Medical bone hammer

Abstract

The invention relates to a medical bone hammer which comprises a length-adjustable handle, a support and a bone hammer body, the support is assembled at one end of the handle, the bone hammer body is rotatably assembled in the support through a rotating rod, and a locking piece capable of fixing the angle of the bone hammer body is further arranged on the support. A cavity extending in the length direction of the bone hammer body is formed in the bone hammer body, and a damping device is arranged in the cavity and used for counteracting counter-acting force borne by the bone hammer body. The bone hammer body with the adjustable angle is arranged, and the damping device is arranged at one end in the bone hammer body, so that the weights of the two ends of the bone hammer body are uneven, and therefore when the bone hammer is hammered, the damping device is used for absorbing the counter-acting force of the bone hammer body, and meanwhile the bone hammer body is vertically or inversely arranged; the bone hammer main body automatically deflects in the bracket by utilizing the weight difference of the two ends of the bone hammer main body, so that a user can conveniently adjust the angle.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a medical bone hammer. Background Art

[0002] A bone hammer is a common medical device, mainly used to process bones in orthopedic surgery. A bone hammer is generally composed of a handle and a hammer head. The handle is generally made of metal, and the hammer head is made of harder materials, such as stainless steel. In orthopedic surgery, a bone hammer can be used for a variety of operations, such as knocking bones, adjusting the position of bones, etc.

[0003] Before using a bone hammer, the doctor needs to disinfect it. Disinfection can generally be done by high-temperature steam disinfection or chemical disinfection, which can effectively kill microorganisms such as bacteria and viruses. In addition, in orthopedic surgery, the use of a bone hammer requires special caution, because the operation of the bone hammer requires great force, and some improper operations may cause bone fractures or dislocations. Therefore, the doctor needs to be very proficient in the use of the bone hammer, and also pay attention to the strength and direction of the operation to avoid causing unnecessary harm to the patient.

[0004] During use, the existing bone hammers are prone to angle deviation and slippage due to the tricky angles and inconvenient operating conditions encountered in various surgeries. The hammering is not stable enough and requires high operating skills from the doctor. Therefore, there is an urgent need for a medical bone hammer that can adjust the angle of the hammer head to meet surgical needs and improve the stability of hammering. Summary of the invention

[0005] The present application provides a medical bone hammer, which can solve the problems of existing bone hammers that it is difficult to adjust the angle of the hammer head according to surgical requirements, it is not stable enough when hammering, and it requires high operating skills of doctors to use the bone hammer.

[0006] The technical solution of the present application is as follows: A medical bone hammer, comprising: Adjustable length handle; a bracket mounted on one end of the handle; A bone hammer body is rotatably assembled in the bracket through a rotating rod. The bracket is also provided with a locking piece capable of fixing the angle of the bone hammer body. A cavity extending along the length direction of the bone hammer body is provided inside the bone hammer body. A shock absorbing device is provided inside the cavity to offset the reaction force exerted on the bone hammer body. The shock absorbing device is arranged at one end of the cavity so that the two ends of the bone hammer body can automatically deflect under the gravity difference.

[0007] By adopting the above scheme, a bone hammer body capable of adjusting the angle is provided, and a shock absorbing device is provided at one end inside the bone hammer body, so that the weight at both ends of the bone hammer body is uneven, so that the device can use the shock absorbing device to absorb the reaction force of the bone hammer body when hammering. At the same time, by placing the bone hammer body upright or inverted and utilizing the weight difference at both ends of the bone hammer body, the bone hammer body is automatically deflected inside the bracket, so that the user can adjust the angle conveniently.

[0008] In one embodiment of the present application, a strip through hole extending perpendicular to the length direction of the bone hammer body is provided inside the bone hammer body, and both ends of the rotating rod pass through the strip through hole, so that the rotating rod can move along the length direction of the strip through hole, and the bone hammer body is arranged in the bracket, and both ends of the rotating rod pass through the bracket, so that the bone hammer body can deflect in the bracket with the rotating rod as the axis.

