Bone hammer used in multiple scenes

Abstract

The utility model relates to the technical field of medical instruments, in particular to a multi-scene use bone hammer which comprises a handle rod, a bone hammer column head arranged at one end of the handle rod, a first bone hammer head arranged at one end of the bone hammer column head and a second bone hammer head arranged at the other end of the bone hammer column head. And the second bone hammer head is a plastic bone hammer head. In a knee joint replacement operation, an original bone surface needs to be cut off, a bone hammer and a bone knife are used in cooperation, at the moment, a first bone hammer head (namely a metal bone hammer head) needs to be used for knocking the tail of the bone knife, bone cutting is achieved, and after the bone is cut off, a metal joint is fixed to the surface of the joint after the bone is cut off; the second bone hammer head (namely the plastic bone hammer head) is used for knocking a metal joint, fixation and replacement of the joint are achieved, the applicability of the bone hammer is improved, and the multi-scene use requirements of the bone hammer are met.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a bone hammer that can be used in multiple scenarios. Background Art

[0002] A bone hammer is an indispensable tool in orthopedic surgery. Its main function is to strike and process various osteochisels, bone needles and bone nails to achieve bone fixation and repair.

[0003] Bone hammers are widely used in many common surgeries such as hip and knee replacements, fracture fixation surgery, spinal surgery, and bone correction surgery. However, the bone hammers required for different surgeries are different, and bone hammers with different functions cannot be used in other surgeries. Therefore, a surgery requires multiple bone hammers of different models to work together, which brings great inconvenience to the surgical process and seriously affects the efficiency of the surgery, so further improvement is needed. Utility Model Content

[0004] In order to improve the applicability of the bone hammer and meet the needs of using the bone hammer in multiple scenarios, the present application provides a bone hammer for use in multiple scenarios.

[0005] The present application provides a multi-scenario use of a bone hammer using the following technical solution:

[0006] A bone hammer for use in multiple scenarios comprises a handle bar, a bone hammer column arranged at one end of the handle bar, a first bone hammer head arranged at one end of the bone hammer column, and a second bone hammer head arranged at the other end of the bone hammer column, wherein the first bone hammer head is a metal bone hammer head and the second bone hammer head is a plastic bone hammer head.

[0007] By adopting the above technical solution, for example, in knee replacement surgery, the original bone surface needs to be removed and a bone hammer and a bone knife are used in combination. At this time, the first bone hammer head (i.e., a metal bone hammer head) needs to be used to knock the tail of the bone knife to achieve bone removal. After the bone is removed, the metal joint is fixed to the joint surface after the bone is removed, and the second bone hammer head (i.e., a plastic bone hammer head) is used to knock the metal joint to achieve fixation and joint replacement, thereby improving the applicability of the bone hammer and meeting the needs of using the bone hammer in multiple scenarios.

[0008] Preferably, the first bone hammer head is detachably connected to the bone hammer column head.

[0009] By adopting the above technical solution, the first hammer head and the hammer stylus are detachable, which, on the one hand, facilitates the replacement of the first hammer head, and on the other hand, facilitates the disassembly, cleaning and disinfection of the first hammer head.

[0010] Preferably, a first threaded hole is coaxially formed at one end of the bone hammer column head, and a first screw rod threadedly connected to the first threaded hole is coaxially protruded and fixed at one end of the first bone hammer head.

[0011] By adopting the above technical solution, the detachable connection between the first hammer head and the hammer column head is achieved through the first screw rod and the first threaded hole.

[0012] Preferably, a first sealing ring sleeve which is sleeved on the end of the bone hammer column head is coaxially fixed to the end surface of the first bone hammer head.

[0013] By adopting the above technical solution, a first sealing ring sleeve is additionally provided on the end of the hammer stud, thereby improving the sealing between the hammer stud and the first hammer head and reducing the possibility of rust on the first threaded hole and the first screw rod.

[0014] Preferably, a first spring is arranged in the first threaded hole, and an end surface of the first screw rod is pressed against one end of the first spring.

[0015] By adopting the above technical solution, a first spring is built into the first threaded hole. When the first screw is locked in the first threaded hole, the first screw presses the first spring, causing the first spring to undergo elastic deformation, thereby providing a reverse thrust to the first screw, effectively reducing the possibility of the first screw loosening.

[0016] Preferably, a metal joint is provided at the end of the bone hammer column head, and the second bone hammer head is fixedly connected to the metal joint.

[0017] By adopting the above technical solution and adding a metal joint, the overall weight of the second bone hammer head is increased, and the striking force of the second bone hammer head is increased.

[0018] Preferably, the metal joint is detachably connected to the hammer stud.

[0019] By adopting the above technical solution, the metal joint and the hammer column head are detachable, which is convenient for replacing the second hammer head on the one hand, and convenient for disassembly, cleaning and disinfection of the second hammer head on the other hand.

[0020] Preferably, a second threaded hole is coaxially opened at one end of the hammer column head, and a second screw rod threadedly connected to the second threaded hole is coaxially protruded and fixed at one end of the metal joint.

