Patents by Inventor John Zawacki
John Zawacki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9387304Abstract: A multi-lumen catheter including a generally cylindrical body enclosing a first and second lumen separated by a generally planar septum. A first and second tip section extend from a distal end of the body. The first and second tip section may each include a generally planar surface. The second tip section may include a first segment extending from the distal end of the body to a transition segment and a second segment extending from the transition segment to a distal end of the second tip section.Type: GrantFiled: July 10, 2014Date of Patent: July 12, 2016Assignee: C.R. Bard, Inc.Inventors: John A. Zawacki, Kelly B. Powers, John G. Evans, Guy Rome
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Patent number: 8920363Abstract: A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. The catheter includes a first continuous loop and a second continuous loop formed from a distal extension of the outer wall, the first continuous loop beginning at a first side of the distal end of the body to define a first enclosed opening, and the second continuous loop beginning at a second side of the distal end of the body to define a second enclosed opening.Type: GrantFiled: November 4, 2011Date of Patent: December 30, 2014Assignee: C. R. Bard, Inc.Inventors: Ryan C. Patterson, Kelly B. Powers, John A. Zawacki, Ryan T. Moehle, Jeff Kraus
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Publication number: 20140330220Abstract: A multi-lumen catheter including a generally cylindrical body enclosing a first and second lumen separated by a generally planar septum. A first and second tip section extend from a distal end of the body. The first and second tip section may each include a generally planar surface. The second tip section may include a first segment extending from the distal end of the catheter body to a transition segment and a second segment extending from the transition segment to a distal end of the second tip section.Type: ApplicationFiled: July 10, 2014Publication date: November 6, 2014Inventors: John A. Zawacki, Kelly B. Powers, John G. Evans, Guy Rome
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Patent number: 8808227Abstract: A multi-lumen catheter including a generally cylindrical body enclosing a first and second lumen separated by a generally planar septum. A first and second tip section extend from a distal end of the body. The first and second tip section may each include a generally planar surface. The second tip section may include a first segment extending from the distal end of the body to a transition segment and a second segment extending from the transition segment to a distal end of the second tip section.Type: GrantFiled: October 18, 2007Date of Patent: August 19, 2014Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Kelly B. Powers, John G. Evans, Guy Rome
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Patent number: 8226632Abstract: Methods of coupling a catheter to a stem are disclosed. In some embodiments, a stem extends longitudinally between a proximal end and a distal end, and the stem can include at least one enlargement positioned between the proximal end and the distal end. In some embodiments, a catheter can be positioned over the at least one enlargement and over a region of the stem that is proximal to the at least one enlargement. In further embodiments, a collar can be mated to the stem.Type: GrantFiled: December 5, 2005Date of Patent: July 24, 2012Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Jeffrey A. Vasek
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Patent number: 8152951Abstract: A multi-lumen catheter including tip sections distal to a dividing point, the tip sections releasably joined by a method that produces a variable separation force between the tip sections along a length thereof. An increasing separation force may be imparted to the tip sections by providing an increasing bond strength in fusion zones from a distal portion of the tip sections toward the dividing point.Type: GrantFiled: September 21, 2007Date of Patent: April 10, 2012Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Kelly B. Powers
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Publication number: 20120053503Abstract: A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. The catheter includes a first continuous loop and a second continuous loop formed from a distal extension of the outer wall, the first continuous loop beginning at a first side of the distal end of the body to define a first enclosed opening, and the second continuous loop beginning at a second side of the distal end of the body to define a second enclosed opening.Type: ApplicationFiled: November 4, 2011Publication date: March 1, 2012Applicant: C. R. BARD, INC.Inventors: Ryan C. Patterson, Kelly B. Powers, John A. Zawacki, Ryan T. Moehle, Jeff Kraus
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Patent number: 8057424Abstract: A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. A loop extends from a distal end of the body and defines an enclosed opening. An arterial inlet in fluid communication with the arterial lumen, and a venous outlet in fluid communication with the venous lumen, are positioned on the loop.Type: GrantFiled: December 15, 2008Date of Patent: November 15, 2011Assignee: C. R. Bard, Inc.Inventors: Ryan C. Patterson, Kelly B. Powers, John A. Zawacki, Ryan Moehle, Jeff Kraus
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Patent number: 8021321Abstract: A split tip dialysis catheter having an outer tube and an inner tube, the two tubes which can be arranged over at least a portion of their length in a coaxial configuration. The inner tube may be connected to the outer tube at a proximal bifurcation, secured at a distal end of the outer tube or both, but generally the inner tube will remain free to move relative to the outer tube to optimize functionality. In addition, the inner tube can be arranged to be removable from the catheter for replacement thereof.Type: GrantFiled: May 10, 2004Date of Patent: September 20, 2011Assignee: C. R. Bard, Inc.Inventor: John A. Zawacki
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Patent number: 7578803Abstract: A multifunction adaptor for an open-ended catheter that allows placement of the catheter while minimizing the risk of air embolism or blood loss through the open (proximal) end of the catheter body. In one variation, the design allows passage of a standard guidewire for “over-the-guidewire” placement techniques and a connection for catheter flushing using a standard syringe. In another variation, the multifunction adaptor is configured for coupling a tunneler to the proximal end of a catheter.Type: GrantFiled: March 8, 2005Date of Patent: August 25, 2009Assignee: C. R. Bard, Inc.Inventors: Guy T. Rome, William R. Barron, John G. Evans, Dwight Hibdon, John A. Zawacki
