CN107714118B

CN107714118B - Operation suture line with wrapping structure

Info

Publication number: CN107714118B
Application number: CN201711114457.5A
Authority: CN
Inventors: 夏淑娇; 夏应钦
Original assignee: Lishui City Peoples Hospital
Current assignee: Lishui City Peoples Hospital
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2020-03-24
Anticipated expiration: 2037-11-13
Also published as: CN107714118A

Abstract

The invention relates to the technical field of surgical sutures, in particular to a surgical suture with a wrapping structure, which comprises a core yarn and a wrapping silk, wherein the core yarn is formed by twisting a plurality of filaments, thick knots are uniformly distributed on the wrapping silk at intervals, and the wrapping silk is wrapped on the core yarn; when the wrapping yarn is straightened, the interval between two adjacent slubs on the wrapping yarn is 4-15mm; when the wrapping silk is wrapped on the core yarn, the interval between two thick knots is 3-13mm along the axial direction of the operation suture line. Compared with the traditional surgical suture, the surgical suture has the advantages of wrapping structure, slipping prevention and low production cost, and can save the knotting time in the surgical suture process and relieve the pain of patients.

Description

Operation suture line with wrapping structure

Technical Field

The invention relates to a surgical suture, in particular to a surgical suture with a wrapping structure.

Background

The traditional operation suture line is a non-absorption line, the wound caused by using the suture line is large in the postoperative suture process, the suture needs to be removed after the wound is healed, the secondary wound is caused, and the recovery time is also long; and the suture line is generally the whole line, need waste a large amount of time to wear the needle and lead wire before the operation, when needing to do the continuous sewing, often need to sew up the back and beat several knots to prevent that the operation suture line from appearing the slip phenomenon. However, due to the limited space of the wound site, this procedure not only adds some complicated steps, but also prolongs the operation time and the anesthesia time, resulting in an increased risk factor for the patient.

In order to reduce knotting and even not knotting and shorten the operation time, the utility model patent with the application number of CN201120279072.6 and the authorization publication number of CN202161363U discloses a tension-reducing operation suture line suitable for a double-ended needle, which is suitable for a double-ended needle structure and comprises a needle body and needle heads distributed at two ends of the needle body. The tension-reducing surgical suture line is formed with barbs with symmetrical structures from the middle to two sides, and the passed tissues bear tension due to the barbs on the surgical suture line during continuous suture, so that the slippage phenomenon of the suture line during continuous suture is prevented. However, the surgical suture is not easy to produce, and because the material of the surgical suture is generally the material of a flexible soft body, the use of the barb structure alone cannot completely replace knotting. Therefore, how to make the surgical suture line not need to be knotted in the suturing process and easy to produce is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a surgical suture having a wrapping structure that does not require knotting during a surgical suture process and is easy to produce.

In order to achieve the purpose, the invention provides the following technical scheme:

an operation suture line with a wrapping structure comprises a core yarn and a wrapping yarn, wherein the core yarn is formed by twisting a plurality of filaments, thick knots are uniformly distributed on the wrapping yarn at intervals, and the wrapping yarn is wrapped on the core yarn; when the wrapping yarn is straightened, the interval between two adjacent slubs on the wrapping yarn is 4-15mm; when the wrapping silk is wrapped on the core yarn, the interval between two thick knots is 3-13mm along the axial direction of the operation suture line.

Preferably, the surface of the plurality of filaments constituting the core yarn is uneven. This can increase the cohesion between the filaments in the core yarn. Meanwhile, the surface of the filament is concave-convex, so that the wrapping filament is not easy to slide when being wrapped on the core yarn, and the interval between adjacent nubs on the surgical suture can be kept stable.

Preferably, the core yarn surface is wrapped with a wrapping filament, and the wrapping filament is wrapped on the core yarn surface in the S direction or the Z direction.

Preferably, the core yarn surface is wrapped with two wrapping filaments, wherein one wrapping filament is wrapped in the S or Z direction on the core yarn surface, and the other wrapping filament is wrapped in the Z or S direction.

Preferably, the average diameter of the non-thick segments in the wrap filaments is from 1/4 to 1/2 of the core yarn diameter.

Preferably, the average diameter of the non-coarse segments in the wrapping filament is a coarse size 1/4-1/3.

Preferably, the wrapping yarn and the filaments constituting the core yarn both comprise degradable materials, so that the stitches do not need to be removed after the operation, and the pain of the patient is relieved.

