40 results about "Decompression sickness" patented technology

The invention relates to an anti-leakage method for a coffee machine. After a water pump stops working, the residual high pressure in a brewing chamber is utilized to drain the residual liquid in a capsule from a water inlet surface of the capsule through a decompression water path, under a closed state of the brewing chamber. The invention also relates to an anti-leakage coffee machine which comprises a shell, a piston, a water inlet component, a water draining component and the brewing chamber used for accommodating the capsule, wherein the water draining component comprises a decompression connecting pipe, a decompression pipe and a decompression valve; the decompression connecting pipe is arranged on the shell; the decompression pipe and the decompression valve penetrate through the piston in a sealing form; one end of the decompression pipe is communicated with the brewing chamber while the other end is connected with one end of the decompression connecting pipe; the other end of the decompression connecting pipe is communicated with the decompression water path; the chamber of the decompression pipe is communicated with the decompression connecting pipe so as to form a decompression water channel; the decompression valve is used for controlling the decompression water channel and the decompression water path to connect or close. Compared with the prior art, the anti-leakage coffee machine can effectively solve the leakage problem of the coffee machine caused by the residual liquid in the coffee capsule.

A mathematical model that models gas exchange of a central compartment with an environment having a model gas is provided. The central compartment is modeled to be in direct fluid communication with a plurality of peripheral compartments and with the environment to exchange the model gas therewith. Using a measure of an inert gas in a breathing mixture over a period of exposure of a person to the breathing mixture as a measure of the model gas in the environment over the time period, a measure of the model gas in the central compartment can be calculated according to the model. A risk of decompression sickness to the person resulting from the exposure can then be calculated based on the calculated measure of the model gas in the central compartment.

The invention relates to a steam box pre-decompression device. A steam box comprises an internal steam cavity and a computer controller. The steam box pre-decompression device comprises a steam outlet, a separation blade and a power component, wherein the steam outlet is formed in the surrounding wall of the internal steam cavity, the separation blade is movably arranged at the position of the steam outlet, can cover the steam outlet to block the steam outlet, and can also be removed from the steam outlet to open the steam outlet, the power output end of the power component is connected with the separation blade and can drive the separation blade to cover the steam outlet or be removed from the steam outlet, and the power component is connected with the computer controller. Compared with the prior art, the steam box pre-decompression device and method have the advantages that due to the arrangement of the steam outlet in the surrounding wall of the internal steam cavity, when food cooking is to be finished, the power component can be controlled by the computer controller to drive the separation blade to be removed from the steam outlet so that steam inside the steam box can be decompressed in advance.

A simple visible light communication method and system that, underwater in an ordinary water-quality in which a diver is allowed to go under the water, are able to reliably communicate with a ship, or the like, above water while the diver is stopping at a safety stop position at a depth of 5 m in order to prevent occurrence of dysbarism. The visible light communication method and system us the visible light communication system that includes a transmitter and a receiver and that is usable underwater, and include at a transmitting side, modulating information to be transmitted to pseudo-white light that is adjusted to have a color temperature of 4000 to 10000K and a luminous flux of 550 to 1500 lumens and that is emitted from an LED, and transmitting the pseudo-white light; and, at a receiving side, extracting the information by demodulating the received pseudo-white light.

Described herein is a device and system and method for the detection of naturally occurring gas bubbles in the bloodstream; in one embodiment, a wireless optical device may be placed on various parts of the body including a finger or earlobe or is coupled with the SCUBA mouthpiece and detects certain vital signs such as heart rate, blood oxygen saturation (SpO2) and respiration rate by analyzing the photoplethysmogram (PPG) from a miniature sensor. There is also a method and apparatus for real-time non-invasive optical monitoring of actual state of decompression sickness are presented. The method is based on simultaneous measurements of PPG signals in different locations of human body and analysis of such a factor as phase shifts between various locations, change the shape of PPG signal between different locations, existence and modification of slow trends and low frequency modulations and angular distributions of the out-coming light.

