243 results about "Oxygen uptake" patented technology

The embodiment of the invention provides a maximum oxygen uptake evaluation method and system. The maximum oxygen uptake evaluation method comprises the steps that physiological information of a user is obtained; based on a heart rate sensor assembly and an inertial sensor assembly, motion information and heart rate information of the user in the test motion execution period are collected; calculating the metabolic equivalent weight of the user based on the physiological information, the motion information and the heart rate information; and calculating and determining the maximum oxygen uptake of the user based on the metabolic equivalent and the heart rate information. The maximum oxygen uptake evaluation method provided by the invention is used for quickly and accurately evaluating and determining the maximum oxygen uptake of the user.

The invention discloses a maximum oxygen uptake estimation method and system and an estimation interaction system, and the estimation method comprises the steps: obtaining heart rate data, power data and / or speed data from a historical motion data sequence of a motion user, and forming a fit file; based on the fit file, extracting the maximum average power and / or the maximum average speed and the average heart rate corresponding to the maximum average power and / or the maximum average speed; acquiring real-time oxygen uptake in the corresponding motion mode based on a preset model, the maximum average speed and / or the maximum average power in different motion modes; acquiring a heart rate correction coefficient based on the maximum heart rate, the average heart rate and the resting heart rate of the exercise user; and estimating the maximum oxygen uptake in different exercise modes based on the height, weight and heart rate correction coefficient of the exercise user and the real-time oxygen uptake in different exercise modes. According to the method, the maximum oxygen uptake of the exercise user can be reliably and accurately obtained by using the historical exercise data.

The invention relates to the technical field of regression prediction modules, and discloses an oxygen generator remote control method and system based on data analysis. The method comprises the following steps: acquiring historical operation data of the oxygen generator, real-time operation data of the oxygen generator and patient data; according to the patient data, performing oxygen uptake prediction based on a pre-trained linear regression model to obtain predicted oxygen uptake; according to the historical operation data of the oxygenerator and the real-time operation data of the oxygenerator, calculating the oxygen production amount to obtain the oxygen production amount of the oxygenerator; comparing the predicted oxygen uptake amount with the oxygen production amount of the oxygen generator, and performing efficiency calculation to obtain operation efficiency evaluation parameters; and comparing the operation efficiency evaluation parameter with a preset threshold value, and generating an adjustment instruction, so that the oxygen generator performs adjustment according to the adjustment instruction. According to the method, the efficiency of the oxygen generator can be improved under the condition that the requirements of the patient are met.

The invention discloses a method for researching the influence of lower limb movement on the blood sugar of a type II diabetes patient, and relates to the technical field of medical health. Comprising the following steps: S1, screening research objects: selecting patients diagnosed as T2DM; s2, CPET evaluation: performing CPET on the patient by using a professional cardiopulmonary exercise test system, and measuring cardiopulmonary function indexes of the patient, including anaerobic threshold and maximum oxygen uptake; individualized exercise intensity is formulated according to the data; s3, diet control: ensuring that the patient takes standardized breakfast before testing so as to reduce the influence of food intake on blood sugar fluctuation. According to the method, the patient is assessed in detail through the cardiopulmonary exercise test, the oxygen-free threshold, the maximum oxygen uptake and other key indexes are obtained, and the exercise intensity and mode meeting individual requirements can be formulated; according to blood glucose data and cardiopulmonary function indexes monitored in real time, the exercise scheme is dynamically adjusted, and reliability and safety are improved.

The invention belongs to the technical field of oxygenerators, discloses a scroll compressor-oxygenerator air volume combined self-adaptive regulation control device and method, and aims to solve the problem that unused oxygen can be throttled and can also directly flow back through an air inlet of a scroll compressor to be recycled in the next step when the oxygen generation amount of an oxygenerator is greater than the oxygen uptake amount. The mode can effectively utilize the surplus gas amount, reduce the energy consumption and improve the gas utilization rate in the oxygen generation system. Due to the fact that the indicated power consumption of the compressor is in direct proportion to the actual oxygen production flow, the scroll compressor-oxygen generator air volume combined adjusting system can save energy consumption to the maximum extent. The scroll compressor is different from a conventional piston type compressor, the compression process is continuously carried out, the gas transmission amount of the scroll compressor can be changed by adopting a variable rotating speed adjusting method, and the scroll compressor is suitable for occasions where the rotating speed changes in a wide range and is low in maintenance cost.

