Phalangeal fracture kirschner wire internal fixation guider and using method thereof

Abstract

The invention discloses a phalangeal fracture kirschner wire internal fixation guider and a using method thereof. The guider comprises a hollow guide needle, a direction pointer and a handle. The direction pointer parallel to the hollow guide needle is arranged above the hollow guide needle, and the direction pointer and the handle are both connected with a guide needle body through sleeves and can rotate around the longitudinal axis of the guide needle. The phalangeal fracture kirschner wire internal fixation guider is simple in structure, convenient to manufacture and low in cost. A kirschner wire can stably drill holes in the smooth inner wall of a finger marrow cavity through a slop at the far end of the hollow guide needle; meanwhile, the outlet position of the kirschner wire can be judged before kirschner wire is threaded, and soft tissue damage caused by multiple times of needle threading can be avoided. The one-time needle threading success rate can be increased, damage of X rays to the bodies of a doctor and a patient in an operation can be relieved, and dependence on the physical strength and experience of the doctor is reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a Kirschner wire guide device specially used for internal fixation treatment of phalanx fracture with Kirschner wire intramedullary needle insertion. The abbreviation is a Kirschner wire internal fixation guide for phalanx fracture and its application method. Background technique [0002] Phalangeal fracture is a common case in hand surgery, and intramedullary retrograde needle and cross Kirschner wire internal fixation is a commonly used classic treatment. However, this traditional Kirschner wire fixation method has certain disadvantages: 1. The success rate of one-time needle penetration is low, the operator is prone to fatigue, and it is easy to cause prolonged operation time: the Kirschner wire needs to maintain a certain angle with the longitudinal axis of the phalanx. If the angle is too small, the joint may be fixed, and if the included angle is too large, the phala...

AI Technical Summary

Problems solved by technology

However, this traditional Kirschner wire fixation method has certain disadvantages: 1. The success rate of one-time needle penetration is low, the operator is prone to fatigue, and it is easy to cause prolonged operation time: the Kirschner wire needs to maintain a certain angle with the longitudinal axis of the phalanx. If the angle is too small, the joint may be fixed, and if the included angle is too large, the phalanx near (or far) from the fracture line may not be fixed, and the inner wall of the medullary cavity of the finger is smooth. , it is difficult for the Kirschner wires to remain stably within this optimal angle range

2. Repeated needle punctures will lead to loosening of the Kirschner wire, local osteonecrosis, bone resorption, high probability of soft tissue iatrogenic injury, and unstable fracture fixation. Repeated fluoroscopy during the operation will increase the impact of X-rays on the body of both doctors and patients. damage

Therefore, this method requires higher experience and physical strength of the operator.

Images