17results about How to "Rapid hemostasis" patented technology

The application provides a first-aid hemostasis robot and a control method thereof. The first-aid hemostasis robot comprises a robot main body capable of walking on the ground, a mechanical arm with multiple degrees of freedom arranged on the robot main body, a pressing head and a blocking piece arranged on the mechanical arm, the pressing head is used for pressing and hemostasis of a blood vessel of a bleeding port, the blocking piece is carried by a flexible continuum robot, a front end of the continuum robot is provided with a camera used for collecting information of a bleeding site, the blocking piece can be inserted into the inside of the bleeding port through the continuum robot and expanded after blocking the bleeding port to seal a large blood vessel of the bleeding port. The mechanical arm carries the pressing head and the blocking piece to perform hemostasis on different conditions of large bleeding respectively, if the bleeding is of a split type, the pressing head is used for pressing and hemostasis at a proximal end of an artery bleeding or a distal end of a vein bleeding, if the bleeding is of a broken type, the blocking piece is inserted into a wound through the continuum robot to seal a large blood vessel of the bleeding.

The present application belongs to the technical field of medical hemostatic dressings and bandages, and particularly relates to a Duyuwei emergency hemostatic bandage, which comprises a bandage main body, the bandage main body is composed of a tight band and a dressing pad, the dressing pad is fixed to the front end of the tight band, the dressing pad is composed of an absorption area, a tablet area and a pad base layer, the absorption area and the tablet area are fixed on the pad base layer by traditional Chinese medicine glue, the absorption area is composed of Duyuwei gelatin sponge, the tablet area is composed of Duyuwei external-use tablets, and the pad base layer is composed of a medical degreasing cotton pad. A preparation method of the Duyuwei emergency hemostatic bandage comprises the following steps: Duyuwei medicinal material decoction piece component extraction, Duyuwei external-use tablet preparation, traditional Chinese medicine glue preparation, Duyuwei gelatin sponge preparation and Duyuwei hemostatic bandage preparation. The present application has the advantages of rapid hemostasis and remarkable efficacy: the Duyuwei extract, the gelatin sponge and the traditional Chinese medicine glue synergistically act to significantly shorten the hemostasis time. Animal experiments show that the average hemostasis time is short.

The application provides an emergency department wound hemostasis device, and relates to the technical field of wound hemostasis. The emergency department wound hemostasis device comprises an inflation hemostasis air bag, and the lower surface of the inflation hemostasis air bag is fixedly connected with a constant-temperature film bag. When working, the second liquid pump is started, the second liquid pump extracts water in the constant-temperature water storage tank through the second liquid pipeline, the water enters the inside of the constant-temperature film bag through the fourth liquid pipeline, the temperature of the wound is ensured, meanwhile, the first liquid pump is started, the first water valve on the first liquid pipeline is opened, the water in the constant-temperature film bag is extracted through the first liquid pipeline, and finally the water enters the inside of the constant-temperature water storage tank, so that the water in the constant-temperature film bag is always in a constant-temperature state, the temperature is close to the optimum point of the thrombin reaction, the platelet aggregation and fibrin formation can be accelerated, the method is safe and efficient, the tissue damage can be minimized, and the hemostasis speed is accelerated.

This utility model discloses a portable hemostat for vascular access bleeding, comprising: a pressure-applying component and a fixing strap; the two ends of the fixing strap are respectively installed on the two ends of the pressure-applying component; the surface of the pressure-applying component facing the fixing strap is provided with a positive compression part and two lateral compression parts, and the two lateral compression parts are symmetrically arranged along the positive compression part; a sterile adhesive layer is provided on the positive compression part and the two lateral compression parts. Through the application of this utility model, a portable hemostat for vascular access bleeding is provided. This device has the advantages of simple structure and convenient use. Through the cooperation of the positive compression part and the lateral compression parts, rapid hemostasis is achieved at the fistula rupture point or puncture needle point, and the tension of the fixing strap can be reduced, thereby improving the patient's wearing comfort.

