Puncture threading device

Abstract

The utility model relates to a puncture thread passing device which comprises a handle, and the handle is provided with a containing part. The puncture tube is detachably connected to one end part of the handle; and the suture feeding device is installed in the middle of the handle, the suture feeding device is selectively arranged in the containing part, and the suture feeding device can push a suture line into the puncture tube. The method has the effect of switching the working modes according to different operation environments.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a puncture suture device. Background Technology

[0002] A suture guide is a widely used tool in the field of medical surgery, primarily used to pass sutures through tissues or organs for precise suturing. With the development of modern medical technology, the importance of suture guides as suturing aids has become increasingly prominent. They not only improve surgical efficiency but also reduce patient trauma in minimally invasive surgeries, while simultaneously enhancing surgical safety and success rates. As minimally invasive surgical techniques continue to advance, the demand for suture guides continues to grow, and their functional and structural design has gradually become a focus of research.

[0003] In the existing technology, the following methods are usually used to solve the problem of suture puncture: one is to use a simple puncture needle and manually push the suture. This method relies on the operator's experience but is more flexible; the other is to use a fixed puncture device to push the suture into the target position through a preset channel. This method can improve the stability of the operation but has poor adaptability.

[0004] However, the above-mentioned conventional methods have a common drawback in practical applications: they cannot adjust the suture delivery mode to adapt to different operating environments, which affects the accuracy and efficiency of surgical operations. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a puncture and thread-passing device.

[0006] The piercing and thread-passing device provided in this application adopts the following technical solution:

[0007] A piercing wire guide, comprising:

[0008] The handle has a receiving portion;

[0009] A puncture tube, detachably connected to one end of the handle; and

[0010] A suture feeding device is installed in the middle of the handle. The suture feeding device can be selectively placed in the receiving part and can push the suture into the puncture tube.

[0011] By adopting the above technical solutions, the suture feeder achieves convenient suture delivery. The receiving section on the handle provides storage space for the suture feeder, making the device more compact and portable when not in use. The detachable connection between the puncture tube and the handle facilitates tube replacement or maintenance, extending the device's lifespan and applicability. The suture feeder can flexibly switch between working and idle states and has the ability to accurately push the suture into the puncture tube, observe the suture's condition, prevent suture jamming, and facilitate adjustments, thus improving the efficiency and precision of surgical procedures.

[0012] Optionally, the receiving portion includes a trapezoidal groove and a slot, the slot being disposed at the extreme position of the wire feeding device at the tail of the handle, and the trapezoidal groove being disposed at the extreme position of the wire feeding device at the front of the handle.

[0013] By adopting the above technical solution, the position of the thread feeding device within the handle can be limited by the trapezoidal groove and the locking slot. Specifically, the locking slot is located at the extreme position at the tail of the handle, ensuring that the thread feeding device is stably fixed when idle, preventing shaking or falling off; the trapezoidal groove is located at the extreme position at the front of the handle, providing a clear working position for the thread feeding device, ensuring its precise positioning when pushing the suture thread, thereby improving the operational reliability and efficiency of the suture feeder.

[0014] Optionally, both the handle and the puncture tube are hollow structures that are interconnected, and the hollow structures are interlocked.

[0015] By adopting the above technical solution, both the handle and the puncture tube are designed with a through-hole structure, and these hollow structures interlock to form a continuous channel. This design allows the suture to be smoothly transferred from the handle to the puncture tube, reducing resistance during the transfer process, improving suture passing efficiency, and ensuring the stability and reliability of the suture passer during use.

[0016] Optionally, the wire feeding device includes a roller and a fixing frame. The fixing frame is disposed between the trapezoidal groove and the slot. The roller is rotatably mounted on the fixing frame. The rotation of the fixing frame drives the roller to either be in the trapezoidal groove to enter the working state or in the slot to enter the idle state.

