Detachable sternal bone setter

Abstract

The invention relates to medical treatment instruments, in particular to a detachable sternum connector comprising a left side plate and a right side plate. Both the left side plate and the right side plate are provided with holding arms; a jointing groove and a jointing tongue are respectively arranged on the left side plate and the right side plate and are jointed to form a single sternum connector unit. The jointing groove and the jointing tongue are arranged to facilitate quick combination and installation of the sternum connector. The single sternum connector units can be connected in groups through brads or studs, and the numbers of the single sternum connector units can be increased or decreased according to specific fixation positions of patients. After being fastened and fixed with each other, the jointing groove and the jointing tongue are plugged with fixing pins along fixing pin holes formed on the left side plate and the right side plate, so that connection strength is improved greatly.

Description

technical field [0001] The invention relates to a medical device, in particular to a detachable sternal bone setter. technical background [0002] At present, techniques such as steel wire binding, Kirschner wire fixation, steel plate fixation and synthetic resin fixation are commonly used in thoracic surgery. During thoracic surgery, due to the need for patient treatment, it is sometimes necessary to incise the sternum along the midline. After the operation is completed, the sternum is bound with stainless steel wire or fixed with Kirschner wire. When fixing, punch holes on both sides of the longitudinal incision in the middle of the sternum, thread steel wires in the holes, and tie the steel wires after the sternum is closed. The sternum is a flat bone that is easy to shift, and it is difficult to control the binding force of the wire due to the tension of the lung's respiration. If the binding is too loose, it will not achieve the effect of fixing. If the binding is too...

AI Technical Summary

Problems solved by technology

The sternum is a flat bone, which is easy to shift, and it is difficult to control the binding strength of the wire due to the tension of lung respiration

If the binding is too loose, it will not achieve the effect of fixing. If the binding is too tight, the steel wire will easily break. The longitudinal steel wire will easily tear the sternum. The steel wire is not easy to remove, and may damage vital organs under the sternum, leading to medical accidents

The plate fixation is relatively reliable, but drilling is required, which can easily damage the retrosternal organs, cause electrolytic reactions, and require a second operation to remove the plate; synthetic resin is absorbable and does not require a second operation to remove the fixation, but it needs to be fixed. Inserted into the bone marrow cavity, prone to infection, and the fixation effect is not firm

The above-mentioned surgical operation is more difficult when fixed, and the operation time is longer. More importantly, it is difficult to remove after healing.

[0003] In view of the above technical problems, the applicant has applied for and disclosed a memory alloy sternal bone plate (application number: 200820114940.3, application date: May 8, 2008, authorization announcement date: April 8, 2009), which has greatly improved Fixing strength and connection stability, but the above-mentioned patents require cold application of the bone plate when disassembling, and use special pliers with a pry bar to pry the claws one by one. The disassembly process is cumbersome and complicated, and requires medical staff to have certain operating experience to successfully disassemble the bone plate

In an emergency, some critical cases need to be rescued by opening the chest. A little careless operation will bring harm to the patient. At the same time, the disassembly process is cumbersome and time-consuming. There is a certain risk, and serious cases will directly endanger the life of the patient.

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