Arthroscope line passing device

Abstract

The utility model discloses an arthroscope thread passing device which comprises a grip, one end of the grip is connected with a thread passing pipe, one side of the grip is provided with a side opening door, the inner wall of one side of the grip is rotationally connected with a pushing wheel, the top end of the pushing wheel protrudes out of the outer wall of the grip, the inner wall of the grip is rotationally connected with two conveying wheels, and the conveying wheels are arranged on the side opening door. A gap exists between the outer wall of one side of the conveying wheel and the inner wall of the grip, a guide groove is formed in the end, close to the wire passing pipe, of the inner wall of the grip, one ends of rotating shafts of the pushing wheel and the conveying wheel are connected with synchronous belt wheels, and the two synchronous belt wheels connected with the rotating shafts of the pushing wheel and the conveying wheel are in transmission fit through a cog belt. Through the arrangement of the thread passing pipe, the pushing wheel, the conveying wheel, the synchronous belt wheel and the cog belt, during suturing, the pushing wheel is pushed to rotate, so that a surgical thread which is cut off after being sutured last time can be output from the thread passing pipe, and the surgical thread does not need to be fixed and dragged during suturing every time.

Description

Technical Field

[0001] This utility model relates to the field of arthroscopy technology, and in particular to an arthroscopy suture device. Background Technology

[0002] An arthroscopy is a rod-shaped optical instrument, about 5 mm in diameter, used to observe the internal structures of a joint and is an endoscope used to diagnose and treat joint diseases. An arthroscopy tube has a lens at the end; when this tube is inserted into the joint, the internal structures are displayed on a monitor. During arthroscopic surgery, sutures are used to close the wound, and a suture threading device is used to pass the sutures through the wound.

[0003] A search revealed Chinese patent publication number CN214157417U, which discloses an arthroscopic suture device for orthopedics, comprising a connecting ring, a connecting rod fixedly connected to one side of the connecting ring, a threaded connection fixedly connected to one side of the connecting rod, a first connecting post movably connected to one side of the threaded connection, a limiting post fixedly connected to one side of the first connecting post, a second connecting post fixedly connected to one end of the limiting post, a connecting hole movably connected to one side of the second connecting post, and a fixing post fixedly connected to one side of the connecting hole.

[0004] This patent uses a servo motor to drive the connecting wheel and connecting belt to control the rotation of the roller in the connecting groove, thereby controlling the back-and-forth movement of the second connecting column and connecting ring. This makes it convenient for medical staff to move the surgical suture. However, the surgical suture and connecting ring are small in size, making it difficult to fix them. Moreover, each time the surgical suture is cut, it needs to be re-fixed for the next suture, which consumes time. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an arthroscopic suture device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An arthroscopic suture device includes a handle, one end of which is connected to a suture tube. A side-opening door is provided on one side of the handle. A push wheel is rotatably connected to the inner wall of one side of the handle, with the top of the push wheel protruding from the outer wall of the handle. Two conveying wheels are rotatably connected to the inner wall of the handle. There is a gap between the outer wall of one side of the conveying wheel and the inner wall of the handle. A guide groove is provided on the inner wall of the handle near the end of the suture tube. A synchronous pulley is connected to one end of the shaft of both the push wheel and the conveying wheel. The two synchronous pulleys connected to the shaft of the push wheel and the conveying wheel are engaged by toothed belt drive.

[0008] As a further embodiment of this utility model: a fixed roller is provided on the inner wall of the grip at the end away from the suture tube, a surgical suture wheel is sleeved on the outside of the fixed roller, and surgical suture is wound around the outside of the surgical suture wheel.

[0009] As a further improvement of this utility model: strong magnets are provided on the inner wall of one end of the side-opening door and the inner wall of the handle, and the two strong magnets are magnetically attracted to each other.

[0010] As a further embodiment of this utility model: the fixed roller includes a fixed shaft and a fixed block, the fixed block is fixed to the inner wall of the handle, the inner wall of the fixed block is rotatably fitted with a rotating block, and the fixed shaft is fixedly connected to one end of the rotating block.

[0011] As a further embodiment of this utility model: the side wall of the rotating block is provided with a limiting ball, the inner wall of the fixed block is provided with an arc-shaped groove that cooperates with the limiting ball, and a spring is provided between the rotating block and the limiting ball. One end of the spring is fixedly connected to the rotating block, and the other end of the spring is in contact with the outer wall of the limiting ball.

[0012] As a further embodiment of this utility model: multiple locking blocks are slidably connected to the side wall of the fixed shaft, and the locking block has an inclined surface that is inclined towards the axis of the fixed shaft at one end near the side door. A second spring is fixedly connected to one side of the locking block, and the other end of the second spring is connected to the fixed shaft.