The present application relates to a bacillus subtilis TN, a live bacterial preparation and a preparation method and application thereof, and belongs to the technical field of microorganisms. The bacillus subtilis TN was preserved in the Guangdong Provincial Microbial Culture Collection Center on March 8, 2023, and the strain preservation number is GDMCC No: 63246, and the preservation address is No. 100, Martyr Road, Guangzhou City, Guangdong Province. The bacillus subtilis TN and the live bacterial preparation provided in the present application can effectively avoid the problem of secondary infection of a burn wound caused by an unsuitable bandaging therapy, or the problem of dysbacteriosis and drug resistance caused by the abuse of biological preparations such as antibiotics when the bacillus subtilis TN and the live bacterial preparation are applied to treat a burn wound, and have the effects of anti-inflammation, antioxidant, inhibition of melanin production and moisturizing, are beneficial to promoting wound recovery and preventing scarring, and through compounding with a nutrient solution, the problems of difficulty in survival of the bacillus subtilis when applied to a wound and poor film-forming hemostatic effect are effectively solved.

The invention relates to a pulmonary artery balloon blocking hemostasis device for lung cancer surgery. The pulmonary artery balloon blocking hemostasis device comprises a puncture assembly and a balloon catheter assembly. The puncture assembly comprises a puncture needle core and a puncture sheath tube; a limiter is sleeved on the puncture sheath tube, sheath tube scales are arranged on a tube body, and the depth of the puncture sheath tube inserted into a pulmonary artery blood vessel is determined by adjusting the position of the limiter on the sheath tube scales; the puncture needle core penetrates into the puncture sheath tube, and the head end extends out of the puncture sheath tube for implementing puncture operation; the balloon catheter assembly comprises a balloon catheter and a balloon connected to the outer portion of the balloon catheter in a sleeving mode. The balloon catheter can stretch into the puncture sheath tube and enables the balloon to stretch out of the puncture sheath tube. The near end of the balloon catheter is externally connected with a medical tee joint or directly externally connected with an injector; a puncturable silica gel membrane is arranged at the near end of the puncture sheath tube and used for preventing blood from flowing back when the puncture needle core and the balloon catheter retreat.

This invention relates to a two-component cross-linked oxidized nanocellulose spray hemostatic gel, its preparation method, and its application, belonging to the field of biomedical materials. Addressing the problems of weak adhesion, insufficient mechanical properties, and biocompatibility risks in existing hemostatic materials, this invention introduces aldehyde groups using sodium periodate to prepare an adhesive component (TOCN-CHO), and simultaneously modifies the carboxyl groups of TOCN with lysine to create a cross-linking component (TOCN-Lys). After the two components are sprayed and mixed, the aldehyde groups of TOCN-CHO bind to the amino groups on the tissue surface to achieve wound sealing. Simultaneously, the amino groups of TOCN-Lys form a Schiff base cross-linking network in situ with the aldehyde groups of TOCN-CHO, enhancing mechanical strength while eliminating aldehyde toxicity. The gel retains shear-thinning properties and can be sprayed. Animal experiments show that the hemostasis time is reduced to 28 seconds. It also exhibits biodegradability and renewability, effectively solving the problem of synergistic optimization of adhesion, mechanical strength, and biocompatibility, making it suitable for emergency hemostasis and surgical scenarios.

This invention discloses a pullulan polysaccharide composite hemostatic sponge based on heat-assisted citric acid crosslinking and its preparation method, belonging to the field of biomedical materials technology. This invention uses pullulan polysaccharide as the base material, citric acid as the biocompatible crosslinking agent, and tilapia skin collagen as the functional enhancing component. A sponge precursor is prepared by collagen solution preparation, mixing and dissolving, centrifugation to remove bubbles, and gradient freeze-drying. This precursor is then subjected to solvent-free heat-assisted esterification crosslinking at 130℃ and water washing purification to obtain a pullulan polysaccharide-collagen composite sponge matrix. Finally, the target composite hemostatic sponge is obtained by co-incubating with tissue factor (TF)-liposomes. The preparation process of this invention is mild and simple, leaves no toxic residues, and is easy to scale up for production. The prepared composite sponge has a porosity ≥80%, a water absorption rate of 13.5-28.7 times, a blood absorption rate of 17.4-37.0 times, high mechanical strength and good shape recovery, a hemolysis rate <2%, cell viability ≥85%, and excellent biocompatibility. This sponge integrates the synergistic effects of pullulan, collagen, and TF-liposomes, which can quickly initiate the coagulation cascade to achieve efficient hemostasis, while promoting wound tissue repair. It is suitable for the care of various bleeding wounds such as military trauma, surgical procedures, and accidental injuries, and has good clinical application prospects.

