19 results about "Hemostatic gauze" patented technology

The invention relates to a hemostasis method scheduling and priority ranking method in war wound first aid. The method comprises the following steps: acquiring key parameters of a wounded person based on multi-source data including visual images, wearable physiological monitoring and voice input, wherein the key parameters include the bleeding amount, the wound part, the bleeding speed and vital signs; constructing a hemostasis urgency degree evaluation model, and mapping each wounded person into a hemostasis urgency degree index BUI; each BUI index is used as one of input parameters for subsequent scheduling and sorting, so that the system is driven to start by injury conditions, and a basic priority sequence is established; the method comprises the following steps: carrying out classification modeling on common hemostasis methods including tourniquets, hemostatic gauze, injection type hemostatic agents and air pressure hemostasis equipment, and establishing an applicable condition matrix; constructing a scheduling rule engine, and dynamically recommending a matched hemostasis method set in combination with the BUI index of the wounded, the wound part, the means adaptability and the risk factor; and a scheduling algorithm is utilized to distribute hemostasis means combination and sequence for each wounded.

A medical hemostatic gauze piece effectively solves the problems of troublesome operation and poor air permeability, and comprises a circular ring, a gauze piece is placed in the circular ring, the gauze piece is provided with a hemostatic pad and an antibacterial pad, an annular sticker is fixed on the circumference of the circular ring, release paper covers the sticking surface of the sticker, and the release paper completely covers the lower surface of the circular ring. The outer edge face of the circular ring is in threaded connection with an end cover, and a plurality of air holes communicated with the gauze piece are evenly formed in the upper portion of the end cover.

The invention discloses a roll overturning device for hemostatic gauze production, and relates to the technical field of hemostatic gauze, the roll overturning device comprises a bottom plate, an overturning mechanism is arranged above the bottom plate, the overturning mechanism comprises two fixing frames, the inner wall of each fixing frame is fixedly connected with a first bearing, the inner rings of the two first bearings are jointly and fixedly connected with a rotating shaft, and the rotating shaft is fixedly connected with a rotating shaft. The outer surface of the rotating shaft is fixedly connected with a fixing plate, the bottom surface of the fixing plate is fixedly connected with three connecting plates, and according to the roll overturning device for hemostatic gauze production, the overturning mechanism, the lifting assembly and the conveying assembly are integrated, so that full-process automatic operation of a hemostatic gauze roll from conveying, clamping, overturning to transferring is achieved; dependence on manual overturning in traditional production is thoroughly eliminated, manual operation does not need to directly participate in overturning and carrying of the gauze rolls, the labor intensity of operators is greatly reduced, efficiency fluctuation caused by fatigue during manual operation is avoided, and the high-speed operation requirement of an automatic production line can be continuously met.

The invention provides a cervix uteri hemostasis device which comprises a device body, the device body comprises a mounting cylinder device and a push rod device, one end of the push rod device is arranged in the mounting cylinder device, a gauze placement section is arranged in the mounting cylinder device, hemostatic gauze is arranged in the gauze placement section, the push rod device comprises a push rod part and a push plate, and the push rod part is arranged on the push rod part. One end of the push rod part is in contact with the hemostatic gauze, and the other end of the push rod part is fixedly connected with the push plate; according to the cervix uteri hemostasis device, the hemostasis gauze is pushed into the vagina by pressing the push plate to achieve hemostasis, the hemostasis gauze is taken out through the traction line, a patient can take out and replace the gauze in a self-service mode through the device, the cost expenditure of the patient is reduced, and pain in the replacement process is relieved.

The utility model provides a kind of hemostatic gauze ball with hemostatic medicament, it is related to gauze technical field, including sphere and medicament ball, the sphere includes absorbent cotton and gauze mesh belt, the absorbent cotton is spherical, the gauze mesh belt is wrapped in the outside of absorbent cotton, the inside center of absorbent cotton is equipped with inner cavity, the medicament ball is equipped inside inner cavity;The side of the sphere is equipped with hole, and hole is connected to the inside of inner cavity, the inside of hole is equipped with extrusion membrane;The utility model embeds medicament ball in sphere, without extra preparation medicine, when using, only need to lay under sphere to wound, extrude extrusion membrane, press the membrane of broken medicament ball, hemostatic medicament can flow out downwards, carry out quality to wound, it is convenient and fast to operate, it is convenient to use anytime, and when laying, by liquid guide wire core increase the speed of hemostatic medicament in inner cavity flowing downwards gauze mesh belt, with quick-dissolving effect, improve the efficiency of drug action.

