523 results about "Blood circulating" patented technology

The invention belongs to the technical field of biological medicines, and particularly discloses a nano-engineering T cell membrane coated nano-particle as well as a preparation method and application of the nano-engineering T cell membrane coated nano-particle. Nanoparticles of a specific structure are constructed based on a phospholipid bilayer bionic nanometer platform through a membrane fusion technology, immune clearance caused by phagocytosis of the nanoparticles by macrophages can be avoided through disguise of a T cell membrane, and the blood circulation time is prolonged; the functions of T cells are recovered through specific blocking of immune checkpoint molecules loaded on the immune checkpoint molecules on corresponding immune checkpoint ligands on tumor cells; under ultrasonic radiation, the nano-particles are gradually decomposed and release the sound-sensitive agent to generate a large amount of active oxygen, so that immunogenic death of tumor cells is promoted, more cytotoxic T lymphocytes are recruited to infiltrate into tumor parts, and the recovery of T cell mediated immune response function is facilitated. The synergistic effect of the sound-sensitive agent and the immune checkpoint protein can effectively inhibit tumor growth, induce a long-term immune memory effect and prevent tumor metastasis and recurrence.

The treatment system includes a limb sleeve containing a heating subsystem, a pressure subsystem, and a vibration subsystem. The heating subsystem provides controlled cyclic heating to the limb, leading to dilation of the microvasculature and improved blood flow to nerve receptors. The pressure subsystem provides progressively staged, cyclic pressure to the limb, thereby improving blood circulation to the limb, reducing edema buildup, and flushing waste out the lymphatic system. The vibration subsystem provides controlled vibrotactile sensation to the limb to promote neuronal stimulation and decrease pain sensation. The treatment system allows for a multi-faceted approach in disease stabilization and assistive, personalized treatment for peripheral neuropathy.

The invention provides a stepped ventricle auxiliary circulating pump device, relates to the technical field of heart blood pumps, and provides a structure that a heart blood pump is arranged in a heart chamber and below an aortic valve or a pulmonary valve, and a stepped motor and an axial flow channel are designed on the basis, so that a blood flow channel is formed between the motor and the axial flow channel; the blocking influence of the size of the motor above the aortic valve or the pulmonary valve on the blood circulation process can be effectively avoided, and the amount of blood pumped out of the aortic valve or the pulmonary valve is effectively increased.

The invention belongs to the technical field of orthopaedic orthopaedics, and particularly discloses a reduction and fixation orthopaedic orthopaedic device for orthopaedics, the upper side and the lower side of a positioning part are slidably connected with sliding rods, the side, close to the sliding rods, of the positioning part is fixedly connected with an adjusting part, and the positioning part comprises two positioning frames. According to the reduction and fixation orthopedic equipment for the orthopedics department, the positioning component is arranged, and a cooling mechanism is arranged in the middle of the inner side of the positioning frame, so that ice compress detumescence can be directly carried out on a bruise position, local swelling and pain caused by fracture or correction operation of a patient are relieved in time, local blood circulation is promoted, and favorable conditions are created for bone healing; when the positioning frame is worn for a long time, the contact mechanism can massage and relieve the corresponding part of the patient, muscle stiffness and discomfort caused by long-time fixation are relieved, the wearing comfort of the patient is improved, and the patient can better cooperate with treatment.

Disclosed is a system and processor-implemented method of estimating one or more vital signs of a user based on a video of the user by using artificial intelligence, comprising extracting a plurality of face frames and one or more time stamps from the video of the user; determining at least one region of interest (ROI) in the plurality of face frames using a histogram of oriented gradients (HOG); extracting a plurality of health indicator signals by detecting volumetric changes in a peripheral blood circulation in the at least one ROI based on a remote photoplethysmography (RPPG); and estimating the one or more vital signs of the user based on the plurality of health indicator signals and the one or more time stamps.

