Anti-infection external fixation hollow spicule with tail cap and injection hole

Abstract

The invention discloses an anti-infection external fixation hollow spicule with a tail cap and an injection hole, which relates to a hollow spicule capable of being injected with liquid, is a metal spicule required during treatment of femoral neck fracture by an external fixation support, and also can be used for fixing long bone of limbs. The anti-infection external fixation hollow spicule comprises a hollow spicule body, an inner core and the tail cap, wherein an inner core hole is formed in the hollow spicule body; a fast mounting connector and an injector connector are arranged at the tail of the hollow spicule body; a cancellous bone thread is formed in the head of the hollow spicule body; a Kirschner wire is arranged at the front part of the inner core; a short cylindrical body is arranged at the back part of the inner core; the Kirschner wire arranged at the front part of the inner core is matched with the inner core hole in the hollow spicule body closely and smoothly; the tail cap is provided with an inner core mounting hole; and a tail cap inner thread is formed in the lower end part of the inner core mounting hole. The tail cap can be quickly connected to the tail of the hollow spicule body; the tail cap inner thread is matched with the injector connector at the tail of the hollow spicule body; a seal ring is mounted in the tail cap; and the tail cap can fix the movement of the inner core and prevent liquid from flowing out and being in contact with air.

Description

technical field [0001] The invention relates to an externally fixed hollow bone needle with a tail cap and an injection hole for preventing infection, which relates to a hollow bone needle that can inject liquid, and is a metal bone needle that is mainly required for external fixation brackets to treat femoral neck fractures. It can also be used Fixed on the long bones of the limbs. Background technique [0002] Femoral neck fractures due to osteoporosis bone strength decline, coupled with the upper femoral neck nutrient vessel holes densely, can weaken the biomechanical structure of the femoral neck, making the femoral neck fragile. In addition, due to the degeneration of the muscles around the hip of the elderly, the reaction is slow, and the harmful stress on the hip cannot be effectively offset. In addition, the hip is subject to greater stress (2 to 6 times the body weight), and the local stress is complex and changeable. Violence such as slipping on flat ground, falli...

AI Technical Summary

Problems solved by technology

The patient cannot sit or stand after the injury, which may easily lead to the displacement of the fracture block, resulting in shortening of the limbs, or the possibility of cutting blood vessels, which may lead to dismemberment or life-threatening in severe cases

[0003] In the traditional external fixation of intertrochanteric fractures, the femoral neck and femoral head at both ends of the fracture line are prone to rotation, deviation, slippage, and alignment of force lines is difficult during intraoperative fixation.

A lot of time is wasted during fixation, which increases the difficulty of surgery

Postoperative trauma site infection is not easy to treat, and disinfection care is cumbersome

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