Angle-controllable electric rongeur

Abstract

The application provides a controllable angle electric rongeur, which comprises a hand-held part, a movable part, an adjusting assembly, a clamping assembly, a universal connecting mechanism and a motor, a doctor holds a plug-in section of a locking piece in the adjusting assembly, pulls out the locking piece outward, releases the relative rotation locking of the hand-held part and the movable part, rotates the movable part according to the anatomical structure of a surgical site and the requirement of an operation field, and adjusts to a suitable angle, releases the plug-in section of the locking piece, and locks the angle, the doctor holds the hand-held part, aims the clamping jaw of the clamping assembly at bone tissue to be cut and trimmed, presses a switch button on a first shell, and completes the cutting and trimming operation of the bone tissue, the angle adjusting and locking operation of the device can be completed by only pulling and plugging the locking piece, the steps are simple and efficient, the clamping action is driven by the motor to replace manual operation, the doctor does not need to continuously exert a holding force, the hand fatigue of the doctor is effectively reduced, the operation burden in the operation process is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an electric bone-biting forceps with controllable angle. Background Technology

[0002] In orthopedic surgery, bone forceps are an indispensable core instrument, widely used in various orthopedic procedures such as fracture reduction, joint replacement, spinal surgery, and bone tumor resection. Their core function is to precisely cut and trim diseased, hyperplastic, or deformed bone tissue, laying the foundation for surgical field exposure, bone reduction and fixation, and postoperative functional recovery. With the continuous iteration of orthopedic medical technology, surgeries place increasingly higher demands on the precision, efficiency, safety, and ease of operation of instruments. Electric bone forceps have emerged as a crucial upgrade and replacement for traditional manual bone forceps.

[0003] For example, Chinese invention patent CN110477998B discloses an electric bone-biting forceps. Its key technical features include a front jaw, a rear jaw, an upper jaw bar, a lower jaw bar, and a forceps base. An electric device is mounted on the forceps base, and the electric device has a telescopic shaft for extending or retracting. The end of the telescopic shaft facing away from the electric device is connected to the rear end of the upper jaw bar. This invention has the following advantages: During surgery, medical personnel hold the forceps base, aligning the front jaw with the bone to be bitten. The electric device, connected to the upper jaw bar via the telescopic shaft, drives the upper jaw bar to move the rear jaw towards the front jaw and clamp, biting and removing the bone. By electrically controlling the forceps head, medical personnel do not need to exert force to clamp the jaws during surgery, avoiding hand tremors caused by exertion, thus preventing forceps head vibration and ensuring the smooth progress of the surgery.

[0004] Analysis of the inventions and existing technologies revealed that the current electric bone-biting forceps lack angle adjustment functionality, making them inconvenient. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes an electric bone-biting forceps with controllable angle, thereby solving the technical problem mentioned in the background art that existing electric bone-biting forceps lack angle adjustment function and are not convenient enough.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electric bone-crushing forceps with controllable angle, comprising: The hand-held part is rotatably connected to a movable part; An adjustment component is provided at the connection between the handheld part and the movable part. A toothed ring is arranged on the handheld part, and a T-shaped piece is installed on the movable part. The toothed ring and the T-shaped piece can be engaged with each other and can make the movable part stationary at any angle. The clamping assembly is arranged at the end of the movable part away from the handheld part; and The universal joint mechanism is fixedly connected at one end to the motor output shaft and at the other end to the clamping assembly to drive it to clamp or release.

[0007] Furthermore, the adjustment component also includes: A first pivot is fixedly disposed at the end of the movable part away from the clamping assembly, and can pass through the movable part, allowing the handheld part and the movable part to be hinged together; and A locking component, arranged on the first rotating shaft, is capable of locking or releasing the relative rotation of the handheld part and the movable part.

[0008] Furthermore, the first rotating shaft has a flat-bottomed countersunk hole along the axial direction and a sliding groove along the radial direction.

[0009] Furthermore, the T-shaped component is divided into a fixed section and an elastic section. The fixed section is fixedly connected to the first rotating shaft at the end away from the elastic section. The elastic section is provided with embedded balls at both ends, and the embedded balls can be inserted into the tooth gap of the gear ring.