The invention discloses an air purifier with breathing and oxygen generation functions, and relates to the technical field of air purification equipment. The placing box is arranged on the other side of the upper surface of the moving plate, and an oxygen generator is arranged on the middle side in the placing box; the filter box is arranged in the placement box; the connecting mechanism is arranged on the supporting plate, the connecting mechanism is connected with the connecting box, a mounting plate is fixed to one side wall of the connecting box, a liquid medicine box and a storage box are arranged on the mounting plate, and the liquid medicine box is communicated with the connecting box through a conveying pipe; the lower end of the vertical pipe of the oxygen pipe is connected with the air outlet end of the oxygen generator through a connecting pipe; the respirator is communicated with the connecting box through a telescopic pipe; a protective cover sleeves and is fixed on the pipeline at the air inlet end of the sucking pump, the protective cover abuts against the top wall of the filter box, and a filter element is embedded in the protective cover; the exhaust mechanism is arranged on the upper side in the placing box; in the air purification process, the corresponding oxygen uptake operation can be selected according to requirements, and the occupied space is reduced while the purchase cost is not increased.

The invention relates to the field of intelligent auxiliary rehabilitation, in particular to a virtual reality-based respiratory rehabilitation system, which comprises a data capture module, a dynamic training monitoring module and an early warning and response module. A data extraction unit is used for acquiring a user respiration examination result and a rehabilitation training category, an environment acquisition unit is used for acquiring training field information, various respiration indexes, heart rate and motion state parameter data of a user in dynamic training are acquired, and an energy supply category is identified; and further calculating the oxygen uptake in unit time and the real-time oxygen uptake ratio, judging the training intensity grade by combining with an individualized evaluation model, and providing feedback through real-time broadcasting. If it is recognized that the training intensity is abnormal or safety risks exist, an early warning mechanism is started, voice and image prompting is achieved, and the user is assisted in adjusting the training state. The system obviously improves the scientificity, safety and individuation level of rehabilitation training, and is suitable for various scenes such as medical treatment, rehabilitation and home training.

The invention relates to the technical field of wearable intelligent equipment, and further relates to an exercise training plan generation method and system and wearable intelligent equipment. The method comprises the following steps: when a user is not in a motion state, determining a first maximum heart rate and a first maximum oxygen uptake of the user based on a support vector regression model and basic information of the user; when the user is in the motion state, photoelectric volume pulse wave signals generated by the user in the motion process are processed through a deep learning model, and a plurality of basic index sequences are obtained; determining a second maximum heart rate and a second maximum oxygen uptake of the user based on the plurality of basic index sequences, the basic information, the maximum heart rate and a maximum oxygen uptake prediction model; and generating an exercise training plan of the user based on the first maximum heart rate and the first maximum oxygen uptake, or generating an exercise training plan of the user based on the second maximum heart rate and the second maximum oxygen uptake. The method reduces the generation cost of the exercise training plan.

The invention discloses an insulated high-voltage-resistant flame-retardant 10kV power cable, and relates to the technical field of power cables, a plurality of heat insulation protection sheets are arranged at the side ends of dense power transmission line cores, an elastic resistance sheath is mounted at the outer side ends of the heat insulation protection sheets, and a plurality of material storage thermosetting cavities are formed in the inner side of the elastic resistance sheath at equal intervals; according to the invention, through internal sealing press fit and oxygen uptake dehydration treatment, stable isolation of the battery cell is realized, the problem of internal short circuit or fire caused by discharging of the battery cell is reduced, and the reliability of the battery cell is improved. And through mutual cooperation of double-layer active flame-retardant fire extinguishing and double-layer passive flame-retardant arranged outside, the time for the cable to become a combustible material during combustion is slowed down, so that the flame spreading speed is slowed down, the fire extinguishing time is prolonged, the direct loss of the cable can be reduced when a fire breaks out, and the flame-retardant and internal insulation flame-retardant protection effects are improved.

