US Patent No: 4,259,951

Number of patents in Portfolio can not be more than 2000

Dual valve for respiratory device

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A dual valve for an inhalation device which permits air to be withdrawn from the device upon inhalation but which prevents the flow of air into the device upon exhalation.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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
SHERWOOD MEDICAL COMPANYST LOUIS, MO10

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chernack, Milton P West Hempstead, NY 20 491
Greenberg, Mishel New Hyde Park, NY 4 107

Cited Art Landscape

  • No Cited Art to Display

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (10)
* 4,574,797 Diaphragm and exhaust valve for second stage regulator 8 1983
* 4,579,124 Air flow measuring instrument for speech therapy 9 1984
* 4,878,502 Breathing sensor 16 1986
* 4,809,706 Incentive inhalation spirometer apparatus 33 1988
* 6,679,250 Combination inhalation therapeutic and exhalation measuring device 38 2002
* 6,955,169 Inhaler device 3 2002
* 2004/0000,307 Inhaler device 0 2002
7,077,127 Flip top valve for dry snorkels 3 2005
* 2006/0254,582 Flip top valve for dry snorkels 3 2006
* 8,382,644 Device for diaphragmal resistive breathing training 1 2010
 
Charlotte-Mecklenburg Hospital Authority (7)
7,547,285 Device and method for collection of exhaled alveolar breath condensate 26 2004
7,828,741 Utilizing lipopolysaccharide in exhaled breath condensate to diagnose gram negative pneumonia 19 2005
* 2005/0208,614 Utilizing lipopolysaccharide in exhaled breath condensate to diagnose gram negative pneumonia 4 2005
* 2007/0100,250 Device and method for collection of exhaled alveolar breath condensate 9 2006
* 2007/0073,183 Device and method for collection of exhaled alveolar breath condensate 24 2006
8,491,494 Disposable hand-held device for collection of exhaled breath condensate 0 2007
* 2007/0203,424 Disposable hand-held device for collection of exhaled breath condensate 2 2007
 
PAUL RITZAU PARI-WERK GMBH (1)
* 5,280,784 Device in particular and inhalating device for treating the lung and the respiratory tracts 186 1992
 
NOVARTIS AG (3)
* 8,408,200 Flow resistance modulated aerosolized active agent delivery 10 1999
* 2003/0168,057 Electronically controllable aerosol delivery 12 2002
* 2007/0083,677 Valves, devices, and methods for endobronchial therapy 5 2006
 
VISIOMED GROUP LIMITED (1)
* 5,385,140 Aerosol inhalation device 75 1993
 
NOVARTIS PHARMA AG (6)
6,655,379 Aerosolized active agent delivery 60 1999
6,606,992 Systems and methods for aerosolizing pharmaceutical formulations 58 2000
7,185,651 Flow regulator for aerosol drug delivery and methods 6 2003
* 2004/0000,309 Flow regulator for aerosol drug delivery and methods 0 2003
* 2005/0016,533 Systems and methods for aerosolizing pharmaceutical formulations 9 2003
* 2005/0090,798 Aerosolized active agent delivery 6 2003
 
COVIDIEN LP (1)
9,289,573 Ventilator pressure oscillation filter 0 2012
 
Janatpour, Nina (1)
* 7,448,387 Tracheostomy tube connector 10 2005
 
CLINICAL TECHNOLOGIES, INC. (4)
6,363,932 Aerosol enhancement device 45 2000
7,204,245 Aerosol enhancement device 11 2001
* 2002/0121,275 Aerosol enhancement device 10 2001
* 2007/0169,774 Aerosol enhancement device 2 2007
 
SENSORMEDICS B.V. (1)
* 5,036,843 Breathing valve 5 1989
 
ADVANCED CIRCULATORY SYSTEMS, INC. (44)
* 5,692,498 CPR device having valve for increasing the duration and magnitude of negative intrathoracic pressures 55 1995
* 5,730,122 Heart failure mask and methods for increasing negative intrathoracic pressures 65 1996
* 6,062,219 Apparatus and methods for assisting cardiopulmonary resuscitation 43 1997
* 6,029,667 Heart failure mask and methods for increasing negative intrathoracic pressures 40 1998
6,234,985 Device and method for performing cardiopulmonary resuscitation 61 1998
* 6,155,257 Cardiopulmonary resuscitation ventilator and methods 99 1998
6,224,562 Methods and devices for performing cardiopulmonary resuscitation 70 1998
6,312,399 Stimulatory device and methods to enhance venous blood return during cardiopulmonary resuscitation 66 1999
6,425,393 Automatic variable positive expiratory pressure valve and methods 31 1999
6,463,327 Stimulatory device and methods to electrically stimulate the phrenic nerve 122 2000
6,526,973 Apparatus and methods for assisting cardiopulmonary resuscitation 25 2000
6,604,523 Apparatus and methods for enhancing cardiopulmonary blood flow and ventilation 30 2001
7,210,480 Shock treatment systems and methods 18 2002
6,986,349 Systems and methods for enhancing blood circulation 22 2002
* 2004/0016,428 Systems and methods for enhancing blood circulation 9 2002
6,863,656 Stress test devices and methods 30 2002
7,174,891 CPR mask with compression timing metronome and methods 15 2003
7,204,251 Diabetes treatment systems and methods 15 2003
* 2005/0199,237 Diabetes treatment systems and methods 27 2003
7,044,128 CPR demonstration device and methods 9 2003
* 2004/0200,473 CPR demonstration device and methods 9 2003
7,195,012 Systems and methods for reducing intracranial pressure 13 2003
7,185,649 Systems and methods for increasing cerebral spinal fluid flow 13 2003
* 2004/0211,416 Systems and methods for increasing cerebral spinal fluid flow 15 2003
7,082,945 Ventilator and methods for treating head trauma 13 2003
6,938,618 Bag-valve resuscitation for treatment of hypotention, head trauma, and cardiac arrest 20 2003
* 2005/0056,277 Bag-valve resuscitation for treatment of hypotention, head trauma, and cardiac arrest 3 2003
* 2004/0211,417 Ventilator and methods for treating head trauma 13 2003
7,195,013 Systems and methods for modulating autonomic function 36 2004
* 2004/0200,474 Systems and methods for modulating autonomic function 16 2004
7,836,881 Ventilator and methods for treating head trauma and low blood circulation 10 2004
6,935,336 Systems and methods to facilitate the delivery of drugs 17 2004
7,766,011 Positive pressure systems and methods for increasing blood pressure and circulation 9 2005
7,275,542 Bag-valve resuscitation for treatment of hypotension, head trauma, and cardiac arrest 14 2005
8,011,367 CPR devices and methods utilizing a continuous supply of respiratory gases 8 2007
* 2007/0221,222 CPR DEVICES AND METHODS UTILIZING A CONTINUOUS SUPPLY OF RESPIRATORY GASES 19 2007
* 2007/0277,826 SYSTEMS AND METHODS FOR MODULATING AUTONOMIC FUNCTION 8 2007
* 2008/0047,555 BAG-VALVE RESUSCITATION FOR TREATING OF HYPOTENSION, HEAD TRAUMA, AND CARDIAC ARREST 8 2007
8,151,790 Volume exchanger valve system and method to increase circulation during CPR 6 2007
* 2008/0257,344 VOLUME EXCHANGER VALVE SYSTEM AND METHOD TO INCREASE CIRCULATION DURING CPR 7 2007
7,682,312 System for sensing, diagnosing and treating physiological conditions and methods 21 2007
8,408,204 Positive pressure systems and methods for increasing blood pressure and circulation 4 2010
8,985,098 CPR volume exchanger valve system with safety feature and methods 0 2012
9,352,111 Systems and methods to increase survival with favorable neurological function after cardiac arrest 0 2014
 