[0009] In one embodiment of the present application, the locking member comprises: A movable plate, the movable plate is arranged on one side of the bracket, and a side of the movable plate close to the bracket is fixedly connected to one end of the rotating rod; A clamping plate, wherein the clamping plate is arranged on the other side of the bracket, and the side of the clamping plate close to the bracket is fixedly connected to the other end of the rotating rod, and the side of the clamping plate close to the bracket is fixedly connected to a clamping rod, and the bone hammer body is provided with a plurality of clamping holes that can be mutually engaged with the clamping rod, and the plurality of clamping holes are distributed at intervals along the circumference of the strip-shaped through hole, and a limiting groove is provided on the side of the clamping plate close to the bracket, and a limiting column is provided on the bracket, and one end of the limiting column is assembled on the other side of the bracket, and the other end extends into the limiting groove and is slidably connected to the limiting groove; and A columnar spring is arranged on one side of the movable plate and sleeved on the rotating rod, and two ends of the columnar spring are respectively connected and fixed to the movable plate and the bracket.

[0010] By adopting the above scheme, by providing the engaging plate and the moving plate, when the angle of the bone hammer body of the device needs to be adjusted, the moving plate is controlled to move, thereby driving the engaging plate to move, thereby driving the engaging rod to disengage from the engaging hole, thereby adjusting the angle of the bone hammer body. After the angle adjustment is completed, the moving plate is released so that the engaging rod can be inserted into the engaging hole under the elastic force of the columnar spring and continuously engaged with the engaging hole, thereby fixing the angle of the bone hammer body.

[0011] In one embodiment of the present application, the shock absorbing device comprises: A guide rod, the guide rod is arranged in the cavity along the length direction of the bone hammer body, and both ends of the guide rod are respectively connected and fixed to the bone hammer body; A plurality of weight plates are sleeved on the outside of the guide rod.

[0012] By adopting the above scheme, a cavity is set inside the bone hammer body, and a plurality of counterweight plates are stacked along the length direction of the cavity, so that when the bone hammer body is hammered, the reaction force received can cause the internal counterweight plate to vibrate, thereby offsetting the reaction force, avoiding the bone hammer itself from rebounding due to the reaction force, improving the stability of the device when hammering, and greatly reducing the doctor's operating requirements for the device. At the same time, because the counterweight plate vibrates within the cavity at one end of the bone hammer body, the weight at both ends of the bone hammer body is uneven, which is convenient for the user to adjust the angle of the bone hammer body by using the gravity difference at the two ends.

[0013] In one embodiment of the present application, the guide rod is a rectangular rod, a rectangular through hole is opened in the middle of the counterweight plate, and the guide rod passes through the rectangular through hole, so that multiple counterweight plates can move on the guide rod along the length direction of the guide rod.

[0014] In one embodiment of the present application, the shock absorbing device further includes two groups of limiting structures, and the two groups of limiting structures are respectively arranged on two opposite hole walls of the rectangular through hole.

[0015] In one embodiment of the present application, the limiting structure includes: A rotating frame, one end of which is fixedly mounted on the hole wall of the rectangular through hole; A rotating roller is rotatably mounted on the other end of the rotating frame.

[0016] By adopting the above scheme, a rectangular rod is used to guide the counterweight plate during vibration, and a rotating roller that can rotate on the rectangular rod is provided. This reduces the resistance encountered by the vibration plate when it vibrates along the guide rod, and ensures that the vibration of the counterweight plate is stable while making it smoother during vibration.

[0017] In one embodiment of the present application, the handle comprises: A fixed round rod, one end of which is connected and fixed to the bracket; An extended round rod, one end of which is provided with a connecting rope assembly; The connecting sleeve is threadedly engaged with the two ends of the connecting sleeve respectively by the other end of the fixed round rod and the other end of the extended round rod.

[0018] By adopting the above solution and providing a fixed round rod and an extended round rod, the user can choose whether to extend the handle of the device according to specific usage conditions so as to obtain a stronger hammering effect.

