Class / Patent application number | Description | Number of patent applications / Date published |
128205130 | Respiratory gas supplied from expandable bag, bellows, or squeeze bulb | 49 |
20080257350 | RESPIRATOR AND METHOD FOR CALIBRATING FLOW RATE MEASURING COMPONENT THEREOF - A respiration apparatus and a method for calibrating respiration parameters thereof are provided. A flow measuring reference component arranged behind the inspiratory valve in the ventilator is used as a flow measuring reference sensor for calibrating the flow sensor so that the flow rates of the gas through the flow measuring reference component and the flow sensor to be calibrated are identical or in a corresponding relation. Electrical parameters output from the flow sensor and the flow measuring reference component are respectively acquired and processed to obtain a relation curve of the gas flow rate and the electrical parameter of the flow sensor on the basis of the read gas flow rate and the electrical parameters of the flow sensor. The present invention enables automatic calibration for a flow sensor without using any measuring instrument. | 10-23-2008 |
20080257351 | RESUSCITATION DEVICE - The device of the present invention relates to a resuscitation device that can be operated by a single user in a hands-free manner and a method of using the resuscitation device for administration by the user to a patient of either pulmonary resuscitation or cardio-pulmonary resuscitation (CPR) which employs fresh air. The device of the present invention may be either human-actuated or non-human actuated. Typically, when used in emergency situations, the device of the present invention is human-actuated. The device of the present invention comprises a neck support means interconnectedly related to a mask; wherein the mask is interconnectedly related to a respiratory hose by means of a one-way valve coupling; and further wherein the respiratory hose is interconnectedly related to a bellows device by means of a one-way valve coupling. | 10-23-2008 |
20090071482 | Resuscitators - A manual squeeze bag resuscitator has an outlet ( | 03-19-2009 |
20090139524 | OXYGENATING DEVICE AND METHOD - An oxygenating device including: a body having: a first coupling spigot to which a collapsible bag is connected; an oxygen inlet to which a supply of oxygen can be connected for inflating, in use, the collapsible bag with oxygen; a second coupling spigot having a female leur socket for receipt in use of a male leur connector of an endotracheal tube or laryngeal mask; and a mask which can be applied, in use, about the nose and mouth of a patient and having an inlet/outlet socket mounted over the second coupling spigot. | 06-04-2009 |
20090159083 | Color-coding system for breathing bags - A breathing bag is disclosed. The breathing bag comprises a bag body enclosing an interior volume of the breathing bag. The bag body includes a distal end portion and a neck portion terminating in an open proximal end of the breathing bag. The breathing bag further comprises a bushing coupled to the neck portion. The breathing bag includes at least one indicia thereon. The at least one indicia has a color corresponding with a size of the breathing bag. | 06-25-2009 |
20090250061 | Resuscitation Face Mask - An inflatable resuscitation mask for use in hospitals or healthcare clinics for medical purposes including use in anesthesia of a patient. The mask includes several features such as an inflatable/deflatable balloon that allow a perfect seal between the mask and the patient's face in order to prevent gas leakage during oxygenation. The mask also includes a carbon dioxide detecting device that assists the medical operator, physician, or nurse to determine proper ventilation. The mask is designed to fit all facial shapes and sizes of the patients and still provide comfort to the patients during oxygenation. | 10-08-2009 |
20100192953 | HYPERINFLATION SYSTEM - A hyperinflation system includes an airbag having an air inlet and an air outlet, and a one-piece multi-way connector including a base, a first tube section projecting from a first side of the base and connected to the air outlet, a second tube section projecting from a second side of the base oppositely of the first tube section, and a pressure gauge projecting from the second side of the base. A multi-port adaptor includes a first port connected fluidly to the second tube section, and a second port adapted for connection with a patient interface. | 08-05-2010 |
