64 results about "Massive haemorrhage" patented technology

The invention relates to an absorbable antibacterial hemostatic microsphere, a preparation method and application of the absorbable antibacterial hemostatic microsphere. The absorbable antibacterial hemostatic microsphere is prepared from carboxymethyl chitosan, sodium alginate, gelatin and lysozyme. The absorbable antibacterial hemostatic microsphere disclosed by the invention can be used for carrying out quick hemostasis on a massive haemorrhage wound and preventing the massive haemorrhage wound from being infected by bacteria; the absorbable antibacterial hemostatic microsphere has good biocompatibility, can be degraded and absorbed and is capable of promoting the wound healing. The invention also discloses the effect of the application of the composite absorbable antibacterial hemostatic microsphere in hemostasis of New Zealand rabbit hemihepatectomy.

The invention relates to a trachea cannula device suitable for bronchoscope operation emptysis rescue and difficult airways. The trachea cannula device comprises a trachea cannula, a trachea cannula inner core and a guide wire, wherein the trachea cannula and the trachea cannula inner core have radians; a respirator pipeline interface is tightly inserted into the upper end of the trachea cannula; the trachea cannula inner core is sleeved into a trachea cannula cavity of a corresponding inner diameter; the lower section of the trachea cannula inner core extends out of the lower end of the trachea cannula; a hollow guide wire tube which is about 2.5 millimeters in diameter passes through the tube cavity of the cannula inner core; the lower end of the guide wire tube is connected and communicated with a guide wire head; and the lower end of the guide wire tube passes through an interface plug, and is communicated with the outside. The device disclosed by the invention can be used for completing tracheal intubation quickly and effectively for complicated airway massive haemorrhage during bronchoscope operation, and is suitable for an anaesthetist to perform endermic reverse tracheal intubation on difficult airways simultaneously. In an intubation process, operation is easy, convenient, rapid and accurate, and wounds are small. By means of trachea cannulas of different specifications, the device is suitable for infants to adults. The device is particularly suitable for being prepared for hospitals of all stages for performing bronchoscope operation and / or general anesthesia surgery.

The invention discloses a styptic blocked plug for a viscera puncture path, which comprises a shell and an interior core, wherein the shell is provided with an opening and is made of a hydrophilic and resolvable organism degradable material, and the interior core is arranged in the shell and is mainly made of gelatin sponge. The styptic blocked plug for the viscera puncture path of the invention can not only ensure that the gelatin sponge takes the effect of hemostasia immediately, but also prevent the gelatin sponge from absorbing water prematurely to bulge. Therefore, the gelatin sponge is easily pushed to the deep part of the puncture path and cannot be dashed out easily by blood, all gelatin sponge grains are released to take the durative effect of hemostasia after the shell thaws. The styptic blocked plug has accurate, reliable, good and thorough effects of blocking and hemostasia, which is capable of curing maniple hemorrhage of the puncture path effectively and reducing or getting rid of the risk of secondary hemorrhage and massive haemorrhage; the styptic blocked plug also has a better styptic effect on the massive haemorrhage of the puncture path; and the styptic blocked plug has the advantages of wide material resource, low cost, simple preparation, convenient use, no any toxic and side effect and wide application prospect.

The invention relates to a quick emergency tourniquet used for blood transfusion, transfusion, blood drawing and hemostasis in medical rescue and a preparation method and use thereof. The tourniquet comprises two layers. Blood at the trauma is first contacted with outer carbonized hair through medical textile, and the carbonized hair has the hemostatic effect and does not emit heat. An inner zeolite hemostatic material can effectively consolidate hemostasis and instantaneously generated heat can be isolated from the outer carbonized hair without leading to burning of the trauma. The hemostatic material is not directly scattered at the trauma for the convenience of posttreatment of surface of the trauma in hemostasis. The use level of zeolite in the tourniquet is reduced by more than 1 / 2 that of the zeolite tourniquet, and the tourniquet is lighter, remarkable in effect for hemostasis, in particular massive haemorrhage, and small in side effect, so that cross infection of pathogenic bacteria in the treatment process is avoided, and the deficiencies of current common hemostatic products are overcome. The emergency tourniquet is more suitable for large-scale production and commercial application in medical and medical apparatus industries and the like, and in particular to application at wartime or disaster relief. The emergency tourniquet has a good application prospect as well as remarkable social and economic benefits.

