Bone flap fixing device used after craniotomy

Abstract

The utility model belongs to the technical field of fixing devices, and discloses a bone flap fixing device used after craniotomy, which comprises a grip, the top of the grip is fixedly connected with a gun body, one side of the gun body is rotatably connected with a working swivel, the bottom of the grip is rotatably connected with a rotating handle, one side of the rotating handle is fixedly connected with a limiting hook, and the other side of the rotating handle is fixedly connected with a connecting rod. A clamping and locking device is slidably connected to the bottom of the grip, a moving groove is formed in the bottom of the grip, and a reset device is arranged on the left side of the grip; during surgery, when the device needs to be used for operation, a push rod is pressed, so that a limiting block is blocked by a triangular prism and cannot rebound, the situation that articles in the device are popped out and need to be treated due to the fact that a handle is mistakenly touched and rotated during taking and placing, and the working efficiency is low can be prevented, and therefore the working efficiency can be improved; and the position of the limiting block is reset through the knob, so that the device is locked, the knob can be operated and locked more stably and accurately, and sliding, damage and the like are not prone to occurring.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixing devices, and particularly relates to a bone flap fixing device for after craniotomy. Background Art

[0002] The main functions of the applicator are to tighten and suture the suture thread during minimally invasive surgery and to fix the repair material to the soft tissue during the operation, and it is an indispensable tool in craniotomy.

[0003] However, there is a possibility that the finger accidentally touches the switch of the existing applicator, which may affect the work and lead to the problem of low work efficiency. Therefore, an anti-touch device is needed to limit the device. Summary of the Utility Model

[0004] Aiming at the problem that the user accidentally touches the switch in the prior art, resulting in low work efficiency, the utility model proposes the following technical solutions:

[0005] A bone flap fixing device for after craniotomy includes a grip, a gun body is fixedly connected to the top of the grip, a working head is rotatably connected to one side of the gun body, a rotating handle is rotatably connected to the bottom of the grip, a limiting hook is fixedly connected to one side of the rotating handle, a locking device is slidably connected to the bottom of the grip, a moving groove is opened at the bottom of the grip, and a reset device is arranged on the left side of the grip.

[0006] Preferably, the locking device includes a moving hook, a pushing rod is fixedly connected to one side of the front of the moving hook, a pushing plate is fixedly connected to one side of the pushing rod, a moving spring is fixedly connected to the back of the moving hook, the other end of the moving spring is fixedly connected to one end of the moving groove, a limiting block is fixedly connected to the left side of the moving hook, a triangular column is arranged opposite to the back of the limiting block, a snap spring is fixedly connected to the left side of the triangular column, and one end of the snap spring is fixedly connected to a support block.

[0007] Preferably, the reset device includes a reset block, a limiting groove is opened on the side of the reset block, a reset groove is opened inside the grip on the right side of the support block, a moving rod is fixedly connected to the left side of the triangular column, a connecting rod is slidably connected inside the moving rod, a threaded rod is fixedly connected to one end of the connecting rod, and a knob is rotatably connected to the left side of the support block.

[0008] Preferably, a suture thread is arranged at one end of the working head, two absorbable skull clips are slidably connected to the surface of the suture thread, and a skull is fixedly connected between the two absorbable skull clips.

[0009] As a preference of the above technical solution, the limiting groove is formed in accordance with the triangular column, the triangular column is slidably connected to the limiting groove, the knob is threadedly connected to the threaded rod, the connecting rod is inserted into the support block, and the connecting rod is rotatably connected to the support block.

[0010] As a preference of the above technical solution, the connecting rod can drive the moving rod to move.

[0011] The beneficial effects of the present utility model are as follows:

[0012] (1) During the operation, when the device needs to be used for operation, by pressing the push rod, the limiting block is blocked by the triangular column and cannot rebound, which can prevent the items in the device from popping out due to accidental contact with the rotating handle during taking and placing, and the need to handle it, resulting in low work efficiency. In this way, the work efficiency can be improved;

[0013] (2) By resetting the position of the limiting block through the knob, the device is locked. The knob can perform operations and locking more stably and accurately, and is not prone to sliding, damage, etc. Description of the Drawings

[0014] Figure 1 Shown is an overall structure diagram of a bone flap fixation device after craniotomy;

[0015] Figure 2 Shown is a bottom structure diagram of a bone flap fixation device after craniotomy;

[0016] Figure 3 Shown is a structure diagram of a locking device in a bone flap fixation device after craniotomy;

[0017] Figure 4 Shown is a structure diagram of a reset device in a bone flap fixation device after craniotomy;

[0018] Figure 5 Shown is a sectional structure diagram of a reset device in a bone flap fixation device after craniotomy.

