22results about How to "Improve hemostatic efficiency" patented technology

The invention discloses a bleeding point positioning method and device, electronic equipment and a medium. The bleeding point positioning method comprises the steps that continuous multiple frames of first images of a target area are acquired; performing image segmentation on the continuous multiple frames of first images to obtain at least one to-be-judged area; determining at least one to-be-determined area as a bleeding point area or a diffusion bleeding area, and obtaining a depth map of the target area for three-dimensional reconstruction to form a three-dimensional point cloud image; and marking a bleeding point area and a diffusion bleeding area in the three-dimensional point cloud image. According to the bleeding point positioning method and device, the electronic equipment and the medium provided by the invention, high-quality data is selected based on a video preprocessing algorithm, identification and three-dimensional reconstruction of the initial bleeding point and the diffusion bleeding area are carried out, the coordinates of the initial bleeding point are mapped to the point cloud coordinate system space through a point cloud registration method, and the positioning accuracy of the bleeding point is improved. Therefore, even if the bleeding range diffuses in the subsequent operation process, the original bleeding point coordinates can be accurately positioned, and the bleeding stopping efficiency can be effectively improved.

The utility model discloses an emergency patient rapid hemostasis device which comprises an arc-shaped seat, the surface of the arc-shaped seat is in an arc shape, a threaded rod is in threaded connection with an open groove in the arc-shaped seat in a penetrating mode, the top end of the threaded rod penetrates and extends to the outer side of the top of the arc-shaped seat, and a manual rotating disc is connected to the top end of the threaded rod. The bottom of the threaded rod penetrates and extends to the outer side of the bottom of the arc-shaped seat, a bottom bearing of the threaded rod is connected with a hemostasis pressing plate, and a mounting seat is mounted on the right side of the arc-shaped seat through a screw. According to the rapid hemostasis device for the emergency patients, the mounting seat is mounted at the right end of the arc-shaped seat through screws, and then the limiting bandage is connected to the left end of the arc-shaped seat in a sewing mode, so that when the patients need rapid hemostasis, the arc-shaped seat is arranged at the joints of the patients in a sleeving mode, and then the limiting bandage penetrates through the mounting seat and extends to the outer side of the mounting seat; then, the arc-shaped seat can be limited and fixed at the joint of the patient, and stable hemostasis treatment can be performed on the patient through the hemostasis pressing plate.

The application discloses a contact type laser scalpel convenient for speed control, and relates to the technical field of laser scalpel, which comprises a joint, a scalpel head arranged at the bottom end of the joint, and support assemblies symmetrically arranged on the two sides of the scalpel head; the support assembly comprises a spreading part, the spreading part is arranged in an inclined mode, the distance between the two spreading parts gradually decreases in the vertical upward direction, and the top end of the spreading part is hinged to the joint; the bottom end of the spreading part is in contact with human tissue S, and when the scalpel head is pushed down, the bottom ends of the two spreading parts gradually move away to push the wrinkled human tissue S flat. Two inclined spreading parts are symmetrically arranged on the two sides of the scalpel head, when the scalpel head is pushed down, the downward movement of the scalpel head can drive the bottom ends of the two spreading parts to gradually move away, so that the wrinkled human tissue S can be pushed flat, the bleeding part buried in the wrinkles is exposed, hemostasis is facilitated, the whole hemostasis process is short, the speed can be conveniently controlled, and the actual hemostasis efficiency is improved.

The utility model relates to the field of hemostasis ring equipment, in particular to a radial artery blood gas compression stopping ring which comprises a pressing block, one end of the pressing block is connected with an elastic belt, the other end of the pressing block is connected with a cloth belt, the end, away from the pressing block, of the elastic belt is fixedly connected with a circular plate, one side of the pressing block is provided with a hemostasis cotton piece, and the side, close to the hemostasis cotton piece, of the circular plate is provided with a hook-and-loop fastener rough surface. The side, away from the hemostatic cotton piece, of the cloth belt is provided with a hook-and-loop fastener thorn face. The hemostasis device has the effect of improving the hemostasis efficiency.

