83 results about "Hydrocolloid dressing" patented technology

The invention relates to the technical field of medical materials, in particular to a hydrocolloid dressing and a preparation method thereof.The hydrocolloid dressing comprises a base film, a functional layer and release paper which are sequentially stacked; the functional layer is prepared from the following raw material components in parts by weight: 15 to 45 parts of sodium carboxymethyl cellulose; 1-5 parts of an aluminum-containing hemostatic; 3-20 parts of an alkaline antibacterial agent; and 30-70 parts of a viscous substance. According to the hydrocolloid dressing provided by the invention, through the synergistic effect of the aluminum-containing hemostatic agent and the alkaline antibacterial agent in the functional layer, the hemostatic performance of the hydrocolloid dressing is improved, and meanwhile, the hydrocolloid dressing is beneficial to protecting a wound, inhibiting microorganism growth at the wound and promoting wound healing.

The utility model relates to the technical field of medical dressing production equipment, and discloses a hydrocolloid dressing stock solution feeding device which comprises a feeding body mechanism. The feeding pipeline mechanism is arranged on the feeding body mechanism, the feeding body mechanism comprises a hopper, a connecting column is fixedly connected to the center of the bottom wall of the hopper, a fixing frame is fixedly connected to the bottom wall of the connecting column, and four first pipe grooves are annularly formed in the inner bottom wall of the hopper at equal intervals. The feeding hopper is integrally arranged, the four first pipe grooves are annularly formed in the inner bottom wall of the feeding hopper at equal intervals, the spiral pipes are fixedly installed in the first pipe grooves, the spiral pipes are transparent pipe bodies, and the control valves are fixedly installed at the openings in the bottoms of the spiral pipes. The hydrocolloid dressing stock solution to be fed can be comprehensively observed, and meanwhile independent control operation can be conducted on a single feeding pipeline.

The utility model provides a novel allergy-free electrocardio-electrode slice which comprises a base lining, an installation slice, a core head and an electrode buckle, the shape of the base lining is not limited to a circle and a polygon, the core head is installed on one side of the base lining, the electrode buckle is installed on one side of the installation slice, and the installation slice is installed on the other side of the base lining in a bonding mode. The hydrocolloid dressing layer and the liquid dressing layer are arranged on the side, located on the core head, of the base lining, the hydrocolloid dressing layer does not irritate the skin, and therefore compared with pressure-sensitive adhesive in the prior art, the probability of allergic reaction of a patient can be effectively reduced, the core head is wrapped by the arranged liquid dressing layer, and the probability of allergic reaction of the patient can be effectively reduced. Therefore, the core head can be prevented from being in direct contact with the body surface of a patient, the risk of allergic reaction caused by allergy of the patient to the material of the core head is reduced, and the risk of allergic reaction caused by the use of the electrode plate by the patient can be effectively reduced through the dual protection effects of the hydrocolloid dressing layer and the liquid dressing layer.

The application discloses a preparation method of a hydrocolloid dressing for oral cavity, and relates to the technical field of medical supplies. Baicalin extract and a polyvinyl pyrrolidone solution are mixed to obtain a baicalin extract solution; chitosan fibers, hydroxymethyl cellulose and the baicalin extract solution are mixed to obtain a mixed solution; vacuum degassing: the prepared mixed solution is vacuumized, pressure is maintained, and primary degassing is performed; ultrasonic degassing: the mixed solution after primary degassing is subjected to ultrasonic degassing; static degassing: the solution after ultrasonic degassing is sealed by using a preservative film, and is subjected to secondary degassing at room temperature; a PU film is fixed in a film laying frame, the degassed mixed solution is poured into the film laying frame, and the film laying frame is placed into an air-blowing drying box to solidify and form a protective layer, so that the hydrocolloid dressing is obtained. The hydrocolloid dressing prepared by the method has good adhesion, can be used on a wound for a long time, and can effectively promote the repair of damaged cells and wounds, so that the healing of the wound in the oral cavity is promoted.

The utility model provides a kind of water colloid dressing surface gel's coating device, including rack, be set on the coating channel of rack and be set in the substrate conveying mechanism of coating channel;The feed end of substrate conveying mechanism connects base material frame, and the discharge end of substrate conveying mechanism connects split charging equipment;The top surface inside coating channel is provided with injection mechanism and spreading mechanism, injection mechanism is close to the feed end of substrate conveying mechanism, and spreading mechanism is close to the discharge end of substrate conveying mechanism;The discharge port of injection mechanism and spreading mechanism are opposite the centre line of substrate;The outside of coating channel is provided with water colloid storage tank, and water colloid storage tank connects injection mechanism to feed injection mechanism.The water colloid dressing surface gel's coating device has the advantages that design science, operation is simple, coating effect is good, and can be used for dressing production process.

