CN210582548U

CN210582548U - Surgical suture

Info

Publication number: CN210582548U
Application number: CN201920284515.7U
Authority: CN
Inventors: 曾庆平; 谢钟清; 宋树梅; 王冲
Original assignee: Sichuan Suyouhe Medical Technology Co ltd
Current assignee: Sichuan Suyouhe Medical Technology Co ltd
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-05-22
Anticipated expiration: 2029-03-06

Abstract

The utility model provides an operation suture line, which comprises a suture main body and a tail ring, wherein the suture main body at least comprises a first line part and a second line part which are sequentially arranged in the length extending direction, and the first line part and the second line part are integrally formed; a connecting ring part is formed at the other end of the first line part along the length extending direction relative to the connecting end of the second line part, the connecting ring part is connected with the tail ring, and the tail ring is integrally formed or fixedly connected on the first line part; the tail ring is provided with a threading hole, and a threading space is formed in the inner space of the threading hole; the surgical suture can be switched between two states of a spread state and a winding state. The utility model provides an annular structure that operation stylolite's afterbody contains forms a circle through passing this ring with the stylolite main part, and this circle annular structure can adjust the size wantonly, when carrying out the operation sewing up, and increase fixity that can be stronger greatly makes things convenient for sewing up fixedly of first needle.

Description

Surgical suture

Technical Field

The utility model relates to the field of medical equipment, specifically, relate to an operation stylolite, especially an operation stylolite has tail ring.

Background

Sutures are widely used in medical procedures to assist in the closure of wounds in body tissues such as skin, fat, muscle, organs, nerves, blood vessels, and the like. Specifically, during the operation, the doctor passes the suture with the suture needle back and forth through the two sides of the wound, ties off after sufficient suturing, removes the suture needle, closes the wound, and the wound is healed along with the regeneration of tissue cells.

It is well known that conventional sutures can be made of non-biodegradable materials such as silk, nylon, polyester, polypropylene or cotton, or biodegradable materials such as polydioxanone, polylactide or polyglycolide.

Surgical suturing methods are generally divided into continuous suturing and intermittent suturing, and the continuous suturing has the disadvantage that in the early stage of tissue healing, if the suture is broken, the whole wound is cracked; intermittent suturing has the disadvantages of requiring continuous knotting, being laborious and time-consuming, and increasing the risk of tissue rejection due to knotting. The suture device with the barbs is a suture which is more optimized on the basis of the traditional suture, and particularly, the suture device main body is provided with the barbs protruding towards the same direction, the barbs allow the suture to pass through tissues towards one direction, the barbs entering the tissues can well catch the tissues, meanwhile, the suture is prevented from moving backwards, and continuous forward suture is realized, so that the wound is closed. Therefore, compared with the suture without barbs, the novel suture device has the advantages that each barb can provide tissue holding force, even if the suture is broken in the early stage of tissue healing, the incision cannot be cracked, continuous suture brings the effect of interrupted suture, and the operation safety is improved; the whole process of the suture is free from knotting, so that related complications caused by the knotting can be reduced, and the operation time is shortened. Therefore, the novel suturing device can increase the operation safety, improve the operation efficiency and reduce the operation time. In addition, in the endoscopic surgery, a doctor uses the suture to close the wound in the abdominal cavity through an endoscopic instrument, the suture knotting difficulty under the endoscope is high, time and labor are wasted, and the suture with the thorn has more advantages in the endoscopic surgery.

Although some degradable sutures with barbs in the configuration and structure have been proposed and used in clinical suture surgery, many problems still remain, and their performance in clinical suture surgery can still be further improved by adjusting or improving the configuration and structure of the suture.

Patent document CN101683278B discloses a barbed wire with a tapered ring structure at the tail, wherein the ring structure is realized by means of glue, adhesive, etc., however, the overlapping part of the stitches of the glued ring is equivalent to increase the thickness of the wire body, thereby increasing the foreign matters and possibly aggravating rejection reaction. For the suture suitable for human body, the glue can cause human body allergy and is difficult to degrade in the body.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a surgical suture.