The utility model discloses a blood extracorporeal circulation device, which belongs to the technical field of blood extracorporeal circulation equipment and comprises an inner tube and an outer tube, the inner tube and the outer tube are integrally nested, one end of the outer tube is connected with an air inlet tube, the air inlet tube is communicated with oxygen inlet equipment, and the other end of the outer tube is connected with an air outlet tube. A temperature changer and a flow speed controller are connected between one end, far away from the air outlet end, of the outer pipe and the oxygen inlet equipment; one end of the inner tube is a liquid inlet end for transporting blood, the other end of a blood inlet of the inner tube is a liquid outlet end, and the liquid outlet end is connected with a temperature sensor, an oxygen saturation sensor, a blood pump and a microembolus filter; the part, in the outer pipe, of the inner pipe is made of a gas exchange membrane material, and the liquid inlet end of the inner pipe is opposite to the gas inlet pipe of the outer pipe. The blood temperature rising process is safer, meanwhile, in the blood temperature rising process, the oxygen saturation index in the blood can be directly adjusted, the blood oxygen value is simple, convenient and controllable on the basis of convenient temperature rising, temperature control and oxygen saturation of in-vitro blood circulation are carried out at the same time, and operation is easy and safe.

A medical training model includes a base frame, a fluid system arranged on the frame and configured to simulate a blood circulation replacement system, and at least one additively manufactured individualized vessel model with a patient-specific replicated lumen. The vessel model may be interchangeably connectable to the fluid system by at least one hydraulic quick coupling having coupling pieces such as a plug and a sleeve or bushing. Each coupling piece may contain an inner flow channel, and at least one coupling piece is designed as an adapter with a diameter-changing flow channel course that transitions from the patient-specific lumen to a standardized coupling connection opening. The flow channel course may include a conical region providing a smooth, edgeless transition between differing diameters, with the conical region formed as a hollow shaft truncated cone for flat bearing and sealing when the coupling pieces are locked together.

A blood circulation system for an extracorporeal blood treatment machine includes: an arterial circulation section; a venous circulation section; a dynamic bubble trap; and an air separator. The blood circulation system conducts blood, during the operation of a blood pump of the extracorporeal blood treatment machine, from a patient to a dialysis unit and from the dialysis unit to the patient. The blood circulation system also includes a recirculation or branch line connected to the bubble trap in order to return part of the blood that flows into the bubble trap into the blood circulation system, upstream of the bubble trap. An extracorporeal blood treatment machine includes the blood circulation system.

An ex vivo test system 10 is constituted of a fluid circuit that circulates a prescribed circulation liquid by simulating the blood circulation state of a human body, and comprises a circulation liquid maintenance unit 17 that maintains, in the same manner as the blood environment in vivo, chemical factors in the circulation liquid, which affect the performance evaluation of a test object S. The circulation liquid maintenance unit 17 comprises: a replenishing liquid unit 23 that maintains the chloride ion concentration and protein concentration of the circulation liquid at desired values by injecting a replenishing liquid composed of an electrolyte-free isotonic solution into the fluid circuit; and a carbon dioxide supply unit 24 that maintains the pH of the circulation liquid at a desired value by supplying carbon dioxide into the fluid circuit, the state of the circulation liquid being maintained while compensating for the effect of moisture loss during circulation of the circulation liquid.

The invention belongs to the technical field of medical detection equipment, and particularly relates to a household portable blood sugar and uric acid two-in-one human body detection device which comprises a detector shell. A display screen and a detector body are installed on the top and one side of the inner wall of the detector shell respectively, test paper is connected to one side wall of the detector body, a blood sampling pen is connected to one side wall of the detector shell in a magnetic adsorption mode, and an auxiliary assembly used for promoting blood circulation of the hand is further embedded in the inner wall of the detector shell. After the blood sampling pen is magnetically separated from the detector shell, one end of the blood sampling pen punctures the finger of a detected person, so that the detected person conveniently drips blood generated by the punctured finger onto the test paper, and after the test paper is in contact with the detector body, the blood of the detected person is analyzed; the analyzed blood glucose value and uric acid value of the detected person are displayed through the display screen, and the purpose of blood glucose and uric acid two-in-one detection is achieved.

An oxygenation device for use with extracorporeal blood circulation is disclosed. The device includes an oxygenator housing having a blood inlet end cap having a blood inlet opening, a blood outlet end cap having a blood outlet opening, and a gas collector housing between the blood inlet opening and the blood outlet opening. The gas collector housing defines a gas compartment having a gas inlet chamber with a gas inlet port and a gas outlet chamber with a gas outlet port. Heating devices are disposed against the gas collector housing and include a first heating device in the gas inlet chamber and a second heating device in the gas outlet chamber. During operation of the oxygenation device, the heating devices heat the gas compartment.