[0010] Furthermore, the locking component includes: A locking element is slidably disposed in the flat-bottomed countersunk hole. The locking element is divided into a locking section and a plugging section. The locking section can reciprocate and move up and down to engage with the sliding groove. The locking section can extend into or disengage from the tooth gap of the gear ring as it moves up and down. The locking element is made of magnetic material. A magnet is fixedly installed at the bottom of the flat-bottomed countersunk hole; and An elastic element is fitted onto the magnet, with one end abutting against the bottom of the flat-bottomed recess and the other end abutting against the locking element.

[0011] Furthermore, a third housing is arranged on the gear ring, and the surface of the third housing is circumferentially marked with graduations. These graduations can mate with the insertion and extraction segments in the locking member to help the user determine the rotation angle of the movable part. Furthermore, the clamping assembly includes: There are two second rotating shafts, both fixedly arranged at the end of the movable part away from the handheld part; and There are two grippers, both of which can be rotatably sleeved on the second rotating shaft, and the grippers are divided into a gear section and a clamping section.

[0012] Furthermore, the universal joint mechanism includes: The first rotating wheel is rotatably arranged on the hand-held part, and one end of the first rotating wheel is fixedly connected to the output shaft of the motor, while the other end is provided with a plurality of circular holes in a circumferential manner; The second rotating wheel is rotatably arranged on the movable part, and one end of the second rotating wheel has a plurality of circular holes circumferentially opened, while the other end is provided with a thread, which meshes with the gear segment of the two grippers; and The system has multiple sets of double connecting rods, with one end of each rod inserted into a circular hole in the first rotating wheel and the other end inserted into a circular hole in the second rotating wheel.

[0013] Furthermore, a first housing and a second housing are respectively installed on the handheld part and the movable part.

[0014] Furthermore, a switch button is installed on the first housing, and the switch button is electrically connected to the motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By engaging the toothed ring and the T-shaped piece, the movable part can be adjusted at any angle relative to the handheld part and fixed at rest. With the help of the circumferential scale on the third shell, the doctor can quickly locate the appropriate clamping angle without additional traction of soft tissue to expose the surgical field. It is especially suitable for surgeries on hidden areas such as the spine and joints, greatly improving the adaptability of the instrument to different surgical sites and different anatomical structures, and reducing the difficulty of surgical operation.

[0016] 2. A locking component (locking element, magnet, elastic element) is set up. Through the locking element's engagement with the slide and toothed ring, the relative rotation between the handheld part and the moving part can be quickly locked, avoiding biting deviation caused by instrument angle shift during surgery, preventing accidental damage to surrounding blood vessels, nerves and soft tissues, and providing a stable platform for clamping operations, thus improving surgical accuracy.

[0017] 3. The device has stable power transmission and is not affected by angle: It adopts a universal connection mechanism composed of a first rotating wheel, a second rotating wheel and a double connecting rod, and is driven by a motor. No matter what angle the hand-held part and the moving part are adjusted to, the power transmission can be stably transmitted, ensuring that the clamping and releasing action of the gripper is smooth and reliable, avoiding interruption or jamming of power transmission due to angle changes, and improving surgical efficiency. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 A three-dimensional structural diagram of an electric bone-biting forceps with controllable angle provided by the present invention; Figure 2 An exploded view of an electric bone-biting forceps with a controllable angle, provided by the present invention; Figure 3An enlarged view of the adjustment component in a controllable-angle electric bone-biting forceps provided by the present invention; Figure 4 An exploded view of the adjustment component in a controllable-angle electric bone-biting forceps provided by the present invention; Figure 5 An exploded view of the universal joint mechanism in a controllable-angle electric bone-biting forceps provided by the present invention; Figure 6 An enlarged view of the clamping component in an electric bone-biting forceps with controllable angle provided by the present invention.

[0020] Figure label: 101. Handheld part; 102. Movable part; 103. Motor; 201. Gear ring; 202. T-shaped part; 203. Fixed section; 204. Elastic section; 205. Embedded ball; 206. First rotating shaft; 207. Flat-bottomed countersunk hole; 208. Slide groove; 209. Locking part; 210. Locking section; 211. Insertion / removal section; 301. Magnet; 302. Elastic element; 303. First housing; 304. Second housing; 305. Third housing; 306. Scale; 401. Second rotating shaft; 402. Gripper; 403. Gear section; 404. Clamping section; 405. First rotating wheel; 406. Second rotating wheel; 407. Circular hole; 408. Thread; 409. Double connecting rod; 410. Switch button; 501. Flexible corrugated sheet. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0022] Example: like Figures 1 to 3 As shown, the present invention provides an electric bone-crushing forceps with controllable angle, including a hand-held part 101, a movable part 102 rotatably connected to the hand-held part 101, and an adjustment component arranged at the rotatable connection between the hand-held part 101 and the movable part 102. The adjustment component includes a toothed ring 201 fixedly installed on the hand-held part 101 and a T-shaped member 202 fixedly installed on the movable part 102. By relying on the interlocking between the toothed ring 201 and the T-shaped member 202, the movable part 102 can be stationary at any angle. A clamping component is provided at the end of the movable part 102 away from the hand-held part 101. The clamping component is connected to a motor 103 through a universal joint mechanism, so that the motor 103 rotates to drive the clamping component to clamp or release.

