32results about How to "Play a role in hemostasis" patented technology

The invention discloses a preparation method of hydrogel freeze-dried powder capable of self-gelling. The aqueous solution of chitosan is directly mixed with the aqueous solution of polyvinylpyrrolidone or its copolymer, and then left to stand for 10 to 20 days, or Under vacuum condition, stand still for 3-5 days, then freeze-dry and grind to obtain freeze-dried powder. The freeze-dried powder prepared by the method of the invention has good water absorption, and after absorbing water, it swells and coagulates rapidly to form a monolithic hydrogel. The freeze-dried powder is used for wounds and can play a role in hemostasis. Since the formed hydrogel is self-adaptive, the freeze-dried powder is suitable for complex-shaped wounds and cave-type wounds. The hydrogel freeze-dried powder prepared by the method of the invention has good biocompatibility because it does not contain components such as small molecular monomers, initiators, crosslinking agents, and has greater advantages as dressing materials.

The invention discloses a novel spinning solution with a hematostatic function. The novel spinning solution comprises the following components in parts by weight: 20-25 parts of modified regenerated cellulose, 10-15 parts of carboxymethyl chitosan, 2-5 parts of liquid paraffin, 1-3 parts of span-80, 5-15 parts of bletilla striata gelatin, 10-15 parts of absolute ethyl alcohol and 40-50 parts of deionized water. The invention further discloses a preparation method of the spinning solution. The spinning solution disclosed by the invention is uniform in dispersion and good in spinnability, and has good hematostatic property and good biocompatibility; and the prepared textile is good in wet strength, simple in preparation method, low in raw material price, and low in cost.

The invention discloses an eyelid cosmetic surgery clip. The apparatus (the cosmetic surgery clip) comprises a U-shaped clamp, a clamping plate, an arc-shaped clamping strip, a fixed guide pillar, a locking switch, fixing holes, a head fixing frame, fixing bosses, an illuminating device and an image pickup device. According to the cosmetic surgery clip disclosed by the invention, ocular tissue regions can be exposed more clearly by virtue of the clamping plate and the arc-shaped clamping strip, and meanwhile, an effect of hemostasis can be achieved. The apparatus is additionally provided with the fixed guide pillar, the locking switch, the fixing holes, the head fixing frame and the fixing bosses; the fixed guide pillar is locked by virtue of the locking switch, so that force is kept unchanged in a surgical process; and the surgery clip is fixedly arranged on the bosses on the head fixing frame, so that two hands of an operator can be freed and the operator can complete a surgery conveniently and smoothly. The eyelid cosmetic surgery clip disclosed by the invention can solve the problems of an existing surgical clip and an existing surgical apparatus which are unstable to operate and are likely to cause medical accidents since the surgical clip and the surgical apparatus, which are of separated structures, cannot keep relatively fixed with respect to a patient and can complete a surgery under the assistance of an assistant.

The invention relates to a gel storehouse, its preparation method and the application of postoperative hemostatic preparations, belonging to the technical field of biomedicine. The gel storage includes 40-55 mass parts of phospholipids, 40-55 mass parts of glycerides and 5-20 mass parts of cosolvent; or the outer gel storage is wrapped outside the inner gel storage; The outer gel reservoir includes 28-38 mass parts of phospholipids, 62-70 mass parts of glycerides and 1-8 mass parts of cosolvent, and the inner gel reservoir includes 40-55 mass parts of phospholipids, 40-70 mass parts of glycerides 55 parts by mass and 5-20 parts by mass of cosolvent. Preferably, the gel depot also includes a drug. The invention uses two raw materials of phospholipid and glyceride, and through mixing, the gel precursor can be quickly gelled when it meets water, so as to quickly seal the bleeding point. The inner gel of the double-layer reservoir has the characteristics of rapid gelation and high strength, which can quickly seal the bleeding point, and the outer gel has strong adhesion, which ensures that the entire gel system is not easy to fall off.