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CN-121987289-A - Bone surgery perforator

CN121987289ACN 121987289 ACN121987289 ACN 121987289ACN-121987289-A

Abstract

The invention discloses a drilling device for orthopedic surgery, and particularly relates to the field of drilling devices. The device comprises a shell, a holding handle, a sliding plate, an electric push rod, a driving motor, a drill bit and an auxiliary clamping assembly, wherein an opening is formed in one side of the shell, the holding handle is arranged on one side of the shell, the sliding plate is connected to the opening of the shell in a sliding mode, the electric push rod is arranged between the sliding plate and the inner wall of the shell, the driving motor is arranged on the other side of the sliding plate, the drill bit is coaxially connected with the driving motor, and the auxiliary clamping assembly is used for limiting clamping of limbs at a drilling position and keeping stable movement of the sliding plate. By adopting the technical scheme of the invention, the problem that the drilling precision of the existing orthopaedics drill is easily reduced due to human factors is solved, and the stability and precision of drilling are maintained.

Inventors

  • FAN YUANZHI
  • WU YAOCHI
  • ZHANG JUNFENG

Assignees

  • 上海市第六人民医院

Dates

Publication Date
20260508
Application Date
20260317

Claims (10)

  1. 1. A bone surgery drill, comprising: The device comprises a shell (1), wherein an opening is formed in one side of the shell (1); a grip (3), wherein the grip (3) is arranged on one side of the shell (1); the sliding plate (6) is connected to the opening of the shell (1) in a sliding way; the electric push rod (7) is arranged between the sliding plate (6) and the inner wall of the shell (1); The driving motor (8) is arranged on the other side of the sliding plate (6); The drill bit (9), the said drill bit (9) is connected with drive motor (8) coaxially; the auxiliary clamping assembly is used for limiting clamping of limbs at the drilling position and keeping stable movement of the sliding plate (6).
  2. 2. The orthopaedic surgical drill of claim 1, wherein the auxiliary clamping assembly comprises: The two guide rods (10) are arranged on the shell (1) and symmetrically arranged on two sides of the driving motor (8), and each guide rod (10) penetrates through the sliding plate (6); the two sliding grooves (11) are symmetrically arranged on two sides of the two guide rods (10), and the opening sides of the two sliding grooves (11) are oppositely arranged; The two clamping rods (13) are respectively connected to the end parts of the two guide rods (10) in a rotating way, and the end parts of the clamping rods (13) are positioned in the corresponding sliding grooves (11); the two first push rods (22) are respectively arranged on the sliding plate (6), and grooves are formed in the end parts of each first push rod (22); The two compression springs (23) are respectively arranged in the corresponding grooves; The two second push rods (24) are respectively connected between the corresponding compression springs (23) and the clamping rods (13); And the two return springs (26) are respectively connected between the corresponding clamping rods (13) and the inner wall of the sliding groove (11).
  3. 3. An orthopaedic drill according to claim 2, wherein one side of each clamping rod (13) is provided with a guide slot (17), and the ends of two second push rods (24) are slidably connected in the corresponding guide slots (17).
  4. 4. The orthopedic operation drill according to claim 2, wherein a through groove is formed in one side of each sliding groove (11), a rubber pad (12) is arranged at the through groove, the rubber pad (12) is located on a movement track of the clamping rod (13), and a gap is reserved between the rubber pad (12) and the end portion of the clamping rod (13).
  5. 5. The orthopedic operation drill according to claim 4, wherein the clamping rod (13) is rotatably connected with the end part of the guide rod (10) through a pin shaft (14), an adjusting groove (15) is further formed in the clamping rod (13), the pin shaft (14) is slidably connected in the adjusting groove (15), and an adjusting spring (16) is connected between the pin shaft (14) and the inner wall of the adjusting groove (15).
  6. 6. An orthopaedic drill according to claim 2, wherein each clamping rod (13) is provided with a clamping pad (19) at its end, the clamping pads (19) being provided with clamping grooves (20).
  7. 7. An orthopaedic drill according to claim 6, wherein the end of the clamping rod (13) is provided with a screw (18), the screw (18) being in threaded connection with a clamping pad (19).
  8. 8. An orthopaedic drill according to claim 6, wherein the clamping pad (19) is provided with a pressure sensor (21) electrically connected to the drive motor (8).
  9. 9. An orthopaedic drill according to claim 1, wherein the guide rod (10) is an electric telescopic rod.
  10. 10. The orthopedic operation drill according to any one of claims 1-9, characterized in that the grip (3) is further provided with a control button (5) electrically connected with a driving motor (8) and an electric push rod (7).

