Wound closure device
By designing an adjustable wound closure device, the combination of elastic tension and anchor assembly is used to solve the problems of existing wound closures in scars, tension and infection of wounds, achieving uniform tension allocation and wound adaptability, improving Patient experience and productivity.
Patent Information
- Application Number
- CN202322928707.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-31
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-10-31
Smart Images
Figure CN222217875U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wound closure medical devices, in particular to a wound closure device. Background Art
[0002] Sutures (closers) are mainly used to close surgical incisions and surface wounds. Currently, the most common wound closure medical devices include sutures, suture-free zippers, and snap-on closures. Each of these products has certain limitations. For example, sutures can cause obvious scars on the wound edge, and suture-free zippers have excessive tension that can easily cause local tissue necrosis and are not suitable for infected wounds. The tension of snap-on closures is difficult to control and mainly depends on the experience of medical staff. Utility Model Content
[0003] In order to avoid at least some disadvantages of the prior art, the utility model provides a wound closure device, which can improve the convenience of use and reliability.
[0004] According to the utility model, a wound closure device is provided, comprising an elastic tensile body, a first anchor assembly and a second anchor assembly, wherein the first anchor assembly and the second anchor assembly are respectively arranged on both sides of the wound, the first end of the elastic tensile body is used to be fixed to the first anchor assembly and the second end of the elastic tensile body is used to be fixed to the second anchor assembly, so that the elastic tensile body spans both sides of the wound to provide the tension required for wound closure, and the first anchor assembly and the second anchor assembly each comprise:
[0005] Bracket;
[0006] A wire clamp, provided on the bracket, for fixing one end of the elastic tension body; and
[0007] The adhesive piece is wrapped around the bracket and is used to be adhered to the skin on the side of the wound surface.
[0008] In some embodiments, a mounting portion is provided on the bracket, the mounting portion at least partially extends through the adhesive piece, and the wire clip is rotatably connected to the mounting portion.
[0009] In some embodiments, a bending portion is provided at the first end of the wire clamp, and a slit is formed at the bending portion for clamping the elastic tensile body. A rotating shaft portion is provided at the second end of the wire clamp, and the wire clamp is rotatably connected to the mounting portion through the rotating shaft portion.
[0010] In some embodiments, a through hole connected to the slit is provided between the first end and the second end of the wire clamp for allowing the elastic tensile body to pass through.
[0011] In some embodiments, the bracket is T-shaped and includes a first section and a second section, the first section extends along a first direction, the second section extends along a second direction, the second direction is perpendicular to the first direction, and the length of the first section along the first direction is greater than the length of the second section along the first direction.
[0012] In some embodiments, the mounting portion is disposed on the second segment, and the mounting portion is disposed at an end of the second segment close to the first segment.
[0013] In some embodiments, a hollow portion is provided on the first section and / or the second section.
[0014] In some embodiments, the adhesive member includes an adhesive layer, and the adhesive layer is used to be adhered to the skin on the side of the wound surface.
[0015] In some embodiments, the first anchor assembly and the second anchor assembly further include:
[0016] The release paper is arranged on the sticky surface of the adhesive member, and the sticky layer is located between the bracket and the release paper.
[0017] In some embodiments, the stent is bendable and / or the stent is made of a biocompatible material.
[0018] In some embodiments, a tension indicator mark is provided on the elastic tension body.
[0019] Based on the above technical scheme, the wound closure device according to the utility model has the following advantages: simple structure, convenient and reliable use, adjustable tension and convenient observation; the tension can be adaptively adjusted as the wound changes, it has good universality and does not require frequent replacement; because the bracket is covered by the adhesive, the pulling force can be evenly distributed, reducing the pulling force of the wound closure device on the skin and improving the patient's use experience; it can also simplify the production process and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0021] Figure 1 It is a schematic structural diagram of some embodiments of the anchor assembly of the wound closure device according to the utility model.
