CN219354798U - Dressing device - Google Patents

Abstract

The utility model relates to a dressing device, which comprises a water-absorbing layer for absorbing wound exudates of a burn wound surface and a treatment layer for carrying out auxiliary treatment on the burn wound surface. The surface laminating that the treatment layer is close to the surface of a wound with the layer that absorbs water is connected with the inoxidizing coating, and the surface laminating that the treatment layer kept away from the layer that absorbs water is connected with the isolation layer, and the surface laminating that the layer kept away from the treatment layer that absorbs water distributes a plurality of heat clearing strips that have the function of clearing heat and expelling toxin to the surface of a wound on the treatment layer, and heat clearing strips form a plurality of recesses on the treatment layer, can pour into recombinant human collagen hydrogel into in the recess in order to form the protein gel strip. Besides the beneficial effects of hemostasis, moisture preservation, infection prevention and the like of the common medical dressing, the heat clearing strip arranged on the treatment layer has the effects of clearing heat and detoxicating burn wound surfaces, protein gel strips distributed alternately with the heat clearing strip can accelerate wound surface healing, and the protein gel strips have higher compatibility with human biological cell tissues and better healing effect.

Description

Dressing device

Technical Field

The utility model relates to the technical field of wound dressing, in particular to a dressing device.

Background

Burn (burn): the damage caused by flame, high temperature and intense radiant heat is called burn. Burns are tissue injuries caused by high temperature, chemicals or electricity. The skin burn of human body causes the damage of the body surface barrier of human body, and threatens the loss of body fluid, the imbalance of acid and alkali, the invasion and infection of microorganism, etc., and especially seriously endangers the life. No matter the primary healing or skin grafting treatment is carried out, a wound surface is left on a burn part, the clinical treatment mode adopted for the wound surface is generally wet dressing, the dressing is common wet dressing, the wound dressing is used as a temporary substitute for damaged skin, can absorb and remove redundant exudates of the burn wound surface and serve as a carrier of microorganism barriers and external medicines, is a simple and effective means for repairing the burn wound surface, and the ideal wound dressing also has other necessary performances such as good biocompatibility, moisture retention and air permeability of the burn wound surface and the like. Compared with other open wounds, burn wounds also have symptoms such as easy swelling, heat toxicity and the like. If the dressing can have the effects of clearing heat and detoxicating, the dressing has positive effects on the healing of wound surfaces. For example, the medical biological antibacterial dressing for nasal cavity and oral cavity and the preparation method thereof provided by the prior art CN104258455A are composed of modified chitosan, camellia oil, peppermint oil, alum, olive oil, almond oil, garlic extract, momordica grosvenori extract, licorice extract and star anise oil. For example, a traditional Chinese medicine composition and a medical dressing for treating burns and scalds disclosed in the prior art CN112807387A belong to the technical field of burn and scald traditional Chinese medicine dressings, wherein the traditional Chinese medicine composition consists of star anise, giant knotweed, bletilla striata, sorghum rice, conifer leaves, subprostrate sophora, dyers woad leaves, honeysuckle, glossy privet leaves, cherokee rose roots, raw garden burnet powder, tea oil, eucalyptus oil and the like according to certain weight parts; the traditional Chinese medicine composition specially used for treating burns and scalds is an external preparation with an improved secret recipe in the Zhuang nationality, can clear away heat and toxic materials, activate blood and remove meridian obstruction, reduce swelling and relieve pain, astringe and promote granulation, takes effect quickly, and can feel cool within 5 minutes after the traditional Chinese medicine composition is applied to the burns and scalds, thereby achieving the effects of relieving pain and reducing swelling.

In addition, the dressing made of recombinant collagen can accelerate the healing rate of wound surface, for example, a recombinant humanized collagen gel dressing disclosed in the prior art CN114470314A, and a preparation method and application thereof, and the dressing comprises: 0.001% -0.05% of recombinant humanized collagen; fibronectin 0.005% -0.02%; sodium hyaluronate 0.5% -2%; heparan sulfate 0.1% -0.8%; 1% -10% of sugar alcohol compounds; 0.5% -3% of 1, 2-pentanediol; 3% -8% of polydatin; the balance being water. The collagen gel dressing is prepared from fibronectin, sodium hyaluronate, heparan sulfate, sugar alcohol compounds and polydatin which have good biocompatibility with recombinant humanized collagen, and the gel dressing formed by adding 1, 2-pentanediol and water (purified water), has no stimulation and toxicity, can promote the materials such as the recombinant humanized collagen, the fibronectin, the polydatin and the like to be slowly released, promote the cell growth of a wound site, and has a very mild effect on wound repair. For example, prior art CN111202868B discloses a composition for preparing keratin gel dressing and gel dressing product, and a preparation method and application. The composition consists of 0.01-5 parts by weight of keratin and 80-500 parts by weight of auxiliary materials and an aqueous medium. The gel dressing prepared by the utility model can effectively stop bleeding, accelerate wound healing, isolate bacterial infection and has no toxic or side effect.