The invention discloses a research method for completing upper limb cardiopulmonary exercise tests at different power increasing rates, and relates to the technical field of cardiopulmonary exercise tests. The method specifically comprises the following steps of 1, selecting participants of an upper limb cardiopulmonary exercise test; step 2, CPET quality control and standardized operation; the CPET carries out gas capacity calibration, high, medium and low flow rate calibration, air, oxygen and carbon dioxide gas calibration, metabolism simulator calibration and participant calibration through a Quark PFT Ergo type cardiopulmonary exercise test system, and then test is carried out; and step 3, performing CPET experiment grouping. The invention proves that the CPET of the upper limbs with different power increasing rates obviously changes the power, the movement duration, the oxygen uptake ventilation effectiveness, the carbon dioxide discharge ventilation effectiveness, the unit power oxygen uptake and other core indexes when the peak movement is obviously changed; and the method also has a certain degree of influence on the peak RER and the maximum RER in the recovery period.

The utility model relates to the technical field of medical instrument storage, in particular to an aerosol inhaler storage box. Comprising a box body and a sealing cover, an inner cavity of the box body is provided with a soaking disinfection chamber on the left side and a drying chamber on the right side, and limiting strips matched with the sealing cover for use are fixedly arranged on the upper portions of the inner walls of the soaking disinfection chamber and the drying chamber; a limiting device used in cooperation with the filtering basket is further arranged at the bottom of the sealing cover, vent holes are formed in the side wall of the drying chamber, and an air heater is further installed on the inner wall of the drying chamber. The atomization mask and the oxygen uptake tube can be conveniently placed and taken out, and meanwhile the atomization mask and the oxygen uptake tube can be soaked, washed, disinfected and dried.

The invention discloses a system and a device for measuring the cardiopulmonary endurance of an adult, and relates to the technical field of cardiopulmonary endurance measurement. The system comprises a power vehicle, a heart rate acquisition module, a data processing module, a motion control and voice guide module, a load regulation and control module, a result output and data management module, a safety monitoring and stopping module and a user interaction module, and the power vehicle comprises a positioning base, a supporting seat, a vehicle frame, a counting and power utilization mechanism and a measurement and power recovery mechanism. A stable and controllable physical exercise platform and an adjustable load system are provided, a heart rate collection module collects heart rate data of a subject in the resting and exercise process in real time, and the heart rate data serve as a VOmax estimation core basis. And data of more dimensions can be incorporated during formula calculation of the maximum oxygen uptake, so that the effect is better.

The invention discloses a ladle refining furnace and a method for reducing electrode consumption in the molten steel refining and smelting process, and belongs to the technical field of metallurgy. The ladle refining furnace comprises an electrode clamp and a gas blowing device arranged below the electrode clamp. According to the gas injection device of the ladle refining furnace, the gas wall is formed below the electrode to prevent the air from being in contact with the electrode, so that the electrode consumption in the molten steel refining and smelting process is reduced. Moreover, when the ladle refining furnace is used for refining and smelting the molten steel, the process is simple and easy to operate, the overall cost is remarkably reduced, and the ladle refining furnace is suitable for large-scale industrial production. In addition, the method solves the problems of high electrode consumption and short service life in the refining process caused by serious air oxidation after the electrode is electrified in the molten steel refining and smelting process, reduces the oxygen concentration on the surface of a steel ladle after refining and smelting, reduces the oxygen uptake in the slag forming process, and improves the molten steel quality.

The invention belongs to the field of packaging materials, and particularly relates to a barrier film with oxygen barrier and water vapor barrier effects, the barrier film comprises an oxygen barrier layer and an oxygen uptake layer which are arranged adjacently, and the oxygen uptake layer comprises an oxygen uptake agent and an oxygen barrier agent. The invention also relates to a packaging material. The barrier film can effectively block oxygen and water vapor.