[0021] By adopting the above technical solution, the detachable connection between the metal joint and the hammer column head is achieved through the second screw rod and the second threaded hole.

[0022] Preferably, a second sealing ring sleeve which is sleeved on the end of the hammer column head is coaxially fixed to the end surface of the metal joint.

[0023] By adopting the above technical solution, a second sealing ring sleeve is additionally provided on the end of the bone hammer column head, thereby improving the sealing between the bone hammer column head and the metal joint and reducing the possibility of rusting of the second threaded hole and the second screw rod.

[0024] Preferably, a second spring is arranged in the second threaded hole, and an end surface of the second screw rod is pressed against one end of the second spring.

[0025] By adopting the above technical solution, a second spring is built into the second threaded hole. When the second screw is locked in the second threaded hole, the second screw presses the second spring, causing the second spring to elastically deform, thereby providing a reverse thrust to the second screw, effectively reducing the possibility of the second screw loosening.

[0026] In summary, the utility model has the following beneficial effects:

[0027] 1. In knee replacement surgery, the original bone surface needs to be removed, and a bone hammer and a bone knife are used together. At this time, the first bone hammer head (i.e., the metal bone hammer head) needs to be used to knock the tail of the bone knife to achieve bone removal. After the bone is removed, the metal joint is fixed to the joint surface after the bone is removed, and the second bone hammer head (i.e., the plastic bone hammer head) is used to knock the metal joint to achieve fixation and joint replacement, thereby improving the applicability of the bone hammer and meeting the needs of using the bone hammer in multiple scenarios;

[0028] 2. The first bone hammer head and the bone hammer column head are detachable, which is convenient for replacing the first bone hammer head on the one hand, and convenient for disassembly, cleaning and disinfection of the first bone hammer head on the other hand;

[0029] 3. The metal joint and the bone hammer column head are detachable, which is convenient for replacing the second bone hammer head on the one hand, and convenient for disassembly, cleaning and disinfection of the second bone hammer head on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural diagram of a bone hammer used in multiple scenarios;

[0031] Figure 2 It is a schematic diagram of the cross-sectional structure of a bone hammer used in multiple scenarios;

[0032] Figure 3 It is a schematic diagram of the structure of the bone hammer stigma;

[0033] Figure 4 It is a schematic diagram of the connection structure between the hammer column head and the first hammer head and the second hammer head;

[0034] Figure 5 It is a schematic diagram of the connection structure between the metal joint and the second bone hammer head.

[0035] In the figure, 1, handle rod; 11, connecting rod; 111, third threaded hole; 112, fourth screw; 12, handle sleeve; 121, groove; 122, plug-in blind hole; 123, third screw; 2, bone hammer column head; 21, fourth threaded hole; 22, first threaded hole; 23, second threaded hole; 24, first spring; 25, second spring; 3, first bone hammer head; 31, first screw; 32, first sealing ring sleeve; 4, second bone hammer head; 41, rivet column; 5, metal joint; 51, second screw; 52, second sealing ring sleeve; 53, rivet hole. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] The present application embodiment discloses a bone hammer for use in multiple scenarios, referring to Figure 1 The bone hammer comprises a handle bar 1, a bone hammer column 2 detachably connected to one end of the handle bar 1, a first bone hammer head 3 detachably connected to one end of the bone hammer column 2, and a second bone hammer head 4 arranged at the other end of the bone hammer column 2.

[0038] Reference Figure 1 , Figure 2 The handle bar 1 comprises a connecting rod 11 and a handle cover 12 detachably connected to one end of the connecting rod 11. The outer peripheral wall of the handle cover 12 is provided with a gripping portion protruding therefrom. The gripping portion has a plurality of grooves 121 for human fingers to be inserted. The front end of the handle cover 12 has a plug-in blind hole 122 for the end of the connecting rod 11 to be inserted. The inner wall of the plug-in blind hole 122 is coaxially fixedly connected with a third screw rod 123. The end surface of the connecting rod 11 is coaxially provided with a third threaded hole 111 for the third screw rod 123 to be threadedly connected.

[0039] Reference Figure 2 , Figure 3 The end of the connecting rod 11 away from the handle sleeve 12 is conical, and the end of the connecting rod 11 away from the handle sleeve 12 is coaxially fixedly connected with a fourth screw rod 112. A fourth threaded hole 21 for threaded connection of the fourth screw rod 112 is radially opened in the middle of the outer peripheral wall of the bone hammer column head 2, and a first threaded hole 22 and a second threaded hole 23 are coaxially opened at both ends of the bone hammer column head 2, and the first threaded hole 22 and the second threaded hole 23 are respectively built with a first spring 24 and a second spring 25.