20100236557 | RESPIRATION BAG - A collapsible respiration bag assembly is disclosed and includes a flexible hollow body longitudinally extending about a longitudinal axis thereof between an air intake end and an air outlet end and formed with at least three annular folds. A patient valve is fitted at the outlet end and includes a face mask coupler transversing the longitudinal axis. An intake valve assembly is also included and a face mask fitted with a face engaging rim, a dome portion and a valve coupler detachably connectable to the face mask coupler. The dome portion of the face mask is deformable between an operative, concave position and a convex stowing position, where the dome portion is inverted and where the valve coupler is detached from the face mask coupler. The assembly is configurable between at least one extended, operative position and a fully collapsed stowed position where the annular fold zones at least partially overlap. | 09-23-2010 |
20110030688 | Breathing System - Provided is a breathing system comprising a flexible reservoir bag ( | 02-10-2011 |
20110041852 | AMBU-BAG AUTOMATION SYSTEM AND METHOD - A device for automatically squeezing and releasing an AMBU-bag is disclosed. A device has a housing, and a mechanical compression squeezer in the housing. There are openings in the housing for inlet tubes and outlet tubes of AMBU-bag to pass in and out of the housing. A powered actuator powers the compression squeezer. | 02-24-2011 |
20110088695 | PROTECTIVE SHEATH FOR USE WITH VENTILATION BAG - In accordance with one embodiment of the present invention, a protective sheath for use with a manual ventilation bag that is associated with an anesthesia apparatus includes a sheath body that is intended to surround the manual ventilation bag. The sheath body has a plurality of removable overlying sheath layers, with each sheath layer being progressively longer in length from an innermost layer to an outermost layer with respect to the ventilation bag that is received within the sheath body. | 04-21-2011 |
20110174309 | RESUSCITATOR AND ASPIRATOR TECHNOLOGY - An aspiration and resuscitation system which is useable to perform aspiration and/or resuscitation procedures on living beings, particularly small animals, and most particularly newborn small animals such as puppies and kittens. The system includes an aspirator and a resuscitator. Each includes a separable pump and animal interface mask. Further disclosed are aspiration and resuscitation methods using the disclosed apparatus. | 07-21-2011 |
20110203589 | VENTILATING ELEMENT, SYSTEM, AND METHODS - A manually operated ventilating element such as a bellows for administration of artificial respiration, for example, during anesthesia, has wall sections or pleats of different diameters. When the element is actuated through a small stroke length, the smaller section is actuated. A small volume of gas is delivered and the change in delivered volume per unit stroke length is small, so that the operator can precisely control the delivered volume. When the element is actuated through a larger stroke length, a larger volume per unit stroke length is delivered. The same element can be used to treat children and adults. | 08-25-2011 |
20110214673 | Portable Life Support Apparatus Ventilator - In one aspect, the invention relates to a portable life support device including a ventilator comprising a ventilator bag which combines a pressure relief valve and blow through valve. | 09-08-2011 |
20110284004 | WIRELESS VENTILATOR REPORTING - A medical ventilation monitoring system includes a patient ventilation unit defining an airflow path, the unit arranged so that when the unit is applied to a patient, the airflow path is in fluid communication with the patient's airway; an airflow sensor in the air flow path positioned to sense the presence of ventilation airflow to or from the patient; and a wireless transceiver arranged to receive data that is generated by a portable medical device, and to use the data to provide feedback to a rescuer regarding proper administration of ventilation. | 11-24-2011 |
20120097165 | OXYGEN MASK WHICH IS CONNECTED EXTERNALLY TO A CARBON DIOXIDE DENSITY TESTER AND FACILITATES A PATIENT TO BREATHE IN OXYGEN - The present invention discloses an oxygen mask which is connected externally to a carbon dioxide density tester and facilitates a patient to breathe in oxygen. The oxygen mask comprises a mask and a tube unit, and only covers a nose of a patient without covering a mouth. An opening of a respiration tube of the tube unit faces upward to facilitate connecting externally with a resuscitation bag. The respiration tube is provided with a carbon dioxide discharge tube which is integrally formed with the respiration tube and can be externally connected with a carbon dioxide density tester, allowing a paramedic to observe density of carbon dioxide exhaled from the patient, without resulting in a leak to the oxygen mask, which affects the patient to breathe in oxygen. | 04-26-2012 |
