| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | System for simulating metabolic consumption of oxygen | US10051731 | 2002-01-22 | US06957651B2 | 2005-10-25 | Marshall L. Nuckols; Kirk Vanzandt |
| A method and system are provided for simulating the metabolic consumption of oxygen contained in a breathable gas. A variable volume chamber cyclically increases/decreases in volume to receive the breathable gas/expel an exhaust gas. Hydrogen and carbon dioxide are introduced into the chamber to mix with the breathable gas to form the exhaust gas. Hydrogen is introduced in an amount sufficient to react with an amount of the oxygen in the exhaust gas equivalent to that used by a human during a selected level of activity. Carbon dioxide is introduced in an amount equivalent to that provided by a metabolic respiratory quotient associated with the same level of activity. A catalyst, exposed to the exhaust gas, causes a reaction between the hydrogen and oxygen in the exhaust gas to generate simulated human exhalation. | ||||||
| 182 | Respiratory booster machine and method for enhancing ventilation | US10654816 | 2003-09-03 | US20040069304A1 | 2004-04-15 | Mohammad R. Jam |
| The respiratory booster machine is configured to generate and transmit particularly designed and timely delivered vibrations to the lungs of a subject to improve ventilation, augment diffusion of gases across alveolar membrane, facilitate pulmonary blood perfusion, prevent focal alveolar collapse, and enhance effective expectoration. The machine has an acoustic signal generator having modulated wave-generating circuitry and an acoustic signal transmitter having an electro-acoustic transducer. Vibrations from the acoustic signal are induced into the subject's air stream, in one embodiment by a specially designed tube system, and then transmitted to a subject's airways via any type of endotracheal tube, respiratory mask, nasal prong, or directly through the chest wall. Acoustic signal receivers connected to a computer receive and analyze the effect of the vibrations on the subject. The machine can be used independently or in combination and cooperatively with any type of ventilator machine, either conventional or high frequency. | ||||||
| 183 | Method and an arrangement for checking the operation of breathing equipment | US09172864 | 1998-10-15 | US06655383B1 | 2003-12-02 | Mats Erik Lundberg |
| The invention relates to a method of checking the working and/or the state of breathing equipment prior to its use, and also to an arrangement for carrying out the method. The breathing equipment includes a control circuit which, in turn, includes a programmed microprocessor (7), a sensor (10) mounted in the breathing equipment and connected to the microprocessor, and an indicating arrangement (11) connected to the microprocessor (7). The inventive method is characterized by activating the control circuit and therewith measuring or determining at least one functional or state parameter, comparing the measured parameter value with a control value, and indicating an acceptable or unacceptable value in the indicating arrangement (11). | ||||||
| 184 | Portable multi-function system for testing protective devices | US10187380 | 2002-07-02 | US20030126911A1 | 2003-07-10 | Greg Alan Tilley |
| A multi-function device for testing masks such as NBC masks used in civilian and military applications. In its preferred form, the device is self-contained and can be readily transported to field sites by one or two individuals. The device includes a protective storage and transport case. The case includes an upper portion and a lower portion. The upper portion of the case houses the power unit assembly and includes sufficient storage space to store such things as an aerosol generator reservoir, various headform accessories, a containment shroud, manuals (e.g. installation, operation and maintenance manuals) and nominal tools. The lower portion of the case houses the head assembly and controller unit which are preferably mounted on a cover or top panel. Underneath the top or cover panel of the lower portion of the case are stored the light scattering chamber, flow sensor, pressure transducer, circuit boards and valves. The device can perform multiple tests including: (1) an overall mask leakage test; (2) an outlet valve leakage test; (3) a drink seat test; (4) a drink tube flow test; (5) a drink train leakage test; and, a mask fit test. Further, the device can be programmed for any given test period to perform one or all of the aforementioned tests. The device further can readily create a data log to record results of any given test or series of tests. The device further includes numerous safety features including requiring any operator of the device to reject or retest a defective mask. | ||||||
| 185 | Test head | US09757004 | 2001-01-09 | US20010007255A1 | 2001-07-12 | Willi Stumpf |
| Test head for respirator and diving masks with a shape approximating the human head and having at least one air duct traversing the interior of the test head. The test head includes an opening, preferably in the area of the mouth, to which one end of the air duct is attached while the other end can be connected to air supply or measuring equipment. The air duct includes a stopper element for selective pressure-tight closing of the air duct in an area of the test head. | ||||||
| 186 | Respirator fit-testing with size selected aerosol | US939995 | 1997-08-29 | US6125845A | 2000-10-03 | Thomas G. Halvorsen; Patricia B. Keady McDonald |
