Modular skin tension reducer and method of reducing tension

Abstract

The application discloses a modular skin tension reducer and a tension reduction method, and belongs to the technical field of medical cosmetology. The tension reducer comprises a sticking film group and a stepless bidirectional adjusting assembly fixed on the sticking film group. The stepless bidirectional adjusting assembly comprises a driving end, a driven end and a ring-shaped traction belt. The driving end comprises a rotating mechanism and a fixed seat I. The driven end comprises a driven wheel and a fixed seat II. The rotating mechanism comprises a knob and a base. A columnar plug is fixed to the bottom surface of the knob. A positioning groove is arranged on the bottom surface of the columnar plug. A positioning column is arranged in the middle of the base. The columnar plug is connected to the base cavity in a plug-in mode. The positioning groove is matched with the positioning column to limit the relative rotation of the knob and the base. A hook is arranged on the columnar plug. One end of the ring-shaped traction belt is hung on the hook. The driven wheel is fixedly connected with the fixed seat II. The other end of the ring-shaped traction belt is sleeved on the driven wheel. The application can flexibly combine the number, orientation and spacing of the stepless bidirectional adjusting assemblies according to the shape of the incision, finely reduces the tension of the incision and reduces the scar proliferation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a modular skin tension reducer and tension reduction method. Background Technology

[0002] With the continuous development of living standards and clinical medicine, people's awareness of plastic surgery has gradually increased. Under the premise of no life-threatening danger, minimizing or eliminating the chance of scarring has become the desired choice for most trauma patients. Scars are a product of wound repair. The causes of scar formation mainly include trauma, skin diseases, tension, race, location, age, endocrine disorders, biochemical factors, and immunological changes. Among these, incision tension has a significant impact on wound healing and the occurrence and development of scars. Excessive incision tension can lead to skin lacerations, tissue necrosis, and wound dehiscence at the incision edges after suturing. It can also stimulate scar angiogenesis and fibrous tissue proliferation, reduce cell apoptosis, thereby widening and worsening the scar, making it more prone to hypertrophic scars or keloids. Most trauma patients are very concerned about scarring after surgical incision healing. Ensuring primary primary healing of tension-related surgical incisions and minimizing post-healing scar hyperplasia has become a key focus and challenge in plastic surgery treatment.

[0003] Currently, the aforementioned problems are mostly addressed using skin tension reducers. By continuously applying appropriate tension, the skin tissue at the wound edge is guided to grow and heal in the desired direction, effectively reducing skin tension. This reduces the likelihood of complications such as wound dehiscence and infection, allowing the wound to heal neatly and orderly in a low-tension environment, thus reducing excessive scar tissue proliferation. For example, Chinese patent CN111658042A, entitled "A Skin Tension Reducer," uses an adjustable threaded screw to connect two sliders. The lower end of the sliders is fixed with a pin connected to the skin, thereby adjusting the screw to drive the sliders closer or further apart, thus achieving tension regulation. However, because the bottom of the sliders penetrates the skin through the fixed pin, it can cause discomfort or pain for the patient. Furthermore, when the two sliders are simultaneously compressed inward, the incision may bulge upward, affecting the prevention of incision scars. Summary of the Invention

[0004] The purpose of this invention is to propose a modular skin tension reducer and tension reduction method, which can precisely adjust the tension reduction of the incision in stages according to the incision shape, so that the overall tension reduction of the incision can be balanced.

[0005] The technical solution adopted by this invention is as follows: Firstly, this invention proposes a modular skin tension reducer, comprising:

[0006] A stepless bidirectional adjustment assembly includes a driving end, a driven end, and an annular traction belt. The driving end includes a rotating mechanism and a fixed base I. The driven end includes a driven wheel and a fixed base II. The rotating mechanism includes a knob and a base. The knob has a plunger at its bottom, and the plunger has a recessed positioning groove at its bottom. The base is a cavity structure with a closed bottom and an open top. A positioning post is located in the middle of the base. The plunger is embedded in the cavity of the base. The positioning groove and the positioning post are interference-fitted to restrict the relative rotation of the knob and the base. A hook is provided on the plunger, and one end of the annular traction belt is hung on the hook. The driven wheel is fixedly connected to the fixed base II, and the other end of the annular traction belt is sleeved on the driven wheel. The fixed base I and the fixed base II are rectangular blocks, each with two through holes parallel to the length direction, through which the annular traction belt passes.