[0019] In one embodiment of the present application, the connecting rope assembly includes: A hook spring, wherein one end of the extended round rod is provided with a placement groove extending along the length direction of the extended round rod, and one end of the hook spring is fixedly assembled on the inner wall of the placement groove close to the fixed round rod; An elastic rope ring, the elastic rope ring is connected and fixed to the other end of the hook spring; A clamping strip is arranged at the notch of the placement groove, and the elastic rope ring is sleeved on the outside of the clamping strip.

[0020] By adopting the above solution, when using the device, the user can pull out the elastic rope ring and put it on the user's wrist, thereby reducing the possibility of slipping out of the hand during use.

[0021] In one embodiment of the present application, the bone hammer body comprises: A hammer body, wherein the cavity is provided inside the hammer body, and assembly grooves are respectively provided at both ends of the hammer body; Two hammer heads are threadedly connected in the assembly groove.

[0022] By adopting the above scheme, when hammer heads of different shapes are needed for hammering, the required hammer head combination can be selected and installed into the hammer body, which is convenient for users to switch the hammer heads conveniently. At the same time, the detachable method also ensures that the cleaning effect is more thorough when the device is disinfected and cleaned subsequently.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. A bone hammer body capable of adjusting the angle is provided, and a shock absorbing device is provided at one end inside the bone hammer body, so that the device can use the shock absorbing device to absorb the reaction force of the bone hammer body when hammering. Since the weight at both ends of the bone hammer body is uneven, when adjusting the angle of the bone hammer body, it is convenient for the user to use the gravity difference at both ends to make the bone hammer body automatically deflect inside the bracket, thereby improving the convenience of adjusting the angle of the bone hammer body.

[0024] 2. By arranging multiple counterweight plates inside the bone hammer body, the reaction force received by the bone hammer body when hammering can cause the counterweight plates to vibrate, thereby offsetting the reaction force received by the bone hammer body itself, reducing the rebound generated when the device is hammered, and improving the hammering stability.

[0025] 3. By setting a rotating rod, and synchronously setting a moving plate and a locking plate at both ends of the rotating rod, the moving plate is moved by operating the moving plate to drive the locking rod on the locking plate to engage or disengage with the locking hole on the bone hammer body, so that the bone hammer body can adjust the angle as needed.

[0026] 4. By setting a rotating rod passing through the rectangular rod, the counterweight plate can only vibrate at one end inside the cavity due to the limiting effect of the rotating rod, so that the weight at both ends of the bone hammer body is uneven. When the user adjusts the angle of the bone hammer body, the weight difference at both ends of the bone hammer body can be used to make the bone hammer body itself deflect at an angle inside the bracket.

[0027] 5. By setting the fixed round rod and the extended round rod to be coaxially spliced, the user can adjust the length of the device handle according to actual surgical needs, thereby improving the convenience of using the device.

[0028] 6. By providing detachable hammer heads at both ends of the hammer body, the user can provide hammer heads of different shapes at both ends of the hammer body according to surgical needs, thereby avoiding the trouble of replacing the bone hammer device during surgery and improving the convenience of using the device.

[0029] 7. An elastic rope ring that can be pulled out or retracted is provided on the extended round rod. When in use, the elastic rope ring is put on the wrist of the user to further improve the stability of the user's hand holding the device so that the user will not slip out of the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view of a medical bone hammer provided in an embodiment of the present application; Figure 2 This is a front view of a bracket of a medical bone hammer provided in an embodiment of the present application; Figure 3 It is a front view of a limit column of a medical bone hammer provided in an embodiment of the present application; Figure 4 It is a plan view of a locking member of a medical bone hammer provided in an embodiment of the present application; Figure 5 It is a front view of a positioning hole of a medical bone hammer provided in an embodiment of the present application; Figure 6 It is a schematic diagram of the explosion of a bone hammer body of a medical bone hammer provided in an embodiment of the present application; Figure 7 It is a schematic plan view of a limiting structure of a medical bone hammer provided in an embodiment of the present application; Figure 8 It is a plan view of a handle of a medical bone hammer provided in an embodiment of the present application; Fig. 9 It is a cross-sectional view of a connecting rope assembly of a medical bone hammer provided in an embodiment of the present application.

