Compensation device for taking out steel plate screws

Abstract

The invention relates to the technical field of medical instruments, and discloses a compensation device for taking out steel plate screws, which comprises a clamping assembly, a clamping piece, two sliding blocks, a moving block and a fixed plate, the moving block is arranged on the inner wall of the sliding block in a sliding manner, the fixed plate sleeves the outer side of the sliding block, and the two sliding blocks are arranged on the inner wall of the fixed plate in a sliding manner; the driving assembly is arranged at one end of the fixing plate and comprises a driving piece, the driving piece comprises a supporting block, a pulling rod and a hinge rod, the pulling rod is fixed to one end of the supporting block, and the hinge rod is hinged to one end of the pulling rod. The needle body taking-out device has the advantages that when a needle body is taken out, one hand can complete the needle body taking-out, the other hand can assist other work at any time during single-hand operation, a doctor can vacate one hand to communicate with an assistant to transmit instruments or cooperate with operation of other medical equipment, the cooperation efficiency of a whole operation team is improved, and it is guaranteed that an operation is conducted smoothly.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a compensation device for removing steel plates and screws. Background Art

[0002] Traditional removal structures mainly rely on the threads connecting the head of the main nail. After tightening the removal connecting rod, by hitting the fixed block with a sliding hammer, the interface between the main nail and the bone is gradually loosened, and then the main nail is gradually hammered out to safely and effectively remove the intramedullary nail from the bone, enabling the patient to recover better and reducing potential risks and discomforts that the internal fixation device may bring in the body, such as problems like infection and bone loss caused by stress shielding. During the actual operation process, the operator needs to firmly hold the pliers with one hand to precisely clamp the target component to ensure its firm fixation without displacement or detachment during the operation, and with the other hand, the operator needs to vigorously swing the sliding hammer and strike the corresponding part according to a certain rhythm and strength. The two-handed operation makes it difficult for the operator to effectively interact with assistants or other medical staff during the operation, affecting the information transmission and cooperation efficiency. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned existing compensation device for removing steel plates and screws, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that the needle body needs to be removed by two-handed operation.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A compensation device for removing steel plates and screws, which includes a clamping assembly, including a clamping member, including a sliding block, a moving block, and a fixing plate. The moving block is arranged to slide inside the sliding block, the fixing plate is sleeved outside the sliding block, and the number of sliding blocks is two, both of which are arranged to slide inside the fixing plate wall;

[0006] A driving assembly, arranged at one end of the fixing plate, includes a driving member, including a support block, a pulling rod, and a hinged rod. The pulling rod is fixed to one end of the support block, and the hinged rod is hinged to one end of the pulling rod.

[0007] As a preferred scheme of the compensation device for removing steel plates and screws of the present invention, wherein: a support plate is arranged at one end of the moving block, two first springs are fixedly arranged at one end of the moving block, and the other ends of the first springs are fixed to the inner wall of the fixing plate.

[0008] As a preferred scheme of the compensation device for removing steel plates and screws of the present invention, wherein: a limiting rod is hinged inside the support plate, a plurality of limiting grooves are formed inside the limiting rod, and limiting blocks are arranged inside the limiting grooves.

[0009] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: A support frame is sleeved outside the limit block, a push rod is provided at one end of the limit block, and a fixing frame is sleeved outside the push rod.

[0010] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: A second spring is sleeved outside the push rod, one end of the second spring is fixed to one end of the limit block, and the other end is fixed to one end of the fixing frame. An articulated block is provided at one end of the push rod, and a connecting rod is articulated inside the articulated block.

[0011] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: A first handle is provided at one end of the connecting rod, a rotating rod is inserted inside the first handle, a second handle is sleeved outside the rotating rod, a torsion spring is sleeved outside the rotating rod, one end of the torsion spring is fixed to one end of the first handle, and the other end is fixed to one end of the second handle. The other end of the second handle is fixed to one end of the fixing plate.

[0012] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: The other end of the articulated rod is articulated with a rotating column, a DC motor shaft is inserted inside the rotating column, and a DC motor is provided at one end of the DC motor shaft.

[0013] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: A connecting plate is sleeved outside the DC motor shaft, and the other end of the connecting plate is fixed to one end of the fixing plate.

[0014] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is provided: A positioning frame is sleeved outside the pulling rod, and the other end of the positioning frame is fixed to one end of the connecting plate.

