RU96753U1 - PUNCH NEEDLE FOR DESTRUCTION OF BENEFITAL THYROID NODES - Google Patents

Abstract

 1. A puncture needle for the destruction of benign nodes of the thyroid gland, comprising a body, base and mandrin, characterized in that a lateral cutout is made in its lower part, and a horse is placed inside the body. ! 2. The puncture needle according to claim 1, characterized in that the casing and the horse are equipped with a graduation in mm. ! 3. The puncture needle according to claim 1, characterized in that in the upper part of the needle body there is an indicator showing the location of the cutout on the lower part.

Description

The utility model relates to the field of medicine, in particular, to methods of minimally invasive treatment of benign thyroid volume formations, and can be used as an alternative to surgical intervention in patients with colloid (benign) thyroid glands, accompanied by symptoms of neck compression and / or autonomic function node tissue with the development of thyrotoxicosis.

Currently, puncture needles (PI) of various designs are used for biomaterial puncture, depending on the features of the operation. As a rule, such devices contain a metal tube pointed at the end, a cannula, and additional devices to increase its efficiency. In particular, PMs for puncture of fluid formations are known (RU 68312, 2007), containing lateral openings at the proximal end of the needle, a suction, and a spring valve blocking the lateral openings. PI for puncture biopsy has a sharpened edge at the end of the cut, guide grooves and a flexible knife in the form of a loop of thread (RU 10334, 1999), sharpening on a needle (RU 13751, 2000). To improve the intake, PI biomaterials are equipped with a crane to shut off air access to the needle (RU 16643, 2003) or needle clamps in the working position (RU 13314, 2000).

The disadvantages of these devices are, as a rule, their narrow specialization, in particular, insufficient efficiency when used for the destruction of benign thyroid neoplasms using ethanol, in which PI is used primarily not for aspiration of biomaterial, but for introducing a destructive element into the operating area - ethanol.

Currently, for the destruction of benign thyroid nodules using ethanol, as a rule, standard needles for intramuscular injections of 20-23 gauges (Gauge) are used. (Ethanol sclerotherapy (alcohol destruction) of the thyroid glands ... www.islep.ru/science/ethanol/index.htm).

Closest to the claimed device is a standard puncture needle of type 18-21G (TIRONET - all about the thyroid gland www.rusmedserv.com/../th_spec/thyr-3-03-2.html; RU 2291430, 2007) for the destruction by the method I.V.Sleptsova, in the framework of which the effect of ethanol with a needle is to puncture a node with a needle under ultrasound control, inject a 95% solution of ethanol into the tissue of the node through the needle lumen. This needle has a needle body with a base and can be equipped with a mandrin.

However, the use of standard needles for destruction does not allow to achieve the maximum “saturation” of the nodular formation in one injection, which in turn requires repeated puncture, and sometimes multiple. However, for the patient, each injection is painful and unpleasant. In addition, when removing the needle from the node, for an additional injection, sclerosant (ethanol) may enter the parathyroid space, which can lead to serious complications, up to paresis of the recurrent larynx and nerve and necrosis of the thyroid lobe.

The technical problem solved by the authors was the modification of the device, which allows for high-quality and safe impregnation of the unit with a single needle insertion.

The technical result was achieved by performing at the distal end of the needle body on the side of the oblique notch and introducing the gable into the tube of the needle body. At the same time, both the needle and the horse for greater ease of use have a graduation in millimeters. In the upper part of the needle can be additionally equipped with an indicator indicating which side of the needle the cutout is made.

The general scheme of PI is presented in figure 1, where the following notation is used:

1. needle body; 2. base of the needle; 3. cannula; 4. cutout; 5. mandrin;

6. indicator; 7. graduation in mm.

The use of a modified needle is as follows. To carry out sclerotherapy, the patient lies down on his back, his head is thrown back, under the supervision of an ultrasound probe, the surgeon performs a puncture of the nodular formation of the thyroid gland with needle 1, controlling the depth by graduation 7. Having reached the desired position in the node, the horse is inserted into the needle 1, the first is installed under the control of ultrasound destruction point. Mandrin 5 is removed, the syringe with ethanol is attached to cannula 3 and the solution is introduced.

Further, without removing the needle 1, the horse is pulled up to the level of the cutout 4 of the needle and the needle 3 is reintroduced into another part of the assembly.

This model of punctuation needles allows one puncture of the skin, while at the same time, the node is saturated with the help of the piercing in the required volumes. At the same time, the introduction of ethanol into the thyroid gland is simultaneously guaranteed.

Claims (3)

1. A puncture needle for the destruction of benign nodes of the thyroid gland, comprising a body, base and mandrin, characterized in that a lateral cutout is made in its lower part, and a horse is placed inside the body. 2. The puncture needle according to claim 1, characterized in that the casing and the horse are equipped with a graduation in mm. 3. The puncture needle according to claim 1, characterized in that in the upper part of the needle body there is an indicator showing the location of the cutout on the lower part.