[0022] Figure 2 Schematic diagrams of the structures of other embodiments of the anchor assembly of the wound closure device according to the utility model.
[0023] Figure 3 It is a structural schematic diagram of some embodiments of the wound closure device according to the utility model in use.
[0024] Figure 4 It is a schematic structural diagram of some embodiments of the elastic tension body of the wound closure device according to the utility model.
[0025] Figure 5It is a schematic structural diagram of some embodiments of the stent of the wound closure device according to the utility model.
[0026] Figure 6 It is a schematic structural diagram of some embodiments of the wire clip of the wound closure device according to the utility model.
[0027] Description of Reference Numerals
[0028] 1. Elastic tensile body; 11. Tension indicator mark; 201. First anchor assembly; 202. Second anchor assembly; 101. Wound surface; 21. Bracket; 211. First section; 212. Second section; 213. Hollow portion; 218. Mounting portion; 22. Wire clamp; 221. Bending portion; 222. Through hole; 223. Rotating shaft portion; 23. Adhesive piece; 24. Adhesive layer; 25. Release paper; x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION
[0029] The utility model is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect defined in this way can be combined with any other aspect or aspects, unless it is clearly stated that it cannot be combined. In particular, any feature that is considered to be preferred or advantageous can be combined with one or more other features that are considered to be preferred or advantageous.
[0030] The terms "first" and "second" appearing in the present invention are only for the convenience of description to distinguish different components with the same name, and do not indicate a sequence or primary and secondary relationship.
[0031] In the description of the present invention, it is necessary to understand that the terms "inside", "outside", "upper", "lower", "front", "back", etc. indicating directions or positional relationships are defined based on the skin, release paper or bracket, etc., and are only for the convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the scope of protection of the present invention.
[0032] During the research process, the inventors found that the skin suture (closure) devices in the related technology are mainly divided into the following three categories: the first category is a subcutaneous invasive skin closure device, which first inserts a K-type needle or other fixing device into the normal skin, and then uses a silver wire or a tensioner to continuously pull the two fixing devices together to gradually close the skin edge. This solution is suitable for the trunk and limbs, but is not suitable for wounds with high aesthetic requirements, tough local tissues, and relatively hidden and narrow wounds, and the traction force cannot be obtained intuitively and portablely; the second category is a skin zipper, which, on the basis of completing the subcutaneous internal suture after the operation, stick the sterilized "zipper" on the skin on both sides of the incision and gently pull it up. When pulling up the zipper, special attention should be paid to avoid drawing in the skin underneath. This product has a wide range of applications, but it is not convenient for observing the wound condition, such as whether the blood supply is sufficient, and the wound needs to be relatively regular. It is a static traction and cannot adjust the tension. The third type of skin stretch closure device (non-invasive) directly adheres to the intact skin on both sides of the wound with sticky materials, and then applies traction from both sides to the middle of the wound with a plastic buckle. This type of product has a large pulling force, which may cause pressure ulcers on local healthy skin, and the adjusted tension is not intuitive enough.
[0033] To solve at least one of the above problems, the present invention provides a wound closure device, such as Figures 1 to 4 As shown, it includes an elastic tensile body 1, a first anchor assembly 201 and a second anchor assembly 202. The first anchor assembly 201 and the second anchor assembly 202 are respectively used to be arranged on both sides of the wound surface 101. The first end of the elastic tensile body 1 is used to be fixed to the first anchor assembly 201 and the second end of the elastic tensile body 1 is used to be fixed to the second anchor assembly 202, so that the elastic tensile body 1 spans both sides of the wound surface 101 to provide the tension required for wound closure. The first anchor assembly 201 and the second anchor assembly 202 both include: a bracket 21; a wire clip 22, which is arranged on the bracket 21 and is used to fix one end of the elastic tensile body 1; and an adhesive 23, which is covered on the bracket 21 and is used to be adhered to the skin on the side of the wound surface 101.