[0015] As a preferred embodiment of the compensation device for removing steel plate screws according to the present invention, the following is further provided: A main body assembly includes a clamping forceps, a needle body, a punching and extracting device, and a sliding hammer. The needle body is disposed inside the clamping forceps. The number of the clamping forceps is two, and both are disposed at one end of the sliding block. The punching and extracting device is disposed at one end of the fixing plate. The sliding hammer is sleeved outside the punching and extracting device and slides, and a support block is provided at the other end of the sliding hammer.

[0016] The beneficial effects of the present invention are as follows: When removing the needle body, it can be completed with one hand. When operating with one hand, the other hand can assist other tasks at any time. The doctor can free one hand to communicate with the assistant to transfer instruments, or cooperate with the operation of other medical devices, improving the cooperation efficiency of the entire surgical team and ensuring the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings. Among them:

[0018] Figure 1 It is the overall view of the compensation device for removing steel plate screws.

[0019] Figure 2 It is the structure diagram of the sliding hammer of the compensation device for removing steel plate screws.

[0020] Figure 3 It is the structure diagram of the limiting rod of the compensation device for removing steel plate screws.

[0021] Figure 4 It is for the compensation device for removing steel plate screws Figure 3 The partial enlarged structure diagram at position A.

[0022] Figure 5 It is the structure diagram of the torsion spring of the compensation device for removing steel plate screws.

[0023] Figure 6 It is the structure diagram of the articulated rod of the compensation device for removing steel plate screws. Detailed implementation manners

[0024] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification.

[0025] In the following description, many specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1-6, which is the first embodiment of the present invention. This embodiment provides a compensation device for removing steel plate screws. The compensation device for removing steel plate screws includes a main body assembly 100, a clamping assembly 200, and a driving assembly 300. The three cooperate to remove the needle body with a single - hand operation.

[0029] The clamping assembly 200 includes a clamping member 201, which includes a sliding block 201a, a moving block 201b, and a fixing plate 201c. The moving block 201b is arranged to slide inside the sliding block 201a, the fixing plate 201c is sleeved outside the sliding block 201a, and the number of sliding blocks 201a is two, both of which are arranged to slide inside the fixing plate 201c.

[0030] A clamping pliers 101 is arranged at one end of each of the sliding blocks 201a.

[0031] When it is necessary to clamp the needle body 102 and remove it, by moving the moving block 201b, the moving block 201b moves to squeeze the two sliding blocks 201a on both sides to make them move. The sliding blocks 201a move and slide on the inner wall of the fixing plate 201c. By the movement of the two sliding blocks 201a, the clamping pliers 101 can be driven to move, and the needle body 102 can be clamped by the movement of the clamping pliers 101.

[0032] The driving assembly 300 is arranged at one end of the fixing plate 201c and includes a driving member 301, which includes a support block 301a, a pulling rod 301b, and a hinged rod 301c. The pulling rod 301b is fixed at one end of the support block 301a, and the hinged rod 301c is hinged at one end of the pulling rod 301b.

[0033] After clamping the needle body 102 and when it is necessary to remove it with a slide hammer 104, by rotating the hinged rod 301c, the hinged rod 301c rotates to drive the pulling rod 301b to move, the pulling rod 301b moves to drive the support block 301a to move, the support block 301a moves to drive the slide hammer 104 to slide on the extractor 103. By the reciprocating movement of the slide hammer 104 to reciprocally hammer one end of the extractor 103, an instantaneous impact force will be generated. By continuously hammering the extractor 103, the needle body 102 is gradually loosened by the impact force of the extractor 103, so that the needle body 102 can be removed.

[0034] Embodiment 2

[0035] Refer to Figures 1-6 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment.

[0036] Specifically, a support plate 202a is arranged at one end of the moving block 201b, and two first springs 202b are fixedly arranged at one end of the moving block 201b. The other ends of the first springs 202b are fixed to the inner wall of the fixing plate 201c.

[0037] When it is necessary to clamp the needle body 102, by moving the support plate 202a, the movement of the support plate 202a drives the sliding block 201a to slide on the inner wall of the moving block 201b, and the movement of the sliding block 201a will slide on the inner wall of the fixing plate 201c. Through the movement of the two sliding blocks 201a, the clamping pliers 101 can be driven to move, and the needle body 102 can be clamped by the movement of the clamping pliers 101. When the sliding block 201a moves, the first spring 202b will be compressed. When it is necessary to release the needle body 102, by moving the support plate 202a, at this time, by the elastic force of the first spring 202b rebounding, the sliding block 201a will be driven to return to its original position. The movement of the sliding block 201a drives the two moving blocks 201b to move, and the movement of the moving block 201b will drive the clamping pliers 101 to return to its original position.

