13 results about "Massive haemorrhage" patented technology

The invention discloses a machine learning-based intra-operative bleeding risk prediction method and device for spinal surgery. The machine learning-based intraoperative bleeding risk prediction method for spinal surgery comprises the following steps: acquiring information of a patient to be predicted; obtaining a trained hemorrhage risk prediction model; and inputting the information of the patient to be predicted into the trained massive hemorrhage risk prediction model so as to obtain a prediction result. According to the method, the high-precision prediction model is trained through large-scale patient data (including basic information, operation parameters, blood indexes and the like), so that the accuracy and the stability of intraoperative SBL risk prediction are improved. And a Cell Saver use suggestion based on a risk threshold is provided, and blood resource allocation is optimized. Clinical decision-making efficiency is improved through an automatic tool, blood transfusion related complications (such as infection and immune response) are reduced, and patient prognosis is improved.

The invention discloses an instant plugging agent as well as a preparation method and application thereof, and belongs to the technical field of biological materials. The instant plugging agent comprises a solution A and a solution B, wherein the solution A is an organic solution containing lipoic acid; the solution B is an aqueous solution containing metal ions. The preparation method comprises the following steps: dissolving lipoic acid in an organic solvent to prepare a solution A; dissolving salt of metal ions in water to prepare a solution B; the application refers to the application in preparation of products for stopping bleeding of human bodies or animal bodies and / or sealing tissue defects. The plugging agent has the characteristic of instant curing, and can tolerate bursting pressure exceeding 450 mm Hg; the device is not only suitable for general wound errhysis, but also can effectively deal with acute hemorrhage and emergency plugging of tissue defects in high-pressure and high-flow-rate states.

The invention belongs to the technical field of wartime emergency hemostasis and resuscitation, and provides a massive hemorrhage first-aid compression hemostasis and resuscitation integrated device suitable for a field operation environment. The pressurization hemostasis device comprises a pressurization tourniquet and a compression tourniquet, wherein the pressurization tourniquet comprises a main band, a pressurization silica gel air bag and a main pressurization air bag; the fastening assemblies are arranged on the pressurizing tourniquet, are located at the two ends of the pressurizing tourniquet and are used for fastening the pressurizing tourniquet; the pressurizing assembly is arranged on the pressurizing tourniquet and is communicated with the main pressurizing air bag on the main band; the pressurizing assembly comprises a pressurizing barrel, a connecting air pipe and a pushing cylinder plug; and the pushing cylinder plug is slidably mounted on the pressurizing barrel. The resuscitation integrated device comprises two electrode plates which are arranged on a main belt and located on the back face of a pressurizing silica gel air bag, and a pressure silica gel air bag arranged on the back face of the pressurizing silica gel air bag, one end of the power supply connector is electrically connected with the pole piece, and the other end of the power supply connector is electrically connected with an external power supply.

The present application belongs to the technical field of pressure infusion, and particularly relates to a novel multifunctional treatment vehicle. The novel multifunctional treatment vehicle comprises a vehicle body, an infusion assembly, a data processing unit and a collection box. The infusion assembly comprises an infusion pump and an infusion tube. The infusion pump is arranged on the vehicle body in a shock-absorbing manner. One end of the infusion tube is arranged on the infusion pump, and the other end of the infusion tube is connected with a vein by puncturing the skin. A vibration sensor is attached to the outer wall of the infusion tube and electrically connected with the data processing module. In this way, vibration information of the infusion tube is collected and fed back to the data processing unit. The data processing unit controls the operating parameters of the infusion pump based on the vibration information. By changing the infusion pressure of the infusion pump in real time based on the vibration data collected from the infusion tube and the static pressure difference data, the vibration and static pressure difference factors in the transfer process are solved, and the high-density transmission efficiency and stability of infusion for emergency massive hemorrhage or shock patients are improved.