The utility model discloses a child nasal oxygen cannula convenient to fix, which comprises a nasal oxygen cannula, a fixing structure is arranged on one side of the nasal oxygen cannula, a position-adjustable lantern ring is further arranged on one side of the nasal oxygen cannula, and an ear hook structure is arranged on the lantern ring. The fixing structure comprises a bearing part, the bearing part is arranged on one side of the outer surface of the nasal oxygen cannula, a fixing buckle used for fixing the nasal oxygen cannula is arranged at the bottom of the bearing part, breathable bonding parts are symmetrically arranged on the two sides of the bearing part, and hydrocolloid dressing is arranged on one side of each breathable bonding part. The breathable bonding part and the hydrocolloid dressing are combined and bonded to the upper lip of a child patient, the situation of looseness caused by excessive respiratory tract secretions can be prevented, the bonding stability is improved, replacement is not needed, the overall use comfort is high, the device can be fixed to the ear of the child, falling is not likely to be caused, and meanwhile the device can be fixed to the upper lip of the child patient according to the requirement. The earphone is fixed on a left ear or a right ear of a child.

The utility model discloses an electrocardio electrode slice, which comprises a substrate and an electrode arranged in the middle of the substrate, and is characterized in that one side of the substrate is coated with a hydrocolloid dressing layer, the electrode comprises a bottom buckle and a son buckle, and the bottom buckle penetrates through the substrate and the hydrocolloid dressing layer and is fixedly buckled with the son buckle; the side, away from the son buckle, of the bottom buckle is covered with a biological ion gel layer. The utility model has the advantages that the structure is reasonable, the skin irritation is smaller, the use comfort can be improved, and the like.

The utility model discloses an anti-adhesion antibacterial hydrocolloid dressing patch, which relates to the technical field of medical dressings and comprises a dressing patch main body, and an anti-diffusion covered edge and an auxiliary patch which are sequentially arranged on the edge of the dressing patch main body from inside to outside, release paper is arranged on the sides, facing the skin, of the dressing patch body and the auxiliary patch. The dressing patch body is sequentially composed of a hydrocolloid base layer, an alginate dressing core layer and a covering layer film from inside to outside, and every two of the hydrocolloid base layer, the alginate dressing core layer and the covering layer film are tightly bonded through pressure-sensitive adhesive. An antibacterial layer is arranged in the hydrocolloid base layer, and through holes are formed in the hydrocolloid base layer and the antibacterial layer; the dressing patch does not adhere to a wound and can absorb a large amount of seepage, meanwhile, a wet healing environment is provided for the wound, and the dressing patch has an antibacterial effect and can effectively promote wound healing.

The utility model discloses a dressing changing and dressing device for a neck anastomotic fistula after an esophageal cancer operation, which comprises a hydrocolloid dressing and a catheter, and a catheter body of the catheter is fixed with the hydrocolloid dressing through a catheter fixing piece. The hydrocolloid dressing has the beneficial effects that the hydrocolloid dressing is convenient for the catheter to pass through the formed one-way hole, and selectively passes through the one-way hole at the corresponding position according to the anastomotic fistula part of a patient, so that the operation is convenient, the front end of the catheter is further inserted into the anastomotic fistula, the dressing change or flushing on the anastomotic fistula part of the patient is realized, and the operation is convenient. According to the dressing device, dressing change and flushing at the anastomotic stoma of a patient can be facilitated, drainage can be smooth, and the dressing device is convenient to use, simple in structure, convenient to use and high in practicability. Meanwhile, damage of exudation of secretions to surrounding skin tissues is relieved, and fistula healing is promoted.