The present invention discloses an auxiliary support device for patients with lower limb thrombosis, which relates to the technical field of medical rehabilitation equipment, including lower limb sleeves and foot sleeves, wherein two lower limb sleeves and two foot sleeves are provided, and a sanitary isolation replacement component for keeping the auxiliary lower limb clean is installed on the lower limb sleeve, and a blowing activity auxiliary component for heat dissipation and auxiliary joint movement is installed on the outer surface of the lower limb sleeve. The auxiliary support device for patients with lower limb thrombosis replaces the isolation cotton roll under the action of the rotation and reeling of the reeling shaft, thereby ensuring that the patient's lower limb sleeve remains in a better clean state when the patient uses it next time, avoiding bacterial infection after the patient wears the unsanitary lower limb sleeve, and exercising the patient's foot joints by reminding the patient's feet to perform an upward lifting action. Lifting the feet upward can exercise the calf muscles, including the gastrocnemius muscle and the tibialis anterior muscle, and can also help promote blood circulation in the lower limbs, which helps to reduce lower limb edema and prevent the risk of thrombosis.

The invention provides an intermittent inflating and pressurizing device with a heat preservation function, belongs to the technical field of medical apparatuses and instruments, and aims to solve the technical problem that lower limb vein thrombosis is easy to occur due to the fact that blood is in the states of high coagulation, slow temperature loss and the like due to long-time operation braking, anesthetic use and the like of gastrointestinal tract operation patients. Comprising a host shell; the pressurizing sleeve is located outside the main machine shell, air bags are arrayed on the pressurizing sleeve, all the air bags are provided with a common outlet end pipe and a common inlet end pipe, and the air bags have different bulging degrees along with changes of pressure in the pipes; and the pumping mechanism is located in the main machine shell, the outlet end pipe and the inlet end pipe are both connected with the pumping mechanism, the pumping mechanism can drive fluid to circularly flow between the outlet end pipe and the inlet end pipe, and the pumping mechanism can adjust the pressure and temperature of the fluid in the circulating pipeline. The method has the technical effects of remarkably accelerating the postoperative blood circulation recovery process of a patient and effectively preventing lower limb vein thrombosis.

The invention discloses a coronary artery hemodynamic information prediction method, device and equipment, a medium and a product, and relates to the field of biomechanics, and the method comprises the steps: obtaining clinical data, and segmenting the clinical data to obtain a coronary artery three-dimensional model and a heart three-dimensional model; constructing a human body blood circulation system lumped parameter model; determining a personalized human body blood circulation system lumped parameter model of the patient after assignment; constructing a 0-3-dimensional myocardial mechanical coupling model; constructing a first database; obtaining personalized systolic function parameters and diastolic function parameters of the patient based on the first mapping network; constructing a blood vessel 0-3-dimensional coupling model; constructing a second database; obtaining personalized coronary flow field information of the patient based on a second mapping network; the personalized coronary flow field information comprises a pressure field, a velocity field and concentration polarization characteristics of low-density lipoprotein on a blood vessel wall surface. Through network architecture innovation, the bottleneck of the model in the aspects of efficiency and personalization is solved, and the diagnosis precision of the coronary heart disease is improved.

The application provides a conduit pump outlet structure and an auxiliary blood circulation device. The conduit pump outlet structure comprises a diffuser arranged in an outlet frame, the outlet frame comprising a fixing ring and at least two struts, the diffuser comprising a hub and at least two guide vanes connected to the hub, the number of the guide vanes being consistent with the number of the struts, the profile edge of the guide vanes comprising a root surface and a tip surface, the root surface being the connecting surface of the guide vanes and the hub, and the tip surface being the outer surface away from the hub; the struts have the same outer profile as the tip surface of the guide vanes; when the diffuser is arranged in the outlet frame, the guide vanes and the struts are arranged one by one, so that the tip surface and the inner wall of the struts are arranged in close contact. By using the application, the resistance of blood output is reduced, and the blood pumping efficiency is improved.