The invention discloses polysaccharide aggregate composite hemostatic gauze and a preparation method thereof, and relates to the field of biomedical materials.The polysaccharide aggregate composite hemostatic gauze is prepared by compounding polysaccharide aggregate on the surface of gauze, adding hydrophobic molecules and an activating agent into a water-soluble polysaccharide solution, and preparing the polysaccharide aggregate composite hemostatic gauze. The preparation method comprises the following steps: grafting a hydrophobic functional substance on a polysaccharide macromolecular main chain to prepare a polysaccharide assembly modified with hydrophobic molecules; adding adhesive molecules capable of mediating supramolecular acting force and an activating agent into the polysaccharide assembly solution, and modifying the adhesive molecules and the activating agent on the polysaccharide assembly to prepare a polysaccharide aggregate modified with hydrophobic and adhesive molecules; and finally, compounding the polysaccharide aggregate on the gauze in a dipping, spraying or spin-coating manner to obtain the polysaccharide aggregate composite hemostatic gauze. The sugar aggregate composite hemostatic gauze provided by the invention has good mechanical properties and proper blood absorption, can realize ultrafast hemostasis in a massive hemorrhage scene, and improves the survival rate of the wounded.

The invention discloses a hemostatic material, hemostatic gauze and a preparation method thereof, and belongs to the technical field of hemostasis. The hemostatic material comprises a multi-element metal organic framework material, the hemostatic gauze is gauze loaded with the hemostatic material; the hemostatic material is obtained by coordination of metal ions or metal ion clusters and ligands. The metal ions comprise aluminum ions and iron ions, and the ligands comprise multi-element ligands; through cooperation of two doped metal ions, multistage hydrophilic sites are constructed, and the hemostatic behavior of the hemostatic material is regulated and controlled; through matching of multi-element ligands, the pore structure of the hemostatic material is regulated and controlled, the water adsorption kinetics of the hemostatic material is improved, and the water adsorption capacity of the hemostatic material is improved. The hemostatic material and the hemostatic gauze have the characteristics of high hemostatic speed and good hemostatic effect. The preparation method has the characteristics of simplicity in operation and easiness in industrialization.

The hemostatic gauze for hemodialysis comprises a gauze body, and a plurality of restraint straps are arranged on the gauze body. A contact layer, a hemostasis layer, an isolation layer and a fixing layer are sequentially arranged on the gauze body from bottom to top; the contact layer is made of a hydrophilic biocompatible material; thrombin, chitosan microspheres and gelatin sponge are arranged in the hemostatic layer; the isolating layer is made of a polytetrafluoroethylene film, and the fixing layer is made of elastic medical non-woven fabric. According to the multi-layer structural design that the gauze body is sequentially provided with the contact layer, the hemostasis layer, the isolation layer and the fixing layer from bottom to top, and all the layers are clear in function and cooperate with one another; the contact layer is in direct contact with the wound and is responsible for primary blood coagulation promotion and adhesion prevention; the hemostatic layer can stop bleeding efficiently; the isolating layer plays a dual role in blocking outside bacteria and preventing adhesion; the fixing layer ensures that the whole gauze is stably fixed at the wound part; due to the layered structural design, the hemostatic gauze can effectively meet various requirements for hemostasis and follow-up nursing of a hemodialysis puncture part.

The utility model provides a novel hemodialysis bandage monitor. The novel hemodialysis bandage monitor comprises a mounting shell; the two bandages are fixedly connected to the two sides of the outer surface of the mounting shell respectively, an opening groove is formed in the middle of the bottom of the mounting shell, a monitoring instrument body is fixedly installed in the middle of the top of the opening groove, pressure pumps are fixedly installed on the two sides of the top of the opening groove, and vibration blocks are arranged at the bottom ends of output shafts of the pressure pumps; the arrangement groove is formed in the middle of the top of the vibration block, and a gluing device is arranged at the bottom of the vibration block. According to the novel hemodialysis bandage monitor, the hemostatic gauze is pasted to the bottom of the vibration block through the mucilage glue device, the vibration block is bound to the arm of a patient through the bandage, the output shaft of the pressure pump is controlled to move to push the vibration block to move up and down to press and stop bleeding at the acupuncture position of the patient, and the novel hemodialysis bandage monitor is simple in structure, high in practicability and suitable for popularization and application. And the pressing force is automatically controlled, so that the practicability and the flexibility of the device are improved.