The utility model relates to the technical field of hydrocolloid dressings, in particular to an anti-wound area liquid hydrocolloid dressing. The utility model comprises main release paper, the upper end of the main release paper is provided with a hydrocolloid layer, a hydrocolloid punching layer is arranged above the hydrocolloid layer, an alginate layer is arranged above the hydrocolloid punching layer, and the alginate layer wraps the edges of the hydrocolloid layer and the hydrocolloid punching layer; the upper end of the hydrocolloid punching layer is provided with a plurality of connecting differential hole plum blossom, the inner top wall of the alginate layer is fixedly connected with a plurality of alginate cylinders, and the alginate cylinders are inserted into the connecting differential hole plum blossom; a backing layer is arranged above the alginate layer, and the backing layer is bonded with the main release paper; the alginate layer is in contact with seepage at the cylindrical portion of the alginate, due to the high hygroscopicity of the alginate, redundant hydrops can be rapidly absorbed, and the conditions of skin edema and the like caused by too much seepage at the joint of the hydrocolloid layer and the wound surface are avoided.

The invention relates to the technical field of medical supplies, and discloses a disposable bandage convenient for urination after circumcision, the disposable bandage comprises a bandage body, two symmetrically arranged flexible raised strips are fixedly mounted on the bandage body, a urination gap is arranged between the two flexible raised strips, and the two flexible raised strips are fixedly mounted on the bandage body. The surface of the flexible protruding strip is fixedly connected with a hydrocolloid dressing layer. The thickness of each flexible protruding strip is set to be X, and the value of X approaches to zero in the direction where the two flexible protruding strips are away from each other. The bandage can achieve incision hemostasis and provide a good environment for incision healing, the hemostasis effect and binding comfort are both considered, a stable and smooth urination channel is reserved, the situation that the bandage extrudes the urethra is effectively avoided, the urethra is protected against damage, the postoperative urination experience of a patient is improved, and the occurrence rate of complications is reduced.

1. The name of the design product: hydrocolloid adhesive plaster (pattern). 2. The use of the design product: the design product is used for protecting skin wounds. 3. The design points of the design product: the combination of shape and color. 4. The picture or photo that best indicates the design points: front view. 5. The design for which protection is sought contains color. 6. The back of the design product is a part that is not easily seen or not seen during use, so the rear view is omitted; the design product is a thin product, so the top view is omitted; the design product is a thin product, so the bottom view is omitted; the design product is a thin product, so the left view is omitted; the design product is a thin product, so the right view is omitted.

The utility model discloses an anti-drop child patient face oxygen mask assembly, which comprises a mask body and two fixing pastes, the skin-attaching surfaces of the fixing pastes are made of hydrocolloid dressings, the two skin-attaching surfaces of the fixing pastes are respectively adhered to the cheeks on the two sides of a child patient, the fixing pastes are provided with supports capable of generating elastic deformation, the outer ends of the supports are detachably connected to the mask body, and the outer ends of the supports are detachably connected to the mask body. The outer ends of the fixing paste supports on the two sides are pressed on the two side edges of the mask body through the elastic force effect, so that the mask body is tightly attached to the face of the child patient. The two fixing pastes are adhered to the cheeks on the two sides of a child patient, and the mask body is pressed on the mouth and the nose of the child patient through the elastic action of the fixing paste support, so that the mask body is tightly attached to the face of the child patient, and the situation that the mask body falls off due to disordered shaking of the child patient is prevented; moreover, the cover body is convenient to disassemble and assemble, and is suitable for bedridden children to eat and drink water.

The invention provides a rare-earth-based growth factor ReO-Ac, a hydrocolloid dressing and a preparation method thereof.The rare-earth-based growth factor ReO-Ac is prepared by reacting a reaction solution with a rare-earth nitrate compound solution and a buffer solution as raw materials at the temperature of 100-150 DEG C. The buffer solution comprises acetic acid, sodium acetate and a solvent. The mass ratio of sodium acetate to acetic acid is (0.5-2): 1. The rare earth-based growth factor disclosed by the invention can remove free radicals in a long-acting and lasting manner, provides a favorable environment for a wound to absorb nutrient substances, improves the absorption efficiency of the nutrient substances in a tissue repair process, and integrally improves the human tissue repair speed.

The present application relates to a hydrocolloid composition comprising a block copolymer, a plasticizer, a tackifying resin and a viscous polysaccharide. The hydrocolloid composition can be used to prepare a hydrocolloid dressing with higher liquid absorption and tack retention, and can remove old and worn-out keratin on the surface of the skin, and has excellent exfoliation effect.

