41results about How to "Heal fast" patented technology

The invention provides milk exosome composite hydrogel as well as a preparation method and application thereof, and belongs to the technical field of medical materials. The milk exosome composite hydrogel provided by the invention is prepared from milk exosome, hyaluronic acid, epsilon-polylysine, 3-aminophenylboronic acid and tannic acid. The exosome is extracted from milk of a non-stem cell source; the molecular weight of the hyaluronic acid is 200 to 400 KDa. The invention provides a hydrogel carrier capable of loading a large amount of milk exosomes, and the hydrogel carrier can continuously release a large amount of milk exosomes and can give full play to the anti-oxidation and inflammation inhibition effects of the milk exosomes. In the aspect of wound healing, the milk exosome and the hydrogel carrier have a synergistic effect, so that the healing effect can be remarkably improved, and the healing period is shortened.

The invention discloses a collagen-based and high-transparency matrix for cornea thickening and a preparation method of the collagen-based and high-transparency matrix. The preparation method comprises the following steps: assembling a collagen composite solution into a collagen matrix implant on a set curvature mold through electrochemical deposition; the collagen composite solution is prepared from collagen, glacial acetic acid, hydrogen peroxide, heparin and water; putting the obtained collagen matrix implant and a mold into a cross-linking agent solution for cross-linking; cleaning the residual cross-linking agent after completion, separating the collagen matrix implant from the mold, and placing the collagen matrix implant under an ultraviolet light source for cross-linking to obtain a double-cross-linked collagen matrix implant; and soaking the double-crosslinked collagen matrix implant in a nerve growth factor solution, and performing absorption and combination to obtain the collagen-based and high-transparency matrix for cornea thickening. According to the invention, an electro-deposition assembly technical scheme is adopted, the diameter and thickness of collagen assembly fibers are adjusted and controlled through electric field energy, and the collagen assembly fibers are orderly and regularly arranged, so that scattering and refraction of light are reduced, the light transmittance of cornea is increased and can reach more than 90%, and the problem of light blocking caused by materials is effectively avoided. Operation is matched with femtosecond equipment, operation is easy, consumed time is short, and trauma is small.

The invention discloses a microneedle patch loaded with vancomycin and a gold / zinc cerium composite nanomaterial and application of the microneedle patch in abscess wound treatment, the microneedle patch comprises a backing layer and a needle body array arranged on the backing layer, the backing layer and the needle body array are formed by an aqueous solution of a degradable polymer, vancomycin and a gold / zinc cerium composite nano material are loaded in an aqueous solution of the degradable polymer for forming the needle body array. According to the microneedle patch disclosed by the invention, based on the photo-thermal synergistic effect of the antibiotics and the gold / zinc-cerium composite nanomaterial, rapid healing of abscess wounds is realized from the aspects of inhibiting growth of bacteria, relieving oxidative stress, promoting angiogenesis and the like.

The invention discloses a negative pressure drainage device for recto-vaginal fistula; it includes a vaginal drainage tube, a rectal drainage tube and a negative pressure suction tube for recto-vaginal fistula; the outer wall of the vaginal drainage tube is provided with a first air bag and a second air bag near its upper end; the outer wall of the vaginal drainage tube is provided with a drainage port between the first air bag and the second air bag; the vaginal drainage tube is provided with a first drainage cavity and a second drainage cavity; the upper part of the first drainage cavity is connected with the upper end of the vaginal drainage tube; the upper part of the second drainage cavity is connected with the drainage port; the outer wall of the rectal drainage tube is provided with a third air bag and a fourth air bag near its upper end; the negative pressure suction tube for recto-vaginal fistula is inserted into the second drainage cavity, and its upper end passes through the drainage port to form a negative pressure drainage part inserted into the patient's recto-vaginal fistula. Beneficial effect: after the patient's vagina, rectum and recto-vaginal fistula are completely fixed, the present application can seal the recto-vaginal fistula in all directions, and vaginal urine and rectal stool are not easy to enter the recto-vaginal fistula, so that the patient's recto-vaginal fistula can be quickly healed and repaired.