The surgical suture line provided by the utility model comprises a suture main body and a tail ring, wherein the suture main body at least comprises a first line part and a second line part which are sequentially arranged in the length extending direction, and the first line part and the second line part are integrally formed;

a connecting ring part is formed at the other end of the first line part along the length extending direction relative to the connecting end of the second line part, the connecting ring part is connected with the tail ring, and the tail ring is integrally formed or fixedly connected on the first line part;

the tail ring is provided with a threading hole, and a threading space is formed in the inner space of the threading hole; the surgical suture can be switched between two states of a spreading state and a rolling state:

in the spreading state, the whole suture main body is positioned outside the penetrating and connecting space; in the coiling state, the suture main body is at least provided with an elongated part which is positioned in the penetrating space;

when the state of the surgical suture is switched from a spreading state to a winding state, the second line part and the first line part sequentially pass through the penetrating space, and the position of the length determining part on the suture main body changes along with the relative movement between the suture main body and the penetrating space;

the part of the suture main body between the connecting ring part and the lengthening part forms a ring-shaped structure.

Preferably, the suture body is provided with barbs, and the barbs are arranged according to any rule or any multiple rules as follows: repeated arrangement, alternate arrangement, helical arrangement, random arrangement.

Preferably, the second line part is provided with barbs, and the radial end surface of the first line part is a smooth surface or provided with barbs.

Preferably, in a radially outward direction of the suture body, the barbs extend in a direction from the second line portion to the first line portion;

5-20 barbs are arranged on each cm of suture body.

Preferably, the elongate portion is located on the first line portion and/or the second line portion.

Preferably, the threading hole diameter is greater than the maximum diameter of the suture body; alternatively, the first and second electrodes may be,

the suture main body is provided with a radial deformation part, and the suture main body is penetrated into the threading hole through the radial deformation of the radial deformation part.

Preferably, the radial end faces of the tail ring surface and the first line part are smooth surfaces;

the diameter of the tail ring rotary section is within 50% of the diameter of the suture main body.

Preferably, the length of the first line part is 2-50 mm, and the circumference of the tail ring is 5-100 mm.

Preferably, the suture body further comprises a third thread part, and the first thread part, the second thread part and the third thread part are connected in sequence;

the free end of the third line part forms a sewing needle connecting end, and the radial end face of the third line part is a smooth surface.

Preferably, the suture body comprises a first and/or second piece of degradable material;

the first degradable material piece and the second degradable material piece have different degradation speeds.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides an annular structure that operation stylolite's afterbody contains forms a circle through passing this ring with the stylolite main part, and this circle annular structure can adjust the size wantonly, when carrying out the operation sewing up, and increase fixity that can be stronger greatly makes things convenient for sewing up fixedly of first needle.

2. The suture device ensures that no thread knots exist in the whole suture process, reduces rejection reaction caused by thread knot reaction, and can realize suture processes in various modes to deal with different wound trauma forms.

3. The barb has certain tissue and grasps power, can reduce the incision risk of splitting, and the barb is arranged along sewing the direction of advance, and the barb does not have sharp-pointed structure, reduces to the tissue damage.

4. The utility model discloses can effectively solve the loaded down with trivial details process of knoing among the operation process, improve operation efficiency, save operation time, bring very big convenience for laparoscopic surgery simultaneously, do to handle the notched sewing up of wound of multiple different grade type.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a surgical suture in a spread state;

fig. 2 is a schematic structural view of the surgical suture in a rolled state.

The figures show that:

third thread portion 130 of suture body 100

First line portion 110 barbs 150

Docking portion 111 tail ring 200

Threading hole 210 of definite length part 112

Loop structure 115 needle 300

Second thread portion 120

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model provides a surgical suture line, which comprises a suture main body 100 and a tail ring 200, wherein the suture main body 100 at least comprises a first line part 110 and a second line part 120 which are sequentially arranged in the length extending direction, and the first line part 110 and the second line part 120 are integrally formed; of both ends of the first wire part 110 in the length extending direction, the other end opposite to the end connected to the second wire part 120 forms a loop part 111, the loop part 111 is connected to the tail ring 200, and the tail ring 200 is integrally formed or fixedly connected to the first wire part 110. In the embodiment, the tail ring 200 and the first string portion 110 are integrally formed, but in practical applications, the two may also be fixedly connected by gluing, knotting, or a combination thereof.

The tail ring 200 is provided with a threading hole 210, and a threading space is formed in the inner space of the threading hole 210; the surgical suture can be switched between two states of a spreading state and a rolling state: as shown in fig. 1, in the spread state, the suture body 100 is entirely located outside the penetration space; in the winding state, the suture body 100 is provided with at least one elongated part 112, and the elongated part 112 is positioned in the penetrating space; as shown in fig. 2, when the surgical suture is switched from the spread state to the wound state, the second wire portion 120 and the first wire portion 110 sequentially pass through the penetration space, the position of the elongated portion 112 on the suture body 100 changes with the relative movement between the suture body 100 and the penetration space, and the portion of the suture body 100 between the loop portion 111 and the elongated portion 112 forms a loop-shaped structure 115.

