Adjustable wound closure device

Abstract

The utility model provides an adjustable wound closure device which comprises a first patch and a second patch which are respectively pasted on two sides of a skin wound, the first patch is fixedly connected with a brace, and a plurality of clamping teeth are arranged on the brace at equal intervals; a clamping seat is fixedly mounted on the second patch, a through hole allowing the brace to penetrate through is formed in the clamping seat, a clamping hole for clamping the clamping teeth is formed in one side of the through hole, and a communicating groove is formed between the through hole and the clamping hole. The clamping seat is provided with the through hole for the brace to penetrate through, one side of the through hole is provided with the clamping hole for clamping the clamping tooth, the communicating groove is formed between the through hole and the clamping hole, the tightness degree of the brace is adjusted by pulling the brace to penetrate through the through hole, the brace slides into the clamping hole through the communicating groove, and the clamping tooth on the brace is clamped through the clamping hole. The tightness degree of the brace can be adjusted at any time in the wound closing process, and the experience feeling of a patient is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an adjustable wound closure device. Background Art

[0002] In surgical operations, for the treatment of wounds, suture is usually used. However, after the wound is sutured, an ugly scar will be left. Therefore, in order to reduce the scar left after suture, a suture-free wound closure device is usually used to treat the wound, so as to promote wound healing.

[0003] At present, the traditional wound closure device includes a first tape, a second tape, a rack and a lock seat. The rack is provided with ratchet teeth, and one end of the rack is connected to the first tape, and the other end of the rack extends towards the second tape. The lock seat is installed on the second tape, and a ratchet pawl is installed on the lock seat. The rack passes through the lock seat, and the ratchet pawl is engaged with the ratchet teeth on the rack. When treating a wound, the first tape and the second tape are respectively pasted on both sides of the wound, and then by pulling the rack, the rack drives the first tape to move towards the second tape, so as to close the wound, and the ratchet pawl locks the rack, so as to realize the closure treatment of the wound.

[0004] However, the pulling process of the rack of the traditional wound closure device is irreversible. When pulling the rack, it is inevitable that the wound will be closed excessively, and the tightness of the wound closure cannot be adjusted, which easily causes discomfort to the patient and is easy to leave scars. Summary of the Utility Model

[0005] The utility model provides an adjustable wound closure device, which solves the problems that the pulling process of the rack of the wound closure device in the prior art is irreversible, it is inevitable that the wound will be closed excessively when pulling the rack, the tightness of the wound closure cannot be adjusted, and it is easy to cause discomfort to the injured.

[0006] The technical solution of the utility model is realized as follows:

[0007] The utility model provides an adjustable wound closure device, which includes a first patch and a second patch respectively pasted on both sides of a skin wound. A pull bar is fixedly connected to the first patch, and a plurality of teeth are equidistantly arranged on the pull bar; a card seat is fixedly installed on the second patch, a through hole for passing through the pull bar is opened on the card seat, a card hole for clamping the teeth is arranged on one side of the through hole, and a communication groove is arranged between the through hole and the card hole.

[0008] The utility model sets through holes for passing the draw bar on the card seat, opens clamping holes for clamping the teeth on one side of the through holes, and opens a communication groove between the through holes and the clamping holes. By pulling the draw bar through the through holes, the tightness of the draw bar is adjusted, and the draw bar is slid into the clamping holes through the communication groove. The teeth on the draw bar are clamped by the clamping holes, so as to fix the draw bar, and the tightness of the draw bar can be adjusted at any time during the wound closure process, improving the patient experience.

[0009] Preferably, the teeth are conical or hemispherical, and the radius of the teeth close to the first patch is larger than the radius close to the second patch.

[0010] Specifically, the outer diameter of the end face of the teeth is smaller than the inner diameter of the through holes and larger than the inner diameter of the clamping holes, ensuring that the teeth can pass through the through holes but cannot pass through the clamping holes, realizing the adjustment of the tightness of the draw bar through the through holes and fixing the draw bar through the clamping holes.

[0011] Preferably, the inner wall of the communication groove is in a horn-shaped structure (the inner wall of the communication groove has a certain thickness), and the inner wall of the horn-shaped structure matches the conical outer wall of the teeth, facilitating the sliding of the draw bar and the front end of the teeth in the communication groove.

