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CN-122005042-A - Fracture reduction auxiliary device

CN122005042ACN 122005042 ACN122005042 ACN 122005042ACN-122005042-A

Abstract

The application discloses a fracture reduction auxiliary device which comprises a propeller, a locker and a locking mechanism, wherein the propeller comprises a first shell, a clamping piece, a pushing piece and a trigger, the clamping piece is arranged on the first shell and is provided with a first clamping hole, the pushing piece is movably arranged on the first shell and is provided with a through hole which is coaxial with the first clamping hole and is oppositely arranged, the pushing piece can move along the axial direction of the through hole, the trigger is rotatably arranged on the shell, the trigger is provided with a first position and a second position, the trigger at the first position can rotate to the second position along the first direction relative to the first shell, the locker is positioned in front of the propeller and comprises a second shell and the locking mechanism arranged on the second shell, and the locking mechanism is provided with a second clamping hole which is coaxial with the through hole and is oppositely arranged.

Inventors

  • WEI ZHICHENG
  • Su ze

Assignees

  • 金峦医疗科技(南京)有限公司

Dates

Publication Date
20260512
Application Date
20260304
Priority Date
20260211

Claims (10)

  1. 1. A fracture reduction assist device, comprising: The device comprises a propeller, a clamping piece, a pushing piece and a trigger, wherein the clamping piece is arranged on the first shell, the clamping piece is provided with a first clamping hole, the pushing piece is movably arranged on the first shell and is provided with a through hole which is coaxial with the first clamping hole and is arranged opposite to the first clamping hole, the pushing piece can move along the axial direction of the through hole, the trigger is rotatably arranged on the shell, the trigger is provided with a first position and a second position, the trigger in the first position can rotate relative to the first shell to the second position along a first direction, and in the process of rotating the trigger from the first position to the second position, the first clamping hole is switched from a first loosening state to a first clamping state, and the pushing piece moves from a contracted position to an extended position; The locker, the locker is located the place ahead of propeller, the locker include the second casing, and set up in the locking mechanism of second casing, locking mechanism be equipped with coaxial and the relative second centre gripping hole that sets up of via hole, the propulsion follow shrink position move to can push away when stretching out the position locking mechanism, so that second centre gripping hole is switched from the second state of unclamping to the second centre gripping state.
  2. 2. The fracture reduction assistance device according to claim 1, wherein the trigger is provided with a grip-promoting portion and a pushing portion, the grip is located on a movement path of the grip-promoting portion, and the pushing member is located on a movement path of the pushing portion; During the process of rotating the trigger from the first position to the second position, the clamping promotion part triggers the clamping piece, so that the first clamping hole is switched from the first loosening state to the first clamping state, and the pushing part pushes the pushing piece to move the pushing piece from the contracted position to the extending position.
  3. 3. The fracture reduction auxiliary device according to claim 1, wherein the clamping member comprises a first connecting portion connected to the first housing, two first clamping portions connected to the first connecting portion, the two first clamping portions being arranged at intervals in a direction perpendicular to an axial direction of the first clamping hole, a groove being provided on a side of each of the first clamping portions opposite to the other first clamping portion, the grooves on the two first clamping portions being fitted to form the first clamping hole; And in the process of rotating the trigger from the first position to the second position, the two first clamping parts are mutually closed.
  4. 4. A fracture reduction aid as claimed in claim 3, wherein the trigger is provided with two grip-promoting portions which respectively press the two first grip portions to bring the two first grip portions together during rotation of the trigger from the first position to the second position.
  5. 5. The fracture reduction aid of claim 4, wherein the two first clamping portions are each located between the paths of movement of the two clamping promotion portions during rotation of the trigger from the first position to the second position.
  6. 6. The fracture reduction aid of claim 1, wherein the pusher further comprises a reduction member disposed on the first housing and acting on the pusher, the reduction member being configured to provide a reduction force to the pusher to reduce to the contracted position when the pusher is in the extended position.
  7. 7. The fracture reduction aid of claim 1, wherein the first housing is provided with a guide hole coaxially disposed with the first clamping hole, and the pusher is movably disposed through the guide hole.
  8. 8. The fracture reduction aid according to claim 1, wherein the second housing is provided with a mounting hole which is coaxial with the through hole and is disposed opposite to the through hole, and the aperture of the mounting hole is gradually reduced in a direction from the propeller to the locker; The locking mechanism comprises a locking block, the locking block comprises a second connecting part and a plurality of second clamping parts connected to the second connecting part, the second clamping parts are matched to form a second clamping hole, and the second clamping parts are arranged at intervals along the circumferential direction of the second clamping hole; The pushing piece can push the locking block when moving from the contracted position to the extended position, so that the plurality of second clamping parts are extruded by the hole walls of the mounting holes, and the second clamping holes are switched from a second loosening state to a second clamping state.
  9. 9. The fracture reduction assisting device according to claim 8, wherein the second housing is provided with a bar-shaped hole communicating with the mounting hole, an extending direction of the bar-shaped hole is parallel to an axial direction of the mounting hole, the locking block further comprises a sliding projection connected with the second clamping portion or the second connecting portion, and the sliding projection penetrates the bar-shaped hole.
  10. 10. The fracture reduction aid of claim 8, wherein the locking mechanism further comprises a third housing and a compression assembly, the third housing being disposed over the second connection portion, the compression assembly being disposed within the third housing.