The invention discloses a pH-responsive onion-stripped drug delivery hydrogel and a preparation method and application thereof, and belongs to the technical field of high polymer materials. A dynamic covalent network is formed through a Schiff base reaction of an aldehyde-containing polymer and methacrylated gelatin, doxorubicin hydrochloride is carried, acrylamide is introduced, and the pH-responsive onion-stripped drug delivery hydrogel is prepared. The pH-responsive onion-stripped type drug delivery hydrogel is prepared by adopting a photocuring mode and directly acts on a focus part. The hydrogel disclosed by the invention has a loose and porous network structure and excellent adhesiveness, and can be attached to a postoperative bleeding part, absorb wound exudate and prevent postoperative massive hemorrhage. The hydrogel disclosed by the invention has pH responsiveness and slow biodegradation characteristics, can respond to a tumor subacid environment, so that a medicine is released layer by layer like an onion stripping mode, slow and lasting release of the medicine is realized at local parts of focuses, and the hydrogel can be used as a novel medicine delivery carrier and is used for inhibiting postoperative recurrence of different cancers such as prostatic cancer.

This invention belongs to the fields of biomedical materials, flexible electronic devices, and trauma emergency treatment technology, specifically relating to a wireless closed-loop thermal hemostasis system, its preparation method, and its application. This invention utilizes dopamine-modified chitosan to prepare a porous chitosan gel, and introduces a conductive phase into the gel to prepare a composite conductive cryogel. This composite conductive cryogel is connected to a flexible circuit, a temperature sensing array, a flexible heating unit, and a wireless PCB control module to prepare a wireless closed-loop thermal hemostasis system. When used in traumatic massive hemorrhage, the cryogel exhibits a volume-dependent resistance change after absorbing blood. The system utilizes this resistance change to achieve real-time monitoring of the bleeding, hemostasis, and rebleeding processes. The flexible heating unit is controlled via temperature array feedback to rapidly raise the local temperature of the wound within a safe range to the procoagulant zone, thereby achieving automatically triggered and terminated thermal-assisted hemostasis.

The application discloses a single soldier first-aid nursing bag, and belongs to the technical field of single soldier carrying medical equipment, which comprises a bag body, three physically isolated compartments are arranged on the bag body, the three physically isolated compartments comprise a main compartment module area, a front compartment quick storage area and a side compartment protection area, the main compartment module area is arranged in the bag body, a flip cover capable of being fully unfolded by 180 DEG is arranged on the top of the main compartment module area, the front compartment quick storage area is arranged on the front side of the bag body and is used for storing hemostatic articles, and the side compartment protection area is arranged on the right side of the bag body and is used for storing joint protection and soft tissue contusion treatment articles. The application converts storage into treatment process through three-level partition and color coding, improves the treatment time efficiency during massive hemorrhage treatment, realizes instant conversion of three carrying modes, namely, waist sealing, chest hanging and diagonal carrying, fills the blank of joint protection through the vertical and narrow long structure of the side compartment, realizes physical isolation, and solves the problem that the articles cannot be taken in the dark and CBRN environment through the blind operation touch system constructed by the large pull ring, special-shaped texture and convex point identification.

The application discloses a surgical equipment applied to bronchoscope surgery, which comprises a transversely arranged operating table plate, a tilting component and a lifting component arranged in sequence below the operating table plate and used for tilting the operating table plate, and a bronchoscope surgery auxiliary component arranged on one side of the operating table plate; an arc-shaped through hole is formed in a first arc plate, a second arc plate is slidably arranged in the through hole, both ends of the second arc plate extend out of the through hole, and the both ends of the second arc plate are connected with the lower side of the operating table plate respectively, the tilting component further comprises a moving assembly used for driving the second arc plate to slide in the through hole, and the lifting component is arranged on the side of the first arc plate away from the operating table plate; a drainage assembly comprises a catheter used for extending into a human trachea and a guiding assembly used for supporting and fixing the catheter, and an expansion assembly is arranged on the outer wall of one end of the catheter and used for abutting against the inner wall of the human trachea. Through the mutual cooperation of the above-mentioned structures, the blood can be prevented from flowing into the lung to cause asphyxia when massive hemorrhage occurs in the bronchus.

The invention discloses an adjustable intraperitoneal compression hemostasis device, and belongs to the technical field of medical instruments. The compression piece is made of an elastic material, deforms after being stretched and can rebound after being stopped being stretched; an expansion mechanism capable of adjusting the size of a compression area at the front end of the compression part is arranged in the compression part; a handheld handle is arranged at the tail end of the compression part. The compression area of the front end of the compression part can be switched between the full size and the half size. When a large hemorrhage area is faced, the eight supporting pieces can be synchronously diffused to the periphery of the supporting column through adjustment, the compression piece made of the elastic material is expanded to the maximum size, and it is ensured that the compression area completely covers the hemorrhage part. When a small hemorrhagic spot is handled, four supporting pieces can be contracted and moved to the rear side of the other set of four supporting pieces, the pressing piece is supported only through the four supporting pieces, the pressing area is reduced to half of the maximum state, and the situation that due to the fact that the pressing range is too large, normal surrounding tissue is squeezed is avoided.

