RU2436529C1 - Atraumatic medical needle and method of surgical suture application with claimed needle - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment and can be used in combined hernioplasty and other cases where fixation of large mesh endoprostheses is required. Atraumatic medical needle contains curved rod with sharpened and blunt ends and thread. Both ends of thread are fixed inside rod and form a loop. Thread ends before entrance to blunt end are connected to each other into one thread and form in the point of connection the second loop. When surgical suture is applied by means of claimed needle, number of separate interrupted sutures with any number of needles required for operation is reduced to one, finishing the operation.

EFFECT: reduction of labour consumption, time for operation performance and amount of suture material left in wound.

6 cl, 2 dwg

Description

The invention relates to medical equipment, namely to atraumatic needles and a method for applying surgical sutures with the proposed needle. The invention is mainly in demand in combined hernioplasty and other cases where fixation of large mesh endoprostheses is required.

Known atraumatic medical needle containing a curved rod with a sharp and blunt end and a thread fixed in the rod from the blunt end (see Monofil needle TU 9398-003-56257679-2006 manufactured by Linteks, St. Petersburg).

There is a known method of suturing with a known needle on an surgical wound, which involves tying several separate nodal sutures on it, each of which is a loop and a simple or complex knot (see I.V. Sleptsov, R.A. Chernikov. Nodules in surgery. St. Petersburg, Salit-Medkniga, 2000, p. 40).

This method of suturing a surgical wound with a known needle is reliable, since when untying one node other nodes will take the burden, but it is laborious and lengthens the operation time. Or the thread is fixed at the beginning and end of the surgical wound with separate interrupted sutures, and in the middle they are sewn continuously (see I.V. Sleptsov, R.A. Chernikov. Knots in surgery. St. Petersburg, Salit-Medkniga, 2000, p. .154). The disadvantage of applying a surgical suture with such a needle: if one knot is untied, the entire thread will weaken.

A medical atraumatic needle is known, the thread of which has the shape of a loop used both in ophthalmology (for example, an atraumatic ophthalmic needle IAO "Kontur" TU 9432-001-24350176-2002, OJSC "Kontur", Cheboksary), and in general surgery. Closest to the claimed one is an atraumatic medical loop needle used in general surgery (see Monosorb-Loop needle TU 9398-003-56257679-2006 manufactured by Linteks OJSC, St. Petersburg).

A method of applying a surgical suture with a needle-loop involves tightening the first node “the rod into its loop” on the surgical wound, then continuous sewing with tightening a separate nodal suture at the end of the surgical wound (see Monosorb-Loop needle TU 9398-003-56257679-2006 manufactured by JSC “Linteks”, St. Petersburg).

The disadvantage of the method of applying a surgical suture with a needle loop is that at the end of each thread it is required to tie a separate nodal suture, since the length of the thread is not always sufficient for the entire operation. So, for example, if you want to fix large mesh endoprostheses, then there can be quite a lot of such separate nodal joints.

The task is to reduce the complexity, time of operation and the amount of suture left in the operated wound.

The technical result is achieved in that the number of individual nodal joints for any number of needles required for the operation is reduced to one that completes the operation.

The problem is solved in that in an atraumatic medical needle containing a curved rod with pointed and obtuse ends and a thread, both ends of which are fixed inside the rod, forming a loop, according to the invention, the ends of the thread before entering the blunt end are interconnected into one thread, forming at the junction of the second loop.

The problem is also solved by the fact that the length of the connected ends of the thread is 3-10 mm

The task is also achieved by a method of applying a surgical suture with an atraumatic medical needle, including tightening the first node “the rod into its loop” on the surgical wound, then continuous sewing with tightening a separate nodal suture at the end of the surgical wound, in which, according to the invention, at the end of the first needle thread take the next needle, pierce the tissue and the second loop of the previous needle with its rod, then tighten the node “the rod of the next needle into its first loop”, then continuously sew until the end of the thread leduyuschey needle and so on until completion of the surgical suture, wherein the needle rod each preceding cut.

