SU1519656A1 - Needle for puncture biopsy - Google Patents

Abstract

This invention relates to medicine, in particular to a medical instrument. The goal is to obtain intact tissue at the fence. The needle for puncture biopsy contains a tube 1 with a pointed working end 2, a series of holes 3 on its side surface and a transition cannula 4 placed at the end opposite to the worker, the holes are longitudinally along the axis of the needle, have a segmented shape, and the opposite edges of the holes are twisted along the helix, one of the edges protrudes above the outer surface of the tube and is made cutting, and the other edge is bent in a spiral inside the tube and is a guide. 5 il.

Description

I

(21) 4255902 / 28-14

(22) 03/10/87

(46) 11/07/89. Bul № 41

(71) Donetsk State Medical Institute

(72) To. G. Seleznev. V.V. Shevchenko,

N. P. Trofimenko, V. K- Gusak and V. A. Rusanov

(53) 616-076 (088.8)

(54) NEEDLE FOR PUNKING BIOPSY

(57) The invention relates to medicine, in particular to a medical instrument. The goal is to get intact tissue.

at the fence. The needle for puncture biopsy contains a tube 1 with a pointed working end 2, a series of holes 3 on its side surface and a transition cannula 4 placed at the end opposite to the worker, the holes are longitudinally along the axis of the needle, have a segmented shape, and the opposite edges of the holes are twisted along the helix, one of the edges protrudes above the outer surface of the tube and is made cutting, and the other edge is bent in a spiral towards the inside of the tube and is a guide. 5 il.

and

(L

ate

with

ABOUT)

sd

ABOUT)

The invention relates to the field of medicine, in particular to a medical instrument, and can be used for tissue sampling during a puncture biopsy.

The purpose of the invention is to obtain intact tissues upon collection.

FIG. 1 shows a needle for puncture biopsy, general view; in fig. 2 - the working end of the needle; in fig. 3 is a section A-A in FIG. 2 (the location of the working edges of the segmented hole); in fig. 4 - section B-B in FIG. 2 (the location of the working edges of the segmented opening);

holes, the needle is led to this area. By palpation or radiology, it is determined that the needle passed through the desired tissue site. After testing, the needle 5 is rotated around its axis in the direction of the same name as the cutting edges of the segmented holes. At this point, the tissue is taken into the needle. Three or four turns is enough to take a cloth. The fabric cut by the cutting edges along the guide edges enters the needle. Thereafter, the needle makes a reverse movement, without rotation, with the result that the fabric in the needle is cut off from the rest of the fabric. Spinning needle

ten

in fig. 5 - needle, general view in isometric. 15 in the direction opposite to cutting it from chrome-Needle to hp puncture biopsy, it is removed. Fabrics obtained with a biotube 1 with a pointed working end 2psia are flushed out of the needle lumen with physiology near apertures 3 at its side surface through a transition cannula and transition cannula 4 placed on a sterile glass slide and at the end of a dismountable working glass. Send 20 for cytology.

Using the proposed needle, it is possible to take fabrics only in the area where it is necessary, not trauma to the envelope 3, are made closer to the pointed end 2, but not further than 1.2-1.5 mm from the end, are arranged longitudinally along the needle axis and have a segmented shape..Length of segmented holes 2.5-3 mm.

cursing fabric. The needle is comfortable and easy to use and with certain skills

depending on the consistency of fabrics.

Claims (1)

Invention Formula width not more than 1.5 mm. The opposite 25 provides a high efficiency of the non-hem of the holes twisted in a spiral, with one of the edges 5 protruding above the outer surface of the tube by 0.5-0.6 mm and cutting, while the other edge 6 is bent in a spiral inside the tube by no more than 0.3-0.4 mm, and is the direction of Yu-Hil. The cutting edge of the segmented holes has a one-sided orientation. Use the needle as follows. JQ Needle for biopsy puncture, containing a tube with a pointed working end, a number of holes and its side surface and a transition cannula placed at the end opposite to the worker, in order to get it intact Determining (by palpation, X-ray 35 The openings are located in the region of the tissue or organ, which is longitudinally along the base of the needle, have a segmented tissue, it is necessary to take a tissue for a research-shaped form, and the opposite of it is fixed. The skin in the projection is the false edges of the holes twisted along the spigo of the area to be anesthetized. A forward stitch, one of the edges acts as a random movement, with a slight rotation of the gingival surface of the tube and is made around its axis, in the direction, PROTIVOPO.Go, ,, „“ .. ,, „,. ,, - false cutting edges of the segment-forming, and the other edge is bent in a spiral inside the tube and is a guide. holes, the needle is led to this area. By palpation or radiology, it is determined that the needle passed through the desired tissue site. After control, the needle is rotated around its axis in the same direction as the cutting edges of the segmented holes. At this point, the tissue is taken into the needle. Three or four turns is enough to take a cloth. The fabric cut by the cutting edges along the guide edges enters the needle. Thereafter, the needle makes a reverse movement, without rotation, with the result that the fabric in the needle is cut off from the rest of the fabric. Spinning needle in the direction opposite to cutting the edges, it is removed. Tissue, obtained by bio With the help of the proposed needle, it is possible to take tissue only in the area where it is needed, without trauma to the surrounding tissue. The needle is comfortable and easy to use and with certain skills provides high efficiency depending on the consistency of fabrics. provides high efficiency Invention Formula em high efficiency   .go, ,, „“ .. ,, „,. ,, - and the other edge is bent in a spiral inside the tube and is a guide. In b Phage.} Fig.Ch 5