Medical micro-fracture tool kit

A technology of microfracture and tools, which is applied in trocars, medical science, bone drill guidance, etc., can solve the problems of limited microfracture drilling angle, dead angle of microfracture drilling, iatrogenic injury, etc. , to achieve the effect of reducing subchondral bone damage, improving cartilage fibrogenesis, and improving curative effect

Pending Publication Date: 2020-03-17
何宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 d

Method used

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  • Medical micro-fracture tool kit
  • Medical micro-fracture tool kit
  • Medical micro-fracture tool kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] see Image 6 , the flexible soft drill 01 is combined with the 30° guide 02, the angle between the outer sleeve 022 and the toothed head end 021 is 30°, the drill bit 011 of the flexible soft drill 01 passes through the toothed head end 021 and is also bent to 30°, In order to adjust a better angle for clinical operations, the drilling is more precise.

Embodiment 2

[0065] see Figure 7 , the flexible soft drill 01 is combined with the 60° guide 02, the angle between the outer casing 022 and the toothed head end 021 is 60°, the drill bit 011 of the flexible soft drill 01 passes through the toothed head end 021 and is also bent to 60°, In order to adjust a better angle for clinical operations, the drilling is more precise.

Embodiment 3

[0067] see Figure 8 , the flexible soft drill 01 is combined with the 90° guide 02, the angle between the outer casing 022 and the toothed head end 021 is 90°, the drill bit 011 of the flexible soft drill 01 passes through the toothed head end 021 and is also bent to 90°, In order to adjust a better angle for clinical operations, the drilling is more precise.

[0068] The drug injection rod 03 includes a knob 031 and a connected flexible rod 032, through which the flexible rod 032 can also be adapted to connect with the above-mentioned guides at different angles, so as to inject drugs at different angles.

[0069] The drug injection rod 03 of the present invention actually has another function, which is equivalent to the inner core of the outer sleeve 022 of the guide 02. The outer sleeve 022 is hollow and has teeth at the front end, and is directed from the skin of the surgical approach to the site requiring surgery. When pushed and placed, it is easy to hang on the soft ti...

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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 ...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/17A61B17/34A61B17/00
CPCA61B17/00234A61B17/1615A61B17/1633A61B17/17A61B17/3421A61B17/3472A61B17/3478A61B17/3494
Inventor 何宇王洪郭晓勇孟春庆
Owner 何宇
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