Anti-runout fixture for topical liquid medications

Abstract

The utility model discloses a kind of anti-loss fixing device for external application liquid medicine, comprising: medicine application containing layer, anti-permeation layer, slow-release absorption layer, shield and fixing belt, the middle of medicine application containing layer is formed recess downward recessed;Anti-permeation layer is located in the side of recess in medicine application containing groove;Slow-release absorption layer is located in the other side of anti-permeation layer;Shield middle is provided with containing cavity, and medicine application containing layer, anti-permeation layer and slow-release absorption layer are all located in containing cavity;The end of multiple fixing belts is tied on the frame of shield.The utility model can contain liquid medicine by setting medicine application containing layer;By setting anti-permeation layer, drug solution can be locked, and liquid leakage is prevented;Slow-release absorption layer is set, and the effect of drug slow-release absorption and support is played;Shield and fixing belt are set for wrapping and fixing medicine application containing layer, anti-permeation layer and slow-release absorption layer, to prevent external force from colliding and causing medicine displacement.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a device for preventing the loss and fixing of externally applied liquid medicines. Background Technology

[0002] In modern dermatology, pain management, and transdermal drug delivery, liquid medications are widely used in areas such as arthritis, soft tissue injuries, skin infections, and radiotherapy care for tumors. Examples include traditional Chinese medicine fumigation, anti-inflammatory wet compresses, and transdermal analgesics. However, several issues remain regarding the application of topical liquid medications:

[0003] 1. Serious problems with drug penetration and contamination: Liquid drugs have poor adhesion and are easily affected by gravity, body temperature or changes in body position during the application process, resulting in reduced efficacy, clothing contamination or skin irritation.

[0004] 2. Unstable fixation or falling off: Most liquid medications need to be applied to non-planar, easily moving areas such as joints, neck, and spine. Traditional dressings (such as gauze, adhesive tape, and plastic wrap) cannot form an effective fixation and are very easy to misalign or fall off.

[0005] 3. Lack of controlled release and antibacterial function design: Traditional external application forms only have the function of "carrying" and cannot achieve the sustained release, targeted penetration and antibacterial protection of the drug solution, which limits the full play of highly effective external drugs.

[0006] 4. Issues with reusability and economy of consumables: Most current external consumables are disposable and lack modular and reusable design, resulting in waste of medical resources and are not suitable for long-term treatment scenarios for home-based chronic disease management.

[0007] Therefore, there is an urgent need for a new type of liquid drug application device with high structural integration, good three-dimensional fit, slow-release absorption and antibacterial functions, and support for replaceable modules and various fixing methods, to solve the problems of "drug control, seepage prevention, fixation and reuse" in the process of applying liquid drugs to different parts of the body. Utility Model Content

[0008] To address the aforementioned problems, this invention proposes a device for preventing the leakage and securing of topical liquid medications.

[0009] This utility model discloses a device for preventing the leakage and fixing of externally applied liquid medicines, comprising: a medicine-receiving layer, wherein the middle of the medicine-receiving layer is recessed to form a groove; an anti-seepage layer, wherein the anti-seepage layer is located on one side near the groove in the medicine-receiving groove; a slow-release absorption layer, wherein the slow-release absorption layer is located on the other side of the anti-seepage layer; a protective cover, wherein the protective cover has a receiving cavity in the middle, and the medicine-receiving layer, the anti-seepage layer, and the slow-release absorption layer are all located in the receiving cavity; and fixing straps, wherein one end of a plurality of fixing straps is tied to the frame of the protective cover.

[0010] The main body of the medication-containing layer is a silicone body, and the groove is located in the middle of the silicone body.

[0011] The impermeable layer comprises a composite membrane layer of silicone and TPU, and the impermeable layer is provided with multiple micropores penetrating the composite membrane.

[0012] The micropores are arranged in a honeycomb pattern, and the micropores are hexagonal or circular through holes.

[0013] The slow-release absorption layer includes an ultra-fine algae fiber layer, a slow-release absorption layer, and an antibacterial carbon fiber layer arranged sequentially from the inside to the outside, with the ultra-fine algae fiber layer located on the side close to the impermeable layer.

[0014] The sustained-release absorption layer is a hydrogel layer or a degreased cotton layer.

[0015] The depth of the cavity in the protective cover is no greater than the sum of the thicknesses of the medication-containing layer, the impermeable layer, and the sustained-release absorption layer.

[0016] The four edges of the cavity opening in the protective cover extend outward to form an extension. An adhesion area is provided on the side of the extension near the cavity, and a tethering through hole is provided on the outside of the adhesion area.