The split type mask, the breath monitoring system and the using method of the breath monitoring system are provided, the split type mask is suitable for endoscopy, the split type mask comprises a nose mask body, a mouth mask body and a connecting piece, and the nose mask body and the mouth mask body are connected through the connecting piece. An oxygen uptake tube connector is formed in the nose cover body and used for being connected with an external oxygen supply device so as to supply oxygen into the nose cover body. An endoscopic examination opening is formed in the mouth cover body, and endoscopic examination instruments such as a gastroscope can pass through the endoscopic examination opening. The nasal mask body further comprises a nasal pressure sensor and a nasal aspirator connector which are respectively used for monitoring pressure in the nasal mask body and sucking aerosol in the nasal mask body, and / or the mouth mask body further comprises a mouth pressure sensor and a mouth aspirator connector which are respectively used for monitoring pressure in the nasal mask body and sucking aerosol in the nasal mask body. The nose mask body and the mouth mask body are respectively used for monitoring pressure in the mouth mask body and sucking aerosol in the mouth mask body, and the nose mask body and the mouth mask body are respectively attached to the face of a wearer and are not communicated with each other.

The invention relates to the technical field of oxygen uptake tubes, in particular to a PVC sterile oxygen uptake tube and an oxygen uptake tube adapter, the PVC sterile oxygen uptake tube comprises a PVC sterile inner tube, the outer side of the PVC sterile inner tube is sleeved with a PVC sterile outer tube, a PVC connecting strip is fixed between the PVC sterile inner tube and the PVC sterile outer tube, a metal wire is inserted into the surface of the PVC connecting strip, double faced adhesive tapes are arranged on the upper side and the lower side of the PVC sterile outer tube, and the PVC sterile outer tube and the PVC sterile outer tube are connected with the PVC connecting strip. Release paper is arranged on the surface of the double-faced adhesive tape, and a buckling groove and a clamping strip are arranged on the left side and the right side of the PVC sterile outer tube respectively; the beneficial effects are as follows: the PVC connecting strip not only realizes the connection effect on the PVC sterile inner tube and the PVC sterile outer tube, but also meets the buffering effect when the PVC sterile outer tube applies pressure to the PVC sterile inner tube, and is matched with the metal wire to realize the shaping effect on an anti-blocking oxygen delivery channel after the PVC sterile inner tube is bent; the PVC sterile outer pipe not only achieves the anti-scraping protection effect on the PVC sterile inner pipe, but also achieves the compression-resistant buffering effect on the PVC sterile inner pipe, and the PVC sterile inner pipe is bonded and fixed through the cooperation of the double-faced adhesive tape, so that the PVC sterile pipe is rich in function.

The invention discloses a method for indirectly evaluating cardiopulmonary endurance and energy metabolism and predicting exercise performance, and belongs to the technical field of exercise evaluation. The maximum oxygen uptake speed of the running machine and the maximum oxygen uptake of the running machine are obtained through testing of the running machine, and the evaluation value corresponding to the cardiopulmonary endurance is inquired through the maximum oxygen uptake of the running machine; the slow muscle proportion is obtained based on the maximum oxygen uptake speed of the treadmill, and the energy metabolism of the treadmill at any constant running speed is evaluated through the slow muscle proportion; and the oxygen-free threshold speed of the field can be obtained through the slow muscle proportion, so that the competition results of different competitions can be predicted. The treadmill is adopted for running, operation is easy, physical strength consumption is low, prediction is accurate, the method is suitable for requirements of different crowds, scientific reference basis is provided for a fitness scheme and assessment of the exercise fitness effect, and the exercise evaluation method is of great significance.

The invention discloses an oxygen uptake control device and method, and belongs to the technical field of medical instruments. According to the invention, through cooperative operation of the high-precision sensor and the computer system, accurate matching of oxygen uptake and billing is ensured; depending on the oxygen concentration real-time monitoring and automatic adjusting mechanism, the treatment effect is improved, and the operation threshold is lowered; when the oxygen concentration is abnormal, voice prompt is automatically triggered, and the misoperation risk is effectively prevented; a two-dimensional code identity binding technology is combined to realize'one-code communication ', and intelligent management of hospitals is assisted; meanwhile, accurate oxygen uptake data recording not only avoids billing dispute, but also provides reliable basis for diagnosis and treatment, and safety, convenience and management efficiency of oxygen uptake treatment are comprehensively improved.

