Hallux valgus minimally-invasive surgical knife

拇外翻微创手术刀

Abstract

The utility model relates to the technical field of medical instruments, in particular to a Hallux valgus minimally-invasive surgical knife, which is provided with a knife head and knife handle, wherein the knife head is provided with a straight-bladed blade. The utility model is characterized by being provided with an extension rod and a sickle-shaped knife, wherein the extension rod is in an arc shape, the arc shape of the extension rod is matched with the convex surface of a first metatarsal bone head, one end of the extension rod is connected with the knife handle, the other end thereof is fixedly connected with the straight-bladed blade, the edge of the straight-bladed blade is arranged at the right side of the arc surface of the extension rod, and is vertical to the arc surface, the left end of the sickle-shaped is fixedly connected with the straight-bladed blade in a cross way, the edge of the straight-bladed blade is in transition connection with the edge of the sickle-shaped blade, and the curved surface formed by the sickle-shaped blade and the straight-bladed blade is matched with the arc surface of the outer edge of hallux proximal phalanx. By adopting the structure, the utility model has rational structure and convenient use, and can reduce the normal two cuts into one cut, so that the operation wound is less, can be quickly healed, and is beautiful after the operation, and the utility model reduces allowable blood volume, shortens operation time, and reduces the pain of a patient.
本实用新型涉及医疗器械技术领域,具体地说是一种拇外翻微创手术刀,设有刀头和刀柄,刀头上设有直刃刀片,其特征在于设有延伸杆和镰形刀片,延伸杆为弧形,延伸杆的弧形与第一跖骨头凸面相吻合,延伸杆一端与刀柄相连接,另一端与直刃刀片固定连接,直刃刀片的刀刃设在延伸杆弧形面右侧,且与弧形面方向垂直,镰形刀片左端与直刃刀片交叉固定连接,直刃刀片的刀刃与镰形刀片的刀刃圆弧过渡连接,镰形刀片和直刃刀片形成的曲面与拇趾近节趾骨外缘弧形相吻合,本实用新型由于采用上述结构,具有结构合理、使用方便,可将常规的两个切口减少为一个,使手术创伤小,愈合快,术后美观,减少失血量,缩短手术时间,减轻病人痛苦等优点。

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