[0023] The first housing 303 and the second housing 304 are respectively installed on the hand-held part 101 and the movable part 102. Additional explanation: During the rotation of the hand-held part 101 and the movable part 102, the flexible corrugated sheet 501 at the connection between the first housing 303 and the second housing 304 deforms synchronously, always sealing the connection between the two housings, avoiding exposure of internal parts, and preventing blood and tissue fluid from contaminating the internal components during the operation.

[0024] like Figure 3 , 4 The adjustment assembly shown includes a first rotating shaft 206, a flat-bottomed countersunk hole 207, and a sliding groove 208. The locking assembly includes a locking element 209, a magnet 301, and an elastic element 302. The first rotating shaft 206 is fixedly mounted on the end of the movable part 102 away from the clamping assembly. The first rotating shaft 206 can pass through the movable part 102 and can hinge the handle part 101 and the movable part 102 together. The locking assembly is arranged on the first rotating shaft 206, which can lock or release the relative rotation of the handle part 101 and the movable part 102. The end face of the first rotating shaft 206 has a flat-bottomed countersunk hole 207 along the axial direction and a sliding groove 208 along the radial direction. T-shaped element 2 02 is divided into a fixed section 203 and an elastic section 204. The fixed section 203 is fixedly connected to the first rotating shaft 206 at the end away from the elastic section 204. The elastic section 204 is provided with embedded balls 205 at both ends, and the embedded balls 205 can be inserted into the tooth gap of the tooth ring 201. When the tooth ring 201 is rotated, the embedded balls 205 will be squeezed out of the tooth gap of the tooth ring 201 by the pressure force, and will quickly slide into the next tooth gap under the rebound force of the elastic section 204. In this way, when the force of rotating the tooth ring 201 does not exceed the rebound force of the elastic section 204, the embedded balls 205 can ensure the stationary state of the moving part 102, which makes it convenient for the doctor to choose the most suitable angle for surgery.

[0025] A locking element 209 is slidably disposed within the flat-bottomed countersunk hole 207. The locking element 209 is divided into a locking section 210 and a insertion / removal section 211. The locking section 210 can reciprocate and engage with the slide groove 208. The locking section 210 can extend into or disengage from the toothed ring 201 as the locking element 209 moves up and down. When the locking section 210 engages with the toothed ring, it can lock the relative rotation between the handpiece 101 and the movable part 102, providing a stable motion platform for subsequent operation of the electric bone-crushing forceps. Conversely, the handpiece 101 and the movable part 102 can rotate relative to each other. The bottom of the flat-bottomed countersunk hole 207 is fixedly connected. There is a cylindrical magnet 301, and an elastic element 302 is sleeved on the magnet 301. One end of the elastic element 302 abuts against the bottom of the flat-bottomed recess 207, and the other end abuts against the locking element 209. When the locking element 209 is close to the magnet 301, it will be attracted by the magnet 301. When the locking element 209 is a certain distance away from the magnet 301, the spring can support the locking element 209 so that it will not be attracted back by the magnet 301. In this way, the doctor can pinch the insertion and removal section 211 of the locking element 209 and lock or release the relative rotation of the hand part 101 and the movable part 102 through the insertion and removal movement.

[0026] The toothed ring 201 is also equipped with a third housing 305. The surface of the third housing 305 is circumferentially marked with a scale 306. The third housing not only protects the internal parts of the adjustment component, but also, through the cooperation of the scale 306 and the insertion / removal section 211, realizes the angle indication function, helping doctors to quickly locate a suitable clamping angle, saving instrument adjustment time and improving surgical efficiency.

