SU820827A1 - Surgical sutural material of loop-shaped structure and method of manufacturing same - Google Patents

Description

The invention relates to the production of medical products for medical purposes and relates to the manufacture of surgical suture material, used primarily for intercostal and pectoral sutures.

On textile equipment, surgical suture materials are mainly produced by torsion, wrapping and weaving. In the process of weaving, suture material takes the form of a tube, which does not exclude the possibility of accumulation of exudate in it and further suppuration. Suture material obtained by torsion or rolling has a tendency to torsion due to the unbalanced structure (formation of sucruti ^). In addition, woven, twisted and wrapped suture materials, due to their stiffness, have low knot strength, which requires additional processing to / increase strength, for example, by applying special polymer coatings to the suture material [1] and [2].

The closest in technical essence is the surgical suture material of a loop structure (a chain chain is made on a sewing tambour machine). Using a tambour sewing machine allows you to get only a tambour chain, which in structure corresponds to the warp knit chain having closed loops [ZX

Buttonhole suture is well knotted, as it is soft compared to twisted threads. At the same time, suture material in the form of a chain chain has low tensile strength, twists along the axis and has a rough surface formed by interloop transitions.

The purpose of the invention is to improve the quality of suture material.

The goal is achieved by the fact that the suture material of the loop structure made of bioinert thread contains at least one additional bioinert thread, while the main and additional threads form a tricot warp knit with intersecting broaches. 25 In addition, additional threads may form platen stitches or weft loops.

Moreover, the material can be made in the form of a spiral twisted 30 we.

The suture material of the loop structure is knitted on a warp knitting machine with at least two comb threads, each of which is counter-laid by interlacing the tights or its derivatives. B. it is possible to use an additional thread from the third comb, which is knitted by interlacing leotards with masonry parallel to the masonry of one of the main threads. The thread from the third comb can be weaved into the loops of the trick weave. Upon removal from the machine, the flat material connected on 5-20 needles is pulled until it is twisted into one spiral. On the outer coil of the spiral, the material may be coated with polymer. It is possible to produce material on one or two-loop warp knitting machines.

Figure 1 shows a graphical record of suture material associated with the interweaving of leotards with closed loops in the oncoming masonry of two combs; figure 2 is a graphical record of suture material associated with the interweaving of leotards in the oncoming laying of two combs, the threads of one of which are connected in open loops; figure 3 is a graphical record of suture material from the threads of three combs, two of which carry out parallel laying; figure 4 is the same as in figure 1 with a vertical weft thread; figure 5 is the same as in figure 1 with a curling weft; figure 6 is a graphical record of suture material associated with the interweaving of leotard with two combs; Fig.7 is a graphic recording of suture material associated with the interweaving of tights and cloth with three combs on five needles; on Fig is a graphical record of suture material associated with the interweaving of tights and cloth with four combs on four needles; figure 9 is a graphical record of suture material associated with the interweaving of leotards-charm. two combs on four needles; figure 10 is a drawing of suture material in cross section for removal from the machine; figure 11 pulling material equalization; in Fig.12 the suture material - after applying the polymer coating; . in FIG. 13 the same, in a compressed state.

On the warp knitting machine, threads 1 and 2 of two combs (FIGS. 1 and 2) are knitted with needles 3 and 4 with open or closed loops, and counter combs are laid together by weaving tights or its derivatives (cloth, charm, etc. ). When knitting, it is possible to use an additional thread 5 from the third comb, which is knitted with a tricot with masonry parallel to the masonry of thread 1 (Fig. 3). The thread to the warp knitting is the same, after in the longitudinal - the transverse knuckle, ce50 can be tucked into the 'ears of the comb with threads 1. An additional thread 5 can be fixed in loops and various weft webs (Figs. 4 and 5). Other options for suture structures are shown in FIG. 6,7,8 and 9. So, (Fig. 8) the suture material is connected from two main threads 1 and 2 by interlacing of tricot and two additional threads 6 and 7, performing counter masonry also by interlacing of tricot. It is advisable to knit suture material of increased strength on .5-20 needles. The edges of such material 8 are twisted from two sides 9 and 10 (figure 10). Upon removal from the machine, the material is pulled out until it is twisted into one spiral 11, (Fig. 11), after which the material can be coated with polymer 12 along the outer coil-spiral (Fig. 12). The material twisted into a spiral 11 and coated with polymer 12 is easily removed in cross section (Fig. 13), which, after tying up a surgical unit, precludes its sliding or dissolution.