[0013] As a further improvement of this utility model: a rubber friction layer is provided on the outer wall of the end of the card block away from the fixed axis, and the card block is in contact with the inner wall of the surgical thread wheel.

[0014] As a further improvement of this utility model: the inner wall of the handle and the side wall of the side opening are provided with a limiting rod, and one end of the limiting rod is rotatably connected to a ball, which abuts against the side wall of the surgical thread wheel for limiting.

[0015] Compared with the prior art, the present invention provides an arthroscopic suture device, which has the following advantages:

[0016] 1. This utility model, by setting up a suture tube, a push wheel, a conveying wheel, a synchronous pulley and a toothed belt, allows the surgical suture cut after the previous suture to be output from the suture tube when the push wheel is rotated during suturing, without the need to fix and pull the surgical suture for each suture.

[0017] 2. This utility model, by setting a fixed block, a rotating block, a limiting ball and a spring, restricts the rotation of the fixed shaft when the surgical suture stops being delivered, so that the surgical suture wheel cannot rotate arbitrarily, thus avoiding the surgical suture from scattering itself when the surgical suture is not being delivered, which would affect the delivery of the surgical suture.

[0018] 3. In this utility model, by setting a limit rod, a locking block and a second spring, when installing the surgical thread wheel, one end of the surgical thread wheel presses against the inclined surface of one end of the locking block, causing the locking block to move towards the axis of the fixed shaft. When one end of the surgical thread wheel contacts the ball on the inner wall of the handle, the surgical thread wheel is fixed. The second spring pushes the locking block to fit tightly against the inner wall of the surgical thread wheel, and the surgical thread wheel is fixed by the friction of the rubber friction layer, which facilitates the installation of the surgical thread wheel.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an arthroscopic suture device proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of an arthroscopic suture device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the transmission structure of the push wheel and the conveying wheel of the arthroscopic suture device proposed in this utility model;

[0023] Figure 4 This is a cross-sectional view of a fixing roller for an arthroscopic thread-passing device proposed in this utility model.

[0024] Figure 5 This is a partial structural diagram of the fixing axis of the arthroscopic suture device proposed in this utility model.

[0025] In the diagram: 1. Handle; 2. Cable guide tube; 3. Side-opening door; 4. Push wheel; 5. Conveyor wheel; 6. Surgical suture wheel; 7. Fixed roller; 8. Guide groove; 9. Synchronous pulley; 10. Strong magnet; 11. Toothed belt; 12. Limiting rod; 13. Fixed shaft; 14. Fixed block; 15. Rotating block; 16. Limiting ball; 17. Spring 1; 18. Locking block; 19. Spring 2. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1

[0029] An arthroscopic suture device, such as Figures 1 to 3 As shown, the device includes a handle 1, one end of which is connected to a cable conduit 2. A side-opening door 3 is located on one side of the handle 1. A push wheel 4 is rotatably connected to the inner wall of one side of the handle 1, with the top of the push wheel 4 protruding from the outer wall of the handle 1. Two conveyor wheels 5 are rotatably connected to the inner wall of the handle 1, with a gap between the outer wall of one side of the conveyor wheel 5 and the inner wall of the handle 1. A guide groove 8 is located on the inner wall of the handle 1 near the cable conduit 2. A synchronous belt pulley 9 is connected to one end of the shaft of both the push wheel 4 and the conveyor wheel 5. Two synchronous pulleys 9 connected to the shafts of the push wheel 4 and the conveyor wheel 5 are driven by toothed belts 11. A fixed roller 7 is provided on the inner wall of the handle 1 away from the suture tube 2. A surgical suture wheel 6 is sleeved on the outside of the fixed roller 7. Surgical suture is wound on the outside of the surgical suture wheel 6. One end of the surgical suture passes through the gap between the conveyor wheel 5 and the inner wall of the handle 1 and passes through the suture tube 2 along the guide groove 8. A strong magnet 10 is provided on the inner wall of one end of the side door 3 and the inner wall of the handle 1. The two strong magnets 10 are magnetically attracted to each other.

[0030] In use, open the side door 3, install the surgical suture wheel 6 on the outer wall of the fixed roller 7, and pull one end of the surgical suture out from the outer wall of the surgical suture wheel 6, passing through the two conveying wheels 5 and the guide groove 8 in sequence, and exiting from the suture tube 2. Close the magnet 10 of the side door 3 to deactivate the magnet. During suturing, push the push wheel 4 to rotate, which drives the two conveying wheels 5 to rotate through the synchronous pulley 9 and the toothed belt 11, continuously conveying the surgical suture towards the suture tube 2 for suturing. After one suturing is completed, cut the surgical suture. During the next suturing, push the push wheel 4 to rotate, and the cut surgical suture can be output from the suture tube 2. It is not necessary to fix and pull the surgical suture for each suturing.