The invention discloses a magnetic device applicable to anastomosis of large vessels. Two elliptic-cylinder-shaped anastomosing rings which correspond to the pipe diameter of the large vessels to be anastomosed and contain permanent magnets are utilized to finish anastomosis of the vessels with different pipe diameters; the opposite surfaces of two permanent magnet anastomosing rings are smooth and polished, so that the endangiums of the vessels are neatly aligned, and further the defects of narrow anastomosing ports, blood leakage, and various complications such as massive haemorrhage, local tissue granuloma and pseudoartery formation and the like due to slipping of ligatures caused by manual suture for anastomosis are avoided; as the anastomosing rings are designed to be elliptic-cylinder-shaped, clamping and fixing with surgical instruments in surgery are convenient, and the magnetic device is very beneficial to anastomosis operation of the large vessels at deep parts of the body cavity; and the time of utilizing the anastomat to carry out anastomosis on the large vessels is more than five times shorter than that of manual anastomosis, so that the condition that the blood of tissues and organs are blocked for long time so as to cause ischemic operation of the organs or congestion and edema and further cause dysfunction of the organs. In addition, the end surface adopts conical titanium alloy needles and corresponding conical small holes so as to be beneficial to tight alignment of the anastomosing ports in surgery.

The invention relates to a multifunctional wristband for monitoring an internal arteriovenous fistula of a hemodialysis patient. The multifunctional wristband for monitoring the internal arteriovenousfistula of the hemodialysis patient comprises a wrist strap, wherein an internal fistula monitoring module and a temperature sensor are located on a skin side of the wrist strap, the internal fistulamonitoring module comprises an internal fistula natural blood flow volume monitor, a vascular wall thickness monitoring module and an internal fistula tremor and internal fistula pulsation monitoringmodule, and an alarming device, a display, a wireless communication module and a controller are arranged on the wrist strap. The multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can detect the natural blood flow volume, tremors and pulsation of the internal fistula, the vascular wall thickness and the body temperature of the hemodialysis patient, and can protect the internal fistula from trauma at the same time to prevent pseudoaneurysm, so that the internal fistula is subjected to good monitoring, protection and remote management, and the life of a lifeline (vascular access) is prolonged; the multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can give different alarming prompts according to different situations to remind the patient of timely medical treatment, so that timely rescue of the internal fistula is facilitated; and an elastic buffering layer is arranged on the innersurface of the wrist strap, and has a buffering function when the internal fistula part is under external attack, and then damage to functions of the internal fistula and local massive hemorrhage areprevented, so that the elastic buffering layer plays a role in effectively protecting the internal fistula.

The invention discloses a releasable choledochoscope calculus-extracting netting basket which comprises a handle, a push rod, a netting basket body and an outer sleeve with the top end sealed. During extracting of calculus, the calculus is clamped between a first netting basket wire and a second netting basket wire, gas is enabled to enter a netting bag to plump the same, and the outer sleeve is pulled to hold the calculus in the netting bag to move out of a body, so that the netting basket is simple in extracting process, high in accuracy, low in requirements on skills of an operator and high in suitability; when encountering a blockage, a sealing valve on a gas outlet is opened, the gas in the netting bag is discharged to release the calculus, an inner core rod is rotated relative to an outer-layer rod so as to adjust a distance between the first netting basket wire and the second netting basket wire, and the outer sleeve is pulled to take the calculus-extracting netting basket out to avoid incarceration, so that the problem of simultaneous diastasis or partial diastasis of the calculus and a metal head in the prior art is avoided, the netting basket can be taken out smoothly, other complications like surgery and massive haemorrhage are avoided, and surgical risk is lowered.

The invention relates to an uterus hemostat for postpartum hemorrhage. The uterus hemostat for postpartum hemorrhage mainly comprises a truncated cone-shaped sucker 1, an air extraction tube 2, a three-channel tube 3, a self-sealing air extraction tube joint 4, an intrauterine catheter 5, a self-sealing intrauterine catheter joint 6, an intrauterine balloon 7, a balloon catheter 8 and a balloon catheter self-sealing joint 9. According to the invention, a hemostatic balloon and a uterus external sucker are placed in the uterus with postpartum hemorrhage to realize a uterus external supporting effect; therefore, the hemostatic effect of the traditional balloon is improved; the uterus hemostat for postpartum hemorrhage can preferably and more reliably work.