[0038] Specifically, a limiting rod 202c is hinged on the inner wall of the support plate 202a. A plurality of limiting grooves 202c-1 are opened on the inner wall of the limiting rod 202c, and a limiting block 202d is arranged on the inner wall of the limiting groove 202c-1.

[0039] When it is necessary to clamp the needle body 102, by pulling the limiting rod 202c, the movement of the limiting rod 202c drives the movement of the limiting groove 202c-1. When the limiting groove 202c-1 moves, one end will squeeze the limiting block 202d, so that the limiting block 202d is separated from the limiting groove 202c-1. The movement of the limiting rod 202c drives the support plate 202a to move, and the movement of the support plate 202a drives the sliding block 201a to slide on the inner wall of the moving block 201b. The movement of the sliding block 201a will slide on the inner wall of the fixing plate 201c. Through the movement of the two sliding blocks 201a, the clamping pliers 101 can be driven to move to clamp the needle body 102. After the limiting rod 202c moves to the required position, the limiting block 202d will be engaged with the next limiting groove 202c-1, so as to limit the clamping pliers 101.

[0040] Specifically, a support frame 202e is sleeved outside the limiting block 202d. One end of the limiting block 202d is provided with a push rod 202f, and a fixing frame 202g is sleeved outside the push rod 202f.

[0041] The support frame 202e is used to support the limiting block 202d. The limiting block 202d is movably connected with the support frame 202e. The fixing frame 202g is used to support the push rod 202f. When it is necessary to clamp the needle body 102 and take it out, by pulling the limiting rod 202c, the movement of the limiting rod 202c drives the movement of the limiting groove 202c-1. When the limiting groove 202c-1 moves, one end will squeeze the limiting block 202d, so that the limiting block 202d is separated from the limiting groove 202c-1. The movement of the limiting block 202d will drive the push rod 202f to move.

[0042] Specifically, a second spring 202h is sleeved outside the push rod 202f. One end of the second spring 202h is fixed to one end of the limit block 202d, and the other end is fixed to one end of the fixed frame 202g. One end of the push rod 202f is provided with a hinge block 202i, and a connecting rod 202j is hinged to the inner wall of the hinge block 202i.

[0043] When it is necessary to clamp the needle body 102, by pulling the limit rod 202c, the movement of the limit rod 202c drives the movement of the limit groove 202c-1. When the limit groove 202c-1 moves, one end will squeeze the limit block 202d. The movement of the limit block 202d drives the movement of the push rod 202f. The movement of the push rod 202f drives the hinge block 202i, and the movement of the hinge block 202i drives the movement of the connecting rod 202j. The movement of the push rod 202f squeezes the second spring 202h. When the limit rod 202c moves to the required position and the clamping pliers 101 clamp the needle body 102, at this time, the elastic force of the second spring 202h rebounds to drive the limit block 202d to re-engage with the next limit groove 202c-1, thus completing the clamping of the needle body 102.

[0044] Specifically, one end of the connecting rod 202j is provided with a first handle 202k. A rotating rod 202l is inserted into the inner wall of the first handle 202k. A second handle 202m is sleeved outside the rotating rod 202l. A torsion spring 202n is sleeved outside the rotating rod 202l. One end of the torsion spring 202n is fixed to one end of the first handle 202k, and the other end is fixed to one end of the second handle 202m. The other end of the second handle 202m is fixed to one end of the fixed plate 201c.

[0045] Electrode plates are arranged on both the first handle 202k and the second handle 202m, and the rotating rod 202l is used to support the first handle 202k.

[0046] When holding the second handle 202m, by squeezing the first handle 202k, the first handle 202k moves to apply pressure to the torsion spring 202n. At this time, the electrode plate on the first handle 202k will fit with the electrode plate on the second handle 202m. The fitting of the electrode plates means the closing of the circuit, providing a path for the flow of current, changing the originally open - circuit state of the circuit into a closed - circuit state, and then the DC motor 302c will be started. When the second handle 202m is released, at this time, the force of the torsion spring 202n rebounding will drive the two electrode plates to separate. At this time, the DC motor 302c will stop moving. By continuously holding the first handle 202k and the second handle 202m, the movement of the first handle 202k will drive the connecting rod 202j to move. The movement of the connecting rod 202j squeezes the hinge block 202i, the hinge block 202i squeezes the push rod 202f, and the push rod 202f squeezes the limit block 202d, so that the limit block 202d tightly engages with the limit groove 202c - 1, thus completing the clamping of the needle body 102 for pulling out the needle body 102.

