Daniel J Potter

US Patent:

6632200, Oct 14, 2003

Filed:

Dec 11, 2000

Appl. No.:

09/734391

Inventors:

Xiaoping Guo - Bloomington MN
Richard Stehr - Stillwater MN
Daniel J. Potter - Stillwater MN

Assignee:

St. Jude Medical, Daig Division - Minnetonka MN

International Classification:

A61M 500

US Classification:

604247, 60416704, 604256

Abstract:

A hemostasis cannula unit including a valve housing, a cap, and a hemostasis valve, wherein the hemostasis valve includes a proximal valve gasket and a distal valve gasket compressed against the valve gasket by the valve housing, wherein the proximal valve gasket is the same shape as the distal valve gasket.

US Patent:

7632254, Dec 15, 2009

Filed:

Jan 23, 2006

Appl. No.:

11/338031

Inventors:

Bradford A. Bjorkman - Elk River MN, US
Daniel J. Potter - Stillwater MN, US
Donald G. Goblish - Cologne MN, US

Assignee:

Pacesetter, Inc. - Sylmar CA

International Classification:

A61M 5/14
F16K 1/48

US Classification:

604256, 251369, 60416405

Abstract:

The present invention is a tool coupled to a hemostasis valve and adapted to slit/split a tubular body of a catheter or sheath to facilitate the removal of the tubular body from about a medical device extending through the hemostasis valve and tubular body. The tool comprises a conical barrel portion supporting one or more radially outward extending blades. The tool also comprises a stabilizing component for preventing displacement between the tool and medical device when the tubular body is being removed from about the medical device.

US Patent:

7879024, Feb 1, 2011

Filed:

Feb 4, 2005

Appl. No.:

11/052617

Inventors:

Chad A. Thorstenson - Andover MN, US
Richard E. Stehr - Stillwater MN, US
Omar Amirana - Minneapolis MN, US
Daniel J. Potter - Stillwater MN, US

Assignee:

St. Jude Medical, Atrial Fibrillation Division, Inc. - St. Paul MN

International Classification:

A61M 25/098

US Classification:

604529, 6041031

Abstract:

A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.

US Patent:

8371555, Feb 12, 2013

Filed:

Jan 4, 2005

Appl. No.:

11/029800

Inventors:

Claude Rickerd - Bloomington MN, US
Kirk Honour - Minnetonka MN, US
Daniel J. Potter - Stillwater MN, US

Assignee:

Pacesetter, Inc. - Sylmar CA

International Classification:

F16K 27/08

US Classification:

251367, 60416704, 604256

Abstract:

The present invention is a splittable multi-piece hemostasis valve that is held together in an assembled condition via a binder formed about the assembled valve. The binder may be a sleeve of thin polymer material shrink-wrapped about the valve. When the valve needs to be split in order to clear a medical device such as a pacemaker lead, the sleeve is split and the valve is disassembled.

US Patent:

8449527, May 28, 2013

Filed:

Dec 29, 2010

Appl. No.:

12/980973

Inventors:

Chad A. Thorstenson - Andover MN, US
Richard E. Stehr - Stillwater MN, US
Omar Amirana - Minneapolis MN, US
Daniel J. Potter - Stillwater MN, US

Assignee:

St. Jude Medical, Atrial Fibrillation Division, Inc. - St. Paul MN

International Classification:

A61M 25/098

US Classification:

604529, 6041031

Abstract:

A splittable cannula includes a radiopaque marker placed at or near the distal end of the cannula. The radiopaque marker may be a unitary piece, or may consist of several portions. The cannula may include a sheath or catheter body with a grooved score line running along a portion of the sheath body and a radiopaque marker located at a distal end of the body and abutting the body. The radiopaque marker may be located within the lumen of the sheath, may be embedded in the sheath wall, or may be affixed to the external sheath wall. The radiopaque marker may be scored, notched, grooved, or contain apertures longitudinally. The notches, grooves, apertures, and/or score lines in both the sheath or catheter body and the radiopaque marker serve to provide a weakened tear path. An electrode lead may be coupled with the radiopaque marker.

US Patent:

20080208128, Aug 28, 2008

Filed:

Apr 28, 2006

Appl. No.:

11/911190

Inventors:

Xiaoping Guo - Eden Prairie MN, US
Richard E. Stehr - Stillwater MN, US
Vitaliy G. Epshteyn - Maple Grove MN, US
Bruce P. Holman - Champlin MN, US
Donald A. Sauter - Victoria, AU
Chad A. Thorstenson - Andover MN, US
Daniel J. Potter - Stillwater MN, US
Nalin S. Perera - Tarzana CA, US

International Classification:

A61M 25/00

US Classification:

60416405

Abstract:

A splittable/peelable tubular body () of a catheter or sheath wherein the tubular body () has a splittable/peelable atraumatic tip () is disclosed. The atraumatic tip () is generally softer than the tubular body (). The tubular body () and atraumatic tip () each comprise a peel mechanism longitudinally extending along their respective lengths. The peel mechanisms are formed by longitudinally extending regions of interfacial bonding () between first and second longitudinally extending strips () of polymer material. Each strip () forms at least a portion of an outer circumferential surface of the tubular body () and atraumatic tip (). A region of stress concentration extends along the region of interfacial bonding. The stress concentration facilitates the splitting of the tubular body () and atraumatic tip () along their respective peel mechanisms.

US Patent:

20130172712, Jul 4, 2013

Filed:

Dec 29, 2011

Appl. No.:

13/339547

Inventors:

Lev A. Koyrakh - Plymouth MN, US
Daniel J. Potter - Stillwater MN, US
Jeffrey A. Schweitzer - St. Paul MN, US
D. Curtis Deno - Andover MN, US
Anthony D. Hill - Minneapolis MN, US
Dale E. Just - Minneapolis MN, US

International Classification:

A61B 5/04

US Classification:

600373

Abstract:

An introducer sheath for a medical device is provided. The sheath includes a deformable, elongate body disposed about a longitudinal axis. The body has proximal and distal ends and defines a lumen extending between the proximal and distal ends and configured to allow passage of the medical device therethrough. The body is configured to allow an electric current to pass radially between a space outside of the body and the lumen such that the position of the medical device within a patient can be monitored and electrogram readings from body tissues can be measured while the device is in the sheath. In some embodiments of the invention, the body may include a one or more apertures extending from the radially outer surface of the body to the lumen or a portion of the body may be made from a conductive and/or fluid permeable material.

US Patent:

20190307500, Oct 10, 2019

Filed:

Nov 29, 2017

Appl. No.:

16/464738

Inventors:

- St. Paul MN, US
Jeffrey M. Fish - Maple Grove MN, US
Jeffrey A. Schweitzer - St. Paul MN, US
Daniel J. Potter - Stillwater MN, US
Gregory K. Olson - Elk River MN, US
Frederik H. M. Wittkampf - Lage Vuursche, NL
Rene Van Es - Utrecht, NL

International Classification:

A61B 18/12
A61B 18/14

Abstract:

The present disclosure provides electroporation systems, methods of controlling electroporation systems to limit electroporation arcs through intracardiac catheters, and catheters for electroporation systems. One method of controlling an electroporation system including a direct current (DC) energy source, a return electrode connected to the DC energy source, and a catheter connected to the DC energy source is disclosed. The catheter has a at least one catheter electrode. The method includes positioning the return electrode near a target location within a body and positioning the catheter electrode adjacent the target location within the body. A system impedance is determined with the return electrode positioned near the target location and the catheter electrode positioned within the body. The system impedance is adjusted to a target impedance to arcing from the catheter electrode.