The invention relates to the field of hemostasis headbands, and discloses an individual soldier head intelligent pressurization hemostasis headband which comprises a hemostasis headgear, multiple sets of pressing air bags are evenly distributed in the hemostasis headgear, a tightening hook-and-loop fastener is arranged on the lower side of the hemostasis headgear, and three sets of fixing hook-and-loop fasteners are arranged on the upper side of the hemostasis headgear. The left side and the right side of the hemostasis head sleeve are each provided with an installation base, the sides, away from each other, of the two installation bases are provided with a remote control air pump through an installation assembly, and the outer side of the hemostasis head sleeve is provided with a remote control device. The head band further comprises a control module, an air supply module, a man-machine interaction module, a pressure sensing module, a partition closed-loop control module, a wireless communication module and an emergency manual mode module. By means of partitioned closed-loop control of the multiple sets of pressing air bags, accurate adjustment and maintenance of pressure of all areas of the head are achieved, and a wearer can rapidly and controllably complete multi-area hemostasis under the single-soldier operation condition.

The application discloses a kind of high expansion cellulose sponge with arch layer structure and its preparation method and application.The method is: with carboxymethyl cellulose and cellulose or its micro-nano fiber as raw material, crosslinking agent is added to prepare hydrogel.Subsequently, the sponge sample is obtained by two-way freezing of hydrogel-freeze drying, the sponge sample is soaked in the solution that can be reacted with carboxyl, the solution includes at least one of calcium chloride solution, chitosan solution or the mixed solution of two, finally, the sponge is obtained by secondary freeze-drying.The sponge of the application has good biocompatibility, high liquid absorption rate, and the volume expansion ratio can reach 10-15 times;after compression, it is used for bleeding site, can swell rapidly, block wound, and quickly stop bleeding.The sponge of the application has arch layer structure between layers, can realize high compression, and can provide expansion support force for more than 4 hours.The sponge prepared by the application can be used for deep bleeding, such as deep and narrow penetrating wound bleeding, human interface bleeding, etc.

The invention relates to the technical field of daily chemicals, and aims to provide a skin care product for accelerating epidermal repair and a preparation method thereof. The skin care product disclosed by the invention is prepared from the following raw materials: dextrin / centella asiatica, ectoine, AQUAXYL, a seaweed extract, ceramide, triple helix collagen, bis-diethoxy diethylene glycol cyclohexane 1, 4-dicarboxylate, sodium hyaluronate, auxiliary components, water and the like. The skin care product for accelerating epidermal repair can effectively relieve damaged skin, adjust a skin water-oil balance system, deeply replenish water, nourish skin, effectively repair skin barrier and protect external stimulation.

This invention discloses a method for forming a tourniquet for hemostasis of fingers or toes, and the tourniquet thereof. The method includes: forming a main air bladder pre-filled with gas; forming an auxiliary air bladder located on one side of the main air bladder, pre-filled with gas that can be squeezed into the inner cavity of the main air bladder, and whose inner walls can be fixedly connected together after the gas is squeezed out; forming a fixing band on the outside of the auxiliary air bladder and the main air bladder, respectively fixedly connected to the outer surfaces of the two air bladders and respectively provided with connectors at both ends; when stopping bleeding of fingers or toes, fixing the fixing band and the two air bladders inside to the site of hemostasis of the finger or toe by a pair of connectors of the fixing band, squeezing the auxiliary air bladder to allow the pre-filled gas inside to enter the main air bladder and mix with the pre-filled gas inside the main air bladder to apply pressure to the site of hemostasis. The tourniquet of this invention has a simple structure, is easy to use, can accurately locate and stop bleeding at the site of hemostasis for patients undergoing finger or toe surgery, is not easily displaced, provides rapid and effective hemostasis, has low manufacturing cost, and is easy to promote.