The utility model discloses a kind of postoperative compression hemostasis devices of ear surgery, it includes headband bandage, and headband bandage is equipped with compression device, and compression device includes base, elastic air cushion and hemostatic gauze, base is connected with headband bandage, the rear end of elastic air cushion is detachably connected with base, hemostatic gauze is attached on the front end face of elastic air cushion and is fixed with elastic air cushion by connecting piece, the inside of elastic air cushion is equipped with pressure cavity and ventilation cavity, and the front end face of elastic air cushion is evenly distributed with several air holes, and the below of elastic air cushion is equipped with first airbag ball and second airbag ball for providing compressed air, first airbag ball is communicated with pressure cavity, and second airbag ball, ventilation cavity and air hole are sequentially communicated.The utility model provides a kind of postoperative compression hemostasis devices of ear surgery, and it is easy to operate for the compression hemostasis process of ear surgery postoperative incision position, can adjust pressure according to compression hemostasis effect arbitrarily, and can improve the air permeability of compression position.

The utility model discloses a fast hemostatic gauze with three layers of medicine line composite structure relates to medical supplies technical field, including gauze, the side of gause is close to the one end edge place and is overlapped with support layer, core layer and contact layer and is fixedly installed with the connecting strip of the other side of gauze, and the opposite side of connecting strip and support layer is close to the side of gauze one end flush, this scheme passes through the above of support layer after gauze bypasses human body hemorrhage position, then passes through connecting strip and reversely stacks in the above of support layer, can form three layers of gauze stacking, through the location of connecting strip, can make gauze pass through connecting strip after can conveniently tighten, increase the force of support layer, core layer and contact layer and the contact of wound place, through such structural design, can conveniently bandage fixed bleeding part when using, improves the stability of hemostasis.

The application discloses a medical material extraction machine, which comprises a frame, an outer cylinder arranged in the frame, a special inner cylinder arranged on the outer cylinder, a damping device arranged in the frame, a driving motor arranged in the frame, an evaporation fan arranged in the frame, an air heater arranged in the frame, a liquid pump arranged on the frame, a pipeline device arranged on the liquid pump, a rotating shaft arranged on the outer cylinder, a door body arranged on the frame and an exhaust valve arranged on the outer cylinder. The application relates to the medical material extraction machine, which has the characteristics of being suitable for the preparation of hemostatic gauze and scald gauze textile materials and being used for the cleaning replacement and evaporation of fibrous sodium alginate and integrating the functions of cleaning, extraction and evaporation.

The application provides an external wound hemostatic gauze injection device, which comprises an injection mechanism, an auxiliary mechanism arranged on the outer side of the injection mechanism and a hemostatic mechanism filled in the inner side of the injection mechanism; the injection mechanism comprises a syringe barrel, a piston rod slidably connected to the inside of the syringe barrel, and an injection end piston plate fixedly connected to the bottom end of the piston rod and movably arranged in the inside of the syringe barrel; the injection end piston plate is matched with the hemostatic mechanism through a connecting wire, so that the hemostatic mechanism can be prevented from falling off during the injection process in use; a supporting and reinforcing wire is matched with the hemostatic mechanism, so that the structural stability of the hemostatic mechanism is enhanced and the hemostatic mechanism can be prevented from being damaged due to the pushing force during the injection; the connecting wire and the supporting and reinforcing wire are both developing wire lines containing barium sulfate, can be developed under X-ray, are convenient to take out after being accidentally lost, can avoid causing adverse conditions due to residues, the hemostatic mechanism has good biocompatibility and degradability, can effectively stop bleeding, and can consider the hemostatic effect and use safety according to needs.

The invention provides novel multi-layer composite hemostatic gauze based on modified zeolite and a preparation method thereof. The gauze comprises a modified zeolite core layer from inside to outside, the content of Ca < 2 + > is increased to 6-13 wt% through ion exchange, 0.4-1.2 wt% of prothrombin activator is loaded, platelet activation is promoted through high-calcium zeolite, and the blood coagulation time is shortened to 46.7% of that of a conventional product. A temperature control buffer layer, a calcium alginate / polyethylene glycol hydrogel layer with the thickness of 5-10 [mu] m and a phase change material (octadecane microcapsule) containing 3-5 wt%, the phase change material generates phase change heat absorption at 42 DEG C, and the heat release peak value of zeolite is controlled to be 42 DEG C or below. The outer carrier is viscose fiber / silk blended gauze subjected to plasma treatment. The multi-layer composite zeolite hemostatic gauze can be applied to medical instruments for emergency treatment of war wounds, hemostasis in surgical operations and bleeding control of patients in anticoagulation treatment.

