TWI602535B - Surgical suture group - Google Patents

Description

Surgical suture group

The invention relates to surgical sutures; in particular to a surgical suture set for surgery.

In recent years, the development of the medical and aesthetic industry has been quite rapid, especially in the lifting operation to improve the skin tightness, which is one of the main needs of many beauty lovers. Therefore, in order to reduce the large-scale trauma and scar caused by the traditional pull-up operation, the embedding and pulling operation with minimally invasive and non-marking effect has emerged as the times require, which can effectively improve the problem of sagging and aging of the skin. One of the areas to develop innovation. I will briefly explain the main two aspects of surgical sutures commonly used in the industry:

Referring to FIG. 1 , one type of surgical suture is a commonly known Feather Lift, which is formed by cutting or etching a plurality of barbs 2 on the surface of the suture 1 , thereby taking the suture 1 When penetrating into the subcutaneous tissue of the human body, the barbs 2 can pull the sliding dermis tissue, thereby producing a pulling effect. However, since the feather line is a destructive process such as cutting or etching, it will break the suture. The structure of 1 causes the strength and toughness of the structure of the suture 1 to decrease, resulting in defects such as easy breakage and easy disintegration.

Referring to FIG. 2 and FIG. 3 , it is another conventional surgical suture 3 which is tied into a plurality of knots 4 on the suture and has a cone 5 between the adjacent knots 4 . When the suture penetrates into the human skin, the cones 5 will slide in the same direction and snap onto the corresponding knot 4. However, the surgical suture 3 described above faces the following problems in application:

Problem (1): The knot between the knot 4 and the knot 4 is difficult to grasp by the knot 4 which is tied by the knot, and it is difficult to manufacture;

Problem (2): Since the suture usually has a high toughness characteristic, it has a problem that it is not easy to be tied into a knot;

Problem (3): In addition, even if the rope is knotted successfully, the stability of the knot structure is not good, and it is easy to be affected by external forces such as vibration generated during transportation or use, resulting in offset of the knot or generation of knots. The loosening occurs;

Problem (4): What is more, after the knot is tied, based on the high toughness of the suture, the wound stitch will be severely distorted, which is very inconvenient in operation and its pulling The effect will be uneven, so there is a lack of effectiveness.

The various problems described above are particularly prone to occur when using a stitch having a relatively large wire diameter. Furthermore, according to the surgical suture standard stipulated by the United States Pharmacopeia (USP), most of the surgical sutures 3 currently used can only use USP designation for 3-0 to 2-0. When the suture is to be used with a thicker suture, it cannot be effectively tied into a knot based on the high tensile strength and high toughness of the suture, so that the suture on the suture cannot be effectively positioned and grasped 4 The position, and thus the specific position of the cone 5 fixed to the knot 4, cannot be controlled. In other words, the diameter of the conventional surgical suture has its limit, so that the metabolic time of the suture is limited, and it is gradually insufficient.

Based on this, the surgical sutures described above still have many problems that the industry is trying to solve.

In view of the above, an object of the present invention is to provide a surgical suture set that is not easily distorted, is easy to handle, and is simple to manufacture.

To achieve the above object, the present invention provides a surgical suture set comprising a hollow cone and a suture. The two ends of the cone respectively have a front port and a rear port, wherein the diameter of the front port is smaller than the diameter of the rear port; the suture passes through the cone, and the suture is integrally formed with at least two spaced protrusions And the two convex portions respectively have a width in a radial direction of the suture, the width being larger than a diameter of the suture and larger than a diameter of the front port but smaller than a diameter of the rear port.

The effect of the invention is that the convex part design integrally formed by the suture can effectively position the cone at the position where the suture corresponds to the convex part, and there is no convex part deviation, and otherwise The suture of the present invention does not cause the problem of distortion, but can be easily handled and used.

In order to explain the present invention more clearly, a preferred embodiment will be described in detail with reference to the drawings. Referring to FIGS. 4-6, a surgical suture set 100 according to a preferred embodiment of the present invention includes a cone 10 and a suture 20. among them:

The cone 10 is hollow, and has a front port 12 and a rear port 14 at both ends. The front port 12 has a diameter D1, and the rear port 14 has a diameter D2, which satisfies the following condition: D1<D2 The front port 12 is in communication with the rear port 14, and the inner diameter of the cone 10 tapers from the rear port 14 toward the front port 12.

The suture 20 is passed through the cone 10, and a needle 32, 34 is respectively connected to the front and rear ends of the suture 20. In the embodiment, the two needles 32, 34 are long straight needles, but In other applications, in addition to the use of long straight needles, curved needles, short needles or combinations thereof may be used as needed, and are not limited to the long straight needles described above.