[0017] By adopting the above technical solutions, the suture feeding device of the suture guide can achieve efficient suture delivery. Specifically, the cooperative design of the roller and the fixing frame allows the suture feeding device to flexibly switch positions between the trapezoidal groove and the slot. When the roller is in the trapezoidal groove, the roller is in working condition, smoothly pushing the suture into the puncture tube; when the roller moves to the slot, the suture feeding device is in an idle state, avoiding interference with other operations. This design not only improves the ease of operation of the suture guide but also ensures the stability and reliability of the suture delivery process.

[0018] Optionally, the handle is provided with a grip, and the end of the puncture tube that is not connected to the handle is provided with a curved tip.

[0019] By adopting the above technical solutions, the handle design improves comfort and stability during operation, making it easier for users to grip and control the piercing thread guide. The curved tip facilitates piercing and hooking operations.

[0020] Optionally, a puncture needle may further include an adjustment device installed between the handle and the puncture tube, the adjustment device being used to adjust the circumferential angle of the puncture tube relative to the central axis of the handle.

[0021] By adopting the above technical solution, an adjustment device has been added to the puncture and suture guide. This design allows the puncture and suture guide to be flexibly adjusted according to actual needs during use, improving the adaptability and ease of operation of the equipment, while also enhancing the accuracy of the surgery or procedure.

[0022] Optionally, the adjusting device includes a fixed cover, an adjusting member, and a mounting member. The adjusting member is fixedly installed at the end of the handle near the puncture tube. The mounting member is movably connected to the adjusting member. The fixed cover passes through the puncture tube and is installed on the handle. The fixed cover is used to limit the axial displacement of the adjusting member and the mounting member.

[0023] By adopting the above technical solution, the design of the fixed cover, adjusting component, and mounting component allows the mounting component to be movably connected to the adjusting component, thereby realizing the angle adjustment function. The fixed cover effectively restricts the axial displacement between the adjusting component and the mounting component, ensuring that the adjusted angle is stable and reliable, preventing loosening or displacement during use, and improving the operating accuracy and stability of the piercing wire guide.

[0024] Optionally, the adjusting member has a cylindrical structure, an annular groove is formed on the surface of the adjusting member, and multiple parallel limiting grooves are formed below the annular groove. The limiting grooves have the same width and depth as the annular groove and are connected. The bottom of the inner walls of the multiple limiting grooves are on the same plane.

[0025] By adopting the above technical solution, the adjusting component is designed as a cylindrical structure, which can form a stable connection with the handle and the puncture tube, while also facilitating manufacturing. The annular groove on the surface of the adjusting component and the multiple limiting grooves below it allow the protrusion of the mounting component to move within the annular groove and selectively engage with the limiting grooves at different positions, thereby achieving precise adjustment of the puncture tube tip angle. The limiting grooves and the annular groove have the same width and depth and are interconnected, ensuring smooth movement of the protrusion and preventing jamming. The design of the bottom of the inner walls of the multiple limiting grooves being on the same plane ensures stability at each position during adjustment, and, in conjunction with the fixing cap, improves the reliability and consistency of operation.

[0026] Optionally, the mounting component is cylindrical, and the inner wall of the mounting component is provided with a protrusion that matches the limiting groove and the annular groove. The protrusion can move along the annular groove to be placed in the limiting groove at different positions.

[0027] By adopting the above technical solution, the protrusions on the inner wall of the mounting component cooperate with the annular grooves and limiting grooves on the adjusting component to achieve precise angular positioning of the mounting component relative to the adjusting component. The protrusions move along the annular grooves and engage with the limiting grooves at different positions, making the tip angle of the piercing wire guide adjustable and stably fixed in the required position, thus improving the operational flexibility and applicability of the equipment.

[0028] Optionally, the side of the fixing cover facing away from the adjusting member is engraved with scale lines, which correspond to the limiting groove.

[0029] By adopting the above technical solution, the scale lines on the fixed cover can intuitively display the rotation angle of the installation component relative to the adjustment component, which makes it easier for users to accurately adjust the angle of the puncture tube tip and reduce operational errors.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. By installing the thread feeding device in the middle of the handle and selectively placing it in the receiving part, the working state of the thread feeding device can be flexibly adjusted, reducing jamming during the suture thread pushing process and improving the accuracy and efficiency of operation.