The invention discloses a novel multipurpose loop ligature device. The novel multipurpose loop ligature device comprises a medical surgery silk thread and a gun body, and further comprises a draft device, an operating device and a tightening device, the medical surgery silk thread is knitted into double single knots to form a tightening coil and a loop ligature coil, the cross part of the tightening coil and the loop ligature coil is a tightening knot, and the overall medical surgery silk thread is in a stress state; the gun body is of a cavity structure, and is provided with a vent hole switch and a negative pressure connector which are communicated with the cavity, the vent hole switch is located on a holding handle of the gun body, the negative pressure connector is located at the lower end of the holding handle of the gun body, the inside of the gun body is fixedly connected with the draft device, and the outside of the gun body is movably connected with the operating device through a U-shaped limiting connecting piece. The medical surgery silk thread is still selected and utilized in a loop ligature material, the materials are totally differently from rubber gasket types of materials (including elastic threads), the situation that silk threads which are adopted in manual ligation reoccurs, and the potential safety hazard that massive haemorrhage occurs at a residual end caused when the rubber gaskets are aged and slip off in advance is avoided.

The invention discloses a graphene / oxidized regenerated cellulose compound hemostatic material and a preparation method thereof, relates to a hemostatic material and a preparation method of the hemostatic material, and aims at solving the problems that an existing hemostatic material is high in price, and low in bleeding-stopping rate, and cannot be applied to massive haemorrhage. The graphene / oxidized regenerated cellulose compound hemostatic material is prepared from redox graphene and filament fabric of the oxidized regenerated cellulose, wherein the mass ratio of the redox graphene to the filament fabric of the oxidized regenerated cellulose is (0.05-10) to 100. The method comprises the following steps: 1 preparing a graphene solution; and 2 ultrasonically treating and freeze-drying to obtain the graphene / oxidized regenerated cellulose compound hemostatic material. The graphene / oxidized regenerated cellulose compound hemostatic material prepared by the method is used for stopping bleeding; the bleeding-stopping time is reduced by 6%-15%. By adopting the preparation method, the graphene / oxidized regenerated cellulose compound hemostatic material can be obtained.

The invention discloses a body cavity drainage tube suit. The body cavity drainage tube suit comprises a front air bag sleeve, an outer cannula, an air bag inflation tube, a diluent tube, an air pressure adjusting tube and a body cavity wall sheath. According to the body cavity drainage tube suit, the structural design is ingenious and reasonable, due to the arrangement of the front air bag sleeve, the original pressing point contact is replaced with the surface contact of an air bag, the probability that tissue and organs inside a body can be damaged due to the fact that a drainage tube is left inside the body for a long time is greatly reduced, and the occurrence rate of common clinic complications such as digestive tract fistula and massive haemorrhage inside the pleuroperitoneal cavity is decreased obviously; due to the fact that the diluent tube and the air pressure adjusting tube are arranged inside the outer cannula, water and gas needed by the drainage end are provided; due to the arrangement of the body cavity wall sheath, the outer cannula can be rotated independently to achieve a better drainage effect in a drainage process, pain suffered by a patient can be greatly relieved due to the fact that the friction between the body cavity wall and the outer cannula is avoided when the outer cannula is rotated, the drainage tolerance of the patient is improved, damage is small, and the safety and the effectiveness of a drainage operation are effectively improved. In addition, the body cavity drainage tube suit has the advantages of being simple in overall structure, easy to manufacture, low in cost, and is capable of being popularized widely.

The invention relates to a paper diaper. The paper diaper comprises a paper diaper body as well as a sensor layer and a control module which are arranged on the paper diaper body. The paper diaper body comprises a solution absorption area and a fixed area, the solution absorption area is used for absorbing a leaked solution, the fixed area is used for fixing the solution absorption area to a preset position of a human body. The sensor layer is arranged in the solution absorption area of the paper diaper body and used for acquiring relevant parameters of the solution absorption area; the control module is arranged in the fixed area of the paper diaper body and is connected with the impedance sensor layer and used for receiving and calculating impedance parameters acquired by the impedance sensor layer to obtain an absorption solution amount and performing the corresponding prompt according to the absorption solution amount. By adopting the paper diaper, the bleeding condition of a patient can be monitored in real time so as to prevent from missing the rescuing time, and the absorption solution amount of the paper diaper can be obtained according to the precise measurement of the impedance parameter, so that whether the user has the massive haemorrhage phenomenon can be further determined, and a purpose of detecting the prompt in real time can be achieved.