It should be noted that the threading hole 210 in the tail ring 200 is not used for needle return or repeated threading during an operation, but is used for conveniently and quickly forming the loop-shaped structure 115 with an adjustable size through threading, the loop-shaped structure 115 plays a role of fixing a suture before suturing, so that the first needle is greatly convenient to suture and fix, and after a wound is sutured once, the suturing process can be finished through backstitch or side stitch. Further, the loop structure 115 is the structure used for needle back and back threading during surgery. Therefore, the size of the tail ring 200 does not need to be too large, and the suture main body 100 can be ensured to pass at least once, compared with the existing knot structure, on one hand, the first suture needle does not need a complex knotting process, the operation efficiency is effectively improved, and on the other hand, the rejection reaction caused by the knot reaction is also reduced. In addition, as for the elongation portion 112, not a specific fixed portion on the suture body 100, but a portion of the suture body 100 in the threading space is located according to a certain timing when the suture body 100 is threaded through the threading hole 210, so that the position of the elongation portion 112 on the suture body 100 can be changed, and the elongation portion 112 may be located on the first line portion 110 or the second line portion 120, and when the suture body 100 is threaded through the threading hole 210 a plurality of times, there may be a plurality of elongation portions 112, a plurality of which are located on the first line portion 110 and/or the second line portion 120. When the position of the elongated portion 112 is determined, the circumference of the loop-like structure 115 is also determined.

To ensure that the suture body 100 can pass through the threading space at least once, the diameter of the threading hole 210 is larger than the maximum diameter of the suture body 100; alternatively, the suture body 100 has a radially deformed portion, and the suture body 100 is inserted into the threading hole 210 by deformation of the radially deformed portion in the radial direction. For the structure of the suture body 100 having the deformation portion, the elastic resilience of the deformation portion can press the definite length portion 112 and the tail ring 200 relatively, so as to maintain the size of the loop-shaped structure 115 to some extent. In an embodiment, the circumferential profiles of the tail ring 200 and the threading hole 210 are both circular, and further, the surface of the tail ring 200 and the radial end surface of the first line part 110 are smooth surfaces; the diameter of the rotary section of the tail ring 200 is within 50% of the diameter of the cross section of the suture body 100; this allows the tail ring 200 to be less bulky on the one hand, and also facilitates threading of the suture body 100 through the threading hole 210 on the other hand. Preferably, the circumferential profile of the tail ring 200 or the threading hole 210 may also be other shapes such as a semicircle, an ellipse, a polygon, and the like. Preferably, the cross-sectional shape of the suture body 100 is circular, oval, rounded rectangular, or other shape.

Preferably, the suture body 100 comprises a first piece of degradable material and/or a second piece of degradable material, the first piece of degradable material having a different rate of degradation than the second piece of degradable material. In practical applications, the suture body 100 is made of degradable materials or non-degradable materials, the degradable materials include polydioxanone, polylactide, glycolide, polycaprolactone, copolymers thereof, and the like, and the non-degradable materials include polypropylene, polyurethane, polyester, and the like. Of course, the suture body 100 may also be a combination of degradable and non-degradable pieces of material; further, the suture body 100 may also be a combination of two degradable pieces of material with different degradation rates to ensure that the suture has sufficient strength throughout the period of wound healing. It should be noted that a non-degradable material is also a material with a very long degradation period in nature, and therefore, the first degradable material piece or the second degradable material piece defined by the degradation speed can also be a non-degradable material piece.

As shown in fig. 1 and 2, the suture body 100 is provided with barbs 150, and the barbs 150 are used for providing a certain tension after passing through body tissues so as to prevent the wound from being cracked after suturing. The plurality of barbs 150 may be arranged according to any one or more of the following rules: repeated arrangement, alternate arrangement, helical arrangement, random arrangement. For the configuration of the repeat arrangement, the circumferential positions of the barbs 150 are all the same on the suture body 100 in the cross-section with the barbs 150; for the alternating arrangement, the circumferential position of the barbs 150 varies periodically in the direction of the length extension of the suture body 100; for a helical arrangement, the barbs 150 extend along a single or multiple helical lines on the radial end face of the suture body 100; for a random arrangement, no, only one, or a plurality of barbs 150 may be present at any circumferential location on the suture body 100 in cross-section at any location along its length, and the barbs 150 may be present at any circumferential location. The second line part 120 is provided with a barb 150, and the radial end surface of the first line part 110 is a smooth surface or provided with the barb 150. In an embodiment, the barb 150 extends in a direction from the second line portion 120 to the first line portion 110 in a direction radially outward of the suture body 100, and the extending direction of the barb 150 is designed to allow the suture body 100 to be easily routed along the extending direction of the barb 150 when threading or suturing; on the other hand, when the suture body 100 is completely sutured, the suture body 100 does not retract due to the barbs 150. Preferably, the outer profile surfaces of the barbs 150 transition smoothly without sharp structures to reduce tissue damage. Preferably, 5-20 barbs 150 are provided per cm of suture body 100. The length of the first line part 110 is 2-50 mm, and the circumference of the tail ring 200 is 5-100 mm.