[0032] 2. The handle and the puncture tube adopt a through-hole structure and are connected to each other to ensure that the suture can be smoothly transferred from the handle to the puncture tube, thus enhancing the stability of the suture delivery process;

[0033] 3. The detachable connection between the puncture tube and the handle facilitates replacement and cleaning, improving the practicality and hygiene of the equipment;

[0034] 4. The puncture tube can be adjusted in angle to accommodate different injuries in different patients. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0036] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application;

[0037] Figure 3 This is a schematic diagram of the adjusting component structure;

[0038] Figure 4 This is a schematic diagram of the mounting component structure;

[0039] Figure 5 This is a schematic diagram of the scale lines.

[0040] Explanation of reference numerals in the attached drawings: 1. Handle; 11. Receiving part; 111. Trapezoidal groove; 112. Slot; 12. Handle; 2. Puncture tube; 21. Tip; 3. Thread feeding device; 31. Roller; 32. Fixing bracket; 4. Adjusting device; 41. Fixing cover; 411. Scale line; 42. Adjusting component; 421. Ring groove; 422. Limiting groove; 43. Mounting component; 431. Protrusion. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0042] Example 1

[0043] This application discloses a puncture needle.

[0044] refer to Figure 1 A puncture and thread feeding device includes a handle 1, a puncture tube 2, and a thread feeding device 3.

[0045] The handle 1 has a receiving part 11;

[0046] The puncture tube 2 is detachably connected to one end of the handle 1;

[0047] The suture feeding device 3 is installed in the middle of the handle 1. The suture feeding device 3 can be selectively placed in the receiving part 11. The suture feeding device 3 can push the suture into the puncture tube 2.

[0048] refer to Figure 1In use, the PDS suture is inserted through the hollow structure at the tail of the handle 1. The insertion of the suture is observed through the trapezoidal groove 111. When the suture is at the bottom of the trapezoidal groove 111, the suture feeder 3 can be placed inside the trapezoidal groove 111 to hold the suture in place. The puncture tube 2 is detachably connected to the handle 1 via a movable pin. The puncture tube 2 and the handle 1 are coaxially aligned. Specifically, when the fixing frame 32 drives the roller 31 into the slot 112, the operator can manually feed the suture into the puncture tube 2; when the fixing frame 32 drives the roller 31 into the trapezoidal groove 111, the operator can slide the roller 31 to feed the suture into the puncture tube 2. When the suture is inside the puncture tube 2, the operator holds the suture feeder with the handle 12 and performs the surgical procedure with the aid of auxiliary instruments.

[0049] The implementation principle of Embodiment 1 of this application is as follows: The operator can change the position of the roller 31 by controlling the fixing frame 32 to perform two different working operations. When the doctor's hands are wet, bloody, or oily, the handle 1 is opened from the slot 112 and rotated to the trapezoidal groove 111, and the suture is passed through the tip 21 of the puncture tube 2 through the pulley. When the doctor's hands are dry and there is no slippage, the suture is pressed with the thumb and passed through the tip 21 of the puncture tube 2. The open design of the trapezoidal groove 111 makes it easier to observe the condition of the suture, and the rotatable suture feeding device 3 makes it easier to clean.

[0050] Example 2

[0051] refer to Figures 2-5 Compared with Embodiment 1, the difference in this embodiment is that an adjustment device 4 is provided between the puncture tube 2 and the handle 1. The adjustment device 4 is used to adjust the circumferential angle of the tip 21 of the puncture tube 2 relative to the central axis of the handle 1. Specifically, the puncture tube 2 is fixedly connected to the mounting member 43, the handle 1 is connected to the adjustment member 42, and the puncture tube 2 is connected to the adjustment member 42 through the mounting member 43. The adjustment member 42 is a hollow cylinder, and the surface of the adjustment member 42 is provided with an annular groove 421 and a limiting groove 422 communicating with the annular groove 421. The limiting grooves 422 are spaced apart and the bottoms of the limiting grooves 422 are located on the same plane. The mounting member 43 is cylindrical, and the inner wall of the mounting member 43 is provided with protrusions 431. When the angle of the tip 21 needs to be adjusted, the mounting piece 43 moves along the annular groove 421 via the protrusion 431, observes the scale line 411 on the puncture tube 2 and the fixed cover 41, determines the required angle, and inserts the protrusion 431 of the mounting piece 43 into the limiting groove 422, and further fixes the fixed cover 41 to the handle 1 by the movable pin.