The invention discloses composite hemostatic gauze cured by an ionic cross-linked network and a preparation method of the composite hemostatic gauze, and relates to the technical field of biomedical materials and biological medicine manufacturing, and the preparation method of the composite hemostatic gauze cured by the ionic cross-linked network comprises the following steps: preparing a base material: taking a chitosan non-woven fabric as the base material; preparing sizing liquid; padding and sizing are conducted, specifically, a chitosan non-woven fabric base material is soaked in the sizing liquid to be subjected to padding and sizing treatment; pre-drying and sizing: pre-drying the sized chitosan non-woven fabric base material obtained in the padding and sizing step; in-situ cross-linking enhancement: immersing the pre-dried chitosan non-woven fabric base material obtained in the pre-drying and shaping step into a cross-linking solution containing metal ions for cross-linking reaction; and post-processing. The kaolin particles can be physically embedded on the chitosan non-woven fabric base material through the ionic cross-linked network, so that the falling rate of the kaolin is reduced, and the use risk of the composite hemostatic gauze is reduced.

The invention provides juncus roemerianus hemostatic gauze and a preparation method thereof, and belongs to the field of medical dressing preparation.The preparation method comprises the steps that PVA is dissolved in water, and a polyvinyl alcohol solution with the concentration being 5-15% wt is prepared; grinding the juncus roemerianus subjected to alkali treatment into powder, adding the powder into a polyvinyl alcohol solution, then adding a cross-linking agent solution, and uniformly stirring to obtain a mixed solution; uniformly coating gauze with the mixed solution, and then performing freeze thawing treatment for 2-4 times to obtain the juncus roemerianus hemostatic gauze. According to the method, the haemostatic gauze is directly prepared from the juncus roemerianus powder, the process is simple, the cost is low, and the haemostatic effect is good. The Juncus roemerianus with the three-dimensional net-shaped porous structure and PVA jointly form a gel skeleton, and the fiber grid structure of the medical gauze is wrapped in the skeleton, so that the hemostatic material can be prevented from falling off in the use process, and meanwhile, the adhesion of the gauze to a wound surface is moderately improved.

This invention relates to a chitosan-based smart hemostatic gauze doped with cerium-based nanozymes based on the molecular sieve effect, its preparation method, and its applications, belonging to the field of biomedical materials. The hemostatic gauze comprises a medical gauze substrate and a composite hemostatic coating loaded thereon. The coating consists of chitosan, Ce-MOF nanozymes, and a cross-linking agent. This invention is the first to introduce Ce-MOF, which possesses ultra-high porosity and enzyme-like catalytic activity, into a chitosan matrix. Utilizing its "molecular sieve" effect, it rapidly absorbs blood moisture, achieving second-level procoagulation. Simultaneously, the Ce-MOF nanozymes not only catalyze the generation of reactive oxygen species (ROS) in the bacterial microenvironment, achieving broad-spectrum bactericidal action without heavy metal toxicity, but also intelligently remove excess ROS from wound tissue, reducing inflammatory responses. Furthermore, the coordination-physical dual cross-linking network formed by Ce-MOF and chitosan significantly enhances the wet mechanical strength of the gauze, preventing wound adhesion. This invention has extremely high clinical translational value in trauma emergency care, massive bleeding control, and infected wound repair.

The invention discloses a hemostatic compressor for nephrology surgery, comprising a universal bracket (1) arranged at the edge of a bed, a main plate (2) provided at the movable end of the universal bracket (1), a hemostatic gauze (3) connected to the plate surface of the main plate (2) via an elastic member, a fixed plate (4) provided on the plate surface of the main plate (2), a transverse moving component (5) provided on the fixed plate (4), a fixed seat (6) provided on the movable end of the transverse moving component (5), a cylinder fixing frame (7) provided at one end of the fixing frame (6), a cylinder (8) provided in the cylinder fixing frame (7). The invention adapts to different puncture ports by adjusting the radial size of the pressing member, thereby realizing flexible pressing and hemostasis of the puncture port.

The application discloses antibacterial hemostatic gauze and a preparation method thereof. The application relates to the technical field of medical gauze. The preparation method comprises the following steps: after gauze is immersed in a solution containing X cations and dried, the gauze loaded with X cations after drying is immersed in a suspension prepared by mixing an aluminum-based mineral or an aluminum-based mineral composite material and sodium alginate, and then the gauze is dried and reinforced through a hot rolling process to obtain the antibacterial hemostatic gauze; wherein X is one or more of Zn, Ca, Cu and Sr. The application improves the binding force between the aluminum-based mineral or the aluminum-based mineral composite material and the gauze fibers, so that the aluminum-based mineral or the aluminum-based mineral composite material is tightly combined on the gauze fibers, and the problem of mineral material falling off of kaolin-based hemostatic gauze in the use process is effectively solved, and the application has high stability.