A burn emergency dressing bandage as proposed in the prior art in the patent document with publication number CN205667607U comprises a water absorbent dressing layer, an isolation layer, and a self-adhesive bandage; the isolation layer is paved on the outer surface of the water-absorbing dressing layer, the inner surface of the water-absorbing dressing layer is paved on the self-adhesive bandage, and the length of the self-adhesive bandage is greater than that of the water-absorbing dressing layer. The beneficial effects of the utility model are as follows: the burn wound treating device is convenient to carry and use, can rapidly treat the wound surface at the first time after burn occurrence, protects the wound surface from external infection and secondary injury, and provides an effective means for rescuing and treating the burn.

In the prior art, as proposed in the patent document with the publication number of CN108210171A and provided with a burn wound dressing, the burn wound dressing comprises a skin-friendly breathable layer, an adsorption layer, a fixing layer and a breathable outer layer which are sequentially arranged from bottom to top, wherein the layers are adhered and fixedly connected together; the adsorption layer contains an adsorbent prepared by carbonizing ash tree branches and wampee tree branches. The adsorption layer is prepared from the white wax tree branches and the wampee tree branches serving as raw materials, so that the adsorption layer has the effects of moisture absorption, ventilation and auxiliary treatment of burn and sore, and also has the functions of clearing heat and detoxicating, eliminating dampness, detumescence, relieving pain, removing necrotic tissue and promoting granulation.

A special dressing for burn infection wound surface, as proposed in the patent document of publication number CN205286702U, belongs to the technical field of medical dressing, and comprises an inner dressing, a middle dressing and an outer dressing which are sequentially arranged from the side contacted with the burn infection wound surface; the inner dressing is a silver ion alginate dressing layer; the middle layer is a polyurethane foam sponge layer, and the outer layer is a cotton woven gauze layer. The special dressing provided by the utility model has the advantages of being mutually matched with the inner layer, the middle layer and the outer layer, ingenious in design, hemostatic, anti-infection, moisturizing, healing promoting, good in drainage, pain relieving and the like, and can effectively heal burn infection wound surfaces.

The dressing for burn wound in the prior art has various functions designed, for example, the dressing bandage for burn emergency treatment of the prior art CN205667607U is convenient to carry and use, can rapidly treat the wound at the first time after burn occurrence, protects the wound from external infection and secondary injury, but has insufficient consideration in terms of clearing heat, removing toxicity, stopping bleeding and promoting healing; for example, the burn wound dressing of the prior art CN108210171A has the functions of clearing heat and detoxicating, eliminating dampness, detumescence, relieving pain, removing necrotic tissue and promoting granulation and the like by adopting the adsorbent prepared by carbonizing fraxinus chinensis branches and wampee branches, but has weaker effect in anti-infection; for example, the special dressing for burn infection wound surface of the prior art CN205286702U has the advantages of hemostasis, anti-infection, moisture retention, healing promotion, good drainage, pain relief and the like, but has insufficient consideration in aspects of clearing heat, detoxicating, detumescence and the like. In addition, the dressing material in the prior art still has room for improvement in biocompatibility.

Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, as the inventors studied numerous documents and patents while the present utility model was made, the text is not limited to details and contents of all that are listed, but it is by no means the present utility model does not have these prior art features, the present utility model has all the prior art features, and the applicant remains in the background art to which the rights of the related prior art are added.

Disclosure of Invention

To the technical scheme's that prior art proposed not enough, this application proposes a dressing device, and this dressing device is including the layer that absorbs water that is used for absorbing burn wound's wound exudates for carry out auxiliary treatment's to burn wound surface treatment layer.

Preferably, the treatment layer is in fit connection with the surface of the water absorption layer, which is close to the wound surface, the surface of the treatment layer, which is far away from the water absorption layer, is in fit connection with the protective layer, the surface of the water absorption layer, which is far away from the treatment layer, is in fit connection with the isolation layer, the treatment layer is provided with a plurality of heat clearing strips with the functions of clearing heat and removing toxicity for the wound surface, the heat clearing strips form a plurality of grooves on the treatment layer, and the grooves can be filled with recombinant human collagen hydrogel to form protein gel strips.