[0034] Specifically, any wound in which the skin is damaged or the skin tissue is lost due to external factors can be called a wound. When using the wound closure device provided by the utility model, the first anchor patch component 201 and the second anchor patch component 202 are attached to the intact skin on both sides of the wound 101, and the elastic tensile body 1 is stretched to load tension on the wound 101 to provide the tension required for closure.
[0035] Specifically, the adhesive component 2 can be a medical tape assembly that combines tapes that meet the requirements according to product design requirements; the bracket 21 is made of a plastic material, and the material of non-key parts is removed to reduce the weight as much as possible, and is used to fix the wire clamp 22; the wire clamp 22 is made of a material with certain elasticity and strength, and the tip of the wire clamp 22 is designed as a structure with a fixed angle to fix the elastic tensile body 1.
[0036] In the use of the wound closure device provided by the utility model, the tension of the elastic tensile body 1 can be adjusted and the specific tension can be estimated. The tension of the elastic tensile body 1 can also be adaptively adjusted as the wound 101 changes. For example, when used on an abdominal wound, it can realize an automatic tightening and relaxing cycle with breathing, or adaptively adjust during the closure of the wound 101. In addition, as the wound edge continues to expand from the intact skin on both sides to the middle part of the wound, the tension needs to be adjusted according to the actual situation. For medical staff, the tension can be conveniently adjusted without frequently replacing the anchor assembly. Moreover, by covering the adhesive 23 on the bracket 21, the tension can be evenly distributed in the entire area where the bracket 21 and the adhesive 23 are located, reducing the pulling force of the wound closure device on the skin and improving the patient's experience.
[0037] The wound closure device of the utility model is not only suitable for wounds that can be directly closed, but also suitable for wounds that do not meet the conditions for primary closure, such as fascial compartment syndrome or wound infection. In addition to normal pulling of the skin to promote wound closure, the device can also simulate the tension of skin tissue to prevent tissue edema, fibrosis and wound edge retraction, which helps to delay primary wound closure. When the wound meets the conditions for closure, the skin can be closed layer by layer in sequence. The tension is adjustable and the specific tension can be estimated. Under certain conditions, there is no need to repeatedly replace the product. It can improve the use efficiency of the wound closure device and facilitate medical staff to quickly complete the wound closure action.
[0038] Optionally, the first anchor assembly 201 and the second anchor assembly 202 can be arranged in any direction to be disposed on both sides of the wound surface 101, for example, disposed on both sides of the wound surface 101 along the second direction y. Optionally, one or more first anchor assembly 201 and second anchor assembly 202 can be provided. Optionally, the first anchor assembly 201 and the second anchor assembly 202 can be disposed 1 to 2 cm away from the edge of the wound surface 101. Optionally, the adhesive member 23 can be a medical tape adhesive member or the like.
[0039] Optionally, the thickness of the support 21 is uniform and less than a preset thickness, so as to facilitate pre-shaping of the wound closure device before use.
[0040] Optionally, the wire clip 22 may be made of a spring steel wire material or the like, and may be constructed like the tail of a binder clip, for example.
[0041] Optionally, the material, cross-sectional shape, size and printing style of the elastic tensile body 1 can be adaptively adjusted according to practical needs. For example, the elastic tensile body 1 can adopt a deformable material with good elasticity such as silicone rubber with good biocompatibility as a raw material. The cross-section of the elastic tensile body 1 can be circular or rectangular, etc. The elastic tensile body 1 can be solid or hollow, and can also be composed of an elastic film.
[0042] Optionally, the elastic tensile body 1 can be fixed to the wire clamp 22 by using the slit of the wire clamp 22, gluing, winding, passing through a through hole or other fixing methods.
[0043] In some embodiments, Figure 5 As shown, a mounting portion 218 is provided on the bracket 21 , and the mounting portion 218 at least partially extends through the adhesive member 23 , and the wire clip 22 is rotatably connected to the mounting portion 218 .