[0012] Preferably, the card seat is made of an elastic material.

[0013] Furthermore, the inner diameter of the communication groove is slightly smaller than the outer diameter of the draw bar. When the draw bar slides in the communication groove, since the card seat is made of an elastic material, the communication groove is expanded by the draw bar, and a clamping force is generated on the draw bar by the side wall of the communication groove, thus ensuring that there is a certain resistance when the draw bar slides in the communication groove, and preventing the draw bar from slipping out of the through hole through the communication groove when the teeth are clamped by the clamping holes, thereby further improving the reliability of the card seat in fixing the draw bar.

[0014] Preferably, a first hollow groove is opened on the side of the clamping hole away from the through hole, the first hollow groove is communicated with the clamping hole, and the first hollow groove extends to the side surface of the card seat. By providing the first hollow groove communicated with the clamping hole, it is convenient for the upper and lower sides of the communication groove to be more easily expanded when pulling the draw bar to slide in the communication groove, thereby reducing the sliding resistance of the draw bar and making the draw bar slide more smoothly in the communication groove.

[0015] Preferably, a second hollow groove is opened at the top of the clamping hole, the second hollow groove is communicated with the clamping hole, and the second hollow groove extends to the top surface of the card seat. By providing the second hollow groove communicated with the clamping hole, it is convenient for the upper and lower sides of the communication groove to be more easily opened when pulling the draw bar to slide in the communication groove, reducing the sliding resistance of the draw bar and making the draw bar slide more smoothly in the communication groove.

[0016] Preferably, a third hollow groove is formed on the side of the through hole away from the card hole. The third hollow groove communicates with the through hole and extends to the side surface of the card seat. By providing the third hollow groove communicating with the through hole, when pulling the pull bar to slide in the communication groove, it is easier for the upper and lower sides of the communication groove to open, reducing the sliding resistance of the pull bar and making the pull bar slide more smoothly in the communication groove.

[0017] Specifically, a pull ring is provided at the end of the pull bar, which is convenient for pulling the pull bar through the through hole on the card seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a top view of an adjustable wound closure device of the present invention;

[0020] Figure 2 It is a three-dimensional view of the wound closure device when the pull bar is in the adjusted state in the embodiment of the present invention;

[0021] Figure 3 It is a three-dimensional view of the wound closure device when the pull bar is in the locked state in the embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the first hollow groove opened on the card seat in the embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the second hollow groove opened on the card seat in the embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the third hollow groove opened on the card seat in the embodiment of the present invention;

[0025] In the figure: 1, the first patch; 2, the second patch; 3, the pull bar; 4, the card teeth; 5, the card seat; 6, the through hole; 7, the card hole; 8, the communication groove; 9, the first hollow groove; 10, the second hollow groove; 11, the third hollow groove; 12, the pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Referring to Figures 1 to 6 , the embodiments of the present utility model provide an adjustable wound closure device, which includes a first patch 1 and a second patch 2 respectively pasted on both sides of a skin wound (adhesive layers are provided on the bottom surfaces of the first patch 1 and the second patch 2). A pull bar 3 is fixedly connected to the first patch 1, and a plurality of teeth 4 are equidistantly arranged on the pull bar 3 (the distance between adjacent teeth 4 can be flexibly adjusted according to actual situations); a clamping seat 5 is fixedly installed on the second patch 2, a through hole 6 for passing through the pull bar 3 is opened on the clamping seat 5, a clamping hole 7 for clamping the teeth 4 is provided on one side of the through hole 6, and a communication groove 8 is provided between the through hole 6 and the clamping hole 7.

[0028] In the present utility model, a through hole 6 for passing through the pull bar 3 is provided on the clamping seat 5, a clamping hole 7 for clamping the teeth 4 is opened on one side of the through hole 6, and a communication groove 8 is opened between the through hole 6 and the clamping hole 7. By pulling the pull bar 3 through the through hole 6, the tightness of the pull bar 3 is adjusted, and the pull bar 3 is slid into the clamping hole 7 through the communication groove 8. The teeth 4 on the pull bar 3 are clamped by the clamping hole 7, so as to fix the pull bar 3, and the tightness of the pull bar 3 can be adjusted at any time during the wound closure process, improving the experience of the patient.