The utility model belongs to the technical field of oxygen uptake tube fixation, and particularly relates to a fixing device for a pediatric oxygen uptake tube, which is characterized in that an elastic strap is pulled, a hydrocolloid dressing is attached to a nose wing, a nose wing tube of an oxygen uptake tube body is aligned to nostrils on two sides, and an air inlet tube of the oxygen uptake tube body faces upwards to form a C shape; the second hydrocolloid dressing is vertically attached to the two sides of the nose wing tube to form an I shape with the nose, in order to avoid air leakage at the nostril, a worker can rotate the connecting rod along the inner side of the support, the connecting rod drives the rubber rod at the bottom to swing inwards along the nose wing tube, the rubber pad can be attached to the outer side of the nostril, and the nose wing tube is effectively prevented from falling off from the nostril. The hydrocolloid dressing is a semitransparent self-adhesive dressing composed of a water-like adhesive, a covering layer thin film and a binder, is breathable, waterproof and anti-bacterial, can promote wound healing and effectively protect skin, and can avoid pressure sores through air and water vapor due to the fact that the upper layer of the hydrocolloid dressing is a semi-permeable membrane composed of polyurethane.

The utility model discloses a kind of packing equipment for hydrocolloid patch production, the utility model relates to medical patch production technical field.The packing equipment for hydrocolloid patch production, it includes: rack, rack is fixedly installed with the conveying belt for continuously conveying hydrocolloid patch;Collection piece, collection piece is set below rack, collection piece is used to place the packaging bag for packing and handling hydrocolloid patch;Bag opening open subassembly, bag opening open subassembly is fixedly installed on rack, bag opening open subassembly is used to open the bag opening of packaging bag, form opening, facilitate hydrocolloid patch to be smoothly loaded;Through collection groove accurate positioning to packaging bag, open claw stable open bag opening, the guide system formed by ridge platform guide piece and guide plate, ensure that patch falls into bag along fixed trajectory, reduce patch scattering, misloading phenomenon, guarantee every bag patch quantity accurate, complete packaging.

The application provides a hydrocolloid dressing and an arteriovenous fistula wound dressing and application thereof, and belongs to the technical field of medical dressings.The preparation raw materials of the hydrocolloid dressing include SEBS thermoplastic elastomer, chitosan quaternary ammonium salt, polyanionic compound, tackifying resin, antioxidant and thymol.The chitosan quaternary ammonium salt and thymol in the hydrocolloid dressing synergize to achieve good bacteriostatic effect;simultaneously, the hydrocolloid dressing can effectively absorb wound exudate and promote wound healing.The gauze in the arteriovenous fistula wound dressing can keep the wound dry, the far infrared physiotherapy patch can relieve swelling and vascular spasm, reduce the pain of patients, and is favorable for clinical popularization and application.

The invention relates to the technical field of medical dressings, in particular to a hydrocolloid dressing which comprises a slow-release hydrocolloid layer. The slow-release hydrocolloid layer is prepared from the following raw material components in parts by weight: 10 to 35 parts of sodium carboxymethyl cellulose; 5 to 15 parts of copper-containing microspheres; 40 to 70 parts of hot melt adhesive; the copper-containing microsphere comprises a core body and a shell body coated on the outer side of the core body, the core body is a copper-loaded microsphere; the shell comprises a sodium alginate-calcium carbonate composite layer. According to the hydrocolloid dressing provided by the invention, the copper-containing microspheres with core-shell structures are introduced, so that the release of the copper ions has pH responsiveness, gradient slow release and long-acting antibiosis of the copper ions can be realized, and the healing promoting function of the hydrocolloid dressing is effectively improved.

The application provides a hydrocolloid dressing and a manufacturing method thereof, which solves the technical problem that the water absorption of a single-layer hydrocolloid is not strong and the use experience is poor, and mainly comprises a substrate film, a hydrocolloid and a release layer. The substrate film is a single-layer or multi-layer structure; the hydrocolloid is a composite material, the main body of which is an adhesive and a water absorbent; and the release layer is release paper or a release film. Through the improved processing technology, the hydrocolloid with a structure of a partially semi-coated structure of water absorbent particles is obtained, so that sufficient expansion space of the water absorption material is ensured, sufficient adhesion points and activity space of the adhesive material are provided, the separation of the hydrocolloid and the substrate is reduced, the overall absorption of the permeated liquid is improved, and the application can be widely used in the technical field of medical dressings.