[0031] Explanation of the reference numerals: 1. handle; 11. fixed round rod; 12. extended round rod; 121. connecting rope assembly; 1211. hook spring; 1212. elastic rope ring; 1213. clamping strip; 122. placement slot; 13. connecting sleeve; 2. bracket; 21. locking piece; 211. movable plate; 212. clamping plate; 2121. clamping rod; 2122. limiting slot; 213. columnar spring; 22. limiting column; 3. bone hammer body; 31. rotating rod; 32. cavity; 33. shock absorbing device; 331. guide rod; 332. counterweight plate; 3321. rectangular through hole; 333. limiting structure; 3331. rotating frame; 3332. rotating roller; 34. strip through hole; 35. clamping hole; 36. hammer body; 361. assembly slot; 37. hammer head. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-9 A medical bone hammer provided in the present application is described in further detail.

[0033] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 , is a medical bone hammer provided in an embodiment of the present application, comprising: a handle 1, a bracket 2 and a bone hammer body 3, wherein the handle 1 is adjustable, the bracket 2 is assembled on one end of the handle 1, the bone hammer body 3 is rotatably assembled in the bracket 2 through a rotating rod 31, the bracket 2 is also provided with a locking piece 21 capable of fixing the angle of the bone hammer body 3, a cavity 32 extending along the length direction of the bone hammer body 3 is provided inside the bone hammer body 3, a shock absorbing device 33 is provided inside the cavity 32 for offsetting the reaction force received by the bone hammer body 3, and the shock absorbing device 33 is arranged at the cavity 32 One end, so that the two ends of the bone hammer body 3 can automatically deflect under the gravity difference, by setting the bone hammer body 3 that can deflect according to the weight difference at its two ends, and fixing the bone hammer body 3 after the angle adjustment by locking, the device can fix the angle of the bone hammer. At the same time, a shock absorbing device 33 is set at one end inside the bone hammer, and the shock absorbing device 33 is used to offset the reaction force received by the bone hammer when it is hammered. Due to the setting of the shock absorbing device 33, the height difference at the two ends of the bone hammer body 3 is inconsistent. By placing the device upright or inverted as a whole, the bone hammer body 3 can be deflected without the need for manual intervention.

[0034] In this embodiment, the bone hammer body 3 and the handle 1 are both made of metal, specifically 316L or 317L austenitic stainless steel.

[0035] See also Figure 4 and Figure 5The bone hammer body 3 is provided with a strip through hole 34 extending perpendicular to the length direction of the bone hammer body 3, and both ends of the rotating rod 31 pass through the strip through hole 34, so that the rotating rod 31 can move along the length direction of the strip through hole 34. The bone hammer body 3 is arranged in the bracket 2, and both ends of the rotating rod 31 pass through the bracket 2, so that the bone hammer body 3 can deflect in the bracket 2 with the rotating rod 31 as the axis.

[0036] See also Figure 3 , Figure 4 and Figure 5 The locking member 21 includes: a moving plate 211, a locking plate 212 and a columnar spring 213, the moving plate 211 is arranged on one side of the bracket 2, the moving plate 211 is fixedly connected to one end of the rotating rod 31 on one side close to the bracket 2, the locking plate 212 is arranged on the other side of the bracket 2, the locking plate 212 is fixedly connected to the other end of the rotating rod 31 on one side close to the bracket 2, the locking plate 212 is fixedly connected to a locking rod 2121 on one side close to the bracket 2, a plurality of locking holes 35 that can be mutually engaged with the locking rod 2121 are provided on the bone hammer body 3, and the plurality of locking holes 35 are distributed at intervals along the circumference of the strip through hole 34, a limiting groove 2122 is provided on the side of the locking plate 212 close to the bracket 2, and a The limiting column 22 has one end assembled on the other side of the bracket 2, and the other end extends into the limiting groove 2122 and is slidably connected with the limiting groove 2122. The columnar spring 213 is arranged on one side of the movable plate 211 and is sleeved on the rotating rod 31. The two ends of the columnar spring 213 are respectively connected and fixed to the movable plate 211 and the bracket 2. By fixing the movable plate 211 and the engaging plate 212 on the two ends of the rotating rod 31 respectively, the bone hammer body 3 can rotate outside the movable rod, and the movable rod can move along the length direction of the strip through hole 34 on the bone hammer body 3 and the bracket 2, thereby driving the engaging rod 2121 on the engaging plate 212 to approach or move away from the engaging hole 35, so as to realize the locking or rotation of the bone hammer body 3.

