Robert A Petersen

US Patent:

6585696, Jul 1, 2003

Filed:

Dec 22, 2000

Appl. No.:

09/746210

Inventors:

Robert L. Petersen - Winthrop Harbor IL
James C. Laird - Grayslake IL
Jorge Delcastillo - Des Plaines IL
Jacquelynn Welter - Bristol WI
Atif M. Yardimci - Northbrook IL

Assignee:

Baxter International, Inc. - Deerfield IL

International Classification:

A61M 500

US Classification:

604191, 604210, 604 82, 222391

Abstract:

An applicator gun for spraying a medically useful multiple component fluid to an area of interest. The handheld applicator gun functionally receives a commercially available or standardized multi-syringe applicator, and dispenses fluid from the multi-syringe applicator in a controllable manner. The handheld applicator gun further includes a return stop and a dispensing stop to limit the force exerted on the multi-syringe applicator.

US Patent:

6835186, Dec 28, 2004

Filed:

Sep 26, 2000

Appl. No.:

09/669353

Inventors:

David W. Pennington - Fox Lake IL
Atif M. Yardimci - Northbrook IL
David Amrani - Glendale WI
Arnold C. Bilstad - Deerfield IL
Yves A. Delmotte - Neufmaison, BE
James P. Diorio - Antioch IL
Robert L. Petersen - Winthrop Harbor IL
Joseph F. Prybell - Grayslake IL
James Slepicka - Spring Grove IL
Cristina Stadler - Columbus IN
John Womelsdorf - Caldwell NJ

Assignee:

Baxter International, Inc. - Deerfield IL

International Classification:

A61M 3700

US Classification:

604 82

Abstract:

This invention provides a medical device for delivering volumetric quantities of a first and a second biochemically reactive fluid in which separate MBUs atomize the fluids. The device of the present invention includes a fluid delivery device for laparoscopically delivering fluids having two feed conduits for delivering fluid to feed ports of the mechanical breakup units, the mechanical breakup units having two feed ports for receiving fluid from the feed conduits and directing such fluid into spin chambers and funneling portions having a sloped sidewall for directing fluid from the spin chambers through an exit port. The device is suitably dimensioned for creating a spray of two fluids with different viscosities such as fibrinogen and thrombin in such a manner that the thrombin spray cone encompasses the fibrinogen spray cone at a distance of about one inch from the exit port with a 0. 5 cc/second flow rate to avoid depositing unreacted fibrinogen on a surface. Other instruments such as optical fibers may be incorporated within the device.

US Patent:

20040024353, Feb 5, 2004

Filed:

Apr 28, 2003

Appl. No.:

10/426045

Inventors:

Robert Petersen - Winthrop Harbor IL, US
James Laird - Grayslake IL, US
Jorge Delcastillo - Des Plaines IL, US
Jacquelynn Welter - Bristol WI, US
Atif Yardimci - Northbrook IL, US

International Classification:

A61M037/00

US Classification:

604/082000

Abstract:

An applicator gun for spraying a medically useful multiple component fluid to an area of interest. The handheld applicator gun functionally receives a commercially available or standardized multi-syringe applicator, and dispenses fluid from the multi-syringe applicator in a controllable manner. The handheld applicator gun further includes a return stop and a dispensing stop to limit the force exerted on the multi-syringe applicator.

US Patent:

6162358, Dec 19, 2000

Filed:

Jun 5, 1998

Appl. No.:

9/092768

Inventors:

Norman N. Li - Arlington Heights IL
Mark A. Kuehne - Evanston IL
Robert J. Petersen - Minneapolis MN

Assignee:

NL Chemicals Technologies, Inc. - Mount Prospect IL

International Classification:

B01D 7156

US Classification:

21050038

Abstract:

Reverse osmosis membranes with improved water flux and excellent solute rejection characteristics are formed by interfacial reaction of an essentially monomeric polyamine reactant having an average of at least two amine functional groups with an essentially monomeric amine-reactive reactant having an average of at least 2. 05 acyl halide functional groups, the polymerization reaction being conducted in the presence of a monohydric phenol on the surface of a porous substrate. A specific example is a high flux composite membrane prepared by coating a porous substrate with an aqueous solution containing about 0. 1-20 wt % m-phenylenediamine and 0. 1-9. 9 wt % phenol, and interfacially contacting the coated substrate with a nonaqueous solution of about 0. 01-10 wt % trimesoyl chloride for a time sufficient to form a polyamide coating, followed optionally by one or more washing and drying steps to remove the nonaqueous solvent and most or all of residual unreacted chemicals.