Apparatus for repairing ligament or tendon defect

A tendon and ligament technology, applied in the field of devices for repairing tendon or ligament defects, can solve problems such as difficulty in adjusting ligament tension, low healing ability, loose fixation, etc., to achieve the effect of improving curative effect and improving surgical accuracy

CN105078526AActive Publication Date: 2015-11-25XIANGYA HOSPITAL CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-11-25

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Abstract

The invention discloses an apparatus for repairing ligament or tendon defect, wherein the apparatus comprises a fastening screw front section and a fastening screw rear section which is detachably connected to the fastening screw front section; a self-tapped outer screw thread which can be tapped into bone is formed in the fastening screw front section; an outer screw thread which is continuously butted with the self-tapped outer screw thread of the fastening screw front section is formed in the outer surface of the fastening screw rear section; the outer surface of the fastening screw rear section is made from a material which can be healed with bone. The apparatus disclosed by the invention, by virtue of sectional and detachable design as well as pressurizing design, can achieve various functions through different structures, shapes and materials of the fastening screw front section and the fastening screw rear section, and can realize functional complementation of the fastening screw front section structure and the fastening screw rear section structure, so that physical fixation and biological healing fixation are combined to continuously keep an effective fixation strength; and the apparatus can be used for effectively regulating the tension of reconstructed ligaments or tendons, improving surgical precision, enabling a surgical object to freely move and act even in early stage, enhancing the curative effect of surgery and significantly reducing the difficulty of a ligament or tendon reconstruction surgery.
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Description

technical field

[0001] The present invention relates to a device for fastening tendons, ligaments and bones, in particular to a device for repairing tendon or ligament defects. Background technique

[0002] Human tendons are located at the two ends of skeletal muscles and attached to two or more bones. It pulls the contraction of skeletal muscles to drive the movement of different bones. Human ligaments connect bone to bone, mostly located around joints, strengthen and maintain the stability of joints in motion, and limit their activities beyond the physiological range. Tendons and ligaments can realize force transmission and are the key links in various activities of the human body. With the increase of traffic trauma and sports injuries, the incidence of tendon and ligament injuries is increasing. If not treated effectively, it will seriously affect the stability of joints, affect people's daily activities, and even cause disability.

[0003] Due to the certain elasticit...

Examples

Embodiment

[0061] Such as Figure 18As shown, the present invention provides a device for repairing ligament or tendon defects, including a fastening screw front section 5, a fastening screw rear section 16, a connecting screw 17, a tendon fixation compression screw 30, and an anti-tendon friction protection clasp 33 and artificial tendons29, Figure 19 Shown is a schematic diagram of the structure of the device after the assembly of each component is completed, wherein the structure after the fastening screw front section 5 and the fastening screw rear section 16 are connected as one is called the fastening screw.

[0062] Such as Figure 1 to Figure 4 and Figure 10 , Figure 11 , Figure 18 , Figure 19 As shown, in order to obtain early and stable fixation, the front section 5 of the fastening screw used in this embodiment is made of metal (it can also be made of absorbable material or ceramic material), and the front section 5 of the fastening screw can be deeply implanted in t...