The drainage device comprises a mushroom head, a drainage tube, a first water bag and a second water bag, the mushroom head is arranged at the end of the drainage tube, a plurality of drainage holes communicated with an inner cavity of the drainage tube are distributed in the surface of the mushroom head, and the drainage tube is fixedly sleeved with the first water bag and the second water bag on one side of the mushroom head. The first water bag is communicated with the first water injection port, the second water bag is communicated with the second water injection port, the first water injection port and the second water injection port are fixedly arranged on the drainage tube, and the first water injection port and the second water injection port are both provided with switch valves which can be connected with a water injection device to alternately inject water into the first water bag and the second water bag. The first water bag and the second water bag are used for fixing the device in the intestinal tract, the water bags are large in self weight and can be better tightly attached to the intestinal wall, intestinal juice and other contents are prevented from seeping through the water bags to pollute an operation wound, and the first water bag and the second water bag are alternately used so that the burden of the intestinal wall can be relieved; intestinal injury caused by intestinal wall ischemia due to long-time compression of a single part of the intestinal wall is avoided.

This utility model relates to the field of minimally invasive postoperative wound dressing technology, specifically a minimally invasive postoperative wound dressing with wound closure function. It includes an adhesive layer, release paper installed on both sides of the bottom of the adhesive layer, low-sensitivity adhesive tape evenly installed on both sides of the top of the adhesive layer, and a sterilization layer embedded in the middle of the adhesive layer. The improved minimally invasive postoperative wound dressing adds a first elastic band and a second elastic band. When the wound dressing is applied to the wound surface, the first and second elastic bands can be pulled to traction the sides of the adhesive layer, thereby effectively closing the wound, reducing the risk of wound dehiscence, and promoting rapid wound healing. An absorbent layer made of highly absorbent resin is also added, allowing the absorbent layer to quickly absorb tissue fluid exudated from the wound during the healing process, helping to reduce the risk of wound infection and thus promoting wound healing.

A peripheral nerve stimulation system, comprising an percutaneous implanted lead (10), an adapter (20), a first cable (30), a stimulator (50) and a surface electrode, wherein the percutaneous implanted lead (10) can be inserted into the body of a patient through skin, and the percutaneous implanted lead (10) comprises a distal lead head (11) and a lead body (12) from a distal end to a proximal end, the distal lead head (11) comprising at least one electrode, the lead body (12) being formed by spirally winding at least one conductor wire (121), and the conductor wire (121) comprising a metal wire (122) and an insulating layer (123), which is arranged outside the metal wire (122) in a wrapping manner, such that the lead body (12) is of an open insulating spiral structure; the adapter (20) is electrically connected to the proximal end of the percutaneous implanted lead (10), the adapter (20) is electrically connected to the stimulator (50) by means of the first cable (30), and the stimulator (50) is used for sending an electrical stimulation pulse; and the surface electrode can be directly connected to the stimulator (50) or connected to the stimulator (50) by means of a second cable (72), and forms a stimulation loop together with the percutaneous implanted lead (10). By means of the peripheral nerve stimulation system, pain can be effectively suppressed, thereby improving the clinical treatment effect.

The utility model discloses a novel circumcision anastomat which comprises an inner ring and an outer ring, the inner ring is used for supporting the inner side of a prepuce, the outer ring is composed of a pair of outer ring lock catches which can be mutually locked, a dull knife is arranged on the inner side of each outer ring lock catch, a drainage assembly is arranged on each dull knife, and the outer ring lock catches are buckled on the outer side of the inner ring. The blunt knife extrudes the foreskin tissue on the outer side of the inner ring, the to-be-cut tissue and the reserved tissue are isolated through the arranged inner ring and the locking mechanism, so that the to-be-cut tissue necroses and falls off, then cutting is completed, in addition, tissue fluid is guided out to be away from the isolation belt through the drainage assembly, and it is guaranteed that the position nearby the tissue fluid is kept dry; lymph accumulation and flowing around are avoided, and cross infection is reduced, so that edema is relieved, and healing is faster.

