Meniscus suturing instrument with good stability

Abstract

The invention relates to a meniscus suturing instrument with good stability, which comprises a handle, a push-out mechanism, a puncture mechanism, a first implant and a second implant, and the first implant and the second implant are arranged in the puncture mechanism. The push-out mechanism comprises a main rod, a push handle and a coaxial driving mechanism connected with the main rod and the push handle, the main rod is used for pushing the first implant and the second implant out of the puncture mechanism, the push handle is arranged on the handle in a sliding mode, and the coaxial driving mechanism is used for transmitting pushing force of the push handle to the main rod. Wherein the coaxial driving mechanism can guarantee the coaxiality between the push plate and the main rod, the phenomenon that the push plate is stuck and cannot be pushed is avoided, and rapid push-out of the first implant and the second implant is guaranteed. Operation time can be effectively shortened, labor intensity of medical staff is relieved, potential risks borne by patients are reduced, effective healing of body tissue is guaranteed, and tedious or dangerous operation of secondary pushing out is omitted.

Description

technical field [0001] The invention relates to the technical field of meniscus suture, in particular to a meniscus suture instrument with good stability. Background technique [0002] As we all know, the meniscus is a semilunar cartilage-like tissue located between the femur and tibia of the knee joint, and is located on the medial and lateral articular surfaces of the tibial plateau. Its cross-section is triangular, thick on the outside and thin on the inside, slightly concave on the top to match the femoral condyle, and flat on the bottom to meet the tibial plateau. The meniscus has the functions of increasing stability, transmitting load, absorbing shock, and lubricating joints. With the improvement of people's living standards, national fitness is becoming more and more popular, sports injuries are also increasing, and meniscus injuries are becoming more and more common. [0003] In the prior art, such as the Chinese patent whose publication number is CN213850854U, it...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: after the above-mentioned instrument is punctured through the meniscus and reaches the depth position where the implant fixture can be released, the implant fixture is released and deployed, the pressure is maintained and the needle bar is withdrawn. Push the thread to ensure it is firm and reliable; then tie a knot outside the joint, push the knot pusher to the meniscus, cut off the excess thread, and the operation is complete

Because there is a gap between the sheath seat and the inner needle bar, when the inner needle bar is actually pushed, there will be a phenomenon that the inner needle bar and the sheath seat cannot be coaxial, causing the inner needle bar to be stuck or unable to be pushed out when it is pushed out, thus Prolong the time-consuming operation and increase the error rate

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