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42 results about "Pressure pain" patented technology
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System of dampening pressure pulsations caused by a positive displacement pump in endoscopic surgery
ActiveUS7678070B2Minimizing amplitudeMinimize frequencyMedical syringesSuction devicesEndoscopic ProcedureContinuous flow
A system for distending body tissue cavities of subjects by continuous flow irrigation during endoscopic procedures, the system including: a fluid source reservoir containing a non viscous physiologic fluid meant for cavity distension; a fluid supply conduit tube connecting the fluid source reservoir to an inlet port of a variable speed positive displacement inflow pump and an outlet port of the said inflow pump being connectable to an inflow port of an endoscope instrument through an inflow tube for pumping the fluid at a controlled flow rate into the cavity, the flow rate of the said inflow pump being termed as the inflow rate; an inflow pressure transducer being located anywhere in the inflow tube between the outlet port of the inflow pump and the inflow port of the endoscope; an outflow port of the endoscope being connectable to a waste fluid collecting container via a waste fluid carrying tube, and characterized in that an active inflow pressure pulsation dampening means is connected to the inflow tube for dampening the pressure pulsations inside the cavity created by the positive displacement inflow pump.
Owner:KUMAR BV
Triaxial seepage stress temperature creep coupling experimental device based on digital image
InactiveCN104849194APrecise creep deformationReduce manpower consumptionPermeability/surface area analysisAxial compressorAxial pressure
The invention discloses a triaxial seepage stress temperature creep coupling experimental device based on a digital image. The triaxial seepage stress temperature creep coupling experimental device comprises a triaxial pressure chamber (1), a digital image observing system and a triaxial pressure chamber heating system, wherein a pore pressure applying system, a stable-pressure axial applying system and a surrounding pressure applying system are mounted on the triaxial pressure chamber (1); the pore pressure applying system comprises a pore pressure fluid injection tube (5), one end of the pore pressure fluid injection tube is connected with a first pressure pump (8); the first pressure pump (8) is used for providing pore pressure energy, the pressure value is measured by a digital pressure meter (9), and the pressure meter (9) is mounted on the pore pressure fluid injection tube (5). The triaxial seepage stress temperature creep coupling experimental device can be used for accurately and automatically measuring creep deformation by searching the influences of the surrounding pressure, the axial pressure, the hole pressure, the temperature and the creep deformation on coal permeability.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Preparation method of rhizoma polygonati
The invention provides a preparation method of rhizoma polygonati. The preparation method comprises the following steps: (1) taking a rhizoma polygonati raw medicinal material, adding black bean juice, stirring uniformly, and performing covered moistening until the medicinal material is completely fermented; (2) taking the medicinal material after covered moistening in the step (1), performing high-pressure steaming for 1-3 times and 1-6 hours a time, wherein the temperature of the high-pressure steaming is 110-130 DEG C and the pressure is 0.048-0.172Mpa; and (3) after steaming, taking out the medicine, and drying to obtain a prepared product. The rhizoma polygonati prepared by the method provided by the invention is equivalent to even better than the rhizoma polygonati prepared by a conventional nine-steaming and nine-preparation process; meanwhile, the preparation process is simple, the production time can be shortened, human and material resources can be saved, clinical needs can be met, the conventional preparation process is inherited and promoted, and the preparation method provided by the invention has a good industrial application prospect.
Owner:雅安迅康药业有限公司
Low turbulence fluid management system for endoscopic procedures
ActiveUS8591464B2Safe and efficient and turbulence free systemMedical devicesEndoscopesPeristaltic pumpEndoscopic Procedure
A system and a method for distending a body tissue cavity of a subject by continuous flow irrigation by using two positive displacement pumps, such as peristaltic pumps, one pump on the inflow side and another pump on the outflow side, such that the amplitude of the pressure pulsations created by the positive displacement pumps inside the tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method of reducing the frequency of the said pressure pulsations. The present invention also provides a method for accurately determining the rate of fluid loss, into the subject's body system, during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors.