Description

Fracture reduction auxiliary device Technical Field The application relates to the technical field of fracture reduction, in particular to a fracture reduction auxiliary device. Background In the fracture reduction treatment, a method of inserting a k-wire into a fracture site and correcting the fracture site by means of a steel plate is generally used. The prior kirschner wire fixing related device used in clinic is complex in operation steps, poor in linkage, generally needs to be completed through a plurality of independent tools or operation steps, lacks of integrated linkage design, causes long operation flow, low operation efficiency in an operation area, and easily increases the risk of fracture reduction and displacement due to multi-step switching. Disclosure of Invention The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the application proposes a fracture reduction aid. According to some embodiments of the application, a fracture reduction auxiliary device comprises a propeller, a clamping piece, a pushing piece and a trigger, wherein the propeller comprises a first shell, the clamping piece is provided with a first clamping hole, the pushing piece is movably arranged on the first shell, the pushing piece is provided with a through hole which is coaxial with the first clamping hole and is arranged opposite to the first clamping hole, the pushing piece can move along the axial direction of the through hole, the trigger is rotatably arranged on the shell, the trigger is provided with a first position and a second position, the trigger in the first position can rotate to the second position along a first direction relative to the first shell, the first clamping hole is switched to a first clamping state from a first loosening state, the pushing piece is moved to an extending position from a contracted position, the locker is positioned in front of the propeller, and the trigger in the first position and the second position are arranged on the second clamping hole, and the locking mechanism can be switched to the second position from the contracted position, and the locking mechanism is arranged opposite to the second clamping hole, and the locking mechanism can be switched to the second position, and the locking mechanism can be moved from the contracted position to the second clamping hole. The fracture reduction auxiliary device provided by the embodiment of the application has at least the following beneficial effects: When the fracture reduction auxiliary device is used, the hole site on the steel plate can be aligned with the fixing hole of the bone, then the Kirschner wire is inserted into the hole site of the steel plate and the fixing hole of the bone at the same time, then the locking device is strung into the Kirschner wire from one end far away from the bone so that the Kirschner wire penetrates into the second clamping hole and the front end of the locking device is propped against the steel plate, then the pusher is strung into the end far away from the bone from the Kirschner wire so that the Kirschner wire penetrates into the through hole and the first clamping hole and the front end of the pusher is propped against the locking mechanism, and then the trigger is pulled to rotate in a first direction, so that the trigger rotates from the first position to the second position, in the process, the first clamping hole is switched from the first loosening state to the first clamping state, the pusher is moved from the contracted position to the extended position, and the pusher can push the locking mechanism from the second clamping hole to the second clamping state. Therefore, the locking device can lock the Kirschner wire, and the locking device can also prop against one side of the steel plate far away from the bone, so that the steel plate is prevented from loosening. After the pusher assists in locking the k-wire by the locker, the pusher is pulled out from the k-wire. When the trigger rotates from the first position to the second position, the clamping promotion part triggers the clamping piece to enable the first clamping hole to be switched from the first loosening state to the first clamping state, the pushing part pushes the pushing piece to move from the contracted position to the extended position, two core actions can be achieved in a single step, the operation is simple, the simplification of the operation process is facilitated, and the efficiency is improved. According to some embodiments of the application, the trigger is provided with a clamping promoting portion and a pushing portion, the clamping member is located on the moving path of the clamping promoting portion, and the pushing member is located on the moving path of the pushing portion; During the process of rotating the trigger from the first position to the second position, the clamping promotion part triggers the clamping piece, so that the first