David C Vescovi

US Patent:

7238164, Jul 3, 2007

Filed:

Dec 31, 2002

Appl. No.:

10/335646

Inventors:

Robert W. Childers - New Port Richey FL, US
Richard Avoy - Palm Harbor FL, US
John Booras - Wildwood IL, US
Paul Grippo - Palm Harbor FL, US
Andrew D. Hopping - Largo FL, US
David Howard - Crystal Lake IL, US
Jeffrey W. Jerrell - Clearwater FL, US
Benjamin Kellam - Clearwater FL, US
Brian Lauman - Clearwater FL, US
Sherwin Shang - Vernon Hills IL, US
David Vescovi - Pinellas Park FL, US
Tahua Yang - Woodridge IL, US
Alex Yu - Safety Harbor FL, US

Assignee:

Baxter International Inc. - Derrfield IL
Baxter Healthcare S.A. - Zurich

International Classification:

A61M 37/00
C02F 1/44
F04B 45/04
C02F 9/00

US Classification:

604 611, 604 61, 604 501, 604 401, 210258, 210645, 4174772

Abstract:

The present invention provides systems, methods and apparatuses for medical fluid delivery systems that employ a pumping cassette. In particular, the present invention provides systems, methods and apparatuses for cassette-based dialysis therapies including hemodialysis, hemofiltration, APD (including tidal modalities) and CFPD. The embodiments described include a combined pump/valve housing, a fail safe pump/valve arrangement, a cassette auto-alignment feature, a pumping membrane material, a multiplexing valve arrangement, an expert fluid pumping management system, an integral port vent and an in-line air separation chamber and combinations of each of these.

US Patent:

7867189, Jan 11, 2011

Filed:

Dec 28, 2006

Appl. No.:

11/617527

Inventors:

Robert W. Childers - New Port Richey FL, US
Richard Avoy - Palm Harbor FL, US
John Booras - Wildwood IL, US
Paul Grippo - Palm Harbor FL, US
Andrew D. Hopping - Largo FL, US
David Howard - Gulfport FL, US
Jeffrey W. Jerrell - Clearwater FL, US
Benjamin Kellam - Clearwater FL, US
Brian Lauman - Clearwater FL, US
Sherwin Shang - Vernon Hills IL, US
David Vescovi - Pinellas Park FL, US
Tahua Yang - Woodridge IL, US
Alex Yu - Safety Harbor FL, US

Assignee:

Baxter International Inc. - Deerfield IL
Baxter Healthcare S.A. - Glattpark (Opfikon)

International Classification:

A61M 1/00

US Classification:

604 29, 604 31, 604131

Abstract:

A dialysis machine includes: a hardware unit including at least one pump actuator, at least one valve actuator and a cassette interface, the cassette interface including: (i) a plate that abuts the cassette; (ii) at least one pump aperture defined by the plate; (iii) at least one pump head moveable out of and retractable into the at least one pump aperture to operate a pumping portion of the cassette; (iv) at least one valve aperture defined by the plate; (v) at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the cassette; (vi) at least one sensor aperture defined by the plate; and (vii) at least one sensor located in the least one sensor aperture, the at least one sensor operable with a sensor portion of the cassette.

US Patent:

20110106003, May 5, 2011

Filed:

Jan 10, 2011

Appl. No.:

12/987738

Inventors:

Robert W. Childers - New Port Richey FL, US
Richard Avoy - Palm Harbor FL, US
John Booras - Wildwood IL, US
Paul Grippo - Palm Harbor FL, US
Andrew D. Hopping - Largo FL, US
David Howard - Gulfport FL, US
Jeffrey W. Jerrell - Clearwater FL, US
Benjamin Kellam - Clearwater FL, US
Brian Lauman - Clearwater FL, US
Sherwin Shang - Vernon Hiils IL, US
David Vescovi - Pinellas Park FL, US
Tahua Yang - Woodridge IL, US
Alex Yu - Safety Harbor FL, US

Assignee:

BAXTER INTERNATIONAL INC. - Deerfield IL
BAXTER HEALTHCARE S.A. - Glattpark (Opfikon)

International Classification:

A61M 1/28

US Classification:

604 29

Abstract:

A peritoneal dialysis system includes a disposable cassette including a flexible sheet; a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including: (a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; (b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and (c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette.

US Patent:

52240118, Jun 29, 1993

Filed:

Apr 19, 1991

Appl. No.:

7/687754

Inventors:

Murty V. V. S. Yalla - Largo FL
David C. Vescovi - Pinellas Park FL
Thomas R. Beckwith - Largo FL

Assignee:

Gas Research Institute - Chicago IL

International Classification:

H02H 300

US Classification:

361 93

Abstract:

A protective relay system for generation apparatus connectable to a three-phase alternating current electrical utility system. The relay system includes a dual processing architecture wherein a digital signal processor executes all the signal-processing algorithms, and a separate microprocessor is used for input/output data processing. A dual-ported RAM is used to effect a fast communication link between the digital signal processor and the microprocessor to accomplish high-speed protective relaying functions to selectively trip and close a circuit breaker at a generator or cogenerator site, or that which connects it to an electric utility system.

US Patent:

20200121842, Apr 23, 2020

Filed:

Dec 17, 2019

Appl. No.:

16/717759

Inventors:

- Deerfield IL, US
- Glattpark (Opfikon), CH
John Booras - Wildwood IL, US
Joseph H. Bowman - Lake Villa IL, US
Paul Grippo - Palm Harbor FL, US
Andrew D. Hopping - Largo FL, US
David Howard - Gulfport FL, US
Jeffrey W. Jerrell - Clearwater FL, US
Benjamin Kellam - Clearwater FL, US
Brian Lauman - Clearwater FL, US
Sherwin Shang - Vernon Hills IL, US
David Vescovi - Pinellas Park FL, US
Tahua Yang - Woodridge IL, US
Alex Yu - Safety Harbor FL, US

International Classification:

A61M 1/28
A61M 1/16

Abstract:

A system for performing a dialysis treatment includes a dialysis fluid machine; a disposable dialysis fluid carrying member operable with the dialysis fluid machine; and a venting filter provided by the disposable member, the venting filter positioned and arranged to be coupled along with the disposable member to the dialysis fluid machine to perform the dialysis treatment and to vent air from the disposable member.

US Patent:

20160184503, Jun 30, 2016

Filed:

Mar 8, 2016

Appl. No.:

15/063762

Inventors:

- Deerfield IL, US
- Glattpark (Opfikon), CH
John Booras - Wildwood IL, US
Paul Grippo - Palm Harbor FL, US
Andrew D. Hopping - Largo FL, US
David Howard - Gulfport FL, US
Jeffrey W. Jerrell - Clearwater FL, US
Benjamin Kellam - Clearwater FL, US
Brian Lauman - Clearwater FL, US
Sherwin Shang - Vernon Hills IL, US
David Vescovi - Pinellas Park FL, US
Tahua Yang - Woodridge IL, US
Alex Yu - Safety Harbor FL, US

International Classification:

A61M 1/28

Abstract:

A dialysis system includes a disposable cassette including a flexible sheet and a plurality of dialysis fluid pathways, a plurality of actuators operable with the flexible sheet to direct dialysis fluid through the plurality of dialysis fluid pathways, and a controller configured to (i) determine at least one limitation of the plurality of dialysis fluid pathways, (ii) generate a flow schedule indicating how dialysis fluid should be directed through the plurality of dialysis fluid pathways in accordance with the at least one limitation, and (iii) control the plurality of actuators so that dialysis fluid is pumped through the plurality of dialysis fluid pathways according to the flow schedule.