The invention relates to the technical field of carya illinoensis, and particularly discloses a method for controlling vigorous growth of carya illinoensis by inversely cutting the peel of carya illinoensis. The invention relates to a carya illinoensis' inverted bark cutting 'vigorous growth control method, which comprises the following steps: S1, girdling: girdling a vigorous tree trunk or branch of a carya illinoensis tree by using a girdling cutter, cutting off bark and phloem, forming a strip-shaped annular groove in the tree trunk or branch, and retaining the cut annular bark; s2, inversely cutting the barks: taking the cut annular barks, inverting the annular barks, enabling the A ends of the annular barks to face the ground, enabling the B ends of the annular barks to face the crown, and embedding the barks ends of the inverted annular barks into the strip-shaped annular grooves to complete embedding of the inversely cut barks; and S3, post-processing. The method has the advantages of being easy to operate and excellent in vigorous growth control effect.

The invention provides a wet patch special for radiodermatitis and a preparation method thereof. The wet application special for radiodermatitis comprises a wet application cloth piece, wherein the wet application cloth piece is composed of a wet application cloth piece body, a transparent bag and liquid medicine; the liquid medicine is prepared from the following components: rhizoma atractylodis, cortex phellodendri, alum, cortex dictamni, cortex meliae powder, radix sophorae flavescentis tablets, lysimachia christinae hance, humulus japonicus and borneol. According to the wet application special for radiodermatitis and the preparation method thereof, the preparation process is simple, permeability is high, medicine components can rapidly penetrate through scurf on the skin surface of a patient to enter the inner layer of the skin, the purposes of rapidly inhibiting bacteria and diminishing inflammation are achieved, and the effect of promoting rapid healing of the affected part of the patient is achieved; and the medicine is particularly suitable for patients who cannot be treated by oral medicines.

The invention discloses mussel-imitating bacteria responsive injectable hydrogel as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The hydrogel is formed by compounding a mussel-imitating viscous hydrogel bracket and a bacterial response agent, the viscous hydrogel scaffold is QCS-EC (Quaternized Chitosan) and is formed by non-covalent binding of QCS (Quaternized Chitosan) and EGCG (Epigallocatechin Gallate); the bacterial response agent is a supramolecular nano cross-linked compound TEBox-B12, and is formed by self-assembly of box-shaped quaternized pyridine heterocyclic organic salt molecules TEBox and salt containing suprachaotropic liquid anions B12H12-through hydrogen bonds and electrostatic interaction. The hydrogel disclosed by the invention has NIR-II photo-thermal and photodynamic antibacterial treatment functions, and can be used for efficiently killing bacteria in deep tissues; the hydrogel also has high adhesion, good biocompatibility and injectability, is strong in convenience and applicability, can provide a good healing environment for wounds, promotes fibroblast proliferation and migration, accelerates wound tissue regeneration and healing processes, and reduces scar formation.

The traditional Chinese medicine compound preparation is prepared from the following raw materials: 120 to 180 parts of fructus crataegi, 120 to 180 parts of fructus hordei germinatus, 120 to 180 parts of medicated leaven, 180 to 220 parts of pericarpium citri reticulatae, 120 to 150 parts of fructus trichosanthis, 120 to 150 parts of semen raphani, 80 to 120 parts of fructus citri, 80 to 120 parts of semen arecae, 100 to 140 parts of folium perillae, 50 to 80 parts of radix platycodonis, 40 to 60 parts of radix ophiopogonis, 60 to 80 parts of rhizoma atractylodis, 20 to 40 parts of radix astragali seu hedysari and 0.5 to 1.5 parts of peppermint oil. According to the traditional Chinese medicine compound preparation disclosed by the invention, the platycodon grandiflorum, the radix ophiopogonis, the rhizoma atractylodis and the astragalus mongholicus are added on the basis of food digestion, and the platycodon grandiflorum has the effects of diffusing the lung, relieving sore throat, eliminating phlegm and expelling pus; the radix ophiopogonis has the effects of nourishing yin, promoting salivation, clearing away lung-heat, diminishing inflammation and resisting bacteria; rhizoma atractylodis is used for drying dampness and tonifying spleen; the astragalus membranaceus is used for tonifying qi and raising yang; by adjusting the ratio of the raw materials, the prepared traditional Chinese medicine compound preparation has excellent treatment effects on the symptoms such as food retention, abdominal fullness and distention, putrid belching and poor appetite, phlegm-dampness accumulation, excessive phlegm and the like, and the purpose of quickly curing food impairment caused by external infection is achieved.

