Silk thread spiral type skin wound tension reducing device

Abstract

The invention discloses a silk thread spiral type skin wound tension reducing device, relates to the technical field of wound tension reducing devices, and provides the following scheme that the silk thread spiral type skin wound tension reducing device comprises two self-heating application pieces which are arranged in a left-right mirror symmetry mode, and a silk thread tightener is fixedly connected to the top surface of the self-heating application piece on the right side; a traction wire is wound between the self-heating application pieces in a crossed mode, and the rear section of the traction wire extends into an inner cavity of the wire tightener. Through the collaborative design of the self-heating application patch and the silk thread tightener, the dual functions of wound tension reduction and thermal therapy are achieved, the chemical self-heating patch uniformly heats to promote local blood circulation, and tissue repair is accelerated; the crossed spiral arrangement of the traction wires is combined with a ratchet wheel one-way tightening mechanism, the tension reducing force can be controlled, wound retraction is prevented, and the device is suitable for wounds with different tension requirements; the whole structure is simple and reliable, operation is convenient and fast, and the device is suitable for postoperative incisions, chronic wounds and other wound scenes needing tension reduction treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wound tension reliever, in particular to a silk thread spiral type skin wound tension reliever. BACKGROUND

[0002] Skin wound tension relief treatment is crucial in postoperative and wound repair. Traditional methods such as skin suture, metal nail fixation or bandage wrapping can temporarily close the wound, but have significant limitations. Suture and metal nail can easily cause local tissue ischemia, scar hyperplasia and secondary injury, and cannot dynamically adapt to the mechanical changes during wound healing, which may cause wound dehiscence or poor healing. Bandage wrapping relies on external pressure and is difficult to control the tension degree, and is easy to shift due to patient activity, affecting the effect.

[0003] In addition, most of the existing tension relieving devices lack the function of actively promoting healing, such as heat therapy or antibacterial treatment, resulting in slow healing speed and increased risk of infection. Insufficient patient comfort, complex operation and the need for frequent dressing change further increase the medical burden. Therefore, it is urgent to develop a new type of skin wound tension reliever to promote wound healing and reduce the risk of complications, and meet the urgent needs of clinical efficient, safe and patient-friendly wound management solutions. SUMMARY

[0004] In view of the defects in the above background art, a technical solution of a silk thread spiral type skin wound tension reliever is provided.

[0005] Two self-heating pad pieces are arranged in left-right mirror symmetry, a silk thread tightener is fixedly connected to the top surface of the right self-heating pad piece, and a pulling silk thread is cross-wound between the self-heating pad pieces, and the rear section of the pulling silk thread extends into the inner cavity of the silk thread tightener.

[0006] The self-heating pad pieces each include an upper pad piece, a lower pad piece fixed to the lower surface of the upper pad piece, and a medical breathable double-sided adhesive tape fixed to the lower surface of the lower pad piece, 1-7 equally spaced pulling blocks are fixedly connected to the top surface of the upper pad piece, and a chemical self-heating sheet is inserted between the lower pad piece and the upper pad piece, wherein the pulling silk thread passes through the pulling blocks in a cross-symmetrical manner.

[0007] The wire tightener comprises a base, a cross support sheet fixed on the side wall of the bottom of the inner cavity of the base, and a rotating block rotatably connected to the top surface of the cross support sheet, the left and right side walls of the rotating block are fixedly connected with the inner side surface of the rear section of the pulling wire; wherein the top surface of the rotating block is fixedly connected with a ratchet wheel, the upper layer of the inner cavity side wall of the base is fixedly connected with a ratchet ring, the top surface of the ratchet wheel is fixedly connected with a rotating shaft penetrating through the base, and one end of the rotating shaft located outside the base is fixedly connected with a knob.

[0008] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the four corners of the periphery of the lower layer of the patch and the upper layer of the patch are circularly chamfered, and a plurality of air holes are formed in the interiors of the lower layer of the patch and the upper layer of the patch.

[0009] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the lower layer of the patch and the upper layer of the patch are both provided with a placement cavity, and the chemical self-heating sheet is inserted into the interior of the placement cavity.

