Straight line stitching instrument capable of preventing mistaken touch and facilitating butt stitching

Abstract

The utility model relates to the technical field of medical equipment, in particular to an anti-mistaken-touch easy-to-butt-seam linear stitching instrument which comprises a support assembly, a pushing assembly, a percussion assembly and a tool bit assembly, a fixing seat and a clamping seat are arranged in the tool bit assembly, the clamping seat can abut against the fixing seat, a stitching nail is installed in the clamping seat, and the fixing seat can abut against the suturing nail. The percussion assembly comprises a percussion handle and a percussion rod, the percussion handle is rotatably arranged on the support assembly, the percussion rod is slidably arranged in the support assembly, the end of the percussion rod can abut against the suturing nail, a percussion block is arranged at the end of the percussion handle, an adjusting head is arranged at the end of the percussion rod, and the percussion block abuts against the end of the adjusting head. The percussion block is in a crescent shape, the concave face of the percussion block right faces the adjusting head, a torsional spring is connected between the percussion block and the percussion handle in a matched mode, the percussion block is rotatably arranged on the percussion handle, and the adjusting head slides along the outer contour of the percussion block.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an anti-mistouch easy-to-align linear suture device. Background Art

[0002] A linear stapler is a medical device used to connect the edges of a wound with sutures during surgery to promote wound healing. As one of the main medical devices, the linear stapler is widely used in many fields such as human digestive tract surgery and lung surgery. It is particularly suitable for places where the interface is short or the line of sight is not clear.

[0003] When doctors use linear staplers for surgery, they need to close the jaws to clamp the tissue, confirm that the position is appropriate, and then fire the staples, eventually forming a good "B" shape on the tissue. However, the closing process is not completed in one step. Once the position of the clamped tissue is not appropriate, the tissue needs to be loosened, and the correct position needs to be found and closed again until the position is correct before the staples can be fired. In actual operation, doctors can hardly confirm whether the linear stapler has completed the three states of semi-closure, closure, and firing one by one, which makes it easy for the firing to cause problems such as mis-triggering, multiple firings, and incomplete firing, which in turn causes irreparable harm to the patient.

[0004] To solve the above technical problems, Chinese patent CN201806743U discloses a linear suture device, including a jaw assembly, a jaw drive device, a staple firing device and a housing, the jaw assembly includes a nail support and a nail magazine, the jaw drive device drives the nail magazine to move away from or toward the nail support, so that the jaw assembly can be in an open state, a semi-closed state and a closed state, and the staple firing device fires the staples when the jaw assembly is in the closed state; the linear suture device also includes a marking block and a marking window arranged on the housing, the marking block has four different colors of marks, the marking block is linked with the jaw drive device, when the jaw assembly is in a closed state, the marking block can continue to move through the firing operation of the staple firing device, so that different colors of marks can be seen through the marking window in the open state, semi-closed state, closed state and firing state after firing the staples. The above patent judges the operating state by observing the color of the mark and accurately performs the next operation. However, the operating parts are still easy to touch by mistake, and the suture position cannot be accurately located.

[0005] Therefore, a linear suture device that is easy to align and prevents accidental triggering is provided, so that the operator cannot fire during the closing process of the jaw assembly, and there is no need to worry about problems such as accidental triggering. Improving the stability and safety of the device is what technical personnel in this field need to do. Utility Model Content

[0006] The utility model aims to provide an anti-mistouch and easy-to-align linear suture device, so as to solve the technical problems in the prior art that the jaw assembly of the linear suture device cannot accurately perform the firing operation during the closing process, resulting in easy mistouch, multiple firing, incomplete firing, etc. during firing.

[0007] The technical solution adopted by the utility model to solve its technical problems is: an anti-mistouch easy-to-align linear suture device, comprising a bracket assembly, a propulsion assembly, a firing assembly and a cutter head assembly, wherein a fixing seat and a clamping seat are arranged in the cutter head assembly, the clamping seat can abut against the fixing seat, a suture nail is installed in the clamping seat, the firing assembly comprises a firing handle and a firing rod, the firing handle is rotatably arranged on the bracket assembly, the firing rod is slidably arranged in the bracket assembly, the end of the firing rod can abut against the suture nail, a firing block is arranged at the end of the firing handle, an adjusting head is arranged at the end of the firing rod, and the firing block abuts against the end of the adjusting head; the firing block is crescent-shaped, the concave surface of the firing block is opposite to the adjusting head, a torsion spring is cooperatively connected between the firing block and the firing handle, the firing block is rotatably arranged on the firing handle, and the adjusting head slides along the outer contour of the firing block.

