CN118021370A - Medical suture line - Google Patents
Medical suture line Download PDFInfo
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- CN118021370A CN118021370A CN202410216434.9A CN202410216434A CN118021370A CN 118021370 A CN118021370 A CN 118021370A CN 202410216434 A CN202410216434 A CN 202410216434A CN 118021370 A CN118021370 A CN 118021370A
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- suture
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- medical suture
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- 230000035515 penetration Effects 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 206010052428 Wound Diseases 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
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Abstract
The invention discloses a medical suture line, belonging to the field of medical surgical instruments and accessories. Comprising a suture body and a stop structure at an end of the suture body, the stop structure comprising: a stopper body portion having a central portion connected to the suture body, the stopper body portion being formed in an arcuate sheet-like structure protruding in a direction away from the suture body; at least two stop protrusions rotationally symmetrically connected to the circumferential edge position of the stop body portion, at least part of which protrudes from a side surface of the suture body portion close to the suture body. The invention solves the problem that the existing suture line is unreasonable in design, so that the surgical quality is affected.
Description
Technical Field
The invention relates to the technical field of surgical instruments, in particular to a medical suture line.
Background
Surgical suturing operations commonly used in surgery are suturing a wound site with a needle and line. Typically, the suture is secured to a portion of biological tissue by an operator in the form of a knot at one end of the suture, which knot may gradually heal over time or in the local area of the patient's wound. This knotting involves the risk of getting loose or opening directly and automatically, so that the blocking mode is not sufficiently reliable; for the necessary steps of the surgical procedure, the operator is forced to make high quality and number knots. Therefore, the surgical suturing procedure by means of the operator's knot tying takes a long time, especially when operating under a mirror, with greater difficulty, greatly affecting the overall therapeutic intervention time.
With the development of the related art, the suture with the stop device at the tail part can realize the operation of avoiding knotting of the tail part, and the suture is gradually tried to be applied to the operation. However, the technology is still immature, and most tail stop devices still have the problem of slipping relative to tissues, so that the operation quality is affected. Based on this, the applicant has previously proposed a suture thread having a stop structure at the tail, which is shaped as a flat plate, provided with several protrusions on one side of the flat plate, which can be embedded in the tissue surface, making the bond firm. However, in practical applications, there is a problem that the protrusions cannot enter the tissue surface according to a preset, or the damaged area of the tissue surface is large, thereby degrading the quality of the operation.
Disclosure of Invention
The invention aims to solve the technical problem that the surgical quality is affected due to unreasonable design of the existing suture line with the stop structure.
Aiming at the technical problems, the invention provides the following technical scheme:
A medical suture comprising a suture body and a stop structure at an end of the suture body, the stop structure comprising: a stopper body portion having a central portion connected to the suture body, the stopper body portion being formed in an arcuate sheet-like structure protruding in a direction away from the suture body; at least two stop protrusions rotationally symmetrically connected to the circumferential edge position of the stop body portion, at least part of which protrudes from a side surface of the suture body portion close to the suture body.
In some embodiments of the invention, a central region of a side surface of the stop body portion remote from the suture body has an outwardly convex hemispherical protrusion that smoothly transitions with a surface adjacent thereto.
In some embodiments of the present invention, the stopper body portion is formed as a rotationally symmetrical body having the first longitudinal axis as a rotation axis.
In some embodiments of the present invention, the cross section of the stop body portion is one of polygonal, circular and polygonal.
In some embodiments of the present invention, the stop tab is disposed to extend along a second longitudinal axis, the stop tab including a connection region and a penetration region disposed along the second longitudinal axis, wherein the connection region is connected to the stop body portion, the penetration region is located on a side proximal to the suture body, and a cross-sectional area of the stop tab gradually decreases from the connection region to the penetration region.
In some embodiments of the present invention, the stop protrusion is formed as a rotationally symmetrical body having the second longitudinal axis as a rotation axis, and the distance L between the second longitudinal axis and the first longitudinal axis is 1mm to 3mm.
In some embodiments of the invention, the stop projection is an inverted cone, the region of larger cross-sectional area of the inverted cone forming the connection zone and the region of smaller cross-sectional area of the inverted cone forming the penetration zone.
In some embodiments of the invention, the stop tab is a spindle, a central region of greater cross-sectional area of the spindle forming the attachment zone, and a region of lesser cross-sectional area of the spindle located proximate one side of the suture body forming the penetration zone.
In some embodiments of the present invention, the end surface of the stop protrusion near one side of the suture body is formed with a groove.
