Medical micro-fracture tool kit

Abstract

The invention discloses a medical micro-fracture tool kit, the medical micro-fracture tool kit comprises a guide, a flexible soft drill and a medicine pushing and injecting rod which are connected with the guider in a matched mode. The guider comprises a toothed head end, an outer sleeve and a handle part, the interiors of the outer sleeve and the handle part are of cavity structures, one end of the outer sleeve is connected with the toothed head end into a whole, the other end of the outer sleeve is sleeved with the handle to be connected, and an included angle of 0-180 degrees is formed between the toothed head end and the outer sleeve. The flexible soft drill comprises a drill bit, a spring, a soft drill rod part and a soft drill handle part which are connected in sequence, a tough inner core is arranged in the soft drill rod part, and the drill bit can be bent to be matched with the guiders at different angles by combining with the spring. Clinically, a 30-degree guider, a 60-degree guider and a 90-degree guider are commonly used. The flexible soft drill can be matched with the guiders at different angles, multi-angle and accurate drilling can be achieved, fibrocartilage osteogenesis is improved, and the curative effect is greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of medical instruments, in particular to a microfracture tool set for multi-angle drilling. 【Background technique】 [0002] In medical clinical operations, the surgical method of drilling in the defect area for cartilage defect areas of osteoarthritis or other traumatic cartilage defects is called microfracture surgery. This procedure must be done with the help of microfracture tools. Most of the current microfracture treatment tools have sharp ends, which can be selectively bent at specific angles such as 30°, 60°, 90°, etc. relative to the longitudinal axis of the shaft. The tail of the fracture tool allows the sharp end to pass through the subchondral bone beneath the defective cartilage area to an area with a rich blood supply. The microfracture tool kit is then removed, thereby causing microporous channels and remaining in the subchondral bone, a microfracture tool kit is typically used to create a ...

AI Technical Summary

Problems solved by technology

[0003] When using the traditional microfracture device, the operator first holds the handle of the microfracture device, and then the assistant hits the tail end of the microfracture device with a hammer, and the sharp tip of the microfracture device drills forward into the bone to realize the microfracture drilling operation , the disadvantages of this method are: (1) Due to the limitation of the incision direction, the angle of the microfracture drilling is very limited; (2) When the hammer hits the end of the microfracture device, if the microfracture device cannot be held, It may slide forward and accidentally injure normal cartilage, resulting in iatrogenic injury

The disadvantage of this structure is that the part of the human body that needs microfracture surgery is arbitrary, and the angle of the drill is pre-defined, so there is still a dead angle in the angle of microfracture drilling.

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