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Class 128/205.16 - Biased to contracted or expanded position by mechanical means (e.g., weight, spring, etc.)


Subclass of Class 128 - Surgery
Definition: Subject matter where in the bag, bellows, or squeeze bulb
No. of patents: 65
Last issue date: 07/01/2008


1    
NumberTitleIssue Date
7392805Method and apparatus for manual delivery of volume and pressure-control artificial ventilation
A combination of a bellows structure (12), volume restrictor, and pressure restrictor for use on a hand-operated resuscitator is provided to enable delivery of ventilation within specific volume and pressure limitations specified by the operator. The bellows ...
07/01/2008
7360538Oxygen therapy face mask
An oxygen therapy face mask has a face engaging portion and a valve assembly connected thereto. The valve assembly has a first passage communicating with the interior of the face engaging portion from which gas can flow into the face engaging portion and into a pati...
04/22/2008
7357033Manual resuscitators with integral manometer
A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differenti...
04/15/2008
7351245Apparatus and method for dislodging object from throat
An apparatus for sucking out an object stuck in a person's throat, comprising hollow first and second bellows elements each having an orifice with a one-way valve and an exit valve, a tube structure comprising first and second legs having free distal ends outside th...
04/01/2008
7337777Airway stabilizer for resuscitation
A simple and compact device permits a single rescuer to quickly place a prone patient's airway in an optimal, open configuration. The device consists of a reversibly collapsed neck support that can rapidly be placed underneath the neck of an unconscious patient lyin...
03/04/2008
7284554Continuous positive airway pressure device
A continuous positive pressure device which includes an air reservoir connected to a delivery device (e.g. mask or mouthpiece) by an air supply hose; the reservoir includes a rigid protective housing and a plate which applies uniform pressure on the reservoir irresp...
10/23/2007
7174891CPR mask with compression timing metronome and methods
A facial mask includes a mask body that is adapted to be coupled to a patient's face. A valve system is coupled to the mask body to permit the inflow of respiratory gasses into the mask body and to permit the outflow of respiratory gasses from the mask body. A metro...
02/13/2007
7121278Method and apparatus for manual delivery of volume and pressure-control artificial ventilation
A combination of a bellows structure (12), volume restrictor, and pressure restrictor for use on a hand-operated resuscitator is provided to enable delivery of ventilation within specific volume and pressure limitations specified by the operator. The bellows ...
10/17/2006
7096866Inexsufflator
A manual inexsufflator including a standard mechanical ventilator, a medical suction unit, and a piston-like sliding valve mechanism which connects a patient ventilation interface with either the ventilator or the suction unit. By sliding the valve mechanism in and ...
08/29/2006
7096869Device and method for maintaining an airway
A device and method for tilting an unconscious patient's head rearward and lifting his chin to prevent an airway obstruction from developing during intravenous anesthesia when the patient is unconscious but still breathing spontaneously during surgery. The invention...
08/29/2006
7089940Balanced valve device and breathing apparatus comprising such valve device
A valve device, particularly for a breathing regulator for divers, including an inlet chamber which can be connected to a source of gas under super-atmospheric pressure, and an outlet chamber which is under a regulated pressure. A seating, which is movable under the...
08/15/2006
7066177Exhalation valves
An exhalation valve (10) is disclosed for use with an exhalation port (14) of a respiratory circuit. The exhalation valve comprises a hermetically sealed gas chamber (20,120), a gas inlet (22,122) for supplying gas to the gas chamber, and...
06/27/2006
7051596Manual resuscitators with integral manometer
A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differenti...
05/30/2006
7047976Medical device for overcoming airway obstruction
A medical device for overcoming upper airway obstruction when a patient is placed in supine position. A cradle receives the patient's head, and the patient's head rests on and is secured to the cradle. Specifically, the head rests upon a first portion. The weight of...
05/23/2006
6988499Mechanical resuscitator
An improved resuscitator including a pump, a base member for positioning over the sternum area of the patient's chest, coupling structure for allowing gas to pass from a passageway of the base member to the patient's lungs, and seal structure for forming a gas-tight...
01/24/2006
6929006Device and process for metering breathing gas
A respirator with a tidal volume-measuring device (6) between a respiration bag (8) and a patient adapter (2) provides accurate metering of the tidal volume. The device includes a first pressure-measuring device (4) and a breathing gas in...
08/16/2005
6926007Medical device for overcoming airway obstruction
A medical device for overcoming airway obstruction featuring a flat rectangular support base with a support frame attached by a pivoting means. A T-band, so named for its shape and the positioning of its three straps, attaches to the support frame when the T-band is...
08/09/2005
6910484Constant pressure generator
A constant pressure generator has a variable volume fluid reservoir formed by a container having fixed walls which cooperate to define a cross-sectional area of the container perpendicular to an axis that varies with location along the axis and an end wall arranged ...
06/28/2005
6675799Device and method of isolating bias flow
An isolation device is disclosed. The isolation device may have a movable partition and a housing disposed about the movable partition. The isolation device may have a partition biaser joined to the partition, and a CO2 scrubber. A method of de...
01/13/2004
6408848Method and apparatus for conveniently setting a predetermined volume for re-breathing
The present invention provides a method and device for conveniently setting the volume of a variable-length tubing loop used in a re-breathing circuit to various selected predetermined values. The device includes a card of an inelastic, disposable materia...
