Alfonso Z Ramirez

US Patent:

7512445, Mar 31, 2009

Filed:

Aug 3, 2005

Appl. No.:

11/196025

Inventors:

Csaba Truckai - Sunnyvale CA, US
Russel Mahlon Sampson - Mountain View CA, US
Stephanie Squarcia - Palo Alto CA, US
Alfonso Lawrence Ramirez - San Jose CA, US
Estela Hilario - Los Altos CA, US

Assignee:

Cytyc Corporation - Marlborough MA

International Classification:

A61F 2/00
A61B 18/18

US Classification:

607101, 607105, 606 41, 604 35

Abstract:

An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. The array includes conductive regions separated by insulated regions arranged to produce ablation to a predetermined depth. Following placement of the ablation device into contact with the tissue to be ablated, in RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.

US Patent:

8506563, Aug 13, 2013

Filed:

Oct 19, 2009

Appl. No.:

12/581506

Inventors:

Csaba Truckai - Sunnyvale CA, US
Russel Mahlon Sampson - Mountain View CA, US
Stephanie Squarcia - Palo Alto CA, US
Alfonso Lawrence Ramirez - San Jose CA, US
Estela Hilario - Los Altos CA, US

Assignee:

Cytyc Surgical Products - Marlborough MA

International Classification:

A61B 18/18

US Classification:

606 41, 606 32, 607101, 607138

Abstract:

An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. The array includes conductive regions separated by insulated regions arranged to produce ablation to a predetermined depth. Following placement of the ablation device into contact with the tissue to be ablated, an RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.

US Patent:

20050085880, Apr 21, 2005

Filed:

Oct 6, 2004

Appl. No.:

10/959771

Inventors:

Csaba Truckai - Sunnyvale CA, US
Russel Sampson - Mountain View CA, US
Stephanie Squarcia - Palo Alto CA, US
Alfonso Ramirez - San Jose CA, US
Estela Hilario - Los Altos CA, US

International Classification:

A61F002/00

US Classification:

607101000

Abstract:

An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. The array includes conductive regions separated by insulated regions arranged to produce ablation to a predetermined depth. Following placement of the ablation device into contact with the tissue to be ablated, an RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.

US Patent:

20140046317, Feb 13, 2014

Filed:

Aug 8, 2013

Appl. No.:

13/962178

Inventors:

Russel Mahlon Sampson - Mountain View CA, US
Stephanie Squarcia - Palo Alto CA, US
Alfonso Lawrence Ramirez - San Jose CA, US
Estela Hilario - Los Altos CA, US

Assignee:

Cytyc Surgical Products - Marlborough MA

International Classification:

A61B 18/18
A61B 17/42

US Classification:

606 33, 606119

Abstract:

An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. Following placement of the ablation device into contact with the tissue to be ablated, an RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.

US Patent:

20140249527, Sep 4, 2014

Filed:

May 15, 2014

Appl. No.:

14/278741

Inventors:

- Marlborough MA, US
Russel Mahlon Sampson - Mountain View CA, US
Stephanie Squarcia - Palo Alto CA, US
Alfonso Lawrence Ramirez - San Jose CA, US
Estela Hilario - Los Altos CA, US

Assignee:

Cytyc Surgical Products - Marlborough MA

International Classification:

A61B 18/14
A61B 19/00

US Classification:

606 41

Abstract:

An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. Following placement of the ablation device into contact with the tissue to be ablated, an RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.