The invention discloses a rapid hemostasis powder material for massive hemorrhage, which comprises a component A and a component B. The component A is dialdehyde oxidized starch, the component B is any one of carboxymethyl chitosan or phenylboronic acid grafted carboxymethyl chitosan, and the mass ratio of the component A to the component B is 2: 1-1: 6. The invention further provides a preparation method and application of the rapid hemostasis powder material for massive hemorrhage. According to the invention, the dialdehyde oxidation modified starch and carboxymethyl chitosan or carboxymethyl chitosan grafted with phenylboronic acid are subjected to covalent cross-linking to obtain the novel biological hemostatic material for massive hemorrhage. According to the rapid hemostasis powder material for massive hemorrhage, the liquid absorption rate of the hemostasis powder can be increased, the blood coagulation cascade reaction is promoted, and then hemostasis is promoted.

The present application belongs to the technical field of computer aided system, especially relates to a rule engine visual configuration system of an anesthesia operation auxiliary system, a dynamic analysis unit can simulate extreme scenes such as intraoperative massive hemorrhage and anaphylactic shock, verify whether the rule causes instruction shock or physiological index sudden change, a closed-loop simulation verification module tests the rule response in a safe environment, discovers potential problems in advance, a two-dimension intelligent prediction module predicts the change trend of core physiological parameters through a core physiological parameter change trend prediction formula in step S1, quantifies rule execution deviation by combining a fitting degree evaluation formula in step S2, and an intelligent optimization unit automatically optimizes rule condition thresholds and action parameters with the minimum deviation as the target, the system changes traditional intraoperative passive treatment into preoperative active prevention, can effectively reduce human errors related to anesthesia rule configuration, can reduce rule trigger false alarm rate, and can significantly improve the safety and reliability of the anesthesia operation auxiliary system.

The invention provides a hemostatic hydrogel for wound hemorrhage. The hemostatic hydrogel is prepared from the following components in parts by mass: 15 to 18 parts of cationic cassava starch, 9 to 15 parts of polyvinyl alcohol, 5 to 8 parts of oxidized konjac glucomannan, 0.1 to 0.2 part of cannabidiol, 1.5 to 2.5 parts of polydopamine nanoparticles, 0.5 to 0.8 part of panax notoginseng saponins and 2 to 4 parts of polyethylene glycol diacrylate. The hydrogel has the advantages of being rapid in gelling and high in blood coagulation efficiency, is suitable for scenes with massive hemorrhage of wounds, such as acute wound surfaces of accidental incisions, scratches and the like, and environments with limited medical resources, such as fields, battlefields, severe accident and disaster sites, can be used as a first-line first-aid material, rapidly realizes hemostasis and infection resistance, relieves pain of the wounded, and has a good application prospect. The injury condition is stabilized.

The utility model belongs to the field of surgical instruments, and particularly relates to a heart lifting device which comprises a flexible pipe. The end part of the flexible pipe is fixedly connected with a bag body made of an expandable soft material; a three-way valve is fixedly connected to one end, far away from the bag body, of the flexible pipe; one end of the three-way valve is fixedly connected with a drainage pipe; an injector is detachably mounted at the other end of the three-way valve; by arranging the bag body, the flexible pipe, the three-way valve, the drainage pipe and the injector, warm saline water or ice saline water is injected into the bag body through the injector during use, so that the bag body is expanded, by means of the arrangement, good supporting force can be guaranteed, and corresponding adjustment can be conveniently conducted according to the size of the chest, the placing position and the height needing to be lifted; meanwhile, the heart is soft, the problem that hemodynamics is affected due to heart compression is reduced while the heart is lifted, and the possibility that heart beating is affected and pericardial vessels are damaged to cause massive hemorrhage due to heart compression deformation caused by traditional filling gauze or pericardium lifting is reduced.