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Publication number: 20090156891Abstract: A pelvic implant assembly having a support member and an insertion tool. The insertion tool having an implant support portion for supporting the support member as it is being inserted into a tight therapeutic location within a patient. The support member is coupled to and extends between the implant support portions prior to insertion into the incision. Once the insertion tool and accompanied support member are in the therapeutic location the insertion tool can open and spread out the support member. The insertion tool can also dilate the tissue as it opens, thereby, eliminating the need to dissect tissue.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicant: AMS RESEARCH CORPORATIONInventors: Amanda J. Heys, Karen Pilney Montpetit, David J. Kupiecki, John A. Zawacki, Daniel Taut, Shawn Michael Wignall, Gregory L. Koeller
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Publication number: 20090093748Abstract: A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. A loop extends from a distal end of the body and defines an enclosed opening. An arterial inlet in fluid communication with the arterial lumen, and a venous outlet in fluid communication with the venous lumen, are positioned on the loop.Type: ApplicationFiled: December 15, 2008Publication date: April 9, 2009Applicant: C. R. Bard, Inc.Inventors: Ryan C. PATTERSON, Kelly B. POWERS, John A. ZAWACKI, Ryan T. MOEHLE, Jeff KRAUS
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Patent number: 7465286Abstract: A multi-lumen catheter comprising a loop-like structure at the distal portion of the catheter is disclosed herein. In one variation, the loop-tip catheter comprises a dual lumen catheter and a loop-like structure at the distal end of the catheter. The loop-like structure includes at least one lumen, which is in fluid communication with at lease one of the two lumens in the dual lumen catheter. One or more ports are provided on the loop-like structure for accessing the lumens within the loop. In another variation, the loop-tip catheter is configured with an arterial inlet positioned on an inner surface of the loop, while a venous outlet is positioned on an outer surface of the loop. Methods for making and using variations of the loop-tip catheter are also disclosed herein.Type: GrantFiled: March 3, 2005Date of Patent: December 16, 2008Assignee: C. R. Bard, Inc.Inventors: Ryan C. Patterson, Kelly B. Powers, John A. Zawacki, Ryan T. Moehle, Jeff Kraus
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Patent number: 7393339Abstract: A multi-lumen catheter defined by at least two separate tip sections distal to a dividing point includes strategic placement of openings in the tip sections to facilitate fluid flow and minimize typical problems associated with catheters. In a multi-lumen catheter having tip sections with a releasably joined or splittable region, the bond strength between the tip sections is varied along their length such that an increasing separation force is required to separate the tip sections from one another distal to the dividing point. Delivery of a multi-lumen catheter is improved with respect to both sheathed and non-sheathed delivery methods, in which a friction reducing structure is provided on either the catheter, delivery sheath or both to provide a buffer for a sheathed delivery and in which a unique guidewire aperture or additional lumen is provided in at least one of the tip sections for a non-sheathed delivery.Type: GrantFiled: February 21, 2003Date of Patent: July 1, 2008Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Kelly B. Powers, John G. Evans, Guy Rome
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Publication number: 20080039774Abstract: A multi-lumen catheter including a generally cylindrical body enclosing a first and second lumen separated by a generally planar septum. A first and second tip section extend from a distal end of the body. The first and second tip section may each include a generally planar surface. The second tip section may include a first segment extending from the distal end of the catheter body to a transition segment and a second segment extending from the transition segment to a distal end of the second tip section.Type: ApplicationFiled: October 18, 2007Publication date: February 14, 2008Applicant: C.R. Bard, Inc.Inventors: John Zawacki, Kelly Powers, John Evans, Guy Rome
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Publication number: 20080021417Abstract: A multi-lumen catheter including tip sections distal to a dividing point, the tip sections releasably joined by a method that produces a variable separation force between the tip sections along a length thereof. An increasing separation force may be imparted to the tip sections by providing an increasing bond strength in fusion zones from a distal portion of the tip sections toward the dividing point.Type: ApplicationFiled: September 21, 2007Publication date: January 24, 2008Inventors: John Zawacki, Kelly Powers, John Evan, Guy Rome
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Publication number: 20070233042Abstract: A catheter, with one or more lumens, having a first portion and a second portion and an arcuate transition region extending between the first portion and the second portion. The first portion is nonparallel to the second portion.Type: ApplicationFiled: April 2, 2007Publication date: October 4, 2007Inventors: Ryan Moehle, Ryan Patterson, John Zawacki, Jeffrey Bright, Dwight Hibdon
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Patent number: D550839Type: GrantFiled: October 12, 2005Date of Patent: September 11, 2007Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Kelly B. Powers, John G. Evans, Guy T. Rome
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Patent number: D574950Type: GrantFiled: September 7, 2007Date of Patent: August 12, 2008Assignee: C.R. Bard, Inc.Inventors: John A. Zawacki, Annemarie Boswell
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Patent number: D612479Type: GrantFiled: September 7, 2007Date of Patent: March 23, 2010Assignee: C. R. Bard, Inc.Inventors: John A. Zawacki, Annemarie Boswell