The task is also achieved by cutting the rod of the previous needle to puncture its second loop with the rod of the next needle. The task is also achieved by cutting off the rod of the previous needle after piercing its second loop with the rod of the next needle.

The task is also achieved by cutting off the rod of the previous needle after tightening the node "rod of the next needle in its first loop"

In Fig.1 shows a diagram of the needle-loop of the prototype.

Figure 2 shows a diagram of the inventive needle - double loop.

The inventive needle of figure 2 consists of a curved rod 1 with sharp 2 and blunt 3 ends and thread 4 with the first loop 5. In the rod 1, both ends of the thread 4 are fixed by any known method, for example, in the sharp end 2 by plastic deformation or in a blunt end 3 by pressing, chapping, etc. Previously, before fixing in the rod 1, both ends of the thread 4 are connected into one thread 6 in any way, for example, woven, welded or glued in a reliable manner for medical purposes. Moreover, at the junction of the ends of the thread 4, a second loop 7 is formed. Thus, the inventive needle can be called a “needle-double loop”. The size of the connected section 6 is determined based on the condition that when cutting the connected section, the second loop 7 does not open. Optimally this is 3-10 mm.

Work the inventive needle as follows. On the operating wound, tighten the first node by threading the rod 1 into the loop 5, then continuous sewing, at the end of the thread of the first needle take the next needle, pierce the tissue with the rod and the second loop 7 of the first (previous) needle, then tighten the node by threading the rod 1 of the next needle into its first loop 5, then continuously sew until the end of the thread of the next needle and so on until the end of the surgical suture, while the rod of each previous needle is cut off. At the end, they tighten the only separate nodal suture that completes the operation. The rod 3 of the previous needle can be cut to puncture its second loop 7 with the rod 3 of the next needle, after piercing its second loop 7 with the rod 3 of the next needle, or after tightening the assembly, threading the rod 3 of the next needle into its first loop 5.

The positive effect is obvious. For example, when applying a surgical suture with fixation of the mesh endoprosthesis, for example, with seven needles, the time for tying six separate nodal sutures is reduced, which is about 10 minutes, which is important for both the operator and the patient. In addition, the amount of suture material left in the wound is reduced by the amount of material that would have gone, as in our example, by six separate interrupted sutures, which is very important for the patient. At the same time, all the advantages of the prototype needle-loop and the method of suturing with a needle-loop with the first knotless fixing of the “core into the loop” thread and suturing in two threads are saved, which reduces the operation time, increases the convenience of this stage of the operation, significantly reduces the likelihood of ligature fistula formation .

Claims (6)

1. Medical atraumatic needle, containing a curved rod with pointed and blunt ends and a thread, both ends of which are fixed inside the rod, forming a loop, characterized in that the ends of the thread before entering the blunt end are interconnected into one thread, forming a second a loop. 2. The needle according to claim 1, characterized in that the length of the connected ends of the thread is 3-10 mm 3. A method of applying a surgical suture to an atraumatic medical needle, including tightening the first node on the surgical wound by pulling the rod into the needle loop, then continuous sewing with tightening a separate nodal suture at the end of the surgical wound, characterized in that at the end of the first needle thread they take the second needle, it tissue and the second loop of the first needle are pierced with a rod, then the knot is tightened by threading the second needle shaft into its first loop, then they are continuously sewn until the end of the second needle thread and so on until the surgeons complete seam, while the rod of each previous needle is cut off. 4. The method according to claim 3, characterized in that the rod of the previous needle is cut off before the second loop is pierced with the rod of the next needle. 5. The method according to claim 3, characterized in that the rod of the previous needle is cut off after puncture of its second loop with the rod of the next needle. 6. The method according to claim 3, characterized in that the rod of the previous needle is cut off after tightening the assembly formed by threading the rod of the next needle into its first loop.

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