20120222676 | OXYGEN CONSERVATION SYSTEM FOR COMMERCIAL AIRCRAFT - An emergency oxygen supply system for use on aircraft in the event of a loss in cabin pressure is configured for delivering allotments of oxygen and timing the delivery such allotments to each passenger so as maximize the efficiency of the transfer of such oxygen into the passenger's bloodstream. The delivery of each allotment is selected so that the entire allotment is available for inhalation into the region of the lung most efficient at oxygen transfer while the volume of the allotment is selected to substantially coincide with the volume of such region of the lung. | 09-06-2012 |
20130180527 | BAG VALVE MASK FOR APPROPRIATE VENTILATION - According to the present invention, a bag valve mask (BVM) for appropriate ventilation, comprising a pressurization portion formed at an air bag, wherein the pressurization portion is the pressurization point pressurized by tips of a user fingers while encompassing the air bag with the fingers, to continuously ventilate a patient with a predetermined amount of air using artificial respiration. More specifically, the BVM comprises: a mask closely adhered to a patient's nose and mouth so as to be isolated from the outside; an air bag in which oxygen or air is accommodated; and a connection hose for communicating between the mask and the air bag. The air bag is configured in such a way that the accommodated oxygen or air flows through to a patient's trachea via the connection hose and the mask, and an identification means is formed at the air bag to identify the pressurization portion. | 07-18-2013 |
20140190484 | MULTIPLE-USE AIRWAY MASK - A flexible transparent multiple use face mask that encloses a user's face allowing the user's airway to be ventilated that includes a transparent flexible airway mask that encloses and ventilates a user's airway, an airway adaptor that directs a quantity of ventilation to the transparent flexible airway mask, a manual resuscitation bag valve that receives the airway adaptor and controls the quantity of ventilation directed to the transparent flexible airway mask and a manual resuscitation bag that produces the quantity of ventilation transmitted through the airway adaptor to the transparent flexible airway mask. The multiple-use airway mask may also be turned inside-out and be utilized in combination with an endotracheal tube or a tracheotomy tube and also includes an optional attachment strap to prevent losing the transparent flexible airway mask as an added safety measure to keep the mask and bag connected. | 07-10-2014 |
20140261429 | OXYGEN-SUPPLYING RESPIRATOR REQUIRING NO ELECTRIC POWER - An oxygen-supplying respirator requiring no electric power is provided. The oxygen-supplying respirator, which is driven not by electricity but by the oxygen supply pressure at an external oxygen supply end, includes an oxygen supply valve unit in communication with the oxygen supply end so as to turn on and off oxygen output therefrom. An inhalation/exhalation time setting valve unit is in communication between the oxygen supply valve unit and the oxygen supply end, receives the oxygen continuously supplied from the oxygen supply end, and outputs oxygen to the oxygen supply valve unit intermittently. Thus, the oxygen supply valve unit is driven to turn on the oxygen supply end intermittently and thereby enable intermittent oxygen output. The respirator can supply oxygen to a patient where there is no electricity. | 09-18-2014 |
20140283837 | High Concentration Nasal Oxygen Mask - A high concentration nasal oxygen mask for delivering high concentrations of oxygen to a patient via the nasal passages of the patient. The high concentration nasal oxygen mask includes a mask portion for enclosing the nose of the patient, an oxygen reserve bag for receiving a supply of oxygen from an external source, a one-way valve for allowing the passage of oxygen in only one direction from the reserve bag to the mask, and a one-way flap to allow the patient's expired gases to flow out of the mask without allowing atmospheric gases back into the mask. | 09-25-2014 |