A hemodiafiltration (HDF) system for performing a hemodiafiltration (HDF) treatment is provided. The HDF system includes a mixing system for mixing nitric oxide (NO) and other chemicals to produce a dialysis fluid. The HDF system further includes an extracorporeal blood circulation circuit including a filter capable of separating the dialysis fluid into a dialysate and a NO-containing replacement fluid. The extracorporeal blood circulation circuit further comprises a dialyzer capable of receiving the dialysate from the filter and a blood line connected to the dialyzer, the blood line comprising an access point connected to the filter for administering the NO-containing replacement fluid to a patient during HDF therapy.

The utility model provides an insole with a magnetic therapy massage function, which belongs to the technical field of health care products and comprises an insole component, a bottom pad, a separator arranged at the top of the bottom pad and an insole surface integrally formed with the outer surface of the bottom pad. The massage assembly comprises a first massage convex block fixedly mounted on the outer surface of the insole surface, and a second massage convex block, a third massage convex block, a fourth massage convex block and a fifth massage convex block which are sequentially and fixedly mounted towards the front foot sole part through the first massage convex block. According to the utility model, the six groups of massage bumps are distributed according to the acupuncture points of the sole and are matched with the outline and radian of the sole, and the massage particles distributed on the outer surface can accurately stimulate the acupuncture points, so that the blood circulation of the foot is effectively promoted, the swelling and aching pain of the foot caused by long-time walking or standing are relieved, and more serious foot diseases are prevented; magnetic therapy sheets can be embedded to achieve magnetic therapy stimulation, promote qi and blood circulation of meridians and collaterals and maintain overall health of the body.

According to the pulsating anti-load pants and the simplified air bag heart assisting device, by adding the anti-load clothes and the pulsating and blood pumping functions of the anti-load pants, the standing anti-load pants during cruising are changed into pulsating pressurizing pants with time control air valve pulsating type inflation and deflation or left and right air bags alternately inflated and deflated; the thick and long blood vessels of the lower limbs and the one-way valves on the inner walls of the thick and long blood vessels of the lower limbs are extruded to pump blood to become a second external heart; a simplified air bag heart assisting device is a pulsating anti-load pants reduced configuration scheme, outer-layer clothes and pants of anti-load pants are removed, and the simplified air bag heart assisting device is simplified into a crus air bag or a thigh and crus communicated air bag sewed nylon fastener tape device, and left and right leg air bag air conveying rubber pipes are connected with two electromagnetic three-way valves respectively and then are combined through rubber pipes to be connected with an air pump. Two-way power-on and power-off of a time relay are used for controlling left and right electromagnetic valves or improved valves to be connected with air bags, an air pump and an external tee joint, so that left and right leg air bags are inflated and deflated in turn; the invention can be used as heart-aiding anti-load trousers and heart-aiding fitness equipment, and can improve the blood circulation of the human body.

PURPOSE: To provide a production apparatus and a production method of water mixed with a carbonic acid fine bubble that enable addition of a carbonic acid fine bubble generation effect to be easily performed even for a using shower head as it is, can finely divide a fine bubble, and thereby, further improve blood circulation promoting effect, cleaning effect or the like.CONSTITUTION: A production apparatus of water mixed with a carbonic acid fine bubble has a configuration in which a bath agent storage part is connected to a part between a hose and a shower head, a carbonic acid bath agent can be stored in the bath agent storage part by an open and close mechanism of a lid body while maintaining connection with both the shower head and the hose, at least a part of the bath agent storage part is formed by a transparent member, and the stored carbonic acid bath agent is visible from outside.SELECTED DRAWING: Figure 1

The invention relates to medical methods, and more particularly to saving a person's life in the case of tongue fall-back. The aim of the invention is to create a life-saving method for use in the case of tongue fall-back, which does not involve using force or opening the victim's mouth to return the tongue to the oral cavity and restore tone thereto, but uses the method described by K.G. Bekmammedov in inventor's certificate No. 12733 and uses "big pump" and "little pump" exercises to improve blood circulation, wherein the victim drinks 1 glass of water during said exercises.