[0010] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the two self-heating patches have a spacing therebetween, and the self-heating patches are respectively adhered to the two sides of the skin wound, and the skin wound is located in the spacing between the self-heating patches.

[0011] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the interiors of the pulling blocks are both provided with through holes penetrating left and right, for the pulling wire to pass through the through holes in the interiors of the pulling blocks, and the through hole ports in the interiors of the pulling blocks are circularly chamfered.

[0012] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the top surface of the base is provided with a circular hole for the rotating shaft to penetrate, and the front end surface of the base is provided with two through holes for the rear section of the pulling wire to penetrate, and the through hole ports are circularly chamfered.

[0013] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the cross section of the cross support sheet is cross-shaped, and the cross support sheet is upwardly arched to support the rotating block and the ratchet wheel, and allow the ratchet wheel to be in a coupling state with the ratchet ring.

[0014] In the technical scheme of the above-mentioned wire spiral type skin wound tension reducer, preferably: the left and right sides of the rotating block are both fixedly connected with a connecting head, the rear section of the pulling wire passes through the interior of the connecting head, and the rear section of the pulling wire is fixedly connected with the through hole in the interior of the connecting head.

[0015] In the technical scheme of the above silk thread spiral type skin wound tension reliever, preferably, a plurality of ratchets are fixedly connected in annular array on the outer ring surface of the ratchet wheel, a plurality of clamping grooves for engaging the ratchets are formed in annular array on the inner side surface of the ratchet ring, and the inner side surface of the ratchet ring and the outer ring surface of the ratchet wheel have a spacing therebetween.

[0016] In the technical scheme of the above silk thread spiral type skin wound tension reliever, preferably, the left side section of the pulling silk thread is located at the lower layer, the right side section of the pulling silk thread is stacked on the left side section, and the pulling silk thread as a whole is arranged in a cross shape, wherein the outer surface of the pulling silk thread is smooth.

[0017] From the above technical scheme, compared with the prior art, the silk thread spiral type skin wound tension reliever has the following beneficial effects:

[0018] The present application realizes the dual functions of wound tension relief and heat therapy through the cooperative design of the self-heating patch and the silk thread tightener, the uniform heating of the chemical self-heating patch promotes local blood circulation and accelerates tissue repair, the cross spiral arrangement of the pulling silk thread combined with the one-way tightening mechanism of the ratchet wheel can control the tension degree and prevent wound retraction, and is suitable for wounds with different tension requirements, the overall structure is simple and reliable, the operation is convenient, and the present application is suitable for postoperative incisions, chronic wounds and other wounds requiring tension relief. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the following will briefly introduce and describe the drawings needed in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any inventive labor.

[0020] Figure 1 It is an overall structure diagram of the skin wound tension reliever.

[0021] Figure 2 It is an exploded view of the self-heating patch.

[0022] Figure 3 It is a schematic view of the pulling silk thread and the silk thread tightener.

[0023] Figure 4 It is a schematic view of the cross arrangement of the pulling silk thread.

[0024] Figure 5 It is a schematic view of the silk thread tightener after dissection.

[0025] ATTACHMENT Figure 1 ATTACHMENT Figure 5The corresponding relationship of the parts is as follows:

[0026] 1, self-heating patch; 11, lower patch; 12, upper patch; 13, pulling block; 14, chemical self-heating sheet; 15, air hole; 16, placement cavity; 17, medical air-permeable double-sided adhesive tape; 2, silk thread tightener; 21, base; 22, connecting head; 23, ratchet ring; 24, knob; 25, rotating shaft; 26, ratchet wheel; 27, rotating block; 28, cross support sheet; 3, pulling silk thread. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In order to make the technical solutions and implementation modes of the present application clearer and more understandable, the following introduces the specific embodiments preferred for implementing the technical solutions of the present application.