20150020809 | PASSENGER OXYGEN MASK AND BREATHING BAG FOR AN OXYGEN MASK - The invention relates to a passenger oxygen mask for the emergency supply of oxygen in an aircraft, with a breathing bag which is provided on the entry side with a tube for the oxygen supply, wherein the tube and the breathing bag consist of polyurethane. The invention further relates to a breathing bag, with which a flow indicator is integrated into the connection piece. | 01-22-2015 |
20160001025 | PORTABLE MANUAL VENTILATION DEVICE - A portable, compact closed circuit ventilation device for manual ventilation of a patient undergoing a surgical or medical procedure that requires sedation as well as emergency management of respiratory failure. One example embodiment includes a closed breathing circuit having a manually squeezable bag, a carbon dioxide absorption canister, a plurality of valves, a gas port and a plurality of sensors for measuring Tidal Volume (TV), Peak Airway Pressure (PAP) and End Tidal CO2 (ETCO2). Another example embodiment includes an open breathing circuit having a bag, valves and sensors. A monitor displays the sensor measurements during the respiratory phases. In a spontaneously breathing patient the device may be used to assess the adequacy of patient's respiratory efforts. During manual or assisted ventilation, the monitor assures safe and efficacious ventilation by the closed breathing circuit. | 01-07-2016 |
20160015919 | SYSTEMS AND METHODS FOR PROVIDING LOW-NOISE POSITIVE AIRWAY PRESSURE - The application discloses a noise attenuating system ( | 01-21-2016 |
20160051779 | PROCESS FOR CHECKING THE FUNCTION OF A RESPIRATION SYSTEM - The function of a respiration system, with a patient port ( | 02-25-2016 |
20160067435 | Endopharyngeal airway device and kit and method of use - A kit for ventilating a patient incapable of normal ventilation with current anesthetic techniques due to a risk for airway obstruction in surgical procedures requiring conscious sedation monitored anesthesia care (MAC). Includes a single-lumen endopharyngeal nasal tube with an eye shaped opening at its distal end and a cylindrical proximal end used as an adaptor for anesthetic applications such as positive airway pressure via Jackson-Reese modified ambu-bag or other various anesthesiology applications. Contiguous to the distal end of the nasal tube is an end-tidal CO2 monitoring port (ETCO2). On the distal end of the flexible nasal ventilation tube is an eye opening allowing air flow to the posterior pharynx. The kit further includes a modified Jackson-Reese ambu bag which allows for controlled airflow to the patient during a procedure. | 03-10-2016 |
20160136372 | BREATHING APPARATUS AND METHOD FOR THE USE THEREOF - A breathing assistance apparatus includes an inner volumetric member pressurizable from a first pressure to a second pressure and an outer volumetric member surrounding at least a portion of the inner expandable volumetric member. The inner volumetric member pressurizes the outer volumetric member as the inner volumetric member is pressurized from the first pressure to the second pressure. In another embodiment, a breathing assistance apparatus includes exhalation and inhalation chambers with respective biasing members providing for the exhalation chamber to apply a pressure to the inhalation chamber and thereby provide assisted inhalation. Methods for assisting breathing are also provided. | 05-19-2016 |
20160167753 | Air Bubble | 06-16-2016 |
128205140 | Means for adjusting gas volume delivered to user from bag, bellows, or bulb during inflation-deflation cycle | 14 |
20080210238 | Manual resuscitators - A manual squeeze bag resuscitator has a strap assembly extending around its central portion. The length of the strap assembly is adjustable so that it can limit the diameter of the bag and hence limit its effective volume, such as for use with smaller patients. | 09-04-2008 |
20090241959 | MANUAL VENTLIATION OR RESUSCITATION DEVICE - A manual ventilation or resuscitation device is provided. The body of the device has rigid panels that encompass a sealed volume and are movable with respect to each other. The body has a displacement in a direction of a hand displacement and at least one other direction. A size adjuster adjusts the body displacement(s) between the states. A frequency adjuster adjusts the time to restore the volume or to adjust the time to compress the volume. The body provides an ergonomic fit to a user's hand, which reduces fatigue. The volume and/or frequency adjustments provide a user with reliance on a more or less constant tidal volume and tidal rate. Such adjustments allow usage of the device on any patient, regardless of individual factors such as physical condition, body/lung size, age and sex. Multiple devices could easily be stacked or nested with each other, which reduces storage space. | 10-01-2009 |
