Novel external fixation spicule structure

Abstract

The invention relates to a novel external fixation spicule structure, including a metal needle body, a tail cap, an L-polylactic acid needle and an L-polylactic acid core. A metal needle body is a hollow tubular structure, wherein the inner surfaces of the front end and the end thereof are uniformly provided with connection threads, A plurality of through holes are uniformly arranged on the side walls of the front half of the metal needle body, A levo-polylactic acid needle rear end face is embed on that front end face of the metal needle body and is connected with the metal needle body through connecte threads, The front end face of the tail cap is embedded in the rear end face of the metal needle body and is connected with the metal needle body through connecting threads, and the metal needle body, the tail cap and the left-hand polylactic acid needle are sealed together in a load-bearing cavity, the left-hand polylactic acid inner core is embedded in the load-bearing cavity, and thetail cap comprises a metal load-bearing shell and an elastic sealing block. On the one hand, the invention has good structural strength, on the other hand, it can effectively promote the speed of bone healing, on the other hand, it can effectively improve the efficiency when the bone needle is pulled out from the bone, and it can effectively prevent the secondary injury to the wound of the patient when the bone needle is pulled out.

Description

technical field [0001] The invention relates to a bone needle structure, specifically a novel external fixation bone needle structure. Background technique [0002] At present, in order to reduce the risk of wound infection and flexibly administer medication to patients' wounds according to needs, a new type of bone needle structure with a hollow structure and an anti-infection tail cap has been developed. This type of bone needle can also be used in conjunction with the external syringe light equipment through the anti-infection tail cap. For example, the invention patent with the application number "201611207752.0" discloses a bone needle structure of this type, but it is found in use At present, this kind of bone needles are often made of titanium, titanium alloy, stainless steel and other metal materials. Although the structure is strong and relatively light, on the one hand, due to the poor affinity between metal human bones and muscle tissues, it seriously affects The...

AI Technical Summary

Problems solved by technology

[0002] At present, in order to reduce the risk of wound infection and flexibly administer medication to patients' wounds according to needs, a new type of bone needle structure with a hollow structure and an anti-infection tail cap has been developed. This type of bone needle can also be used in conjunction with the external syringe light equipment through the anti-infection tail cap. For example, the invention patent with the application number "201611207752.0" discloses a bone needle structure of this type, but it is found in use At present, this kind of bone needles are often made of titanium, titanium alloy, stainless steel and other metal materials. Although the structure is strong and relatively light, on the one hand, due to the poor affinity between metal human bones and muscle tissues, it seriously affects The recovery speed of the patient's wound healing is reduced. At the same time, because the structure of the bone needle is relatively fixed, as the patient's wound recovers, the pressure and friction between the bone needle and the patient's bone and muscle tissue will increase, resulting in the bone needle being pulled out. It is very difficult, complicated to operate, and the pulling force is large, and it is very easy to cause secondary damage to the patient's wound during the pulling out of the bone needle. Therefore, in view of this situation, it is urgent to develop a new bone needle structure to Meet the needs of actual use

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