Bone grafting assist device

Abstract

The utility model discloses a bone grafting assist device, which particularly relates to the technical field of orthopedic treatment and comprises a threaded connector, a fixed top block and a fixed handle block are fixedly connected to one side of the threaded connector, a connecting plate is fixedly connected to the bottom of the fixed top block, and the bottom of the connecting plate is fixedly connected to the top of the fixed handle block. A second spring is fixedly connected to one side of the threaded connector, a movable push rod is slidably connected to the side face of the threaded connector and the side face of the connecting plate in a penetrating mode, the movable push rod is located in the second spring, and a movable plate is fixedly connected to the end, away from the threaded connector, of the second spring. The top end of the pressing hand plate is fixedly connected with a fixing rod in a penetrating mode, the side face of the pressing hand plate is fixedly connected with a second rotating shaft in a penetrating mode, and the problem that due to the fact that the number of bone particles needing to be implanted is large and small, time and labor are wasted through a manual particle-by-particle implantation method, and an instrument for rapidly assisting in bone grafting needs to be designed is solved.

Description

Technical Field

[0001] The utility model relates to the field of orthopedic treatment, in particular to a bone implantation auxiliary device. Background Art

[0002] Bone grafting surgery uses transplanted bone tissue to fill the wound, or combines external bone tissue with internal grafted bone tissue to completely restore the bone to its original state, thereby helping patients restore the specific function and shape of the bone and giving the bone maximum mechanical strength.

[0003] During spinal surgery, when the spinal canal is blocked due to bone hyperplasia, trauma, etc., causing "lumbar spinal stenosis", the nerves will be compressed. Therefore, the doctor needs to use an electric knife to cut the spinal canal on the patient's back to remove the bone hyperplasia that causes spinal stenosis. The cut vertebral lamina bone is then cut into particles and implanted between the three lumbar transverse processes. However, since the vertebral particles that need to be implanted are large and small, the manual method of implanting them one by one is time-consuming and labor-intensive, so it is necessary to design a quick and auxiliary bone grafting device. Utility Model Content

[0004] The purpose of the utility model is to provide a bone grafting aid to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bone implant aid, comprising:

[0006] The top of the pressing hand plate passes through and is fixedly connected with a fixing rod, and the side of the pressing hand plate passes through and is fixedly connected with a rotating shaft second, and the pressing hand plate is rotatably connected to the side of the fixed handle block through the rotating shaft second, and the surface of the fixing rod is fitted with the side surface of the bottom end of the movable plate, and the side surface of the movable plate is provided with an elliptical hole first, and the surface of the movable push rod movably fits the inner wall of the elliptical hole first, and one end of the movable push rod is fixedly connected with a feeding head;

[0007] The inner wall of one end of the gun barrel is threadedly connected to the threaded surface of the threaded connector, and the side surface of the feeding head is slidably connected to the inner wall of the gun barrel.

[0008] Preferably, a spring 1 is fixedly connected to a side of the connecting plate away from the movable plate, and a reset plate is fixedly connected to an end of the spring 1 away from the connecting plate. A rotating shaft 1 is passed through and fixedly connected to the top of the reset plate. The reset plate is rotatably connected to the side of the fixed top block through the rotating shaft 1. An elliptical hole 2 is opened on the side of the reset plate, and the surface of the movable push rod movably fits into the inner wall of the elliptical hole 2.

[0009] Preferably, both sides of the fixed top block are fixedly connected with stop columns, and the side surfaces of the top end of the reset plate are movably fitted to the side surfaces of the stop columns.

[0010] Preferably, the bottom of the fixed top block is L-shaped, and the side surface of the top end of the movable plate is movably fitted to the turning surface of the L-shaped bottom of the fixed top block.

