KULWINDER SINGH DUA
Medical Practice in Brookfield, WI

2008008, Apr 10, 2008

Jun 5, 2007

11/810307

David Hardin - Winston-Salem NC, US
Kulwinder Dua - Brookfield WI, US
Gregory Skerven - Kernersville NC, US

Wilson-Cook Medical Inc. - Winston-Salem NC

A61F 2/04

623023700

Medical devices for implantation in a body vessel are provided. A medical device can be configured as a drainage stent adapted for placement in a bodily passageway. The drainage stent preferably includes a drainage lumen extending longitudinally through the drainage stent, and a sleeve defining a collapsible lumen in fluid flow communication with the drainage lumen. The sleeve may function as a one-way valve and preferably includes a biodeposition-reducing bioactive agent, such as an antibiotic or antimicrobial agent. The medical device may be configured as a biliary or pancreatic stent.

6746489, Jun 8, 2004

Jun 7, 2001

09/876520

Kulwinder S. Dua - Brookfield WI
Scott T. Moore - Rural Hill NC
John A. Karpiel - Winston-Salem NC

Wilson-Cook Medical Incorporated - Winston-Salem NC

A61F 236

623 2368

Disclosed is a pressure sensitive prosthesis ( ) that includes a tubular member ( ) having a passageway ( ) extending therethrough and a sleeve ( ) attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen ( ) in a first direction ( ) and under a first pressure, while collapsing in response to fluid flowing in a second direction where the pressure that exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent ( ), such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow.

2004019, Oct 7, 2004

Apr 20, 2004

10/827957

Kulwinder Dua - Brookfield WI, US
Scott Moore - Rural Hill NC, US
John Karpiel - Winston-Salem NC, US

Wilson-Cook Medical Incorporated

A61F002/04

623/023700, 623/023660

Disclosed is a pressure sensitive prosthesis () that includes a tubular member () having a passageway () extending therethrough and a sleeve () attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen () in a first direction () and under a first pressure, while collapsing in response to fluid flowing in a second direction where the pressure that exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert back through the tubular stent frame to permit belching or vomiting (fluid or materials under a third, significantly higher pressure). Another aspect of the invention includes a tubular drainage stent (), such as a biliary or urethral stent in which the sleeve opens to permit passage of fluids, then collapses to prevent retrograde flow.

8029494, Oct 4, 2011

Oct 24, 2006

11/585513

Kulwinder S. Dua - Brookfield WI, US
Greg J. Skerven - Kernersville NC, US
Kenneth J. Fearn - Winston-Salem NC, US
Pushkar S. Mukewar - Boston MA, US

Cook Medical Technologies LLC - Bloomington IN

A61M 31/00

604509

A method of removing an obstruction in the biliary duct including the steps of providing a coaxial catheter device comprising an inner catheter having a proximal end and a distal end wherein at least two or more lumens are formed between the proximal end and distal end of the inner catheter. The method includes providing an outer catheter having a proximal end and a distal end and an opening wherein the inner catheter is coaxially engaged through the opening of the outer catheter thereby forming a coaxial space between the inner catheter and the outer catheter wherein at least one of the two or more lumens is configured for receiving a fluid for inflating a balloon, at least one of the first lumen and the second lumen is configured for receiving a wire guide and the coaxial space is configured for receiving a flushing fluid for the removal of an obstruction within the biliary duct.

2007001, Jan 18, 2007

Jan 27, 2006

11/341970

Kulwinder Dua - Brookfield WI, US
Gregory Skerven - Kernersville NC, US

Wilson-Cook Medical Inc. - Winston-Salem NC

A61F 2/04, A61F 2/90

623023680, 623001160, 623023700

Disclosed is a pressure sensitive prosthesis that includes a tubular member having a passageway extending therethrough and a sleeve attached about one end of the tubular member. The sleeve functions as a one-way valve to permit fluid flowing through the sleeve lumen in a first, distal direction and under a first pressure, while collapsing in response to fluid flowing in a second direction when the pressure thereof exceeds that of the first direction or pressure. One aspect of the invention includes an esophageal anti-reflux expandable prosthesis wherein the sleeve is adapted to invert out of the tubular stent frame to permit belching or vomiting (fluid or materials under a third, higher pressure).