Preferably, the degradable material in the surgical suture is polyglycolide.

Preferably, the surgical suture line also comprises an anti-inflammatory and hemostatic to facilitate wound healing.

In addition, the invention also provides a preparation method of the surgical suture with the wrapping structure, which comprises the following steps:

(1) preparing filaments: melting a high polymer material for producing core yarns, and preparing filaments by using a melt spinning method, wherein the steps of melting, filtering, metering, spinning, side-blowing cooling, stretching, shaping and winding are included;

(2) producing core yarn: combining and twisting a plurality of filaments prepared in the step (1) to obtain core yarns;

(3) producing wrapping wires: melting a high polymer material for producing wrapping yarns, and preparing heavy denier yarns by using a melt spinning method; then uniformly heating the heavy denier yarn to soften the heavy denier yarn; then the softened heavy denier yarn passes through a cooling device to cool the heavy denier yarn at intervals along the axial direction, and then the drawing step is carried out; due to the effects of uniform heating and interval cooling, the axial stretching unevenness is generated during the stretching of the heavy denier yarn, so that the wrapping yarn with the nubs is obtained; the distance between two adjacent thick knots on the wrapping yarn is 4-15mm by controlling the interval cooling distance and the stretching multiple;

(4) production of surgical sutures: and during wrapping, controlling a wrapping angle to enable the wrapping silk to be spaced by 3-13mm along the axial direction of the surgical suture line when the wrapping silk is wrapped on the core yarn.

Preferably, when the filament is prepared in the step (1), the nanoparticle is added to the melt so that the surface of the filament is formed into a concave-convex shape. This makes it possible to increase the cohesion between filaments when a plurality of filaments are twisted to form a core yarn. Meanwhile, the surface of the filament is concave-convex, so that the wrapping filament is not easy to slide when being wrapped on the core yarn, and the interval between adjacent nubs on the surgical suture can be kept stable.

Preferably, the polymer material used in step (1) and step (3) is a degradable material.

Preferably, the polymer material used in step (1) and step (3) is a degradable material, and the degradable material is polyglycolide.

Preferably, when the surgical suture is produced in the step (4), one wrapping filament is wrapped on the surface of the core yarn in the S direction or the Z direction.

Preferably, in the step (4) of manufacturing the surgical suture, two wrapping filaments are used, one wrapping filament is S-or Z-wrapped on the surface of the core yarn, and the other wrapping filament is Z-or S-wrapped.

Preferably, the average diameter of the non-coarse segments in the control wrap is between 1/4 and 1/3 in the size of the coarse segments when the wrap is produced.

Preferably, the average diameter of the non-thick segments in the produced wrap filaments is 1/4-1/2 of the core yarn diameter.

Preferably, when the filament is prepared in the step (1) and/or the wrapping filament is produced in the step (3), an anti-inflammatory and hemostatic agent is added into the melt to facilitate wound healing.

In addition, the spacing distance between two adjacent nubs on the wrapping yarn can be set according to actual requirements, such as the spacing of sewing needles and the like.

Meanwhile, the invention also provides a suture method of the surgical suture with the wrapping structure, the wound is sutured by the surgical suture with the wrapping structure, when each stitch is sutured, the surface of the surgical suture has the nubs, so that the surgical suture is not easy to slip after passing through the muscle under the action of tension; at this time, the sewing needle passes through the surface of the muscle and penetrates between the wrapping silk and the core yarn on the surface of the nearest operation suture line before the muscle when the sewing needle is sewed, thereby further preventing the operation suture line from slipping, and in this way, the next sewing needle is sewed until the last sewing needle is sewed, and finally knotting is carried out. In the process, due to the wrapping structure of the surgical suture, the needle point of the surgical suture needle is sharp, the surgical suture needle can easily pass through the space between the core yarn and the wrapping silk of the surgical suture, and the surgical suture is slightly tensioned after passing through the space between the core yarn and the wrapping silk, so that the nubs on the surface of the surgical suture can play a role in locking. Therefore, each stitch does not need to be knotted in the whole stitching process, and the stitching time is reduced.

Advantageous effects

Compared with the prior art, the invention has the following beneficial effects: the surgical suture with the wrapping structure does not need to be knotted in the surgical suture process, is easy to produce, can smoothly pass through muscles, is not easy to slip, can smoothly lock each needle by utilizing the wrapping structure and the nubs in the surgical suture during suture, is not easy to slip, saves knotting time in the needle sewing process, can finish the suture process more quickly, and relieves the pain of patients. Meanwhile, the degradable material is adopted to produce the operation suture, so that the suture can be prevented from being removed, and the pain of a patient is further relieved. And the anti-inflammatory hemostatic is added in the surgical suture, which is beneficial to the rapid healing of the wound.