[0029] In this embodiment, the clamping seat 5 is a hollow clamping seat 5, and the side surface of the clamping seat 5 facing the first patch 1 is an opening. The through hole 6, the clamping hole 7, and the communication groove 8 are all opened on the side surface of the clamping seat 5 facing away from the first patch 1, and the communication groove 8 penetrates the side wall of the clamping seat 5.

[0030] As a preferred implementation of this embodiment, the teeth 4 are conical or hemispherical (conical in this embodiment), and the radius of the teeth 4 on the side close to the first patch 1 is greater than the radius on the side close to the second patch 2.

[0031] Specifically, the outer diameter of the end face of the teeth 4 is smaller than the inner diameter of the through hole 6 and greater than the inner diameter of the clamping hole 7, ensuring that the teeth 4 can pass through the through hole 6 but cannot pass through the clamping hole 7, realizing the adjustment of the tightness of the pull bar 3 through the through hole 6 and fixing the pull bar 3 through the clamping hole 7.

[0032] In this embodiment, the inner diameter of the clamping hole 7 is approximately the same as the outer diameter of the waist of the conical teeth 4, avoiding the pull bar 3 being pulled out after being clamped into the clamping opening.

[0033] As a preferred embodiment of this embodiment, the inner wall of the communication groove 8 is a horn-shaped structure (the inner wall of the communication groove 8 has a certain thickness), and the inner wall of the horn-shaped structure matches the conical outer wall of the tooth 4 (reference can be made to Figure 6 , and the distance between the upper and lower walls of the communication groove 8 gradually increases along the axial direction of the tooth 4), which facilitates the sliding of the front end of the pull bar 3 and the tooth 4 in the communication groove 8.

[0034] As a preferred embodiment of this embodiment, the card seat 5 is made of an elastic material.

[0035] Furthermore, the inner diameter of the communication groove 8 is slightly smaller than the outer diameter of the pull bar 3. When the pull bar 3 slides in the communication groove 8, since the card seat 5 is made of an elastic material, the communication groove 8 is expanded by the pull bar 3, and the side wall of the communication groove 8 will generate a clamping force on the pull bar 3, so as to ensure that there is a certain resistance when the pull bar 3 slides in the communication groove 8, and it can be avoided that the pull bar 3 slides out of the through hole 6 through the communication groove 8 when the tooth 4 is stuck through the card hole 7, thereby further improving the reliability of the card seat 5 in fixing the pull bar 3.

[0036] As a preferred embodiment of this embodiment, a first hollow groove 9 is opened on the side of the card hole 7 away from the through hole 6. The first hollow groove 9 communicates with the card hole 7, and the first hollow groove 9 extends to the side surface of the card seat 5, as Figure 4 shown; by providing the first hollow groove 9 communicating with the card hole 7, when it is convenient to pull the pull bar 3 to slide in the communication groove 8, the upper and lower sides of the communication groove 8 are more likely to expand, thereby reducing the sliding resistance of the pull bar 3 and making the pull bar 3 slide more smoothly in the communication groove 8.

[0037] As another preferred embodiment of this embodiment, a second hollow groove 10 is opened at the top of the card hole 7. The second hollow groove 10 communicates with the card hole 7, and the second hollow groove 10 extends to the top surface of the card seat 5, as Figure 5 shown; by providing the second hollow groove 10 communicating with the card hole 7, when it is convenient to pull the pull bar 3 to slide in the communication groove 8, the upper and lower sides of the communication groove 8 are more likely to open, reducing the sliding resistance of the pull bar 3 and making the pull bar 3 slide more smoothly in the communication groove 8.

[0038] As yet another preferred embodiment of this embodiment, a third hollow groove 11 is opened on the side of the through hole 6 away from the card hole 7. The third hollow groove 11 communicates with the through hole 6, and the third hollow groove 11 extends to the side surface of the card seat 5, as Figure 6 shown; by providing the third hollow groove 11 communicating with the through hole 6, when it is convenient to pull the pull bar 3 to slide in the communication groove 8, the upper and lower sides of the communication groove 8 are more likely to open, reducing the sliding resistance of the pull bar 3 and making the pull bar 3 slide more smoothly in the communication groove 8.