The invention belongs to the technical field of first-aid equipment, and particularly relates to a first-aid platform with an oxygen uptake function, the first-aid platform comprises a main control module and an oxygen supply module, the oxygen supply module comprises a chemical oxygen generation unit, and a peroxide reaction cavity is arranged in the chemical oxygen generation unit; the oxygen supply module further comprises an adsorption oxygen storage unit; the master control module is provided with a standardized interface. In the invention, a chemical oxygen generation unit of a peroxide reaction cavity is arranged in the oxygen supply module, the dependence of a traditional molecular sieve on an external gas source and electric power is avoided, a rapid oxygen release reaction is triggered through an iron powder catalyst, the oxygen generation speed is higher than that of molecular sieve oxygen generation, and the first-aid golden time requirement can be met; meanwhile, in extreme scenes such as plateau and power failure, the oxygen production rate is automatically adjusted through an air pressure compensation valve, it is guaranteed that the oxygen flow is stably larger than or equal to five liters per minute when the altitude is 5000 m, and the oxygen production amount is attenuated in the low-pressure environment according to the patent; meanwhile, the peroxide reaction cavity is independently sealed, so that the risk of oxygen supply interruption caused by faults of a molecular sieve air compressor is avoided.

The invention relates to the technical field of medical oxygen inhalation treatment instruments, in particular to a hyperbaric oxygen chamber infant oxygen inhalation device which comprises a chamber and a chamber cover covering the chamber. A waste gas collecting pipe is arranged at the bottom in the cabin, the waste gas collecting pipe is annular, a plurality of collecting holes are formed in the waste gas collecting pipe, and gas separation membranes are arranged on the collecting holes; a gas one-way valve is further arranged on the cabin, and the gas one-way valve can allow external air to enter the cabin; the cabin is further communicated with an oxygen inlet pipe, and the oxygen inlet pipe is arranged at the position, close to the cabin cover, of the cabin. The oxygen and carbon dioxide gas exchange circulation efficiency in the cabin can be improved, it is guaranteed that the oxygen content is sufficient, the health of the respiratory system of a newborn is guaranteed, meanwhile, static electricity accumulation in the cabin can be reduced, and the safety and reliability of oxygen uptake treatment are improved; the device can also upload the physical sign data of the infant to a cloud medical health data platform, and the oxygen supply amount is optimized and adjusted through artificial intelligence analysis.

The utility model discloses an oropharynx breather tube provided with a braid and capable of fixing an oxygen uptake tube, which comprises a tube body and a stop protective enclosure arranged outside the front end of the tube body, and further comprises a head tying belt, the head tying belt is fixedly arranged on the stopping protective enclosure; the front end of the tube body extends forwards to be provided with a fixing ring which is located on the front portion of the blocking protection enclosure and used for fixing an oxygen inhalation tube, and an inserting hole which penetrates to the rear end face of the blocking protection enclosure and allows the oxygen inhalation tube to penetrate is formed in the front end face, close to the fixing ring, of the blocking protection enclosure. The medical oxygen inhalation tube has the advantages that after the head tying belt is fixed to the head of a patient at proper tightness, the tube body inserted into the oral cavity of the patient is not prone to slipping, so that the medical oxygen inhalation tube is good in fixing stability and use reliability, and when oxygen needs to be supplied to the patient through the oral cavity, the used oxygen inhalation tube is inserted into the oral cavity of the patient by a certain depth through the insertion hole; according to the oxygen uptake tube fixing device, the fixing ring is arranged on the oxygen uptake tube, and then the medical proof fabric is wound outside the oxygen uptake tube and the fixing ring, so that the used oxygen uptake tube and the fixing ring are fixed into a whole, the used oxygen uptake tube is not easy to swing and fall off, and the fixing stability and the use reliability are good.

The utility model relates to an improved oxygen uptake tube which comprises an oxygen uptake tube body, the oxygen uptake tube body comprises an oxygen uptake main tube, two oxygen uptake branch tubes, a connecting part communicated with the oxygen uptake main tube and the two oxygen uptake branch tubes, and a nasal plug type oxygen uptake head communicated with the two oxygen uptake branch tubes. The storage box is connected to the oxygen inhalation tube in a sliding mode, a clamping ring structure is fixed to one side wall of the storage box, and the clamping ring structure is connected to the oxygen inhalation branch tube in a sliding mode; the storage box comprises a box body and a box cover covering the box body; a first storage groove is formed in the box body, and a storage device matched with the nasal plug type oxygen inhalation head is placed in the first storage groove; a channel for the oxygen inhalation branch tube to pass through is formed in the storage box, a sealing device is arranged on the storage box, and the sealing device is used for switching the opening state and the closing state of the channel. According to the improved oxygen uptake tube, the nasal plug type oxygen uptake head can be conveniently protected, and the oxygen uptake tube is prevented from being polluted.