06/25/2002
6328036Anesthetic apparatus and method for operating same
An anesthetic apparatus has a control unit and a breathing circuit with a connector for fresh gas, a bellows system and an outlet valve. The anesthetic apparatus operates at least as an open system, the connector then constituting an inspiratory part of t...
12/11/2001
6283121Manual pump and Ambu bag
An improved manual pump is disclosed. The manual pump comprises a pair of side plates (10), a flexible cylindrical wall (15), a pump chamber (21), an axial shaft (11), a coil spring (12) and a pair of handle bars (16) secured to the side plates (10). When...
09/04/2001
6253767Gas concentrator
A gas concentrator adaptable for use within a breathing apparatus, particularly for use within a resuscitator, Trach T, patient tee, or a high oxygen concentration mask. The gas concentrator distributes gas into the resuscitating device through a substant...
07/03/2001
5996580Personal emergency breathing system with locator for supplied air respirators and shock resistant filter mounting
An air filtration unit is carried within a closed canister whereby upon removal of the cover, ambient air may be filtered through the filtration unit and supplied to a user. In one form, the canister is applied to a fitting of a fireman's gas mask or hose...
12/07/1999
5819730Device for administering pharmaceutical substances
The present invention relates to a device for administering pharmaceutical substances by spraying the contents of a container formed of plastics material. The device comprises a pair of members between which is supported the container, the members being m...
10/13/1998
5787880Resuscitation device
A resuscitation device including an air delivery device which has two rigid walls moveable toward and away from each other, is substantially rectangular, but may have rounded corners; a scissor type mechanism is employed to maintain parallelism of the wal...
08/04/1998
5769072Anesthetic system with multiple valve-controlled bellows
An anesthetic system has an external gas reservoir and three gas bellows arranged in the external gas reservoir to alternatingly collect or deliver breathing gas from and to a ventilator unit. In this manner a completely closed system is achieved with min...
06/23/1998
5738089Equipment for assisting respiration and system for assisting respiration
A system for assisting respiration which includes a flat, belt-shaped, tube made of rubber, and having a valve for introducing air. The flat tube has an outer side comprising a layer of a rubber sheet having a high modulus of elasticity and an inner side ...
04/14/1998
5711296Continuous positive airway pressure system
A passive continuous positive airway intratracheal pulmonary ventilation system which includes an inspiration limb and an expiration limb which are pressure balanced by inflatable bags. An intratracheal pulmonary ventilation system is provided which inclu...
01/27/1998
5664564Aspirating/ventilating apparatus and method
A ventilating and aspirating assembly comprising an aspirating catheter tube internally disposed within and coextensive with a surrounding flexible collapsible sterility preserving film envelope, a connector by which ventilating air is involuntarily deliv...
09/09/1997
5645056Variable volumetric inflatable pump
A pump that can be adjusted to vary the volumetric output of the pump. The pump has a flexible housing that defines an inner pump chamber. The flexible housing can be collapsed by the user to discharge the contents of the inner chamber. Integral with the ...
07/08/1997
5640952Personal emergency breathing system for supplied air respirators
The personal emergency breathing system includes a canister with a filtration unit for supplying filtered ambient air to a gas mask. The mask includes a fitting from which a regulator and hose coupled to an air tank may be removed after exhaustion of the ...
06/24/1997
5628305Universal ventilation device
The universal ventilation device, UVD, of this invention is designed to separate the gas (and bodily fluids) of the victim from that of the rescuer and to deliver a known, adjustable volume of gas at a known, adjustable rate. The UVD can be used without o...
05/13/1997
5619987Semi-closed rebreathing apparatus with water removing pump
A respiration system including a carbon dioxide absorber, wherein any water located in the exhaled gases, or present in the system due to leakage, is removed from the system before the exhaled gases reach the carbon dioxide absorber. The respiration syste...
04/15/1997
5484270Pump particularly useful in respirator apparatus and exhalation valve assembly therefor
A reciprocating pump particularly useful in ventilator apparatus includes a piston reciprocatable axially within a cylinder and dividing its interior into an inlet chamber and an outlet chamber, a wall fixed within the inlet chamber, and a drive housing f...
01/16/1996
5388576Inflatable resuscitation device
A pulmonary resuscitator is set forth of the type having a compressible bladder to be depressed to supply air to a mask. Both the compressible bladder and mask have integral therewith a network of inflatable tubes which when pressurized resiliently rigidi...
02/14/1995
5315988Reactive, closed-circuit underwater breathing apparatus
This invention comprises a tunable underwater breathing apparatus (UBA) in hich the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the inertance component of the UBA impedance. The principles of the pre...
05/31/1994
5313938Valved resuscitation pump having secretion removal means
A cardiopulmonary resuscitating pump, comprising, a housing having a top wall (20), a bottom wall (21) and a side wall (22) in the form of a bellows which is capable of contracting and expanding under the application and release of an externally applied p...
05/24/1994
5305739Inflatable resuscitation device
A pulmonary resuscitator is set forth of the type having a compressible bladder to be depressed to supply air to a mask. Both the compressible bladder and mask have integral therewith a network of inflatable tubes which when pressurized resiliently rigidi...
04/26/1994
5222491Temporary patient ventilator
A temporary patient ventilator is a modified version of the widely used air-mask-bag-unit (AMBU). The modified AMBU has guy wires attached to the inside resilient walls of the airbag which are pulled to collapse the airbag. A drive is used to alternately ...
06/29/1993
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