[0008] Furthermore, the propulsion assembly includes a propulsion handle and a linkage rod, the propulsion handle is rotatably disposed on the bracket assembly, and the linkage rod is slidably disposed on the bracket assembly.

[0009] Furthermore, a propulsion head is provided at the end of the propulsion handle, a linkage block is rotatably provided at the end of the linkage rod, and the linkage block is rotatably mounted on the propulsion head.

[0010] Furthermore, the linkage block is detachably connected to the propulsion head and the linkage rod, and the propulsion head, the linkage block and the linkage rod move synchronously.

[0011] Furthermore, the firing rod can be slidably connected to the linkage rod, and the firing rod can move synchronously with the linkage rod.

[0012] Furthermore, the clamping seat is clamped and connected to the end of the linkage rod, and the linkage rod and the clamping seat move synchronously.

[0013] Furthermore, the fixing seat is fixedly connected to the bracket assembly, the clamping seat is slidably arranged on the bracket assembly, and the propulsion assembly and the firing assembly are installed in the bracket assembly.

[0014] Furthermore, the firing block abuts against the lower plane of the adjusting head.

[0015] Furthermore, the end of the adjusting head can slide into the concave surface of the firing block.

[0016] The beneficial effects of the utility model are as follows: the utility model sets a firing block on the firing handle, and the crescent-shaped firing block is in a non-use state, and the firing block abuts against the lower plane of the adjusting head, and the torsion spring on the firing block is compressed and accumulates elastic potential energy. At this time, when the firing handle is turned, the firing handle is subjected to a reaction force due to the compression of the torsion spring and cannot be turned; when the adjusting head moves a certain distance, the end of the adjusting head slides into the concave surface of the firing block, and the torsion spring on the firing block releases elastic potential energy, thereby pushing the adjusting head to move forward quickly to complete the firing operation. The utility model can pause at any time during the movement of the adjusting head, which is convenient for the operator to sew and adjust the wound, effectively improving the accuracy and stability of use, and ensuring the suturing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of the utility model of the anti-mistouch easy-to-align linear suture device.

[0018] Figure 2 yes Figure 1 Schematic diagram of the explosion.

[0019] Figure 3 It is a three-dimensional diagram of the utility model's anti-mistouch easy-to-align linear suture device (the bracket assembly 10 is omitted).

[0020] Figure 4 yes Figure 3 Exploded front view.

[0021] Figure 5 It is a cross-sectional view of the utility model of the anti-mistouch easy-to-align linear suture device.

[0022] The components in the accompanying drawings are marked as follows: 10, bracket assembly; 20, propulsion assembly; 21, propulsion handle; 22, propulsion head; 23, linkage block; 24, linkage rod; 30, firing assembly; 31, firing handle; 32, firing block; 33, firing rod; 34, adjustment head; 40, blade assembly. DETAILED DESCRIPTION

[0023] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0024] See also Figure 1The utility model provides an anti-mistouch easy-to-align linear suture device, comprising a bracket assembly 10, a propulsion assembly 20, a firing assembly 30 and a cutter head assembly 40, wherein a fixing seat and a clamping seat (not shown) are arranged in the cutter head assembly 40, wherein the clamping seat can abut against the fixing seat, and a suture nail is installed in the clamping seat; the fixing seat is fixedly connected to the bracket assembly 10, and the clamping seat can be slidably arranged on the bracket assembly 10, and the propulsion assembly 20 and the firing assembly 30 are installed in the bracket assembly 10, and at the same time, the propulsion assembly 20 pushes the clamping seat to move on the bracket assembly 10 to clamp the wound, and the firing assembly 30 is used to fire the suture nail located in the clamping seat, and the suture nail penetrates the wound and bends to suture the wound.

[0025] It can be understood that the specific connection structure between the support assembly 10, the propulsion assembly 20, the firing assembly 30 and the blade assembly 40 can be found in a linear suture device disclosed in CN201806743U, and the specific working process of the support assembly 10, the propulsion assembly 20, the firing assembly 30 and the blade assembly 40 will not be described in detail here.