The utility model provides an oxygen inhalation tube pressure-resistant foam patch which comprises a foam patch body installed on the outer ring of an oxygen catheter branch, a pressure reduction layer is arranged at one end of the foam patch body, a tearable bonding layer is arranged on the end face, close to the oxygen catheter branch, of the pressure reduction layer, and the surface, away from the tearable bonding layer, of the pressure reduction layer is smooth and not prone to absorbing water. The foam patch body comprises a widened part wrapping the nose pad and a winding part wrapping the space between the two nose pads, and a hollow part is arranged between the winding part and the widened part. The pressure reduction layer with the smooth surface is adopted, water is not prone to being absorbed, the oxygen catheter can be properly wiped through alcohol, pressure generated by the oxygen catheter on the skin can be relieved, the comfort level of a patient is improved, and the incidence rate of catheter-related pressure injuries is reduced; the tearable bonding layer can be bonded to the outer layer of the catheter; the hollow part is arranged between the winding part and the widening part, so that the winding part can be conveniently wound on the outer ring of the nose pad section between two snorting parts, the widening part wraps along the outer circle of the nose pad, materials are convenient to take, and the nose pad is disposable.

The utility model relates to the field of oxygen uptake tubes, and provides an improved child nasal oxygen uptake catheter which comprises an oxygen uptake tube, the oxygen uptake tube comprises a first catheter, one or two second catheters and one or two nasal intubation tubes, the one or two second catheters are connected to the ends of the first catheter respectively, the one or two nasal intubation tubes are arranged on the second catheters in a communicated mode, and the first catheter protrudes upwards to form an arc-shaped structure. The first catheter can abut against the nose, the nasal cannula is bent downwards and can be inserted into nostrils, a first buffering part capable of abutting against the nose is arranged at the bottom of the first catheter, a second buffering part capable of abutting against the face is arranged on the second catheter, and the first buffering part and the second buffering part can be fixed through medical proof fabric. The oxygen uptake tube is fixed on the nose of a person, the oxygen uptake tube and a traditional oxygen uptake tube can be used alternately, the comfort degree of a child is improved, the contact area of the first buffering part and the second buffering part is large, the buffering and fixing effects are good, and the technical problem that an oxygen uptake catheter is fixed between the mouth and the nose for a long time, and discomfort is caused to the child is solved.

A method for forming a battery cell in a rechargeable energy storage system comprises providing a cathode and an anode, the cathode containing a lithium metal phosphate. The method includes positioning a separator between the cathode and the anode, the separator having a side facing the anode and a side facing the cathode. The method includes depositing a catalyst layer, consisting of an oxygen storage catalyst, onto the cathode-facing side of the separator such that the catalyst layer continuously covers the cathode-facing side of the separator. The oxygen storage catalyst has an oxygen uptake capacity at or above a threshold temperature, and the oxygen storage catalyst has an oxygen retention capacity at or above the threshold temperature, the threshold temperature being at least 200 degrees Celsius.

The invention discloses a multi-scale data-based two-factor coal spontaneous combustion tendency comprehensive judgment method, which comprises the following steps of: constructing a two-factor coal spontaneous combustion tendency comprehensive index on the basis of an entropy weight method by combining a cross point temperature test and a chromatographic oxygen uptake test, and dynamically distributing a low-temperature oxidation stage weight of a target coal sample by adopting the entropy weight method, and constructing a two-factor coal spontaneous combustion tendency comprehensive index. According to the method, the problem of judgment deviation caused by only paying attention to the local oxidation stage in an existing single method is solved, the characterization capacity of the whole coal spontaneous combustion process is remarkably improved, a scientific and practical judgment basis is provided for coal mine underground coal spontaneous combustion risk monitoring, and the misjudgment risk caused by limitation of a single index is effectively reduced.