Preferably, the heat clearing strips and the protein gel strips of the treatment layer are distributed at intervals, and the heat clearing strips contain adsorbents prepared by carbonizing fraxinus chinensis branches and wampee branches.

Preferably, the protein gel strips of the treatment layer are prepared into protein gel solutions according to corresponding formulas, and the protein gel solutions are injected into the grooves between the heat-clearing strips to coagulate to form collagen solids.

Preferably, a protective ring is arranged on the peripheral periphery of the treatment layer, and the protective ring surrounds the heat clearing strip and the protein gel strip, so that two ends of the heat clearing strip and the protein gel strip in the length direction are in a sealing state.

Preferably, the water absorbing layer is arranged in a net structure, and each edge of the water absorbing layer is aligned with the protective ring of the treatment layer, so that the water absorbing layer is fully contacted with the heat clearing strips and the protein gel strips in the treatment layer.

Preferably, the water absorption layer is designed into polyurethane foam sponge with a plurality of holes, and a plurality of polyurethane foam sponges are embedded in the protein gel strip near the tip of the water absorption layer.

Preferably, the isolation layer comprises a fabric layer which is supported by bamboo carbon fibers and has a surface area larger than that of the water absorption layer and a plurality of holes, and a degreasing gauze layer which is coated with a pressure-sensitive adhesive layer close to the surface of the skin of a human body is connected to the periphery of the fabric layer.

Preferably, a release paper is attached to the release layer of the release layer, and seals the pressure-sensitive adhesive layer to the release layer of the release layer.

Preferably, the absorbent gauze layer is also sewed with an elastic fabric, and when the absorbent gauze layer is attached to the skin through the pressure-sensitive adhesive layer, the elasticity of the absorbent gauze layer can better attach the dressing device to the wound surface.

Preferably, the length and width of the protective layer is greater than the therapeutic layer so that the protective layer can be smoothly torn off the therapeutic layer along the excess portion.

The utility model has the advantages that:

the dressing device has the beneficial effects of hemostasis, moisture preservation, infection prevention and the like of common medical dressing, the heat clearing strip arranged on the treatment layer has the efficacy of clearing heat and detoxicating burn wound surfaces, the protein gel strips distributed alternately with the heat clearing strip can accelerate wound surface healing, and the protein gel strips are higher in compatibility with human biological cell tissues and better in healing effect.

Drawings

FIG. 1 is a simplified overall schematic of an applicator device of the present utility model;

FIG. 2 is a simplified cross-sectional schematic of a therapeutic layer of the present utility model;

fig. 3 is a simplified top view schematic of the applicator device of the present utility model.

List of reference numerals

100: a water-absorbing layer; 200: a therapeutic layer; 101: an isolation layer; 102: a fabric layer; 103: a layer of skimmed gauze; 201: a heat clearing strip; 202: a protein gel strip; 203: a protective ring; 204: and (5) a protective layer.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a dressing device of the present application comprising a water absorbent layer 100 for absorbing wound exudates from a burn wound, a treatment layer 200 for assisting in the treatment of a burn wound.

Preferably, the treatment layer 200 is in fit connection with the surface of the water absorption layer 100, which is close to the wound surface, the surface of the treatment layer 200, which is far away from the water absorption layer 100, is in fit connection with the protective layer 204, the surface of the water absorption layer 100, which is far away from the treatment layer 200, is in fit connection with the isolation layer 101, the treatment layer 200 is distributed with a plurality of heat-clearing strips 201 with functions of clearing heat and removing toxicity to the wound surface, the heat-clearing strips 201 form a plurality of grooves on the treatment layer 200, and the grooves can be filled with recombinant human collagen hydrogel to form protein gel strips 202.

The dressing device has the beneficial effects of hemostasis, moisture preservation, infection prevention and the like of the common medical dressing, the heat clearing strip 201 arranged on the treatment layer 200 also has the effect of clearing heat and detoxicating burn wound surfaces, and the protein gel strips 202 distributed alternately with the heat clearing strip 201 can accelerate wound surface healing, wherein the protein gel strips 202 have higher compatibility with human biological cell tissues, and better healing effect.

According to the cross-sectional view of the treatment layer 200 shown in fig. 2, the heat-clearing strips 201 and the protein gel strips 202 of the treatment layer 200 are distributed at intervals, wherein the heat-clearing strips 201 contain an adsorbent prepared by carbonizing fraxinus chinensis branches and wampee branches.