Owner:KUMAR BV
Pure silver device and method for diagnosing and treating pain in the human body
InactiveUS20120143081A1Releasing the pressure pain pointsMore powerDevices for locating reflex pointsDevices for pressing relfex pointsSide effectSterling silver
Disclosed herein are a pure silver device and a method for diagnosing and treating pain on human body. The pure silver device comprises an elongated handle, a head having both a hammer head and a comb opposed to each other, a panel, and an outwardly extending protrusion on the bottom end of the handle. The pure silver device is used to diagnose and treat pain by finding out pressure pain points on both abdominal area, at which root of pain is located, and a symptomatic area of the human body and then by releasing the pressure pain points by tapping, pressing, rubbing, combing or combining the foregoing. Owing to the highest thermal and electrical conductivity of silver, the pure silver device produces amazingly better stimulation of the pressure pain points. Therefore, the pure silver device is more effectively used for diagnosing and treating pain than other devices made out of any other material, even sterling silver and magnetic material. In addition, the pure silver device is portable and useful in that anyone can diagnose and treat himself or herself anytime and anyplace. The pure silver device and the method are simple, easy, safe without any side effects and medical risks, and economical.
Owner:LYU HYUNG WOO
Constant-temperature heating method suitable for CT (computerized tomography) scanning rock core displacement experiments and capable of stimulating oil reservoir conditions
ActiveCN103592320AWill not affect the scanning effectSolve technical problems in high temperature and high pressure conditionsMaterial analysis by transmitting radiationRock coreComputed tomography
The invention provides a constant-temperature heating method suitable for CT (computerized tomography) scanning rock core displacement experiments and capable of stimulating oil reservoir conditions, which comprises the following steps: a confining pressure liquid is heated in a constant-temperature heating unit to a preset temperature and injected into a confining pressure space of a rock core holder at constant speed, and flows out through an outlet of the confining pressure space; the confining pressure of the rock core holder is controlled to a preset pressure by using a back-pressure valve; after being heated by the constant-temperature heating unit, the confining pressure liquid flowing out through the outlet of the confining pressure space and the confining pressure liquid entering an inlet of the confining pressure space form a cycle; the confining pressure liquid in the confining pressure space enables the rock core to reach the preset temperature and keep the temperature constant; and the constant-temperature heating unit is positioned outside the rock core, outside the rock core holder and outside the CT scanning area. The method achieves the effect constant-temperature heating and constant confining pressure without influencing the CT scanning, is used for CT scanning rock core tests, and solves the technical problem of providing high-temperature high-pressure conditions in CT scanning rock core displacement experiments.
Owner:PETROCHINA CO LTD
Multi-stage filleted high-pressure anvil
InactiveCN102527296AReduce investmentEasy to operateUltra-high pressure processesSuperhard materialStress concentration
The invention discloses a multi-stage filleted high-pressure anvil and relates to exploration of synthesizing preparation tools for novel superhard materials such as diamond, cubic boron nitride and products thereof, and novel materials which cannot be prepared at normal pressure, and belongs to the technical field of ultra-high pressure. The top of the multi-stage filleted high-pressure anvil has a multi-stage platform structure with fillets; the bottom of the multi-stage filleted high-pressure anvil is a column with fillets; the transition between the top and the bottom is realized by a symmetrical curved surface or a fan-shaped bevel; and the high-pressure anvil is made of steel, hard alloy, a diamond sintered body, a cubic boron nitride sintered body or natural diamond and other high-hardness materials. The defects of structural design of corners and a first-stage platform of the conventional anvil are overcome; the stress concentration effect of the anvil can be reduced; the service life of the anvil can be prolonged; the cavity pressure of hundreds of thousands to millions of atmosphere pressures can be obtained; and the multi-stage filleted high-pressure anvil can be widely applied to an anvil device, a multi-surface ejecting high-pressure device and a multi-stage boosting device, and can meet research requirements of high-pressure physics and high-pressure biology on a matter system at high temperature and high pressure.
