DR. JEFFREY CHAMBERS, M.D.
Osteopathic Medicine at Coon Rapids Blvd, Minneapolis, MN

7115134, Oct 3, 2006

Jul 22, 2002

10/064498

Jeffrey W. Chambers - Plymouth MN, US

Chambers Technology, LLC. - Mackinac Island MI

A61F 11/00

606108, 604527, 604525

An improved apparatus and method to catheterize passages is disclosed. The present invention provides a catheter having a soft flexible pre-formed distal tip, that when used in combination with commercially available guidewires of variable stiffness, results in the ability to control the direction and angle of wire advancement allowing cannulation of body passages, including those that arise at acute angles. The catheter can have a longitudinal axis, a proximal section and a distal section having a soft flexible pre-formed tip having a curvature of ninety degrees or greater and shape retention. The catheter can have an inner wall that defines a lumen that runs along said longitudinal axis forming a single continuous tube, a reinforcement braid disposed over the inner wall, and an outside covering disposed over the reinforcement braid. A spacer can be added between said wall liner and said reinforcement braid in the proximal end.

7867219, Jan 11, 2011

Oct 3, 2006

11/542345

Jeffrey W. Chambers - Plymouth MN, US

Chambers Technologies, LLC - Mackinac Island MI

A61M 25/00

604532, 604508, 604528

An improved apparatus and method to catheterize passages is disclosed. The present invention provides a catheter having a soft flexible pre-formed distal tip, that when used in combination with commercially available guidewires of variable stiffness, results in the ability to control the direction and angle of wire advancement allowing cannulation of body passages, including those that arise at acute angles. The catheter can have a longitudinal axis, a proximal section and a distal section having a soft flexible pre-formed tip having a curvature of ninety degrees or greater and shape retention. The catheter can have an inner wall that defines a lumen that runs along said longitudinal axis forming a single continuous tube, a reinforcement braid disposed over the inner wall, and an outside covering disposed over the reinforcement braid. A spacer can be added between said wall liner and said reinforcement braid in the proximal end.

2002009, Jul 11, 2002

Jan 5, 2001

09/754223

Jeffrey Chambers - Plymouth MN, US

A61M025/10

623/001110

A stent designed with an attachable positioning apparatus to effectively place the stent at the precise deployment site within a narrowed vascular region such as an artery. In the preferred embodiment, the present invention comprises a stabilizing wire. The positional apparatus is, for example, frictionally engaged to the stent balloon and adjacent wire loops for frictional engagement with the walls to position the stent at the deployment site. Other means to engage the positional apparatus and stent balloon and adjacent wire loops can include: elastic bands, adhesion, or polymer bonding. The stent is maneuvered through the vessel by a balloon catheter that is guided by a guiding catheter up the vessel to where the narrowing is located. Upon exiting the guiding catheter and approaching the deployment site within the coronary artery, the wire loops expand and frictionally engage the artery walls and, thereby, effectively position the stent at the deployment site within the narrowed vessel. This apparatus and method is particularly useful for stent placement at an ostium (origin) of a vascular region.

8252034, Aug 28, 2012

Mar 29, 2004

10/812250

Jeffrey W. Chambers - Plymouth MN, US

A61F 2/06

623 111, 623903, 606108

A stent combined with a positioning apparatus to effectively place the stent at a precise deployment site within a narrowed vascular region such as an artery. The stent is maneuvered through the vessel and is guided by a guiding catheter up the vessel to where the narrowing is located. Upon exiting the guiding catheter and approaching the deployment site within the coronary artery, a deployment site locator expands to contact the vascular structure and, thereby, effectively position the stent at the deployment site within the narrowed vessel. This system apparatus and method is particularly useful for stent placement at an ostium (origin) of a vessel.

7722629, May 25, 2010

Oct 29, 2004

10/976395

Jeffrey W. Chambers - Plymouth MN, US

A61B 17/04, A61B 17/12

606144, 606148

The contents include occlusion and/or repair of congenital heart defects including methods, apparatuses, and systems utilizing catheter delivery in order to repair congenital heart defects. In particular, a method of repair includes suturing a septal tissue proximate defect in order to repair the defect with a device introduced through a bodily lumen of a patient. A repair device can include an expansion assembly, a suture delivering portion, and a suture receiving portion.