This invention proposes a visual human tissue rotary cutting device and its shell opening and closing control method, belonging to the field of shell medical device technology. The visual human tissue rotary cutting device includes a scalpel sheath, a blade, a ductoscope, an electrocoagulation hemostatic needle, a sampling chamber, and a puncture shell. The scalpel sheath is capable of axial feeding movement. The blade is installed in the scalpel sheath. The ductoscope is fixedly installed on the outer wall of the scalpel sheath. The electrocoagulation hemostatic needle is installed on the outer wall of the scalpel sheath and located on the opposite side of the ductoscope. The sampling chamber is connected to the scalpel sheath and an external vacuum device. The puncture shell includes a first half-shell and a second half-shell, which can be connected at their tail ends and open at their front ends, forming a bullet shape when combined. The lesion tissue is removed by rotating the blade, which completes axial cutting with the axial feeding of the scalpel sheath. The ductoscope provides the surgeon with a surgical field, which improves surgical accuracy and reduces recurrence. The electrocoagulation hemostatic needle is used to handle large-scale active bleeding.

The auxiliary pressing hemostasis equipment comprises a box body, a top cover, a pressing opening, an adjusting bolt and a storage roller, hinges are detachably installed on the two sides of the top end of the box body, the top cover is arranged at the position, on one side of the hinges, of the top end of the box body, the hinges are fixedly connected with the top cover, and the center of the top end of the box body is in threaded connection with an adjusting rod; the bottom of the adjusting rod is fixedly connected with the extrusion plate, the side wall of the adjusting rod above the extrusion plate is movably sleeved with a spring, and the top end of the spring is fixedly connected with the inner top end of the box body; the storage roller is arranged to store the hemostatic cotton, so that the hemostatic cotton can be quickly replaced without unfastening the device, and the hemostatic efficiency is improved.

The invention discloses an emergency pressurization hemostasis device, relates to the technical field of medical instruments, and particularly aims to solve the problems that in the background technology, an air bag of an existing hemostasis device is inconvenient to inflate under the outdoor and wartime conditions, and the hemostasis effect is poor due to the fact that hemostasis medicine powder is not arranged. Comprising an adjustable fastening belt composed of a first fastening belt body and a second fastening belt body, a pressurizing mechanism and a storage bin are arranged on the first fastening belt body, the pressurizing mechanism and the storage bin are used in cooperation, a wound can be pressurized, meanwhile, the storage bin is popped out through pressure, and therefore disposable disinfection articles, medicine powder and the like in the storage bin can be used; the hemostasis pastes are symmetrically arranged on the inner side of the fastening belt I and are similar to adhesive bandages, so that a simple hemostasis effect can be conveniently performed on wounds of patients outdoors and in wartime, the hemostasis effect is improved, and the problems existing in the background technology are solved.

This invention discloses a puncture positioning device for oncology, relating to the field of medical device technology. It includes a puncture needle assembly, a self-sealing assembly, a drug injection mechanism, and a disposable locator. The puncture needle assembly comprises a puncture needle tube and a puncture needle core. The puncture needle tube has a hollow structure, and the puncture needle core slidably passes through the inner wall of the puncture needle tube. The front end of the puncture needle tube has a puncture tip for easy penetration of human tissue. The self-sealing assembly includes an elastic sealing ring fixedly connected to the surface of the puncture needle tube. This invention, by setting an elastic sealing ring and a sliding sleeve on the surface of the puncture needle tube, allows the sliding sleeve to slide along the axial direction of the puncture needle tube. When the puncture needle penetrates the target tissue, it pushes the sliding sleeve forward, and a movable push rod compresses the elastic sealing ring, causing it to expand radially. This allows the edge of the elastic sealing ring to make close contact with the tissue wall, achieving closure of the needle tract and effectively reducing the risk of pneumothorax and bleeding.