This utility model discloses a convenient wearable stroke rehabilitation belt, relating to the field of rehabilitation fixation technology. It includes a lifting plate, with a rehabilitation fixation belt snapped onto the top surface of the lifting plate. A limiting component is installed on the top surface of the lifting plate, restricting the position of the rehabilitation fixation belt. Multiple sets of heat therapy patches are provided on the inner side of the rehabilitation fixation belt. In use, the easy assembly and disassembly of the rehabilitation fixation belt and the lifting plate facilitates daily use by patients to assist in rehabilitation. Simultaneously, the synergistic effect of the electrical stimulation patches and the heat therapy patches provides thermal therapy and nerve electrical stimulation to the lumbar muscles, improving blood circulation and enhancing rehabilitation outcomes.

The utility model discloses a postpartum automatic massage bellyband device which comprises a main body unit, the main body unit comprises a back strap and a bellyband, an elastic band is fixed on one side of the back strap, the side, away from the back strap, of the elastic band is fixed with the bellyband, a connecting band is fixed on the side, away from the elastic band, of the back strap, and a fixing piece used for fixing the back strap and the bellyband is arranged in the connecting band. Due to the fact that the elastic band is elastic and the first loop face can be pasted to different positions of the first hook face, the bellyband can be fixed to the bodies of patients with different body types, the second loop face and the second hook face are separated by pulling the annular cloth, and then the annular cloth and the storage bag can be moved. The medicine bag in the storage bag can cover wounds at different positions of a patient, in addition, an instruction is sent to the air pump through the controller, the air bag can be circularly inflated and deflated, the massage function is achieved, blood circulation of the patient can be promoted, and rehabilitation of the patient is facilitated.

The present application relates to the technical field of blood monitoring, in particular to a vascular health assessment and intelligent nursing system for hemodialysis patients. The degree of venous reflux obstruction is determined based on the change trend and degree of venous pressure data within each dialysis period, and the degree of inconsistency between the change trends of venous pressure data and transmembrane pressure data. The degree of arterial supply obstruction is determined based on the change trend and degree of arterial pressure data within each dialysis period. The suspected internal fistula obstruction period is determined based on the change trend of the degree of venous reflux obstruction and the degree of arterial supply obstruction. The nursing intervention prompting degree of the patient to be tested is determined based on the relationship between the blood flow data and arterial pressure data of each dialysis stage of the patient to be tested within the suspected internal fistula obstruction period, and the blood flow data of the non-dialysis stage. The internal fistula nursing scheme is determined. The present application realizes early warning of internal fistula dysfunction based on the change of venous and arterial pressure of the blood circulation loop during dialysis.

The invention discloses a portable hot compress medicine carrying device for treating temporomandibular arthropathy, which comprises a main body part provided with a placing cavity; the medicine carrying assembly is arranged in the placing cavity; the ear hook is connected to the side of the main body part so as to be hung on the ear, so that the medicine carrying assembly faces the temporomandibular joint; the medicine carrying assembly comprises a medicine box, a sponge layer and a graphene heating layer, the sponge layer is arranged between the medicine box and the graphene heating layer, and liquid medicine in the medicine box is conveyed to the graphene heating layer arranged towards the temporomandibular joint through the sponge layer; the graphene heating layer is electrified to emit far infrared waves, so that blood circulation of the temporomandibular joint area is promoted through heat radiation, and percutaneous release of liquid medicine is enhanced. According to the medicine carrying device, through heat radiation of the graphene heating layer, local blood circulation of the temporomandibular joint is improved, skin permeability is improved, and medicine penetrates through the skin to enter subcutaneous tissue or muscular tissue.

This invention relates to the field of medical data mining technology, specifically to a system for assessing eye muscle fatigue in myasthenia gravis based on infrared thermal imaging. First, the degree of blood circulation impairment is determined based on the temperature changes of pixels in various directions within a speckled region. Then, based on the number of speckled regions and the concentration of hot spots, a speckled region influence value reflecting local blood circulation and metabolic abnormalities is determined. Next, combining the degree of blood circulation impairment, the speckled region influence value, and the speckled region distribution, a comprehensive reference degree of eye muscle fatigue is determined. Furthermore, considering the distribution of speckled regions under the influence of grease, the degree of blood circulation impairment, and the characteristic that the reference degree of eye muscle fatigue typically does not change, a corresponding grease influence value is determined. Thus, combining the reference degree of eye muscle fatigue and the grease influence value allows for a more accurate determination of the eye muscle fatigue assessment value, resulting in better assessment of eye muscle fatigue in myasthenia gravis based on this value.