[0017] The strap through hole is an elongated through hole, and at least one strap through hole is provided on the extension of each side of the cover.

[0018] The fixing strap can be Velcro, adhesive tape, or elastic silicone tape.

[0019] The beneficial effects of this utility model are that it can contain liquid medicine by setting a medicine-containing layer; it can lock the liquid medicine by setting an anti-seepage layer to prevent liquid leakage; it can play a role in slow-release absorption and support of the medicine; and it can wrap and fix the medicine-containing layer, anti-seepage layer and slow-release absorption layer to prevent the medicine from shifting or falling off due to external friction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the anti-leakage and fixing device for external application of liquid medicine according to this utility model.

[0021] Figure 2This is an exploded view of the anti-leakage and fixing device for external application of liquid medicine according to this utility model.

[0022] Figure 3 This is the medicine-containing layer of this utility model.

[0023] Figure 4 This is the seepage-proof layer of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the sustained-release absorption layer of this utility model. Figure 1 .

[0025] Figure 6 This is a schematic diagram of the structure of the sustained-release absorption layer of this utility model. Figure 2 .

[0026] Figure 7 This is a schematic diagram of the structure of the protective cover of this utility model.

[0027] Figure 8 This is a schematic diagram of the extension portion of this utility model.

[0028] Figure label:

[0029] Medication-containing layer 1; silicone body 101; groove 102; impermeable layer 2; composite membrane 201; micropores 202; slow-release absorption layer 3; ultra-fine algae fiber layer 301; slow-release absorption layer 302; antibacterial carbon fiber layer 303; protective cover 4; receiving cavity 401; extension part 402; tie-through hole 403; adhesion area 404. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figures 1-8 As shown, the present invention provides a device for preventing the leakage and fixing of liquid medications applied externally, comprising: a medication-containing layer 1, an anti-seepage layer 2, a slow-release absorption layer 3, a protective cover 4, and a fixing strap. The medication-containing layer 1 has a downward recess in the middle to form a groove 102. The main body of the medication-containing layer 1 is a silicone body 101, and the groove 102 is located in the middle of the silicone body 101, forming a tray-like shape. The groove 102 is used to store liquid medications.

[0032] The impermeable layer 2 is located on one side near the groove 102 in the medication receiving tank 1. The impermeable layer 2 includes a composite membrane layer 201 of silicone and TPU, and multiple micropores 202 penetrating the composite membrane 201 are provided in the impermeable layer 2. The micropores 202 are arranged in a honeycomb pattern and are hexagonal or circular through-holes. The micropores 202 lock the medication through capillary action, preventing direct leakage of the medication and thus providing a preliminary sustained-release effect.

[0033] The micropores 202 can also be configured as funnels, with the inner diameter of the side near the groove 102 being larger than the inner diameter of the side near the sustained-release absorption layer 3.

[0034] The inner diameter of the micropores 202 is 0.5-2.0 mm, and the density is 9-36 pores / cm³. 2 .

[0035] The sustained-release absorption layer 3 is located on the other side of the impermeable layer 2; the sustained-release absorption layer 3 plays the role of drug sustained-release absorption and support.

[0036] The slow-release absorption layer 3 comprises, from the inside out, an ultra-fine denier seaweed fiber layer 301, a slow-release absorption layer 302, and an antibacterial carbon fiber layer 303, with the ultra-fine denier seaweed fiber layer 301 located on the side closest to the impermeable layer 2. The ultra-fine denier seaweed fiber layer 301 can be woven into a three-dimensional honeycomb mesh, and its function is to rapidly absorb the drug solution instantly. The slow-release absorption layer 302's function is to slowly absorb the drug solution; the slow-release absorption layer 302 is a hydrogel layer or a cotton layer. The antibacterial carbon fiber layer 303's function is to inhibit bacterial growth.

[0037] The sustained-release absorption layer 3 can be replaced, improving applicability and cost-effectiveness.

[0038] The three-dimensional honeycomb network of the ultra-fine algae fiber layer can be equipped with longitudinal drainage channels to guide the liquid to penetrate into the slow-release absorption layer in a directional manner, avoiding lateral diffusion.

[0039] The water absorption of hydrogels can slow down the flow rate of the drug solution.