Drawings

FIG. 1 is a schematic view of a surgical suture manufactured by the present invention using a wrapping structure of a wrapping wire.

Reference numerals: 1-core yarn; 2-wrapping the silk; and 3-nubs.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.

An operation suture line with a wrapping structure comprises a core yarn 1 and a wrapping filament 2, wherein the core yarn 1 is formed by twisting a plurality of filaments, thick knots 3 are uniformly distributed at intervals on the wrapping filament 2, and the wrapping filament 2 is wrapped on the core yarn 1; when the wrapping and winding wire 2 is straightened, the interval between two adjacent slubs 3 on the wrapping and winding wire 2 is 4-15mm; when the wrapping filament 2 is wrapped on the core yarn 1, the interval between the two thick sections 3 is 3-13mm along the axial direction of the operation suture line.

Preferably, the surfaces of the plurality of filaments constituting the core yarn 1 are concave-convex. This can increase the cohesive force between the filaments in the core yarn 1. Meanwhile, the surface of the filament is concave-convex, so that the wrapping filament 2 is not easy to slide when being wrapped on the core yarn 1, and the interval between adjacent nubs 3 on the surgical suture can be kept stable.

Preferably, the core yarn 1 is wrapped with a wrapping filament 2 on the surface, and the wrapping filament 2S-direction or Z-direction is wrapped on the surface of the core yarn 1.

Preferably, the surface of the core yarn 1 is wrapped with two wrapping filaments, wherein one wrapping filament is wrapped on the surface of the core yarn 1 in the S direction or the Z direction, and the other wrapping filament is wrapped in the Z direction or the S direction.

Preferably, the average diameter of the non-thick segments in the wrapping filament 2 is 1/4-1/2 of the diameter of the core yarn 1.

Preferably, the average diameter of the non-thick segments in the wrapping filament 2 is 1/4-1/3 of the size of the thick segments 3.

Preferably, the wrapping filament 2 and the filaments constituting the core yarn 1 both comprise degradable materials, so that the stitches do not need to be removed after the operation, and the pain of the patient is relieved.

Preferably, the degradable material in the surgical suture is polyglycolide.

(1) preparing filaments: melting a high polymer material for producing the core yarn 1, and preparing a filament by using a melt spinning method, wherein the steps of melting, filtering, metering, spinning, side-blowing cooling, stretching, shaping and winding are included;

(2) producing core yarn: combining and twisting a plurality of filaments prepared in the step (1) to obtain a core yarn 1;

(3) producing wrapping wires: melting a high polymer material for producing the wrapping yarn 2, and preparing a heavy denier yarn by using a melt spinning method; then uniformly heating the heavy denier yarn to soften the heavy denier yarn; then the softened heavy denier yarn passes through a cooling device to cool the heavy denier yarn at intervals along the axial direction, and then the drawing step is carried out; due to the effects of uniform heating and interval cooling, the axial stretching unevenness is generated during the stretching of the heavy denier yarn, thereby obtaining the wrapping yarn 2 with the nubs 3; the distance between two adjacent thick sections 3 on the wrapping and winding wire 2 is 4-15mm by controlling the interval cooling distance and the stretching multiple;

(4) production of surgical sutures: and (3) wrapping the wrapping wire 2 on the core yarn 1 by using a wrapping device, and then performing a sterilization step to obtain the surgical suture thread with a wrapping structure, wherein during wrapping, the wrapping angle is controlled so that the interval between two thick knots 3 is 3-13mm along the axial direction of the surgical suture thread when the wrapping wire 2 is wrapped on the core yarn 1.

Preferably, when the filament is prepared in the step (1), the nanoparticle is added to the melt so that the surface of the filament is formed into a concave-convex shape. This makes it possible to increase the cohesion between the filaments when twisting a plurality of filaments to form the core yarn 1. Meanwhile, the surface of the filament is concave-convex, so that the wrapping filament 2 is not easy to slide when being wrapped on the core yarn 1, and the interval between adjacent nubs 3 on the surgical suture can be kept stable.

Preferably, when the surgical suture is produced in the step (4), one wrapping filament 2 is wrapped on the surface of the core yarn 1 in the S-direction or the Z-direction.