Disclosed herein is an in vitro diagnostic (IVD) analyzer (200) comprising at least one sensor (212) located in a flow-through sensor path (211) of a detection unit and requiring at least one oxygenated calibration fluid (221 ', 222') for calibration. The IVD analyzer (200) further comprises: a fluid supply unit (220) comprising at least one deoxygenated calibration fluid (221, 222); a fluid selection valve (230); the IVD analyzer (200) comprises a fluid selector valve (230), and at least one oxygenation conduit (215, 216) having two ends connected as a loop with the fluid selector valve (230), where the oxygenation conduit (215, 216) comprises an oxygen permeable wall, and where the IVD analyzer (200) further comprises a pump (240) and a controller (250), the controller is configured to control the pump (240) and the fluid selection valve (230) to deliver a deoxygenated calibration fluid (221, 222) into the oxygenation conduit (215, 216), wait for a predetermined time required for oxygenation of the deoxygenated calibration fluid (221, 222) via oxygen uptake from ambient air through the conduit wall, and inject the oxygenated calibration fluid (221 ', 222' ') thus obtained into the oxygenation conduit (215, 216). 222 ') into the sensor path (211) for the calibration of the at least one sensor (212). A corresponding automated method of calibrating at least one sensor (212) is also disclosed herein.

The invention provides a mining breathing self-rescue system capable of intelligently detecting toxic gas, which comprises a mining silica gel half mask, a control valve, an air bag, a compressed oxygen bottle, an expiration pipe, an inspiration pipe, a gas sensing array module, a sensing cabin and a single chip microcomputer, one side is an expiration pipeline connected with a compressed oxygen self-rescuer cleaning tank and used for purifying expired gas, the other side is an inspiration pipeline connected with a compressed oxygen self-rescuer air bag, and oxygen adjusted and released by a compressed oxygen bottle adjuster and human body expired gas filtered and purified by the cleaning tank are stored in the air bag. The concentration of toxic gas in the half mask can be monitored, flow conveying of oxygen of the self-rescuer can be controlled, the service life of the self-rescuer can be prolonged, oxygen uptake operation time can be shortened, threat of colorless and odorless gas to miner lives can be reduced, rescue time after disasters occur can be strived, and the self-rescuer has important practical significance for guaranteeing health and safety of miner lives before and after disasters.

The utility model relates to the field of oxygen uptake tubes, in particular to an anti-bending oxygen uptake tube for cardiology department nursing, which is characterized in that a reinforcing structure is arranged at the joint of a first joint and a first tube body, so that the oxygen uptake tube is prevented from being bent when being vertically pulled or collided. Comprising a first pipe body, one end of the first pipe body is fixedly provided with a first connector used for being connected with equipment, the first connector is in a horn shape with an outer opening, the other end of the first pipe body is provided with a second connector used for branching, the other end of the second connector is connected with two paths of second pipe bodies, and the tail ends of the second pipe bodies are connected with third connectors matched with nostrils. The first pipe body at the inner end of the first connector is sleeved with a guide cap, the guide cap is of a conical structure back to the first connector, and the pointed end of the guide cap is fixedly connected with the inner end face of the first connector. A spring wrapping the first pipe body is fixedly arranged at the open end of the guide cap. The device is easy to operate, convenient to use and suitable for various patients.

The utility model relates to a pressure sore prevention oxygen uptake protection patch which comprises an outer protection layer, a breathable layer, an oxygen uptake layer, an absorption layer, a pressure dispersion layer and an adhesion layer which are sequentially arranged from outside to inside. A plurality of grooves are uniformly distributed in the adhesion layer and protrude from the adhesion layer to the pressure dispersion layer; the groove is higher than the bottom end of the adhesion layer; a containing groove matched with the groove is formed in the pressure dispersing layer, and the pressure dispersing layer is made of an elastic material; a supporting layer is further arranged between the outer protective layer and the breathable layer and is of a grid structure or a honeycomb structure. According to the pressure sore prevention oxygen uptake protection patch, stable supporting is provided through the supporting layer, the overall structural strength of the protection patch is enhanced, it is guaranteed that the shape and the function of the protection patch are kept in the using process, and deformation or collapse caused by pressure and friction is avoided; the supporting layer can uniformly disperse external pressure, relieve local pressure concentration, prevent skin and tissue damage and prevent pressure sores.