[0044] Specifically, the adhesive member 23 is wrapped around the bracket 21, and only the mounting portion 218 extends through the adhesive member 23, which can further optimize the tension distribution of the anchor assembly, so that the tension is evenly distributed on the skin area where the bracket 21 and the adhesive member 23 are located, thereby improving the patient's usage experience.
[0045] Specifically, by rotatably connecting the wire clip 22 to the mounting portion 218, on the one hand, the wire clip 22 can be rotated to a plane parallel to the support 21, such as the xoy plane, when not in use, to facilitate storage and access to the wound closure device; on the other hand, the wire clip 22 can be rotated to a plane perpendicular to the support 21, or to form a certain acute angle with the plane of the support 21, when in use, to facilitate the fixation of the elastic tensile body 1. Optionally, a one-way limiter can be provided on the wire clip 22 to limit the wire clip 22 at a preset angle. Optionally, the mounting portion 218 can include a limit hole, etc.
[0046] In some embodiments, Figure 6 As shown, the first end of the wire clamp 22 is provided with a bending portion 221, and the bending portion 221 forms a slit for clamping the elastic tensile body 1. The second end of the wire clamp 22 is provided with a rotating shaft portion 223, and the wire clamp 22 is rotatably connected to the mounting portion 218 through the rotating shaft portion 223.
[0047] Specifically, the bending portion 221 of the wire clip 22 is an end away from the bracket 21 in the use state, and the rotating shaft portion of the wire clip 22 is connected to the bracket 21 both in the use state and in the non-use state. Specifically, during the use of the wound closure device, the elastic tensile body 1 can be passed through the wire clip 22 of the first anchor assembly 201, and the first anchor assembly 201 is pressed, and the elastic tensile body 1 is squeezed upward (for example, along the third direction z, the third direction z is perpendicular to the first direction x) to the slit of the bending portion 221 to fix the first end of the elastic tensile body 1, and then the second end of the elastic tensile body 1 is stretched to a suitable tension, and the second end is fixed to the slit of the bending portion 221 of the second anchor assembly 202.
[0048] Specifically, considering the fixing method of the wire clamp 3, a circular through hole with a moderate symmetrical spacing is designed in the middle of the bracket 21. The hole size corresponds to the diameter size of the wire clamp 22, which can ensure that the wire clamp can pass through the through hole smoothly and can rotate freely 180° around the hole axis, and the wire clamp 22 is not easy to fall off without external force. Specifically, the wire clamp 22 is designed as a symmetrical spring-like structure, such as Figure 6 As shown, the upper portion is in the form of a slit with a fixed angle, the middle portion is in the form of a circular hole, and the two ends of the lower portion are rotating shaft portions 223 that match the through holes of the bracket. Considering the feasibility of the process, its cross section is usually circular.
[0049] Specifically, the specification of the elastic tension body 1 generally refers to the maximum outer diameter, which is generally 3 mm to 5 mm. The design dimensions of the wire clamp 22 corresponding to the elastic tension body 1 of different specifications are slightly different, and the tension provided is also different.
[0050] In some embodiments, Figure 6 As shown, a through hole 222 connected to the slit is provided between the first end and the second end of the wire clamp 22 for passing the elastic tension body 1. Specifically, the spacing of the through holes 222 along the first direction x is greater than the spacing of the slit along the first direction x. Specifically, in addition to facilitating the passage of the elastic tension body 1, the through holes 222 can also facilitate the installation of the wire clamp 22 on the mounting portion 218. For example, by pressing the two sides of the through hole 222 to reduce the spacing of the two rotating shaft portions 223 along the first direction x, the wire clamp 22 is installed on the mounting portion 218, and loosening the two sides of the through hole 222 allows the wire clamp 22 to be rotatably connected to the bracket 21.
[0051] In some embodiments, Figure 5 As shown, the bracket 21 is T-shaped and includes a first section 211 and a second section 212. The first section 211 extends along a first direction x, and the second section 212 extends along a second direction y. The second direction y is perpendicular to the first direction x. The length of the first section 211 along the first direction x is greater than the length of the second section 212 along the first direction x.
