bio-knot-free locking nails

Abstract

The invention relates to the technical field of medical biological internal fixation instruments, and discloses a biological joint-less locking nail, which comprises a locking nail body (22), wherein the locking nail body (22) comprises a nail head (1), a nail body (2) and a nail tail (3), which are sequentially connected; the nail body (2) is provided with threading holes (11), and is made from cortical bones; so that the biological joint-less locking nail is endowed with high biocompatibility and bone conduction and induction activity, and can be completely degraded and absorbed after complete bone healing. The biological joint-less locking nail is convenient to use, time-saving and efficient in operation and firm in fixation; the biological joint-less locking nail is made from cortical bones, so that initial fixation strength can be achieved, and tendon-bone healing fixation can be facilitated; the raw materials are low in cost, so that the economic burden of a patient is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical biological internal fixation devices, in particular to a biological knot-free locking nail. Background technique [0002] Anchor suturing and fixation to repair shoulder joint injuries (such as rotator cuff rupture, SLAP, Bankart, etc.), ankle ligament or tendon rupture are currently recognized surgical methods. In recent years, the suture anchor suture bridge fixation technique has been widely used because of its simple and fast fixation method, short operation time, and large contact area between tendon and attachment area. The firmness of anchor fixation directly determines the curative effect of the operation. [0003] At present, the commonly used biological knot-free locking nails mainly include metal anchors, absorbable material anchors, and polyetheretherketone (Peek) material anchors. Metal anchors are expensive and stay in the body permanently. Patients with osteoporosis are prone to a...

AI Technical Summary

Problems solved by technology

Metal anchors are expensive and stay in the body permanently. Patients with osteoporosis are prone to anchor prolapse and electrolytic reactions, which affect postoperative MRI examinations

Absorbable materials are also very expensive. After implantation into the human body, the strength of the material will decay with time, and the probability of postoperative nail breakage is high. It takes 2 to 3 years to degrade in the body, which will induce inflammatory reactions in the surrounding tissues of the internal fixation, resulting in reactive osteolysis

Polyetheretherketone material is expensive and does not show up in X-ray films, so it is impossible to visually observe the implanted anchors based on X-ray films after surgery

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