The present invention discloses a zeolite kaolin composite hemostatic gauze and a preparation method thereof. The composite hemostatic gauze includes a flexible zeolite gauze and a kaolin-adhesive mixed coating; the flexible zeolite gauze is obtained by in-situ growth of zeolite, and the zeolite is directly connected to the flexible gauze substrate by a covalent bond; the kaolin-adhesive mixed coating is formed by coating kaolin or kaolin-like minerals and a binder on the flexible zeolite gauze after being evenly mixed and then dried, and it covers the flexible gauze substrate and part of the zeolite surface, but there is no zeolite between the flexible gauze substrate. The present invention introduces kaolin or kaolin-like minerals in the adhesive coating, so that kaolin or kaolin-like minerals and polymer latex particles are on the surface of the flexible gauze substrate and part of the zeolite surface, and there is a synergistic effect, which not only improves the hemostatic efficiency of the zeolite gauze, but also reduces the amount of binder used, significantly reduces the powder shedding rate, enhances material safety and stability, and extends the product shelf life.

The present invention discloses a radial artery compressor for cardiology nursing, belonging to the field of cardiology nursing equipment. It comprises an upper wrist piece and a lower wrist piece arranged in parallel, and the upper wrist piece and the lower wrist piece are arranged in an arc shape on opposite sides; lock buckles are symmetrically arranged on both sides of the upper wrist piece and the lower wrist piece, and a lock belt is wound between the lock buckles, and one end of the lock belt is provided with a Velcro that cooperates with each other; a switching component for switching the compression state is also provided on the upper wrist piece; the switching component comprises a support frame fixedly mounted on the upper surface of the upper wrist piece. By setting a switching component, the present invention can conveniently exchange the positions of the compression component and the acupressure component, thereby making it possible to intermittently compress and release the bleeding point of the radial artery. In addition, there is no need to manually rotate the handle repeatedly to pressurize or relieve the bleeding point, which improves the automation degree of the device and reduces the requirements for medical personnel, and is more suitable for clinical promotion.

The invention relates to the field of medical instruments. The invention discloses a hemostat coated with thrombin on the surface, and aims to solve the problem that when an existing hemostat is used for hemostasis operation on a puncture part of a thigh of a patient, a medical worker needs to press the hemostat when a puncture catheter is pulled out, so that the hemostat is pressed on the puncture catheter, and the puncture catheter cannot be pulled out. Therefore, bleeding of the legs of the patient when the puncture catheter is pulled out is avoided, two medical workers need to cooperate with each other in the operation, pressure needs to be applied to the legs of the patient continuously after the puncture catheter is pulled out, the pressure value of manual pressure application by the medical workers is not easy to control, and the condition that the puncture catheter deviates easily when being pulled out is avoided. An operator firstly adjusts the setting position of the adjusting sliding block on the fixing sleeve, an initial pressure value is set through the adjusting sliding block, when the operator pulls out a puncture catheter, proper pressure is provided, and the condition that the legs of a patient bleeding when the catheter is pulled out is avoided.

The present invention relates to the field of medical devices. The present invention discloses a hemostat with thrombin coated on the surface. The problem to be solved by the present invention is that when the existing hemostat performs a hemostatic operation on the puncture site on the patient's thigh, the medical staff needs to press the hemostat when pulling out the puncture catheter, so that the hemostat is pressed on the puncture catheter, thereby avoiding bleeding from the patient's leg when the puncture catheter is pulled out. This operation requires cooperation between two medical staff, and after the puncture catheter is pulled out, it is necessary to continue to apply pressure to the patient's leg. The pressure value manually applied by the medical staff is not easy to control, and it is easy to cause deviation when the puncture catheter is pulled out. The present invention allows the operator to first adjust the setting position of the adjustment slider on the fixed sleeve, and set the initial pressure value by adjusting the slider, so that when the operator pulls out the puncture catheter, appropriate pressure is provided to avoid bleeding from the patient's leg when the catheter is pulled out.

