Bridge joining composite bone fracture internal fixing device

Abstract

A combined bridge fixator for bone fracture is composed of two fixating blocks with the hole A parallel to its main plane for the connecting rod and the hole B perpendicular to its main plane for screw, two connecting rods in said holes A, fixating screw in said hole B, and locking screw. Its advantage is high fixating effect.

Description

technical field [0001] The invention belongs to the technical field of orthopedic fixation devices, and in particular relates to a bridging combined fracture internal fixation device suitable for various fracture states. Background technique [0002] At present, orthopedic internal fixation implants at home and abroad are still dominated by steel plates and intramedullary nails. With the continuous improvement and perfection of these two series of fixation devices, various straight, pressurized and anatomical types have been developed. Steel plates, various self-locking and interlocking intramedullary nails, various external fixators and memory alloy series fixation devices, and advanced "A0" Liss steel plates, etc. Faced with a wide variety of internal implants with complex specifications and shapes As well as supporting equipment, it often brings troubles in the selection of clinical operations. The deviation in selection not only causes pain to patients, but even affects ...

AI Technical Summary

Problems solved by technology

[0002] At present, orthopedic internal fixation implants at home and abroad are still dominated by steel plates and intramedullary nails. With the continuous improvement and perfection of these two series of fixation devices, various straight, pressurized and anatomical types have been developed. Steel plates, various self-locking and interlocking intramedullary nails, various external fixators and memory alloy series fixation devices, and advanced "A0" Liss steel plates, etc. Faced with a wide variety of internal implants with complex specifications and shapes As well as supporting equipment, it often brings troubles in the selection of clinical operations. The deviation in selection not only causes pain to the patient, but even affects the final effect of the operation. In severe cases, it may lead to the failure of the operation and cause medical disputes.

In terms of surgical operation, intramedullary nailing requires reaming, interlocking, and more skilled operation techniques. Once intraoperative interlocking is inaccurate, the operation will be difficult to implement. Plate series operations require open reduction and fixation, periosteum stripping, and even The steel plate directly compresses the fracture site, seriously affecting the bone growth environment

In addition, the series of steel plate intramedullary nails also have the problems of stress shielding and stress concentration; although the series of external fixators are very optional, they are often not used as final fixation devices due to postoperative infection.

Images