Edward A 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:

7074205, Jul 11, 2006

Filed:

Aug 23, 1999

Appl. No.:

09/379212

Inventors:

Robert J. Duffy - Poway CA, US
Lon M. Severe - San Diego CA, US
Edward M. Richards - Pleasanton CA, US
Shawn W. DeKalb - San Diego CA, US
James P. Stewart - San Diego CA, US
Dale Coleman - Santa Clarita CA, US
Timothy Vanderveen - Poway CA, US

Assignee:

Cardinal Health 303, Inc. - San Diego CA

International Classification:

A61B 1/00

US Classification:

604 65, 604 67

Abstract:

A modular patient care system having a central management unit module and one or more detachable functional units is described. Using unique mechanical and electrical features, the modular patient care system is capable of flexibly, bilaterally, and safely providing electrical power from the central management unit to the attached functional units, with exposed power leads of end units being electrically isolated for safety and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached. Additionally, the modular patient care system provides for a modular connection arrangement wherein modules are detachably connected to each other in a convenient, flexible, interchangeable, and secure manner by providing a hinge connector pair, a specially located latch mechanism, and a guide means between any pair of modules.

US Patent:

7553291, Jun 30, 2009

Filed:

Jul 10, 2006

Appl. No.:

11/484319

Inventors:

Robert J. Duffy - Poway CA, US
Lon M. Severe - San Diego CA, US
Edward M. Richards - Pleasanton CA, US
Shawn W. DeKalb - San Diego CA, US
James P. Stewart - San Diego CA, US
Dale Coleman - Santa Clarita CA, US
Timothy Vanderveen - Poway CA, US

Assignee:

Cardinal Health 303, Inc. - San Diego CA

International Classification:

A61B 1/00

US Classification:

604 65

Abstract:

A modular patient care system having a central management unit module and one or more detachable functional units is described. Using unique mechanical and electrical features, the modular patient care system is capable of flexibly, bilaterally, and safely providing electrical power from the central management unit to the attached functional units, with exposed power leads of end units being electrically isolated for safety and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached. Additionally, the modular patient care system provides for a modular connection arrangement wherein modules are detachably connected to each other in a convenient, flexible, interchangeable, and secure manner by providing a hinge connector pair, a specially located latch mechanism, and a guide means between any pair of modules.

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:

20090260177, Oct 22, 2009

Filed:

Apr 21, 2009

Appl. No.:

12/427341

Inventors:

Edward Richards - Davie FL, US

International Classification:

A47L 7/00

US Classification:

15320

Abstract:

A surface cleaner, comprising a tank having a fluid-filled part and an air-filled part; a vacuum pump; a fluid pressure pump; a cleaning head having a cleaning chamber and a vacuum chamber, the cleaning chamber forming a cavity bounded by a surface to be cleaned, the vacuum chamber having an inlet lip at the periphery of the cleaning chamber; jet nozzles mounted within the cleaning chamber; wherein the pressure pump draws fluid from the tank and ejects it into the cleaning chamber through the nozzles; wherein the vacuum pump maintains a low pressure in the air-filled part of the tank and a high pressure in the cleaning chamber; and wherein the inlet lip is in fluid communication with the air-filled part of the tank portion whereby fluid ejected into the cleaning chamber is drawn into the inlet lip and returned to the tank.

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.