US Patent No: 4,259,951

Number of patents in Portfolio can not be more than 2000

Dual valve for respiratory device

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Importance

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Abstract

A dual valve for an inhalation device which permits air to be withdrawn from the device upon inhalation but which prevents the flow of air into the device upon exhalation. The valve includes a central opening in communication with the device, and a plurality of openings about the central opening in communication with the surrounding environment. The valve also includes a central flexible flapper valve which extends across and controls the flow of air through the central opening, and a plurality of outer flexible flapper valves which extend across and control the flow of air through the outer openings. In use, inhalation by a user opens the central flexible flapper valve to allow the free flow of air from the inhalation device while the outer flapper valves remain closed. Correspondingly, exhalation by the user opens the outer flexible flapper valves from their seats to exhaust air to the surrounding atmosphere while the central flexible valve remains closed.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SHERWOOD MEDICAL COMPANYST LOUIS, MO36

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chernack, Milton P West Hempstead, NY 20 381
Greenberg, Mishel New Hyde Park, NY 4 92

Cited Art

Patent Info (Count) # Cites Year
 
OMNISHELL 1300 FOUNTAIN SQUARE SOUTH, CINCINNATI, OH 45202 A CORP OF DE (1)
4,182,347 Air inhalation flow rate measuring device 9 1978

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
ADVANCED CIRCULATORY SYSTEMS, INC. (31)
5,692,498 CPR device having valve for increasing the duration and magnitude of negative intrathoracic pressures 43 1995
5,730,122 Heart failure mask and methods for increasing negative intrathoracic pressures 41 1996
6,062,219 Apparatus and methods for assisting cardiopulmonary resuscitation 34 1997
6,029,667 Heart failure mask and methods for increasing negative intrathoracic pressures 26 1998
6,234,985 Device and method for performing cardiopulmonary resuscitation 41 1998
6,155,257 Cardiopulmonary resuscitation ventilator and methods 51 1998
6,224,562 Methods and devices for performing cardiopulmonary resuscitation 50 1998
6,312,399 Stimulatory device and methods to enhance venous blood return during cardiopulmonary resuscitation 42 1999
6,425,393 Automatic variable positive expiratory pressure valve and methods 22 1999
6,463,327 Stimulatory device and methods to electrically stimulate the phrenic nerve 53 2000
6,526,973 Apparatus and methods for assisting cardiopulmonary resuscitation 17 2000
6,604,523 Apparatus and methods for enhancing cardiopulmonary blood flow and ventilation 19 2001
7,210,480 Shock treatment systems and methods 9 2002
6,986,349 Systems and methods for enhancing blood circulation 13 2002
6,863,656 Stress test devices and methods 20 2002
7,174,891 CPR mask with compression timing metronome and methods 5 2003
7,204,251 Diabetes treatment systems and methods 5 2003
7,044,128 CPR demonstration device and methods 5 2003
7,195,012 Systems and methods for reducing intracranial pressure 7 2003
7,185,649 Systems and methods for increasing cerebral spinal fluid flow 7 2003
7,082,945 Ventilator and methods for treating head trauma 7 2003
6,938,618 Bag-valve resuscitation for treatment of hypotention, head trauma, and cardiac arrest 14 2003
7,195,013 Systems and methods for modulating autonomic function 14 2004
7,836,881 Ventilator and methods for treating head trauma and low blood circulation 2 2004
6,935,336 Systems and methods to facilitate the delivery of drugs 11 2004
7,766,011 Positive pressure systems and methods for increasing blood pressure and circulation 3 2005
7,275,542 Bag-valve resuscitation for treatment of hypotension, head trauma, and cardiac arrest 6 2005
8,011,367 CPR devices and methods utilizing a continuous supply of respiratory gases 1 2007
8,151,790 Volume exchanger valve system and method to increase circulation during CPR 0 2007
7,682,312 System for sensing, diagnosing and treating physiological conditions and methods 4 2007
8,408,204 Positive pressure systems and methods for increasing blood pressure and circulation 0 2010
 