[0026] See also Figure 2 , Figure 3 The propulsion assembly 20 includes a propulsion handle 21 and a linkage rod 24. The propulsion handle 21 is rotatably arranged on the bracket assembly 10, and the linkage rod 24 is slidably arranged on the bracket assembly 10. A propulsion head 22 is provided at the end of the propulsion handle 21, and a linkage block 23 is rotatably provided at the end of the linkage rod 24. The linkage block 23 is rotatably installed on the propulsion head 22; in this embodiment, the linkage block 23 is detachably connected to the propulsion head 22 and the linkage rod 24 by a latch, and the propulsion head 22, the linkage block 23 and the linkage rod 24 move synchronously, thereby realizing power transmission between the propulsion head 22 and the linkage rod 24.

[0027] When in use, the propulsion handle 21 is rotated, and the propulsion head 22 rotates accordingly, thereby driving the linkage block 23 to rotate. The linkage block 23 will move downward while rotating, thereby pushing the linkage rod 24 to slide; since the propulsion handle 21 is rotatable and the linkage rod 24 is slidable, the rotatable linkage block 23 is respectively rotatably connected to the propulsion head 22 and the linkage rod 24, so as to realize the transmission conversion between the propulsion head 22 and the linkage rod 24 and ensure the stability of use.

[0028] In this embodiment, the clamping seat is embedded in the end of the linkage rod 24, and the linkage rod 24 slides to drive the clamping seat to slide, thereby clamping the wound.

[0029] For further information, see Figure 4 , Figure 5The firing assembly 30 includes a firing handle 31 and a firing rod 33. The firing handle 31 is rotatably disposed on the bracket assembly 10, and the firing rod 33 is slidably disposed in the bracket assembly 10. A firing block 32 is disposed at the end of the firing handle 31, and an adjusting head 34 is disposed at the end of the firing rod 33. The firing block 32 abuts against the end of the adjusting head 34. In this embodiment, the firing rod 33 is slidably connected to the linkage rod 24 by a latch. When in use, the firing rod 33 can move synchronously with the linkage rod 24, and can also slide in the linkage rod 24.

[0030] Specifically, the firing block 32 is crescent-shaped, and the concave surface of the firing block 32 faces the adjusting head 34. A torsion spring is connected between the firing block 32 and the firing handle 31. The firing block 32 is rotatably arranged on the firing handle 31 by means of a torsion spring (not shown in the figure), and the adjusting head 34 slides along the outer contour of the firing block 32. In this way, when not in use, the firing block 32 abuts against the lower plane of the adjusting head 34, and the torsion spring on the firing block 32 is compressed and accumulates elastic potential energy. At this time, when the firing handle 31 is rotated, the firing handle 31 is subjected to a reaction force due to the compression of the torsion spring and cannot be rotated; when the adjusting head 34 moves a certain distance, the end of the adjusting head 34 slides into the concave surface of the firing block 32, and the torsion spring on the firing block 32 releases the elastic potential energy, thereby pushing the adjusting head 34 to move forward quickly to complete the firing operation.

[0031] It can be understood that the torsion spring is used to realize the reciprocating rotation of the firing block 32 on the firing handle 31. The firing block 32 is pressed by the adjusting head 34, so that the torsion spring is compressed and accumulates elastic potential energy. Since the adjusting head 34 moves horizontally and the firing block 32 is located below the adjusting head 34 and rotates clockwise, the firing block 32 is stably restricted below the adjusting head 34; when the adjusting head 34 moves into the concave surface of the firing block 32, the force applied to the torsion spring is removed, and the adjusting head 34 is located in front of the firing block 32. The torsion spring releases the elastic potential energy and pushes the adjusting head 34 to move forward quickly to complete the firing.

[0032] After suturing is completed, the adjusting head 34 is adjusted to move backward, and the adjusting head 34 moves along the concave surface of the firing block 32 and presses the firing block 32 downward, and the torsion spring is compressed again and accumulates elastic potential energy, and the adjusting head 34 moves to the top of the firing block 32 to achieve the re-limitation of the firing block 32. At the same time, the torsion spring has a certain stroke limit when rotating. When the firing block 32 is restricted under the adjusting head 34, the torsion spring is compressed to the limit, thereby ensuring that repeated firing or accidental firing is impossible, thereby improving the stability and safety of the use of the utility model.

[0033] In this embodiment, the end of the firing rod 33 can abut against the suture nail, and after the adjusting head 34 is pushed by the firing block 32, the firing rod 33 quickly moves and pushes against the suture nail, so that the suture nail penetrates the wound and bends, thereby suturing the wound. The utility model can pause at any time during the movement of the adjusting head 34, which is convenient for the operator to sew and adjust the wound, effectively improving the accuracy and stability of use, and ensuring the suturing effect.