[0029] Embodiment one: the tension reducer is composed of two mirror-symmetrical self-heating patches 1. The silk thread tightener 2 is fixed on the top of the right self-heating patch 1 by a buckle. The lower patch 11 of the self-heating patch 1 is made of air-permeable non-woven fabric, and the upper patch 12 is medical-grade silica gel. The two are adhered by environment-friendly pressure-sensitive adhesive, and a rectangular chemical self-heating sheet 14 is embedded inside. The size of the heating sheet is tightly fitted with the placement cavity 16, so that heat can be uniformly transmitted to the wound area. The four peripheral corners are treated with R5 round chamfering to reduce the feeling of skin compression. The air holes 15 are distributed in a honeycomb shape, with a hole diameter of about 1 mm, balancing the air permeability and structural support. Five pulling blocks 13 are arranged equidistantly on the inner side of the upper patch 12. The inner through hole has a diameter of 1.5 mm and a port chamfering R2, facilitating the smooth passage of the pulling silk thread 3. The distance between the two self-heating patches 1 is 10 mm, and they are adhered to the two sides of the skin wound by the medical air-permeable double-sided adhesive tape 17.

[0030] The pulling wire 3 is sequentially threaded through the pulling block 13 in a double helix cross manner, the rear section passes through the two oval-shaped through holes on the front side of the base 21 with a diameter of 2 mm, and enters the inner cavity of the wire tightener 2 through the chamfer R1, and is welded and fixed with the side wall of the rotating block 27. The rotating block 27 is supported by the cross support sheet 28, the top ratchet 26 is provided with 10 trapezoidal ratchet teeth, which are engaged with the 10 clamping grooves on the inner side of the ratchet ring 23, and the distance between the ratchet ring 23 and the ratchet 26 is 0.5 mm, so that the one-way rotation can be smooth. The rotating shaft 25 penetrates through the top circular hole of the base 21 with a diameter of 3 mm, and the end is connected with the knob 24 with a diameter of 20 mm, and the surface is provided with anti-skid lines. When in use, rotating the knob 24 drives the ratchet 26 to rotate in one direction, the pulling wire 3 is gradually tightened, the wound is closed, and the chemical self-heating sheet 14 continuously generates heat of 40℃±2℃ through oxidation reaction, promoting local blood circulation and healing.

[0031] Example two: On the basis of the structure, X-shaped nylon reinforcing ribs are added inside the lower layer patch 11 and the upper layer patch 12 to improve the tensile strength. The pulling block 13 is increased to 7, and the spacing is optimized to be equidistantly distributed, and the distribution density of the wire 3 is increased by 30%. The rotating block 27 of the wire tightener 2 is provided with a cylindrical connector 22 on both sides, with an inner diameter of 1 mm, the rear section of the pulling wire 3 is fixed through the through hole in the connector 22 and the epoxy resin glue, and the connection reliability is enhanced. The outer ring of the ratchet 26 is upgraded to 12 involute ratchet teeth, which are engaged with the 12 precise clamping grooves on the inner side of the ratchet ring 23, and the adjustment accuracy is 0.5 mm / turn. When in use, the pulling force can be accurately controlled by fine tuning the knob 24, which is suitable for shallow wounds with small tension. The chemical self-heating sheet 14 maintains a constant temperature of 38-40℃, accelerating the migration of epidermal cells.

[0032] Example three: The self-heating patch 1 adopts modular design, which can be expanded to twice the original size through magnetic interface, covering a larger wound area. The surface of the pulling wire 3 is coated with a silver ion antibacterial layer to inhibit Staphylococcus aureus and Escherichia coli. The through hole on the front side of the base 21 of the wire tightener 2 is provided with a silica gel sealing ring to prevent body fluids from seeping into the internal mechanism. The cross support sheet 28 is made of nickel-titanium alloy memory metal, which automatically restores the arch shape after deformation, ensuring that the ratchet 26 and the ratchet ring 23 are always closely engaged. When in use, the patch 1 is first spliced to cover the wound, the knob 24 is rotated to tighten the wire 3, and the chemical self-heating sheet 14 maintains a constant temperature of 42℃ through the microcomputer temperature control chip, which is suitable for postoperative incision tension reduction and chronic wound healing, such as diabetic foot ulcers.