Preferably, the preparation process of the heat-clearing strip 201 is as follows: baking dried cortex Phellodendri and Fraxinus chinensis, pulverizing, and sieving. Specifically, dried branches of wampee tree and branches of ash tree are made into small sections with the length of 5-10mm, then baked, crushed, sieved by a 40-80 mesh sieve, and the obtained mixed powder is made into heat clearing strips 201 with strip structures by using a cross-linking agent.

Preferably, the mass ratio of the wampee tree branch and the ash tree branch for producing the heat removal strip 201 is kept at about 1:1, and can be adjusted appropriately.

Preferably, the thickness of the heat-clearing strip 201 is selected to be 1-1.5mm.

Preferably, the protein gel strips 202 of the therapeutic layer 200 are configured as protein gel solutions according to the respective formulation, and the protein gel solutions are injected into the recesses between the heat removal strips 201 to coagulate the collagen solids formed.

Preferably, the protein gel strip 202 is formed by condensing a protein gel solution, and the protein gel solution adopts recombinant human collagen, sodium alginate, D-glucose, sodium chloride, potassium chloride, disodium hydrogen phosphate dihydrate, sodium bicarbonate, glycine, alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine and the like, which are uniformly mixed, and then is sterilized, wherein the mass proportion of the recombinant human collagen and the sodium alginate is more than that of other components, and the specific proportion can be properly adjusted. Adding the sterilized substances into sterile double distilled water, mixing, heating and dissolving at 60 ℃, and obtaining the recombinant collagen hydrogel.

Preferably, the protein in the protein gel strip 202 can form horny layer of the wound, so that the healing speed of the wound is accelerated, the sodium alginate in the protein gel strip 202 belongs to alginate, and the sodium alginate is natural polysaccharide carbohydrate extracted from the seaweed, is natural cellulose, and has various biological functions of stopping bleeding, resisting infection, preserving moisture, promoting healing, relieving pain and the like.

Preferably, the thickness of protein gel strip 202 is consistent with the thickness of heat clearing strip 201 so that heat clearing strip 201 and protein gel strip 202 of therapeutic layer 200 remain flat and smooth at the surface adjacent the wound.

Preferably, the treatment layer 200 is provided at its circumferential periphery with a protection ring 203, and the protection ring 203 surrounds the heat-clearing strip 201 and the protein gel strip 202 such that both ends of the heat-clearing strip 201 and the protein gel strip 202 in the length direction are in a sealed state.

Preferably, the protective ring 203 of the treatment layer 200 is a silica gel ring made of medical grade silicone oil, and the thickness of the protective ring 203 is consistent with or slightly smaller than the thickness of the protein gel strip 202 and the heat clearing strip 201, so as to avoid the influence on the fitting effect of the treatment layer 200 and the wound surface caused by the overlarge thickness of the protective ring 203.

Preferably, the protein gel strip 202 of the therapeutic layer 200 also retains exudates from the wound surface within the protein gel strip 202.

Preferably, the water absorbent layer 100 is arranged in a mesh structure, with each side of the water absorbent layer 100 aligned with the guard ring 203 of the therapeutic layer 200, such that the water absorbent layer 100 is in sufficient contact with the heat removal strip 201 and the protein gel strip 202 within the therapeutic layer 200.

Preferably, the absorbent layer 100 is designed as a polyurethane foam sponge with holes, and the protein gel strip 202 is embedded with polyurethane foam sponge near the tip of the absorbent layer 100.

Preferably, when a substantial amount of wound exudate is retained within the protein gel strip 202 of the treatment layer 200, the polyurethane foam sponge of the absorbent layer 100 in contact with the protein gel strip 202 will draw excess exudate from the protein gel strip 202 into the polyurethane foam sponge of the absorbent layer 100.

Preferably, the polyurethane foam sponge has a thickness of 0.5 to 1mm, and a plurality of through holes having different pore diameters at both ends are arranged thereon, one end of the through hole having a smaller pore diameter faces the lower surface of the polyurethane foam sponge, and one end of the through hole having a larger pore diameter faces the upper surface of the polyurethane foam sponge.

Preferably, the separation layer 101 includes a fabric layer 102 having a surface area larger than that of the water absorbing layer 100 and having a plurality of holes, and a degreased gauze layer 103 having a pressure sensitive adhesive layer coated on a surface thereof close to the skin of the human body is connected to the periphery of the fabric layer 102.

