31 results about "Adhesive tissue" patented technology

A method of tissue repair is provided using a biocompatible nonimmunogenic adhesive composition. The adhesive composition comprises collagen and a plurality of crosslinkable components having reactive functional groups thereon, with the functional groups selected so as to enable inter-reaction between the components, i.e., crosslinking. Kits for use in carrying out the method of the invention are also provided, as are pretreated surgically acceptable patches that have been coated with the aforementioned adhesive composition.

An electro-adhesive tissue manipulator capable of manipulating tissue with a single conducting element is provided. The manipulator includes a conducting element, an electrical means and a control means capable of generating a first and a second pulse on demand. The first pulse generates an adhesive state between the conducting element and the tissue layer strong enough to manipulate the tissue layer. The second pulse, which has higher pulse energy than the first pulse, generates a non-adhesive state to detach the adhered tissue layer from the conducting element. The electro-adhesive device could be combined with a medical instrument to enhance the capabilities of the medical instrument so that it can manipulate tissue. The advantage of the present invention, in contrast to mechanical tools, is that tissue can be manipulated with a single tip of a conducting element, without folding and piercing of the tissue, thus avoiding damage to the tissue.

The invention discloses a building method of a porcine trachea epithelial cell line. The method comprises the following steps of: (1) primary culture: sterilely acquiring newborn piglet tracheas, clearing adhesive tissues, performing digestion and separation by adopting a pronase perfusion cold digestion method to obtain high-purity trachea epithelial cells, suspending the separated primary trachea epithelial cells in a DF12 culture medium, and culturing the cells at the temperature of 37 DEG C under the condition of 5 percent CO2; (2) transfection and screening: extracting and purifying eukaryotic expression plasmids pCI-neo-hTERT containing hTERT genes, and guiding the eukaryotic expression plasmids pCI-neo-hTERT for coding hTERT and neo genes to the porcine trachea epithelial cell primarily cultured in the step (1) by adopting a liposome transfection method to perform transfection; and (3) screening and amplified culture. The method is easy in culture, the growth speed is high, and the operating method is simple and convenient.

A method for extracting fibres and adhesive tissue from rice or wheat straws, corn stalk, weeds, etc in order to use them to prepare ground-covering film and seedling culturing tray includes such steps as cutting, opening, digesting, dewatering and extracting by fibre opening and extracting machine.

The invention discloses a mucosal disease treatment system. The mucosal disease treatment system comprises a biological adhesive, a biological medical material, and medical instruments, wherein the biological adhesive comprises the following components: a component a, namely a functionalized star polymer or/and a functionalized comb polymer, and a component b, namely functional polysaccharide; anactive group of the component a and an active group of the component b can chemically react to form a new chemical bond; the biomedical materials, which are selected according to different mucosal diseases, are mixed in the component a of the biological adhesive, or in the component b of the biological adhesive, or partially mixed in the component a of the biological adhesive and partially mixed in the component b of the biological adhesive. When the system is in use, one of the components a and b is covered on a mucous membrane to be treated with the aid of a corresponding medical instrument,and the other component is covered on the previous component; the biological adhesive is firmly adhered to the mucous membrane and seals and repairs the mucous membrane; and the biological medical material is continuously released into adhesive tissues, thereby treating mucosal diseases.

A method and system for performing anastomosis uses an anvil to control and support a tissue site during an anastomosis procedure involving tissue bonding techniques such as tissue welding and adhesive tissue bonding. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel in a coronary artery bypass graft procedure. The anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent an exterior of the target vessel. When tissue welding is used, a graft vessel fixture is positioned over the tissue surfaces to be welded in order to clamp the graft and target vessel tissue together. The tissue contacting surfaces of the anvil and/or graft vessel fixture are provided with one or more energy applying surfaces. Energy in the form of RF power, laser energy or ultrasonic energy is then applied to the compressed graft and target vessel tissue to weld the vessels together. When adhesive bonding is used, the adhesive may be applied to mating surfaces of the graft and/or target vessels either before or after the vessels are brought into contact. After tissue bonding is complete, an incision is formed in the wall of the target vessel to allow blood flow between the target vessel and the graft vessel. The incision may be made with an electro-cautery cutting device.