NOVARTIS PHARMA AG (3)
6,655,379 Aerosolized active agent delivery 34 1999
6,606,992 Systems and methods for aerosolizing pharmaceutical formulations 23 2000
7,185,651 Flow regulator for aerosol drug delivery and methods 2 2003
 
CHARLOTTE-MECKLENBURG HOSPITAL AUTHORITY (2)
7,547,285 Device and method for collection of exhaled alveolar breath condensate 6 2004
7,828,741 Utilizing lipopolysaccharide in exhaled breath condensate to diagnose gram negative pneumonia 3 2005
 
CLINICAL TECHNOLOGIES, INC. (2)
6,363,932 Aerosol enhancement device 24 2000
7,204,245 Aerosol enhancement device 6 2001
 
SALTER LABS (2)
6,631,721 Nebulizer mouthpiece and accessories 33 2001
6,904,906 Nebulizer mouthpiece and accessories 14 2003
 
CIS-US, INC., A CORP OF MA (1)
4,598,704 Aerosol inhalation device 24 1985
 
COOK MEDICAL TECHNOLOGIES LLC (1)
7,921,874 Flow variation valve assembly 0 2005
 
DRAGERWERK AKTIENGESELLSCHAFT (1)
4,564,021 Mouthpiece for a breath-alcohol measuring device 7 1985
 
FISONS LIMITED (1)
6,109,261 Powder inhaler with breath flow regulation valve 25 1998
 
FISONS PLC (1)
5,727,546 Powder inhaler with breath flow regulation valve 49 1996
 
HUDSON OXYGEN THERAPY SALES COMPANY, A CA CORP. (1)
4,560,519 Self-contained nebulizer and system 24 1983
 
JANATPOUR, NINA (1)
7,448,387 Tracheostomy tube connector 2 2005
 
MALLINCKRODT MEDICAL, INC. (1)
6,334,441 Phonation valve for breathing tube 33 1998
 
MONAGHAN MEDICAL CORPORATION A CORP. OF NY (1)
4,538,620 Inhalation valve 8 1983
 
NOVARTIS AG (1)
8,408,200 Flow resistance modulated aerosolized active agent delivery 0 1999
 
PARI GMBH SPEZIALISTEN FUR EFFEKTIVE INHALATION (1)
7,255,106 Inhalation mask 2 2002
 
PAUL RITZAU PARI-WERK GMBH (1)
5,280,784 Device in particular and inhalating device for treating the lung and the respiratory tracts 126 1992
 
PFAUDEVIL HOLDINGS CO. (1)
4,776,776 Small pump valve plate assembly 22 1987
 
RADCLIFF, JANET H., HOSTETTER, GORDON R., ROGERS, MEYRIK K, BAIR, GREGG M. (1)
5,813,401 Nebulizer automatic control valve 22 1996
 
SENSORMEDICS B.V. (1)
5,036,843 Breathing valve 3 1989
 
SENSORMEDICS CORPORATION (1)
4,546,793 Breath switch 20 1982
 
THAYER MEDICAL CORPORATION (1)
6,202,643 Collapsible, disposable MDI spacer and method 14 1999
 
TRUDELL MEDICAL INTERNATIONAL (1)
4,770,413 Breathing exercise device 20 1987
 
TRUDELL MEDICAL LIMITED (1)
4,470,412 Inhalation valve 88 1982
 
VISIOMED GROUP LIMITED (1)
5,385,140 Aerosol inhalation device 48 1993
 
WHITMAN MEDICAL CORPORATION (1)
4,391,283 Incentive spirometer 24 1981
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (8)
4,574,797 Diaphragm and exhaust valve for second stage regulator 8 1983
4,579,124 Air flow measuring instrument for speech therapy 8 1984
4,878,502 Breathing sensor 16 1986
4,809,706 Incentive inhalation spirometer apparatus 25 1988
6,679,250 Combination inhalation therapeutic and exhalation measuring device 21 2002
6,955,169 Inhaler device 3 2002
7,077,127 Flip top valve for dry snorkels 3 2005
8,382,644 Device for diaphragmal resistive breathing training 0 2010