[0033] Example four: the upper layer patch 12 is replaced with skin-friendly liquid silicone, the thickness is reduced to 1mm, and the fit is improved; the lower layer patch 11 is made of 3D mesh breathable non-woven fabric, which improves the breathability. The pulling wire 3 is made of polylactic acid-hydroxy acid copolymer PLGA degradable material, which is completely absorbed within 6 weeks, avoiding secondary surgery. The inside of the ratchet ring 23 of the wire tightener 2 is embedded with a micro ball bearing, reducing the rotation resistance of the ratchet 26. The contact surface between the rotating block 27 and the cross support sheet 28 is provided with diamond anti-skid lines to prevent loosening. When in use, the knob 24 is quickly rotated to tighten the wire 3, and the chemical self-heating sheet 14 adopts a zoned temperature control technology, with the center temperature of the wound higher than the edge temperature, avoiding overheating of the edge tissue, suitable for facial or joint wounds.

[0034] Example five: the self-heating patch 1 is designed as a flexible structure, and the pulling wire 3 is twisted in double helix to improve the tensile strength. The base 21 of the wire tightener 2 is additionally provided with a spherical hinge, allowing the patch 1 to be inclined at an angle of 0-30°, suitable for elbow, knee and other curved surfaces. When in use, first adjust the angle of the patch 1 to fit the wound, and then tighten the wire 3 through the knob 24, and the chemical self-heating sheet 14 is provided with a flexible temperature sensor, which transmits the real-time temperature to the mobile phone APP through Bluetooth, automatically adjusts the heating power, and is suitable for prevention of joint contracture after sports injury or burn.

[0035] According to the above-mentioned preferred technical solution, the working process of the technical solution is described: when in use, first, two self-heating patches 1 are symmetrically adhered to the skin wound on both sides by the medical breathable double-sided tape 17, so that the wound is located in the interval between the two patches 1, the lower layer patch 11 is in direct contact with the skin, and the upper layer patch 12 faces outward. The chemical self-heating sheet 14 is pre-inserted into the placement cavity 16 between the lower layer patch 11 and the upper layer patch 12, and releases heat through oxidation reaction after starting, which is uniformly transmitted to the wound area through the air holes 15, promoting local blood circulation.

[0036] The pulling wire 3 is sequentially threaded through the through holes of the pulling blocks 13 on the inner side of the upper layer of the patch 12 in a cross-symmetrical manner, and the rear section is threaded through the through hole on the front side of the base 21 into the inner cavity of the wire tightener 2 and is fixedly connected with the side wall of the rotating block 27. When the knob 24 is rotated, the rotating shaft 25 drives the ratchet wheel 26 to rotate in one direction, the ratchet teeth on the outer circle of the ratchet wheel 26 are engaged with the clamping grooves on the inner side of the ratchet ring 23, the rotating block 27 is pushed to move towards the center of the ratchet ring 23, so that the pulling wire 3 is tightened, and the two self-heating patches 1 are close to each other to apply uniform tension reduction to the wound. The cross-shaped supporting sheet 28 is arched upwards to support the rotating block 27 and the ratchet wheel 26, so that the ratchet wheel 26 and the ratchet ring 23 are always in engagement, and the pulling wire 3 is prevented from retracting. When it is necessary to adjust the tension reduction degree, the knob 24 can be continuously rotated, and the one-way movement characteristics of the ratchet wheel 26 ensure that the pulling wire 3 is only tightened and not loosened. If the tension reduction is to be released, the ratchet teeth are disengaged from the clamping grooves by pressing the ratchet ring 23, and the knob 24 is reversely rotated to release the pulling wire 3. During the whole process, the cross-spiral arrangement of the pulling wire 3 cooperates with the heating function of the self-heating patch 1 to close the wound and promote healing, and is suitable for postoperative incisions, chronic wounds and burn wounds that require tension reduction treatment.

