UA64889A - Tool for thyroid biopsy - Google Patents

Abstract

The tool for thyroid biopsy contains the metallic needle with the mandrins 0.2 cm in diameter with two openings at the end and two lateral openings, all the openings being 0.6 mm in diameter. There are two rings at the base of the needle.

Description

The invention relates to medicine, namely to surgery, and can be used to diagnose patients with a thyroid neoplasm (Sh3Z).

The leading place in the diagnosis of diseases belongs to the data of histological and cytological research. A puncture biopsy of organs is widely used as a diagnostic method. Lifetime histological and cytological examination of organ tissue punctures opens up wide opportunities for marking the nature and degree of organ injury, the dynamics of pathological changes, and the effectiveness of treatment. Conducting a puncture biopsy during the operation allows to clarify the diagnosis, which often determines the subsequent tactics of the surgeon.

Next time, ordinary needles of the Mongini and Wim Silverman types are used for biopsy (acting on the principle of aspiration) 11. A well-known tool for medical and diagnostic puncture was proposed by A.Yu. Hlyvenko (21. The needle consists of 2 needles of different diameters - puncture and container. Puncture needle. The length of which varies from b to 10 cm (depending on the depth of the location of the investigated material of the object). The outer diameter is 0.33 cm, the needle is sharpened at an angle of 45 degrees. The container part, which is included in the needle needle, is formed from a specially processed air needle of the filter used for blood transfusion, its length and outer diameter correspond to the length and inner diameter of the puncture needle, the sting is surrounded at an angle of 90 degrees. On the inner part of the end of this needle, there is a screw thread along the ISM, which is applied with a tap of the appropriate diameter. When performing a puncture with with the use of such a needle, the biopsy material, having entered its lumen, is squeezed and screwed I into the lumen of its container part and is held there when the needle is pulled out.

The closest to the claimed tool, selected as a prototype, is a biopsy needle of the "guillotine" type, produced by the company "MO TESN" |Z), which includes a metal needle with a diameter of 0.2 cm, an inner diameter of 0.9 mm, a length of 12.5 cm . The needle tip has a 2 mm notch, through which the tissue of the punctured organ is obtained with the help of a mandrel.

The disadvantage of existing needles is the large traumatism caused not so much by the diameter of the needle, but by the need to perform multiple punctures in order to obtain an informative puncture, which appears to be too negative a moment in the case of malignant neoplasms.

The invention is based on the task of obtaining the greatest informativeness of the punctuated organ with minimal traumatism.

The task is performed as follows: a new formation is punctured with the proposed needle, which includes a metal needle with a diameter of 0.2 cm, at the end of the needle there are two holes of 0.5 mm in diameter, two holes

Oh, bmm in diameter on the sides of the needle with mandrels, two rings on the base of the needle. An aspiration biopsy is performed with the help of a piston. Next, without removing the needles with mandrels with hooks at the end, a puncture biopsy is performed on both sides of the injection site in the neoplasm. Thus, with the help of one injection, 2 types of biopsy are performed: aspiration and puncture, which increases the diagnostic value with a significantly reduced number of injuries.

The tool consists (see drawing) of a needle (1) 12.5 cm long, with an outer diameter of 2 mm, on the side of which there are two finger rings (2). The point of the needle has the appearance of a spear, on the side surface of which there are two holes (3) with a diameter of O0.bmm with edges sharpened at an angle of 45 degrees and cutting side parts. Stepping back by 2mm from the above, there are two holes with a diameter of 0.bmm, which, like the first, are connected to internal hollow tubes. Moreover, mandrels with hooks are inserted into the tender one, with the help of which a puncture biopsy of the tissue of the neoplasm is performed. In the middle tube there is a precisely fitted piston (P) with the help of which aspiration biopsy is performed.

Thus, with the help of the proposed tool, two types of biopsy are performed at once: aspiration and puncture, with minimal trauma, as there is no need to puncture the neoplasm several times.

In practice, the tool was used on 25 patients, during the puncture of which a sufficient amount of material was simultaneously obtained, which allows to verify the nature of the neoplasm.

Sources of information 1. Avetisyan I.L., Gulchyi N.V. et al. Preoperative and intraoperative diagnosis of surgical diseases of the thyroid gland: morphological aspect // Klin. Surgery.-1999.-Me5.-S.2527. 2. Hlyvenko A.Yu. Universal medical and diagnostic needle // Klin. Surgery. - 2001.-Me12.-S34. 3. Kochetov G.P., Rozhkova N.I., Chikordin 9.G. A special instrument! for invasive interventions on the mammary gland // Mendtehnika.-2001.-Mo2.-S.1822.

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Claims (1)

A thyroid biopsy instrument comprising a 0.2 cm diameter metal needle, characterized in that the needle has two 0.6 mm diameter holes at the tip, two 0.6 mm diameter holes on the sides of the needle with mandrels, two rings on at the base of the needle.