The invention discloses a pressure simulating and testing device which comprises a testing cabin, wherein a pool is arranged inside the testing cabin; an air inlet and an exhaust hole are formed in the testing cabin; the air inlet is connected with an air pressurizing device through a pipeline; the exhaust hole is communicated with the atmosphere through a valve; the air pressurizing device is used for pressurizing and depressurizing the testing cabin; a water supply and discharge device is used for adjusting the water level of the pool; an oxygen supply device is used for inputting oxygen into the testing cabin; a testing platform is used for testing the property of a product inside the cabin through a testing interface in the testing cabin and used for monitoring and testing human body physiological parameters. The pressure simulating and testing device is capable of simulating an environment with the water depth of 20-30m, can meet the physical property testing and relevant physical testing on an underwater breather, and has a function of preventing decompression sickness in a hyperbaric oxygen chamber.

A spinal stretching and decompression device (10) that is effective for treating a plurality of spinal disorders or lower back conditions, such as sciatica. The device (10) is worn around a person's mid-section, and encompasses the person's buttocks and crotch region, during an exercise or stretching session. There are two embodiments of the device (10) with both embodiments comprising a base support belt (12 or 112), a lower support unit (44) that is attached to the base support belt (12 or 112), a first side support belt (72) and a second side support belt (92). The two side support belts pass through loops on the base support belt (92) and each belt is secured together around a person's waist. The difference between the two embodiment is that the first embodiment elements are integrally attached, and the second embodiment elements are removably attached by multiple buckles.

The invention belongs to the field of medicine preparation, and particularly relates to application of N-acetylcysteine in preparing a medicament for preventing decompression sickness caused by fast buoyant ascent escape. N-acetylcysteine is dissolved in normal saline to prepare a 50-500mg/mL injection for use. The dosage of an N-acetylcysteine intraperitoneal injection is 150-1000mg/kg, and the dosage of an N-acetylcysteine intravenous injection is 200-500mg/kg. The N-acetylcysteine is used 16-60 minutes before fast buoyant ascent escape. Experiments prove that the N-acetylcysteine can be used for remarkably inhibiting heart failure caused by myocardial fiber fracture due to air bubbles, improving heart functions and reducing lung injury and inflammation, thus reducing pathologic changes caused by decompression sickness. Experimental data is provided to clinically more reasonable application of N-acetylcysteine to prevention of decompression sickness caused by fast buoyant ascent escape.

The invention discloses a decompression mechanism of an engine. The decompression mechanism comprises a central shaft, a gear, a camshaft and a decompression disk, wherein the gear, the camshaft and the decompression disk are fixedly arranged on the central shaft. A rocking arm, a decompression pin and an elastic reset component are arranged on the decompression disk; the rocking arm is connected with the decompression disk through a hinge shaft; a first limiting part is arranged at one end of the rocking arm; the decompression pin is rotatablely arranged in a pressure relief hole; a second limiting part which can be stirred by the first limiting part is arranged at one end of the decompression pin; a first surface capable of forming a complete cambered surface with the surface of the camshaft and a second surface capable of protruding the surface of the camshaft are arranged at the other end of the decompression pin; and the elastic reset component stirs the decompression pin to the second surface to protrude the surface of the camshaft through the rocking arm. When the engine is started, the decompression pin protrudes the surface of the camshaft, is able to push a lower rocking arm to rotate, so as to open an exhaust valve to release the air pressure in a cylinder, and the purposes of decreasing starting resistance and reducing a frequency at which failures occur in the process that the engine is started are realized. The invention also provides the engine using the decompression mechanism.