Owner:JILIN UNIV
Human body pressure pain point simulation device
The invention relates to a human body pressure pain point simulation device, which is a common pressure pain point positioning model used for western medical examination. The human body pressure pain point simulation device consists of a human body pressure pain point simulation man, a computer, a display and a voice unit, wherein accurate positions of human body common pressure pain points are distributed on the human body pressure pain point simulation man, pressure sensors are arranged on the human body pressure pain point simulation man, and a storage unit of the computer stores the operation software program of the device, the position distribution of the human body pressure pain points, information of diseases related to the common pressure pain points and evaluation mark information of answering the correctness of the information. The device can make learners correctly find the pressure pain points, can simultaneously give out relevant diseases, so the learners can find the pressure pain points on the human body pressure pain point simulation man, the correctness is prompted through voice and is displayed through a display screen, and and corresponding evaluation marks are given out.. The invention can become a novel teaching instrument of medical colleges and universities.
Owner:王立新
Safety valve self-check method, system and anesthesia machine
The present invention proposes a safety valve self-inspection method, system and anesthesia machine. The method includes the following steps of closing the gas outlet, opening the pressure sensor, and opening the intake valve; detecting the air pressure and recording the air pressure value P0; delaying for t seconds Finally, detect the air pressure value Pt; make a judgment, if Pt=P0, stop pressurizing, and record the final pressure value Pt. The invention enables the medical equipment of the respiratory system with the ventilation safety valve device to automatically detect the opening threshold of the safety valve before each use, is simple to operate and easy to implement, and simultaneously improves the safety of the medical equipment.
Owner:BEIJING AEONMED
Method for detecting filter clogging by using pressure information, apparatus for monitoring filter clogging and bed-side system
InactiveUS7632411B2Avoid clogging the filterSolvent extractionOther blood circulation devicesMonitor filterBlood inflow
A method is provided for detecting filter clogging which are able to keep track of the filter clogging with precision and in detail. At least one pressure selected from the group consisting of a pressure Pa in a blood inflow portion (32a), a pressure Pv in a blood outflow portion (32b), a pressure Pf1 in a filtrate inflow portion (32c), and a pressure Pf2 in a filtrate outflow portion (32d) is measured continuously, then a variation (pressure waveform) of the pressure is analyzed, a clogging of a filter (32) is detected using the analyzed result. Thereby a clogging of a filter is detected early. As a result, it is possible to prevent from developing of the filter clogging by controlling a dosage amount of anti-coagulant properly and changing a flow rate of blood. The variation of the pressure wave may be analyzed by subjecting the variable to Fast Fourier Transform.
Owner:KONINK PHILIPS ELECTRONICS NV
Bandage and method for vital bleaching of skin
InactiveUS20060121100A1Reduced colorationDiminish and eliminate discolorationBiocidePeroxide active ingredientsHuman skinMedicine
A bandage and method for vital bleaching of human skin discolored as a result of bruising (ecchymosis) provides transdermal delivery of hydrogen peroxide as a bleaching agent in gel or other form. The bandages provide delivery and application by waterproof and light-proof strips and pads carrying hydrogen peroxide in sufficient concentration for safe oxidation of bruised tissue with resultant eradication of visible discoloration, and amelioration of associated tenderness.
