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Threaded type tension nail

A lag nail and thread technology, applied in the direction of internal bone synthesis, fixator, fastening device, etc., can solve the problem of difficult screwing, and achieve the effect of smooth screwing, small loss of bone mass, and uniform crest width.

Pending Publication Date: 2019-03-22
SHUANGYANG MEDICAL INSTR SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary screws take into account the strengthening of the fixation effect, and the crest width on the thread is generally different. However, considering young patients or patients with better bone quality, it will be more difficult to screw in when the crest width is inconsistent.

Method used

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  • Threaded type tension nail
  • Threaded type tension nail

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Embodiment Construction

[0014] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred de...

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Abstract

The invention discloses a threaded type tension nail which comprises a body. A through center hole is formed in the axis of the body, the body comprises a threaded portion and a rod, the threaded portion and the rod are axially integrally formed, a plurality elongated grooves are axially uniformly formed in the outer surface of the rod, the widths of the elongated grooves are gradually increased from the rod to the threaded portion, tips are formed at two ends of each elongated groove, threads with equal crest widths are formed on the outer surface of the threaded portion, the end surface, which is far away from the rod, of the threaded portion is flat, and two V-shaped cutting edges are formed at the front end of each thread. The threaded type tension nail has the advantages that the threaded type tension nail can be smoothly screwed into bones and is good in bone pullout strength and applicable to young patients or patients with good bone quality, and conditions such as nail withdrawal can be prevented.

Description

technical field [0001] The present application relates to orthopedic surgery, in particular to a threaded tension nail. Background technique [0002] Ordinary screws generally have different crest widths on the thread due to the strengthening of the fixation effect. However, considering young patients or patients with better bone quality, it will be more difficult to screw in when the crest width is inconsistent. Contents of the invention [0003] The purpose of the present invention is to provide a threaded tension nail, which is more smooth to be screwed in, has good bone holding force, and prevents screw withdrawal, and is suitable for young patients or patients with good bone quality. [0004] To achieve the above object, the present invention provides the following technical solutions. [0005] The embodiment of the present application discloses a threaded tension nail, which includes a main body part with a through hole in the center of the shaft, the main body part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86
CPCA61B17/8615A61B17/8625A61B17/864A61B17/8645A61B17/869
Inventor 钱建清徐垒
Owner SHUANGYANG MEDICAL INSTR SUZHOU
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