[0037] In this embodiment, the columnar spring 213 is always kept in a compressed state, so that the movable plate 211 is always kept away from one side of the bracket 2, and the locking plate 212 on the other side is always in close contact with the bracket 2 to ensure that the locking rod 2121 is locked into the locking hole 35 to ensure that the angle of the bone hammer body 3 is fixed.

[0038] See also Figure 6The shock absorbing device 33 includes: a guide rod 331 and a counterweight plate 332, the number of the counterweight plates 332 is at least two, the guide rod 331 is arranged in the cavity 32 along the length direction of the bone hammer body 3, the two ends of the guide rod 331 are respectively connected and fixed to the bone hammer body 3, at least two counterweight plates 332 are sleeved on the outside of the guide rod 331, and by arranging multiple counterweight plates 332 inside the bone hammer body 3, the reaction force received by the bone hammer body 3 during hammering can be transmitted to the counterweight plate 332, causing the counterweight plate 332 to vibrate to offset the reaction force received by the device, greatly reducing the rebound generated by the bone hammer body 3 during hammering, improving the stability of the bone hammer body 3 during hammering, and reducing the skill requirements required for using the device.

[0039] See also Figure 6 and Figure 7 The guide rod 331 is a rectangular rod, and a rectangular through hole 3321 is opened in the middle of the counterweight plate 332. The guide rod 331 passes through the rectangular through hole 3321, so that the plurality of counterweight plates 332 can move on the guide rod 331 along the length direction of the guide rod 331. By setting the guide rod 331, the counterweight plate 332 can be more stable when vibrating along the guide rod 331.

[0040] The shock absorbing device 33 further includes two groups of limiting structures 333 , which are respectively arranged on two opposite hole walls of the rectangular through hole 3321 .

[0041] The limiting structure 333 includes: a rotating frame 3331 and a rotating roller 3332. One end of the rotating frame 3331 is fixedly assembled on the hole wall of the rectangular through hole 3321, and the rotating roller 3332 is rotatably assembled on the other end of the rotating frame 3331. By setting the limiting structure 333, the limiting structure 333 is utilized to make the counterweight plate 332 vibrate along the length direction of the guide rod 331 when vibrating on the guide rod 331. At the same time, the rotating roller 3332 rolls on the guide rod 331, thereby effectively reducing the resistance encountered by the counterweight plate 332 when vibrating on the guide rod 331.

[0042] In this embodiment, the specific setting method of the rotating frame 3331 can be to open a strip groove (not shown) on the hole wall of the rectangular through hole 3321, set the rotating frame 3331 inside the strip groove, and rotatably assemble the rotating roller 3332 in the rotating frame 3331.

[0043] See also Figure 8The handle 1 includes: a fixed round rod 11, an extended round rod 12 and a connecting sleeve 13. One end of the fixed round rod 11 is connected and fixed to the bracket 2, and one end of the extended round rod 12 is provided with a connecting rope assembly 121. The other end of the fixed round rod 11 and the other end of the extended round rod 12 are respectively screwed with the two ends of the connecting sleeve 13. When it is necessary to extend the length of the handle 1 according to surgical requirements, the extended round rod 12 can be screwed to change the length of the handle 1 of the entire device to obtain a larger force arm for hammering.

[0044] In this embodiment, the fixed round rod 11 and the extended round rod 12 are both provided with an annular rubber layer (not shown) adhered to their respective surfaces, and anti-slip patterns are provided on the rubber layer. When the user holds the handle 1, by holding the annular rubber layer, the stability of the handle 1 can be further improved.

