1
George Zonios, Vijay K Iyer, Uday S Shankar: Adaptive calibration for pulse oximetry. RIC Investments, Michael W Haas, January 4, 2005: US06839580 (130 worldwide citation)

A method for calibrating a pulse oximeter device and an apparatus incorporating the method and a system for utilizing the method. The method is based on modeling light propagation in tissue at two wavelengths, typically, one in the red and one in the infrared range of the spectrum. A formula is deri ...


2
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heather Ressler: Auto-titration bi-level pressure support system and method of using same. RIC Investments, Michael W Haas, May 10, 2011: US07938114 (51 worldwide citation)

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...


3
Ben Haberland, Uday S Shankar: Apnea/hypopnea detection system and method. RIC Investments, Michael W Haas, October 10, 2006: US07118536 (25 worldwide citation)

An apnea/hypopnea detection system and method that monitors a patient's respiratory flow, determines (a) a long term RMS energy based on the flow, (b) a long term threshold determined based on the long term RMS energy, and (c) a short term RMS energy based on the flow. Determining whether the patien ...


4
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heather Ressler: Auto-titration bi-level pressure support system and method of using same. RIC Investments, Michael W Haas, March 20, 2012: US08136521 (9 worldwide citation)

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...


5
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heather Ressler: Auto-titration bi-level pressure support system and method of using same. KONINKLIJKE PHILIPS, Michael W Haas, April 25, 2017: US09629970

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...


6
Ben Haberland, Uday S Shankar: Apnea/hypopnea detection system and method. RIC Investments, Michael W Haas Intellectual Property Counsel, Respironics, January 27, 2005: US20050020932-A1

An apnea/hypopnea detection system and method that monitors a patient's respiratory flow, determines (a) a long term RMS energy based on the flow, (b) a long term threshold determined based on the long term RMS energy, and (c) a short term RMS energy based on the flow. Determining whether the patien ...


7
George Zonios, Vijay K Iyer, Uday S Shankar: Adaptive calibration for pulse oximetry. Michael W Haas Intellectual Property Counsel, Respironics, June 19, 2003: US20030114738-A1

A method for calibrating a pulse oximeter device and an apparatus incorporating the method and a system for utilizing the method. The method is based on modeling light propagation in tissue at two wavelengths, typically, one in the red and one in the infrared range of the spectrum. A formula is deri ...


8
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heather Ressler: Auto-Titration Bi-Level Pressure Support System and Method of Using Same. RIC Investments, Michael W Haas, Respironics, February 21, 2008: US20080041382-A1

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...


9
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heather Ressler: Auto-Titration Bi-Level Pressure Support System and Method of Using Same. Michael W Haas, Respironics, February 21, 2008: US20080041383-A1

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...


10
Greg Matthews, Winslow K Duff, Daniel Martin, Uday S Shankar, Heater Ressler: Auto-titration bi-level pressure support system and method of using same. RIC Investments, Michael W Haas Intellectual Property Counsel, Respironics, January 5, 2006: US20060000475-A1

A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generate ...