[0031] By setting up a suture tube 2, a push wheel 4, a conveyor wheel 5, a synchronous pulley 9, and a toothed belt 11, the push wheel 4 is rotated during suturing, so that the surgical suture cut after the previous suturing is completed can be output from the suture tube 2, eliminating the need to fix and pull the surgical suture with each suturing.

[0032] Example 2

[0033] An arthroscopic suture device, this embodiment is based on embodiment 1, with the following improvements, such as... Figures 4 to 5 As shown, the fixed roller 7 includes a fixed shaft 13 and a fixed block 14. The fixed block 14 is fixed to the inner wall of the handle 1. A rotating block 15 is rotatably fitted onto the inner wall of the fixed block 14. The fixed shaft 13 is fixedly connected to one end of the rotating block 15. A limiting ball 16 is provided on the side wall of the rotating block 15. An arc-shaped groove that limits and fits the limiting ball 16 is provided on the inner wall of the fixed block 14. A spring 17 is provided between the rotating block 15 and the limiting ball 16. One end of the spring 17 is fixedly connected to the rotating block 15, and the other end of the spring 17 is in contact with the outer wall of the limiting ball 16. Multiple locking blocks 18 are slidably connected to the side wall of the fixed shaft 13. The locking block 18 has an inclined surface that is inclined towards the axis of the fixed shaft 13 at the end near the side door 3. A spring 2 19 is fixedly connected to one side of the locking block 18. The other end of the spring 2 19 is connected to the fixed shaft 13. A rubber friction layer is provided on the outer wall of the end of the locking block 18 away from the axis of the fixed shaft 13. The locking block 18 is in contact with the inner wall of the surgical thread wheel 6. A limit rod 12 is provided opposite to the inner wall of the handle 1 and the side wall of the side door 3. A ball is rotatably connected to one end of the limit rod 12. The ball abuts against the side wall of the surgical thread wheel 6 for limitation.

[0034] When the surgical suture is conveyed by the friction of the conveyor wheel 5, the surgical suture drives the surgical suture wheel 6 to rotate. Due to the friction between the locking block 18 and the inner wall of the surgical suture wheel 6, the fixed shaft 13 will rotate with the surgical suture wheel 6, causing the rotating block 15 to rotate relative to the fixed block 14. The limiting ball 16 is squeezed towards the rotating block 15 by the arc groove, and the spring 17 is compressed and deformed. When the surgical suture stops conveying, the spring 17 pushes the limiting ball 16 into the arc groove, restricting the rotation of the fixed shaft 13. Due to the friction between the locking block 18 and the inner wall of the surgical suture wheel 6, the surgical suture wheel 6 does not... It can rotate freely, preventing the surgical thread wheel 6 from rotating and causing the surgical thread to become tangled when no surgical thread is being delivered, thus affecting the delivery of the surgical thread; when installing the surgical thread wheel 6, one end of the surgical thread wheel 6 presses against the inclined surface of one end of the locking block 18, causing the locking block 18 to move towards the axis of the fixed shaft 13. The second spring 19 is compressed and deformed. When one end of the surgical thread wheel 6 contacts the ball on the inner wall of the handle 1, the surgical thread wheel 6 is fixed. The second spring 19 pushes the locking block 18 to fit tightly against the inner wall of the surgical thread wheel 6, and the surgical thread wheel 6 is fixed by the friction of the rubber friction layer.

[0035] By setting a fixed block 14, a rotating block 15, a limiting ball 16, and a spring 17, the rotation of the fixed shaft 13 is restricted when the surgical suture stops being delivered, so that the surgical suture wheel 6 cannot rotate arbitrarily. This prevents the surgical suture wheel 6 from rotating when the surgical suture is not being delivered, which would cause the surgical suture to become tangled and affect the delivery of the surgical suture.

[0036] By setting a limiting rod 12, a locking block 18, and a second spring 19, when installing the surgical thread wheel 6, one end of the surgical thread wheel 6 presses against the inclined surface of one end of the locking block 18, causing the locking block 18 to move towards the axis of the fixed shaft 13. When one end of the surgical thread wheel 6 contacts the ball on the inner wall of the handle 1, the surgical thread wheel 6 is fixed. The second spring 19 pushes the locking block 18 to fit tightly against the inner wall of the surgical thread wheel 6, and the surgical thread wheel 6 is fixed by the friction of the rubber friction layer, which facilitates the installation of the surgical thread wheel 6.