[0040] Reference Figure 3 , Figure 4The first bone hammer head 3 is a metal bone hammer head. One end of the first bone hammer head 3 is coaxially protruded and fixed with a first screw rod 31 threadedly connected to the first threaded hole 22. After the first screw rod 31 is locked in the first threaded hole 22, the end face of the first screw rod 31 abuts against the first spring 24 and the first spring 24 is in a compressed state. The end face of the first bone hammer head 3 is coaxially fixed with a first sealing ring sleeve 32 sleeved on the end of the bone hammer column head 2. The outer peripheral wall of the first sealing ring sleeve 32 has anti-slip patterns. The striking surface of the first bone hammer head 3 is concave, and the radius of the concave surface is between 60mm and 65mm.

[0041] Reference Figure 4 , Figure 5 A metal joint 5 is provided between the hammer column head 2 and the second hammer column head 4, and the metal joint 5 is detachably connected to the hammer column head 2. Specifically, a second screw 51 threadedly connected to the second threaded hole 23 is coaxially protruded and fixed on the end face of the metal joint 5. After the second screw 51 is locked in the second threaded hole 23, the end face of the second screw 51 abuts against the second spring 25 and the second spring 25 is in a compressed state. A second sealing ring sleeve 52 sleeved on the end of the hammer column head 2 is coaxially fixed on the end face of the metal joint 5, and the outer peripheral wall of the second sealing ring sleeve 52 has anti-slip patterns.

[0042] The second bone hammer head 4 is a plastic bone hammer head, and the second bone hammer head 4 is fixedly connected to the metal joint 5. Specifically, the end surface of the metal joint 5 away from the bone hammer column head 2 is provided with a rivet hole 53 in the axial direction. The second bone hammer head 4 is integrally formed with a rivet column 41 inserted in the rivet hole 53. In this embodiment, the rivet column 41 is interference-fitted in the rivet hole 53. The striking surface of the second bone hammer head 4 is a convex surface, and the radius of the convex surface is between 680mm and 690mm, which is convenient for striking the metal implant. The striking surface of the second bone hammer head 4 has a plurality of coaxially arranged circular anti-skid grooves.

[0043] The implementation principle of a bone hammer for multiple scenarios in an embodiment of the present application is as follows: For example, in a knee replacement surgery, the original bone surface needs to be removed, and a bone hammer and a bone knife are used in combination. At this time, the first bone hammer head 3 (i.e., a metal bone hammer head) needs to be used to knock the tail of the bone knife to achieve bone removal. After the bone is removed, the metal joint is fixed to the joint surface after the bone is removed, and the second bone hammer head 4 (i.e., a plastic bone hammer head) is used to knock the metal joint to achieve fixation and joint replacement, thereby improving the applicability of the bone hammer and meeting the requirements for the use of the bone hammer in multiple scenarios. After the operation, the various components are disassembled, disinfected and sterilized, and can be reused.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bone hammer for use in multiple scenarios, characterized in that: The invention comprises a handle bar (1), a bone hammer head (2) arranged at one end of the handle bar (1), a first bone hammer head (3) arranged at one end of the bone hammer head (2), and a second bone hammer head (4) arranged at the other end of the bone hammer head (2), wherein the first bone hammer head (3) is a metal bone hammer head, and the second bone hammer head (4) is a plastic bone hammer head.

2. The bone hammer for multiple use scenarios according to claim 1, characterized in that: The first bone hammer head (3) is detachably connected to the bone hammer column head (2).

3. The bone hammer for multiple use scenarios according to claim 2, characterized in that: A first threaded hole (22) is coaxially formed at one end of the bone hammer column head (2), and a first screw rod (31) threadedly connected to the first threaded hole (22) is coaxially protruded and fixed at one end of the first bone hammer head (3).

4. The bone hammer for multiple use scenarios according to claim 3, characterized in that: A first sealing ring sleeve (32) sleeved on the end of the bone hammer column head (2) is coaxially fixed to the end surface of the first bone hammer head (3).

5. The bone hammer for multiple use scenarios according to claim 3, characterized in that: A first spring (24) is arranged in the first threaded hole (22), and an end surface of the first screw rod (31) is pressed against one end of the first spring (24).

6. The bone hammer for multiple use scenarios according to claim 1, characterized in that: A metal joint (5) is provided at the end of the bone hammer column head (2), and the second bone hammer head (4) is fixedly connected to the metal joint (5).

7. The bone hammer for multiple use scenarios according to claim 6, characterized in that: The metal joint (5) is detachably connected to the hammer column head (2).

8. The bone hammer for multiple use scenarios according to claim 7, characterized in that: A second threaded hole (23) is coaxially formed at one end of the hammer column head (2), and a second screw rod (51) threadedly connected to the second threaded hole (23) is coaxially protruded and fixed at one end of the metal joint (5).

9. The bone hammer for multiple use scenarios according to claim 8, characterized in that: A second sealing ring sleeve (52) sleeved on the end of the hammer column head (2) is coaxially fixed to the end surface of the metal joint (5).

10. The bone hammer for multiple use scenarios according to claim 8, characterized in that: A second spring (25) is disposed in the second threaded hole (23), and an end surface of the second screw rod (51) is pressed against one end of the second spring (25).

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