The present invention discloses an intelligent device for integrated physical and chemical multimodal diagnosis and treatment of chronic wounds, which relates to the technical field of flexible intelligent bandage devices, including an intelligent detection system, a treatment system, a flexible spinning substrate and a flexible circuit board. The intelligent detection system and the treatment system are integrated on the flexible spinning substrate. The present invention takes multiple angles related to chronic wounds, including physical and chemical signals, and integrates impedance sensing, temperature sensing, pH sensing, uric acid sensing, glucose sensing and other detection means to obtain chronic wound healing information, comprehensively judge the inflammation of the wound, and adopt an electrical stimulation treatment method. Extremely low voltage and current can eliminate harm to the human body, and cell proliferation, migration and differentiation can be promoted by regulating the endogenous electric field to achieve rapid healing. This method based on the mechanism of human wound healing avoids drug resistance and other toxicity problems and is relatively safer.

The invention relates to the technical field of garden pruning equipment, in particular to garden pruning equipment which comprises a connecting rod assembly, a control mechanism is fixedly mounted at the tail end of the connecting rod assembly, and a cutting mechanism is fixedly mounted at the front end of the connecting rod assembly; the cutting mechanism comprises a U-shaped frame, a driving assembly is installed between the two sides of the U-shaped frame, a cutter assembly is installed on the driving assembly in a transmission mode, a cutter holder assembly is fixedly installed at one end of the U-shaped frame, and a grinding assembly is arranged in the cutter holder assembly; the cutter assembly comprises a mounting batten; a cavity is formed in the mounting batten, spray holes are formed in the bottom surface of the mounting batten, a pipe joint is mounted on one side of the mounting batten, and a liquid supply assembly is fixedly connected to the end, away from the mounting batten, of the pipe joint; through the arrangement of the liquid supply assembly and the mounting batten, synchronous medicine feeding operation can be carried out in the branch cutting-off process; and through the arrangement of the grinding assembly, the cutter can be automatically ground in each cutting operation process.

The invention relates to the technical field of medical instruments, in particular to a war wound rapid hemostasis and wound treatment integrated device which comprises a connecting shell and a binding structure connected to the connecting shell, the binding structure comprises an extrusion plate and a protective film distributed above the extrusion plate, and the two ends of the extrusion plate are fixedly connected with the protective film through connecting plates; one end of the top surface of the extrusion plate is fixedly connected with a second telescopic film, the upper end of the first telescopic film and the upper end of the second telescopic film are fixedly connected with the protective film, the water absorption cotton balls are distributed between the protective film and the extrusion plate, and the bottoms of the water absorption cotton balls are fixedly connected with connecting cotton strips in a matrix shape. The device is simple in structure and convenient to use, can store fester and blood at the wound part of an injured person, can prevent the fester and blood at the wound part of the injured person from being concentrated on the surface of skin, can prevent the wound part of the injured person from pruritus, and can realize rapid healing of the wound of the injured person.