20100132709 | VOLUME-ADJUSTABLE MANUAL VENTILATION DEVICE - Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed. | 06-03-2010 |
20100263670 | Resuscitator - A resuscitator with a rigid top plate, a rigid bottom plate and a rigid bottom plenum assembly. The top plate is hingeldy joined at its forward end to the bottom plate. A flexible accordion member is located between the top plate and the bottom assembly forming a standard air pump. When a person pushes down on the top plate, air is forced out of and outflow tube located on the top plate. An internal spring returns the top plate to its original position and in doing so causes air to be drawn into the plenum assembly. A top plate travel limiting member, such as a cord, includes a plurality of spaced protuberances that act as restraining members that can be retained under a slot in the side of the plenum assembly thereby adjusting the travel distance of the accordion member and controlling the resulting volume of air output to a patient being resuscitated. | 10-21-2010 |
20110120472 | ADJUSTABLE VOLUME MANUAL RESUSCITATION BAG ASSEMBLY - An adjustable volume control manual resuscitation bag assembly includes a resuscitation bag, a volume control knob, a traction assembly operating in response to adjustment of the control knob, and a follower assembly including a bag compression limiting member and a follower which are moved in response to operation of the traction assembly to adjust and limit the volume of gas delivered by compression of the bag. | 05-26-2011 |
20110168180 | ADJUSTABLE VALVE - Adjustable valve, comprising a valve housing and a spindle, provided with a rotary knob, which via a threaded connection is rotatably received in the valve housing, furthermore comprising a valve biased against a valve seat of the valve housing by means of a helical spring, the helical spring being coupled to an axle of the knob, so that by rotation of the knob the spring length can be set to control the closing force on the valve. The threaded connection is provided with varying pitch. The helical spring can have a non-linear spring characteristic, while the variation in the pitch of the screw thread is tuned to the spring characteristic, such that the closing force varies linearly with the rotation of the rotary knob. | 07-14-2011 |
20120097166 | OXYGEN BREATHING DEVICE WITH INTEGRATED FLEXIBLE BUFFER - The invention relates to an oxygen breathing device, including a casing, said casing accommodating in a non-activated condition an oxygen source, in particular a chemical oxygen generator or an oxygen pressure tank, a starter device for initiating a flow of oxygen out of said oxygen source, a buffer connected to said oxygen source, said buffer being adapted to temporarily store oxygen produced in said oxygen source, at least one oxygen mask connected via an oxygen supply line to said buffer wherein a flexible buffer is provided in the oxygen breathing device and connected to the oxygen source. | 04-26-2012 |
20120222677 | NOVEL SELF-INFLATING BAG WITH SPECIFIC COMPRESSION MARKS FOR PEDIATRIC AND ADOLESCENT RESUSCITATION - There is provided a novel self-inflating bag with specific compression marks for pediatric and adolescent resuscitation. The self-inflating bag provides various different range of accurate tidal volume depending on different size or weight of patient by marking compression points on the self-inflating bag. | 09-06-2012 |
20120272965 | VOLUME-ADJUSTABLE MANUAL VENTILATION DEVICE - Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. | 11-01-2012 |
20130092166 | Manual emergency resuscitator with pre-defined volume control - A manual emergency resuscitator uses a volume control system having pre-defined setting to accommodate patients of different sizes. An upper plate | 04-18-2013 |
20130125894 | VOLUME-ADJUSTABLE MANUAL VENTILATION DEVICE - Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed. | 05-23-2013 |
20140318544 | RESUSCITATOR DEVICE - A manually actuated, self-inflating bag valve mask provides users with a positive pressure ventilation device that reliably provides a proper tidal volume to the patient and controls the rate of ventilation of the patient. The bag valve mask is lightweight, compact, durable, and quickly deployable in the field. The device is preferably operable with one hand and can be configured for use in low-light environments. | 10-30-2014 |