[0027] like Figure 5 , 6 As shown, the clamping assembly includes a second rotating shaft 401 and a gripper 402. The universal joint mechanism includes a first rotating wheel 405, a second rotating wheel 406, and a double connecting rod 409. Two second rotating shafts 401 are fixedly arranged at the end of the movable part 102 away from the handheld part 101. The gripper 402 is sleeved on the second rotating shaft 401. The gripper 402 is composed of a gear section 403 and a clamping section 404. The first rotating wheel 405 is rotatably mounted on the handheld part 101. One end of the first rotating wheel 405 is fixedly connected to the output shaft of the motor 103, and the other end has multiple circular holes 407 circumferentially opened. The second rotating wheel 406 is rotatably mounted on the movable part 102. One end of the second rotating wheel 406 is circumferentially... The first wheel has multiple round holes 407 and a thread 408 at the other end. The thread 408 meshes with the gear segment 403 in the two grippers 402. Multiple sets of double connecting rods 409 are provided. One end of the double connecting rod 409 is inserted into the round hole 407 in the first rotating wheel 405, and the other end is inserted into the round hole 407 in the second rotating wheel 406. In this way, no matter what angle the hand-held part 101 and the movable part 102 are at, the first rotating wheel 405 can transmit the rotation to the second rotating wheel 406 through the double connecting rod 409. The second rotating wheel 406 can then drive the gear segment 403 to rotate through the thread 408, thereby enabling the grippers 402 to complete the clamping or releasing action.

[0028] A switch button 410 is installed on the first housing 303. The switch button 410 is electrically connected to the motor 103. By controlling the forward and reverse rotation of the motor 103, the gripper 402 is closed or opened. The angle adjustment and locking operation of this device can be completed simply by inserting and removing the locking member 209. The steps are simple and efficient. The clamping action is driven by the motor 103 to replace manual operation. There is no need for the doctor to continuously apply gripping force, which effectively reduces the doctor's hand fatigue, reduces the operational burden during the operation, and saves instrument adjustment time, further improving the efficiency of the operation.

[0029] Specific usage and beneficial effects of the present invention: The doctor pinches the insertion / removal section 211 of the locking member 209 in the adjustment assembly and pulls the locking member 209 outward, away from the magnet 301 at the bottom of the flat-bottomed countersunk hole 207. At this time, the locking section 210 of the locking member 209 disengages from the groove 208 of the first rotating shaft 206 and the tooth gap of the gear ring 201, releasing the relative rotational lock between the handheld part 101 and the movable part 102. Then, according to the anatomical structure of the surgical site and the needs of the surgical field, the movable part 102 is rotated. The movable part 102 drives the first rotating shaft 206 and the T-shaped member 202 to rotate synchronously. The embedded balls 205 at both ends of the elastic section 204 of the T-shaped member 202 are squeezed out in the tooth gap of the gear ring 201 and slide into the next tooth gap under the action of the elastic force of the elastic section 204 until the appropriate angle is adjusted. During the adjustment process, the angle can be quickly located through the circumferential scale 306 on the surface of the third housing 305, reducing the adjustment time.

[0030] After the angle adjustment is completed, the insertion and removal section 211 of the locking member 209 is released. Under the action of its own elastic force, the elastic member 302 pushes the locking member 209 close to the magnet 301 until the locking member 209 is attracted and fixed by the magnet 301. At this time, the locking section 210 of the locking member 209 is re-engaged into the groove 208 of the first rotating shaft 206 and the tooth gap of the toothed ring 201, realizing the locking of the relative rotation between the handheld part 101 and the movable part 102, providing a stable motion platform for subsequent clamping operations and avoiding angle deviation during the operation.

[0031] After the angle is locked, the doctor holds the handpiece 101 and aligns the gripper 402 of the clamping assembly with the bone tissue to be cut and trimmed; presses the switch button 410 on the first housing 303, the switch button 410 controls the motor 103 to rotate forward and reverse, and the output shaft of the motor 103 drives the first rotating wheel 405 to rotate; since the first rotating wheel 405 and the second rotating wheel 406 are connected by multiple sets of double connecting rods 409, and the two ends of the double connecting rods 409 are respectively inserted into the round holes 407 of the two rotating wheels, no matter what angle the handpiece 101 and the movable part 102 are at, the rotation of the first rotating wheel 405 can be stably transmitted to the second rotating wheel 406 through the double connecting rods 409; the second rotating wheel 406 meshes with the gear segment 403 of the gripper 402 through its own thread 408, driving the two grippers 402 to rotate synchronously, realizing the clamping or releasing of the grippers 402, and completing the surgical operation such as cutting and trimming of bone tissue.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to the present invention, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A controllable-angle electric bone-crushing forceps, characterized in that, Including: The hand-held part (101) is rotatably connected to the movable part (102); An adjustment component is provided at the connection between the handheld part (101) and the movable part (102). A toothed ring (201) is arranged on the handheld part (101), and a T-shaped piece (202) is installed on the movable part (102). The toothed ring (201) and the T-shaped piece (202) can be engaged with each other, and the movable part (102) can be stationary at any angle. A clamping assembly is disposed at the end of the movable part (102) away from the handheld part (101); and The universal joint mechanism is fixedly connected at one end to the output shaft of the motor (103) and at the other end to the clamping assembly to drive it to clamp or release.