The invention discloses a visual gastrointestinal decompression device which is composed of a decompression hose (1), a guide wire (2), a camera (3), a camera wire (4), a camera control chip (5), a plug and play wire socket (6), an external display (7) and the like. The visual gastrointestinal decompression device is characterized in that a brand-new visual gastrointestinal decompression scheme is provided. Based on a through of mechatronics, the decompression function and visual function are integrally designed, the camera is placed at the head of a decompression pipe to conduct visual operation on the portion to be observed, and the external display device can achieve real-time monitoring. It is avoided that the gastrointestinal decompression device is implanted into other cavities by mistake in the implanting process, medical staff can monitor the position of the decompression device and the lesion portion change condition in real time conveniently, the complication of a gastrointestinal surgical portion can be found out timely and to be treated correctly, prognosis of patients is improved, and the medical cost is reduced. By means of the scheme, the visual gastrointestinal decompression device has the advantages of being simple and compact in design, practical, safe, reliable and the like and capable of being widely applied to monitoring, diagnosis and treatment of gastrointestinal diseases.

The invention discloses a novel respirator for respiratory medicine department. The respirator structurally comprises an alarm mechanism, a power switch, a shell, a display screen, an adjusting button, an observation window, a tube connector and an oxygen conveying tube. The alarm mechanism is installed on the shell. The alarm mechanism is composed of a transmission chain, a fixed decompression device, a first gear, a sensing device, a power-on device, a slide device, an auxiliary device, a fixed rod, a collision device and a loudspeaker device. The transmission chain is arranged on the frontend face of the fixed decompression device. The fixed decompression device and the transmission chain are of an integrated structure. The first gear is arranged at the top end of the transmission chain. The first gear is in clearance fit with the transmission chain. The sensing device is installed on the left side of the slide device. The bottom of the slide device is fixedly provided with the power-on device. When the respirator fails and oxygen can not be supplied, the respirator can make a sound to warn a user, the user can respond immediately, and the life danger caused by oxygen supply deficiency of the user is avoided.

The invention discloses a preparation method for extracting water-soluble polyose from black pine needles according to a decompression inner-boiling method. The preparation method comprises the following steps: putting the black pine needles in a constant-temperature drying cabinet for 24 hours' drying at 40 DEG C, milling the dried black pine needles by a miller, and sieving with a 80-mesh sieve; weighing 1 g of the obtained black pine needle powder, putting the weighed black pine needle powder in a glass device, and adding 2 ml of ethanol for 30 minutes' uniform wetting, so as to ensure that ethanol permeates the black pine needle powder; carrying out vacuum suction to reduce the gauge pressure to -0.080 MPa, carrying out decompression suction till slightly boiled bubbles are generated on the mixture surface, and carrying out filtration; extracting a solution by utilizing hot water of which the volume is 20 times of that of the solution and the temperature is 85 DEG C for 6 minutes; selecting a small amount of the extracted solution for dilution, and measuring the polyose content according to a phenol-sulfuric acid method; precipitating the extracted solution by utilizing a 4% ethanol solution, carrying out still standing for a night, carrying out centrifugation, and then taking out the precipitate for drying in the drying box; preparing the dried solution into a polyose product. Through adoption of the technical scheme, the leaching amount of polyose is improved; the decompression inner-boiling method is low in production cost and simple in process; the preparation method has the advantages that the effective components of polyose can be quickly extracted and separated in an environment-friendly manner.

The invention belongs to the field of medicine preparation, and particularly relates to applications of ammonium pyrrolidine carbodithioic salt in preparation of a drug for preventing decompression sickness caused by fast buoyant ascent escape. The ammonium pyrrolidine carbodithioic salt is dissolved in normal saline to prepare 25-125mg/mL of injection for use. The dose of ammonium pyrrolidine carbodithioic salt intraperitoneal injection is 80-120mg/kg, and the dose of ammonium pyrrolidine carbodithioic salt intravenous injection is 30-50mg/kg. The ammonium pyrrolidine carbodithioic salt is used at 20-35 minutes before fast buoyant ascent escape. The experiments show that the ammonium pyrrolidine carbodithioic salt can obviously inhibit the heart failure caused by myocardial fiber fracture due to bubbles so as to improve the cardiac function and lighten the injury and inflammation of the lung, so that the pathologic change caused by the decompression sickness can be lightened. Furthermore, the applications can provide experimental data for clinically more reasonably applying the ammonium pyrrolidine carbodithioic salt onto the decompression sickness caused by the fast buoyant ascent escape.

