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Orthopedics nail taking device

A technology of orthopedics and bone nails, applied in the field of orthopedic medical equipment, can solve problems such as easy secondary fractures, increased trauma, and iatrogenic injuries of patients, and achieve the effects of increasing the welding surface area, short welding time, and convenient use

Inactive Publication Date: 2016-08-24
RIZHAO HOSPITAL OF TCM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This operation process increases the trauma, re-trauma at the fracture site, and it is very easy to fracture again
Moreover, when a broken nail occurs, some doctors are often at a loss what to do at this time, wantonly chiseling away the bone or drilling holes to cause too many bone tissue defects, resulting in intraoperative fractures or postoperative refractures, causing iatrogenic injuries to patients, increasing The risk of infection and re-fracture, the patient's hospitalization medical expenses increase, and cause medical disputes

Method used

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as Figure 1-3 As shown, the orthopedic nail removal device includes a bone nail locking mechanism 1, a transition welding core mechanism 2, and an ultrasonic welding mechanism 3; the bone nail locking mechanism 1 includes a frustum-shaped sleeve 4 located below and a guide tube 5 located above; the frustum-shaped sleeve The outer wall of 4 is evenly provided with anti-slip lines in the circumferential direction; the upper end of the cone-shaped sleeve 4 is threaded with the guide tube 5; the lower end of the guide tube 5 is connected with two symmetrically arranged elastic hoop halves 7; each elastic hoop The lower end of half body 7 is all fixed with arc-shaped card 8; Two arc-shaped cards 8 are inside the frustum-shaped cover 4; The pipe diameters are equal; the transitional welding core mechanism 2 is located inside t...

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Abstract

The invention discloses an orthopedics nail taking device, and relates to the technical field of orthopedics medical equipment. The orthopedics nail taking device comprises a nail locking mechanism, a transition core wire mechanism and an ultrasonic welding mechanism, wherein the nail locking mechanism comprises a truncated cone-shaped sleeve positioned at the lower part and a guide tube positioned at the upper part; antiskid stripes are uniformly arranged on the outer wall of the truncated cone-shaped sleeve in the circumferential direction; the upper end of the truncated cone-shaped sleeve is in screw-thread fit with the guide tube; the lower end of the guide tube is connected with two symmetrically arranged elastic hoop semi-bodies; the transition core wire mechanism comprises a cylindrical welding block positioned at the lower end, a transmission screw cap positioned at the upper end and a hexagonal double-screw bolt connected between the cylindrical welding block and the transmission screw cap; a crossed bulge is arranged at the lower end of the cylindrical welding block; an internal hexagonal screw hole is formed in the top surface of the transmission screw cap; the ultrasonic welding mechanism comprises a support arranged on two sides of the guide tube and an ultrasonic welding machine arranged at the upper end of the support. The orthopedics nail taking device is convenient to use and simple to operate, and can be firmly connected with nails, so that the nails are unlikely to slip off and be broken in the nail taking process.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical equipment. Background technique [0002] Clinically, screws and plates are usually used for internal fixation of the fracture site. When removing the plates and screws, due to the thread locking system between the plates and the screws and the problem of rust, the plates and screws cannot be removed smoothly. The way that adopts at present is to wear off the nut with a drill bit earlier and take out the steel plate and then slot around the screw and drill holes to take out the screw. This operation process increases the trauma, re-trauma at the fracture site, and it is very easy to fracture again. Moreover, when a broken nail occurs, some doctors are often at a loss what to do at this time, wantonly chiseling away the bone or drilling holes to cause too many bone tissue defects, resulting in intraoperative fractures or postoperative refractures, causing iatrogenic injuries to patients,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/92A61B17/86
CPCA61B17/86A61B17/92A61B2017/922
Inventor 郑胜
Owner RIZHAO HOSPITAL OF TCM
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