[0011] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0012] By providing a gun barrel and a movable push rod, the movable push rod realizes intermittent progressive operation under the action of the movable plate, spring 2 and the fixed rod, so that the vertebral particles in the gun barrel can be continuously filled between the bone grafting areas, which facilitates convenient, visible, fast and safe intervertebral bone grafting under spinal endoscopy, greatly improving the surgical efficiency of bone grafting surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0017] Description of reference numerals:

[0018] 1. Gun barrel; 2. Fixed top block; 3. Connecting plate; 4. Spring 1; 5. Reset plate; 6. Movable push rod; 7. Threaded connector; 8. Spring 2; 9. Movable plate; 10. Pressing hand plate; 11. Fixed handle block; 12. Feeding head; 13. Rotating shaft 1; 14. Stop column; 15. Fixed rod; 16. Rotating shaft 2. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] The utility model provides Figure 1-Figure 3 A bone implant aid is shown, comprising:

[0021] A threaded connector 7 is fixedly connected to one side of the threaded connector 7 with a fixed top block 2 and a fixed handle block 11, a connecting plate 3 is fixedly connected to the bottom of the fixed top block 2, and the bottom of the connecting plate 3 is fixedly connected to the top of the fixed handle block 11, a spring 2 8 is fixedly connected to one side of the threaded connector 7, and a movable push rod 6 is slidably connected to the sides of the threaded connector 7 and the connecting plate 3, and the movable push rod 6 is located inside the spring 2 8, and the end of the spring 2 8 away from the threaded connector 7 is fixedly connected to the movable plate 9, and the fixed handle A pressing hand plate 10 is provided on one side of the block 11, a fixing rod 15 is passed through and fixedly connected to the top of the pressing hand plate 10, a rotating shaft 2 16 is passed through and fixedly connected to the side of the pressing hand plate 10, the pressing hand plate 10 is rotatably connected to the side of the fixed handle block 11 through the rotating shaft 2 16, the surface of the fixing rod 15 is fitted to the side of the bottom end of the movable plate 9, an elliptical hole 1 is opened on the side of the movable plate 9, the surface of the movable push rod 6 is movably fitted to the inner wall of the elliptical hole 1, and one end of the movable push rod 6 is fixedly connected to the feeding head 12;

[0022] The inner wall of the gun barrel 1 at one end is threadedly connected to the threaded surface of the threaded connector 7, and the side of the feeding head 12 is slidably connected to the inner wall of the gun barrel 1, which can continuously fill the vertebral particles, thereby greatly improving the efficiency of spinal surgery.

[0023] Furthermore, a spring 4 is fixedly connected to one side of the connecting plate 3 away from the movable plate 9, and a reset plate 5 is fixedly connected to one end of the spring 4 away from the connecting plate 3. A rotating shaft 13 is passed through and fixedly connected to the top of the reset plate 5. The reset plate 5 is rotatably connected to the side of the fixed top block 2 through the rotating shaft 13. An elliptical hole 2 is opened on the side of the reset plate 5, and the surface of the movable push rod 6 is movably fitted to the inner wall of the elliptical hole 2, so that the movable push rod 6 can be reset.

[0024] Furthermore, both sides of the fixed top block 2 are fixedly connected with stop columns 14, and the side surfaces of the top end of the reset plate 5 are movably fitted to the side surfaces of the stop columns 14, which can prevent the reset plate 5 from excessively rotating under the action of the spring 14, thereby driving the movable push rod 6 to move backward.

[0025] Furthermore, the bottom of the fixed top block 2 is L-shaped, and the side surface of the top of the movable plate 9 is movably fitted to the turning surface of the L-shaped bottom of the fixed top block 2, which can assist the movable plate 9 to change from an inclined state to a vertical state.