[0037] The present application is not limited to the above-mentioned best mode of implementation, and any person should know that structural changes made under the inspiration of the present application, any technical solution with the same or similar to the present application, falls within the protection scope of the present application. Finally, it should be noted that the structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, for those skilled in the art to understand and read, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have technical substantive significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

Claims

1. A silk thread spiral skin wound tension reducer, comprising two self-heating patches (1) arranged in a left-right mirror-symmetrical manner, characterized in that: A thread tightener (2) is fixedly connected to the top surface of the self-heating patch (1) on the right side, a pulling thread (3) is cross-wound between the self-heating patch (1), and the rear end of the pulling thread (3) extends into the inner cavity of the thread tightener (2); The self-heating patch (1) comprises an upper patch (12), a lower patch (11) fixed to the lower surface of the upper patch (12), and a medical breathable double-sided adhesive tape (17) adhered and fixed to the lower surface of the lower patch (11), wherein the inner side of the top surface of the upper patch (12) is fixedly connected with 1-7 equidistantly arranged pulling blocks (13), and a chemical self-heating sheet (14) is inserted between the lower patch (11) and the upper patch (12); wherein the pulling thread (3) passes through the inside of the pulling blocks (13) in a cross-symmetrical manner; The wire tightener (2) includes a base (21), a cross support plate (28) fixed to the bottom side wall of the inner cavity of the base (21), and a rotating block (27) rotatably connected to the top surface of the cross support plate (28), the left and right side walls of the rotating block (27) are fixedly connected to the inner surface of the rear section of the pulling wire (3); wherein, the top surface of the rotating block (27) is fixedly connected to a ratchet (26), the upper layer of the inner cavity side wall of the base (21) is fixedly connected to a ratchet ring (23), the top surface of the ratchet (26) is fixedly connected to a rotating shaft (25) passing through the base (21), and the end of the rotating shaft (25) located outside the base (21) is fixedly connected to a knob (24).

2. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: The four peripheral corners of the lower layer dressing sheet (11) and the upper layer dressing sheet (12) are all processed with arc chamfers, and a plurality of air holes (15) are provided inside the lower layer dressing sheet (11) and the upper layer dressing sheet (12).

3. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: A placement cavity (16) is provided between the lower layer coating sheet (11) and the upper layer coating sheet (12), and the chemical self-heating sheet (14) is inserted and coupled into the interior of the placement cavity (16).

4. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: There is a distance between the two self-heating patches (1), and the self-heating patches (1) are respectively adhered to both sides of the skin wound, and the skin wound is located within the distance between the self-heating patches (1).

5. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: The pulling block (13) is provided with through holes extending left and right, for allowing the pulling wire (3) to pass through the through holes inside the pulling block (13), and the through hole ports inside the pulling block (13) are all chamfered with arcs.

6. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: The top surface of the base (21) is provided with a circular hole for the rotating shaft (25) to pass through, and the front end surface of the base (21) is provided with two through holes for the rear section of the pulling wire (3) to pass through, and the ends of the through holes are both chamfered with arcs.

7. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: The cross-section of the cross-supporting piece (28) is cross-shaped, and the cross-supporting piece (28) is arched upwards, and is used to support the rotating block (27) and the ratchet (26), and to allow the ratchet (26) to be in a coupled state with the ratchet ring (23).

8. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: Connectors (22) are fixed on both the left and right sides of the rotating block (27), the rear section of the pulling wire (3) passes through the interior of the connecting head (22), and the rear section of the pulling wire (3) is fixedly connected to the internal through hole of the connecting head (22).

9. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: A plurality of ratchet teeth are fixedly connected in an annular array on the outer ring surface of the ratchet wheel (26), a plurality of slots for the ratchet teeth to engage are provided in an annular array on the inner side surface of the ratchet ring (23), and a distance is provided between the inner side surface of the ratchet ring (23) and the outer ring surface of the ratchet wheel (26).

10. The silk thread spiral skin wound tension reducer according to claim 1, characterized in that: The left section of the pulling wire (3) is located in the lower layer, the right section of the pulling wire (3) is stacked on the left section, and the pulling wire (3) is arranged crosswise as a whole, wherein the outer surfaces of the pulling wire (3) are all smoothed.

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