Mark D Forrest

US Patent:

20050059965, Mar 17, 2005

Filed:

Sep 15, 2003

Appl. No.:

10/663176

Inventors:

Gregory Eberl - Sunnyvale CA, US
Mark Forrest - Sunnyvale CA, US

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B018/18

US Classification:

606041000, 428035500, 604103070

Abstract:

The present invention relates to catheter balloons wherein the balloon are constructed of hydrophilic energy conductive polymers. It also relates to catheter balloons that self-anchor at a target site in a patient's body. Finally, it relates to catheter balloons with very small cross-sectional profiles at the distal end.

US Patent:

20050149097, Jul 7, 2005

Filed:

Dec 30, 2003

Appl. No.:

10/749773

Inventors:

Sandra Regnell - San Jose CA, US
Mark Forrest - Sunnyvale CA, US
Raj Subramaniam - Fremont CA, US

International Classification:

A61M029/00

US Classification:

606191000

Abstract:

A transseptal needle and other structures and methods may include an outer conduit, for example one that may be subject to skiving, and a needle or other sharp structure within the outer conduit. A material no softer than the needle is positioned between the needle and the outer conduit so that the needle does not skive the inside surface of the outer conduit when the needle and outer conduit move relative to each other.

US Patent:

20100217184, Aug 26, 2010

Filed:

Feb 18, 2010

Appl. No.:

12/708114

Inventors:

Josef V. Koblish - Sunnyvale CA, US
Mark Forrest - Sunnyvale CA, US
Zaya Tun - Livermore CA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - Maple Grove MN

International Classification:

A61M 25/08
A61M 25/092

US Classification:

604 9501, 604525

Abstract:

A flexible, steerable intravascular catheter includes an elongate flexible shaft having a heterogeneous or multi-zone stiffness profile or structure. A first or distal portion of the catheter shaft may have a substantially constant or distinct stiffness or flexibility, a second, intermediate or transition section is proximal relative to, and less flexible than, the first section, and a third section is proximal relative to, and also less more flexible than, the first section. The third section also includes a substantially constant or distinct stiffness or flexibility. The flexibility or stiffness of the second section varies along its length, e.g., in a substantially linear, step-like or ramp-like manner to provide a smooth or gradual transition between the stiffness of the first or distal section and the flexibility or stiffness of the third or proximal section.

US Patent:

20110224667, Sep 15, 2011

Filed:

Mar 8, 2011

Appl. No.:

13/043301

Inventors:

Josef Koblish - Sunnyvale CA, US
Robert F. Bencini - Sunnyvale CA, US
Isaac Kim - San Jose CA, US
Mark Forrest - Sunnyvale CA, US
Patricia Chen - Fremont CA, US
Darrell L. Rankin - Milpitas CA, US

International Classification:

A61B 18/14

US Classification:

606 41

Abstract:

Disclosed herein, among other things, are methods and apparatus related to radio frequency (RF) ablation catheters. The present subject matter provides an ablation catheter system including a catheter body with a distal tip, and a thermocouple component at the distal tip. The thermocouple component is adapted to sense temperature of bodily fluid and/or tissue. The system includes a non-conductive insert configured to physically separate and thermally insulate the thermocouple component from the catheter body. Various embodiments include an open-irrigated ablation catheter system, the system further including at least one fluid chamber and a plurality of irrigation ports within the catheter body, where the plurality of irrigation ports enable fluid to exit from the at least one fluid chamber. The non-conductive insert is further configured to physically separate and thermally insulate the thermocouple component from the plurality of fluid flow channels and irrigation ports.

US Patent:

20190192222, Jun 27, 2019

Filed:

Mar 4, 2019

Appl. No.:

16/291970

Inventors:

- Maple Grove MN, US
Isaac J. Kim - San Jose CA, US
Mark D. Forrest - Sunnyvale CA, US
Desmond Cheung - San Jose CA, US
Guy R. Harvey - Milpitas CA, US
Ravi Kurse - Fremont CA, US
Ofelia Ortiz - San Jose CA, US
Simplicio A. Velilla - Santa Clara CA, US
Oanh Nguyen - San Jose CA, US
Bryan Wylie - Redwood City CA, US
Taiki Esheim - Morgan Hill CA, US

International Classification:

A61B 18/14

Abstract:

An open-irrigated catheter system includes a catheter body and a tip assembly, coupled to a distal end of the catheter body. The tip assembly includes an exterior wall that is conductive for delivering radio frequency (RF) energy for an RF ablation procedure, and that defines an interior region. The exterior wall includes a number of proximal irrigation ports and a number of distal irrigation ports. At least one fluid chamber is defined within the interior region and is in fluid communication with at least one of the proximal irrigation ports and the distal irrigation ports. At least one fluid lumen extends from a fluid source, through the catheter body, to the tip assembly, and is in fluid communication with the at least one fluid chamber.

US Patent:

20160374755, Dec 29, 2016

Filed:

Jun 28, 2016

Appl. No.:

15/195995

Inventors:

- Maple Grove MN, US
Isaac J. Kim - San Jose CA, US
Mark D. Forrest - Sunnyvale CA, US
Desmond Cheung - San Jose CA, US
Guy R. Harvey - Milpitas CA, US
Ravi Kurse - Fremont CA, US
Ofelia Ortiz - San Jose CA, US
Simplicio A. Velilla - Santa Clara CA, US
Oanh Nguyen - San Jose CA, US
Bryan Wylie - Redwood City CA, US
Taiki Esheim - Morgan Hill CA, US

International Classification:

A61B 18/14

Abstract:

An open-irrigated catheter system includes a catheter body and a tip assembly, coupled to a distal end of the catheter body. The tip assembly includes an exterior wall that is conductive for delivering radio frequency (RF) energy for an RF ablation procedure, and that defines an interior region. The exterior wall includes a number of proximal irrigation ports and a number of distal irrigation ports. At least one fluid chamber is defined within the interior region and is in fluid communication with at least one of the proximal irrigation ports and the distal irrigation ports. At least one fluid lumen extends from a fluid source, through the catheter body, to the tip assembly, and is in fluid communication with the at least one fluid chamber.

US Patent:

20140249510, Sep 4, 2014

Filed:

May 13, 2014

Appl. No.:

14/276761

Inventors:

- MAPLE GROVE MN, US
MARK FORREST - SUNNYVALE CA, US
ZAYA TUN - LIVERMORE CA, US

Assignee:

BOSTON SCIENTIFIC SCIMED, INC. - MAPLE GROVE MN

International Classification:

A61M 25/01

US Classification:

604525

Abstract:

A flexible, steerable intravascular catheter includes an elongate flexible shaft having a heterogeneous or multi-zone stiffness profile or structure. A first or distal portion of the catheter shaft may have a substantially constant or distinct stiffness or flexibility, a second, intermediate or transition section is proximal relative to, and less flexible than, the first section, and a third section is proximal relative to, and also less more flexible than, the first section. The third section also includes a substantially constant or distinct stiffness or flexibility. The flexibility or stiffness of the second section varies along its length, e.g., in a substantially linear, step-like or ramp-like manner to provide a smooth or gradual transition between the stiffness of the first or distal section and the flexibility or stiffness of the third or proximal section.