52results about How to "No risk of infection" patented technology

A blood vessel occlusion system and method includes a handheld probe including a power source, the probe being adapted to transmit energy from the power source through a body surface and into a target blood vessel, for example a varicose vein. Further included is a manual or automatic switch mechanism adapted to enable and disable the power source in response to a predetermined level of compression applied, by means of the probe against the target blood vessel. When the blood vessel is compressed sufficiently to collapse and substantially slow or substantially prevent a flow of blood therethrough, the power source is activated and the vessel is cauterized, leaving the blood vessel in a condition that is resistant to recanalization.

The present invention provides a medical composition which, in autotransplantation which is the only method that can induce the epithelialization even in a widespread full-thickness skin defect, enables the fixation of an autotransplantation skin graft in a simple manner and can increase the efficiency of epithelialization to promote the regeneration of the skin. A medical composition comprises a photocrosslinkable chitosan derivative and an amino acid and / or a saccharide. The amino acid is preferably an essential amino acid, and the saccharide is preferably a neutral saccharide selected from glucose, galactose, mannose and fucose.

The invention discloses a pressure steam sterilization chemical indicator and a preparation method thereof, belonging to the field of moist heat sterilization indication. The chemical indicator mainly includes two parts: chemical indicator ink and substrate. The weight composition of the active ingredients of the pressure steam sterilization chemical indicator is: 1-10 parts of tetrazolium salt, 5-20 parts of system stabilizer, 50-70 parts of solvent, 10-20 parts of binder, and 5 parts of alkaline auxiliary. ‑20 servings, and 1‑10 servings of antioxidants. The above active ingredients are mixed and stirred to obtain a uniform and viscous composition, which is then sent to a grinder for grinding to form a uniformly dispersed indicator ink. The indicator ink is printed on the substrate by flexographic printing, and after drying, the chemical indicator is obtained by pressure steam sterilization. The pressure steam sterilization chemical indicator provided by the present invention is exposed to the saturated pressure steam conditions of 121 ° C, 132 ° C and 134 ° C, and the color of the indicating ink changes from colorless to dark, which can be determined by the color depth of color development. Determine whether the sterilization is qualified.

The invention discloses a multifunctional absorbable artificial lamina comprising a lamina body. The lamina body is composed of a base body, an outer fixing piece and an inner fixing piece. The base body is of an arched structure, and the outer fixing piece and the inner fixing piece are arranged on two sides of the base body respectively. Autogenous bone fragments can be implanted above the base body. An upper margin and a lower margin are arranged at two ends of the base body respectively and are arc-shaped protrusions respectively. A first arc-shaped groove and a second arc-shaped groove are formed in the lower surface of the upper margin and the upper surface of the lower margin respectively. The second arc-shaped groove of the upper surface of the lower margin of a previous lamina body can be in seamless joint with the first arc-shaped groove of the lower surface of the upper margin of a next lamina body. A plurality of suture holes used for suturing are symmetrically formed in one sides, close to the base body, of the outer fixing piece and the inner fixing piece respectively. The multifunctional absorbable artificial lamina is proper in physical performance and mechanical strength, and can be widely applied to injury repairing of various structures such as rear sides, rear lateral sides and outer lateral sides of cervical vertebras, thoracic vertebras, lumbar vertebras and caudal vertebras.

The invention relates to a needle (10) having a distal end (11), a proximal end (12) and a stem (13) extending between them, and a tip (14) at its distal end (11). The needle (10) is provided with a safety device (20) arranged to be able to move between a first position in the proximal region of the stem (13) and a second position at the distal end (11) of the stem slide on the trunk (13). The safety device also includes a housing (21, 22) having a proximal opening (23) and a distal opening (24) for passage of the stem of a needle, the tip of the needle when the safety device is in the second position (14) is inside the housing. The device comprises closure means (30) which close the distal opening (24) of the housing when the tip of the needle is located within the housing.

The invention discloses a medical cotton swab box. The medical cotton swab box comprises a box cover and a box body, wherein clamping bodies are arranged at the bottom end of the outer part of the box body; clamping grooves are formed in the bottom end of the inner part of the box cover; the clamping bodies and the clamping grooves are matched with each other so as to lock the box cover and the box body sleeved together; protruding hollow cylinder bodies are arranged on the upper cover surface of the outer part of the box cover; liquid medicine can be accommodated in the hollow cylinder bodies; the hollow cylinder bodies accommodated with the liquid medicine are sealed through aluminum foils; hollow cotton swab placing holes are formed in the inner part of the box body; cotton swabs are arranged in the hollow cotton swab placing holes reversely; handles are arranged on the side surface of the box cover. The invention has the benefits that medical cotton swab box is simple and convenient to use, contagion-risk-free for patients, can be recycled, is easy to recycle, and can lower the medical economic cost.

The invention discloses a blood treatment filter. A cylindrical electronic pressurizer is arranged in a bacteria-free room, a blood filtering device which is stretchable and rotatable and can be matched with the pressurizer is disposed on the left side of the cylindrical electronic pressurizer, a rotatable blood storing device which can be matched with the blood filtering device is disposed on the right side of the cylindrical electronic pressurizer, and an automatic sealing machine is disposed at the upper end of the blood storing device; a constant temperature room is disposed on the right side of the bacteria-free room, and the constant temperature room is connected with the bacteria-free room through an elastic door; an automatic conveying belt is disposed below the blood storing device; a sterilization room which is connected with the bacteria-free room through an inclined channel is disposed at the bottom of the bacteria-free room; a numerical control system which can automatically control all parts and are electrically connected with all the parts through numerical programs is disposed on the outer side of the bacteria-free room. By means of the blood treatment filter, blood treatment and filtering can be performed in bacteria-free and full-automatic environments, the working efficiency can be greatly increased, and working strength of doctors can be reduced.