The invention discloses a compound drug composition for delivery and an application of the compound drug composition. The compound drug composition for the delivery comprises the following active ingredients: oxytocin and methylergonovine, wherein methylergonovine is present in a form of free or pharmaceutically acceptable salt. The compound drug composition for the delivery can achieve purposes of attenuation and synergism; compared with the prior art, the compound drug composition has stronger activity, takes effect more quickly and has longer duration and smaller adverse reactions; and the composition can be prepared into the drug composition drug administered to mammals including human beings, and is used for treating massive haemorrhage caused by active intervention at the third stage of labor and after the delivery.

The invention relates to a synchronous blood doping system applied to a haemorrhage patient in a surgery. The synchronous blood doping system applied to the haemorrhage patient in the surgery resolves the problems that blood doping for the haemorrhage patient in the surgery is not timely and the supplemented blood is not sufficient, and reduces the life risks generated when the blood can not be supplemented timely and sufficiently for the patient with massive haemorrhage. The transfused blood is the autoblood of the patient, so that the blood transfusion cost and transfusion risks are reduced for the patient in the surgery. The synchronous blood doping system applied to the haemorrhage patient in the surgery is composed of a bleeding amount monitoring device, a blood doping pipeline, a blood doping pump, a blood filtering net, a blood doping safety device and a saline feeding device. The bleeding amount monitoring device dynamically adjusts the speed of the blood doping pump according to the bleeding amount in the surgery to achieve balance between the blood doping amount and the bleeding amount. The blood doping safety device monitors the whole blood doping process, prevents abnormal pressure of the pipeline and prevents air from entering the body of the patient. The saline feeding device plays a role in keeping the blood doping pipeline through and preventing bleed from coagulation.

The invention provides a Chinese medicine compound preparation for preventing and treating the abnormal uterine bleeding after medical abortion, and relates to the gynecologic Chinese medicine field.By taking the anti-early pregnancy drugs, pregnant women can avoid the uteroventral operation, thus the suffering of patients can be relieved; however, the problems of excessive haemorrhage and long bleeding time can occur; the curative effect of the existing medicines is dissatisfactory, and no medicine, which is specially used for treating the abnormal uterine bleeding after medical abortion andhas good curative effect, comprehensive efficacy but no side effect, is reported. The invention takes motherwort as monarch drug, purslane, raw cattail pollen and radix cyathulae as ministerial drugs, bitter orange, agrimony, angelica and radix codonopsitis as adjuvant drugs and liquoric root as envoy drug to prepare the compound preparation. Proved by plenty of clinical experiments, the invention has the advantages of activating blood circulation but no massive haemorrhage, removing stasis, clearing heat, stopping bleeding but no stagnation, nourishing blood, invigorating qi, shortening bleeding time, reducing bleeding amount, no toxic and side effect and convenience for being taken.

The invention relates to the field of biomedical engineering, and discloses a hemostatic agent for hemorrhage of jaw central hemangioma, and a preparation method and application thereof. Chitosan powder and organic weak acid are added into organic alcohol for reaction to prepare chitosan weak acid salt; and the chitosan weak acid salt and carboxymethyl chitosan are proportionally mixed to obtain the hemostatic agent disclosed by the invention. The hemostatic agent has high fluidity and plasticity, is applied to the hemostasis of hemorrhage of jaw central hemangioma and can fast reach a hemorrhagic spot of the jaw central hemangioma; tissues are not irritated; no harm is generated on the tissues; the bacterial growth can be inhibited; the cross infection is avoided; the cleaning and the clearing are easy; and the hemostatic agent is a safe and extremely effective hemostatic agent for treating massive hemorrhage of the jaw central hemangioma, and is worthy of clinical popularization. Meanwhile, the hemostatic agent can also be used as a hemostatic agent for hemorrhagic spots of tissue lacunas of special structures.