The utility model relates to the field of hemostatic patches, in particular to a hemostatic patch. Comprising a hemostasis patch body, a pressing groove is formed in one side of the hemostasis patch body, glue is glued to one side of the hemostasis patch body, a sticker is glued to the side, away from the hemostasis patch body, of the glue, an air bag is fixedly connected to the inner wall of the pressing groove, and the size of the air bag is matched with that of the inner wall of the pressing groove. According to the hemostatic patch provided by the utility model, when the hemostatic patch is used, the silver ion hemostatic cotton on the upper surface of the air bag can cover a wound of a person, and then the hemostatic patch is pressed, so that a blood vessel and a skin puncture opening can be pressed at the same time, the effects of resisting bacteria and diminishing inflammation are achieved, and the hemostatic efficiency is improved; a larger compression area can be formed, the protruding arc-shaped portion corresponds to a pressing point of a blood vessel puncture opening, the blood vessel exudation pressure at the position is high, the air bag can form larger compression force, and the more effective hemostasis effect can be achieved.

The utility model discloses a quick hemostasis bag convenient to operate, which comprises a hemostasis bag main body, the bottom of the hemostasis bag main body is fixedly connected with a medicine powder placing box, the hemostasis bag main body comprises a control box shell, the top of the control box shell is designed to be arc-shaped, the left side and the right side of the control box shell are respectively provided with a bandage extending groove, and the bandage extending grooves are connected with the control box shell. The front side of the control box shell is fixedly connected with a control block, the control block comprises a control block shell, and by arranging the control block and a bandage placing roller, when the bandage is used for stopping bleeding of a wound, the bandage placing roller is rotated only by rotating a rotating handle, so that the bandage stretches out and draws back from a bandage stretching-out groove to adapt to the arm circumference or the leg circumference of the wound of a wounded person; the bandage does not need to be knotted and fixed, the bandage is prevented from loosening and being poor in hemostasis effect, meanwhile, unnecessary tension cannot be generated in the winding process of the bandage, the pain feeling of a patient is reduced, and the hemostasis efficiency is improved.

The invention discloses a rapid hemostasis device, and relates to the technical field of hemostasis. The hemostasis rate is increased; comprising an inflation mechanism used for inflating a hemostasis mechanism, the hemostasis mechanism comprises an extrusion bag, a placement plate and a connecting pipe, the connecting pipe is fixedly embedded into the inner wall of a through hole formed in the surface of the placement plate, the extrusion bag is bonded to the top of the connecting pipe, a one-way connector piece is connected to the bottom of the connecting pipe, and binding pieces are fixed to the two sides of the placement plate; the inflation mechanism comprises an inflator and an electromagnet, the electromagnet is fixed to the inner wall of the top of the inflator, a positioning shell is integrally formed on the top of the inflator, a butt joint pipe is welded to the inner wall of the bottom of the positioning shell, and a through hole formed in the bottom of the inflator is movably connected with a middle pipe. By arranging the electromagnet, after the electromagnet is electrified, the piston plate is driven by repulsive force between the electromagnet and the piston plate to move along the inflator, the extrusion bag is inflated, the blood vessel is pressed after the extrusion bag is inflated, and hemostasis is achieved.

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 utility model provides a puncture point hemostasis device which comprises a base lining, a bonding layer arranged at the bottom end of the base lining, an opening formed in the middle of the bonding layer, hemostasis dressing arranged at the position, located in the middle of the opening, of the bottom end of the base lining, a fixing pipe installed at the top end of the base lining, a first annular limiting block arranged on the inner wall of the fixing pipe, and a pressing block arranged in the fixing pipe. The bottom end of the pressing block is fixedly connected with a hemostasis block, the hemostasis block is arranged in the middle of the first annular limiting block, the outer wall of the hemostasis block is fixedly connected with a second annular limiting block, and the hemostasis device is pasted to a puncture point through the pasting layer; the body surface of a patient cannot be dermatitis due to allergy when the hemostasis device is used through the bonding layer made of the hydrocolloid dressing layer, effective hemostasis can be carried out on a puncture point through the alginate medical dressing, the hemostasis block descends by pressing the pressing block downwards, compression hemostasis can be carried out on the puncture point through the hemostasis block, and the hemostasis effect is good. And the hemostasis efficiency of a puncture point is effectively improved.