Owner:OPREMCAK E MITCHEL
Variable temperature and variable pressure probe for nuclear magnetic resonance detection, and nuclear magnetic resonance detection method
InactiveCN108267393AStrong high pressure resistanceMeet the needs of variable temperature detectionAnalysis using nuclear magnetic resonancePermeability/surface area analysisNMR - Nuclear magnetic resonanceTest sample
The invention discloses a variable temperature and variable pressure probe for nuclear magnetic resonance detection, and a nuclear magnetic resonance detection method. The probe comprises a nuclear magnetic resonance detection system, a confining pressure applying system, a displacement pressure applying system and a variable temperature system; and the probe can simultaneously or separately realize the nuclear magnetic resonance detection of a test sample under applied confining pressure, applied displacement and variable temperature conditions. The nuclear magnetic resonance detection methodincludes the following steps: installation of the test sample, connection of a nuclear magnetic detection circuit, connection of the confining pressure applying system, connection of the displacementpressure applying system, connection of the variable temperature system, and testing. The probe has the advantages of high pressure resistance, low manufacturing cost and flexibility in testing.
Owner:SOUTHEAST UNIV +1
Granular preparation for promoting blood circulation, dredging collaterals and relieving pain and preparation method as well as quality control method thereof
The invention discloses a granular preparation for promoting blood circulation, dredging collaterals and relieving pain, a preparation method of the granular preparation, and a quality control method of the Chinese traditional medicine. The granular preparation of the invention is prepared from pharmaceutical excipients and a Chinese traditional medicine composition prepared from the following raw materials in parts by weight: 160-240 parts of white peony root, 40-60 parts of kudzu root, 40-60 parts of peach kernel, 40-60 parts of safflower, 40-60 parts of mastic, 40-60 parts of myrrh, 55-95 parts of teasel root, 55-95 parts of cibot rhizome, 55-95 parts of lycopodium clavatum, 40-60 parts of achyranthes, 40-60 parts of rehmannia and 15-35 parts of licorice. The granular preparation of the invention has stable granulation process and high quality controllability. The clinical test shows that the clinical total effective rate of the granular preparation of the invention for treating cervical spondylosis is 98.88%, the total effective rate of the control medicine for treating cervical spondylosis is 97.10%, and the state of an illness and main symptoms are improved obviously after treating. The effective rate for treating sciatica is 75.3%, the effective rate for treating hyperosteogeny is 82.7%, the effective rate for treating headache and dizziness caused by cervical spondylosis is 87.6%, the effective rate for treating waist pain and limitation of motion is 91.4%, the effective rate for treating shoulder and neck tenderness is 92.5%, the effective rate for treating neck pain and limitation of motion is 96.2%, and the effective rate for treating acroanesthesia is 98.5%. The clinical treatment effect of the granular preparation of the invention applied after the operation of prolapse of lumbar intervertebral disc (PLID) is as follows: the recovery rate of the sample group of the invention is 86.7%, and the recovery rate of the control group is 61%.
Owner:BEIJING HANDIAN PHARMA CO LTD
Foot-bath traditional Chinese medicine composition with functions of relaxing tendons and activating collaterals as well as preparation method and application of foot-bath traditional Chinese medicine composition
InactiveCN107233420AIncrease joint mobilityDefinite curative effectAntipyreticAnalgesicsJoint arthralgiaNeck shoulder pain
The invention discloses foot-bath traditional Chinese medicine composition with functions of relaxing tendons and activating collaterals. The foot-bath traditional Chinese medicine composition is prepared from raw medicine materials in parts by weight as follows: 10-15 parts of whole herb of speranskia tuberculata, 10-19 parts of ramulus cinnamomi, 10-15 parts of ramulus mori, 10-15 parts of herba lycopodii, 10-17 parts of radix clematidis, 10-19 parts of radix angelicae sinensis, 8-15 parts of radix salvia miltiorrhizae, 8-15 parts of semen sinapis albae, 10-17 parts of liquidambar formosana Hance, 8-12 parts of folium artemisiae argyi, 5-10 parts of Sichuan pepper and 3-5 parts of herba asari. The foot-bath traditional Chinese medicine composition has obvious curative effect on degenerative arthritis with symptoms of wind-cold-dampness arthralgia, the total effective rate reaches 87.5%, and the composition has significant difference (P is smaller than 0.05) when compared with a control group; further, the improvement effect on pain, pressing pain, swelling and joint movement degree of a patient is obviously better than that of the control group. Besides, the foot-bath traditional Chinese medicine composition has unique curative effect on neck shoulder pain and lumbocrural pain.
