Anti-infection internal fixation apparatus for long bones of limbs

A fixation device and anti-infection technology, applied in fixers, internal bone synthesis, external plates, etc., can solve the problems of increasing treatment costs, increasing patient pain, and prolonging patients' hospital stay, so as to shorten the number of operations and recovery time, and improve Efficacy of curative effect, pain reduction and economic burden

Inactive Publication Date: 2015-11-04
陈卫 +1
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Problems solved by technology

At the same time, long-term intravenous and / or oral administration of antibiotics is required with the assistance of an infection doctor, which not only prolongs the hospital stay of the patient, increases the pain of the patient, but also increases the cost of treatment

Method used

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  • Anti-infection internal fixation apparatus for long bones of limbs
  • Anti-infection internal fixation apparatus for long bones of limbs
  • Anti-infection internal fixation apparatus for long bones of limbs

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Embodiment Construction

[0019] The present invention includes a bone plate 1 and an intramedullary nail 2. The bone plate 1 has a fixing screw hole 3 along the central axis of the plate surface, and the intramedullary nail 2 has a locking screw hole 4 perpendicular to the axis of the intramedullary nail. There is no difference between bone plates and intramedullary nails.

[0020] The improvement of the present invention is that a drug-filled structure is added on the surface of the bone bone plate 1 and the surface of the nail body of the intramedullary nail 2 . There are two structures for filling drugs. One structure is to arrange grooves 5 on the surface of the bone plate 1 and the surface of the nail body of the intramedullary nail 2. There are multiple grooves 5, and the multiple grooves 5 are arranged along the bone plate. 1. The length direction of the board surface is parallel to the length direction of the intramedullary nail 2. The nail body is arranged in parallel, and the groove 5 is fil...

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Abstract

An anti-infection internal fixation apparatus for long bones of limbs, belonging to the technical field of orthopedic medical devices, is used for fighting infections during internal fixation. The technical scheme comprises: a board of a bone plate and the surface of a nail body of an intramedullary nail are provided with several grooves or circular bulges filled up with medicine; the grooves are arranged in parallel in the longitudinal direction of the bone plate board and of the intramedullary nail body. Or the circular bulges are evenly distributed on the bone plate board and the surface of the intramedullary nail body. Medicine is added in the grooves or between the circular bulges. The grooves or the circular bulges can be filled up with slow-release sensitive antibiotics so that the medicine can be delivered directly to the lesion. The targeted control of infection increases the replacement success rate of internal fixation, improves therapeutic effect, and reduces pains and financial burden for patients. The provided anti-infection internal fixation apparatus for long bones of limbs is an innovation in the technical field of orthopedic medical device, effectively overcoming the defect that the internal fixture works as one of sources of infection, giving solution to a long term unsolved problem, greatly decreasing the number of operation and time of recovery, and having great application value.

Description

technical field [0001] The invention relates to an anti-infection internal fixation device for long bones of extremities, which can add antibiotics by itself, and belongs to the technical field of orthopedic medical devices. Background technique [0002] Postoperative infection in orthopedics has always been a clinical problem. Its pathogenesis is complex and its causes are complicated. It is related to various factors such as injury type, surgical complexity, hospital environment, and patient physique. Internal fixation devices are also common. one of the sources of infection. Literature reports: the postoperative infection rate of aseptic orthopedic surgery is about 5%, and it is mainly concentrated in the spine, hip and knee joints and other parts; the infection rate of open injuries ranges from 10% to 20%; deep infection caused by hip replacement , The relevant large literature reports the infection rate is 1.6%-2.5%, and the specialist report is 0.06%. Among the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8061
Inventor 吕红芝宇文培之陈伟侯志勇张奇张英泽
Owner 陈卫
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