The invention discloses a method and a device for creating heat-resistant potato germplasm through interspecific grafting. The method comprises the following steps: (1) cultivating potato seedlings and tomato seedlings; (2) mutual stock-scion grafting; 3, grafted plant treatment, wherein after grafting is conducted for three weeks, grafting openings are pulled to the positions 15 cm below plate holes, and variable temperature treatment is conducted; (4) potato seed management: cutting off all the grown stolons before temperature-changing treatment, leaving the potatoes after temperature-changing treatment, and harvesting the potatoes at proper time; and (5) heat-resistant domestication: after 5-6 compound leaves grow on the seed potato potted plant in the step (4), performing high-temperature domestication at 38 DEG C in the daytime and 30 DEG C at night in an illumination incubator for 9 days, transferring the heat-resistant plant to outdoor culture, and harvesting tubers. And (6) heat-resistant germplasm screening: repeating the step (5) for two generations, and harvesting tubers. According to the method, the potato germplasm with high heat resistance and genetic stability is obtained, the variety breeding process is shortened, and the problems that a heat-resistant potato germplasm creation technology and heat-resistant varieties are lacked, and potato production is affected by high temperature are solved.

This invention relates to a mildly photothermal-releasing, injectable, self-healing hydrogel dressing for wound healing after oral cancer surgery. The hydrogel dressing is prepared by loading NO donor-loaded nanoparticles into a thermosensitive ABA triblock copolymer. This hydrogel dressing possesses thermosensitivity, injectability, self-healing properties, mild photothermal antibacterial activity, controlled NO release, blood compatibility, and biocompatibility. It can promote tissue regeneration, angiogenesis, and cell migration in postoperative wounds after oral cancer surgery, making it an ideal material for postoperative wound management in oral cancer patients.

The present invention proposes a fat stem cell composition for wound repair and a preparation method and application thereof, which belongs to the field of stem cell technology. Fetal bovine serum, dexamethasone, penicillin, streptomycin, collagen, magnetic particles, and substance P are added to DMEM culture medium to prepare a culture medium for low-frequency magnetic field culture of fat mesenchymal stem cells, separation, obtaining a stem cell solution, embedding to obtain stem cell microspheres, freeze-drying the supernatant to obtain paracrine culture material, and mixing with stem cell microspheres, hydroxypropyl methylcellulose, carboxymethyl chitosan, hyaluronic acid, glycerol, and stem cell microspheres to obtain a fat stem cell composition for wound repair, which has good effects of implanting damaged tissues, releasing nutrients, promoting new blood vessel formation, regulating oxidative stress and inducing anti-inflammatory reactions, and is helpful for wound repair. It can be converted into a gel phase at a skin epidermal temperature between 35-37°C, stabilizes components, and releases in a controlled manner.

The utility model discloses a protection pad which comprises a main body, two sides of the main body are connected with connecting edges, the center of the upper surface of the main body is connected with an absorption pad, the absorption pad is high in the middle and low in two sides so that the protection pad can be conveniently attached to the buttock cleft, and meanwhile absorption cotton is filled in the absorption pad. The absorption cotton facilitates absorption of blood or seepage, the main body comprises a leakage-proof pad and a breathable layer, the main body is made of non-woven fabric, breathability of the main body can be guaranteed under the leakage-proof condition, wound suppuration or infection caused by the fact that the protection pad is airtight is avoided, the two connecting edges are each provided with a colloid, the colloids are made of skin-friendly materials, and the two connecting edges are made of non-woven fabric. After the absorption pad is inserted into the gluteal sulcus of the buttocks, the connecting edge is attached to the buttocks of a patient to complete fixation, and certainly, the medicine layer is laid on the outer surface of the absorption pad, so that the wound of the patient can be quickly healed.

The utility model relates to the technical field of wound application, and discloses a heating device for wound application, which comprises an operating table, the top of the operating table is rotatably connected with an adjusting support, the front end of the adjusting support is slidably connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a heater, the bottom of the heater is fixedly connected with a shell, and the shell is fixedly connected with a heating device. The output ends of the heaters penetrate through the top of the shell and are fixedly connected with a plurality of heating pipes, the bottom ends of the heating pipes are fixedly connected with heated plates, the bottoms of the heated plates are fixedly connected with protective strips, and a heat dissipation mechanism is arranged in the operation table and comprises internal elements. According to the utility model, an injured position can be heated through the heating pipe and the heated plate, so that a wound of the injured position can be healed more quickly, and heat absorption and heat dissipation are carried out on internal elements through the copper pipe, so that the service life of the internal elements is prolonged.