The invention provides a medical adhesive, and further discloses a preparation and using method of the medical adhesive. The medical adhesive is characterized by being prepared from the following rawmaterials in parts by weight: 35-45 parts of copolymers of ethyl cyanoacrylate/S-allyl-D-cysteine/2,3,5,4-tetrahydroxy stilbene glucoside/N-acryloxysuccinimide, 30-50 parts of cyanovinyl modified quaternized chitosan, 3-6 parts of Chinese herbal medicine concentrate, 0.3-1 part of pectic acid, 20-30 parts of an organic solvent, and 1-3 parts of an initiator. The medical adhesive has excellent comprehensive performance, a good adhesive tissue effect, high adhesive strength, low biological toxicity, excellent adhesion durability and a good antibacterial effect, and can effectively inhibit formaldehyde production.

A flame retardant adhesive tissue paper for fabricating moldable structures, particularly suitable for forming laminates for the interior of automobiles is provided. The flame retardant adhesive tissue is prepared by screen printing an aqueous paste dispersion including a flame retardant and thermoplastic adhesive dispersed therein in discontinuous pattern onto one surface of the paper. After removal of water, the drying temperatures is increased to activate the thermoplastic adhesive to adhere to the surface of the tissue with the flame retardants solids dispersed within the interior of the tissue paper. The adhesive coated tissue paper has good acoustic properties and imparts flame retardancy to a laminate including it.

The invention discloses a pharmaceutical composition for treating humid heat and blood stasis type pelvic inflammation. The pharmaceutical composition is composed of the following raw materials: 25-30 parts of salvia miltiorrhiza, 12-16 parts of red paeony roots, 14-20 parts of fructus forsythia, 12-18 parts of spina gleditsiae, 28-32 parts of sargentgloryvine stems, 16-20 parts of patrinia, 10-15 parts of processed myrrh, 10-15 parts of processed frankincense, 15-20 parts of corydalis tuber processed with vinegar, 10-14 parts of dried body of ground beetle, 28-32 parts of stir-baked rhizoma dioscoreae, 28-35 parts of semen coicis, 10-14 parts of angelica sinensis, 28-33 parts of teasel roots, 25-30 parts of astragali radix and 10-15 parts of garden balsam stem. According to the pharmaceutical composition disclosed by the invention, the selected medicinal materials are appropriate in compatibility, the formula is refined, the methods for tonifying qi, warming meridians, activating yang, promoting blood circulation to remove blood stasis and dredging collaterals are used, and clysis drug delivery is adopted, so that the drug can directly reach the lesion, pelvic blood supply is improved, and absorption of inflammatory exudation and release of adhesive tissues can be promoted. Therefore, the disease is rapidly improved, and the pharmaceutical composition is worthy of clinical popularization and application.

The invention discloses a traditional Chinese medicinal composite for treating the protrusion of lumbar intervertebral disc. The traditiotnal Chinese medicinal composite comprises the following materials according to a proportion: radix angelicae pubescentis, radix saposhnikoviae, radix aconitie, radix aconiti agrestis, radix aconiti carmichaeli, herba ephedra, cassia twig, rhizoma dioscoreae nipponicaeJapanese yam, tuber fleeceflower stem, radix rehmanniae, rhizoma curcumae longae, rhizoma corydalis, radix achyranthis bidentatae, black soya bean, rhizoma atractylodis, rhizoma atractylodis macrocephalae, radix stephaniae tetrandrae, Chinese date and liquorice. The traditional Chinese medicinal composite disclosed by the invention has the main functions of tonifying the kidney qi, dredging and regulating Taiyang channel qi, enhancing blood circulation, quickly eliminating local edema, removing metabolite, relieving adhesive tissue, reducing the inflammatory reaction, further relieving the pain and finally healing the protrusion of lumbar intervertebral disc.