This invention belongs to the field of genetic engineering technology, specifically relating to a modular tandem repeat recombinant type III collagen with high platelet adhesion and its applications. The amino acid sequence of the recombinant type III collagen includes repeating units, with ≥3 repeating units; functional modules are inserted within each repeating unit. This invention integrates multiple discrete platelet-binding sites in type III collagen, designs a tandem repeat structure of different modular sequences (≥3 repeating units), optimizes spatial synergy, optimizes the gene sequence using codon bias, efficiently expresses the gene through a Pichia pastoris expression system, and obtains a high-purity product after purification. The recombinant type III collagen prepared by this invention exhibits good biocompatibility and can significantly promote erythrocyte and platelet adhesion; it can be widely used in wound repair, hemostatic materials, and tissue engineering.

The invention discloses a hemostatic clip, and relates to the technical field of hemostatic clips, the hemostatic clip comprises a clamping part, and the clamping part comprises a clamping sleeve, a clamping plate, a bending plate and a driving column; the bending plates are arranged on the clamping sleeves, and the clamping plates are symmetrically arranged and connected to the two ends of the clamping plates correspondingly. The driving column is arranged in the clamping sleeve in a sliding and penetrating mode, and the driving column is rotationally connected to the bending plate; expansion plates are arranged on the opposite sides opposite to the clamping plates in a sliding mode respectively, the clamping plates are provided with guide columns, and the guide columns guide the expansion plates to slide towards the outside of the clamping plates. And the driving assembly is connected with the clamping sleeve and the clamping plate, and when the driving column rotates, the driving assembly drives the expansion plate to slide out of the clamping plate. The hemostasis speed can be increased.

The invention discloses a preparation method of adhesive recombinant collagen chitosan composite microspheres capable of efficiently stopping bleeding. The preparation method comprises the following steps: 1, preparing chitosan grafted with gallic acid; 2, dispersing the recombinant collagen and the chitosan grafted with gallic acid into deionized water to obtain a water phase; 3, adding a surfactant into petroleum ether to obtain an oil phase; 4, injecting the oil phase into the water phase, emulsifying, and cooling to obtain an emulsion; 5, blending a cross-linking agent, water and absolute ethyl alcohol, and pre-cooling to obtain a stationary liquid; and 6, adding the stationary liquid into the emulsified liquid for curing, washing and freeze-drying to obtain the recombinant collagen chitosan composite microspheres. The prepared composite microspheres are excellent in performance and can be widely applied to the medical instrument industry as styptic powder, and an efficient, safe and reliable styptic material is provided for the medical field.

The utility model discloses a blood vessel occluder which comprises a gasket, an occluding sponge, a first driving part and a second driving part, and the gasket is arranged in an outer tube in a sliding mode; the plugging sponge is slidably arranged in the outer pipe and is arranged at the opening end, away from the outer pipe, of the gasket; the first driving part is arranged in the outer pipe in a sliding manner and is in contact with the gasket; the second driving part is arranged in the outer pipe in a sliding manner and is in contact with the plugging sponge; the plugging sponge comprises a first expansion piece and a second expansion piece, the first expansion piece and the second expansion piece are embedded, the embedded ends of the first expansion piece and the second expansion piece are arranged close to the gasket, one of the first expansion piece and the second expansion piece is an expansion piece which expands axially, and the other one is an expansion piece which expands radially. According to the blood vessel plugging device, better compression can be formed on a blood vessel wound, the plugging effect is better, the hemostasis time is shortened, and the hemostasis efficiency is improved.

The invention provides an intelligent full-automatic tourniquet, which relates to the technical field of medical instruments and comprises a pressure control component, a cuff and an electronic control screen arranged on the cuff, the pressure control part is connected with the cuff through an air guide pipe, and the pressure control part is used for conducting inflation and deflation operation on the cuff; the cuff has preset flexibility, and a plurality of pressure sensors and bleeding detection sensors are arranged on the contact surface of the cuff and the skin of a patient at equal intervals; through the arrangement of the pressure control component, the electronic control screen, the pressure sensor and the bleeding detection sensor, when a patient uses the hemostat, the bleeding condition can be rapidly and accurately controlled, precise pressure control can be conducted, the damage degree to surrounding skin tissue is reduced, and the hemostasis efficiency is improved; and through the arrangement of the control button and the electronic control screen, the use is convenient, and the device is suitable for various emergency scenes.