[0037] Working principle: When in use, open the side door 3. One end of the surgical suture wheel 6 presses against the inclined surface of the locking block 18, causing the locking block 18 to move towards the axis of the fixed shaft 13. The spring 19 is compressed and deformed. When one end of the surgical suture wheel 6 contacts the ball on the inner wall of the handle 1, the surgical suture wheel 6 is fixed. The spring 19 pushes the locking block 18 to fit tightly against the inner wall of the surgical suture wheel 6. The surgical suture wheel 6 is fixed by the friction of the rubber friction layer. One end of the surgical suture is pulled out from the outer wall of the surgical suture wheel 6, passes through the two conveying wheels 5 and the guide groove 8 in sequence, and exits from the suture tube 2. When the side door 3 is closed, the magnet 10 of the strong magnet pushes the push wheel 4 to rotate during suturing. Through the synchronous belt pulley 9 and the toothed belt 11, the two conveying wheels 5 are rotated, continuously conveying the surgical suture towards the suture tube 2 for suturing. The surgical suture will drive the surgical suture wheel 6. As the suture wheel 6 rotates, the fixed shaft 13 rotates with it due to the friction between the locking block 18 and the inner wall of the suture wheel 6. This causes the rotating block 15 to rotate relative to the fixed block 14. The limiting ball 16 is squeezed by the arc groove and moves towards the rotating block 15. The spring 17 is compressed and deformed. When the suture stops being delivered, the spring 17 pushes the limiting ball 16 into the arc groove, restricting the rotation of the fixed shaft 13. Due to the friction between the locking block 18 and the inner wall of the suture wheel 6, the suture wheel 6 cannot rotate arbitrarily. This prevents the suture wheel 6 from rotating when no suture is being delivered, causing the suture to become tangled and affecting the delivery of the suture. Once a suture is completed, the suture is cut. During the next suture, the push wheel 4 is rotated to output the cut suture from the suture tube 2. It is not necessary to fix and pull the suture during each suture.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An arthroscopic suture device, comprising a handle (1), characterized in that, One end of the handle (1) is connected to a cable conduit (2). A side door (3) is provided on one side of the handle (1). A push wheel (4) is rotatably connected to the inner wall of one side of the handle (1). The top of the push wheel (4) protrudes from the outer wall of the handle (1). Two conveyor wheels (5) are rotatably connected to the inner wall of the handle (1). There is a gap between the outer wall of one side of the conveyor wheel (5) and the inner wall of the handle (1). A guide groove (8) is provided on the inner wall of the handle (1) near the cable conduit (2). One end of the shaft of the push wheel (4) and the conveyor wheel (5) is connected to a synchronous pulley (9). The two synchronous pulleys (9) connected to the shaft of the push wheel (4) and the conveyor wheel (5) are driven by a toothed belt (11).

2. The arthroscopic suture device according to claim 1, characterized in that, A fixed roller (7) is provided on the inner wall of the handle (1) away from the end of the thread tube (2). A surgical thread wheel (6) is sleeved on the outside of the fixed roller (7), and surgical thread is wound on the outside of the surgical thread wheel (6).

3. The arthroscopic suture device according to claim 1, characterized in that, Strong magnets (10) are provided on the inner wall of one end of the side-opening door (3) and the inner wall of the handle (1), and the two strong magnets (10) are magnetically attracted to each other.

4. The arthroscopic suture device according to claim 2, characterized in that, The fixed roller (7) includes a fixed shaft (13) and a fixed block (14). The fixed block (14) is fixed to the inner wall of the handle (1). The inner wall of the fixed block (14) is rotatably fitted with a rotating block (15). The fixed shaft (13) is fixedly connected to one end of the rotating block (15).

5. The arthroscopic suture device according to claim 4, characterized in that, The rotating block (15) has a limiting ball (16) on its side wall, and the fixed block (14) has an arc-shaped groove on its inner wall that is matched with the limiting ball (16). A spring (17) is provided between the rotating block (15) and the limiting ball (16). One end of the spring (17) is fixedly connected to the rotating block (15), and the other end of the spring (17) is attached to the outer wall of the limiting ball (16).

6. The arthroscopic suture device according to claim 5, characterized in that, The fixed shaft (13) has multiple locking blocks (18) slidably connected to its side wall. The locking block (18) has an inclined surface that is inclined towards the axis of the fixed shaft (13) at one end near the side door (3). A second spring (19) is fixedly connected to one side of the locking block (18), and the other end of the second spring (19) is connected to the fixed shaft (13).

7. The arthroscopic suture device according to claim 6, characterized in that, The outer wall of the end of the card block (18) away from the axis of the fixed shaft (13) is provided with a rubber friction layer, and the card block (18) is in contact with the inner wall of the surgical thread wheel (6).

8. The arthroscopic suture device according to claim 1, characterized in that, The inner wall of the grip (1) and the side wall of the side door (3) are provided with a limiting rod (12) opposite to each other. One end of the limiting rod (12) is rotatably connected to a ball, and the ball abuts against the side wall of the surgical thread wheel (6) for limiting.

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