The invention belongs to the technical field of self-assembled microsphere arrays, and particularly relates to a pore-adjustable and stable self-assembled microsphere array as well as a preparation method and application thereof. The microsphere array disclosed by the invention is self-assembled in a manner of combining electrostatic mediation and covalent coupling, and contact among the microspheres is guided by virtue of electrostatic interaction, so that guidance is provided for realizing controllable covalent coupling among the microspheres by virtue of Schiff base reaction. The combination of covalent coupling and electrostatic force can improve the flexibility of the microsphere array and the stability of the combination between the microspheres, so as to improve the stability of pores between the microspheres, reduce the collapse of the microsphere array, provide a good and controllable three-dimensional space for the creeping growth of cells, and facilitate the promotion of wound healing and growth. The self-assembled microsphere array is suitable for application modes such as smearing or injection, and the scene applicability is greatly improved.

The utility model relates to medical instrument technical field especially a new type hemostasis water bag, including guide pipe, inflatable air bag and hemostasis water bag, the hemostasis water bag fixed connection is in the other end of guide pipe, the middle part outside of guide pipe is equipped with blood absorption cotton pad adhesion structure, the other end of hemostasis water bag is equipped with hemostasis medicament supplement and blood discharge structure. This new type hemostasis water bag, the blood discharge pipe can be first in the communicating head end part access external hemostasis medicament, and the external liquid medicine is along the blood discharge pipe first injected into the through -hole position, and the liquid medicine sprays in the uterus inside through the through -hole can cooperate with medicament and accelerate hemostasis, and the rear side of blood discharge pipe can utilize the needle tube of connecting head connection blood drawing, and the reverse pulling needle tube can along the through -hole of opening and blood discharge pipe and remove the redundant blood discharge, utilize blood discharge pipe can first carry out the supplement of hemostasis medicine, also can control the bleeding in the uterus, effectively realize multiple functions, greatly improve the use effect of new type hemostasis water bag.

This utility model discloses an arterial hemostat, which includes a pressure plate, a fixing component, a hemostatic component, and a coagulation-promoting layer. The pressure plate and the fixing component form a receiving space. The hemostatic component is mounted on the pressure plate, and a coagulation-promoting layer is provided at one end of the hemostatic component facing the receiving space. By adjusting the hemostatic component, the coagulation-promoting layer is brought closer to the patient's puncture site to apply pressure and stop bleeding at the puncture site. This utility model solves the problem of long compression hemostasis time after arterial puncture by providing a coagulation-promoting layer at the adjustment part.

This invention discloses an anti-swelling asymmetric hemostatic dressing, comprising two layers: an upper layer of highly adhesive hydrogel and a lower layer of non-adhesive hydrogel. The anti-swelling asymmetric hemostatic dressing is prepared by first adding a non-adhesive solution A to a mold and photocuring it, then adding a highly adhesive solution B and photocuring it again. The dressing of this invention, with its highly adhesive hydrogel upper layer and non-adhesive hydrogel lower layer, possesses both adhesive and anti-adhesive properties. Furthermore, the hydrogel is anti-swelling, enabling rapid hemostasis within 10 seconds, easy peeling, and promotion of wound healing.

The application discloses a regional hemostatic patch and device, and relates to the medical field.The regional hemostatic device comprises a regional hemostatic patch and an electric heating control device.The regional hemostatic patch comprises a patch body and a heating medium embedded in the patch body, and the patch body has a patching side which is suitable for patching a wound surface.The electric heating control device comprises a thermal field analysis module, a data function processing module and an energy output module.The thermal field analysis module is used for performing thermal field analysis on the patching side of the patch body so as to obtain temperature changes of different positions of the patching side.The data function processing module is used for obtaining preset target temperature values of different positions of the patching side, and the energy output of the energy output module is controlled through a built-in control algorithm.The energy output module is used for outputting energy to the heating medium so as to heat the heating medium, thereby controlling the temperature of different positions of the patching side.In this way, a higher temperature can be output to a bleeding point to realize rapid hemostasis, and a conventional hemostasis temperature is adopted for hemostasis of the remaining part, thereby preventing local overheating and tissue carbonization.