8 results about "Wound skin" patented technology

This utility model relates to the field of negative pressure drainage technology, specifically a portable negative pressure drainage device, comprising a negative pressure source instrument, a dressing, and a drainage component. The negative pressure source instrument and the dressing are connected and cooperate through the drainage component to form a negative pressure environment to absorb fluid flowing from the patient's skin. The dressing includes a sponge layer, a baffle, and an adhesive layer. The adhesive layer adheres to the patient's skin, and the baffle corresponds to the wound area of ​​the patient's skin. The side of the baffle facing the patient's skin is used to place wet dressing medication, and the side of the baffle away from the patient is connected to the sponge layer. A gap exists between the side of the baffle facing the patient's skin and the patient's skin. The baffle is provided with ventilation holes to connect the gap between the sponge layer, the baffle, and the patient's skin. The sponge layer is used to absorb bodily fluids flowing from the patient's skin. This utility model utilizes the gap between the baffle and the patient's skin to reduce tearing of the patient's wound skin when changing or removing the dressing, thereby reducing the patient's pain.

The invention discloses an antibacterial hydrogel dressing taking spunlace non-woven fabric as a carrier and a preparation method of the antibacterial hydrogel dressing, and relates to the technical field of biomedical polymers. The antibacterial hydrogel dressing is composed of a spunlace non-woven fabric carrier layer and an antibacterial hydrogel functional layer loaded on the surface and in pores of the spunlace non-woven fabric carrier layer, and the preparation method comprises the following steps: sterilizing spunlace non-woven fabric to obtain a spunlace non-woven fabric carrier; adding the antibacterial component into the aqueous solution of the hydrophilic polymer base material to form a hydrogel precursor solution; and immersing the spunlace non-woven fabric carrier into the hydrogel precursor solution, and curing to obtain the antibacterial hydrogel dressing. The antibacterial hydrogel dressing prepared by the preparation method disclosed by the invention has the flexible breathable characteristic of spunlace non-woven fabric and the high swelling and antibacterial functions of hydrogel, has an excellent bactericidal effect on escherichia coli and staphylococcus aureus, can effectively promote healing of infected wounds, is suitable for clinical nursing of burn and traumatic skin injuries, and has wide application prospects. Wide clinical application prospects are realized.

This application provides a high-voltage electrochemical composite hydrogel for wound skin repair and its preparation method. The high-voltage electrochemical composite hydrogel is prepared by using hydroxyethyl cellulose and acrylamide monomers as raw materials to form an interpenetrating network structure. Polyvinylidene fluoride (PVDF) and ZnO nanowires are used as piezoelectric materials, and are formed by interweaving PVDF and ZnO nanowires within the hydrogel. This high-voltage electrochemical composite hydrogel significantly improves the crystallization orientation and polarization efficiency of PVDF through mechanical stretching and polarization, resulting in an order-of-magnitude improvement in the piezoelectric properties of the composite hydrogel. Simultaneously, it retains the excellent flexibility and biocompatibility of the hydrogel, showing broad application prospects in flexible sensors, self-powered devices, and human-computer interfaces.

The invention relates to the technical field of medical auxiliary appliances, in particular to an intelligent wound classification and treatment auxiliary device applying an image recognition chip, which comprises a scanning bed, a base is arranged on one side of the scanning bed, a universal bracket is rotatably connected to the base, a rectangular frame is rotatably connected to the universal bracket, and a plurality of image recognition chips are arranged on the rectangular frame. A wound diagnosis and measurement assembly is arranged on the rectangular frame, a wound scanning assembly is arranged on the wound diagnosis and measurement assembly, the wound scanning assembly is arranged on the rectangular frame, the wound scanning assembly is driven by the wound diagnosis and measurement assembly to move freely, and during measurement, the universal support is adjusted to enable the frame to be parallel to wound skin; the laser transmitter is started, the light spot is aligned with one end of the wound, the imaging assembly moves along the wound, the computer records the moving distance in real time, the actual arc length of the curved suture wound can be accurately obtained, the defect that only the straight chord length can be measured through a traditional ruler shooting method is overcome, and the measurement precision of the curved wound length is remarkably improved.

