RU115640U1 - DEVICE FOR INTRAOPERATIVE LABELING OF INTERDOMBINAL DISCS - Google Patents

Abstract

A device for intraoperative marking of intervertebral discs, characterized in that the marking on the X-ray of a damaged or diseased disc is achieved by the presence of a metal needle bent in the form of a bayonet in it.

Description

The utility model relates to the field of medicine and medical surgical equipment, namely to devices designed for marking intervertebral discs during anterior interbody fusion surgery.

The purpose of the utility model is to accurately determine the interested intervertebral disc during anterior interbody fusion surgery for injuries and diseases of the spinal column.

In the surgical treatment of patients with injuries (fractures, dislocations and fracture-dislocations) or diseases (osteochondrosis, ankylosing spondylitis) of the spinal column, an operation of the anterior interbody fusion is used. The operation involves removing the intervertebral disc and replacing it with an implant from the bone or, for example, tipan nickelide. One of the prerequisites for the operation is an accurate x-ray determination of the intervertebral disc damaged or destroyed as a result of the disease, which must be partially or completely removed [1-9]. In order not to make a mistake in choosing an interested intervertebral disc during surgery, doctors widely use ordinary injection needles to mark intervertebral discs. For this, an injection needle is used, which is installed in the place of the intervertebral disk concerned, after which the anterior longitudinal ligament and intervertebral disk are punctured, and the needle is inserted into the disk parallel to the end plates of the vertebral bodies to an arbitrary length. The danger of such a marker administration technique is the possibility of a needle entering the spinal cord.

The medical industry of our country does not produce special devices designed for interbody fusion surgery.

The objective of the utility model, which serves as a marker, is an accurate and safe for the patient determination by an x-ray taken in a lateral projection, damaged or destroyed as a result of an intervertebral disc disease. At the same time, it is important that the methodology for determining the intervertebral disc is minimally traumatic and most effective in the time spent on its implementation.

The problem is solved by using a technical device made of stainless steel. The device 1 is made in the form of a round bayonet-like curved spoke, and the end of the 2 spokes inserted into the intervertebral disc is 1 cm less than the longitudinal size of the intervertebral disc. The presence of a needle bent in the form of a bayonet does not allow, due to its emphasis on the front surface of the vertebral body, to penetrate deep into the intervertebral disc, which eliminates the risk of penetration into the lumen of the spinal canal.

Figure 1 shows a General view of a utility model.

A utility model is used (for example, on the cervical spine) as follows. The median incision reveals the front surface of the cervical vertebrae. The intervertebral discs into which bayonet-shaped curved spokes are pierced are determined by visual and palpation methods. The presence of a spoke bayonet does not allow, due to its emphasis on the front surface of the vertebral body, deep penetration into the intervertebral disc. Before the operation, the radiograph is determined in lateral projection, the length of the injected portion of the spokes in the intervertebral disc. An X-ray is taken of the cervical spine in a lateral projection and, by the presence of a spoke located in the interested disk, diagnostics are performed. Having identified a damaged (or diseased) intervertebral disc using a marker, the needle is removed, and the operation proceeds to its next stage.

As a result of the application of the proposed utility model on the operating table, an error has been eliminated in determining the damaged or diseased intervertebral disc.

Information sources:

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Claims (1)

A device for intraoperative marking of intervertebral discs, characterized in that the marking on the radiograph of a damaged or diseased disc is achieved by the presence of a metal spoke bent in the form of a bayonet.