Owner:SHENZHEN TRADITIONAL CHINESE MEDICINE HOSPITAL
External auditory canal silencing ear plugs
The invention relates to external auditory canal silencing ear plugs, which comprise sound reflecting plates, sound piezoelectric ceramic groups, acoustic resistance sheets and silencing bodies, wherein the silencing bodies in the silencing ear plugs have T-shaped structures and are fixed on ears by clamping external auditory canals, so that pressure pain is not caused even when the ear plugs are worn for a long time; small ventilation holes in the sound reflecting plates, metallization ventilation holes of the sound piezoelectric ceramic groups, ventilation holes on the acoustic resistance sheets and through holes on the silencing bodies are connected with one another to form a communicated bent channel, so that external auditory canals are communicated with the outside and do not become damp even when the ear plugs are worn for a long time; the sound piezoelectric ceramic groups refer to two sound piezoelectric ceramics with different resonant frequencies; and an anode and a cathode produced by the sound piezoelectric ceramics are connected with each other through the metallization ventilation holes, so that energy produced by sound waves can be well eliminated.
Owner:710TH RES INST OF CHINA SHIPBUILDING IND CORP
Brake system
ActiveUS20140084674A1Reducing periodic pressure pulsationReduce pulsationOperating means/releasing devices for valvesFluid braking transmissionReciprocating motionControl theory
Disclosed herein is a brake system capable of reducing periodic pressure pulsation generated by operation of a pump. The brake system includes a damper member provided with a cylinder having a step portion and a piston to reciprocate between the cylinder and the cap. The piston may be prevented from being excessively pushed toward one side of the damper member, and pressure pulsation generated by operation of the pump may be attenuated. Therefore, overall operating noise may be reduced during control the brake and product reliability may be increased.
Owner:HL MANDO CORP
Frequency conversion centrifugal pump optimal regulating method and system based on pressure pulsation
ActiveCN108266386AGuaranteed efficiencyGuaranteed lifePump componentsPump controlPhase correlationFrequency conversion
The invention relates to a frequency conversion centrifugal pump optimal regulating method and system based on pressure pulsation. The frequency conversion centrifugal pump optimal regulating method includes the following steps that S1, all pressure pulsation monitoring points of a frequency conversion centrifugal pump are subjected to data collection; S2, the variable required in phase position correlation analysis is calculated; and S3, the working condition of the frequency conversion centrifugal pump can be adjusted through phase position correlation analysis. According to the frequency conversion centrifugal pump optimal regulating method and system based on pressure pulsation, only a pressure pulsation sensor needs to be arranged on the inlet section or the outlet section of the pump, instable flow with rotational components inside the pump can be judged easily on the premise of not damaging the pump, a guiding function is provided for optimal regulation of the frequency conversion pump, and power minimum is not used as the optimizing index of frequency conversion pump regulation any more. By adoption of the method, a guarantee can be provided for the efficiency and service life of the pump as well as safe and stable operation of the whole system.
Owner:CHANGZHOU ENGIPOWER TECH
Methods of enhancing fracturing stimulation in subterranean formations using in situ foam generation and pressure pulsing
InactiveUS20140083695A1Enhancing fracturing stimulationFluid removalPressure painEnvironmental geology
Methods of enhancing fracturing stimulation in subterranean formations using in situ foam generation and pressure pulsing including providing a jetting fluid comprising an aqueous base fluid; providing a fracturing fluid comprising an aqueous base fluid, a gelling agent, a proppant agent, a gas generating chemical, and a gas activator; introducing the jetting fluid into a subterranean formation to create or enhance at least one fracture therein; introducing the fracturing fluid into the at least one fracture; applying intermittent pressure pulsing to the fracturing fluid to extend the at least one fracture.
