SU942730A1 - Trochar - Google Patents

Description

(5) TROAKAR

one

The invention relates to medical technology, more specifically to surgical instruments for the treatment of a pathological cavity, for example, a tubercle cavity.

A trocar is known, containing a rod with a pointed working end, fixed in a handle, and a tube of polymer material D 3.

The main disadvantage of the known trocar is the low accuracy of the penetration into the cavity. This is especially acute when the cavity is small and lies deep in the body.

The purpose of the invention is to improve the accuracy of puncture of the pathological cavity.

This goal is achieved by the fact that in a troactor containing a rod with a pointed working end, fixed in a handle, and a tube made of a polymeric material, the handle is made hollow, at the end of which a fluorescent screen with a

A lid, in the cavity of the handle, is placed a fiber-optic focon, the input end of which is in contact with the phosphor of the screen, and the output end enters the connector of the handle.

FIG. 1 shows a trocar, general view, incision; in fig. 2 - the principle of trocar use.

Claims (1)

The trocar contains a steel strut 1, one end of which is sharpened 2 and the other is fixed in handle 3. Rod 1 is equipped with a tube k made of a polymeric material, the end of which has a bevel 5 at the level of the tip 2 str15. 1. At the end of the handle 3, perpendicular to the axis of the rod 1, a fluorescent screen 6 is installed, closed with an opaque and radiolucent cover 7, for example, made of ebonite. Inside the handle 3, there is a fiber-optic fixture 8, the input end of which 9 contacts the phosphor with fluorescent screen 6-, and the output end 10 enters the connector 11 of the handle. The trocar is used as follows. Before the operation, a flexible fiber-optic fiber 12 is connected to the trocar connector 11, the output end of which is adjacent to the optical window of the vidicon 13 connected to the TV 1, Patient 15 is placed on a tuberculous cavity 16 on a radiographic stand. The x-ray tube 18 is switched on in fluoroscopy mode and the trocar is oriented so that on the screen 19 of TV 1 there is a contour of 20 tuberculosis 16. The core 1 of trocar is directed along the x-ray beam 21, while on the screen 19 of TV 1+ rod 1 is depicted by point 22. By longitudinal displacement of rod 1, tissue dissection is performed, tip 2 of proacar is applied to the wall of the tuberculous cavity 16 and punctured. The monitoring of the transthoracic puncture of the tuberculosis cavern 16 is carried out on the screen 19 of the television set 1. After the transthoracic puncture of the tuberculosis cavern the steel rod 1 of the trocar is removed from the body, and the polymer tube k remains in the chamber for the period of treatment. The powdered drug is sprayed into the cavity through the polymer tube A using a special device containing a container for the medicinal powder connected to a source of air pressure and a spray tube. If the doctor inserts the instrument correctly and a dotted image of the trocar rod inside the cavity of the cavity is observed on the TV screen, the tip of the instrument enters the cavity. Improving the accuracy of puncture of the pathological cavity eliminates unnecessary injuries and speeds up the process of operation. Claims A trocar comprising a rod with a pointed working end fixed in a handle and a tube made of a polymeric material, characterized in that, in order to improve the puncture accuracy of the pathological cavity, the handle is made hollow, on the end of which a fluorescent shield with a lid is mounted, A fiber-optic focon is placed in the cavity of the handle, the input end of which is in contact with the screen phosphor, and the output end enters the handle connector. Sources of information taken into account during the examination 1. Medical instruments. Catalog TSBNTI Ministry of Medical Industry, Volume 1 ,, 1973