[0007] The adhesive film assembly includes adhesive film I and adhesive film II. Multiple fixing positions are provided on the upper surfaces of adhesive film I and adhesive film II from top to bottom for fixing multiple parallel stepless bidirectional adjustment components. When the driving end of one of the stepless adjustment components is fixed at the fixing position of adhesive film I or adhesive film II, its driven end is fixed on adhesive film II or adhesive film I in the same layer.

[0008] As a further improvement of the present invention, a limiting protrusion is provided around the lower surface of the knob, and a limiting groove is provided around the upper opening of the base. The limiting protrusion and the limiting groove are adapted to limit the rotation between the knob and the base.

[0009] As a further improvement of the present invention, a scale is provided around the upper surface of the knob; a vertical raised groove is provided on the side of the knob, and a mark is made on the surface of one of the vertical raised grooves as a pointer; an initial mark position is provided on the surface of the base.

[0010] As a further improvement of the present invention, the positioning post is provided with an elastic block to increase the friction between the limiting groove and the positioning post.

[0011] As a further improvement of the present invention, ventilation holes are provided on the adhesive film I and the adhesive film II.

[0012] Secondly, the present invention also proposes a method for skin tension reduction, employing the modular skin tension reducer described above, the method comprising the following steps:

[0013] Step S1: Observe the shape of the incision, mark the protrusions on both sides of the incision and their number, and measure the length and width of the incision;

[0014] Step S2: Select the appropriate adhesive film I and adhesive film II according to the length of the incision; symmetrically attach adhesive film I and adhesive film II to both sides of the incision;

[0015] Step S3: Select the number of infinitely variable bidirectional adjustment components according to the length of the incision, and adjust the distance between adjacent infinitely variable bidirectional adjustment components according to the edge shape of the incision.

[0016] Step S4: Fix the stepless bidirectional adjustment components in the fixed positions of adhesive film I and adhesive film II in an up-down order and keep them parallel; if the protrusion on the cut is located on the side of adhesive film I, fix the drive end on the fixed position of adhesive film II; if the protrusion on the cut is located on the side of adhesive film II, install the drive end on the fixed position of adhesive film I; the drive ends of other cuts without protrusions are arranged on adhesive film I or adhesive film II.

[0017] Step S5: For the stepless tension reduction component located on the protrusion of the incision, first lift the knob to make the pointer and the initial mark position on the same vertical line, then rotate it at a certain angle to pull the ring traction belt and drive the protrusion to retract inward until the protrusion disappears; then press down and rotate to lock the positioning groove and the positioning post, so that the limiting protrusion and the limiting groove fit and fix together.

[0018] Step S6: After the shape of both sides of the cut is flat, adjust the knobs on each stepless bidirectional adjustment component and rotate them the same number of times according to the scale until the cut width is reduced to the preset value.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) The skin tension reducer of the present invention adopts a modular design, which can realize dynamic bidirectional adjustment of incision tension. The number, orientation and spacing of the adhesive membrane group and the stepless bidirectional adjustment component are selected according to the shape and size of the incision, thereby realizing targeted and precise adjustment of incision tension.

[0021] (2) The skin tension reducer of the present invention can achieve stepless continuous adjustment through the cooperation of knob, ring traction belt and driven wheel, avoiding the “step-like” tension change of traditional screw tension reducer, and is more suitable for complex incision morphology;

[0022] (3) The drive end of the stepless bidirectional adjustment component can be flexibly set on either side of the incision (adhesive film I or adhesive film II) to perform directional traction on the protruding part, which can effectively overcome the problem of incision bulging caused by the unilateral traction of the traditional tension reducer.

