressing connector body is accurately positioned; and compared with the prior art that barbs are machined in the line pressing connector body, machining of the observation through holes is more convenient, the uncertainty after the line pressing connector body and the suture line are connected is effectively reduced, the operation efficiency is improved, and the operation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of vascular suture clamp connector technology, specifically to a novel suture clamp connector connection structure. Background Technology

[0002] Vascular suture devices are hemostatic instruments used after interventional surgery. In recent years, they have become increasingly popular in medical institutions due to their significant hemostatic effects, ease of operation, and minimal side effects. The reliability of the anchor hole suture assembly, a key component of the vascular suture device, is a critical technical issue. This is because the parts are small, the suture material is polytetrafluoroethylene (PTFE), which has a low coefficient of friction, making it difficult to manufacture and ensuring connection strength.

[0003] Currently, to address the issue of reliable connection between anchor holes and sutures, the main methods for connecting vascular sutures include direct compression, adhesive compression, and heat-sealing compression with a backstop hook. The direct compression method involves threading the PTFE suture through the pressure end of the anchor hole and connecting it by compression. However, because PTFE sutures are expanded polytetrafluoroethylene (ePTFE) and the material is slippery, achieving ideal connection strength is difficult, resulting in poor connection stability between the anchor hole and the suture. The adhesive compression method involves gluing the PTFE suture and then threading it through the pressure end of the anchor hole, connecting the two by compression. However, because the adhesive... The small contact area does not significantly improve the connection strength between the anchor hole and the suture. Furthermore, the use of chemical adhesives poses a significant risk of chemical incompatibility with organisms. The anti-reverse hook heat-sealing extrusion method involves heat-sealing the head of the PTFE suture and inserting it into the anchor hole's pressure end. The barb formed by the anchor hole then presses the suture into the thread, using a purely physical method for extrusion connection. However, the barb forming the anchor hole is difficult to process, and the size of the PTFE suture head heat-sealed is hard to control. If the heat-sealed size is too large, it cannot enter the anchor hole; if the heat-sealed size is too small, the barb cannot press into the thread.

[0004] In addition, existing technologies also use two connection methods to connect the suture joint and the suture: heat sealing the observation hole and using pins for clamping. When using the heat sealing observation hole method, in actual production, the size of the suture joint is small, and the size of the heat sealing head inside the PTFE suture joint is difficult to control, which may affect the needle tip alignment. As for the pin clamping method, this method is prone to poor connection strength. Since PTFE suture is a bulky material and the material is slippery, it is difficult to achieve the ideal connection strength by direct compression. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The technical problem to be solved by this utility model is to provide a novel suture presser connector connection structure that can accurately locate the depth of the connection between the suture and the presser connector body, while also reducing the uncertainty after the presser connector and the suture are connected, improving operational efficiency and increasing the safety of the operation.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: This utility model proposes a novel suture presser connector connection structure, including a presser connector body, which is composed of an equal diameter portion and a tapered closing portion installed at one end of the equal diameter portion. An observation through hole is provided on one side of the equal diameter portion, and a suture thread is connected to one end of the tapered closing portion of the presser connector body through a snap-fit ​​connector.

[0009] Furthermore, the snap-fit ​​connector is composed of a constant diameter section and a narrowed section, wherein the diameter of the constant diameter section is 0.3mm-0.6mm, and the overall length of the snap-fit ​​connector is 0.3mm-0.4mm.

[0010] By adopting the above technical solution, the snap-fit ​​connector is mainly used to achieve reliable snap-fit ​​installation of the suture thread within the snap-fit ​​connector body.

[0011] Furthermore, the cross-sectional dimension of the observation through hole near the anchor hole within the body of the wire connector is smaller than the cross-sectional dimension of the end away from the anchor hole.

[0012] By adopting the above technical solution, the position of the suture thread after heat fusion entering the body of the pressure joint can be observed through the observation hole, and the depth of the connection between the suture thread and the body of the pressure joint can be accurately located.

[0013] Furthermore, the observation through hole penetrates the side wall of the wire connector body, and the observation through hole has a conical structure.

