David A Atwell

US Patent:

7993359, Aug 9, 2011

Filed:

Jul 11, 2006

Appl. No.:

11/484825

Inventors:

David Atwell - Colorado Springs CO, US
Brian Kagarise - Colorado Springs CO, US
Kevin D. Taylor - Colorado Springs CO, US

Assignee:

The Spectrametics Corporation - Colorado Springs CO

International Classification:

A61B 17/32

US Classification:

606170, 606167, 606171

Abstract:

The invention provides an apparatus having a tubular member for receiving an endocardial lead implanted within a patient's body. Disposed generally at a distal end of the tubular member is at least one blade or cutting surface. An adjustment mechanism moves the blade between retracted and extended positions to engage the cutting surface with the endocardial lead to cut the lead. Once severed, the cut portion of the lead remains within an inner channel of the tubular member and the apparatus and cut portion of the lead are removed from within the patient. Alternatively, in some embodiments, the cut portion of the lead is disposed externally to the tubular member, and the cut portion and the apparatus are removed from the patient, either separately or together. Various embodiments include the blade pivotally connected to the distal end of the tubular member and activated by a wire adjustment mechanism. Others include a metallic wire for slicing through the lead.

US Patent:

20160339232, Nov 24, 2016

Filed:

Jul 25, 2016

Appl. No.:

15/218444

Inventors:

- Colorado Springs CO, US
David Atwell - Colorado Springs CO, US
Kenneth D. Harlan - Peyton CO, US
Thomas E. Plasket - Colorado Springs CO, US
Kevin D. Taylor - Colorado Springs CO, US

International Classification:

A61N 1/05
A61B 17/32

Abstract:

In some embodiments, without limitation, the invention comprises an apparatus for cutting an endocardial lead within a patient. The apparatus comprises a generally flexible tubular member having a proximal end and distal end. At least one blade or cutting surface is affixed to the distal end of the tubular member. The apparatus optionally includes an adjustment mechanism adapted to adjust the blade or cutting surface between an extended position and a retracted position. The blade or cutting surface engages the endocardial lead to cut the lead. Various embodiments include a v-shaped groove defining the cutting surfaces. Other embodiments may comprise a rotatable blade of an inner shaft rotating within the tubular member and cutting the lead received within the v-shaped groove, and blades or cutting surfaces functioning like guillotines or scissors retracting into a distal end of the tubular member.

US Patent:

20160001064, Jan 7, 2016

Filed:

Sep 17, 2015

Appl. No.:

14/857621

Inventors:

- Colorado Springs CO, US
David Atwell - Colorado Springs CO, US
Kenneth D. Harlan - Peyton CO, US
Thomas E. Plasket - Colorado Springs CO, US
Kevin D. Taylor - Colorado Springs CO, US

International Classification:

A61N 1/05
A61B 17/32
A61B 18/22

Abstract:

In some embodiments, without limitation, the invention comprises an apparatus for cutting an endocardial lead within a patient. The apparatus comprises a generally flexible tubular member having a proximal end and distal end. At least one blade or cutting surface is affixed to the distal end of the tubular member. The apparatus optionally includes an adjustment mechanism adapted to adjust the blade or cutting surface between an extended position and a retracted position. The blade or cutting surface engages the endocardial lead to cut the lead. Various embodiments include a v-shaped groove defining the cutting surfaces. Other embodiments may comprise a rotatable blade of an inner shaft rotating within the tubular member and cutting the lead received within the v-shaped groove, and blades or cutting surfaces functioning like guillotines or scissors retracting into a distal end of the tubular member.