Meniscus suture system and manufacturing method

Abstract

The invention discloses a meniscus suture system and a manufacturing method, the meniscus suture system comprises an implant and an inserter, the implant comprises a fixing block and a suture, and the inserter comprises a handle, a push button, a push needle, a puncture needle and a limiting sleeve; wherein a guide groove is formed in the handle, and a first guide groove and a second guide groove are respectively formed in the guide groove; the first push button and the second push button are clamped in the first guide groove and the second guide groove together with the fixing block T1 and the fixing block T2 respectively, and six depth gears are designed to be matched with the limiting sleeve; the puncture needle is bent upwards, straightly and downwards, tissue can be punctured easily, scales are marked outside the puncture needle, the puncture needle is used in cooperation with the limiting sleeve, and convenience and safety of meniscus suture are improved. Therefore, the implant is triggered and pushed out twice through a push rod triggering mechanism, and the depth limiting effect of the limiting sleeve is matched, so that convenience and safety of meniscus suture depth limiting and positioning are met; and the curled puncture needle structure meets a smaller puncture diameter, low-incisura and 1mm implants can be realized, and the precision of meniscus suture is met.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a meniscus suturing system and a manufacturing method. Background technique [0002] The meniscus is a semilunar cartilage-like tissue located between the femur and the tibia of the knee joint. It plays a very important role in maintaining the normal physiological functions of the knee joint, including bearing dispersive stress, absorbing shock, increasing the contact area of ​​the articular surface and between the tibia and femur. The degree of matching, stable joints, nutrition and lubrication of joints, proprioception, etc. [0003] Studies have shown that the healing rate of the meniscus after suture is significantly higher than that without suture. Therefore, for simple meniscal injuries, it is necessary to reconstruct a nearly complete meniscus fibrocartilage structure, stabilize or even restore the stability of the injured part, which is of great significance for ...

AI Technical Summary

Problems solved by technology

The penetration depth of the suture needle needs to be strictly controlled. However, it is difficult to judge the penetration depth of the suture needle from the arthroscope. If the penetration is too deep, the needle will damage the nerves and blood vessels behind the meniscus. If it is too shallow, it will not be able to release the fastener plate to the designated position smoothly

In addition, the size requirements of the implant are also very strict. If the size of the implant does not match the size of the meniscus injury and the meniscus suture is excessively pursued, the ruptured meniscus will be poorly healed even after suturing. , not even healing at all

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