Christopher A Pearson

US Patent:

6685703, Feb 3, 2004

Filed:

Oct 19, 2001

Appl. No.:

10/036068

Inventors:

Christopher Pearson - Grafton MA
Robert Garabedian - Tyngsboro MA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 1818

US Classification:

606 41, 606 42, 606 32

Abstract:

An adapter to couple a dissimilar, normally incompatible radiotherapeutic probe and radio frequency generator includes an adapter body having a proximal connector to be coupled to the generator, a distal connector to be coupled to the dissimilar, normally incompatible radiotherapeutic probe, and one or more electrical elements to emulate one or more operating parameters of a compatible, native radiotherapeutic probe to interface the generator with the dissimilar, normally incompatible radiotherapeutic probe.

US Patent:

8142427, Mar 27, 2012

Filed:

Apr 23, 2004

Appl. No.:

10/831244

Inventors:

Christopher Pearson - Grafton MA, US
Robert Garabedian - Tyngsboro MA, US
Robert F. Rioux - Ashland MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61B 18/18

US Classification:

606 41

Abstract:

An invasive medical device for delivery radio frequency energy to a target tissue region includes an elongate delivery cannula having a lumen in communication with a distal opening. A deployment member is positioned and longitudinally movable in the lumen. An array of electrode elements are secured to a distal end of the deployment member, the deployment member being movable from a delivery position, in which the electrode elements are positioned within the lumen, to a deployed position, in which the electrode elements extend distally out of the cannula distal opening. A sealing member formed from a biocompatible material sufficiently rigid to penetrate solid body tissue partially extends from, and substantially seals, the distal cannula opening when the deployment member is in the delivery position. By way of examples, the sealing member may be carried on a distal end of the deployment member, or on a separately movable deployment member, or frictionally fit in the cannula distal opening.

US Patent:

8216235, Jul 10, 2012

Filed:

Nov 21, 2007

Appl. No.:

11/944257

Inventors:

Robert F. Rioux - Ashland MA, US
Robert Garabedian - Tyngsboro MA, US
Christopher Pearson - North Grafton MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MA

International Classification:

A61B 18/14

US Classification:

606 51, 606 41

Abstract:

An apparatus for delivering electrical energy includes a tubular member having a pair of opposing members extendable from the distal end of the tubular member, the opposing members being directable towards one another for engaging tissue between inner surfaces of the opposing members, the opposing members having one or more electrodes for delivering electrical energy to tissue engaged between the opposing members. One or more hollow needles extend from an inner surface of at least one opposing member, the hollow needles configured to deliver conductive fluid from a lumen into tissue penetrated by the needles.

US Patent:

8632538, Jan 21, 2014

Filed:

Mar 17, 2012

Appl. No.:

13/423205

Inventors:

Christopher Pearson - Grafton MA, US
Robert Garabedian - Tyngsboro MA, US
Robert F. Rioux - Ashland MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61B 18/18

US Classification:

606 50, 606 41

Abstract:

A medical device for delivering RF energy to a target tissue region includes an elongate delivery cannula having a lumen in communication with a distal opening. A deployment member is positioned and longitudinally movable in the lumen. An array of electrode elements are secured to a distal end of the deployment member, the deployment member being movable from a delivery position, in which the electrode elements are positioned within the lumen, to a deployed position, in which the electrode elements extend distally out of the cannula distal opening. A sealing member formed from a bio-compatible material sufficiently rigid to penetrate solid body tissue partially extends from, and substantially seals, the distal cannula opening when the deployment member is in the delivery position.

US Patent:

20050080410, Apr 14, 2005

Filed:

Oct 14, 2003

Appl. No.:

10/685744

Inventors:

Robert Rioux - Ashland MA, US
Robert Garabedian - Mountain View CA, US
Christopher Pearson - North Grafton MA, US

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B018/14

US Classification:

606041000

Abstract:

An apparatus for delivering electrical energy includes a cannula and one or more needles extendable from and retractable into a lumen of the cannula. A distal portion of each needle is extendable from the lumen and terminates in a tissue-piercing distal tip. Each distal portion is formed from an electrically conductive and porous material, thereby providing a porous electrode through which electrolytic fluid may flow for delivering electrical energy to tissue surrounding the distal portion. The cannula is introduced into a tissue structure of a patient, the one or more needles are advanced from the cannula, saline is introduced from the porous material to surrounding tissue, and electrical energy from an RF generator is delivered to ablate tissue within the tissue structure.

US Patent:

20080108950, May 8, 2008

Filed:

Aug 6, 2007

Appl. No.:

11/834186

Inventors:

Robert F. Rioux - Ashland MA, US
David Danielsen - Westborough MA, US
Christopher Pearson - North Grafton MA, US

International Classification:

A61M 5/00

US Classification:

604181

Abstract:

Described is a method and a device for inserting a helical member into a living body. The device may include a handle having an actuator lever rotatably coupled thereto. The device may also include a helical member which has a tissue piercing distal tip. The helical member is coupled to the handle via a linkage operating so that, as the actuator lever is rotated in a first direction relative to the handle, the helical member is rotated and moved distally to screw into tissue along a substantially helical path.