The invention discloses an extracting method of a bovine pituitary extract. The method comprises the following steps: obtaining a fresh bovine pituitary, removing blood stains and impurities on a tissue surface, removing external adhesive tissue and a white envelope, and exposing the whole pituitary tissue; adding a protease inhibitor into the pituitary tissue, crushing into paste, then adding a protein extracting liquid, performing stirring and centrifuging sequentially at low temperature of 0-4 DEG C, and collecting supernate; and sterilizing the supernate to obtain the bovine pituitary extract. With the adoption of the method, the bovine pituitary extract contains more than 15g/ml of protein; the bovine pituitary extract can be applied to cell culture and tissue engineering culture. The extracting method is simple, high in extracting efficiency, and suitable for mass production, thereby providing a strong foundation for mass production of the bovine pituitary extract.

The invention relates to an efficient steel belt adhesive peeling device which comprises a plane blade. An electric heating wire for heating the plane blade is arranged on the plane blade. The two sides of the plane blade are symmetrically provided with retainers. Supporting devices for compressing steel belts are arranged on the inner sides of the retainers. An output cable and an input cable of the electric heating wire are connected with a control box. The plane blade is heated, tissue of adhesive tape is broken instantly at high temperature, and the strength of the adhesive tissue is greatly lowered, so that cutting is easily achieved, the cutting efficiency is high, little force is wasted, and meanwhile cutting is stable. The efficient steel belt adhesive peeling device can adjust the cutting depth and an angle between the blade and the surface of a belt, so that steel belts of different thicknesses are machined, and the two adhesive faces of the steel belts can be machined without turning over faces.

The invention provides a nursing device for radiotherapy mucosal reaction, and belongs to the technical field of radiotherapy. The nursing device comprises an outer cylinder, a linear cutting assembly, a grabbing assembly and a liquid suction assembly, wherein the linear cutting assembly is arranged in the outer cylinder in a sliding and penetrating mode in the axial direction of the outer cylinder and is rotationally connected with the outer cylinder, the grabbing assembly is arranged in the linear cutting assembly in a sliding and penetrating mode in the axial direction of the outer cylinder, and the liquid suction assembly is arranged in the grabbing assembly in a sliding and penetrating mode in the axial direction of the outer cylinder; one end of the linear cutting assembly has a storage state in which the linear cutting assembly slides into the outer cylinder, and further has an opening state in which the linear cutting assembly extends out of the bottom end of the outer cylinderand is used for cutting purulent adhesive tissue; when the linear cutting assembly is in the storage state, the bottom end of the grabbing assembly is located in the linear cutting assembly, and thebottom end of the liquid suction assembly is located in the grabbing assembly; and when the linear cutting assembly is in the opening state, the bottom end of the grabbing assembly extends out of thebottom end of the linear cutting assembly and is used for grabbing purulent substances and erosive tissue, and the bottom end of the liquid suction assembly extends out of the bottom end of the grabbing assembly and is used for sucking purulent secretion and a blood-water mixture.

The invention discloses a carton sealing machine belt guide device capable of preventing the adhesive tape from being derailed and trailing, which comprises a machine core mounted on a packaging assembly line rack, the machine core comprises a machine core mounting frame, and a film rolling wheel for positioning the adhesive tape is arranged in the machine core. The carton sealing machine belt guide device is characterized in that a first guide roller is arranged in parallel with the film rolling wheel, and a one-way roller is arranged on the rear side of the first guide roller; a front pressing wheel is arranged below the one-way roller and behind the auxiliary guide roller and the adhesive tape seat; a rear pressing wheel matched with the front pressing wheel is arranged in the machine core installation frame through a connecting rod mechanism, and a glue breaking blade is arranged on the near point of the rear side of the front pressing wheel. Through the detailed design of the parts, the problems that the adhesive tape cannot be completely cut off, trailing is avoided after cutting off, the adhesive tape is prevented from derailing, the adhesive tape is kept on the same center line all the time, meanwhile, the phenomenon that the adhesive tape cannot completely adhere to a carton is avoided, long-term safe use of the carton sealing machine is guaranteed, and the carton sealing quality is improved.

The invention discloses a traction-expansion separator of an adhesive tissue and a traction-expansion separation method of the adhesive tissue. A first fixing rod and a second fixing rod which are tightly attached are inserted into the adhesive tissue needing to be separated, and then a track telescopic bag and a miniature air curtain are inflated and expanded to separate the adhesive tissue. Therefore, the separation means is mild, and each part of the air curtain expands uniformly, so that adhesion tissues are separated more sufficiently and thoroughly.