Medical ventilators

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5307795
SERIAL NO

07778131

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A medical ventilator comprises a ventilator duct having an inlet for respiratory fresh gas. The pressure at which the respiratory fresh gas is supplied to the patient is determined by a driving jet disposed in the ventilator duct at a distance from the inlet so that an intervening column of gas acts as a pneumatic piston. The supply of driving gas to the jet is initially set by a regulator to obtain a desired value of a respiratory parameter, such as the volume of gas ventilating the patient's lungs during the breathing cycle. The volume of gas expelled from the patient's lungs is monitored during operation by detecting means and the regulator is adjusted by a servomotor in response to any change in the measured parameter in order to maintain the parameter at the desired value.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CADUCEUS LIMITEDLONDON2

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chakrabarti, Mihir K Greenford, GB2 4 121
Whitwam, James G London, GB2 4 121

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 4495946 Artificial breathing device 33 1981
* 4596247 Respirator 12 1983
 
UNIVERSITY OF MANITOBA (1)
* 5107830 Lung ventilator device 273 1990
 
SUNRISE MEDICAL HHG INC. (1)
* 4971049 Pressure sensor control device for supplying oxygen 79 1989
 
Synthelabo (1)
* 4537190 Process and device for controlling artificial respiration 55 1982
 
Bunnell Life Systems, Inc. (2)
* 4481944 Apparatus and method for assisting respiration 99 1981
* 4471773 Apparatus and method for delivering medication to patient's respiratory system 35 1983
 
DRIBMED, LTD. (1)
* 4957107 Gas delivery means 220 1988
 
DRAGERWERK AKTIENGESELLSCHAFT (1)
* 4520812 Method and apparatus for controlling a pressure level in a respirator 59 1983
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 2005/0000,519 Ventilator 2 2004
* 2005/0098,178 Ventilator monitor system and method of using same 5 2004
* 2005/0081,855 Patient-ventilator synchronization using dual phase sensors 0 2004
 
GENERAL ELECTRIC COMPANY (2)
* 2008/0276,939 Delta Flow Pressure Regulation 23 2005
* 2008/0230,062 SETTING EXPIRATORY TIME IN MANDATORY MECHANICAL VENTILATION BASED ON A DEVIATION FROM A STABLE CONDITION OF EXHALED GAS VOLUMES 27 2007
 
COVIDIEN LP (16)
8652064 Sampling circuit for measuring analytes 0 2008
8425428 Nitric oxide measurements in patients using flowfeedback 1 2009
8924878 Display and access to settings on a ventilator graphical user interface 2 2009
8335992 Visual indication of settings changes on a ventilator graphical user interface 7 2009
9119925 Quick initiation of respiratory support via a ventilator user interface 0 2010
8453645 Three-dimensional waveform display for a breathing assistance system 2 2010
8499252 Display of respiratory data graphs on a ventilator graphical user interface 4 2010
8443294 Visual indication of alarms on a ventilator graphical user interface 2 2010
8783250 Methods and systems for transitory ventilation support 0 2011
8776792 Methods and systems for volume-targeted minimum pressure-control ventilation 0 2011
8597198 Work of breathing display for a ventilation system 1 2011
8555881 Ventilator breath display and graphic interface 1 2011
8555882 Ventilator breath display and graphic user interface 1 2012
9375542 Systems and methods for monitoring, managing, and/or preventing fatigue during ventilation 0 2012
9358355 Methods and systems for managing a patient move 0 2013
9262588 Display of respiratory data graphs on a ventilator graphical user interface 0 2013
 
Hill-Rom Services, Pte. Ltd. (1)
9180271 Respiratory therapy device having standard and oscillatory PEP with nebulizer 0 2012
 
RESMED LIMITED (3)
* 6910480 Patient-ventilator synchronization using dual phase sensors 55 2000
* 7055522 Patient-ventilator synchronization using dual phase sensors 47 2004
* 7934499 Patient-ventilator synchronization using dual phase sensors 42 2005
 
EUPNEA TECHNOLOGIES, INC. (2)
9345850 Apparatus and method to provide breathing support 0 2014
9468731 Apparatus and method to provide breathing support 0 2016
 
HILL-ROM SERVICES PTE. LTD. (1)
8251876 Breathing exercise apparatus 1 2008
 
SALTER LABS (2)
* 6378520 Variable pressure and flow control for a pneumatically-operated gas demand apparatus 54 1999
* 2009/0199,855 SYSTEM AND METHOD FOR CONSERVING OXYGEN DELIVERY WHILE MAINTAINING SATURATION 37 2005
 
RESMED PARIS (3)
8353292 Breathing assistance apparatus 0 2011
* 2011/0132,363 BREATHING ASSISTANCE APPARATUS 35 2011
9089660 Breathing assistance apparatus 0 2013
 
Event Medical, Inc. (1)
* 2009/0241,960 DUAL HIGH AND LOW PRESSURE BREATHING SYSTEM 1 2008
 
SOCIETE D' APPLICATIONS INDUSTRIELLES MEDICALES ET ELECTRONIQUES (SAIME) (2)
* 7905231 Breathing assistance apparatus 34 2004
* 2006/0272,642 Breathing assistance apparatus 40 2004
 
WESTERN/SCOTT FETZER COMPANY (1)
* 6612307 Oxygen conserver 10 2001
 
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC. (9)
* 5887611 Gas blender 30 1996
* 6390091 Method and apparatus for controlling a medical ventilator 152 1999
6796305 Ventilator monitor system and method of using same 112 2000
6571796 Tracheal pressure ventilation respiratory system 72 2001
7066173 Medical ventilator and method of controlling same 101 2003
* 2004/0003,813 Medical ventilator and method of controlling same 13 2003
7210478 Ventilator monitor system and method of using same 106 2004
8122883 Medical ventilator and method of controlling same 4 2006
* 2007/0000,494 Ventilator monitor system and method of using same 110 2006
 
Event Medical Ltd. (1)
7219666 Ventilator 25 2004
* Cited By Examiner