In some embodiments of the present invention, the stopper body is formed into a sheet having an approximate polygon or an approximate polygon, the stopper protrusion is located at an end corner region of the polygon or the polygon, and the number of the stopper protrusions is equal to the number of sides of the polygon or the number of corners of the polygon.
In some embodiments of the present invention, the stop body is formed into a sheet body having a shape similar to a triangular star, three stop protrusions are provided at three end corner regions of the stop body, and the stop protrusions are formed into a spindle body.
In some embodiments of the present invention, the suture body is provided with a plurality of spaced apart barbed protrusions extending in a direction proximal to the stop structure.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
The medical suture provided by the invention comprises a stop structure, wherein at least two stop protruding parts are arranged at the edge positions of the stop main body part, and can be inserted into tissues after the suture passes through the tissues, so that the fixation of the suture relative to the tissues is realized, the knotting operation is avoided, and the suture is prevented from loosening or rotating relative to the tissues; meanwhile, as the stop main body part is formed into an arc-shaped sheet structure, when the suture line passes through tissues and is tightened, the stop main body with radian can deform to generate elastic force and act on the tissues contacted with the stop main body part in a counteraction manner, so that the reliable connection and fixation with the tissues are realized. In addition, the stop protruding parts are rotationally symmetrically connected to the stop main body part, and the distance between the two stop protruding parts and the central line of the suture line main body is consistent, so that the penetration force of tissues around the main wound surface of the tissues is uniform, and the problem that the quality of the operation is reduced due to the fact that the tissues are deformed due to uneven stress is avoided.
Drawings
The objects and advantages of the present invention will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of one embodiment of a medical suture of the present invention;
FIG. 2 is a cross-sectional view of one embodiment of a medical suture of the present invention;
FIG. 3 is a front view of one embodiment of a retaining structure for a medical suture of the present invention;
FIG. 4 is a schematic structural view of another embodiment of the medical suture of the present invention
FIG. 5 is a schematic view of another embodiment of a medical suture of the present invention;
fig. 6 is a schematic view of a structure for suturing a tissue using the medical suture of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1-5 illustrate embodiments of the medical suture of the present invention for use in surgical stapling procedures for effecting suturing of damaged tissue. As shown in fig. 1,4 and 5, the suture thread comprises a suture thread body 10 and a stop structure 20 positioned at the end of the suture thread body 10, wherein the stop structure 20 comprises a stop body part 21 and at least two stop protruding parts 22, the central part of the stop body part 21 is connected with the suture thread body 10, and the stop body part 21 is formed into an arc-shaped sheet structure protruding outwards in the direction away from the suture thread body 10; the stop protrusion 22 is rotationally symmetrically connected to the circumferential edge position of the stop main body part 21, and at least part of the area of the stop protrusion 22 protrudes from one side surface of the suture main body 10 close to the suture main body 10; any two of the stop tabs 22 are spaced a uniform distance from the centerline of the suture body 10. Wherein the centerline of the suture body 10 is a rotational symmetry center line of its cross section, the distance between the stop protrusion 22 and the centerline of the suture body 10 is generally the distance L between the centerline of the stop protrusion 22 and the centerline of the suture body 10. For example, the distance L may be the distance between the center point of the stop tab 22 and the center point of the suture body 10 at the same cross section.
In the above-mentioned stop structure 20 of the medical suture, at least two stop protruding portions 22 are provided at the edge of the stop main body portion 21, which can be inserted into the inside of the tissue after the suture passes through the tissue, thereby realizing fixation of the suture with respect to the tissue, avoiding knotting operation and avoiding loosening or rotation of the suture with respect to the tissue; meanwhile, since the stop body part 21 is formed into an arc-shaped sheet structure, when the suture thread is tightened after passing through the tissue, the stop body with radian can deform to generate elastic force and act on the tissue contacted with the stop body part in a counteraction manner, so that the reliable connection and fixation with the tissue are realized. In addition, the stop protruding parts 22 are rotationally symmetrically connected to the stop main body part 21, and the two stop protruding parts 22 are consistent in distance from the central line of the suture thread main body 10, so that the piercing force applied to the tissues around the main wound surface of the tissues (namely, the wound surface of the suture thread main body 10 penetrating the tissues) is relatively uniform, and the problem of reduced operation quality caused by deformation of the tissues due to uneven stress is avoided.
In particular, in one embodiment, the suture body 10, the stop body 21 and the stop protrusion 22 of the suture are integrally formed from the same material, and in particular, the suture may be made of an absorbable or non-absorbable material having an elastic modulus of 1MPa-3MPa, for example, but not limited to, absorbable materials such as PDO, PGA, and the like. Of course, it is also possible for those skilled in the art to separately machine the suture body 10, the stopper body portion 21 and the stopper protrusion 22, and to connect and fix them by a process such as heat welding/ultrasonic welding.