Owner:HALLIBURTON ENERGY SERVICES INC
Method of acquiring pressure pulsation of valve cavity of reciprocating type piston compressor
ActiveCN108331744ASave time and costHigh precisionPump testingPositive displacement pump componentsExhaust valveKinematics equations
The invention belongs to the field of compressors and discloses a method of acquiring pressure pulsation of a valve cavity of a reciprocating type piston compressor. The method comprises the followingsteps: establishing an ordinary differential equation set by means of a compressor working process equation, a valve block kinematic equation and a valve cavity pressure pulsation equation; and solving the equation set to acquire a time-dependent numerical solution of the pressures of suction and exhaust valve cavities. A mathematical model of the compressor working process is established on a theoretical basis of an energy conservation law and a mass conservation law of a variable mass thermodynamic system and an ideal gas state equation and a volumetric equation, so that the time and the test cost can be saved; by comprehensively considering the compressor working process, the motion law of an air valve and mutual effect between pressure pulsation in the suction and exhaust valve cavities and a pipe system, the valve cavity pressure pulsation acquiring method is higher in precision and is closer to the actual condition. In addition, the analytical method for acquiring the valve cavity pressure pulsation can carry out optimized analysis on compressor parameters, valve block parameters, valve cavity parameters and pipeline parameters to control the lowest pressure pulsation.
Owner:HUAZHONG UNIV OF SCI & TECH
3D pulse electro-therapeutic apparatus circuit
InactiveCN103432686ARelieve muscle tensionTo promote metabolismArtificial respirationHuman bodyMassage
Owner:艾德军
Pitot tube device for measuring pressure pulsation of hypersonic wind tunnel
ActiveCN110044578ASolve technical problems with large errorsImprove accuracyAerodynamic testingAcoustic waveMechanics
The invention discloses a pitot tube device for measuring pressure pulsation of a hypersonic wind tunnel, belonging to the field of fluid mechanics. The pitot tube device comprises a main body and a sensor, wherein the sensor is positioned in the hollow inner cavity of the main body, the main body is made of a porous metal material; the porous material is provided with micropore gaps, and can partially absorb disturbance waves such as sound waves, vortex waves and entropy waves without damaging a flow field structure. When the pitot tube device is used for measuring the pressure pulsation of the hypersonic wind tunnel, the main body made of the porous metal material absorbs the flow field disturbance and weakens the reflection oscillation of the flow field disturbance between a shock surface and the front end surface of the pitot tube device, and further improves the accuracy of the hypersonic wind tunnel pressure pulsation measurement. Therefore, the technical problem that when the pitot tube in the prior art is used for measuring the pressure pulsation of the hypersonic wind tunnel, a relatively large error exists is solved.
Owner:HUAZHONG UNIV OF SCI & TECH
Brake system
ActiveUS9139184B2Reduce pulsationOperating means/releasing devices for valvesFluid braking transmissionReciprocating motionControl theory
Owner:HL MANDO CORP
Determination method of horizontal hydraulic load at rotary wheel of water turbine-generator set
InactiveCN100582705CEasy to measureHydrodynamic testingApparatus for force/torque/work measurementWater turbineEngineering
A method for measuring transverse hydraulic load at a runner of a hydro-generating unit relates to the method for determining the transverse hydraulic load at the runner by obtaining pressure pulsation in a tail pipe and displacement of a shaft neck at a water pilot bearing through experiments. The method comprises the following steps: a. a displacement signal of the shaft neck at the water pilot bearing, a pressure pulsation signal of the tail pipe and the frequency response feature of a shaft system of the hydro-generating unit are obtained through the experiments; b. amplitudes, frequencies and phases of main components of the pressure pulsation are obtained by analyzing the signal; c. the form of the transverse hydraulic load is assumed, and the frequency response feature is utilized to determine the flexibility coefficient of the shaft system under the action of the load; d. and the transverse hydraulic load is determined according to the maximum value of the displacement amplitude and the flexibility coefficient caused by the transverse hydraulic load. The method decomposes the transverse hydraulic load to the components with the different frequencies for superposition and measures the phase; furthermore, the pressure pulsation is the centralized reflection of the coupling action of various incentives in the tail pipe, and the obtained transverse hydraulic load is closer to the actual situation.