20140318545 | INFLATION CONTROL VALVES FOR RESUSCITATOR DEVICES AND RESUSCITATOR DEVICES - Resuscitator devices including inflation control devices and the inflation control valves can prevent an excessive number of breaths per minute during manual resuscitation from being delivered to a patient. The inflation control valves are inlet valves for a resuscitator device having a flexible chamber that extends from a first end to a second end, the second end being configured to attach to an airway adjunct. The valve housing may be configured to be disposed about the first end and to receive air for inflating the flexible chamber, the valve housing being partially disposed within the flexible chamber. The inflation control member may be configured to control inflation rate of the flexible chamber, the inflation control member being disposed within the valve housing and movable with respect to the valve housing. | 10-30-2014 |
20180021533 | ADJUSTABLY CONTROLLING RESCUE OR ASSISTED BREATHS | 01-25-2018 |
128205150 | Held in pressurizable housing | 1 |
20080314386 | Ventilation device for reducing hyperventilation - A ventilation device is disclosed including a self-inflating bag which when compressed produces an outgoing flow, an inlet and an outlet and at least one valve connected to the inlet and/or outlet. The valve is disposed to control the flow out of the air outlet. One or more sensors positioned to sense air flow through the inlet or outlet produce outputs that are used by a controller to control opening and closing of the at least one valve to reduce hyperventilation. | 12-25-2008 |
128205160 | Biased to contracted or expanded position by mechanical means (e.g., weight, spring, etc.) | 3 |
20130118498 | BREATHING APPARATUS AND METHOD FOR THE USE THEREOF - A breathing assistance apparatus includes an inner volumetric member pressurizable from a first pressure to a second pressure and an outer volumetric member surrounding at least a portion of the inner expandable volumetric member. The inner volumetric member pressurizes the outer volumetric member as the inner volumetric member is pressurized from the first pressure to the second pressure. In another embodiment, a breathing assistance apparatus includes exhalation and inhalation chambers with respective biasing members providing for the exhalation chamber to apply a pressure to the inhalation chamber and thereby provide assisted inhalation. Methods for assisting breathing are also provided. | 05-16-2013 |
20130139819 | SLEEP APNEA TREATMENT DEVICE - A sleep apnea treatment device that includes a first chamber, a second chamber, and an energy storage component. The first chamber receives a patient's exhaled breath, which causes the second chamber to be expanded with fresh air that is drawn in during expansion of the second chamber. Energy from the patient's exhaled breath is stored in the energy storage component and then used to expel the air in the second chamber under positive pressure into the patient's airway. The first chamber can expand during the patient's exhaled breath which causes a plate or other movable member to simultaneously expand the second chamber to thereby draw in the fresh air that is subsequently expelled to the patient using the energy in the energy storage component. | 06-06-2013 |
20140000613 | Apparatus, System and Method of Remotely Actuating a Manual Ventilation Bag | 01-02-2014 |
128205170 | Rebreathing bag or bellows | 3 |
20100132710 | APPARATUS AND METHOD FOR NON-INVASIVELY MEASURING CARIDAC OUTPUT - Apparatus and methods for non-invasively determining cardiac output using partial re-breathing techniques are disclosed in which the apparatus is constructed with an instantaneously adjustable deadspace for accommodating differences in breathing capacities of various patients. The apparatus is constructed of inexpensive elements, including a single two-way valve which renders the apparatus very simple to use and inexpensive so that the unit may be readily disposable. The method of the invention provides a novel means of estimating cardiac output based on alveolar CO | 06-03-2010 |
20120240935 | MEDICAL BREATHING MASK - A facial breathing mask suitably for regulating the carbon dioxide concentration in the inspired air, the facial mask comprising an air chamber with an opening through which a user can breathe. At least a part of the air chamber is flexible and/or collapsible and comprises one or more of semi-permeable membranes separating the air chamber and a surrounding atmosphere. | 09-27-2012 |
20130112204 | PROCESS FOR CHECKING THE FUNCTION OF A RESPIRATION SYSTEM - The function of a respiration system, with a patient port ( | 05-09-2013 |