[0023] (3) According to the protruding position of the incision, the driving end is set on the adhesive film I or the adhesive film II. The width of the annular traction belt is first pulled by the knob to straighten and disappear the protruding part. Then, the knobs of other stepless bidirectional adjustment components are adjusted by the same number of rotations to adjust the overall width of the incision to the preset distance, so as to realize the fine tension reduction operation of the incision and highlight the tension reduction effect.

[0024] (4) The scale and pointer design on the knob supports precise adjustment, and the locking structure of the limit bump / slot ensures stable tension;

[0025] (5) The present invention uses a breathable adhesive film made of medical-grade adhesive film material, which can reduce the patient's discomfort and is easy to operate. Attached Figure Description

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a front view of the skin tension reducer structure of the present invention;

[0028] Figure 2 This is a perspective view of the skin tension reducing device of the present invention;

[0029] Figure 3 This is a schematic diagram of the stepless bidirectional adjustment component;

[0030] Figure 4 This is a schematic diagram of the rotating mechanism;

[0031] Figure 5 This is a schematic diagram of the knob's structure;

[0032] Figure 6 This is a structural diagram of the base;

[0033] Figure 7 This is a diagram showing the fit between the knob and the base;

[0034] Figure 8 This is a structural diagram of the adhesive module;

[0035] Reference numerals: 1-Adhesive film I, 11-Ventilation hole, 12-Fixed position, 2-Adhesive film II, 3-Infinitely variable bidirectional adjustment component, 31-Drive end, 310-Knob, 3101-Limiting protrusion, 3102-Scale, 3103-Pointer, 311-Base, 3111-Limiting groove, 3112-Initial mark position, 312-Fixed seat I, 313-Plug, 314-Positioning groove, 315-Positioning pin, 316-Hook, 32-Driven end, 320-Driven wheel, 321-Fixed seat II, 33-Annular traction belt, 4-Slit, 41-External protrusion. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0037] Please refer to Figure 1 and Figure 2 This invention discloses a modular skin tension reducer, comprising an adhesive module and multiple infinitely variable bidirectional adjustment components 3. The adhesive module includes an adhesive film I1 and an adhesive film II2, with an incision 4 between the adhesive film I1 and the adhesive film II2. Generally, the incision includes the incision site and the postoperative incision. The incision often presents an irregular shape on both sides, that is, sometimes there is a local outward protrusion, i.e., an outward protrusion 41. If the irregular incision is pulled towards the middle with the same force from both sides, the shape of the incision after tension reduction is often not ideal and cannot effectively inhibit scar hyperplasia.

[0038] Please refer to Figures 3-7 The infinitely variable bidirectional adjustment component 3 includes a drive end 31, a driven end 32, and an annular traction belt 33. The drive end 31 includes a rotating mechanism and a fixed base I 312, and the driven end 32 includes a driven wheel 320 and a fixed base II 321. The rotating mechanism includes a knob 310 and a base 311. A plunger 313 is fixed to the bottom surface of the knob 310, and a recessed positioning groove 314 is provided on the bottom surface of the plunger 313. The base 311 is a cavity structure with a closed bottom and an open top. A positioning post 315 is provided in the middle of the interior of the base 311. The plunger 313 is embedded in the cavity of the base, and the positioning groove 314 is interference-fitted with the positioning post 315 to limit the relative rotation between the knob 310 and the base 311. A hook 316 is provided on the plunger 313, and one end of the annular traction belt 33 is hung on the hook 316. The driven wheel 320 is fixedly connected to the fixed seat II 321, and the other end of the annular traction belt 33 is sleeved on the driven wheel 320. The fixed seat I 312 and the fixed seat II 321 are rectangular blocks of the same size with a small thickness. Each rectangular block has two through holes parallel to the length direction for the annular traction belt 33 to pass through. Specifically, the annular traction belt 33 is made of nylon, which has low elasticity and a certain degree of flexibility, and will not cause damage to the skin. The driving end 31 and the driven end 32 are made of medical-grade plastic, which has a certain degree of hardness and is relatively lightweight.

[0039] Please refer to Figure 5 and Figure 6The lower surface of the knob 310 is provided with a ring of limiting protrusions 3101, and the upper opening of the base 311 is provided with a ring of limiting grooves 3111. The limiting protrusions 3101 and the limiting grooves 3111 are adapted to limit the rotation between the knob 310 and the base 311.