Owner:TSINGHUA UNIV
Personalized tourniquet apparatus
Disclosed is a method and apparatus for regulating tourniquet cuff pressure based on a personalized tourniquet pressure (PTP) to facilitate safe performance of a surgical procedure. The apparatus includes a dual-purpose tourniquet cuff adapted to encircle a region of a patient limb to provide both a sensor during a pre-surgical time period and an effector during a surgical time period. An effector module communicates pneumatically with an inflatable bladder of the cuff for maintaining pressure in the bladder near a PTP during the surgical time period to safely stop penetration of arterial blood past the cuff. A pulsation sensor that communicates pneumatically with the inflatable bladder during the pre-surgical time period senses and characterizes pressure pulsations that are indicative of penetration of arterial blood into the region of the limb encircled by the cuff. A PTP estimator is responsive to the pulsation sensor for producing an estimate of the PTP, such that the estimate of the PTP is a function of the sensed pulsations.
Owner:WESTERN CLINICAL ENG
Pressurized rollover prevention device for sharp turning or tire burst of automobile
InactiveCN105882348AGuaranteed stabilityIncrease flexibilityInterconnection systemsResilient suspensionsRolloverCenter shift
The invention discloses a pressurized rollover prevention device for sharp turning or tire burst of an automobile. The pressurized rollover prevention device is characterized in that a carriage is in bolt connection with a pressure plate of a pressurized rollover prevention chassis; when an automobile is turning a corner, the gravitational center shifts, and both sides of the automobile suffer different pressures; the side with excessive pressure pushes a fluid inside a pressure regulating device to the side with smaller pressure, so as to balance the pressures on both sides of the automobile; in case of sharp turning, sharp turning due to emergency of encountering a barrier or an accident, or a tire burst during high-speed driving, the side with excessive pressure will be quickly adjusted by the pressure regulating device, the fluid inside the pressure regulating device will flow to the place with smaller pressure. The pressurized rollover prevention device has an excellent flexibility and can ensure the driving stability of the automobile to the greatest extent in case of sharp turning, sharp turning due to emergency of encountering a barrier or an accident, or a tire burst during high-speed driving.
Owner:CHANGCHUN UNIV OF TECH
Trigger point treatment method, system, and device for neuromusculoskeletal pain
ActiveUS11317854B1Increase pressureUltrasound therapyDevices for locating reflex pointsPhysical medicine and rehabilitationMassage therapies
A trigger point treatment system for treating a patient, includes a cart, including a display; a trigger point scanning device with a scanning probe, and a trigger point massage therapy device, including a pressure point tip, a pressure sensor component, and an actual pressure indicator. A method of trigger point treatment includes scanning for myofascial trigger points, including locating, mapping, and marking trigger points; measuring a pressure pain threshold; applying a massage treatment; and optionally applying an injection treatment.