The suture material was knitted on a warp knitting machine OV-8, class 26, from dacron yarn No. 200 and thermally stabilized. '

The method allows to obtain suture material with high tensile strength, which is soft, which contributes to high-quality knotting.

On one warp knitting machine with high productivity, a large amount of suture material can be obtained simultaneously. So, on a machine with 1,500 needles in a needle bed, when knitting one surgical thread on five needles, 300 ends of surgical threads can be obtained simultaneously.

Claims (4)

(54). SURGICAL SUTIONAL MATERIAL OF THE CUTTING STRUCTURE AND METHOD OF ITS MANUFACTURING Suture material of the looped structure in the basics of an atomic machine of at least two crests of each of which is carried out by stacked stitching by tricot weaving or its prod. It is possible to use an additional yarn with a third comb, which is tied together with a tricot with masonry, parallel to the masonry of one of the main yarns. The thread from the third comb can be laid. weft in loops of tric intertwining. According to the machine, the flat material, bound on 5–20 needles, is pulled out before twisting into one spiral. On the outer turn of the spiral material can be coated with polymer. It is possible to manufacture the material on one or two-base bases of hall machines. Fig. 1 shows a graphical recording of the suture material connected by weaving tricot-tricot with closed loops with counter laying of two combs in Fig. 2 - a graphical recording of the suture material connected by interlacing tricot-knitting fabric with counter-laying two combs, the threads of one of which are connected to the open tabs in FIG. 3 — a graphic recording of the suture material from the threads of three combs, two of which carry out parallel laying in FIG. 4 — the same as in FIG. 1 with the vertical weft thread in FIG. 5, the same, which is in FIG. 1 with a blanket weft) on ig.b - graphic recording of suture material connected by interlacing tricot cloth with two dies} in Fig. 7 - graphic recording of suture material connected by interlacing tricot cloth with three / h dies on five needles in Fig.8 - graphic recording suture material connected by weaving tricot-cloth with four dies on four needles; Fig. 9 is a graphical recording of the suture material connected by weaving tricot-charm. with two combs on four needles; FIG. 10 shows a drawing of a suture in cross-sectional view from the base of the die machine; FIG. 11 - the same, after squeezing the material in the longitudinal direction j in FIG. 12 is a cross-sectional view of the suture material — the film is applied by a polymer coating; . 13, in the compressed state. On the basis of a stitching machine, threads 1 and 2 of two combs (Figures 1 and 2) are threaded on needles 3 and 4, knitwear with open or closed loops, in this case, combing of tights or its derivatives (cloth, charm and etc.). In addition, it is possible to use an additional thread 5 from the third comb, which is used in tights with masonry, parallel laying of thread 1 (fig. 3). The thread 5 can be threaded into the comb ears with the thread 1. Additional thread 5 can be fixed in loops and various weft weaves (Figures 4 and 5). Other variants of suture structures are shown in FIG. 6,7,8 and 9. So, (Fig. 8), the suture material is made up of two main threads 1 and 2 by interlacing tricot-cloth and two additional threads b and 7, which carry out counter-laying also by interlacing tricot-cloth. The suture material of increased strength is advisable to use 5–20 needles. The edges of such material 8 are twisted on both sides 9 and 1C (Fig. 10). As the machine is removed from the machine, the material is pulled out to twist it into one helix 11, (FIG. 11), after which the material can be coated with polymer 12 along the outer coil — helix (FIG. 12). The material twisted into a spiral 11 and coated with polymer 12 can be easily removed in cross section (Fig. 13), which, after tying up the surgical unit, prevents it from slipping or disbanding. The suture material was connected on the basis of a class 26 OV-8 dividing machine made of mylar yarn No. 200 and thermally stabilized. The method makes it possible to obtain a suture material with high tensile strength, which is soft, which contributes to high quality knotting. On one basis, a high-performance grouting machine can simultaneously produce a large amount of seam material. So, on a machine that has 1500 needles in a needle bed, while one surgical suture is being used on five needles, one can simultaneously receive 300 ends of surgical sutures. Claims. 1. Surgical suture material with a looped structure, made of a bioinert thread, characterized in that, in order to improve its quality, it contains at least one additional bioinert thread, with the main and additional threads forming a tricot basis of interlacing with overlapping gaps. 2. Material on. Claim 1, characterized in that the additional iti form plated loops. 3. Material according to claim 1, characterized in that one of the additional threads is fixed in loops in the form of a vertical weft. 4. Material on PP1, 2 and 3, which is attributed to the fact that it is made in the form of a coiled spiral.