Edward M Richards

US Patent:

6463310, Oct 8, 2002

Filed:

Mar 7, 2000

Appl. No.:

09/520104

Inventors:

David B. Swedlow - Danville CA
Stephen L. Daleo - Dublin CA
Thomas J. Yorkey - San Ramon CA
Edward M. Richards - Pleasanton CA
Charles Porges - Orlinda CA
Charles Stuart - San Jose CA
Daniel M. Nemits - San Francisco CA
Russell L. Delonzor - San Ramon CA

Assignee:

Mallinckrodt, Inc. - Hazelwood MO

International Classification:

A61B 500

US Classification:

600323, 600322, 600331

Abstract:

A mechanism for storing and providing historical physiological data, such as blood oxygen saturation data, for a patient. In particular, the historical physiological data is stored in a storage medium that âtravelsâ with the patient and is accessible wherever the patient is moved. This is achieved by storing the physiological data within a sensor assembly. At the destination site, a monitor or a device capable of interfacing with the sensor electronics can retrieve and display the data. The historical physiological data allows a clinician or medical personnel at the destination site to assess the condition of the patient for the entire time that the patient has been monitored. Various types of physiological data can be stored including, but not limited to, blood oxygen saturation, heart rate, and temperature data. Compression of the data can be performed to enhance the storage capability.

US Patent:

7006856, Feb 28, 2006

Filed:

Jan 10, 2003

Appl. No.:

10/341318

Inventors:

Edward M. Richards - Pleasanton CA, US

Assignee:

Nellcor Puritan Bennett Incorporated - Pleasanton CA

International Classification:

A61B 5/00

US Classification:

600310, 600323, 600300

Abstract:

A method and a device for determining the quality of signal used for measuring a physiological parameter. One embodiment of the present invention is directed towards a pulse oximeter, where the measured physiological parameter includes a patient's pulse rate and blood oxygen saturation. The signal quality, which is indicative of the accuracy and reliability of the measured physiological parameter, is calculated by combining a plurality of signal quality indicators, each of which is an indicator of a quality of the measured signal. The value of the signal quality metric is compared to a threshold and based on this comparison various decisions are made by the medical device. One decision is directed towards deciding whether or not to display the measured physiological parameter, to ensure that only accurate measured values are displayed. Another decision is directed towards providing feedback to guide the clinician to adjust the location of the sensor to a more suitable tissue location.

US Patent:

8095192, Jan 10, 2012

Filed:

Dec 2, 2005

Appl. No.:

11/293714

Inventors:

Edward M. Richards - Pleasanton CA, US

Assignee:

Nellcor Puritan Bennett LLC - Boulder CO

International Classification:

A61B 5/1455
A61B 5/02

US Classification:

600310, 600322, 600323, 600502

Abstract:

The present disclosure generally relates to determining the quality of signal used for measuring a physiological parameter. One embodiment of the present disclosure is directed towards a pulse oximeter, where the measured physiological parameter includes a patient's pulse rate and blood oxygen saturation. The signal quality is calculated by combining a plurality of signal quality indicators, each of which is an indicator of a quality of the measured signal. The value of the signal quality metric is compared to a threshold and based on this comparison various decisions are made by the medical device. One decision is directed towards deciding whether or not to display the measured physiological parameter, to ensure that only accurate measured values are displayed. Another decision is directed towards providing feedback to guide the clinician to adjust the location of the sensor to a more suitable tissue location.

US Patent:

8103325, Jan 24, 2012

Filed:

Jun 1, 2006

Appl. No.:

11/444877

Inventors:

David Swedlow - Danville CA, US
Stephen L. Daleo - Dublin CA, US
Thomas J. Yorkey - San Ramon CA, US
Edward M. Richards - Pleasanton CA, US
Charles Porges - Orinda CA, US
Charles Stuart - San Jose CA, US
Daniel M. Nemits - San Francisco CA, US
Russell L. DeLonzor - San Ramon CA, US

Assignee:

Tyco Healthcare Group LP - Mansfield MA

International Classification:

A61B 5/1455
A61B 5/00

US Classification:

600323, 600300, 600310

Abstract:

Embodiments of the present invention relate to a sensor for facilitating detection of a physiological characteristic of a patient. Specifically, one embodiment includes a detector configured to obtain signals from the patient, the signals being indicative of the physiological characteristic and to send the signals to a monitor, and a sensor memory coupled with the sensor and separate from the monitor, the sensor memory storing patient physiological data derived by the monitor from the signals, the patient physiological data being indicative of the physiological characteristic.