[0052] The implementation principle of the puncture and suture device in this application embodiment is as follows: When the operator uses it, the patient's injury condition is different and the location where the meniscus needs to be sutured is also different. There is no need to rotate the handle 1 or open another incision. The rotation of the puncture tube 2 can be achieved by adjusting the device 4.

[0053] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A piercing thread guide, characterized in that, include: The handle (1) has a receiving portion (11); A puncture tube (2) is detachably connected to one end of the handle (1); as well as The suture feeding device (3) is installed in the middle of the handle (1) and can be selectively placed in the receiving part (11). The suture feeding device (3) can push the suture into the puncture tube (2).

2. The piercing and thread-passing device according to claim 1, characterized in that: The receiving part (11) includes a trapezoidal groove (111) and a slot (112). The slot (112) is located at the extreme position of the wire feeding device (3) at the tail of the handle (1), and the trapezoidal groove (111) is located at the extreme position of the wire feeding device (3) at the front end of the handle (1).

3. The piercing and thread-passing device according to claim 1, characterized in that: The handle (1) and the puncture tube (2) are both hollow structures that are interconnected and the hollow structures are connected to each other.

4. The piercing and thread-passing device according to claim 2, characterized in that: The wire feeding device (3) includes a roller (31) and a fixing frame (32). The fixing frame (32) is disposed between the trapezoidal groove (111) and the slot (112). The roller (31) is rotatably mounted on the fixing frame (32). The rotation of the fixing frame (32) drives the roller (31) to enter the working state when it is located in the trapezoidal groove (111) or to enter the idle state when it is located in the slot (112).

5. The piercing and thread-passing device according to claim 1, characterized in that: The handle (1) is provided with a handle (12), and the end of the puncture tube (2) that is not connected to the handle (1) is provided with a curved tip (21).

6. The piercing and thread-passing device according to claim 1, characterized in that: A puncture needle also includes an adjustment device (4) installed between the handle (1) and the puncture tube (2), the adjustment device (4) being used to adjust the circumferential angle of the puncture tube (2) relative to the central axis of the handle (1).

7. A piercing and thread-passing device according to claim 6, characterized in that: The adjusting device (4) includes a fixed cover (41), an adjusting member (42), and a mounting member (43). The adjusting member (42) is fixedly installed on the end of the handle (1) near the puncture tube (2). The mounting member (43) is movably connected to the adjusting member (42). The fixed cover (41) passes through the puncture tube (2) and is installed on the handle (1). The fixed cover (41) is used to limit the axial displacement of the adjusting member (42) and the mounting member (43).

8. A piercing and thread-passing device according to claim 7, characterized in that: The adjusting member (42) has a cylindrical structure. An annular groove (421) is provided on the surface of the adjusting member (42). A plurality of parallel and spaced limiting grooves (422) are provided below the annular groove (421). The limiting grooves (422) and the annular groove (421) have the same groove width and depth and are connected. The bottom of the inner walls of the plurality of limiting grooves (422) are on the same plane.

9. A piercing and thread-passing device according to claim 8, characterized in that: The mounting component (43) is cylindrical, and the inner wall of the mounting component (43) is provided with a protrusion (431) that matches the limiting groove (422) and the annular groove (421). The protrusion (431) can move along the annular groove (421) to be placed in the limiting groove (422) at different positions.

10. A piercing and thread-passing device according to claim 8, characterized in that: The fixed cover (41) has a scale line (411) engraved on the side facing away from the adjusting member (42), and the scale line (411) corresponds to the limiting groove (422).

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