Specifically, in one embodiment, a center region of a side surface of the stopper main body portion 21 remote from the suture main body 10 has a hemispherical protrusion 211 protruding outward, and the hemispherical protrusion 211 smoothly transitions with a surface adjacent thereto. The maximum thickness of the hemispherical protrusion 211 is greater than the thickness of the sheet in other areas of the locking main body 21, so that the higher end adhesion and penetration resistance of the locking structure 20 can be achieved, and the central area of the locking main body 21 is prevented from being folded under larger stress when the suture is pulled. More specifically, the maximum thickness t 1 of the stop body portion 21 in the hemispherical protrusion 211 region is 0.5mm to 1mm, and the thickness t 2 of the other region of the stop body portion 21 is 0.5mm to 0.7mm.
Specifically, in one embodiment, the cross sections of the stopping body portion 21 and the suture body 10 are rotationally symmetrical, and as shown in fig. 2, the rotational symmetry axis of the stopping body portion 21 is the first longitudinal axis f1.
The cross-sectional area S 2 of the stop body portion 21 is related to the cross-sectional area S 0 of the suture body 10 by: s 2＝(3-5)S0. Because the cross-section of the suture body 10, i.e., the main wound area of the tissue to be sutured, is more than 3 times the cross-section area of the suture body 10, it can be reliably fixed to the tissue without the problem of penetration of the stopper structure 20 through the tissue.
More specifically, the suture body 10 is in the form of a wire extending along its length, and has a circular or nearly circular cross-section with a relatively blunt transition angle, which allows the main trauma surface of tissue to be formed with a relatively smooth, rather than sharp, incision. The cross section of the stop main body part 21 is one of polygonal, circular and polygonal; for those skilled in the art, the polygon and the polygon in the invention are similar to the polygon and similar to the polygon structure, and are not completely the polygon or the polygon in the standard mathematical graph, wherein the adjacent two sides of the polygon in the invention can be transited through an arc area, and each side of the polygon can be a straight line or an arc line or a broken line which is slightly concave or convex; the above-described shapes and modifications thereof are within the scope of the present invention. Specifically, the cross section of the stopper main body portion 21 shown in fig. 3 and 4 is a triangular star shape, and the cross section of the stopper main body portion 21 shown in fig. 5 is a circular shape.
Specifically, as shown in fig. 2, the stopping protrusion 22 is extended along a second longitudinal axis f2, the second longitudinal axis is parallel to the first longitudinal axis f1, the stopping protrusion 22 includes a connection region 221 and a penetration region 222 continuously arranged along the second longitudinal axis f2, wherein the connection region 221 is connected with the stopping body 21, the penetration region 222 is used for penetrating the tissue to be sutured, and is located at a side close to the suture body 10, and the cross-sectional area of the stopping protrusion 22 is gradually reduced from the connection region 221 to the penetration region 222, so that the contact area between the stopping protrusion 22 and the tissue to be sutured is small, and the pressure generated under the same tensile force is large, so that the tissue is easy to be penetrated.
Specifically, in an alternative embodiment, the stop protrusion 22 is formed as a rotating body having the second longitudinal axis f2 as a rotation axis, and the distance L between the second longitudinal axis f2 and the first longitudinal axis f1 is 1mm to 3mm. The distance range can ensure that the penetrating part and the penetrating area 222 of the tissue to be sutured have a certain distance from the main wound surface of the tissue, so that the problem that the wound healing is affected due to the fact that the tissue near the main wound surface is damaged too much due to the too close distance between the penetrating area 222 and the main wound surface of the tissue is avoided.
Wherein, when the stop body 21 is formed into a sheet of an approximate polygon or an approximate polygon, the stop protrusions 22 are positioned at the end corner regions of the polygon or the polygon, and the number of the stop protrusions 22 is equal to the number of sides of the polygon or the number of corners of the polygon. As shown in fig. 3 and 4, the stopper body 21 is formed into a substantially triangular star-shaped sheet, and three stopper protrusions 22 are provided at three end corner regions of the stopper body 21.
Specifically, in an alternative embodiment, as shown in fig. 4, the stop protrusion 22 is an inverted cone, the region of larger cross-sectional area of the inverted cone forms the connection region 221, and the region of smaller cross-sectional area of the inverted cone forms the penetration region 222.