[0047] Embodiment 3

[0048] Referring to Figures 5-6 , this is the third embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0049] Specifically, the other end of the hinge rod 301c is hinged with a rotating column 302a. The inner wall of the rotating column 302a is inserted with a motor shaft 302b, and a DC motor 302c is arranged at one end of the motor shaft 302b.

[0050] When it is necessary to take out the needle body 102 after the clamping of the needle body 102 is completed, by starting the DC motor 302c, the power of the DC motor 302c will drive the motor shaft 302b to rotate. The rotation of the motor shaft 302b drives the rotating column 302a to rotate, the rotation of the rotating column 302a drives the hinge rod 301c to rotate, and by the rotation of the hinge rod 301c, the pulling rod 301b is driven to move. The movement of the pulling rod 301b drives the support block 301a to move, and the movement of the support block 301a drives the sliding hammer 104 to slide on the extractor 103, so that the sliding hammer 104 reciprocally hammers one end of the extractor 103.

[0051] Specifically, a connecting plate 302d is sleeved outside the motor shaft 302b, and the other end of the connecting plate 302d is fixed to one end of the fixing plate 201c.

[0052] The connecting plate 302d is used to support the motor shaft 302b.

[0053] Specifically, a positioning frame 302e is sleeved outside the pulling rod 301b, and the other end of the positioning frame 302e is fixed to one end of the connecting plate 302d.

[0054] The positioning frame 302e is used to support the pulling rod 301b. By rotating the hinge rod 301c, the pulling rod 301b can be driven to slide inside the inner wall of the positioning frame 302e.

[0055] Specifically, it further includes a main body assembly 100, which includes a clamping forceps 101, a needle body 102, a punching and pulling device 103, and a sliding hammer 104. The needle body 102 is arranged on the inner wall of the clamping forceps 101. The number of the clamping forceps 101 is two, and both are arranged at one end of the sliding block 201a. The punching and pulling device 103 is arranged at one end of the fixing plate 201c. The sliding hammer 104 is sleeved on the outer side of the punching and pulling device 103 and slides. A support block 301a is arranged at the other end of the sliding hammer 104.

[0056] The needle body 102 is an intramedullary needle. By accurately placing the clamping forceps 101 at a specific part of the needle body 102 and clamping it, a stable and reliable grasping force can be provided for clamping the needle body 102. When a long bone fracture occurs, the needle body 102 can be inserted into the marrow cavity to play a role in supporting and fixing the fracture ends from the inside. The punching and pulling device 103 is used to transmit the pulling-out force. The main function of the sliding hammer 104 is to generate an impact force to assist in removing the needle body 102. By sliding the sliding hammer 104 on the outer side of the punching and pulling device 103, an impact force is continuously applied to one end of the punching and pulling device 103 to remove the needle body 102.

[0057] When in use, when it is necessary to clamp the needle body 102, by pulling the limit rod 202c, the movement of the limit rod 202c drives the movement of the limit groove 202c-1. When the limit groove 202c-1 moves, one end will squeeze the limit block 202d, causing the limit block 202d to separate from the limit groove 202c-1. The movement of the limit block 202d drives the movement of the push rod 202f. The movement of the push rod 202f drives the hinge block 202i, and the movement of the hinge block 202i drives the movement of the connecting rod 202j. The movement of the push rod 202f squeezes the second spring 202h. The movement of the limit rod 202c drives the movement of the support plate 202a. The movement of the support plate 202a drives the sliding block 201a to slide inside the inner wall of the moving block 201b. The movement of the sliding block 201a slides on the inner wall of the fixing plate 201c. The movement of the two sliding blocks 201a can drive the clamping forceps 101 to move to clamp the needle body 102. When the limit rod 202c moves to the required position, through the elastic force of the second spring 202h rebounding, the limit block 202d is driven to engage with the next limit groove 202c-1, thus completing the clamping of the needle body 102.

