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A kind of arc-shaped hole puncher for bone

An arc-shaped hole and hole punch technology, applied in the field of medical devices, can solve the problems of low flexibility, the device can only punch curved holes, and it is inconvenient to adjust the trajectory of the hole, etc., and achieves high flexibility and meets punching needs. Effect

Active Publication Date: 2020-08-07
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bidirectional drilling can only follow the preset trajectory, which has low flexibility and is inconvenient to adjust the trajectory of the hole according to different bones and different treatment needs
And the device can only make curved holes, not straight holes

Method used

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  • A kind of arc-shaped hole puncher for bone
  • A kind of arc-shaped hole puncher for bone
  • A kind of arc-shaped hole puncher for bone

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Experimental program
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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the bone arc-shaped hole puncher disclosed by the present invention includes a flexible arm 2 and a vibration punching device 3. Cable 4 and steering cable 4 are located outside the flexible arm 2. The vibration drilling device 3 includes an ultrasonic transducer and a tool head 7 connected to the ultrasonic transducer. The tool head 7 is located at the front end of the vibration drilling device. The ultrasonic transducer is externally connected to the ultrasonic generator through wires. Two steering cables 4 are located on opposite sides of the flexible arm 2 .

[0024] Further, a passage is provided in the axial direction of the flexible arm 2 , a through hole 6 is provided in the tool head 7 , and a liquid pipe 5 is provided ...

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Abstract

The invention relates to an arc bone hole puncher which comprises a flexible arm and a vibratory punching device, wherein the front end of the flexible arm is connected with the vibratory punching device; a pair of steering stay ropes is arranged on the vibratory punching device, and located on the outer side of the flexible arm; the vibratory punching device comprises an ultrasonic transducer and a tool head connected with the ultrasonic transducer; the tool head is located at the most front end of the vibratory punching device. According to the arc bone hole puncher, a bent or arc hole can be unidirectionally processed in a bone by the combined action of the flexible arm and the steering stay ropes; a processing track can be adjusted as required during a processing course; the flexibility is high.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a bone arc-shaped hole puncher. Background technique [0002] At present, the production of bone holes is mainly made of straight screws, Kirschner wires, Steiner wires, straight metal rods, straight absorbable rods, etc., but sometimes it is necessary to perform arc-shaped drilling in clinical practice, and the arc-shaped holes are suitable for steel wires. Placement or other internal fixation systems that may be developed in the future, the arc-shaped hole can increase the length and holding force of the internal fixation in the bone, and it has advantages over the straight one in the bone end or irregular bone structure. Human bones are irregular, especially at the ends of long bones, pelvis, spine, etc. Fractures or lesions in these parts need to be fixed by drilling holes in the bones. Drilling straight holes will encounter different degrees of difficulty, while ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/16
CPCA61B17/1604A61B17/1628A61B17/1635A61B2017/564
Inventor 马立泰洪瑛刘浩杨毅戴丽娟宁宁
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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