| A system and process for respirator fit-testing are disclosed. The system includes conduits for taking first and second aerosol samples, from inside of the respirator mask and from outside of the mask, respectively. The samples are provided to a radial differential mobility analyzer for generating first and second modified samples corresponding to the aerosol samples. The modified samples are provided to a condensation particle counter, which generates first and second concentration values representing concentrations of suspended elements in the respective modified samples. Comparison of the concentration values yields a fit factor indicating how effectively the respirator seals against leaks. Alternative embodiment systems employ a cylindrical DMA, an electrical precipitator, or an inertial separating device in lieu of the radial DMA. For generating concentration values, an electrometer, a photometer or an optical particle counter can be used in lieu of the condensation particle counter. The system facilitates testing in ambient conditions reducing costs and enabling closer simulation of actual working conditions. | ||||||
| 187 | Method and system for checking the operability of electrical-based components in a breathing equipment | US604073 | 1996-02-20 | US5832916A | 1998-11-10 | Mats Lundberg |
| A method of verifying and indicating proper or improper functioning of breathing apparatus for an irrespirable environment. The breathing apparatus includes gas supply for supplying a user with breathable gas, at least one electrical component, a processor connected to the at least one electrical component, and at least one status indicator connected to the processor. A test signal is generated with the processor. The test signal is sent to the at least one electronic component of the breathing apparatus. A response to the test signal is generated with the at least one electrical component of the breathing apparatus. The response is transmitted to the processor. The response is compared to a predetermined response corresponding to proper functioning of the at least one electronic component of the breathing apparatus with the processor to determine a status of the at least one electrical component of the breathing apparatus. An output signal is generated with the processor corresponding to the proper or improper functioning of the at least one electrical component of the breathing apparatus. The output signal is transmitted to the status indicator. A status signal is generated with the status indicator to indicate the proper or improper functioning of the at least one electrical component of the breathing apparatus. | ||||||
| 188 | Test head for respirator masks | US827083 | 1997-03-26 | US5808182A | 1998-09-15 | Willi Stumpf |
| A testing head for respirator and diving masks has a form approximating the human head with at least one air conduit traversing the head inside, wherein the testing head has an opening preferably in the area of the mouth, to which the air conduit is connected with its one end, while its other end can be connected with air supply or air exhaust or else testing devices. The testing head has a covering of elastically pliable material which at least partially encloses the head pressure tight on its exterior, wherein the mentioned opening is recessed, and wherein the testing head has a compressed air line which connects the intermediate space between the head and the covering with a compressed air supply for inflating the covering. | ||||||
| 189 | Air flow recorder, generator and analysis system for inhalation device testing and modeling | US197365 | 1994-02-16 | US5622164A | 1997-04-22 | David Kilis; Harold E. Stone |
| An air flow device for use in recording, analyzing, replicating, and generating breathing patterns. A piping structure provides receipt and transfer of pressurized gas through the device. The piping structure has a source connection for receiving a single constant source of pressurized gas. Aspirators are connected to the piping structure for receiving pressurized gas from the source connection and for selectively creating an output pressurization comprising a positive pressure gas flow and a negative pressure gas flow at a proportional solenoid valve. A balancing valve is connected to the piping structure for controlling and calibrating the output pressurization of the aspirators. A control system provides control of the aspirators, the balancing valve, and a solenoid valve. A solenoid valve is mechanically connected to the piping structure with pneumatic input and output connections and electronically connected to the control system with data input and output connections. The solenoid valve provides patterned pneumatic flow between the aspirators and a system model according to air flow commands received by the solenoid from the control system. The system model, in one embodiment, is a breath actuated inhaler device. | ||||||
| 190 | Apparatus and method for testing respirator fit and seal | US289697 | 1994-08-12 | US5529056A | 1996-06-25 | Kevin K. Brunson; Diana M. Szygenda |
| Apparatus for use in checking the fit of a respirator with the face of a wearer. The apparatus may include a generally rectangular envelope having a longitudinal opening to receive the respirator therein. Low adhesive contact surfaces may be formed within the interior of the opening to form a fluid barrier with the periphery of the respirator. One or more passageways, formed within the apparatus, may be opened and closed to test the fit or seal between the periphery of the respirator and the face of the wearer. The envelope may be used to check the fit of a wide variety of types and styles of respirators and face masks. Envelopes with configurations other than rectangular may also be satisfactorily used to check the fit of a respirator. | ||||||
| 191 | Oxygen breathing apparatus simulator | US408179 | 1989-09-15 | US5029578A | 1991-07-09 | Edmund Swiatosz |
| A breathing bag apparatus and simulator is disclosed that has a circuitous and continuous tube within its bag(s) communicating outside air from an inlet filter and carbon-dioxide-conversion canister to the inhalation fixture of the user's facemask. A permanent carbon-monoxide-conversion cylinder forms part of the path of the tube within the bag(s). The cylinder uses porous ceramic pellets to host a coating of platinum as its catalytic noble metal. | ||||||