[0034] The specific operation method of the utility model is as follows: Step 1: put the blade assembly 40 in a semi-closed state, the gap between the fixing seat and the clamping seat is relatively large, and the tissue is lightly held at this time, but the tissue will not be squeezed or damaged. If the position of the tissue entering the jaws is not appropriate, the blade assembly 40 can be released by rotating the push handle 21 in the opposite direction or pressing the release button (not shown) at the back of the instrument, and the tissue position can be readjusted, and then the semi-closed action can be performed again.

[0035] Step 2: If a suitable position is found through the first step, continue to rotate the push handle 21. After the jaw assembly is in a closed state, when the tissue is confirmed to be correct again, continue to rotate the push handle 21 to release the firing block 32 on the firing handle 31 to fire the staples.

[0036] The utility model is provided with a firing block 32 on the firing handle 31. When the firing block 32 is in a crescent shape and is not in use, the firing block 32 abuts against the lower plane of the adjusting head 34. The torsion spring on the firing block 32 is compressed and accumulates elastic potential energy. At this time, when the firing handle 31 is rotated, the firing handle 31 is subjected to a reaction force due to the compression of the torsion spring and cannot be rotated. When the adjusting head 34 moves a certain distance, the end of the adjusting head 34 slides into the concave surface of the firing block 32, and the torsion spring on the firing block 32 releases elastic potential energy, thereby pushing the adjusting head 34 to move forward quickly to complete the firing operation. The utility model can pause at any time during the movement of the adjusting head 34, which is convenient for the operator to sew and adjust the wound, effectively improving the accuracy and stability of use, and ensuring the suturing effect.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A linear suture device that prevents accidental touch and is easy to align, comprising a support assembly (10), a propulsion assembly (20), a firing assembly (30) and a cutter head assembly (40), wherein a fixing seat and a clamping seat are provided in the cutter head assembly (40), wherein the clamping seat can abut against the fixing seat, and a suture staple is installed in the clamping seat, characterized in that: The firing assembly (30) comprises a firing handle (31) and a firing rod (33); the firing handle (31) is rotatably arranged on the bracket assembly (10); the firing rod (33) is slidably arranged in the bracket assembly (10); the end of the firing rod (33) can abut against the suture nail; a firing block (32) is provided at the end of the firing handle (31); an adjusting head (34) is provided at the end of the firing rod (33); the firing block (32) abuts against the end of the adjusting head (34); the firing block (32) is crescent-shaped; the concave surface of the firing block (32) faces the adjusting head (34); a torsion spring is cooperatively connected between the firing block (32) and the firing handle (31); the firing block (32) is rotatably arranged on the firing handle (31); and the adjusting head (34) slides along the outer contour of the firing block (32).

2. The anti-mistouch easy-to-align linear suture device according to claim 1, characterized in that: The propulsion assembly (20) comprises a propulsion handle (21) and a linkage rod (24); the propulsion handle (21) is rotatably disposed on the support assembly (10), and the linkage rod (24) is slidably disposed on the support assembly (10).

3. The anti-mistouch easy-to-align linear suture device according to claim 2, characterized in that: A propulsion head (22) is provided at the end of the propulsion handle (21), a linkage block (23) is rotatably provided at the end of the linkage rod (24), and the linkage block (23) is rotatably mounted on the propulsion head (22).

4. The anti-mistouch easy-to-align linear suture device according to claim 3, characterized in that: The linkage block (23) is detachably connected to the propulsion head (22) and the linkage rod (24); the propulsion head (22), the linkage block (23) and the linkage rod (24) move synchronously.

5. The anti-mistouch easy-to-align linear suture device according to claim 4, characterized in that: The firing rod (33) is slidably connected to the linkage rod (24), and the firing rod (33) can move synchronously with the linkage rod (24).

6. The anti-mistouch easy-to-align linear suture device according to claim 5, characterized in that: The clamping seat is clamped and connected to the end of the linkage rod (24), and the linkage rod (24) moves synchronously with the clamping seat.

7. The anti-mistouch easy-to-align linear suture device according to claim 1, characterized in that: The fixing seat is fixedly connected to the bracket assembly (10), the clamping seat is slidably arranged on the bracket assembly (10), and the propulsion assembly (20) and the firing assembly (30) are installed in the bracket assembly (10).

8. The anti-mistouch easy-to-align linear suture device according to claim 1, characterized in that: The firing block (32) abuts against the lower plane of the adjusting head (34).

9. The anti-mistouch easy-to-align linear suture device according to claim 1, characterized in that: The end of the adjustment head (34) can slide into the concave surface of the firing block (32).

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