[0040] The hydrogel can also be replaced with thermosensitive hydrogel particles, which are embedded in a porous PLGA scaffold with a porosity of 72%. When the sustained-release absorption layer is not in contact with the skin, the hydrogel is in a contracted state with a particle size of about 0.2 mm, forming pores with a pore size of 5-10 μm between the particles, allowing the drug solution to quickly penetrate the underlying antibacterial carbon fiber layer; when the hydrogel temperature reaches above 34 degrees Celsius, i.e., when the sustained-release absorption layer comes into contact with the skin, the thermosensitive hydrogel particles expand to 0.5 mm, the pores shrink to 1-3 μm, forming a sustained-release barrier, reducing the drug release rate from the initial 0.3 ml / min to 0.05 ml / min, and prolonging the duration of action.

[0041] The protective cover 4 has a receiving cavity 401 in the middle, in which the medication receiving layer 1, the anti-seepage layer 2, and the sustained-release absorption layer 3 are all located; one end of multiple fixing straps is tied to the frame of the protective cover 4. The protective cover 4 is a transparent elastic shell, which can be a flexible TPU shell, providing overall support and sealing to prevent the medication from shifting due to external friction.

[0042] The depth of the cavity 401 in the protective cover 4 is not greater than the sum of the thicknesses of the drug-containing layer 1, the impermeable layer 2, and the sustained-release absorption layer 3.

[0043] The four edges of the cavity 401 in the protective cover 1 extend outward to form an extension 402. An adhesion area 404 is provided on the side of the extension 402 closest to the cavity 401, and a ties through-hole 403 is located on the outer side of the adhesion area 404. High-strength medical acrylic adhesive is directly applied to the adhesion area 404 for direct skin adhesion, bearing 70% of the main fixation force and preventing overall displacement. During removal, the adhesive dots are heated to 40°C with a hair dryer, reducing the viscosity by 80% for painless peeling. Residual adhesive residue can be easily removed with the provided cleaning cotton pads.

[0044] Multiple micro ventilation holes can be provided on the cover of the protective cover 4 to prevent overheating, blistering or eczema.

[0045] The strap through hole 403 is an elongated through hole, and at least one strap through hole 403 is provided on the extension portion 402 of each side of the cover 4.

[0046] The retaining straps can be Velcro, adhesive tape, or elastic silicone tape. These straps are used to distribute remaining stress and prevent the edges from lifting.

[0047] Velcro is suitable for areas that are repeatedly bent, such as the knees and elbows; tape is suitable for areas that are not easily bent, such as the back and upper arms, and tape can provide even pressure; elastic silicone tape is suitable for concave and convex areas such as the collarbone and ankles, and silicone tape adapts to fit through elasticity.

[0048] Depending on the location of the wound, select the appropriate Velcro, tape, or elastic silicone bandage for fitting.

[0049] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A device for preventing the leakage and securing of topical liquid medications, characterized in that, include: The medicine-receiving layer has a downward-depressed groove in the middle. An impermeable layer is located on one side near the groove in the medication receiving tank; the impermeable layer includes a composite membrane layer of silicone and TPU, and multiple micropores penetrating the composite membrane are provided in the impermeable layer; The slow-release absorption layer is located on the other side of the impermeable layer; the slow-release absorption layer includes an ultra-fine denier seaweed fiber layer, a slow-release absorption layer and an antibacterial carbon fiber layer arranged sequentially from the inside to the outside, and the ultra-fine denier seaweed fiber layer is located on the side close to the impermeable layer. The protective cover has a cavity in the middle, and the medication receiving layer, the anti-seepage layer and the slow-release absorption layer are all located in the receiving cavity; The fixing straps, one end of which are attached to the frame of the cover.

2. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The main body of the medication-containing layer is a silicone body, and the groove is located in the middle of the silicone body.

3. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The micropores are arranged in a honeycomb pattern, and the micropores are hexagonal or circular through holes.

4. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The sustained-release absorption layer is a hydrogel layer or a degreased cotton layer.

5. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The depth of the cavity in the protective cover is no greater than the sum of the thicknesses of the medication-containing layer, the impermeable layer, and the sustained-release absorption layer.

6. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The four edges of the cavity opening in the protective cover extend outward to form an extension. An adhesion area is provided on the side of the extension near the cavity, and a tethering through hole is provided on the outside of the adhesion area.

7. The anti-drainage and fixation device for topical liquid medication according to claim 6, characterized in that, The strap through hole is an elongated through hole, and at least one strap through hole is provided on the extension of each side of the cover.

8. The anti-drainage and fixation device for topical liquid medication according to claim 1, characterized in that, The fixing strap can be Velcro, adhesive tape, or elastic silicone tape.

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