Aspects of the present disclosure include an easy to use electronic no-decompression table for use in recreational dive planning in order to avoid decompression sickness. In one embodiment, the electronic no-decompression calculator is a portable handheld unit. The user is requested to enter at least one relevant piece of information about a dive and that information is used to automatically compute depth, bottom time, and surface interval time limits as well as pressure group categorizations. In one embodiment, an information tablet is provided with information relevant to planning a dive.

The invention discloses an oil well mouth sampling device, a decompression device and a sampling method. The sampling device comprises a decompression device and a sampling bottle; an outlet of the decompression device is connected with an inlet of the sampling bottle, the device further comprises a uniflow valve and a uniflow valve opening and closing device, and the uniflow valve opening and closing device comprises an outer pipe, a screw, a nut and an ejector rod; the screw is located inside the outer pipe, the ejector rod is arranged at the front end of the screw, the ejector rod is connected with a valve ball of the uniflow valve, the uniflow valve is connected with a well opening ground flow pipeline, the screw is cooperatively connected with the nut, the nut is blocked at the rear end of the outer pipe, the front end of the outer pipe is connected with a valve body of the uniflow valve, a fluid outflow opening is formed in the outer pipe body, and the upper end of the decompression device is connected with the fluid outflow opening. The well mouth ground flow pipeline, the uniflow valve, the outer pipe, the decompression device and the sampling bottle are sequentially communicated. Obtained well mouth fluid samples can be more truly close to multi-phase fluid at the well bottom; meanwhile, the method enables the sampling operation process to be safer.

The invention discloses a bottom feeding and decompression device for a bucket elevator and relates to the technical field of bucket elevators. The bottom feeding and decompression device comprises a main shaft, and a lining, a bearing and a bearing cap which are arranged on the main shaft and is characterized by also comprising an oil seal which is sleeved on the main shaft and positioned outside the lining, an oil seal seat which is sleeved on the main shaft and positioned outside the oil seal, a baffle ring which is sleeved on the main shaft and positioned inside the lining, and an air jet which is positioned above the main shaft and connected with the lining; and an air pipe is arranged on the air jet. The bottom feeding and decompression device is reasonable in structure, low in friction and long in service life, and runs stably; the main shaft is sealed tightly; and materials are not leaked and overflowed.

The invention relates to the field of medicines and discloses a decompression device. The decompression device disclosed by the invention is of a mask shape; a liquid crystal screen 1 is arranged at a human eye; and a silencing part 3 is arranged at the mouth part, wherein the liquid crystal screen 1 is used for providing video frame and the silencing part 3 is used for eliminating sound emitted by a human body. After a user wears the decompression device, the natural environment can be simulated by using the video frame provided by the liquid crystal screen and the emitted shouting sound can be eliminated by the silencing part, so that the user can give full vent without considering the influence on other persons, and further negative mood is effectively eliminated and physical and mental health is facilitated. In addition, the decompression device is simple in structure and is convenient to use. Furthermore, the decompression device also comprises earphones 2 for providing audio frequency so as to simulate the natural environment with better effect and more real feeling.

The present invention relates to a method for substituting for or acting with the hyperbaric oxygen therapy to improve hypoxia, comprising the step of: administrating a phthalide compound to a subject in need thereof, wherein the phthalide compound can increase the oxygen release efficiency of blood hemoglobin (Hb) in the subject and further increase the cellular oxygenation level, and when the phthalide compound substitutes for or act with the hyperbaric oxygen therapy, the common adverse side effects of the hyperbaric oxygen therapy, such as barotrauma, decompression sickness and oxygen poisoning, are prevented. The phthalide compound is used to substitute for or act with 2,3-BPG, to modulate and decrease the oxygen affinity of hemoglobin (Hb), to increase the oxygen release efficiency of hemoglobin (Hb) to tissue cells, thereby achieving a normal cellular oxygenation level and maintaining the cellular oxygenation level in a normal range.