Provided herein are secretory compositions / cocktails derived from a novel, extremophilic fungal species cultured, isolated, and characterized herein. Said novel, extremophilic fungal species may be exploited to produce secretory compositions / cocktails which comprise a unique mixture of thermo-tolerant, stable enzymes capable of digesting cellular and genetic material in its surroundings under extreme temperatures. Such secretory compositions / cocktails may be useful as cleaning and sterilization solutions against biofilm, urine, yeast, bacterial, or viral contamination. Other uses include, but are not limited to, urea removal, fertilizer wastewaters, wastewater reclamation for life support systems in space, pH control, source of ammonia and carbon dioxide, starch digestion, biofuel production, as pharmaceuticals, and medical treatments such as wounds, skin disorders, or nail disorders.

The invention relates to the technical field of medical instruments, and particularly discloses a gel smearing device for wound skin repair, which comprises a holding block and a smearing mechanism, the smearing mechanism comprises a medicine cylinder and smearing assemblies symmetrically arranged in the width direction of the medicine cylinder. The medicine cylinder is fixedly connected with the holding block; the smearing assembly comprises a side shaft, a side block, a hollow disc, smearing cotton, a hollow cylinder, a medicine discharging box, a medicine discharging pipe, a piston cylinder, a piston block, a medicine discharging hole formed in the medicine discharging box, a driving part used for driving the side shaft to rotate, and a power part used for driving the piston block to do vertical reciprocating motion. The side shaft is rotationally connected with the pesticide barrel; two ends of the side block are fixedly connected with the side shaft and the hollow disc respectively; the coating cotton is detachably connected with the hollow disc; two ends of the hollow cylinder are fixedly connected with the pesticide cylinder and the lower pesticide box respectively; two ends of the medicine feeding pipe are respectively communicated with the medicine cylinder and the medicine feeding box; the piston cylinder is fixedly connected with the lower pesticide box; the piston block is slidably connected with the piston cylinder. The problem that an existing medicine applying device cannot evenly apply medicine to an affected part is solved.

The invention relates to the technical field of medical instruments, in particular to a thoracic surgery postoperative drainage tube fixing structure. Comprising a fixed paste fixedly connected with a fixed shell, a first movable shell slidably connected to the fixed shell, and a second movable shell slidably connected to the fixed shell. The mounting shell is fixedly connected to the first moving shell; the number of the first moving frames and the number of the second moving frames are both multiple, the first moving frames are fixedly connected to the fixing paste, the second moving frames are fixedly connected to the first moving shell, and the first moving frames are in sliding connection with the corresponding second moving frames; buffering blocks are fixedly connected between the first moving frame and the first moving shell and between the second moving frame and the fixing paste. Pressure acting on the drainage tube is converted into gentle displacement through the buffer block, and compression and pain on wound skin of a patient are relieved; meanwhile, the installation shell directly protects the pipeline from being pressed and folded, integral buffering is combined to ensure smooth drainage, and clinical risks caused by pipeline blockage are prevented.

The invention provides a collagen dressing for promoting wound healing and a preparation method thereof. The dressing is prepared from the following raw materials in parts by weight: 20 to 26 parts of collagen peptide, 17 to 21 parts of mussel extract, 6 to 9 parts of keratin, 6 to 9 parts of sodium alginate, 4 to 7 parts of peptidoglycan, 1 to 3 parts of polypeptide, 18 to 23 parts of polysaccharide, 16 to 20 parts of compound plant extract, 8 to 13 parts of sodium hyaluronate, 7 to 11 parts of gelatin, 8 to 12 parts of carbomer, 7 to 10 parts of glycerinum, 0.002 to 0.004 part of preservative and 66 to 80 parts of water. The collagen peptide, the mussel extract, the keratin, the peptidoglycan, the polypeptide, the polysaccharide, the composite plant extract, the sodium hyaluronate and other raw materials are reasonably matched and used, so that a protective layer can be formed on a wound surface, exudate of the wound is effectively absorbed, good anti-inflammatory and antibacterial effects can be achieved, invasion of external harmful germs can be effectively resisted, and the wound healing effect is good. The cell activity can also be improved, wound skin cell regeneration is promoted, wound healing is helped, and the wound healing time is effectively shortened.