The invention relates to a foot treading type leg pressing hemostasis device. The device comprises a hand-held bottom plate, a support frame and a hemostasis device body, the front end of the hand-held bottom plate is provided with the support frame, and the rear end of the hand-held bottom plate is provided with the hemostasis device body. The problems are solved that legs need to keep a bent state during massive haemorrhage of thighs of people outdoors, people cannot keep the bent state for a long time due to pain and need help of other people on the side, thigh arteries need to be fastenedduring massive haemorrhage of the thighs, existing tourniquets are likely to loose after a period of time of fastening and cannot achieve the hemostasis function, and accordingly people need to carryout secondary fastening. The device has the advantages that the thighs of wounded personnel are kept in the bent state for a long time, the thigh root arteries are subjected to fastening and hemostasis, loosening is avoided, help of other people is not needed, and the operation is convenient.

The invention discloses a novel composite material for sterilization, disinfection and rapid hemostasis as well as preparation and application. Firstly, mesoporous chabazite non-woven fabric is prepared, then the mesoporous chabazite non-woven fabric is taken as a matrix, silver nitrate and beta-cyclodextrin are added, and pH is adjusted to be alkaline, so that the outer surface of the mesoporous chabazite non-woven fabric is coated with a layer of silver nanoparticle material. Mesoporous chabazite is attached to the surface of non-woven fabric fiber by a template-free in-situ growth method, so that the non-woven fabric fiber is tightly joined with the zeolite. The beta-cyclodextrin has reducing capacity and stabilizing capacity in the AgNPs (nanoparticles) synthesis process, so that Ag ions can be reduced into Ag atoms by adjusting pH to be alkaline, and AgNPs are formed in situ. The mesoporous chabazite non-woven fabric has excellent hemostatic performance and can be used for massive hemorrhage of wounds. The AgNPs have good antibacterial performance and can effectively avoid re-infection of wounds, the purposes of stopping bleeding and resisting bacteria can be achieved through combination of the mesoporous chabazite non-woven fabric and the AgNPs, and the death rate of massive hemorrhage is greatly reduced.

The invention provides a Chinese medicine compound preparation for preventing and treating the abnormal uterine bleeding after medical abortion, and relates to the gynecologic Chinese medicine field. By taking the anti-early pregnancy drugs, pregnant women can avoid the uteroventral operation, thus the suffering of patients can be relieved; however, the problems of excessive haemorrhage and long bleeding time can occur; the curative effect of the existing medicines is dissatisfactory, and no medicine, which is specially used for treating the abnormal uterine bleeding after medical abortion and has good curative effect, comprehensive efficacy but no side effect, is reported. The invention takes motherwort as monarch drug, purslane, raw cattail pollen and radix cyathulae as ministerial drugs, bitter orange, agrimony, angelica and radix codonopsitis as adjuvant drugs and liquoric root as envoy drug to prepare the compound preparation. Proved by plenty of clinical experiments, the invention has the advantages of activating blood circulation but no massive haemorrhage, removing stasis, clearing heat, stopping bleeding but no stagnation, nourishing blood, invigorating qi, shortening bleeding time, reducing bleeding amount, no toxic and side effect and convenience for being taken.

The invention discloses a method for evaluating the blood supply state of parathyroid glands in an operation, which comprises the following steps of: in a thyroid operation, identifying and confirming parathyroid glands, fixing the parathyroid glands by using tweezers, taking out a needle head to puncture the envelop of the parathyroid glands, puncturing the parathyroid glands into the glands, pulling out the needle head, and observing the bleeding condition on a needle eye on the parathyroid glands. The blood supply state of the parathyroid gland is evaluated according to the grading of the bleeding condition, and whether the parathyroid gland is suitable for in-situ retention or autotransplantation is determined. The blood supply condition is determined by directly puncturing the parathyroid gland, the method is safe, accurate and reliable, the operation is simple and convenient, time is saved, meanwhile, special equipment is not needed, and the method can be widely developed and applied clinically; the syringe needle with the size can ensure that the blood supply state of the parathyroid gland can be accurately evaluated, massive hemorrhage of the parathyroid gland cannot be caused, and the syringe needle is safe and efficient.