[0040] Please refer to Figure 7 A scale 3102 is provided around the upper surface of the knob 310, and a vertical stripe is provided on the side of the knob 310. A mark is made on the surface of one of the vertical stripes as a pointer 3103; an initial position mark 3112 is provided on the surface of the base 311.

[0041] Please refer to Figure 6 The upper part of the positioning post 315 is provided with an elastic stop, which is rubber or elastic sponge, to increase the friction between the limiting groove 3111 and the positioning post 315.

[0042] Please refer to Figure 8 Multiple layers of fixing positions 12 are provided from top to bottom on the upper surfaces of adhesive films I1 and II2 for fixing multiple parallel stepless bidirectional adjustment components 3, namely, the bottom surfaces of base 311, fixing seat I312, and fixing seat II321 are attached to the fixing positions 12. When the driving end 31 of one of the stepless adjustment components 3 is fixed to the fixing position of adhesive film I1 or adhesive film II2, its driven end 32 is fixed to the adhesive film II2 or adhesive film I1 of the same layer.

[0043] Ventilation holes 11 are evenly distributed on adhesive membrane I1 and adhesive membrane II2, which can reduce the risk of skin allergies or stuffiness and improve patient comfort.

[0044] The present invention also proposes a method for skin tension reduction, comprising the following steps:

[0045] Step S1: Observe the shape of the incision 4, mark the protrusions 41 on both sides of the incision 4 and their number, and measure the length and width of the incision 4;

[0046] Step S2: Select the appropriate adhesive film I1 and adhesive film II2 according to the length of the cut 4; symmetrically attach adhesive film I1 and adhesive film II2 to both sides of the cut 4;

[0047] Step S3: Select the number of infinitely variable bidirectional adjustment components 3 according to the length of the cut 4, and adjust the distance between adjacent infinitely variable bidirectional adjustment components 3 according to the edge shape of the cut 4.

[0048] Step S4: Fix the stepless bidirectional adjustment component 3 in the upper and lower order on the fixing positions 12 of adhesive film I and adhesive film II respectively and keep them parallel; if the protrusion 41 on the cut 4 is located on the side of adhesive film I1, then fix the driving end 31 on the fixing position 12 of adhesive film II2; if the protrusion 41 on the cut 4 is located on the side of adhesive film II2, then install the driving end 31 on the fixing position 12 of adhesive film I1; the driving ends 31 of other cuts 41 without protrusions 41 are arranged on adhesive film I1 or adhesive film II2.

[0049] Step S5: For the infinite tension reduction component 3 located on the protrusion 41 of the cut 4, first lift the knob 310 so that the pointer 3103 and the initial mark 3112 are on the same vertical line, then rotate it at a certain angle to pull the annular traction belt 33, causing the protrusion 41 to retract inward until the protrusion 41 disappears; then press down and rotate 310 to lock the positioning groove 314 and the positioning post 315, so that the limiting protrusion 3101 and the limiting groove 3111 fit and fix together.

[0050] Step S6: After the two sides of the cut 41 are flat, adjust the knobs 310 on each of the stepless bidirectional adjustment components 3, rotating them the same number of times according to the scale 3102, until the width of the cut 4 is reduced to the preset value. This invention, through modular design, separates the stepless bidirectional adjustment components 3 from the adhesive film assembly. By observing the length, shape, and position of the protrusions 41 of the cut 4, the number of stepless bidirectional adjustment components 3 and the distance between adjacent components can be flexibly selected.

[0051] The modular skin tension reducer of this invention adopts a modular structural design, allowing for selection of the size of the adhesive membrane assembly and the number of infinitely variable bidirectional adjustment components 3 based on the shape of the incision 4. Furthermore, the position of the drive end 31 can be freely selected based on the length of the incision and the regularity of its edges, thus enabling adjustable direction and spacing of multiple infinitely variable bidirectional adjustment components. At the drive end 31, the knob 310 can be fixed to the base 311 through the cooperation of the limiting groove 3111 and the positioning post 315. The two are further fixed by setting the limiting protrusion 3101 and the limiting groove 3111 to prevent rotation. By setting a scale 3102, a pointer 3103, and an initial mark 3112, the annular traction belt 33 can be infinitely stretched and finely adjusted. The infinitely variable bidirectional adjustment components 3 are made of lightweight materials, making them convenient to apply and operate, and reducing patient discomfort.