US Patent:

50425226, Aug 27, 1991

Filed:

Jan 25, 1990

Appl. No.:

7/458971

Inventors:

James E. Corenman - Oakland CA
Daniel S. Goldberger - San Francisco CA
Edward M. Richards - Pleasanton CA
Emil P. Rojas - Los Gatos CA
James R. Braig - Hayward CA
David A. Gallup - Union City CA

Assignee:

Nellcor, Inc. - Hayward CA

International Classification:

B01D 4604

US Classification:

137239

Abstract:

A backflushing system for an inlet filter in an airway adapter in a gas flow sampling and analyzing system includes a back flush fluid supply conduit and sampling conduit connected to the airway adapter by a single coupling element. Flow of back flush fluid causes material blocking the filter to be washed away into the respiratory conduit for disposal. Flow of backflush fluid is restricted to one way flow through the backflush conduit by a disk shaped valve member mounted in the air way adapter.

US Patent:

49071661, Mar 6, 1990

Filed:

Sep 25, 1987

Appl. No.:

7/101931

Inventors:

James E. Corenman - Oakland CA
Daniel S. Goldberger - San Francisco CA
Edward M. Richards - Pleasanton CA
Emil P. Rojas - Los Gatos CA
James R. Braig - Hayward CA
David A. Gallup - Union City CA

Assignee:

Nellcor, Inc. - Hayward CA

International Classification:

G06F 1542

US Classification:

364497

Abstract:

An improved gas analyzer system (FIG. 1) and method of use for detecting and displaying the partial pressures of certain constituent gases in a respiratory gas stream, the system comprising an optical bench (111) through which a respiratory gas flows and in which measurements of the gas are taken; analog input circuits (122) for receiving signals output from the optical bench (111) through which a respiratory gas flows and in which measurements of the gas are taken; analog processing circuits (124) for processing signals output from the analog input circuits (122); display processing circuits (128) for processing the signals output from the analog processing circuits (124) and other system circuitry; pixel logic circuits/analog outputs (130) for processing signals output from the display processing circuitry (128) and providing analog output ports; a five button panel (148), an alarm/knob board (144), and a speaker driver (152) for operator interface and activation of audible and visual alarms; a CRT driver for driving a CRT; and a power supply (158) for powering the system.

US Patent:

51294010, Jul 14, 1992

Filed:

Jan 25, 1990

Appl. No.:

7/458974

Inventors:

James E. Corenman - Oakland CA
Daniel S. Goldberger - San Francisco CA
Edward M. Richards - Pleasanton CA
Emil P. Rojas - Los Gatos CA
James R. Braig - Hayward CA
David A. Gallup - Union City CA

Assignee:

Nellcor, Inc. - Hayward CA

International Classification:

A61B 508

US Classification:

128716

Abstract:

A gas analyzer system and method for detecting and displaying information of gases in a respiratory gas stream, comprising an optical bench including a gas pathway for the flow of a gas stream through the optical bench, a flow shaping inlet at the entrance to the optical bench's gas pathway, two infrared detection channel assemblies for measuring the partial pressures of the gases in the respiratory gas stream, a pressure sensor for measuring the pressure within the gas pathway, a temperature sensor for measuring the temperature within the optical bench, and a flow rate sensor for measuring the gas flow rate through the gas pathway, circuitry for processing the detected partial pressures of the gases and the measured values for pressure, temperature, and flow rate, and for providing output signals indicative of processed measured values, the detected partial pressures of the gasses, and characterization information with respect to the optical bench components; analog input circuitry for processing the signals output from the optical bench for input to analog processing circuitry; analog processing circuitry for processing and correcting at least the detected partial pressures of the gases signals for collision broadening, temperature, pressure in the gas pathway, barometric pressure, cross-correction, and characterization of the optical bench components, and providing output signals indicative of the corrected partial pressures of the gases to display processing circuitry; display processing circuitry for processing the signals for display of at least the corrected partial pressure of one gas on a cathode ray tube.