In addition, at least two spaced apart convex portions 22 are integrally formed on the suture 20, and for convenience of description, in the present embodiment, three spaced apart convex portions 22 are taken as an example, and the convex portions 22 are As shown in FIG. 5, the protrusions 22 respectively include two protrusions 221 and 222, and the two protrusions 221 and 222 respectively face the sutures 20, which are pressed, pressed or pressed by a high-pressure mechanical force. The opposite direction extends.

The purpose of designing the protrusions 22 is to match the corresponding cones when the suture 20 is pulled, or when the cone 10 is moved relative to the suture 20, as shown in FIG. The rear port 14 of the 10 enters the interior of the cone 10 and abuts against the inner wall of the cone 10, thereby relatively securing the position of each of the cones 10 on the suture 20 and its spacing. In the production, the wire diameter of the suture 20 and the width of the convex portions 22 can be designed by the following conditional formula: 1.5D ≦ W ≦ 8D. Where D is the wire diameter of the suture 20, and W is the width of the convex portions 22. In the preferred embodiment, the design is performed with a W = 3D specification to achieve sufficient structural strength of the suture 20 and sufficient width of the projection 22 for bonding the cones 10.

In addition, the width W of the convex portion 22 and the diameter D1 of the port 12 before the cone 10 and the diameter D2 of the rear port 14 may further satisfy the following condition: D1 < W < D2, thereby fixing the suture 20 and the cone When the relative positions of the bodies 10 are obtained, a better margin and space can be obtained.

Wherein at least one of the cone 10 and the suture 20 of the present invention is made of a biodegradable material, whereby the organism can be degraded or digested in the living body after being implanted into the living body, and the organism is Absorbed or excreted outside the body. For example, the suitable biodegradable material may be an absorbable bioceramic such as calcium carbonate, tricalcium phosphate, calcium sulfate, or the like, or a combination thereof; or may be a degradable high molecular polymer material, such as a natural source. Collagen, starch, cellulose, gelatin, chitin, hyaluronic acid, etc., or a combination thereof, may also be synthetic polyhydroxyalkanoates (PHA), polycaprolactone (PCL), polyglycolic acid (PGA), poly Ethanol lactic acid (PLGA), polylactic acid (PLA), or the like, or a combination thereof, but is not limited to the above-described degradable biomaterial.

In particular, since the convex portion 22 of the present invention is formed by high-pressure forming of the suture 20, there is no such thing as the prior art mentioned that the stitching property cannot be effectively tied into a knot or the like. Inconvenience in use, therefore, the manner in which the cone is fixed by the convex portion of the present invention can be selected with a thicker diameter stitch, and can have a longer metabolic time.

In other words, the size of the wire diameter (diameter) of the suture 20 of the present invention is not particularly limited, and the suture having a wire diameter as small as 0.1 mm and as large as 1 mm can be selected according to the demand for use. Preferably, Sutures having a thread diameter as small as USP designation 6-0 and as large as USP designation 1, 2 or above can be applied to the surgical suture set 100 of the present invention.

In addition, the suture 20 of the present invention has a more solid structure through the high-pressure-formed convex portion 22, which can further prolong its metabolic time, and relatively long, can have a longer pulling effect.

In another embodiment, preferably, the cone and the suture are made of a biodegradable material, but the application is not limited thereto. Only one is made of biodegradable material, and the other is not. In addition, depending on other usage requirements, it is of course also possible to make both non-biodegradable materials, not limited to the materials described above.

It should be noted that the surgical suture set 100 of the present invention has a breakthrough in the manufacturing method in addition to solving the inconvenience that the conventional method must be used to position the cone through the knot. That is to say, in the production, a plurality of cones can be sleeved on the sutures which have not been formed by the high pressure, and the respective cones are properly spaced, and then passed through a punching machine capable of generating high-pressure mechanical force. Pressing on the suture to form a plurality of protrusions between each of the cones together, thereby separating the cones. Such a structure is quite easy to mass-produce, and has a relatively high yield and is not easily deformed.

In addition, in order to further improve the surgical efficiency of the surgical suture group to which the present invention is applied, please refer to FIG. 7 and FIG. 8 , which is a cone 40 according to another preferred embodiment of the present invention. The cone 40 also has a front port. 42 and a rear port 44, which differ from the previous embodiment in that the cone 40 is divided in its axis A direction with a first segment 46 and a second segment 48 that are connected, the first segment 46 having the front port The second section 48 has the rear port 44, and the slope of the side surface of the first section 46 with respect to the axis A is m1, and the slope of the side surface of the second section 48 with respect to the axis A is m2. It satisfies the following conditions: m1 ≦ m2. Thereby, through the design of the two-stage slope, the resistance of the cone 40 when puncturing the living body can be effectively reduced, thereby improving the puncture efficiency. In addition, through such a design, the overall volume of the cone 40 can be further increased without affecting the puncture efficiency, thereby prolonging the metabolic time.