[0026] Through the above technical solution:

[0027] When in use, first load the vertebral particles to be implanted into the gun barrel 1, then rotate and fix the gun barrel 1 with the particles to one end of the threaded connector 7, then hold the fixed handle block 11 and press the hand plate 10, and press the hand plate 10, at this time, the pressing hand plate 10 is rotated under the action of the rotating shaft 16, so that the pressing hand plate 10 pushes the movable plate 9 forward through the fixed rod 15 to tilt, when the inner wall of the elliptical hole on the side of the movable plate 9 is tilted to fit the surface of the movable push rod 6, at this time, the movable plate 9 is pushed by the fixed rod 15 to drive the movable push rod 6 to move forward, and when the pressing hand plate 10 is released, At this time, the movable plate 9 performs a reset operation under the action of the spring 2 8, so that the movable plate 9 and the fixed rod 15 are gradually pushed away from the threaded connector 7 by the spring 2 8. At this time, the inner wall of the elliptical hole 1 on the side of the movable plate 9 is separated from the surface of the movable push rod 6, so that the movable plate 9 will not drive the movable push rod 6 to move backward. When the top of the movable plate 9 contacts the L-shaped turning surface at the bottom of the fixed top block 2, the side of the fixed rod 15 away from the movable plate 9 contacts the side of the connecting plate 3 away from the spring 1 4, thereby completing the reset operation. Repeating the pressing operation, the vertebral particles can be gradually implanted between the bone grafting areas through the movable push rod 6 and the feeding head 12;

[0028] When the movable push rod 6 needs to be reset, the reset plate 5 is pressed, and the elliptical hole 2 on the side of the reset plate 5 changes from being inclined to fit the surface of the movable push rod 6 to a vertical state. At this time, there is a gap between the elliptical hole 2 and the surface of the movable push rod 6, so that the doctor can perform the reset operation by holding the end of the movable push rod 6 away from the feeding head 12 and pulling it backward.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bone implant aid, characterized in that: include: A threaded connector (7), one side of the threaded connector (7) is fixedly connected to a fixed top block (2) and a fixed handle block (11), the bottom of the fixed top block (2) is fixedly connected to a connecting plate (3), the bottom of the connecting plate (3) is fixedly connected to the top of the fixed handle block (11), one side of the threaded connector (7) is fixedly connected to a spring 2 (8), the sides of the threaded connector (7) and the connecting plate (3) are both slidably connected with a movable push rod (6), the movable push rod (6) is located inside the spring 2 (8), the end of the spring 2 (8) away from the threaded connector (7) is fixedly connected to a movable plate (9), the A pressing hand plate (10) is provided on one side of the fixed handle block (11), a fixing rod (15) is passed through and fixedly connected to the top of the pressing hand plate (10), a rotating shaft (16) is passed through and fixedly connected to the side of the pressing hand plate (10), the pressing hand plate (10) is rotatably connected to the side of the fixed handle block (11) through the rotating shaft (16), the surface of the fixing rod (15) is fitted to the side of the bottom end of the movable plate (9), an elliptical hole (1) is opened on the side of the movable plate (9), the surface of the movable push rod (6) is movably fitted to the inner wall of the elliptical hole (1), and one end of the movable push rod (6) is fixedly connected to a feeding head (12); A gun barrel (1), wherein the inner wall of one end of the gun barrel (1) is threadedly connected to the threaded surface of a threaded connector (7), and the side surface of the feeding head (12) is slidably connected to the inner wall of the gun barrel (1).

2. A bone implantation aid according to claim 1, characterized in that: A spring 1 (4) is fixedly connected to one side of the connecting plate (3) away from the movable plate (9); a reset plate (5) is fixedly connected to one end of the spring 1 (4) away from the connecting plate (3); a rotating shaft 1 (13) is passed through and fixedly connected to the top of the reset plate (5); the reset plate (5) is rotatably connected to the side of the fixed top block (2) through the rotating shaft 1 (13); an elliptical hole 2 is opened on the side of the reset plate (5); and the surface of the movable push rod (6) is movably fitted to the inner wall of the elliptical hole 2.

3. The bone implantation aid according to claim 2, characterized in that: Both sides of the fixed top block (2) are fixedly connected with blocking columns (14), and the side surfaces of the top end of the reset plate (5) are movably fitted to the side surfaces of the blocking columns (14).

4. The bone implantation aid according to claim 1, characterized in that: The bottom of the fixed top block (2) is L-shaped, and the side surface of the top end of the movable plate (9) is movably fitted to the turning surface of the L-shaped bottom of the fixed top block (2).

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