[0058] When the needle body 102 needs to be pulled out after fixation, by squeezing the first handle 202k, the first handle 202k moves to apply pressure to the torsion spring 202n. At this time, the electrode plate on the first handle 202k will fit with the electrode plate on the second handle 202m, and then the DC motor 302c will be started. By continuously holding the first handle 202k and the second handle 202m, the limit block 202d will be tightly engaged with the limit groove 202c-1. After the DC motor 302c is started, the power of the DC motor 302c drives the motor shaft 302b to rotate. The rotation of the motor shaft 302b drives the rotating column 302a to rotate. The rotation of the rotating column 302a drives the articulated rod 301c to rotate. By the rotation of the articulated rod 301c, the pulling rod 301b is driven to move on the inner wall of the positioning frame 302e. The movement of the pulling rod 301b drives the support block 301a to move. The movement of the support block 301a drives the sliding hammer 104 to slide on the extractor 103. The sliding hammer 104 continuously hammers one end of the extractor 103. Through the impact generated by the sliding hammer 104 hammering the extractor 103, the needle body 102 can be gradually loosened, and thus the needle body 102 can be taken out.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A compensation device for removing steel plate screws, characterized in that: including, a clamping assembly (200), including a clamping member (201), which includes a sliding block (201a), a moving block (201b), and a fixing plate (201c). The moving block (201b) is arranged to slide on the inner wall of the sliding block (201a), the fixing plate (201c) is sleeved on the outer side of the sliding block (201a), and the number of the sliding blocks (201a) is two, both of which are arranged to slide on the inner wall of the fixing plate (201c); a driving assembly (300), arranged at one end of the fixing plate (201c), including a driving member (301), which includes a support block (301a), a pulling rod (301b), and a hinged rod (301c). The pulling rod (301b) is fixed to one end of the support block (301a), and the hinged rod (301c) is hinged to one end of the pulling rod (301b).

2. The compensation device for removing steel plate screws according to claim 1, wherein: One end of the moving block (201b) is provided with a support plate (202a), and two first springs (202b) are fixedly arranged at one end of the moving block (201b), and the other ends of the first springs (202b) are fixed to the inner wall of the fixing plate (201c).

3. The compensation device for removing steel plate screws according to claim 2, wherein: A limiting rod (202c) is hinged to the inner wall of the support plate (202a), a plurality of limiting grooves (202c-1) are formed in the inner wall of the limiting rod (202c), and a limiting block (202d) is arranged on the inner wall of the limiting groove (202c-1).

4. The compensation device for removing steel plate screws according to claim 3, characterized in that: A support frame (202e) is sleeved on the outer side of the limiting block (202d), a pushing rod (202f) is arranged at one end of the limiting block (202d), and a fixing frame (202g) is sleeved on the outer side of the pushing rod (202f).

5. The compensation device for removing steel plate screws according to claim 4, wherein: A second spring (202h) is sleeved on the outer side of the pushing rod (202f), one end of the second spring (202h) is fixed to one end of the limiting block (202d), and the other end is fixed to one end of the fixing frame (202g). One end of the pushing rod (202f) is provided with a hinged block (202i), and a connecting rod (202j) is hinged to the inner wall of the hinged block (202i).

6. The compensation device for removing steel plate screws according to claim 5, characterized in that: One end of the connecting rod (202j) is provided with a first handle (202k), a rotating rod (202l) is inserted into the inner wall of the first handle (202k), a second handle (202m) is sleeved on the outer side of the rotating rod (202l), a torsion spring (202n) is sleeved on the outer side of the rotating rod (202l), one end of the torsion spring (202n) is fixed to one end of the first handle (202k), and the other end is fixed to one end of the second handle (202m). The other end of the second handle (202m) is fixed to one end of the fixing plate (201c).

7. The compensation device for removing steel plate screws according to claim 6, characterized in that: The other end of the hinged rod (301c) is hinged to a rotating column (302a), a motor shaft (302b) is inserted into the inner wall of the rotating column (302a), and a DC motor (302c) is arranged at one end of the motor shaft (302b).

8. The compensation device for removing steel plate screws according to claim 7, wherein: A connecting plate (302d) is sleeved on the outer side of the motor shaft (302b), and the other end of the connecting plate (302d) is fixed to one end of the fixing plate (201c).

9. The compensation device for removing steel plate screws according to claim 8, characterized in that: A positioning frame (302e) is sleeved outside the pulling rod (301b), and the other end of the positioning frame (302e) is fixed to one end of the connecting plate (302d).

10. The compensation device for removing steel plate screws according to claim 9, characterized in that: It further includes a main body assembly (100), which includes clamping pliers (101), a needle body (102), a punching and pulling device (103), and a sliding hammer (104). The needle body (102) is arranged on the inner wall of the clamping pliers (101). The number of the clamping pliers (101) is two, and both are arranged at one end of the sliding block (201a). The punching and pulling device (103) is arranged at one end of the fixing plate (201c). The sliding hammer (104) is sleeved outside the punching and pulling device (103) and slides. A support block (301a) is arranged at the other end of the sliding hammer (104).

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