[0019] In the figure: 1, grip; 2, gun body; 3, working head; 4, rotating handle; 5, limiting hook; 6, locking device; 601, moving hook; 602, push rod; 603, push plate; 604, moving spring; 605, limiting block; 606, triangular column; 607, buckle spring; 7, moving groove; 8, reset device; 801, reset block; 802, limiting groove; 803, reset groove; 804, moving rod; 805, connecting rod; 806, threaded rod; 807, knob; 9, suture; 10, absorbable fixing clip; 11, skull. Detailed Embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0021] As Figures 1 to 5 shown, a bone flap fixation device for after craniotomy includes a grip 1. A gun body 2 is fixedly connected to the top of the grip 1. A working head 3 is rotatably connected to one side of the gun body 2. A rotating handle 4 is rotatably connected to the bottom of the grip 1. A limiting hook 5 is fixedly connected to one side of the rotating handle 4. A locking device 6 is slidably connected to the bottom of the grip 1. A moving groove 7 is formed in the bottom of the grip 1. A reset device 8 is arranged on the left side of the grip 1. When a user uses this device, the user can hold the grip 1 by hand, align the working head 3 with the place where the absorbable skull clamp 10 needs to process the suture 9, and press the rotating handle 4 for processing. The locking device 6 can be fitted with the limiting hook 5 so that the rotating handle 4 cannot rotate. Press the push plate 603 to use it. Use the reset device 8 to return the moving hook 601 to the position where it is fixed to the limiting hook 5, making the device unusable.

[0022] As Figures 3 to 4 shown, the locking device 6 includes a moving hook 601. A push rod 602 is fixedly connected to one side of the front surface of the moving hook 601. A push plate 603 is fixedly connected to one side of the push rod 602. A moving spring 604 is fixedly connected to the back surface of the moving hook 601. The other end of the moving spring 604 is fixedly connected to one end of the moving groove 7. A limiting block 605 is fixedly connected to the left side of the moving hook 601. A triangular column 606 is arranged at the position opposite to the back surface of the limiting block 605. A snap spring 607 is fixedly connected to the left side of the triangular column 606. One end of the snap spring 607 is fixedly connected to a support block. When the user has completed the preparatory work and needs to process, the user can press the push rod 602, so that the limiting block 605 squeezes the moving spring 604 inward and is finally blocked by the triangular column 606 and cannot rebound. This can prevent accidental touching of the rotating handle 4 during taking and placing, resulting in the ejection of items inside the device that need to be processed, leading to low work efficiency. In this way, the work efficiency can be improved.

[0023] As Figures 4 to 5As shown, the reset device 8 includes a reset block 801. A limiting groove 802 is formed on the side of the reset block 801. A reset groove 803 is formed inside the grip 1 on the right side of the support block. A moving rod 804 is fixedly connected to the left side of the triangular prism 606. A connecting rod 805 is slidably connected inside the moving rod 804. One end of the connecting rod 805 is fixedly connected to a threaded rod 806. A knob 807 is rotatably connected to the left side of the support block. When the user needs to lock it again after processing, the knob 807 can be rotated to drive the threaded rod 806 to move to the left, driving the connecting rod 805 and the moving rod 804 to move to the left, which can drive the triangular prism 606 to move to the left, so as to release the limiting block 605 to rebound and lock the rotating handle 4, and then the knob 807 can be tightened.

[0024] As Figure 4 shown, one end of the working rotating head 3 is provided with a suture 9. Two absorbable skull clamps 10 are slidably connected to the surface of the suture 9. A skull 11 is fixedly connected between the two absorbable skull clamps 10. As Figure 1 shown, the two absorbable skull clamps 10 are respectively located at the top and bottom of the skull 11. The working rotating head 3 mainly tightens and sutures the suture 9.