[0014] By adopting the above technical solution, the reliable arrangement of the observation through hole on the wire connector body can be ensured, facilitating observation.

[0015] Furthermore, the suture is made of PTFE, and the suture and the connector are an integral structure.

[0016] By adopting the above technical solution, the suture made of PTFE material makes the suturing process smoother, and the soft material avoids damage to blood vessels.

[0017] Furthermore, the body of the wire clamp is made of any one of stainless steel, platinum-tungsten alloy, platinum-iridium alloy, or tantalum alloy.

[0018] By adopting the above technical solution, the suture connector body is a suture fixation structure device used for vascular suture, and the structural strength of the suture connector body made of the above-mentioned metal material is guaranteed to a certain extent.

[0019] Furthermore, a metal clip is also installed outside the wire connector body on one side of the observation through hole.

[0020] By adopting the above technical solution, the suture connector body can be connected to the corresponding component on the vascular suture device.

[0021] Furthermore, the outer diameter of the equal-diameter section on the snap connector is larger than the diameter of the suture thread, and the taper of the constricted portion on the snap connector is the same as the taper of the tapered constriction portion on the pressure connector body.

[0022] By adopting the above technical solution, the snap-fit ​​connector can be stably and securely secured within the wire clamp connector body.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, this utility model has the following advantages:

[0025] To address the current issues in connecting sutures and pressure sutures, which primarily rely on heat-sealing observation holes and pin-embedding, this invention addresses the challenges of inconsistent suture strength. Heat-sealing observation holes present difficulties in actual production due to the small size of the pressure suture connector and the difficulty in controlling the size of the heat-sealing head inside the PTFE suture connector, potentially affecting needle alignment. Pin-embedding, on the other hand, is prone to poor connection strength due to the slippery nature of PTFE sutures and the difficulty in achieving ideal connection strength through direct compression. This invention addresses these issues by incorporating observation holes on the pressure suture connector body. These holes allow for observation of the position of the heat-fused suture within the connector body, accurately locating the depth of the connection between the suture and the connector. Furthermore, the observation holes are more convenient to manufacture than the barbs found in existing technologies, effectively reducing uncertainty after the connection between the connector and the suture, improving operational efficiency, and enhancing surgical safety. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a novel suture presser connector connection structure described in this utility model;

[0027] Figure 2 This is a front sectional view of the connection part between the connector body and the suture in a novel suture presser connector connection structure described in this utility model;

[0028] Figure 3 This is a schematic diagram of the connector body in a novel stitching connector connection structure described in this utility model.

[0029] The annotations in the attached figures are explained as follows:

[0030] 1. Wire clamp body; 101. Equal diameter section; 102. Tapered end section; 2. Metal buckle; 3. Seam thread; 4. Observation hole; 5. Snap connector. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] like Figures 1-3 As shown, a novel suture clamping connector connection structure in this embodiment includes a clamping connector body 1, which is a suture fixing structure device for vascular suture. The clamping connector body 1 is composed of an equal diameter portion 101 and a tapered constriction portion 102 installed at one end of the equal diameter portion 101. An observation through hole 4 is provided on one side of the equal diameter portion 101. A suture 3 is connected to one end of the tapered constriction portion 102 inside the clamping connector body 1 via a clamping connector 5. The clamping connector 5 is mainly used to reliably clamp the suture 3 inside the clamping connector body 1. The cross-sectional dimension of the observation through hole 4 near the anchor hole inside the clamping connector body 1 is smaller than the cross-sectional dimension away from the anchor hole. Through the observation through hole 4, the position of the heat-fused suture 3 entering the clamping connector body 1 can be observed, accurately locating the depth of the connection between the suture 3 and the clamping connector body 1.

[0033] like Figures 1-3 As shown, in this embodiment, the snap-fit ​​connector 5 is composed of a constant diameter section and a narrowed section, wherein the diameter of the constant diameter section is 0.3mm-0.6mm, the overall length of the snap-fit ​​connector 5 is 0.3mm-0.4mm, the observation through hole 4 penetrates the side wall of the wire connector body 1, and the observation through hole 4 has a conical structure, which can ensure the reliable arrangement of the observation through hole 4 on the wire connector body 1 and facilitate observation.

