Michael K Scharf

US Patent:

6461696, Oct 8, 2002

Filed:

Feb 7, 2000

Appl. No.:

09/498674

Inventors:

Michael T. K. Ling - Vernon Hills IL
Lecon Woo - Libertyville IL
Robert Wojnarowski - Zion IL
Ketan Shah - Gurnee IL
Gregg Nebgen - Burlington WI
Yuan-pang Samuel Ding - Vernon Hills IL
Varsha Kalyankar - Round Lake Beach IL
Keith M. K. Anderson - Libertyville IL
Lillian G. Zakarija - Chicago IL
Colleen S. Cramer - Racine WI
Michael Scharf - McHenry IL
Larry A. Rosenbaum - Gurnee IL

Assignee:

Baxter International Inc. - Deerfield IL

International Classification:

B32B 2708

US Classification:

428 345, 428 366, 428 367, 428355 AK, 428355 EN, 428355 BL, 428355 CN, 428355 AC, 428355 N, 428515, 428516, 428517, 428519, 428520, 428521, 428522, 428523, 4284242, 4284248, 4284763, 4284769, 525 66, 525 88, 525 92 R, 525 92 B, 525 93, 525 95, 525 96, 525178, 525185, 525191, 525222, 525240, 525241

Abstract:

The present invention provides a multiple layer thermoplastic structure of a (1) skin layer selected from the group consisting of polypropylene, ethylene homopolymers having a density of from about 0. 930 g/cc to about 0. 960 g/cc, and ethylene homopolymers having a density of from about 0. 930 g/cc to about 0. 960 g/cc blended with an ethylene and a-olefin copolymers having a density less than about 0. 930 g/cc, the skin layer having a thickness of greater than about 3. 0 mils; (2) a radio frequency susceptible layer adhered to the skin layer, the radio frequency susceptible layer having a dielectric loss greater than 0. 05 at 1-60 MHz and at temperatures of ambient to 250Â C. , the radio frequency susceptible layer having: (a) a first polyolefin selected from the group consisting of polypropylene and polypropylene copolymers, (b) a second polyolefin selected from the group consisting of ethylene copolymers, ultra-low density polyethylene, polybutene, and butene ethylene copolymers; (c) a radio frequency susceptible polymer selected from the group consisting of (i) ethylene copolymers having 50-85% ethylene content with comonomers selected from a first group consisting of acrylic acid, methacrylic acid, ester derivatives of acrylic acid with alcohols having 1-10 carbons, ester derivatives of methacrylic acid with alcohols having 1-10 carbons, vinyl acetate, and vinyl alcohol (ii) homopolymers and copolymers containing at least one segment of urethanes, esters, ureas, imides, sulfones, and amides, and (d) a compatibilizing agent of a styrene and hydrocarbon copolymer; wherein the structure when fabricated into a 50 ml container has a water vapor transmission rate of less than 8% by weight after the container has been autoclaved at 121Â C. for 20 minutes and stored for 90 days in an environmentally regulated compartment having 15% relative humidity at 40Â C.

US Patent:

6874522, Apr 5, 2005

Filed:

Jun 18, 2002

Appl. No.:

10/173890

Inventors:

Keith M. K. Anderson - Libertyville IL, US
Raf Castellanos - Roselle IL, US
Bill Hurst - Burlington WI, US
Michael T. K. Ling - Vernon Hills IL, US
Dan Marcquenski - Lake Zurich IL, US
Michael W. Scharf - McHenry IL, US
Jennifer L. Masek - Lindenhurst IL, US
Gregory Thomas Marn - Libertyville IL, US

Assignee:

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

International Classification:

F16K017/40
A61M005/32

US Classification:

137 683, 285 3, 604411, 604415

Abstract:

A connector, a container using the connector and a method for establishing fluid communication with a container. The connector may include a first coupling member and a second coupling member. The container may attach to the first coupling member. The first coupling member may have a first passageway with a spike and a membrane located therein. The second coupling member may have a second passageway. The first coupling member may engage the second coupling member and may further pierce the membrane with the spike. The first coupling member may further have a female end of a luer-lock, and the second coupling member may have a male end of a luer-lock. The first coupling member and the second coupling member may be engaged by twisting the male end and the female end of the coupling members to form the connector and establish fluid communication with the container.

US Patent:

D2953803, Apr 26, 1988

Filed:

Jun 25, 1985

Appl. No.:

6/748514

Inventors:

Robert A. Virag - Libertyville IL
Michael W. Scharf - McHenry IL

Assignee:

Baxter Travenol Laboratories, Inc. - Deerfield IL

US Classification:

D 9447

US Patent:

61622060, Dec 19, 2000

Filed:

Dec 23, 1997

Appl. No.:

8/996642

Inventors:

Algirdas J. Bindokas - Clarendon Hills IL
Birendra K. Lal - Lake Zurich IL
Ray Brausam - Antioch IL
Thomas A. Stonis - Crystal Lake IL
Steven C. Jepson - Palatine IL
Michael W. Scharf - McHenry IL
David V. Bacehowski - Wildwood IL
Michael T. K. Ling - Vernon Hills IL
Hugh M. Forman - Brookfield WI
Daniel J. Rudolph - Chicago IL

Assignee:

Baxter International Inc. - Deerfield IL

International Classification:

A61M 3900

US Classification:

604533

Abstract:

A resealable access site (10) is provided for allowing a cannula (18) multiple accesses to an internal cavity (35) defined by a container (12). The access site (10) includes a first conduit (28) defining a passageway (29) forming a fluid path to the cavity within the container. Sealingly attached to the conduit (28) is a housing (26) with a lower portion (26a) and a lower flange (68) attached to a lower end of the lower portion and extending radially inward from the lower portion. A septum (24) is disposed and compressed within the lower portion, with the septum defining an opening (46) extending upward through at least a portion of the septum. The opening (46) is sized for insertion of the cannula (18) through the septum (24) with the septum sealing about the exterior of the cannula. The septum (24) is maintained in the housing by the support provided by the opposing flange (68) and conduit (28).