SALTER LABS (3)
6,631,721 Nebulizer mouthpiece and accessories 52 2001
6,904,906 Nebulizer mouthpiece and accessories 29 2003
* 2004/0040,557 Nebulizer mouthpiece and accessories 2 2003
 
Ventific Holdings Pty Ltd (1)
9,308,344 Respiratory valve apparatus 0 2011
 
Sensormedics Corporation (1)
* 4,546,793 Breath switch 20 1982
 
COOK MEDICAL TECHNOLOGIES LLC (2)
* 7,921,874 Flow variation valve assembly 2 2005
* 2006/0118,189 Flow variation valve assembly 19 2005
 
MEDICAL DEVELOPMENTS INTERNATIONAL LTD (1)
8,905,020 Spacer and components therefor 2 2011
 
RESQSYSTEMS, INC. (1)
9,238,115 Systems and methods for therapeutic intrathoracic pressure regulation 0 2012
 
MALLINCKRODT MEDICAL, INC. (1)
6,334,441 Phonation valve for breathing tube 45 1998
 
Thayer Medical Corporation (1)
6,202,643 Collapsible, disposable MDI spacer and method 18 1999
 
RADCLIFF, JANET H., HOSTETTER, GORDON R., ROGERS, MEYRIK K, BAIR, GREGG M. (1)
* 5,813,401 Nebulizer automatic control valve 30 1996
 
R.A.M.M., LLC (1)
* 2010/0318,218 Pill Dispenser and Method 5 2010
 
PFAUDEVIL HOLDINGS CO. (1)
* 4,776,776 Small pump valve plate assembly 25 1987
 
CIS-US, INC., A CORP OF MA (1)
4,598,704 Aerosol inhalation device 24 1985
 
DRAGERWERK AKTIENGESELLSCHAFT (1)
* 4,564,021 Mouthpiece for a breath-alcohol measuring device 12 1985
 
CAREFUSION 207, INC. (1)
9,149,598 Pressure relief in a respiratory assistance system 0 2012
 
MONAGHAN MEDICAL CORPORATION A CORP. OF NY (1)
* 4,538,620 Inhalation valve 9 1983
 
CPRX LLC (5)
* 2003/0037,784 Systems and methods for enhancing blood circulation 14 2002
* 2004/0211,415 Systems and methods for reducing intracranial pressure 16 2003
* 2005/0016,541 Systems and methods to facilitate the delivery of drugs 3 2004
* 2008/0108,905 SYSTEM FOR SENSING, DIAGNOSING AND TREATING PHYSIOLOGICAL CONDITIONS AND METHODS 13 2007
* 2010/0179,442 SYSTEM FOR SENSING, DIAGNOSING AND TREATING PHYSIOLOGICAL CONDITIONS AND METHODS 6 2010
 
FISONS LIMITED (1)
* 6,109,261 Powder inhaler with breath flow regulation valve 39 1998
 
Fisons plc (1)
* 5,727,546 Powder inhaler with breath flow regulation valve 80 1996
 
Trudell Medical International (1)
* 4,770,413 Breathing exercise device 41 1987
 
E-Top Union Inc. (1)
* 9,180,340 Respiratory training assembly 0 2013
 
Pari GmbH Spezialisten für effektive Inhalation (2)
* 7,255,106 Inhalation mask 6 2002
* 2003/0037,788 Inhalation mask 5 2002
 
Trudell Medical Limited (1)
* 4,470,412 Inhalation valve 125 1982
 
Whitman Medical Corporation (1)
* 4,391,283 Incentive spirometer 34 1981
 
Hudson Oxygen Therapy Sales Company (1)
* 4,560,519 Self-contained nebulizer and system 26 1983
* Cited By Examiner