In addition, please refer to FIG. 9 and FIG. 10, which is a cone 50 according to another preferred embodiment of the present invention. The cone 50 also has a front port 52 and a rear port 54 and is distinguished in the direction of the axis A thereof. There is a first segment 56 and a second segment 58 connected thereto, the first segment 56 has the front port 52, the second segment 58 has the rear port 54, and the first segment 56 and the second segment 58 are The same as the previous embodiment is a slope design that also has a two-stage design. In particular, the outer surface of the second section 58 is further provided with four wings 59 projecting outwardly in the radial direction, and the wings 59 are arranged in a symmetrical shape. Thereby, the pulling effect of the cone 50 after penetrating into the living body can be further improved. In addition, in other applications, it may be that two opposite wings are provided, or three or more wings are provided to divide the outer surface of the cone into a plurality of equal parts instead of the above. The four wings are limited.

The above description is only a preferred embodiment of the present invention. The number of the convex portions of the suture is not limited to three. Of course, only two convex portions or three or more convex portions may be provided. In other words, the number of the projections 22 of the present invention can be appropriately changed depending on the number of the cones 10 that are passed through the suture. In addition, the above-mentioned convex portion can be manufactured by other processes except for high pressure press molding. For example, the suture and the convex portion of the suture can be formed by 3D printing without using the convex portion. Limited.

In addition, in an embodiment, the width of the convex portion of the suture can be larger than the diameter of the rear port, that is, when the convex portion has appropriate softness and elasticity, the convex portion can be squeezed from the rear port through a slightly deformed manner. Inside the cone, and the phase is fixed and not limited to the above description. Equivalent changes in the scope of the present invention and the scope of the claims are intended to be included within the scope of the invention.

[Prior Art] 1 suture 2 barb 3 suture 4 knot 5 cone [Invention] 100 surgical suture set 10 cone 12 front port 14 rear port 20 suture 22 convex part 221 convex part 222 convex part 32 34 needle D diameter D1 diameter D2 diameter W width 40 cone 42 front port 44 rear port 46 first section 48 second section 50 cone 52 front port 54 rear port 56 first section 58 second section 59 wing

Figure 1 is a schematic illustration of a conventional surgical suture. Figure 2 is a schematic illustration of another conventional surgical suture. Fig. 3 is a schematic view showing another state of the surgical suture of the above-mentioned conventional use. 4 is a top plan view of a surgical suture set in accordance with a preferred embodiment of the present invention. Figure 5 is a partial enlarged view of the suture of the surgical suture set of the above preferred embodiment of the present invention. Figure 6 is a schematic view showing the state of a surgical suture set according to the above preferred embodiment of the present invention. Figure 7 is a side elevational view of a cone of another preferred embodiment of the present invention. Figure 8 is a bottom plan view of a cone of the above preferred embodiment of the present invention. Figure 9 is a side elevational view of a cone of another preferred embodiment of the present invention. Figure 10 is a bottom plan view of a cone of the above preferred embodiment of the present invention.

100 surgical suture set 10 cone 20 suture 22 convex 32 stitch needle 34 needle

Claims (9)

A surgical suture set comprising: a hollow cone having a front port and a rear port at each end, wherein the diameter of the front port is smaller than the diameter of the rear port; a suture passing through the cone And the suture is integrally formed with at least two spaced apart convex portions, the two convex portions respectively having a width in a radial direction of the suture, the width being larger than a diameter of the suture and larger than a diameter of the front port but smaller than The diameter of the rear port; wherein the diameter of the suture is D, and the width of the protrusions is W, which satisfies the following condition: 1.5D≦W≦8D. The surgical suture set of claim 1, wherein the two convex portions are formed by pressing, pressing or punching the suture. The surgical suture set of claim 2, wherein each of the protrusions comprises two protrusions, the two protrusions respectively extending in opposite directions. The surgical suture set of claim 1, which satisfies the following condition: W=3D. The surgical suture set of claim 1, wherein at least one of the suture and the cone is made of a biodegradable material. The surgical suture set according to claim 1, which satisfies the following condition: 0.2 mm ≦ D ≦ 1 mm. The surgical suture set according to claim 1, wherein the cone has a first segment and a second segment in the axial direction thereof, and a slope of a side surface of the first segment with respect to the axis is m1, the first The slope of the side surface of the two segments with respect to the axis is m2, which satisfies the following condition: m1 ≦ m2. The surgical suture set of claim 1, wherein the outer surface of the cone is provided with a plurality of wings projecting radially outwardly therefrom. A surgical suture set comprising: a hollow cone having a front port and a rear port at each end, wherein the diameter of the front port is smaller than the diameter of the rear port; a suture passing through the cone And the suture is integrally formed with at least two spaced apart convex portions, the two convex portions respectively having a width in a radial direction of the suture, the width being larger than a diameter of the suture and larger than a diameter of the front port but smaller than The diameter of the rear port; wherein the front port has a diameter between 0.2 mm and 0.4 mm, and the rear port has a diameter between 0.5 mm and 2 mm.