[0025] As Figures 4 to 5 shown, the limiting groove 802 is formed to fit the triangular prism 606. The triangular prism 606 is slidably connected to the limiting groove 802. The knob 807 is threadedly connected to the threaded rod 806. The connecting rod 805 is inserted into the support block, and the connecting rod 805 is rotatably connected to the support block. The triangular prism 606 can only move horizontally because of the limiting groove 802. A hole is formed inside the support block, and both the connecting rod 805 and the moving rod 804 can move inside the support block.

[0026] As Figures 4 to 5 shown, the connecting rod 805 can drive the moving rod 804 to move. There is a protrusion on the right side of the connecting rod 805, and there is a stop block at the left end of the moving rod 804. When the threaded rod 806 moves to the left, the protrusion will drive the stop block to move to the left.

[0027] Working principle

[0028] When the user is using the device, they can hold the handle 1 with their hand, align the working rotating head 3 with the place where the absorbable skull clamp 10 needs to process the suture 9, and press the rotating handle 4 for processing. When the user has completed the preparatory work and needs to proceed with the processing, they can press the push rod 602, causing the limit block 605 to squeeze the moving spring 604 inward, and finally being blocked by the triangular column 606 and unable to rebound. This can prevent accidental contact with the rotating handle 4 during the handling and placement, resulting in the ejection of items inside the device that need to be processed, leading to low work efficiency. In this way, the work efficiency can be improved. When the user needs to lock it again after processing, they can rotate the knob 807, driving the threaded rod 806 to move to the left, driving the connecting rod 805 and the moving rod 804 to move to the left, which can drive the triangular column 606 to move to the left, thus releasing the limit block 605 to rebound and locking the rotating handle 4, and then tightening the knob 807.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it.

Claims

1. A bone flap fixation device for use after craniotomy, characterized in that, It includes a grip (1), a gun body (2) is fixedly connected to the top of the grip (1), a working rotating head (3) is rotatably connected to one side of the gun body (2), a rotating handle (4) is rotatably connected to the bottom of the grip (1), a limiting hook (5) is fixedly connected to one side of the rotating handle (4), a locking device (6) is slidably connected to the bottom of the grip (1), a moving groove (7) is opened at the bottom of the grip (1), and a reset device (8) is arranged on the left side of the grip (1).

2. The bone flap fixation device for use after craniotomy according to claim 1, wherein, The locking device (6) includes a moving hook (601), a pushing rod (602) is fixedly connected to one side of the front of the moving hook (601), a pushing plate (603) is fixedly connected to one side of the pushing rod (602), a moving spring (604) is fixedly connected to the back of the moving hook (601), the other end of the moving spring (604) is fixedly connected to one end of the moving groove (7), a limiting block (605) is fixedly connected to the left side of the moving hook (601), a triangular column (606) is arranged at the position opposite to the back of the limiting block (605), a snap spring (607) is fixedly connected to the left side of the triangular column (606), and one end of the snap spring (607) is fixedly connected to a support block.

3. The bone flap fixation device for use after craniotomy according to claim 2, characterized in that, The reset device (8) includes a reset block (801), a limiting groove (802) is opened on the side of the reset block (801), a reset groove (803) is opened inside the grip (1) on the right side of the support block, a moving rod (804) is fixedly connected to the left side of the triangular column (606), a connecting rod (805) is slidably connected inside the moving rod (804), a threaded rod (806) is fixedly connected to one end of the connecting rod (805), and a knob (807) is rotatably connected to the left side of the support block.

4. A bone flap fixation device for use after craniotomy according to claim 3, characterized in that, A suture (9) is arranged at one end of the working rotating head (3), two absorbable skull clamps (10) are slidably connected to the surface of the suture (9), and a skull (11) is fixedly connected between the two absorbable skull clamps (10).

5. The bone flap fixation device for use after craniotomy according to claim 3, characterized in that, The limiting groove (802) is opened to fit the triangular column (606), the triangular column (606) is slidably connected to the limiting groove (802), the knob (807) is threadedly connected to the threaded rod (806), the connecting rod (805) is inserted into the support block, and the connecting rod (805) is rotatably connected to the support block.

6. The bone flap fixation device for after craniotomy according to claim 3, wherein The connecting rod (805) can drive the moving rod (804) to move.

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