[0045] See also Fig. 9 The connecting rope assembly 121 includes: a hook spring 1211, an elastic rope ring 1212 and a clamping strip 1213. One end of the extended round rod 12 is provided with a placement groove 122 extending along the length direction of the extended round rod 12. One end of the hook spring 1211 is fixedly assembled on the inner wall of the placement groove 122 close to the fixed round rod 11. The elastic rope ring 1212 is connected and fixed to the other end of the hook spring 1211. The clamping strip 1213 is arranged at the notch of the placement groove 122. The elastic rope ring is sleeved on the outside of the clamping strip 1213. After extending the handle 1, when the handheld device is hammered, the elastic rope ring can be pulled out and sleeved on the user's wrist to strengthen the connection between the device and the user's wrist, improve the stability of the device when in use, and avoid it from slipping out of the hand.

[0046] See also Figure 6 The bone hammer body 3 includes: a hammer body 36 and a hammer head 37, the number of the hammer heads 37 is set to two, the cavity 32 is opened inside the hammer body 36, and the two ends of the hammer body 36 are respectively provided with assembly grooves 361, and the two hammer heads 37 are threadedly connected to the assembly grooves 361. By detachably assembling hammer heads 37 of different shapes at the two ends of the hammer body 36, the trouble of frequently replacing medical hammers during surgery is avoided. At the same time, the detachable connection method can also make the cleaning effect more thorough during subsequent high-temperature cleaning.

[0047] In summary, before using the device, you can first select a hammer head 37 of different shapes according to the surgical requirements, and screw the hammer head 37 into the assembly grooves 361 at both ends of the hammer body 36. At the same time, according to the surgical requirements and your own situation, you can determine whether it is necessary to screw the extension rod into the connecting sleeve 13 to extend the length of the entire handle 1. At the same time, according to the surgical requirements, you can press the moving plate 211 in the direction of the bone hammer body, and the moving plate 211 drives the rotating rod 31 to move in the direction of the clamping plate 212, driving the clamping plate 212 to move. The hammer body 3 is moved away from the bracket 2, so that the locking rod 2121 on the locking plate 212 is disengaged from the locking hole 35. Since a counterweight plate 332 is arranged at one end of the bone hammer body, after the locking rod 2121 is disengaged from the locking hole 35, the hammer body 3 can be placed upright (i.e., the bone hammer body 3 is above the handle 1) or inverted (i.e., the bone hammer body 3 is below the handle 1) under the gravity difference at both ends of the hammer body, with the rotating rod 31 as the axis, and perform angle deflection in two directions; When using the device, when the handle 1 is held and the bone hammer body is driven to hammer, the bone hammer reaches the hammering point, and the reaction force of the hammer body 3 facing the bone hammer is transmitted to the counterweight plate 332, causing the counterweight plate 332 to vibrate along the direction of the guide rod 331, thereby offsetting the reaction force received by the device at the moment of hammering, greatly reducing the rebound of the bone hammer body caused by the reaction force, and the doctor is more stable when holding the device for hammering.

[0048] 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 medical bone hammer, characterized in that: include: A handle with adjustable length (1); A bracket (2), the bracket (2) being mounted on one end of the handle (1); A bone hammer body (3) is rotatably mounted in the bracket (2) via a rotating rod (31); a locking piece (21) capable of fixing the angle of the bone hammer body (3) is also provided on the bracket (2); a cavity (32) extending along the length direction of the bone hammer body (3) is provided inside the bone hammer body (3); a shock absorbing device (33) is provided inside the cavity (32) for offsetting the reaction force received by the bone hammer body (3); the shock absorbing device (33) is arranged at one end of the cavity (32) so that the two ends of the bone hammer body (3) can automatically deflect under the gravity difference.

2. A medical bone hammer according to claim 1, characterized in that: A strip-shaped through hole (34) extending perpendicularly to the length direction of the bone hammer body (3) is provided inside the bone hammer body (3); both ends of the rotating rod (31) pass through the strip-shaped through hole (34), so that the rotating rod (31) can move along the length direction of the strip-shaped through hole (34); the bone hammer body (3) is arranged in the bracket (2); both ends of the rotating rod (31) pass through the bracket (2), so that the bone hammer body (3) can deflect in the bracket (2) with the rotating rod (31) as an axis.

