David R Field

US Patent:

7197937, Apr 3, 2007

Filed:

Jan 17, 2006

Appl. No.:

11/333637

Inventors:

Alan G. Amore - Cumberland RI, US
Eric J. Giasson - Somerset MA, US
James I. Ogilvie - Cranston RI, US
Stephen P. Greene - Harmony RI, US
David J. Field - Attleboro MA, US
Andrew F. Willner - Attleboro MA, US
Vanvisa Attaset - Randallstown MD, US

Assignee:

Sensata Technologies, Inc. - Attleboro MA

International Classification:

G01L 7/08

US Classification:

73715, 73718, 73724

Abstract:

A pressure sensing device () is shown having a ceramic capacitive sensing element () received in a chamber formed in a hexport housing (). The hexport housing has a fluid passageway () communicating with a recessed chamber () formed in a bottom wall circumscribed by an annular platform shoulder (). A thin flexible metal diaphragm () is hermetically attached to the bottom wall along the platform shoulder. A curable adhesive resin having a thermal coefficient of expansion and modulus of elasticity appropriately matching that of sensing element (), such as polyurethane, is cast between the sensing element () and the metal diaphragm () forming, when cured, a layer bonded to both members resulting in a sensor that is effective in monitoring negative as well as positive fluid pressures. In one embodiment a ring is used to define layer laterally and in a second embodiment an insulator sleeve () and shield sleeve () which receives pressure sensing element () each have an open end with an inwardly extending lip () that define layer laterally.

US Patent:

7896834, Mar 1, 2011

Filed:

Aug 7, 2007

Appl. No.:

11/835095

Inventors:

Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
William J. Jaecklein - Ormond Beach FL, US
Michael L. Koltz - Jacksonville FL, US
Bradford J. Rainier - DeLand FL, US
Roland T. Stafford - Ormond Beach FL, US

Assignee:

Smisson-Cartledge Biomedical LLC - Macon GA

International Classification:

A61M 31/00

US Classification:

604 67

Abstract:

A pump system selectably controls the temperature, flow rate, flow volume, and flow pressure of a fluid being infused into a patient's body. The pump system includes a cartridge and components that removably connect with a pump housing and corresponding components, providing simple attachment of the cartridge to the pump housing. The pump housing includes a pressure sensor, a bubble detector, and a temperature sensor on a first side of the pump housing, and an engaging actuator and a central controller. The cartridge includes on a first side a heat exchanger, a pressure receptor correspondingly aligned with the pressure sensor, and a detector interface correspondingly aligned with the bubble detector and temperature sensor. Upon aligning the cartridge with the pump housing and actuating the engaging actuator, the pressure receptor communicates with the pressure sensor and the detector interface aligns with the bubble detector and temperature sensor.

US Patent:

7975491, Jul 12, 2011

Filed:

Aug 7, 2007

Appl. No.:

11/835125

Inventors:

Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
Michael L. Koltz - Jacksonville FL, US
Frederick J. York - Longwood FL, US

Assignee:

Smisson-Cartledge Biomedical LLC - Macon GA

International Classification:

F25B 21/02

US Classification:

62 33, 62 32, 165185

Abstract:

A heat exchange system selectably controls the temperature of a fluid being delivered to a patient's body by a pump device. The heat exchange system includes a thermal element and a heat exchanger that is removably coupled under pressure to the thermal element. The heat exchanger includes a first half made from thermally conductive material that correspondingly mates with the thermal element, a second half made from thermally conductive material opposite the first half, and an internal heat exchange zone existing between the first half and the second half, wherein fluid flows therethrough. The thermal element of the heat exchange system may controllably and safely warm and/or cool the fluid prior to delivery.

US Patent:

8109906, Feb 7, 2012

Filed:

Aug 7, 2007

Appl. No.:

11/835132

Inventors:

Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
Frederick J. York - Longwood FL, US

Assignee:

Smisson-Cartledge Biomedical LLC - Macon GA

International Classification:

A61M 1/00
A61M 37/00
F04B 43/08
F04B 43/12
F04B 43/06

US Classification:

604122, 604131, 4174772

Abstract:

A pump system simply and selectably controls the temperature, flow rate, flow volume, and flow pressure of a fluid being infused into a patient's body. The pump system a includes a central controller and user inputs that allow for simple selection and efficient operation of the pump system, which includes manually or automatically priming the pump system to remove air, selectably controlling and rapidly adjusting the flow rate over a wide range, selectably and safely controlling the pump system temperature controls, and selectably controlling the flow pressure during delivery. The pump system includes a pump housing with a central controller and a cartridge with infusion tubing removably coupled to the pump housing.

US Patent:

8360737, Jan 29, 2013

Filed:

Aug 7, 2007

Appl. No.:

11/835118

Inventors:

Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
Frederick J. York - Longwood FL, US

Assignee:

Smisson-Cartledge Biomedical LLC - Macon GA

International Classification:

F04B 49/06
F04B 43/08
F25B 21/02

US Classification:

417 441, 4174772, 62 33, 165185

Abstract:

A pump system selectably and dynamically controls the flow rate of a fluid being delivered to a patient's body over a wide range of flow rates. The pump system includes an infusion tubing, a pumping mechanism, a motor drive assembly in mechanical communication with the pumping mechanism, a user input control, and an electronic controller in electrical communication with and at least partially controlling the motor drive assembly. The electronic controller include a digital signal processing controller in electrical communication with the motor drive assembly that is configured to receive a signal from the user input control and to cause power to be supplied to the motor drive assembly in response at least partially to the signal from the user input control. The pump system may selectably deliver fluid at rates from about 1 milliliter per hour to at least about 3000 milliliters per minute.

US Patent:

20130138041, May 30, 2013

Filed:

Jan 25, 2013

Appl. No.:

13/750254

Inventors:

Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
Frederick J. York - Longwood FL, US

Assignee:

SMISSON-CARTLEDGE BIOMEDICAL LLC - Macon GA

International Classification:

A61M 5/44

US Classification:

604113

Abstract:

A pump system selectably and dynamically controls the flow rate of a fluid being delivered to a patient's body over a wide range of flow rates. The pump system includes an infusion tubing, a pumping mechanism, a motor drive assembly in mechanical communication with the pumping mechanism, a user input control, and an electronic controller in electrical communication with and at least partially controlling the motor drive assembly. The electronic controller include a digital signal processing controller in electrical communication with the motor drive assembly that is configured to receive a signal from the user input control and to cause power to be supplied to the motor drive assembly in response at least partially to the signal from the user input control. The pump system may selectably deliver fluid at rates from about 1 milliliter per hour to at least about 3000 milliliters per minute.

US Patent:

20140309612, Oct 16, 2014

Filed:

Jun 30, 2014

Appl. No.:

14/319280

Inventors:

- Macon GA, US
Richard G. Cartledge - Fort Lauderdale FL, US
David C. Field - Snellville GA, US
Frederick J. York - Longwood FL, US

International Classification:

A61M 5/44
A61M 5/172

US Classification:

604500, 604113, 604114

Abstract:

An infusion pump system including an infusion tubing for delivering a fluid, a heat exchanger cartridge in fluid communication with the infusion tubing and removably coupled to at least one thermal element for heating or cooling the fluid, a motor driven pump in mechanical communication with the infusion tubing and configured to pump the fluid through the infusion tubing and the heat exchanger cartridge, and a central controller in electrical communication with the motor driven pump and the at least one thermal element. The central controller is configured to selectively deliver the fluid to a patient without heating or cooling the fluid by causing the motor driven pump to pump the fluid through the infusion tubing and the heat exchanger cartridge while the thermal element is off.