This invention belongs to the field of coating technology and provides a wear-resistant coating for drone shells and its preparation method. The raw materials of the coating include: hydrogenated bisphenol A epoxy resin, vinyl-terminated fluorinated polybutadiene resin, core-shell powder, aluminum borate nanofibers, polyetherimide micro powder, wear-resistant additives, silane coupling agent KH-792, light stabilizer, leveling agent and environmentally friendly solvent. The preparation method includes: (1) mixing hydrogenated bisphenol A epoxy resin and vinyl-terminated fluorinated polybutadiene resin to form a resin matrix; (2) first adding core-shell powder and aluminum borate nanofibers to the resin matrix for dispersion; after cooling to 25-30℃, adding other raw materials, stirring and defoaming to obtain the finished product. This coating has high wear resistance, wind and sand erosion resistance, low temperature crack resistance, microcrack self-repair, strong UV aging resistance and high adhesion, which can significantly improve the long-term service stability and service life of drone shells in complex and harsh environments such as high altitude, wind and sand, high and low temperature alternation, and strong ultraviolet radiation.

The invention provides zinc oxide nanoparticles, a preparation method thereof and an acne removal, anti-inflammatory and oil control application thereof. The zinc oxide nanoparticles are modified by hyaluronic acid and are prepared by ultrasonically or stirring water-soluble zinc salt and hyaluronic acid in an aqueous solution. The zinc oxide nanoparticles modified by hyaluronic acid not only have better acid stability and lower cytotoxicity, but also can specifically kill acne pathogenic bacteria, and the gel prepared from the zinc oxide nanoparticles has good acne-removing, anti-inflammatory and oil-controlling effects when applied to skin.

The invention relates to the technical field of carya illinoensis, and particularly discloses a bridging method for remedying damaged branches of carya illinoensis. A bridging method for remedying bad branches of carya illinoensis comprises the following steps: S1, cutting: cutting a main stem above a damaged part, and forming a bridging groove in the main stem; s2, branches are selected, wherein branches regenerated at the roots of the damaged plant rhizomes are cut to serve as grafting branches; s3, bridging: inserting the cut end of the grafted branch into the bridging groove, and wrapping with a film to complete bridging. The remediation method has the advantages of being easy to operate, capable of saving cost, obvious in remediation effect and the like.

The utility model discloses a jujube tree girdling wound auxiliary healing paste, and belongs to the technical field of tree pastes. The auxiliary healing patch for the jujube tree girdling wound comprises a base band, and a plant protection agent layer, a viscous material layer and a medicine attaching material layer are sequentially arranged on the upper surface of the base band from bottom to top. The plant protection agent layer is arranged to be of a sawtooth-shaped structure. By adopting the auxiliary healing paste for the jujube tree girdling wound, the jujube tree girdling wound can be healed more quickly, the healing effect is better, and the recovery of the tree after girdling is accelerated, so that the influence of girdling on the tree vigor is weakened.

The present application relates to the technical field of forest cultivation, and provides a large-diameter-grade knot-free fine timber cultivation method for pine-broadleaf mixed forest, which comprises the following steps: selecting a forestation site and then carrying out site preparation, planting pine seedlings and broadleaf tree species, pruning according to a pine branch stake embedding area formula, applying an external growth agent to the pruning mouth, thinning and adjusting the pine forest density, and harvesting the pine when it is matured. The pine and broadleaf tree species are planted and mixed at the same time, which can promote the growth of the pine, improve the soil environment, enhance the resistance to the outside world, and significantly improve the comprehensive benefits per unit area. In addition, after pruning and applying the external growth agent, the cultivation period of the knot-free pine fine timber is shorter.