Owner:PSOAS MASSAGE THERAPY OFFICES P C
Low drop-out transmission valve sealing control method and low drop-out transmission valve
ActiveCN105043078AExtended service lifeReduce design requirementsDrying gas arrangementsDrying machines with progressive movementsEngineeringForce sensor
The invention discloses a low drop-out transmission valve sealing control method and a low drop-out transmission valve. According to the method, a transmission valve arranged between two adjacent working boxes and used for enabling the working boxes to be connected or disconnected is arranged, a first pressure sensor used for measuring first pressure P1 is arranged in the first working box, a second pressure sensor used for measuring second pressure P2 is arranged in the second working box, a third pressure sensor used for measuring third pressure P0 is arranged in the transmission valve, and a control device is arranged for controlling the state of the third pressure P0 according to the state of the first pressure P1 and the second pressure P2; when P0 is larger than the maximum value (please see the formula in the specification) of P1 and P2, the third pressure P0 is kept unchanged, and a motor is shut off. By the adoption of the low drop-out transmission valve sealing control method and the low drop-out transmission valve, the motor can be protected, and the service life of the motor can be prolonged; meanwhile, the requirement for design of a sealing door opening and closing mechanism can be lowered, and cost can be reduced.
Owner:SHENZHEN XINYUREN TECH
Device and method for standardized tracing of parts of pain and pressing pain of knee joints
ActiveCN111466880AFit tightlyConvenient for later researchDiagnostic recording/measuringSensorsPainful jointsKnee Joint
The invention relates to a device and method for standardized tracing of parts of pain and pressing pain of knee joints. The device includes a knee joint model, a transparent model shell and a round sticker, wherein the knee joint model has appearance and size similar to the appearance and size of a real human knee joint, the transparent model shell is of a hollow structure with certain elasticity, and has appearance the same as the appearance of the knee joint model, and the inner wall of the transparent model shell conforms to the outer wall of the knee joint model; and meshed divisional grids are arranged on the surface of the transparent model shell, each of the divisional grids is marked with a unique number, and the transparent model shell penetrates the surface of the knee joint model through a hollow structure. The device has the advantages that positions, distribution ranges and distribution rules of ending pressing pain of the knee joints of patients with knee arthritis can be described and recorded in a standardized mode, later study and treatment plan making can be carried out by the medical staff conveniently, and the curative effect is ensured.
Owner:SHUGUANG HOSPITAL AFFILIATED WITH SHANGHAI UNIV OF T C M
Vortex flowmeter including pressure pulsation amplitude analysis
A configuration tool is for a vortex flowmeter having a flowtube, a bluff body positioned in the flowtube for shedding vortices in the fluid, and a pressure sensor configured to obtain a signal indicative of a time-varying fluid pressure having an oscillation associated with the vortices. The configuration tool includes a processor that determines a type of fluid flowing through the flowtube based on the amplitude of the oscillation. The processor sets a fluid-type setting of the vortex meter to match the determined type of fluid. An alarming system for a control system including such a flowmeter includes a processor that assesses a density of a fluid flowing through the flowtube based on the amplitude and compares the assessed density to a fluid density configuration setting. The processor activates an alarm if the difference between the assessed density and the fluid density configuration setting exceeds a threshold.
Owner:INVENSYS SYST INC
Knee joint correction auxiliary device
The invention discloses a knee joint correction auxiliary device which comprises a bandage capable of covering the knee joint and a pressurizing bag for providing pressure for the knee joint. A positioning hole capable of exposing the patella of the knee joint is formed in the center of the bandage, and connecting bands used for fixing the bandage are connected to the two sides of the bandage; thepressurizing bag is connected to the outer surface of the bandage and filled with a filler. The knee joint flexion rehabilitation device has a good effect in rehabilitation treatment of knee joint flexion deformity; by using the device provided by the invention, the patellar femoral joint pressure in the treatment process can be effectively reduced; the pressing pain of the anterior knee area ofthe patient during pressurization is reduced; a patient can adjust the pressurization pressure by increasing or decreasing the number of the pressurization bags, the treatment effect and use comfort of the patient are guaranteed, additional injuries caused by too large pressure are avoided, the patient can recover as soon as possible, meanwhile, the device can guarantee the continuous pressurization correction effect, and secondary injuries such as pressure sores can be effectively avoided.
Owner:XIANGYA HOSPITAL CENT SOUTH UNIV
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