Russell L Sampson

US Patent:

6712815, Mar 30, 2004

Filed:

Jan 16, 2002

Appl. No.:

10/052157

Inventors:

Russell M. Sampson - Mountain View CA
Eugene Skalnyi - Mountain View CA
Estela Hilario - Los Altos CA

Assignee:

Novacept, Inc. - Palo Alto CA

International Classification:

A61B 1804

US Classification:

606 41, 606 49

Abstract:

Disclosed is an ablation method and apparatus used to close veins for treatment of venous insufficiency disease. The apparatus includes a catheter proportioned for insertion into a vein, a pair of inflatable balloons spaced apart on the catheter body, and an ablation electrode array disposed between the balloons. According to the disclosed method, the catheter is introduced into the vein to be treated and the balloons are distended. Blood is flushed and aspirated from the site between the balloons. RF power is applied to the electrode array, causing scarring of the vessel walls and eventual sealing of the vein.

US Patent:

6872183, Mar 29, 2005

Filed:

May 24, 2004

Appl. No.:

10/852648

Inventors:

Russell M. Sampson - Mountain View CA, US
Mike O'Hara - Flasstaff AZ, US
Csaba Truckai - Saratoga CA, US
Dean T. Miller - Menlo Park CA, US

Assignee:

Cytyc Surgical Product - Palo Alto CA

International Classification:

A61B005/00
A61M031/00

US Classification:

600561, 600560, 600587

Abstract:

A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.

US Patent:

7063670, Jun 20, 2006

Filed:

Feb 11, 2005

Appl. No.:

11/056998

Inventors:

Russell M. Sampson - Mountain View CA, US
Mike O'Hara - San Jose CA, US
Csaba Truckai - Saratoga CA, US
Dean T. Miller - Menlo Park CA, US

Assignee:

Cytyc Surgical Products - Palo Alto CA

International Classification:

A61B 5/00
A61M 31/00

US Classification:

600560, 600587, 600561, 607 63, 606 41

Abstract:

A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.

US Patent:

7087052, Aug 8, 2006

Filed:

Oct 1, 2003

Appl. No.:

10/676619

Inventors:

Russell M. Sampson - Mountain View CA, US
Eugene Skalnyi - Mountain View CA, US
Estela Hilario - Los Altos CA, US

Assignee:

CYTYC Surgical Products - Palo Alto CA

International Classification:

A61B 18/04

US Classification:

606 41, 604 9601

Abstract:

Disclosed is an ablation method and apparatus used to close veins for treatment of venous insufficiency disease. The apparatus includes a catheter proportioned for insertion into a vein, a pair of inflatable balloons spaced apart on the catheter body, and an ablation electrode array disposed between the balloons. According to the disclosed method, the catheter is introduced into the vein to be treated and the balloons are distended. Blood is flushed and aspirated from the site between the balloons. RF power is applied to the electrode array, causing scarring of the vessel walls and eventual sealing of the vein.

US Patent:

7294126, Nov 13, 2007

Filed:

Jan 5, 2004

Appl. No.:

10/751592

Inventors:

Russell M. Sampson - Mountain View CA, US
Eugene Skalnyi - Mountain View CA, US
Estela Hilario - Los Altos CA, US

Assignee:

CYTYC Corporation - Marlborough MA

International Classification:

A61B 18/04

US Classification:

606 41, 604104

Abstract:

Disclosed is an ablation method and apparatus used to close veins for treatment of venous insufficiency disease. The apparatus includes a catheter proportioned for insertion into a vein, a pair of inflatable balloons spaced apart on the catheter body, and an ablation electrode array disposed between the balloons. According to the disclosed method, the catheter is introduced into the vein to be treated and the balloons are distended. Blood is flushed and aspirated from the site between the balloons. RF power is applied to the electrode array, causing scarring of the vessel walls and eventual sealing of the vein.

US Patent:

6554780, Apr 29, 2003

Filed:

Nov 10, 2000

Appl. No.:

09/710102

Inventors:

Russell M. Sampson - Mountain View CA
Mike OHara - San Jose CA
Csaba Truckai - Saratoga CA
Dean T. Miller - Menlo Park CA

Assignee:

Novacept - Palo Alto CA

International Classification:

A61B 5103

US Classification:

600587, 600560, 600561, 607 63

Abstract:

A system and method for detecting perforations in a body cavity. A fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.