3. A medical bone hammer according to claim 2, characterized in that: The locking member (21) comprises: A movable plate (211), the movable plate (211) being arranged on one side of the bracket (2), and the side of the movable plate (211) close to the bracket (2) being fixedly connected to one end of the rotating rod (31); a snap-fit ​​plate (212), the snap-fit ​​plate (212) being arranged on the other side of the bracket (2), the side of the snap-fit ​​plate (212) close to the bracket (2) being fixedly connected to the other end of the rotating rod (31), the side of the snap-fit ​​plate (212) close to the bracket (2) being fixedly connected to a snap-fit ​​rod (2121), the bone hammer body (3) being provided with a plurality of snap-fit ​​holes (35) capable of being mutually snap-fitted with the snap-fit ​​rod (2121), the plurality of snap-fit ​​holes (35) being distributed at intervals along the circumference of the strip-shaped through hole (34), the side of the snap-fit ​​plate (212) close to the bracket (2) being provided with a limiting groove (2122), the bracket (2) being provided with a limiting column (22), one end of the limiting column (22) being assembled on the other side of the bracket (2), the other end of the limiting column (22) extending into the limiting groove (2122) and being slidably connected to the limiting groove (2122); and A columnar spring (213), wherein the columnar spring (213) is arranged on one side of the movable plate (211) and sleeved on the rotating rod (31), and the two ends of the columnar spring (213) are respectively connected and fixed to the movable plate (211) and the bracket (2).

4. A medical bone hammer according to claim 1, characterized in that: The shock absorbing device (33) comprises: A guide rod (331), wherein the guide rod (331) is arranged in the cavity (32) along the length direction of the bone hammer body (3), and both ends of the guide rod (331) are respectively connected and fixed to the bone hammer body (3); A plurality of weight plates (332) are sleeved on the outside of the guide rod (331).

5. A medical bone hammer according to claim 4, characterized in that: The guide rod (331) is a rectangular rod, a rectangular through hole (3321) is opened in the middle of the counterweight plate (332), and the guide rod (331) passes through the rectangular through hole (3321), so that the plurality of counterweight plates (332) can move on the guide rod (331) along the length direction of the guide rod (331).

6. A medical bone hammer according to claim 5, characterized in that: The shock absorbing device (33) further comprises two groups of limiting structures (333), wherein the two groups of limiting structures (333) are respectively arranged on two opposite hole walls of the rectangular through hole (3321).

7. A medical bone hammer according to claim 6, characterized in that: The limiting structure (333) comprises: A rotating frame (3331), one end of which is fixedly mounted on the hole wall of the rectangular through hole (3321); A rotating roller (3332), wherein the rotating roller (3332) is rotatably mounted on the other end of the rotating frame (3331).

8. The medical bone hammer according to claim 1, characterized in that: The handle (1) comprises: A fixed round rod (11), one end of which is connected and fixed to the bracket (2); An extended round rod (12), wherein a connecting rope assembly (121) is provided at one end of the extended round rod (12); A connecting sleeve (13), the other end of the fixed round rod (11) and the other end of the extended round rod (12) are respectively screwed with two ends of the connecting sleeve (13).

9. A medical bone hammer according to claim 8, characterized in that: The connecting rope assembly (121) comprises: A hook spring (1211), one end of the extended round rod (12) is provided with a placement groove (122) extending along the length direction of the extended round rod (12), and one end of the hook spring (1211) is fixedly assembled on the inner wall of the placement groove (122) close to the fixed round rod (11); An elastic rope ring (1212), the elastic rope ring (1212) is connected and fixed to the other end of the hook spring (1211); A clamping strip (1213), wherein the clamping strip (1213) is arranged at the notch of the placement groove (122), and the elastic rope ring is sleeved on the outside of the clamping strip (1213).

10. A medical bone hammer according to any one of claims 1 to 9, characterized in that: The bone hammer body (3) comprises: A hammer body (36), wherein the cavity (32) is opened inside the hammer body (36), and both ends of the hammer body (36) are respectively provided with assembly grooves (361); Two hammer heads (37), the two hammer heads (37) are threadedly connected in the assembly groove (361).

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