Preferably, in the step (4) of manufacturing the surgical suture, two wrapping filaments are used, one wrapping filament is wrapped on the surface of the core yarn 1 in the S direction or the Z direction, and then the other wrapping filament is wrapped in the Z direction or the S direction.

Preferably, the average diameter of the non-thick segment in the control winding wire 2 is 1/4-1/3 of the size of thick segment 3 when the winding wire 2 is produced.

Preferably, the average diameter of the non-thick segments in the produced wrapping filament 2 is 1/4-1/2 of the diameter of the core yarn 1.

Preferably, an anti-inflammatory hemostatic is added to the melt to facilitate wound healing when the filament is prepared in step (1) and/or the wrapping filament 2 is produced in step (3).

In addition, the spacing distance between two adjacent nubs 3 on the wrapping filament 2 can be set according to actual requirements, such as the spacing of sewing needles and the like.

Meanwhile, the invention also provides a suture method of the operation suture line with the wrapping structure, the operation suture line with the wrapping structure is adopted to suture wounds, when each needle is sutured, as the surface of the operation suture line is provided with the thick node 3, the operation suture line is not easy to slip after passing through muscles under the action of tensile force; at this time, the sewing needle passes through the surface of the muscle and penetrates between the wrapping yarn 2 and the core yarn 1 on the surface of the nearest operation suture line before the muscle when the sewing needle is sewed, thereby further preventing the operation suture line from slipping, and in this way, the next sewing needle is sewed until the last sewing needle is sewed, and finally knotting is carried out. In the process, due to the wrapping structure of the surgical suture and the sharp needle point of the surgical suture needle, the surgical suture is easy to pass between the core yarn 1 and the wrapping wire 2 of the surgical suture, and after the surgical suture passes between the core yarn 1 and the wrapping wire 2, the surgical suture is slightly tensioned, so that the nubs 3 on the surface of the surgical suture play a locking role again. Therefore, each stitch does not need to be knotted in the whole stitching process, and the stitching time is reduced.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A surgical suture of wrap construction, characterized by: the core yarn is formed by twisting a plurality of filaments, the wrapping yarn is provided with nubs which are uniformly distributed at intervals, and the wrapping yarn is wrapped on the core yarn; when the wrapping and winding wire is straightened, the interval between two adjacent nubs on the wrapping and winding wire is 4-15mm; when the wrapping silk is wrapped on the core yarn, the interval between two slubs is 3-13mm along the axial direction of the surgical suture line;

the wound is sutured by the surgical suture with the wrapping structure, and when each needle is sutured, the surface of the surgical suture has the nubs, so that the surgical suture is not easy to slip after passing through the muscle under the action of tension; at this time, the sewing needle passes through the surface of the muscle and penetrates between the wrapping silk and the core yarn on the surface of the nearest operation suture line before the muscle when the sewing needle is sewed, thereby further preventing the operation suture line from slipping, and in this way, the next sewing needle is sewed until the last sewing needle is sewed, and finally knotting is carried out.

2. The wrap-structured surgical suture of claim 1, wherein: the surfaces of a plurality of filaments constituting the core yarn are concave-convex.

3. The wrap-structured surgical suture of claim 2, wherein: the surface of the core yarn is wrapped with a wrapping filament, and the wrapping filament is wrapped on the surface of the core yarn in the S direction or the Z direction.

4. The wrap-structured surgical suture of claim 2, wherein: the surface of the core yarn is wrapped with two wrapping yarns, wherein one wrapping yarn is wrapped on the surface of the core yarn in the S direction or the Z direction, and the other wrapping yarn is wrapped in the Z direction or the S direction.

5. The wrap-structured surgical suture of claim 1, wherein: the average diameter of the non-thick segments in the wrapping filament is 1/4-1/2 of the diameter of the core yarn.

6. A surgical suture of wrapped structure according to any of claims 1 to 5, characterized in that: the average diameter of the non-coarse segments in the wrapping filament is 1/4-1/3 of the size of the coarse segments.

7. The wrap-structured surgical suture of claim 1, wherein: the wrapping yarn and the filaments forming the core yarn both comprise degradable materials.

8. The wrap-structured surgical suture of claim 7, wherein: the degradable material in the surgical suture is polyglycolide.

9. A surgical suture of wrapped structure according to any of claims 1 to 5, characterized in that: the surgical suture line also comprises an anti-inflammatory hemostatic.