Preferably, the release paper is attached to the scrim layer 103 of the release layer 101, and seals the pressure sensitive adhesive layer to the scrim layer 103.

Preferably, the elastic fabric is further sewed in the gauze layer 103, and when the gauze layer 103 is attached to the skin through the pressure-sensitive adhesive layer, the elasticity of the gauze layer 103 can better attach the dressing device to the wound surface.

Preferably, the protective layer 204 has a length and width that are greater than the therapeutic layer 200 so that the protective layer 204 can be smoothly torn off the therapeutic layer 200 along the excess portion.

Utilize auxiliary material device of this application to experiment to the subject, wherein the dressing device of this application is adopted to the experimental group to treat the surface of a wound, and the control group adopts other common dressing to treat the surface of a wound, and the subject according to the experiment states that it when using the dressing device of this application, the surface of a wound can obviously feel cool and refreshing and feel, simultaneously, surface of a wound sultry pole and swelling feel are showing and are reducing. Moreover, the experimental result shows that in the stage of wound surface treatment not less than 24 hours, the wound surface healing rate of the subject using the auxiliary material device is improved by about 20% compared with that of the subject using the common dressing at the same time, so that the dressing device has obvious effects on the wound surface healing speed and the comfort level of using the auxiliary material.

It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims (10)

1. An applicator device, the applicator device comprising:

a water-absorbing layer (100) for absorbing wound exudates from a burn wound;

a treatment layer (200) for performing an adjuvant treatment of the burn wound;

wherein, the liquid crystal display device comprises a liquid crystal display device,

the treatment layer (200) with the surface laminating that layer (100) is close to burn surface of wound is connected, the treatment layer (200) is kept away from the surface laminating of layer (100) is connected with inoxidizing coating (204), the surface laminating that layer (100) is kept away from treatment layer (200) is connected with isolation layer (101), treatment layer (200) distributes a plurality of heat clearing strips (201) that have the function of clearing heat and expelling toxin to burn surface of wound, heat clearing strips (201) are in form a plurality of recesses on treatment layer (200), can pour into recombinant human collagen hydrogel into in the recess in order to form protein gel strip (202).

2. The dressing device according to claim 1, characterized in that the heat-clearing strips (201) of the treatment layer (200) are distributed at intervals with the protein gel strips (202).

3. The dressing device according to claim 1, wherein the protein gel strips (202) of the therapeutic layer (200) are collagen solids formed by coagulation of protein gel solutions injected into the grooves between the heat-clearing strips (201).

4. The dressing device according to claim 1, wherein a protective ring (203) is provided on the circumferential periphery of the therapeutic layer (200), and the protective ring (203) surrounds the heat-clearing strip (201) and the protein gel strip (202) such that both ends in the longitudinal direction of the heat-clearing strip (201) and the protein gel strip (202) are in a sealed state.

5. The dressing device according to claim 4, wherein the water absorbing layer (100) is arranged in a mesh structure, each side of the water absorbing layer (100) being aligned with a guard ring (203) of the therapeutic layer (200) such that the water absorbing layer (100) is in sufficient contact with the heat clearing strips (201) and the protein gel strips (202) within the therapeutic layer (200).

6. The dressing device according to claim 5, wherein the water-absorbing layer (100) is designed as a polyurethane foam sponge with holes, and wherein the protein gel strip (202) is embedded with a number of polyurethane foam sponges near the tip of the water-absorbing layer (100).

7. The dressing device according to claim 1, wherein the isolating layer (101) comprises a fabric layer (102) with a surface area supported by bamboo carbon fibers larger than that of the water absorbing layer (100) and a plurality of holes, and a degreasing gauze layer (103) with a pressure-sensitive adhesive layer coated on the surface close to the skin of the human body is connected to the periphery of the fabric layer (102).

8. The dressing device according to claim 7, characterized in that a release paper is attached to the gauze layer (103) of the release layer (101), which release paper seals the pressure-sensitive adhesive layer to the gauze layer (103).

9. The dressing device according to claim 8, wherein an elastic fabric is sewn into the gauze layer (103), and the elasticity of the gauze layer (103) enables a better fitting of the dressing device to a burn wound surface when the gauze layer (103) is fitted to the skin through the pressure-sensitive adhesive layer.

10. The dressing device according to any one of claims 1 to 9, wherein the protective layer (204) has a length and a width which are greater than the treatment layer (200) such that the protective layer (204) can be torn off smoothly over the treatment layer (200) along the excess portion.