The invention relates to an aorta abdominalis hemostasis instrument and provides a belt type aorta abdominalis compression hemostat which comprises a flexible pressure module, a body binding module and a pressure adjusting module. The flexible pressure module and the pressure adjusting module are connected with the body binding module in a riveting mode. The belt type aorta abdominalis compression hemostat is a special instrument for hypogastrium compression hemostasis. An airtight airbag is filled with air, a cloth bag body is stretched tightly so that the body hypogastrium and the pelvis area can be compressed suitably to block blood flow of the aorta abdominalis, and the function of compression hemostasis is achieved. The belt type aorta abdominalis compression hemostat is particularly suitable for emergency of pelvis injury bleeding and severe lower limb injury bleeding, and prevents blood from losing fast. The belt type aorta abdominalis compression hemostat has the advantages of being simple in structure, reasonable in design, exact in effect, convenient to use and accurate and adjustable in compression, and the adjusting mode is simple and easy to implement. The belt type aorta abdominalis compression hemostat can be used for hemostasis of massive haemorrhage of parts where a common tourniquet is difficult to apply, and be used in pre-hospital care, blood supply for the important heart, the important brain and the important organs is guaranteed, valuable time for follow-up treatment is gained, the function of saving the lives of the wounded is achieved, and the compression hemostat is a special device for pre-hospital care of the massive haemorrhage of the special parts.

The invention discloses a multifunctional ECMO circulating pipeline and a method for performing extracorporeal membrane oxygenation by utilizing the multifunctional ECMO circulating pipeline. The ECMO circulating pipeline comprises an arterial circulating pipeline, a venous circulating pipeline, a blood purification inlet catheter and a blood purification transfusing catheter, wherein blood oxygen sensors are arranged on the arterial circulating pipeline and the venous circulating pipeline, and the blood oxygen sensors are connected with a blood gas detecting device; one-way valves are separately arranged at the ends, near the circulating pipeline, of the blood purification inlet catheter and the blood purification transfusing catheter. According to the ECMO circulating pipeline disclosed by the invention, the oxygen partial pressure of blood can be monitored in real time before and after blood oxygenation, the difficult problem that during an ECMO treatment period, blood collecting on two end pipelines is difficult, and the spraying probability of blood or a flushing fluid is high, can be solved, the oxygen partial pressure of the blood is detected in an nondestructive manner, and patients do not need puncture of major vascular pipelines twice; the blood oxygenation and the hemodialysis can be simultaneously realized by utilizing the ECMO pipeline, so that the pain of people can be reduced, and probable massive haemorrhage and infection can be effectively reduced.

The invention relates to a portable and dismountable-mountable arteriovenous local compression hemostasis apparatus, which comprises a bottom bracket part, a horizontal adjusting part, a vertical adjusting part and a pressure adaptive hemostasis part, wherein the bottom bracket part is in locating inserting connection with the vertical adjusting part by virtue of a ball plunger; the horizontal adjusting part is connected to the vertical adjusting part by virtue of a three-way connecting tube; by virtue of a fastening bandage, the hemostasis apparatus is bound to a patient; the pressure adaptive hemostasis part is connected to the vertical adjusting part; according to the pressure adaptive hemostasis part, a stressed pressing rod is locked by virtue of a locating clamping plate in a unidirectional back-stop mode, so that a hemostasis compression ball, which is arranged at the front end of the pressure adaptive hemostasis part, is made to conduct fixed-pressure compression hemostasis on a hemostasis site; and by adjusting opposite positions of an inner transverse tube and an inner vertical tube, accurate location of the hemostasis site can be rapidly implemented so as to adapt to patients of various figures. The hemostasis apparatus provided by the invention has the beneficial effects that the hemostasis apparatus is applicable to first-aid hemostasis on parts, where a conventional tourniquet cannot be applied easily, such as inguinal arteries and veins, so that precious time is striven for subsequent treatment; and the hemostasis apparatus can serve as a novel pre-hospital first-aid hemostasis apparatus applied to massive haemorrhage at special body parts.

The invention discloses a combined nephroscope which comprises a core nephroscope and an expander for visual expansion. The core nephroscope comprises a photographing system, a light source system anda first passage, and the expander is used for being sleeve-fitted with the core nephroscope for visual expansion and comprises an expander inner core and an expander outer sheath. By adopting the combined nephroscope, blind expansion in conventional art is completely avoided, and inserting depth of the expander and the core nephroscope can be observed visually, so that the combined nephroscope isenabled to accurately reach a calculous position in a kidney without going too shallow or too deep. Massive hemorrhage caused by damage to blood vessels of a patient is avoided completely, perforation is avoided, suffering of the patient is relieved, bodily damage to the patient is reduced, and the combined nephroscope is short in operative time, leads to little hemorrhage, small wound and quickrecovery of the patient and can be widely used in various kidney stone operations.