The utility model relates to the technical field of medical dressing articles, in particular to a vein protection type hydrocolloid dressing indwelling needle pasting film which comprises a positioning plate which is a transparent thin plate, and a transparent nanometer adhesive film is arranged at the bottom of the positioning plate. The transparent film is arranged in the center of the bottom of the positioning plate and is attached to the positioning plate through the nano adhesive film, and a medical non-setting adhesive layer is arranged at the bottom of the transparent film; the release paper is matched with the outline of the positioning plate, the middle of the release paper is attached to the transparent film through the medical non-setting adhesive layer, and the edge of the release paper is attached to the positioning plate through the nano adhesive film. According to the utility model, accurate positioning is carried out before pasting with the skin of a patient, so that a better protection effect is achieved, and meanwhile, the hydrocolloid also nurses the skin at the indwelling needle.

The utility model relates to the technical field of medical treatment, in particular to an anti-leakage device for local closed injection liquid of skin, which comprises a closed pad, a cavity is arranged in the middle of the right end of the closed pad, a sticking layer is fixedly connected around the right end of the closed pad, a tearing device is adhered to the right end of the sticking layer, and the tearing device is connected with a sealing pad. The cavity is filled with an absorption device, and a net body is fixedly connected to the middle of the right end of the sealing pad. The absorption device comprises a hydrocolloid dressing block, the outer surface of the hydrocolloid dressing block is fixedly connected with an elastic layer, and the cavity is filled with the hydrocolloid dressing block. According to the liquid seepage prevention device for the local closed injection of the skin, the tearing device and the absorption device are arranged, so that liquid seepage during local closed injection of the skin can be effectively prevented, the infection risk is reduced, a stable and reliable environment is provided for various types of injection treatment, and the treatment effect is guaranteed.

The invention provides a method and system for detecting wound protection performance of hydrocolloid dressing, and relates to the technical field of performance detection.The method comprises the steps that basic information of the hydrocolloid dressing is obtained; obtaining a historical test log set based on the dressing component type list and the protection performance indexes; performing single-population component proportion optimization to generate a first dressing component proportion particle set; preparing a hydrocolloid dressing sample and executing a test to obtain a first test log set; when any test log meets the protection performance expectation index, outputting dressing component target proportion information; when any test log does not meet the protection performance expectation index, receiving a second dressing component proportion particle set and a second test log set; and performing double-population component proportion optimization to obtain a third dressing component proportion particle set, and returning to execute cycle performance detection. The technical problem of low detection efficiency in the prior art can be solved, and the technical effect of improving the detection efficiency is achieved.

The utility model provides a lip protection device in an intraoral approach operation, which comprises an adjusting arm and a lip nesting sleeve, the adjusting arm is connected with the lip nesting sleeve through a support, and the support is detachably matched with the lip nesting sleeve; the lip nest comprises an elastic layer for supporting the lip and a hydrocolloid dressing layer arranged between the elastic layer and the lip contact surface; the detachable elastic silica gel layer and the hydrocolloid dressing layer are arranged to replace a conventional metal lip nest, the comfort level of a user can be greatly improved, especially for the user needing to keep the mouth in an open state for a long time, the hydrocolloid dressing layer can keep the wettability of the contact face of the lip nest and the mouth for a long time, and the lip nesting effect is improved. The risk of soft tissue tearing and contusion is reduced; the support is detachably matched with the lip nesting sleeve, so that the elastic silica gel layer and the hydrocolloid dressing layer can be used as disposable materials, safety can be improved under the condition that sufficient disinfection conditions are not provided, and cross infection is avoided.

The integrated umbilical arteriovenous catheter fixing patch comprises a base body and a covering film, the base body is made of hydrocolloid dressing, and the covering film is made of transparent film dressing. The bottom surface of the base body is adhered to the skin surface of a patient, the catheter placing surface comprises an in-out buckle and a winding buckle, the in-out buckle and the winding buckle are fixedly connected with the base body, and the catheter is fixed on the base body; a guide structure, a support column and a support boss are arranged on the tube placing surface; the guide structure comprises a plurality of circular ring-shaped concentric guide grooves or guide bulges and is used for guiding the conduit to arrange wires; the supporting columns and the supporting bosses are used for supporting the guide pipe and limiting the guide pipe from deviating outwards. The catheter is pasted and fixed to the base body through the covering film. The utility model belongs to the technical field of medical treatment, is used for fixing an umbilical vein catheter and / or an umbilical artery catheter, and has the advantages of good fixing effect, simple structure and high comfort.