| 192 | Non-invasive quantitative method for fit testing respirators and corresponding respirator apparatus | US153511 | 1988-02-08 | US4846166A | 1989-07-11 | Klaus Willeke |
| A method and apparatus for conducting the method is disclosed for non-invasive, quantitative respirator fit testing. The method includes the step of having the wearer properly position the respirator over his nose and mouth, inhale to create a negative pressure inside the respirator cavity volume, hold his breath and record the pressure differential versus time decay rate between the pressure inside the respirator cavity volume and that of the surrounding environment. The method may also include establishing a leakhole of known dimension, repeating the above steps and determining the volume of the respirator cavity based upon the results of the recorded differential pressure versus time by comparing the result to calibration curves.The apparatus of the present invention includes modifying a conventional face mask respirator by providing the respirator with a pressure sensor and a leakhole of known dimension. Preferably, the apparatus can also include a calculator to continuously calculate a quantitative factor to indicate the degree of protection, which is based upon the volume of the respirator cavity divided by the volumetric flow rate through the leakhole or holes of unknown dimension and location for a standard unit of time, given an initial negative pressure in the respirator cavity. | ||||||
| 193 | Smoke generator | US155376 | 1988-02-12 | US4818843A | 1989-04-04 | Edmund Swiatosz |
| A smoke generator apparatus has a housing with an electrical pump mounted in the housing and connected to a fluid reservoir filled with a fluid for generating smoke. A coiled electical resistance heating tube is mounted in the housing and forms an electrical resistance in an electrical circuit. The coiled electrical resistance heating tube has a thin coating of an electrical insulating, thermal conducting material, such as a thin coating of boron nitride thereon which electrically isolates the coils of the coiled electrical resistance heating tube while conducting heat through the coils from the hot to the cold end of the coiled electrical resistance heating tube. The coiled electrical resistance heating tube has one end operatively connected to the pump and the other end forming an outlet for dispensing superheated vapors into the ambient air for condensation into smoke particles. A pair of thermostats is mounted at different positions on the coated coiled electrical resistance heating tube for sensing the temperature therein for controlling heater temperature and actuating the pump for pumping the fluid from the reservoir into the resistance heating tube for generating the smoke. | ||||||
| 194 | Oxygen breathing apparatus simulator using supplemental oxygen | US391191 | 1982-06-23 | US4471774A | 1984-09-18 | Edmund Swiatosz |
| A training canister for use with a personal breathing apparatus supplements filtered air with oxygen supplied by an internal cylinder. The canister has an integral filter providing airflow to the breathing apparatus, and utilizes a miniature high pressure valve to release supplemental oxygen into the system from an oxygen cylinder charged to up to 2000 psi. The training canister simulates operational equipment in size, shape, integration to the personal breathing apparatus, and actuation. | ||||||
| 195 | Training breathing apparatus | US972935 | 1978-12-26 | US4325364A | 1982-04-20 | John D. Evans |
| To simulate the experience of breathing hot or warm air in the use of breathing apparatus, this invention provides an apparatus comprising a canister through which the wearer inhales and exhales, the canister being filled with a reagent which creates heat by reaction with the carbon dioxide or moisture in the exhaled breath. The inhaled air absorbs the heat given out by the reaction. The apparatus can be modelled on the actual breathing apparatus to be used and is highly acceptable to users. | ||||||
| 196 | Device for enclosing a person's head to test a breathing mask | US105016 | 1979-12-19 | US4253328A | 1981-03-03 | Adalbert Pasternack |
| A device for enclosing a person's head which is fitted with a breathing mask for the purpose of testing the sealing of the mask to the wearer's face comprises a substantially cylindrical rigid helmet having a closed top adapted to overly the wearer's head and an open front portion adapted to be positioned in front of the wearer's face which is bounded by a front rim and side portions having bottom edges which have cut out curved portions forming supporting engagement edges conforming to the wearer's shoulders. A flexible apron has its periphery secured to the helmet rim around at least a portion of the opening and it carries drawstrings at its bottom edge which may be tightened around the body of the wearer so that the helmet with the apron seals over the person's head. In addition the helmet is provided with a connection having a valve for admitting gases into the interior of the helmet for testing purposes and the valve advantageously has a stem which is long enough to be engaged by the person's shoulder when the device is positioned on the wearer. Engagement of the valve on the shoulder causes opening of the valve. | ||||||
| 197 | End tidal sampler for an oxygen breathing mask | US50576665 | 1965-10-29 | US3395701A | 1968-08-06 | BARTLETT JR ROSCOE G; BRUNSMAN EDWARD J |
| 198 | Leakage measuring apparatus | US26514652 | 1952-01-05 | US2738669A | 1956-03-20 | LESLIE SILVERMAN; GEORGE LEE |
| 199 | Gas mask canister tester | US58306745 | 1945-03-16 | US2442187A | 1948-05-25 | EARL TREMAIN HENRY |
| 200 | Leak tester for therapeutic masks | US54276344 | 1944-06-29 | US2420372A | 1947-05-13 | HEIDBRINK JAY A |
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