SU844002A1 - Device for intracavtary diathermocoagulation - Google Patents

Description

one

The invention relates to medical technology and can be used for therapeutic purposes.

A device for intracavitary diathermocoagulation is known, comprising a probe made in the form of an elastic tube with an electrode at the distal end and a handle at the proximal end 1.

However, this device does not allow for the diathermocoagulation of the wall of the tubercular cavern near the drainage cavity of the bronchus.

The aim of the invention is to conduct the diathermocoagulation of the wall of the tubercular cavity in the vicinity of the drainage cavity of the bronchus.

To achieve this goal, a device for intracavitary diathermocoagulation, containing a probe made in the form of an elastic tube with an electrode at the distal end and a handle at the proximal end, is provided with a mandrel with a contact element in its distal part, while the mandrel is made of insulating material and installed can be moved in the probe, and the contact element is connected to the conductors, in addition, along the inner wall of the probe is placed a conductor made of steel spring

the wire, and the probe handle has a spring-loaded clamp of mandrel rotation.

FIG. 1 shows a device for

intracavitary diathermocoagulation, general view; in fig. 2 - the same in the working

condition; in fig. 3 - section A-A of FIG. one.

The device contains a probe 1, made of a dielectric in the form of an elastic tube, a handle 2. At the distal end of the probe 1 an electrode 3 is installed, which has an oval shape. Electrode 3 is connected to a conductor 4 extending along the inner wall of probe 1.

The latter is made of steel spring wire capable of bending the distal portion of probe 1. The surface of the conductor 4 is silver plated and has no insulation. Inside probe 1 is mandrel 5, made of dielectric material. At the dalsal end of mandrel 5 there is a silvered contact 6 of semicircular shape, connected by conductors 7, passing inside mandrel 5 with a single pole plug 8, designed to connect electrode 3 to the apparatus for high-frequency diathermocoagulation (not shown in Fig.). Handle 9 is used to control mandrel 5, which has an external knurling.

The side opening 10 in the wall of probe 1 is intended for depressurization of probe 1, which is necessary for the free movement of mandrel 5 within probe 1.

On the handle 2 there is a lock of rotation of the mandrel 5 around its axis. The retainer consists of a sleeve 11 and a washer 12 fixed inside the sleeve 11 by means of a threaded connection. A spiral spring 13 located inside the latch body, resting on a nut 14 mounted on the end of the handle 2, presses the sleeve 11 to the surface of the handle 2, where there are two holes 15 and 16 located at diametrically opposite points. A pin 17 may be inserted into these holes, mounted on the end side of the sleeve 11. On the outer surface of mandrel 5 there is a longitudinal groove 18, which includes pin 19; mounted on washer 12. If mandrel 5 is partially extended from probe 1, then the distal part of probe 1 will be bent under the action of the spring force of the conductor 4.

To rotate the mandrel 5 around its axis by 180 °, it is necessary to press the lock case from the handle 2 and turn it until the pin 17 enters the hole 16 (as shown in Fig. 2). In this position, the contact element 6 is connected to the conductor 4, and the electrode 3 will be connected to the plug 8.

In order to prevent the extraction of mandrel 5 from probe 1 and the possible injury of the staff and the patient by electric current, the longitudinal groove 18 has a step 20.

To allow access to the inner channel of probe 1, for example, to sterilize it, the mandrel 5 can be completely removed from probe 1 after the operation. For this, the step 20 is connected to a groove 21 located on the outer side of the mandrel 5 and deployed in relation to the groove 18 by 90 °.

The device works as follows.

After transthoracal puncture of the cavity, a radiopaque substance is introduced into the cavity through the trocar canal, and the position of the draining bronchus is determined under fluoroscopy control. Next, a device is inserted into the cavity through the trocar tube. Moreover, mandrin 5 is in the position shown in FIG. 1. A plug 8 is connected to an apparatus for high-frequency diathermocoagulation, for example, an EN 57 M. An indifferent electrode is fixed on the surface of the patient's body. Under the control of fluoroscopy put mandrin

5 to such a level that when the probe 1 is bent, the electrode 3 approaches the wall surface of the cavity near the drainage cavity of the bronchus. After that, the stylet is rotated by 180 °, the apparatus for high-frequency diathermococoagulation is turned on, and the electrode 3 is pressed against the surface of the cavity near the cavity-draining bronchus. As a result of diathermocoagulation, the coagulation and welding of the biological

tissue and, therefore, the lumen of the drainage cavity of the bronchus from the side of the cavity is blocked.

The proposed device allows the diathermocoagulation of the wall of the tubercular cavity in the vicinity of the drainage cavity of the bronchus.

Claims (1)

Invention Formula A device for intracavitary diathermocoagulation, comprising a probe made of a dielectric in the form of an elastic tube with an electrode at the distal end and a handle at the proximal end, characterized in that it is equipped with a mandrel contact element in its distal part, while the mandrel is made of insulating material and is mounted for movement in the probe, and the contact element is connected to the conductors, to OMe order along the inner wall disposed conductive probe of a steel spring wire, and the handle of the probe has a spring loaded latch mandrel rotation. Sources of information taken into account in the examination 1. USSR author's certificate No. 466022, cl. A 6S 3/04, 1972.