Assembled brachial intramedullary nail plate

By designing an assembled intramedullary nail plate that conforms to the physiological curve, the problems of excessive damage to patients and unstable fixation in existing humeral fracture fixation techniques have been solved, achieving stable fixation and rapid recovery.

CN224179778UActive Publication Date: 2026-05-01HEBEI RUIHE MEDICAL DEVICES CO LTD
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Patent Information

Application Number
CN202520311336.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-05-01
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Current humeral fracture fixation techniques are highly invasive to patients, resulting in unstable fixation and impaired recovery, especially in elderly patients with osteoporosis. Furthermore, conventional intramedullary nailing may cause articular surface damage and rotator cuff injury, affecting postoperative functional recovery.

Method used

An assembled humeral intramedullary nail plate was designed, including a bone plate, an intramedullary nail, and an intramedullary fixation nail. The inner wall of the bone plate conforms to the physiological curve of the greater tubercle of the humeral head, and the intramedullary nail conforms to the shape of the humeral medullary cavity. Stable fixation is achieved through a central locking hole and an edge locking hole, reducing surgical trauma.

Benefits of technology

It is simple to operate, minimally invasive, provides stable fixation, improves the patient's recovery speed and fracture healing effect, and reduces damage to important structures.

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Abstract

The utility model provides an assembled brachial intramedullary nail plate, and belongs to the technical field of medical instruments. The assembly type humeral intramedullary nail plate comprises a bone fracture plate, an intramedullary nail, an intramedullary fixing nail and a plate locking nail, the inner side wall of the bone fracture plate conforms to the side wall curve of a greater tuberosity of a humeral head, the intramedullary nail is in a bent shape conforming to the shape of a humeral marrow cavity, a middle locking hole is formed in the middle of the bone fracture plate, and the plate locking nail is arranged in the middle of the bone fracture plate. The upper end of the intramedullary nail is located on the inner side of the middle locking hole, the threaded part of the intramedullary fixing nail penetrates through the middle locking hole and is matched with a threaded nail hole in the upper end of the intramedullary nail, multiple sets of edge locking holes are formed in the circumferential direction of the bone fracture plate, and the plate locking nail penetrates through the edge locking holes to fix the bone fracture plate to the greater tuberosity of the humerus head. According to the assembly type humeral intramedullary nail plate, after an intramedullary nail is implanted, the bone fracture plate is installed at the upper end of the intramedullary nail, trauma is small, operation is easy, and fixation is stable.
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