[0052] Specifically, to facilitate shaping before use, while ensuring product strength, the bracket 21 is usually designed to be thin and uniform in thickness, and the width of the tail end is designed to be much smaller than the width of the front section of the bracket 21, that is, the length of the second section 212 along the first direction x is much smaller than the first section 211.
[0053] Optionally, in use, the first section 211 is closer to the wound surface 101 than the second section 212, which can optimize the force distribution of the elastic tensile body 1 and prevent the bracket 21 from bending accidentally. Optionally, the first direction x can be the extension direction of the wound surface 101, and the first section 211 extends along the first direction x, which is conducive to wound closure.
[0054] In some embodiments, Figure 5As shown, the mounting portion 218 is disposed on the second section 212 , and the mounting portion 218 is disposed at one end of the second section 212 close to the first section 211 .
[0055] This embodiment optimizes the force distribution of the elastic tension body and avoids the bracket from bending accidentally by arranging the installation part at one end of the second section close to the first section; it can reduce the pulling force of the wound closure device on the skin and improve the patient's usage experience.
[0056] In some embodiments, Figure 5 As shown, a hollow portion 213 is provided on the first section 211 and / or the second section 212. Specifically, the hollow portion 213 is provided at a non-important position of the bracket 21.
[0057] In this embodiment, by providing the hollow portion 213 on the first section 211 and / or the second section 212, the weight of the support 21 can be reduced, thereby improving the portability and ease of use of the wound closure device.
[0058] In some embodiments, Figures 1 to 6 As shown, the adhesive member 23 includes an adhesive layer 24, and the adhesive layer 24 is used to be attached to the skin on the side of the wound surface 101. Specifically, the adhesive layer 24 is located between the support 21 and the skin.
[0059] This embodiment adheres to the skin via the adhesive layer between the stent and the skin, thereby avoiding direct contact between the stent and the skin and evenly distributing the pulling force, thereby reducing the pulling force of the wound closure device on the skin.
[0060] In some embodiments, Figure 2 As shown, the first anchor assembly 201 and the second anchor assembly 202 also include:
[0061] The release paper 25 is disposed on the sticky surface of the adhesive member 23 , and the sticky layer 24 is located between the bracket 21 and the release paper 25 .
[0062] Optionally, the adhesive member 23 may be provided with a folding portion at one end away from the first section 211 to facilitate peeling off the release paper. Optionally, along the second direction y from the direction close to the first section 211 to the direction away from the first section 211, the adhesive member 23 may be gradually narrowed to be smaller than the release paper to facilitate peeling off the release paper.
[0063] The release paper of this embodiment can prevent the sticky surface of the adhesive member from sticking or being contaminated, protect the adhesive, ensure the stickiness, and improve the reliability of the wound closure device.
[0064] In some embodiments, the support 21 is bendable and / or the support 21 is made of a biocompatible material. Optionally, the biocompatible material may be metal or TPU (thermoplastic polyurethane rubber) or the like.
[0065] This embodiment designs the stent to be bendable, so that the stent can be pre-shaped before use, so that the adhesive can better fit the intact skin such as curved surfaces, thereby expanding the use scenarios of the wound closure device; the bendable stent is suitable for various sports or collision situations, and can extend the service life of the wound closure device; and the stent made of biocompatible materials is beneficial to protecting the patient's intact skin.
[0066] In some embodiments, Figure 4 As shown, the elastic tensile body 1 is provided with tension indicator marks 11. Optionally, the tension indicator marks 11 can be ink smeared on the elastic tensile body 1 at equal intervals, and the ink can also be a biocompatible material.
[0067] This embodiment provides a tension indicator mark on the elastic tension body, which facilitates setting the elastic tension body to a suitable tension or recommended multiple, can accurately quantify the tension size, and improves the convenience and reliability of the wound closure device.