Specifically, in an alternative embodiment, as shown in fig. 2 and 5, the stop protrusion 22 is a spindle, a central region of which the cross-sectional area is larger forms the connection region 221, and a region of which the cross-sectional area is smaller, which is located near one side of the suture body 10, forms the penetration region 222.
To further facilitate penetration of the penetrating portion into tissue, the end surface of the stop tab 22 adjacent to one side of the suture body 10 is formed with a recess, specifically, the recess is located in a central region of the penetrating portion end surface, so that the penetrating portion end surface is formed into an annular end surface, which further reduces the cross-sectional area of the penetrating portion, and the pressure of the penetrating portion penetrating the tissue is greater when the suture is pulled.
In one embodiment, as shown in fig. 6, the suture body 10 is provided with a plurality of spaced thorns 11, and the thorns 11 extend toward a direction approaching the stop structure 20.
As shown in fig. 6, when the medical suture thread is sutured, after the medical suture thread is inserted through the tissue, the stop protrusion 22 pierces the tissue, the tissue deforms under the pressing of the stop protrusion 22, the tissue in the middle region becomes thicker, and both sides of the tissue are tightly attached between the stop main body portion 21 and the thorn-shaped protrusion 11, thereby achieving suture fixation of the tissue and the medical suture thread, and eliminating the need for manual knotting operation by an operator.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.
Claims (12)
1. A medical suture comprising a suture body and a stop structure at an end of the suture body, the stop structure comprising:
A stopper body portion having a central portion connected to the suture body, the stopper body portion being formed in an arcuate sheet-like structure protruding in a direction away from the suture body;
At least two stop protrusions rotationally symmetrically connected to the circumferential edge position of the stop body portion, at least part of which protrudes from a side surface of the suture body portion close to the suture body.
2. A medical suture according to claim 1, wherein: the center region of the side surface of the stop body portion remote from the suture body has a hemispherical protrusion protruding outward, and the hemispherical protrusion smoothly transitions with the surface adjacent thereto.
3. A medical suture according to claim 1 or 2, wherein: the stopper body portion is formed as a rotationally symmetrical body having a first longitudinal axis as a rotation axis.
4. A medical suture according to claim 3, wherein: the cross section of the stop main body part is one of polygonal, round and polygonal.
5. A medical suture according to claim 3, wherein: the stop protrusion extends along the second longitudinal axis direction, the stop protrusion comprises a connecting zone and a penetrating zone which are arranged along the second longitudinal axis direction, wherein the connecting zone is connected with the stop main body part, the penetrating zone is positioned at one side close to the suture main body, and the cross section area of the stop protrusion gradually decreases from the connecting zone to the penetrating zone.
6. A medical suture as defined in claim 5, wherein: the stop projection is shaped as a rotationally symmetrical body with the second longitudinal axis as the rotation axis, the distance L of the second longitudinal axis from the first longitudinal axis being 1mm-3mm.
7. A medical suture as defined in claim 5, wherein: the stop projection is a reverse taper, the region of greater cross-sectional area of the reverse taper forming the connection zone and the region of lesser cross-sectional area of the reverse taper forming the penetration zone.
8. A medical suture as defined in claim 5, wherein: the stop tab is a spindle, a central region of greater cross-sectional area of the spindle forming the attachment zone, and a region of lesser cross-sectional area of the spindle located proximate one side of the suture body forming the penetration zone.
9. A medical suture as defined in claim 5, wherein: the end face of the stop protrusion near one side of the suture body is formed with a groove.
10. A medical suture according to claim 1, wherein: the stop main body part is shaped into a sheet body similar to a polygon or similar to the polygon, the stop protruding parts are positioned at the end corner areas of the polygon or the polygon, and the number of the stop protruding parts is equal to the number of sides of the polygon or the number of corners of the polygon.
11. A medical suture as defined in claim 10, wherein: the stop main body part is shaped into a sheet body similar to a triangular star shape, three stop protruding parts are arranged and are respectively positioned at three end corner areas of the stop main body part, and the stop protruding parts are shaped into a spindle body.
12. A medical suture according to claim 1, wherein: the suture thread body is provided with a plurality of thorn-shaped protrusions which are arranged at intervals, and the thorn-shaped protrusions extend towards the direction approaching the stop structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410216434.9A CN118021370A (en) | 2024-02-27 | 2024-02-27 | Medical suture line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410216434.9A CN118021370A (en) | 2024-02-27 | 2024-02-27 | Medical suture line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118021370A true CN118021370A (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410216434.9A Pending CN118021370A (en) | 2024-02-27 | 2024-02-27 | Medical suture line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118021370A (en) |
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2024
- 2024-02-27 CN CN202410216434.9A patent/CN118021370A/en active Pending
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