[0039] Specifically, a pull ring 12 is provided at the end of the pull bar 3, which facilitates pulling the pull bar 3 through the through hole 6 on the card seat 5. The pull ring 12 is made of an elastic material (such as silicone, etc.), so that the pull ring 12 can pass through the through hole 6 on the card seat 5.

[0040] In this embodiment, the wound closing device is provided in a group of two (in the specific implementation process, it can also be in a group of three, four or more). The two first patches 1 / second patches 2 in the same group of wound closing devices are connected by a connecting band, and an adhesive layer is provided on the bottom surface of the connecting band for adhesively attaching the connection to the skin surface. By setting multiple wound closing devices in a group, when closing a relatively long wound, the force on different parts on both sides of the wound is more uniform, avoiding the generation of scars.

[0041] The usage method of the wound closing device in this embodiment is as follows:

[0042] First, paste the first patch 1 and the second patch 2 on both sides of the wound to be closed on the patient's skin respectively. Then, pass the pull bar 3 on the first patch 1 through the through hole 6 on the card seat 5 of the second patch 2. Pull the pull bar 3 by the pull ring 12 at the end of the pull bar 3 to make the first patch 1 approach the second patch 2 to close the wound. Then, pull the pull bar 3 toward the side of the card hole 7 so that the pull bar 3 slides through the communication groove 8 and is caught in the card hole 7, as Figure 3 shown, which realizes the fixation of the pull bar 3; if it is felt that the wound is closed too tightly, the pull bar 3 can be pulled toward the side of the through hole 6 so that the pull bar 3 slides through the communication groove 8 and enters the through hole 6, as Figure 2 shown. Then, adjust the length of the pull bar 3 between the first patch 1 and the second patch 2 to an appropriate length. Finally, pull the pull bar 3 toward the side of the card hole 7 so that the pull bar 3 slides through the communication groove 8 and is caught in the card hole 7. The card teeth 4 on the pull bar 3 are caught by the card hole 7, which realizes the adjustment of the tightness of the wound closure.

[0043] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable wound closure device, characterized in that: The invention comprises a first patch (1) and a second patch (2) which are respectively adhered to two sides of a skin wound, wherein a pull strip (3) is fixedly connected to the first patch (1), and a plurality of latch teeth (4) are arranged at equal intervals on the pull strip (3); a latch seat (5) is fixedly mounted on the second patch (2), and a through hole (6) for passing the pull strip (3) is provided on the latch seat (5), and a latch hole (7) for latching the latch teeth (4) is provided on one side of the through hole (6), and a connecting groove (8) is provided between the through hole (6) and the latch hole (7).

2. An adjustable wound closure device according to claim 1, characterized in that: The latching teeth (4) are conical or hemispherical, and the radius of the latching teeth (4) close to the first patch (1) is greater than the radius of the latching teeth (4) close to the second patch (2).

3. An adjustable wound closure device as claimed in claim 2, characterized in that: The outer diameter of the end surface of the latching tooth (4) is smaller than the inner diameter of the through hole (6) and larger than the inner diameter of the latching hole (7).

4. The adjustable wound closure device according to claim 2, characterized in that: The inner wall of the communication groove (8) is a trumpet-shaped structure.

5. The adjustable wound closure device according to claim 1, characterized in that: The card seat (5) is made of elastic material.

6. The adjustable wound closure device according to claim 5, characterized in that: The inner diameter of the connecting groove (8) is smaller than the outer diameter of the pull rod (3).

7. The adjustable wound closure device according to claim 5, characterized in that: A first hollow groove (9) is provided on a side of the clamping hole (7) away from the through hole (6), the first hollow groove (9) is connected to the clamping hole (7), and the first hollow groove (9) extends to the side of the clamping seat (5).

8. The adjustable wound closure device according to claim 5, characterized in that: A second hollow groove (10) is provided at the top of the clamping hole (7), the second hollow groove (10) is communicated with the clamping hole (7), and the second hollow groove (10) extends to the top surface of the clamping seat (5).

9. The adjustable wound closure device according to claim 5, characterized in that: A third hollow groove (11) is provided on a side of the through hole (6) away from the clamping hole (7), the third hollow groove (11) is communicated with the through hole (6), and the third hollow groove (11) extends to the side of the clamping seat (5).

10. The adjustable wound closure device according to claim 1, characterized in that: A pull ring (12) is provided at the end of the pull rod (3).

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