[0068] The following describes a method of using the wound closure device provided by the utility model: first, pre-shape the first anchor patch component 201 and the second anchor patch component 202 according to the shape of the skin, then tear off the release paper 25 under the adhesive 23, and respectively stick the first anchor patch component 201 and the second anchor patch component 202 (opposite) on both sides of the wound at a distance of 1 to 2 cm from the wound edge, pass the elastic tensile body 1 through the through hole 222, and press the first anchor patch component 201 while squeezing the elastic tensile body 1 upward to the slit to fix the first end of the elastic tensile body 1, then stretch the second end of the elastic tensile body 1 to the recommended multiple (black tension indicator), and use the same method to fix the second end of the stretched elastic tensile body 1 to the second anchor patch component 202.
[0069] The above is a detailed introduction to a wound closure device provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A wound closure device, characterized in that: The invention comprises an elastic tensile body (1), a first anchoring assembly (201) and a second anchoring assembly (202), wherein the first anchoring assembly (201) and the second anchoring assembly (202) are respectively arranged on both sides of a wound surface (101), the first end of the elastic tensile body (1) is used to be fixed to the first anchoring assembly (201), and the second end of the elastic tensile body (1) is used to be fixed to the second anchoring assembly (202), so that the elastic tensile body (1) spans both sides of the wound surface (101) to provide the tension required for wound closure, wherein the first anchoring assembly (201) and the second anchoring assembly (202) both comprise: Bracket (21); a wire clamp (22), provided on the bracket (21) and used for fixing one end of the elastic tension body (1); and The adhesive member (23) is coated on the support (21) and is used for being adhered to the skin on the side of the wound surface (101).
2. The wound closure device according to claim 1, characterized in that: The bracket (21) is provided with a mounting portion (218), the mounting portion (218) at least partially extends through the adhesive member (23), and the wire clip (22) is rotatably connected to the mounting portion (218).
3. The wound closure device according to claim 2, characterized in that: The first end of the wire clamp (22) is provided with a bending portion (221), and the bending portion (221) forms a slit for clamping the elastic tensile body (1). The second end of the wire clamp (22) is provided with a rotating shaft portion (223), and the wire clamp (22) is rotatably connected to the mounting portion (218) via the rotating shaft portion (223).
4. The wound closure device according to claim 3, characterized in that: A through hole (222) communicating with the slit is provided between the first end and the second end of the wire clamp (22) for allowing the elastic tensile body (1) to pass through.
5. The wound closure device according to claim 2, characterized in that: The bracket (21) is T-shaped and comprises a first section (211) and a second section (212); the first section (211) extends along a first direction (x); the second section (212) extends along a second direction (y); the second direction (y) is perpendicular to the first direction (x); and the length of the first section (211) along the first direction (x) is greater than the length of the second section (212) along the first direction (x).
6. The wound closure device according to claim 5, characterized in that: The mounting portion (218) is disposed on the second section (212), and the mounting portion (218) is disposed at an end of the second section (212) close to the first section (211).
7. The wound closure device according to claim 5, characterized in that: The first section (211) and / or the second section (212) is provided with a hollow portion (213).
8. The wound closure device according to claim 1, characterized in that: The adhesive member (23) comprises an adhesive layer (24), and the adhesive layer (24) is used to be adhered to the skin on the side of the wound surface (101).
9. The wound closure device according to claim 8, characterized in that: The first anchor assembly (201) and the second anchor assembly (202) further include: The release paper (25) is arranged on the sticky surface of the adhesive member (23), and the sticky layer (24) is located between the bracket (21) and the release paper (25).
10. The wound closure device according to any one of claims 1 to 9, characterized in that: The support (21) is bendable and / or the support (21) is made of a biocompatible material.
11. The wound closure device according to any one of claims 1 to 9, characterized in that: The elastic tension body (1) is provided with a tension indication mark (11).