Douglas K Bottom

7490607, Feb 17, 2009

Apr 11, 2005

11/103167

Douglas K. Bottom - Watertown WI, US
Clifford G. Kersey - Oregon WI, US
Steven A. Jandl - Lodi WI, US
John E. Klaus - Cottage Grove WI, US

The General Electric Company - Schenectady NY

A61M 11/00

12820312, 12820315

A cassette for vaporization of anesthetic agent for delivery to a patient is arranged to be received by an anesthesia machine which has control mechanisms for controlling vaporization of the agent. In a preferred arrangement, the cassette includes a housing for receiving, containing and emitting anesthetic agent. A sensor, such as a pressure sensor or a temperature sensor is embedded in the housing for obtaining a value of the agent contained in the reservoir. The sensor is operatively connected to the reservoir to obtain an accurate value of the agent. A communication link is provided between the sensor and the control mechanisms of the anesthesia machine when the cassette is received by the anesthesia machine. The cassette thus provides a simplified arrangement that efficiently and accurately provides values of the anesthetic agent being vaporized in the reservoir.

8365724, Feb 5, 2013

Dec 29, 2009

12/648602

Douglas K. Bottom - Watertown WI, US

General Electric Company - Schenectady NY

A61M 15/00

12820314, 12820325

An anesthetic vaporizer and a method of control thereof includes measuring a composition of the carrier gas with a first sensor and measuring a composition of a combined gas with a second sensor, and using these values with a controller to operate a flow valve for the regulation of the flow of an anesthetic agent into the combined gas.

20060225736, Oct 12, 2006

Apr 11, 2005

11/103109

Douglas Bottom - Watertown WI, US

B65D 83/06
A61M 16/00

128203150

An anesthetic agent cassette is provided for selectively communicating with an anesthesia machine using either analog or digital communication techniques. The anesthetic agent cassette includes an input contact that receives an input signal from an anesthesia machine. Based upon the input signal, the control circuit in the anesthetic agent cassette determines whether the anesthetic agent cassette is coupled to an anesthesia machine that utilizes either digital communication or analog communication. The anesthetic agent cassette includes an output circuit that selectively connects either a digital output line or an analog output line to a single output contact.

20120240928, Sep 27, 2012

Mar 21, 2011

13/052700

Douglas K. Bottom - Watertown WI, US

GENERAL ELECTRIC COMPANY - Schenectady NY

A61M 16/18

12820314

The present application includes an independent and redundant measurement of anesthetic concentration, based on acoustic time-of-flight measurements, added to an anesthetic vaporizer. The redundant anesthetic concentration measurement is used to make the vaporizer inherently safe by design and monitor true vaporizer empty. Further, using an acoustic wave splitting technique and the time-of-flight measurements, the flows at the vaporizer inlet and outlet are computed. The flow measurements are used to monitor carrier gas loss, anesthetic consumption, and anesthetic delivery time remaining and provide such information to the vaporizer operator.

20130220314, Aug 29, 2013

Feb 29, 2012

13/407915

Douglas Bottom - Watertown WI, US

GENERAL ELECTRIC COMPANY - Schenectady NY

A61M 11/00
A01G 27/00

12820014, 239145

An apparatus and method utilize a porous vaporization element with a dispersion mechanism to disperse a liquid agent onto the porous vaporization element. The porous vaporization element extends across a majority of a cross-sectional area of the flow passage. In one implementation, the liquid agent is sprayed onto the porous vaporization element.

20180272098, Sep 27, 2018

Mar 23, 2017

15/467483

- Schenectady NY, US
Douglas Kirk Bottom - Watertown WI, US

A61M 16/10
A61M 16/12
A61M 16/20
A61M 16/08
G05D 11/13
G01N 29/30
G01N 33/00
G01N 29/024

A medical vaporizer is provided. In one embodiment, dual-purpose sensors are employed, such as in a configuration in which one is positioned in the mixed gas flow channel and one is positioned in the main gas flow channel. The sensors provide measurements that may be used to determine both gas flow and gas concentration in the mixed and main gas channels, even when the identity and/or properties of the gas in the main gas channel are unknown. The measurements derived from the dual-purpose sensors may be used to measure and report the total anesthetic being delivered at the vaporizer output and/or improve vaporizer accuracy.

20180272099, Sep 27, 2018

Mar 23, 2017

15/467462

- Schenectady NY, US
Douglas Kirk Bottom - Watertown WI, US

A61M 16/12
A61M 16/20
A61M 16/10
A61M 16/08
G01F 1/66

A medical gas mixer is provided. In one embodiment, dual-purpose sensors are employed, such as in a configuration in which one is positioned in the mixed gas flow channel and one is positioned in the main gas flow channel. The sensors provide measurements that may be used to determine both gas flow and gas concentration in the mixed and main gas channels, even when the identity and/or properties of the gas in the main gas channel are unknown.

20160008567, Jan 14, 2016

Jul 9, 2014

14/327159

- Schenectady NY, US
Douglas Kirk Bottom - Watertown WI, US

GENERAL ELECTRIC COMPANY - Schenectady NY

A61M 16/18
A61M 16/20
A61M 16/00

A system for pressurizing liquid is described herein. The system may include a liquid reservoir and a pump coupled to the liquid reservoir, the pump to draw liquid from the liquid reservoir. A compliant volume coupled to the pump receives liquid from pump. The compliant volume is composed of an elastic material to increase pressure of the liquid. A valve coupled to the compliant volume receives pressurized liquid from the compliant volume.