RU1792322C - Surgical needle - Google Patents

Abstract

Usage: in medicine with less traumatic suturing of tissues. SUMMARY OF THE INVENTION: the needle has a ligature loop made of nylon 0.15 mm thick and located in an eyelet with a diameter of 0.4 mm. 3 ill.

Description

The invention relates to medical equipment, in particular to surgical needles intended for less traumatic suturing of tissues.

Known surgical needles (catalog Medical instruments, devices, apparatus and equipment, M., 1961, p. 47, volume 2) have disadvantages. Their sections for fixing with the needle holder have a circular cross-section as the entire needle, which makes it difficult to firmly fix the needle in the lips of the needle holder, and the eye for the thread, made in the form of a slot or a closed hole in the proximal part for immersion (charging) of the thread, is its design is traumatic when suturing tissues.

The aim of the invention is to increase the strength of the fixation of the needle by the needle holder, to reduce the invasiveness of tissues when suture material is passed through them.

The goal is achieved in that the needle in the proximal part (at the end opposite the tip) has a square cross-section, with rounded corners, and a small eye is located in the center of the needle in which a thin nylon thread with a diameter of 0.15 mm is placed in the form of a loop.

Figure 1 shows a surgical needle; FIG. 2 is a section aa in FIG. 1; see Z.-section BB in figure 1.

The needle is bent over a radius of 1, of circular or triangular cross section, in the working part (cross-section A-A), with a hole for thin thread 3. The hole is located near the central (middle) part of the needle.

In the proximal part, the needle has a square cross section (see BB) with blunted corners.

The square cross section of the proximal part of the needle ensures the fixation of the needle by the working jaws of the needle holder, preventing its spontaneous displacement during suturing of tissues. Through the eyelet 2, with a diameter of 0.4 mm, a thin synthetic (kapron) thread 3 with a diameter of 0.15 mm is introduced. A thin thread is inserted at both ends from both sides, forming a loop 4. Intended for immersion of suture thread 5, by means of which tissue is sutured.

The use of a thin (small in diameter) eyelet 2, using the formed loop of a thin nylon thread 3 for passing suture thread 5 through sutured tissues, reduces traumatic

Ј

Vj

th

N3

With

tissue suturing. After the kapron thread is passed through the fabric, a suture thread 5 (catgut or silk) is removed with the help of a loop formed. The described surgical needle significantly reduces the invasiveness of tissues when they are sutured, leads to the formation of a channel with a minimum diameter (puncture) for the suture thread, and provides reliable (firm) fixation of the needle in the lips of the needle holder.

The shape of the needle is a surgical needle containing a radius-bent rod made with two sections, the first of which is pointed, and the eye under the second is located

an additional locking element in the form of a loop of synthetic thread, characterized in that, in order to reduce the morbidity by increasing the accuracy of its fixation during sewing and to improve ease of use, the second section of the rod is made under the needle holder and is equipped with a square cross section with rounded ribs, and the eyelet under an additional fixing element is made with a diameter of 0.4 mm and is located in the middle of the rod, while the loop is installed in the eye with a connector and is made of nylon 0.15 mm thick, m the ends of the loop are made loose and oriented in the opposite direction from the tip.

Thebes /

Fie. 2

Editor

Compiled by M. Frost Tehred M. Morgenthal

Fig.Z

Proofreader M. MakSimishinets