The invention discloses a snake venom prothrombin activator and a snake venom prothrombin activator-based fast hemostatic material. The snake venom prothrombin activator with coagulating activity is extracted by adopting a column chromatography; accurate separation is achieved through changing chromatographic conditions and adjusting technical parameters; and an operation can be carried out at room temperature, so that the requirements for experimental conditions are simple and production is easy to amplify. A selected chromatography column can be repeatedly used, so that the snake venom prothrombin activator has the advantages of low cost, high yield and high product purity. The snake venom prothrombin activator-based fast hemostatic material disclosed by the invention can maintain maximum activity and stability of the snake venom prothrombin activator, is safe and free of toxic and side effects, can rapidly stop bleeding, can prevent secondary bleeding and infection, can be applied to accident emergency, surgical hemostasis and hemostasis of wartime traumas, is especially suitable for arterial haemorrhage, can rapidly stop bleeding and does not generate a secondary trauma.

The invention discloses a tape-free superior and inferior vena cava blocking clip. While a cannula is inserted in the superior and inferior vena cava, the first handle section and the second handle section are pressed, so the first arc section and the second semi-arc section are opened, and a blood vessel is sent between the first arc section and the second semi-arc section through the first bluntend part and the second blunt end part, so the blood vessel can be clamped and blocked, and the blood vessel is prevented from being injured by a first connecting handle and a second connecting handle through the first blunt end part and the second blunt end part. The first arc section and the second semi-arc section are butted to form a circular cavity for blocking the blood vessel. A tape stepcan be avoided, and risks, such as massive haemorrhage, in an operation are reduced. According to the space size of the blood vessel position, the lengths of the first blunt end part and the second blunt end part are adjusted, and soft tissues are prevented from being injured.

The invention discloses a rapid hemostat suitable for war wound massive hemorrhage, and relates to the technical field of medical instruments; the rapid hemostat comprises an injection mechanism and ahemostatic material, wherein the injection mechanism comprises an injection cylinder, a piston, an injection cylinder front cover and a percussion assembly; the hemostatic material is composed of barium sulfate powder with a diameter of less than 2 [mu] m, chitosan particles with a high deacetylation degree (greater than 90%) and a diameter of 2 mm, and prothrombin powder. The chitosan particlesin the hemostatic material rapidly expand to press a bleeding point, prothrombin is combined to promote fibrinogen to be converted into fibrin solidified blood to achieve the purpose of rapid hemostasis; and the chitosan particles are filled with barium sulfate powder which can be developed under X-ray radiography, so that identification and thorough taking of rear hospitals are facilitated. The rapid hemostat has the advantages of being simple, safe, economical and practical, is suitable for bleeding which is not prone to compression control and is caused by trauma of a body joint area and ajunction area and damage to large blood vessels, and is exact in hemostasis effect and high in hemostasis speed.

The wound dressing for first aid is one support matter made of biocompatible synthetic material and sprayed with additive containing calcium ion, animal thrombase, aminocaproic acid, antibiotic resisting secondary infection, analgetic, and fibrous primordial cell growth factor or epithelial cell growth factor. The present invention controls hemorrhage through activating bodyí»s blood coagulation mechanism and inhibiting fibrin dissolution, and can inhibit massive haemorrhage of both artery and vein effectively in short time. The present invention has no any foreign human protein and thus has no hematogenic virus contamination and excellent safety.

The invention relates to a portable rapid haemostatic device for massive haemorrhage in a bullet injury trajectory. The portable rapid haemostatic device comprises a haemostatic filler made of a material expandable after water absorption and blood absorption, a locating piece and a protective bag, wherein one end of the protective bag is arranged in an open mode, and the non-closed end of the protective bag is fixedly connected to the locating piece; a protective cavity is formed in the inner space of the protective bag; the part of the locating piece, located in the protective cavity, is provided with a neck and equipped with a through hole having two ends communicated with the external space and the protective cavity correspondingly; and the haemostatic filler is arranged in the protective cavity, and the front end of the haemostatic filler is detachably connected in the neck.