[0052] The method of this invention has two key advantages. First, it enables phased operation: first, the protruding parts are treated (directional traction), and then the entire structure is adjusted uniformly to avoid incision distortion and achieve refined tension reduction, adapting to incision shapes. Second, it provides dynamic balance control: through synchronous adjustment of multiple components, it ensures uniform closure of both sides of the incision, reducing the risk of scar hyperplasia. Specifically, the adhesive position of the drive unit 31 is selected based on the location of the protruding part 41, i.e., on adhesive film I1 or adhesive film II2, thereby allowing for directional fine-tuning of the protruding part 41. This invention first treats the protruding parts 41 on both sides of the incision 4 to make them completely disappear or flatten them, and then jointly adjusts all the stepless bidirectional adjustment components to bring both sides of the entire incision closer to the center line, preventing it from twisting.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes that can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. A modular skin tensioning device, characterized by, The application relates to a stepless bidirectional adjusting assembly (3) comprising a driving end (31), a driven end (32) and a ring-shaped traction belt (33), wherein the driving end (31) comprises a rotating mechanism and a fixed seat I (312), the driven end (32) comprises a driven wheel (320) and a fixed seat II (321); the rotating mechanism comprises a knob (310) and a base (311), the bottom of the knob (310) is provided with a columnar plug (313), the bottom of the columnar plug (313) is provided with an internally recessed positioning groove (314); the base (311) is a cavity structure with a closed bottom and an open top, a positioning column (315) is arranged in the middle of the inside of the base (311), the columnar plug (313) is embeddedly connected with the base cavity, the positioning groove (314) is in interference fit with the positioning column (315) so as to limit the relative rotation of the knob (310) and the base (311); a hook (316) is arranged on the columnar plug (313), one end of the ring-shaped traction belt (33) is hung on the hook (316); the driven wheel (320) is fixedly connected with the fixed seat II (321), the other end of the ring-shaped traction belt (33) is sleeved on the driven wheel (320); the fixed seat I (312) and the fixed seat II (321) are rectangular blocks, both of which are internally provided with two through holes parallel to the length direction, and the through holes are used for the ring-shaped traction belt (33) to pass through. A sticking film group comprises a sticking film I (1) and a sticking film II (2), and a plurality of fixing positions (12) are arranged on the upper surfaces of the sticking film I (1) and the sticking film II (2) from top to bottom, which are used for fixing a plurality of mutually parallel stepless bidirectional adjusting assemblies (3), when the driving end (31) of one of the stepless bidirectional adjusting assemblies (3) is fixed on the fixing position (12) of the sticking film I (1) or the sticking film II (2), the driven end (32) is fixed on the sticking film II (2) or the sticking film I (1) of the same layer. A limiting protrusion (3101) is arranged on the lower surface of the knob (310) in a ring shape, a limiting groove (3111) is arranged on the upper opening of the base (311) in a ring shape, the limiting protrusion (3101) is matched with the limiting groove (3111), and the rotation between the knob (310) and the base (311) is limited. A scale (3102) is arranged on the upper surface of the knob (310) in a ring shape, a vertical convex pattern is arranged on the side surface of the knob (310), a mark is made on the surface of one of the vertical convex patterns, and the mark is used as a pointer (3103); an initial mark position (3112) is arranged on the surface of the base (311).

2. The modular skin tension reducer of claim 1, wherein, An elastic resistance is arranged on the positioning column (315), so as to increase the friction between the positioning groove (314) and the positioning column (315).

3. The modular skin tensioning device of claim 1, wherein, Breathable holes (11) are arranged on the sticking film I (1) and the sticking film II (2).

4. The modular skin tension reducer of claim 1, wherein, ​

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