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Class Information
Number: 600/537
Name: Surgery > Diagnostic testing > Respiratory > Thermistor-type transducer generating electric signal in response to breath flow
Description: Subject matter wherein an electric signal is generated by breath flow past a transducer consisting of a resistor made of a material which has a resistance which varies sharply with a change in temperature.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7608047 Reusable snore/air flow sensor Oct. 27, 2009
7418859 Device for measuring a volume flow with inductive coupling Sep. 2, 2008
RE40470 Body function measuring apparatus Aug. 26, 2008
7390304 Respiratory exchange ratio sensor Jun. 24, 2008
7304580 Intelligent medical vigilance system Dec. 4, 2007
7207947 System and method for detecting circadian states using an implantable medical device Apr. 24, 2007
7087027 Device and method for monitoring respiration Aug. 8, 2006
7052470 Breathing detection/confirmation device May. 30, 2006
6910481 Pressure support compliance monitoring system Jun. 28, 2005
6659963 Apparatus for obtaining temperature and humidity measurements Dec. 9, 2003
6579242 Method and apparatus for providing patient care Jun. 17, 2003
6491642 Pyro/piezo sensor Dec. 10, 2002
6485432 Pyro/piezo sensor with enhanced sound response Nov. 26, 2002
6368287 Integrated sleep apnea screening system Apr. 9, 2002
6308705 Integrated lung therapy method Oct. 30, 2001
6254545 Pyro/piezo sensor Jul. 3, 2001
6165133 Apparatus and method for monitoring breathing patterns Dec. 26, 2000
6017315 Patient monitor and method of using same Jan. 25, 2000
5964720 Method and system for monitoring the physiological condition of a patient Oct. 12, 1999
5848974 Lung protection electrocautery Dec. 15, 1998
5765563 Patient monitoring system Jun. 16, 1998
5735284 Method and system for non-invasive determination of the main cardiorespiratory parameters of the human body Apr. 7, 1998
5676132 Pulmonary interface system Oct. 14, 1997
5582182 Abnormal dyspnea perception detection system and method Dec. 10, 1996
5573004 Electrically stable electrode and sensor apparatus Nov. 12, 1996
5562101 Portable spirometer with improved accuracy Oct. 8, 1996
5558099 Flow sensor system Sep. 24, 1996
RE34938 Non-invasive method for measuring lung tissue volume and pulmonary blood flow and a probe to carry out the method May. 16, 1995
5413111 Bead thermistor airflow sensor assembly May. 9, 1995
5394883 Multiple thin film sensor system Mar. 7, 1995
5383469 Neonatal hemolysis detection using end-tidal breath sampler and analyzer apparatus Jan. 24, 1995
5311875 Breath sensing apparatus May. 17, 1994
5279304 Nasal volume meter Jan. 18, 1994
5277196 Portable spirometer with improved accuracy Jan. 11, 1994
5265624 Stimulation collar Nov. 30, 1993
5251636 Multiple thin film sensor system Oct. 12, 1993
5230331 Hot wire anemometer adapted for insertion in a calibration socket of a pulmonary gas flow monitor Jul. 27, 1993
5190048 Thermistor airflow sensor assembly Mar. 2, 1993
5178156 Apnea preventive stimulating device Jan. 12, 1993
5161541 Flow sensor system Nov. 10, 1992
5123425 Obstructive sleep apnea collar Jun. 23, 1992
5103834 Apparatus for orthophonic diagnosis and reeducation Apr. 14, 1992
5094246 Hot wire anemometer and pulmonary gas flow monitor combination capable of fast accurate calibration Mar. 10, 1992
5081866 Respiratory air flowmeter Jan. 21, 1992
5070321 Warning apparatus for a tracheotomy tube Dec. 3, 1991
5069222 Respiration sensor set Dec. 3, 1991
5063938 Respiration-signalling device Nov. 12, 1991
5052405 Method and apparatus for measuring the density of an object including a living being Oct. 1, 1991
5005582 Non-invasive method for measuring lung tissue volume and pulmonary blood flow and a probe to carry out the method Apr. 9, 1991
4830022 Animal monitoring system May. 16, 1989

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