The utility model relates to the technical field of anal incontinence assistive devices, and discloses a collection assembly for anal incontinence patients, which comprises a hydrocolloid dressing piece, an excretion opening is formed in the middle of the hydrocolloid dressing piece in a penetrating manner, the excretion opening is used for directly facing the anus of the patient, and the hydrocolloid dressing piece is provided with a drainage opening. An excrement collecting bag is adhered to a non-dressing layer of the hydrocolloid dressing piece and is opposite to a discharge port of the excretion port, the excrement collecting bag is communicated with the interior of the excretion port, and a V-shaped notch is formed in the top of the excretion port. According to the collection assembly for the patient suffering from the anal incontinence, the collection assembly is composed of the hydrocolloid dressing piece and the excrement collection bag, the hydrocolloid dressing piece is attached to the skin to protect and repair the skin, when the patient defecates, excrement enters the excrement collection bag through an excretion opening to be collected, the situation of incontinence dermatitis can be avoided, and the collection assembly is convenient to use. The amount of the excrement liquid is accurately measured, and meanwhile, the workload of nursing personnel is reduced.

The invention relates to the related technical field of medical auxiliary equipment, in particular to a nose plug for a noninvasive ventilator, the nose plug comprises pasting wings and a base, two sides of the base are respectively connected with different pasting wings, a pressure channel for supplying air to a nasal cavity is arranged on the base, and the pressure channel is communicated with the nasal cavity. The pressure channel located on the top face of the base is communicated with an airflow pressure output hole in the tail end of the noninvasive ventilator, and an airflow output port located in the side face of one end of the base extends into the nasal cavity through the pressure channel to maintain positive pressure output of the tail end of the noninvasive ventilator. The pasting wings are arranged to be pasted on the cheek and the skin between the nasolabial space to fix the base instead of a binding rope to fix the base, operation is easy and convenient, and the problems that fixing through the binding rope is troublesome, prone to loosening, translocation and deformation, uncomfortable in tightness and bruised in nasal septum, a thin rope for fixing is prone to breeding bacteria, and the infection risk of newborns in a hospital is increased are solved; in addition, the viscosity of the hydrophilic hydrocolloid dressing is reduced under the action of the lubricating liquid, so that the hydrophilic hydrocolloid dressing is convenient to tear and peel off.

1. The name of the design product: hydrocolloid adhesive plaster (square). 2. The use of the design product: the design product is used for protecting skin wounds. 3. The design points of the design product: the combination of shape and color. 4. The picture or photo that best indicates the design points: front view. 5. The design for which protection is sought contains color. 6. The back of the design product is a part that is not easily seen or not seen during use, so the rear view is omitted; the design product is a thin product, so the top view is omitted; the design product is a thin product, so the bottom view is omitted; the design product is a thin product, so the left view is omitted; the design product is a thin product, so the right view is omitted.

The utility model relates to the technical field of burn application, and discloses a burn application convenient to replace, which comprises an application body, a waterproof breathable cloth and a connecting cloth, a glue patch is fixedly arranged at the edge of the lower end of the application body, a through groove is formed in the middle of the upper end of the application body, and a hydrocolloid dressing is fixedly arranged at the lower end of the connecting cloth. Three elastic bands are fixedly arranged on each of the two sides of the patch body, connecting bands are fixedly arranged at the opposite ends of the six elastic bands in pairs, first hook-and-loop fastener son surfaces are fixedly arranged at the lower ends of the three connecting bands, and first hook-and-loop fastener mother surfaces are fixedly arranged at the upper ends of the other three connecting bands. According to the patch, the waterproof breathable cloth which can be torn independently is arranged, hydrocolloid dressing for treatment is placed in the patch to treat a patient, after the patch is used, the waterproof breathable cloth can be opened to be replaced with new hydrocolloid dressing, and the patch body does not need to be frequently torn down and then adhered to avoid secondary damage to the patient by colloid.

The utility model discloses a hydrocolloid dressing, and belongs to the technical field of medicine. The composite material comprises a base material layer, an annular non-woven fabric and a hydrocolloid matrix, the outer base material layer is a polyurethane film; the hydrocolloid matrix and the annular non-woven fabric are positioned on the lower surface of the outer base material layer and are adhered to the outer base material layer through a pressure-sensitive adhesive; the hydrocolloid matrix is located in an area defined by the annular non-woven fabric; the lower surface of the hydrocolloid matrix and the lower surface of the annular non-woven fabric are both provided with an adhesive layer, and the adhesive layers are isolated through a protective layer. According to the hydrocolloid dressing, the overall structural strength and the holding power of the hydrocolloid dressing can be improved.