2. The electrically operated bone-biting forceps with controllable angle according to claim 1, characterized in that, The adjustment component further includes: A first pivot (206) is fixedly disposed at the end of the movable part (102) away from the clamping assembly, and can pass through the movable part (102), enabling the handheld part (101) and the movable part (102) to be hinged together; and A locking component, arranged on the first rotating shaft (206), is capable of locking or releasing the relative rotation of the handheld part (101) and the movable part (102).

3. The electrically operated bone-biting forceps with controllable angle according to claim 2, characterized in that, The first rotating shaft (206) has a flat-bottomed countersunk hole (207) in the axial direction and a sliding groove (208) in the radial direction.

4. The electrically operated bone-biting forceps with controllable angle according to claim 2, characterized in that: The T-shaped component (202) is divided into a fixed section (203) and an elastic section (204). The fixed section (203) is fixedly connected to the first rotating shaft (206) at one end away from the elastic section (204). The elastic section (204) is provided with embedded balls (205) at both ends, and the embedded balls (205) can be inserted into the tooth gap of the gear ring (201).

5. The electrically operated bone-biting forceps with controllable angle according to claim 3, characterized in that, The locking component includes: The locking member (209) is slidably disposed in the flat-bottomed countersunk hole (207). The locking member (209) is divided into a locking section (210) and a plug-in section (211). The locking section (210) can reciprocate and move up and down to engage in the slide groove (208). The locking section (210) can extend into or disengage from the tooth gap of the gear ring (201) with the up and down movement. The locking member (209) is made of magnetic material. Magnet (301) is fixedly disposed at the bottom of the flat-bottomed countersunk hole (207); and The elastic element (302) is sleeved on the magnet (301), with one end abutting against the bottom of the flat-bottomed recess (207) and the other end abutting against the locking element (209).

6. The electrically operated bone-biting forceps with controllable angle according to claim 5, characterized in that, A third housing (305) is arranged on the gear ring (201), and a scale (306) is circumferentially opened on the surface of the third housing (305). The scale (306) can cooperate with the plug-in section (211) in the locking member (209) to help the user determine the rotation angle of the movable part (102).

7. The electrically operated bone-biting forceps with controllable angle according to claim 1, characterized in that, The clamping assembly includes: Two second rotating shafts (401) are provided, both fixedly arranged at the end of the movable part (102) away from the handheld part (101); and There are two grippers (402), both of which can be rotatably sleeved on the second rotating shaft (401), and the grippers (402) are divided into a gear section (403) and a clamping section (404).

8. The electrically operated bone-biting forceps with controllable angle according to claim 7, characterized in that, The universal joint mechanism includes: The first rotating wheel (405) is rotatably arranged on the hand-held part (101), and one end of the first rotating wheel (405) is fixedly connected to the output shaft of the motor (103), and the other end is provided with a plurality of round holes (407) in a circumferential direction. The second rotating wheel (406) is rotatably arranged on the movable part (102), and one end of the second rotating wheel (406) is provided with a plurality of circular holes (407) circumferentially, and the other end is provided with a thread (408), and the thread (408) meshes with the gear segment (403) in the two grippers (402); and The double connecting rod (409) is provided in multiple sets. One end of the double connecting rod (409) is inserted into the round hole (407) in the first rotating wheel (405), and the other end is inserted into the round hole (407) in the second rotating wheel (406).

9. The electrically operated bone-biting forceps with controllable angle according to claim 1, characterized in that, The handheld part (101) and the movable part (102) are respectively equipped with a first housing (303) and a second housing (304).

10. The electrically operated bone-biting forceps with controllable angle according to claim 9, characterized in that, A switch button (410) is installed on the first housing (303), and the switch button (410) is electrically connected to the motor (103).

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