As shown in fig. 1 and 2, the suture body 100 further includes a third thread portion 130, and the first thread portion 110, the second thread portion 120, and the third thread portion 130 are connected in this order; the free end of the third thread portion 130 forms a needle attachment end for attaching a needle 300. Preferably, the radial end surface of third wire portion 130 is a smooth surface. The third wire portion 130 actually forms a guide structure having a certain length to facilitate correction of an initial sewing position and angle. Preferably, the first wire portion 110, the second wire portion 120, the third wire portion 130, and the tail ring 200 are integrally press-molded.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A surgical suture comprising a suture body (100) and a tail ring (200), wherein the suture body (100) comprises at least a first wire portion (110) and a second wire portion (120) which are sequentially arranged in a length extending direction, and the first wire portion (110) and the second wire portion (120) are integrally formed;

among two ends of the first wire part (110) along the length extension direction, a connecting ring part (111) is formed relative to the other end of the connecting end of the second wire part (120), the connecting ring part (111) is connected with the tail ring (200), and the tail ring (200) is integrally formed or fixedly connected on the first wire part (110);

the tail ring (200) is provided with a threading hole (210), and a threading space is formed in the inner space of the threading hole (210); the surgical suture can be switched between two states of a spreading state and a rolling state:

in the spreading state, the suture main body (100) is wholly positioned outside the penetration space; in the coiling state, the suture main body (100) is provided with at least one elongated part (112), and the elongated part (112) is positioned in the penetrating space;

when the state of the surgical suture is switched from a spreading state to a winding state, the second line part (120) and the first line part (110) sequentially pass through the penetrating space, and the position of the length confirming part (112) on the suture main body (100) changes along with the relative movement between the suture main body (100) and the penetrating space;

the part of the suture main body (100) between the connecting ring part (111) and the long part (112) forms a ring-shaped structure (115).

2. The surgical suture of claim 1, wherein the suture body (100) is provided with barbs (150), and the plurality of barbs (150) are arranged according to any one or more of the following rules: repeated arrangement, alternate arrangement, helical arrangement, random arrangement.

3. Surgical suture according to claim 2, characterized in that said second wire portion (120) is provided with barbs (150) and in that the radial end surface of the first wire portion (110) is smooth or provided with barbs (150).

4. Surgical suture according to claim 2 or 3, characterized in that in a direction radially outwards of the suture body (100) the barb (150) extends in a direction from the second line portion (120) to the first line portion (110);

5-20 barbs (150) are arranged on each cm of the suture body (100).

5. Surgical suture according to claim 1, characterized in that the elongated portion (112) is located on the first wire portion (110) and/or the second wire portion (120).

6. The surgical suture as claimed in claim 1, wherein the threading hole (210) has a diameter greater than the maximum diameter of the suture body (100); alternatively, the first and second electrodes may be,

the suture main body (100) is provided with a radial deformation part, and the suture main body (100) is arranged in the threading hole (210) through the radial deformation of the radial deformation part.

7. The surgical suture as claimed in claim 1, characterized in that the surface of the tail ring (200) and the radial end surface of the first thread portion (110) are smooth surfaces;

the diameter of the rotary section of the tail ring (200) is within 50% of the diameter of the cross section of the suture main body (100).

8. The surgical suture according to claim 7, wherein the first thread part (110) has a length of 2 to 50mm and the tail ring (200) has a circumference of 5 to 100 mm.

9. The surgical suture according to claim 1, wherein the suture body (100) further comprises a third line portion (130), the first line portion (110), the second line portion (120), and the third line portion (130) being connected in this order;

the free end of the third line part (130) forms a sewing needle connecting end, and the radial end surface of the third line part (130) is a smooth surface.

10. The surgical suture as claimed in claim 1, characterized in that the suture body (100) comprises a first and/or a second piece of degradable material;