[0034] like Figures 1-3 As shown, in this embodiment, the suture 3 is made of PTFE. The suture 3 and the clamp connector 5 are an integral structure. The use of PTFE material for the suture 3 makes the suturing process smoother and the material is soft to avoid damaging blood vessels. The clamp connector body 1 is made of any one of stainless steel, platinum-tungsten alloy, platinum-iridium alloy, and tantalum alloy. The clamp connector body 1 made of the above metal materials has a certain structural strength.

[0035] like Figures 1-3 As shown, in this embodiment, a metal buckle 2 is also installed on the side of the observation hole 4 outside the suture connector body 1, which can connect the suture connector body 1 to the corresponding component on the vascular suture device. The outer diameter of the equal diameter section on the buckle 5 is larger than the diameter of the suture 3. The taper of the constricted part on the buckle 5 is the same as the taper of the tapered constriction part 102 on the suture connector body 1, which can ensure that the buckle 5 is stably locked in the suture connector body 1.

[0036] The specific implementation process of this embodiment is as follows: When connecting the suture connector body 1 to the suture 3, a clamping connector 5 is first processed at the connection end where the suture 3 is inserted into the suture connector body 1 using an external heat fusion assembly. Then, the clamping connector 5 is simply inserted into the rivet hole provided in the suture connector body 1 to achieve the connection between the suture 3 and the suture connector body 1. After that, the suture connector body 1 is connected to the corresponding component on the vascular suture closure device to put the connection structure into use. During the connection process, by setting an observation through hole 4 on the suture connector body 1, the position of the heat-fused suture 3 entering the suture connector body 1 can be observed through the observation through hole 4 during the connection, accurately locating the depth of the connection part between the suture 3 and the suture connector body 1. Moreover, processing the observation through hole 4 is more convenient than processing barbs in the suture connector body 1 in the prior art, effectively reducing the uncertainty after the connection between the suture connector body 1 and the suture 3, improving operational efficiency, and increasing the safety of the operation.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of suture wire connector connection structure, characterized in that: The pressure wire joint body (1) is composed of an equal diameter part (101) and a tapered necking part (102) installed at one end of the equal diameter part (101), wherein an observation through hole (4) is formed on one side of the equal diameter part (101), and a suture (3) is connected to one end of the tapered necking part (102) in the pressure wire joint body (1) through a clamping joint (5).

2. A new type of suture wire connector joint connection structure according to claim 1, characterized in that: The clamping joint (5) is composed of an equal diameter section and a necking section, wherein the diameter of the equal diameter section is 0.3-0.6mm, and the overall length of the clamping joint (5) is 0.3-0.4mm.

3. A new type of suture wire connector joint connection structure according to claim 1, characterized in that: The cross-sectional size of the observation through hole (4) near one end of the anchor hole in the pressure wire joint body (1) is smaller than that far from the anchor hole.

4. A new type of suture wire connector joint connection structure according to claim 1, characterized in that: The observation through hole (4) penetrates the side wall of the pressure wire joint body (1), and the observation through hole (4) is a conical structure.

5. A new type of suture wire connector joint connection structure according to claim 1, characterized in that: The material of the suture (3) is PTFE, and the suture (3) and the clamping joint (5) are an integral structure.

6. A new type of suture wire connector joint structure according to claim 1, characterized in that: The material of the pressure wire joint body (1) is any one of stainless steel, platinum-tungsten alloy, platinum-iridium alloy, and tantalum alloy.

7. A new type of suture wire connector joint connection structure according to claim 1, characterized in that: A metal buckle (2) is also installed on one side of the observation through hole (4) outside the pressure wire joint body (1).

8. A new type of suture wire connector joint structure according to claim 2, characterized in that: The outer diameter of the equal diameter section on the clamping joint (5) is larger than the diameter of the suture (3), and the taper of the necking section on the clamping joint (5) is the same as that of the tapered necking part (102) on the pressure wire joint body (1).

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