The invention relates to the field of bone joint reduction, particularly discloses an orthosis for bone joint reduction and fixation, and solves the problems that an existing bone joint fixation orthosis, particularly a knee joint fixation orthosis, is single in function and is not beneficial to joint rehabilitation and later exercise recovery of a patient. The device comprises a base, a limiting box, an opening, a sliding frame, a clamping base, a fixing clamping plate, an adjusting assembly, a rotating shaft, an upper protection plate, a side plate, a sliding frame, a pressing base, a first rotating plate, a sliding base, a cam and a driving assembly, the outer side of the limiting box is slidably connected with a pulley, and a linkage assembly is arranged in the limiting box and used for driving the pulley to slide on the outer side of the limiting box. According to the device, the knee joint of a patient can be stably limited, fixed and corrected, the legs of the patient cannot be tightly clamped, blood circulation of the legs of the patient is facilitated, meanwhile, auxiliary pressing massage can be further carried out, muscles of the patient can be stimulated to keep vitality, and the follow-up rehabilitation exercise period is shortened.

The utility model relates to a compression hemostasis device after radial artery paracentesis, which comprises a C-shaped arm, one end of the C-shaped arm is provided with a mounting column, the mounting column penetrates through the C-shaped arm, the end part of the mounting column is provided with a pressure plate, the mounting column is provided with an adjusting mechanism, and the adjusting mechanism is used for driving the pressure plate to adjust along the length direction of the mounting column so as to provide compression force. According to the compression hemostasis device, the compression force can be provided for the punctured position of the wrist of a patient through the clamping effect provided by the pressing disc and the end portion of the side, away from the installation column, of the C-shaped arm, then the hemostasis effect is achieved, and compared with a traditional hemostasis mode that a binding belt is used for tightening, the compression hemostasis device is in a two-point clamping mode and is convenient to use. The whole wrist cannot be excessively tightened, blood circulation of the wrist cannot be affected, the phenomenon of local swelling pain is avoided, the comfort of a patient is improved, meanwhile, the position of the pressing disc can be finely adjusted according to a specific puncture point, so that the pressing disc can be aligned to the puncture point, effective pressing force is provided, and the universality is high.

The utility model relates to an adult simulation load device for online calibration of an extracorporeal membrane oxygenation system. The system comprises a left ventricular artery system simulation box, a right atrial vein system simulation box, a resistance device, a V-A ECMO treatment mode artery perfusion cannula, a V-V ECMO treatment mode vein perfusion cannula, a vein drainage cannula, a bottom plate, a right atrial vein system simulation box hydraulic monitoring sensor, a left ventricular artery system simulation box hydraulic monitoring sensor and a manual pressure release valve. And a ball valve pressurizing device and a vertical partition plate. The left ventricular artery system simulation box, the resistance device and the right atrial vein system simulation box are sequentially connected through pipelines. The device is simple in structure, convenient and practical to operate and capable of accurately simulating the blood volume of a patient, the pressure difference between a venous system and an arterial system and the resistance of a blood circulation system when an adult patient adopts a V-A ECMO treatment mode and a V-V ECMO treatment mode respectively, and has practical value; calibration data has clinical guiding significance, the measurement accuracy of key parameters of equipment is effectively guaranteed, and clinical risks are reduced.

The utility model discloses a pre-dilation balloon assembly capable of preventing thrombus from falling, which belongs to the technical field of pre-dilation balloons and comprises an outer sleeve, and a first channel is arranged in the outer sleeve. The guide pipe is movably arranged in the first channel, and a second channel is arranged in the guide pipe; the inflating balloon is arranged at the front end of the catheter; the number of the filter screens is two, and the inflatable balloon is arranged between the two filter screens; when the first filter screen and the second filter screen move out of the outer sleeve, the first filter screen and the second filter screen can be unfolded in the radial direction. According to the pre-expanding balloon assembly designed by the utility model, the two filter screens are suitable for capturing fallen plaques or thrombus when the inflating balloon expands a blood vessel, and the plaques or thrombus are prevented from entering blood circulation to block other parts of the blood vessel, so that the phenomenon of no re-flow after an operation is avoided.