The anorectal nursing cushion comprises a cushion body, a rubber supporting cushion is fixedly connected to the surface of the bottom of the cushion body, a supporting air bag is installed in an inner cavity of the cushion body, a battery bin is installed on the side wall of the cushion body, a double-control switch is arranged on one side of the battery bin, an air pump is arranged on one side of the double-control switch, and a pressure sensor is arranged on the other side of the double-control switch. The battery bin, the double-control switch and the air pump are electrically connected, and a penetrating groove is formed in the middle of the upper surface of the cushion body in a penetrating mode. The seat cushion has the advantages that the hip is better supported, the anus is located in the through groove and can not make contact with the surface of a seat, the use comfort is improved, the air inlet grooves are formed in the surface of the rubber supporting cushion at equal intervals, the exhaust fan is matched with the air inlet grooves, external air can be sucked into the through groove, and the air inlet grooves are communicated with the through groove. The ventilation effect of the buttocks can be improved, and rapid healing of anus wounds is facilitated.

The utility model relates to the field of wound suture, in particular to an interval type barb suture line and an interval type barb suture assembly. The interval type barb suture line comprises a plurality of barb sections and a plurality of smooth sections which are arranged at intervals in the extending direction. Wherein the lengths of the barb section and the smooth section are configured as follows: at least the middle part of the barb section is buried under the skin after the wound is sutured, and at least the middle part of the smooth section is exposed outside the skin. According to the utility model, at least most of the part of the barb suture line exposed outside the skin is smooth, so that the damage to the skin at the sutured part is weakened.

The present invention discloses an anus storage structure for protecting perineal wounds, which belongs to the field of medical devices and comprises safety pants. An adjustable wearing mechanism is arranged at the upper end of the safety pants, and the wearing mechanism comprises a front sponge and a rear sponge. A wound observation and replacement mechanism for convenient observation and dressing change of the perineal wound is arranged on the front sponge, and a sewage collection mechanism for collecting human excrement is arranged in the rear sponge. The sewage collection mechanism comprises a sewage frame, and a sewage bag is arranged inside the sewage frame. A replacement and packaging mechanism for replacing the sewage bag and packaging the collected sewage bag is arranged at the lower end of the sewage frame. Urine and feces are discharged into the sewage bag, so as to avoid filth sticking to the patient's wound when the patient discharges sewage, causing wound infection, and better protecting the patient's wound. After the sewage discharge is completed, the sewage bag containing the excrement and the new sewage bag are torn apart neatly after packaging, so as to make the packaging and replacement of the sewage bag more convenient.

The invention relates to the technical field of forest tree genetic breeding and propagation, and particularly discloses a seedling raising method for improving the grafting survival rate of phoebe bournei. Comprising the following steps: S1, cultivating phoebe bournei cutting seedlings as rootstocks, and keeping the rootstocks in a robust state for later use; s2, semi-lignified branches growing in the current season are collected from the excellent phoebe bournei stock plants to serve as scions; s3, performing disinfection and pretreatment on the scions to prepare scion sections with wedge-shaped notches; s4, cutting off and cutting the stock, and combining the scions treated in the step S3 with the stock to enable cambiums to be aligned; s5, sealing and fixing the grafting joint part by using a binding belt material; s6, performing stage moisturizing and light and temperature regulation and control on the grafted plants. The seedling raising method can be applied to the fields of efficient germplasm resource utilization, artificial forest and landscape forest construction and the like, and has the advantages that the grafting survival rate is high and stable, the interface healing speed is high, the quality is good, and nursery stocks grow robustly and neatly.

The present invention provides a composition, a composite cytokine hydrogel, and a preparation method and application thereof, and belongs to the field of biomedical technology. The present invention adds insulin-like growth factor-1, epidermal growth factor, basic fibroblast growth factor-2, human platelet-derived growth factor, vascular endothelial cell growth factor C, and transforming growth factor-β2 in a specific ratio, which can promote fibroblast proliferation, be beneficial to the appearance and function recovery of new skin, and make wounds heal quickly. The composite cytokine hydrogel of the present invention has a strong repair effect and good tissue compatibility, and can form a solid gel after being placed at 37°C for 16 to 17 seconds. The preparation method of the composite cytokine hydrogel of the present invention is simple and can be widely used clinically.