Description

Bone surgery perforator Technical Field The invention relates to the field of drilling devices, in particular to a bone surgery drill. Background Bone science is an important branch of modern medicine, focusing on studying the anatomical physiological properties of the skeletal muscle system and the treatment of its related injuries. In bone surgery, the drilling operation is one of the most fundamental and critical steps, and no matter fracture internal fixation, joint replacement or spine surgery is performed, no accurate and reliable drilling instrument is needed. The orthopedic drill is used as an indispensable tool in bone setting and fixing operations, and the performance quality of the orthopedic drill is directly related to success and failure of the operations and postoperative rehabilitation quality of patients. With the deep research of biomechanics and the progress of material science, the precision, the safety and the operation convenience of the drilling instrument are required to be higher and higher by the orthopedic operation. Most of orthopedic drills widely used in clinic currently adopt a motor driving mode, and cutting and penetrating of bone tissues are completed through a drill bit rotating at a high speed. However, such conventional drilling instruments expose a series of inherent drawbacks in practical operation. The primary problem is that the stability in the drilling process is difficult to ensure, an operator needs to maintain the verticality and the direction of the drilling tool by completely relying on personal experience and hand feeling during operation, and particularly when facing hard bones or parts with complex anatomical structures, the hand-held drilling tool is extremely easy to shake and slide due to muscle fatigue, visual limitation or body position change of a patient. The unstable state caused by the human factors directly causes the reduction of drilling precision, so that the preset needle insertion point is deviated, or the drilling axis deviates from a preset track, and finally the accurate placement of the internal fixture is influenced. Therefore, there is an urgent need for an orthopedic drill having high stability. Disclosure of Invention The invention aims to provide an orthopedic operation drill, which solves the problem that the drilling precision of the existing orthopedic drill is easy to be reduced due to human factors. In order to achieve the above purpose, the technical scheme of the invention is as follows, the orthopedic operation drill comprises: A shell, wherein an opening is formed in one side of the shell; the holding handle is arranged on one side of the shell; the sliding plate is connected to the opening of the shell in a sliding way; the electric push rod is arranged between the sliding plate and the inner wall of the shell; the driving motor is arranged on the other side of the sliding plate; the drill bit is coaxially connected with the driving motor; The auxiliary clamping assembly is used for limiting clamping of limbs at the drilling position and keeping stable movement of the sliding plate. Further, the auxiliary clamping assembly includes: the two guide rods are arranged on the shell and symmetrically arranged on two sides of the driving motor, and each guide rod penetrates through the sliding plate; The two sliding grooves are symmetrically arranged on two sides of the two guide rods, and the opening sides of the two sliding grooves are oppositely arranged; the two clamping rods are respectively connected to the end parts of the two guide rods in a rotating way, and the end parts of the clamping rods are located in the corresponding sliding grooves; The two first push rods are respectively arranged on the sliding plate, and the end part of each first push rod is provided with a groove; The two compression springs are respectively arranged in the corresponding grooves; the two second push rods are respectively connected between the corresponding compression springs and the clamping rods; And the two reset springs are respectively connected between the corresponding clamping rods and the inner wall of the sliding groove. By adopting the technical scheme, the smooth movement of the sliding plate is kept through the guide rod, and the first push rod and the second push rod can be driven to move in the smooth movement process of the sliding plate, so that the clamping rod is pushed to rotate relative to the guide rod, and therefore the limb is clamped and limited, and the stability of drilling of the drill bit is further kept. Meanwhile, the stability in the clamping process can be kept by utilizing the compression spring and the reset spring, and the resetting of the drill is facilitated. Further, a guide groove is formed in one side of each clamping rod, and the end parts of the two second push rods are connected in the corresponding guide grooves in a sliding mode. By adopting the technical scheme, the reliability of the movement o