DR. STEVEN VAL MARCUS, PH.D.
Psychologist at Hollidale Ct, Los Altos, CA
License number
California PSY6465
Category
Psychologist
Type
Psychologist
Address
Address
1471 Hollidale Ct, Los Altos, CA 94024
Phone
(650) 962-1987
Organization information
See more information about STEVEN VAL MARCUS at bizstanding.comSteven Val Marcus PH.D
1471 Hollidale Ct, Los Altos, CA 94024
Industry:
Medical Doctor's Office, Nonclassifiable Establishments
Phd:
Steven V. Marcus (Phd)
Professional information
Ablation Of Rectal And Other Internal Body Structures
US Patent:
6419673, Jul 16, 2002
Filed:
Apr 25, 2000
Appl. No.:
09/557993
Inventors:
Stuart D. Edwards - Portola Valley CA
Steven V Marcus - Los Altos CA
Steven V Marcus - Los Altos CA
Assignee:
Stuart Edwards - Corral De Tierra CA
International Classification:
A61B 1818
US Classification:
606 41, 607101, 607133
Abstract:
The invention provides an apparatus and system for ablation of body structures or tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting energy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloons at upstream and downstream locations. Inflatable balloons also serve to anchor the catheter in place. A plurality of electrodes are disposed on the catheter and at least one such electrode is selected and advanced out of the catheter to penetrate and ablate selected tissue inside the body in the region of the rectum. The electrodes are coupled to sensors to determine control parameters of the body structure or tissue, and which are used by feedback technique to control delivery of energy for ablation or fluids for cooling or hydration. The catheter includes an optical path disposed for coupling to an external view piece, so as to allow medical personnel to view or control positioning of the catheter and operation of the electrodes. The catheter is disposed to deliver flowable substances for aiding in ablation, or for aiding in repair of tissue, such as collagen or another substance for covering lesions or for filling fissures.
Dr. Steven V Marcus, Los Altos CA - PHD
Specialties:
Psychology
Address:
1471 Hollidale Ct, Los Altos 94024
(650) 962-1987 (Phone), (650) 962-1987 (Fax)
(650) 962-1987 (Phone), (650) 962-1987 (Fax)
Languages:
English
Ablation Of Rectal And Other Internal Body Structures
US Patent:
6077257, Jun 20, 2000
Filed:
Sep 20, 1996
Appl. No.:
8/717612
Inventors:
Stuart D. Edwards - Portola Valley CA
Steven Marcus - Los Altos CA
Steven Marcus - Los Altos CA
Assignee:
VidaCare, Inc. - Sunnyvale CA
International Classification:
A61M 3100
US Classification:
604506
Abstract:
The invention provides an apparatus and system for ablation of body structures or tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting energy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloons at upstream and downstream locations. Inflatable balloons also serve to anchor the catheter in place. A plurality of electrodes are disposed on the catheter and at least one such electrode is selected and advanced out of the catheter to penetrate and ablate selected tissue inside the body in the region of the rectum. The electrodes are coupled to sensors to determine control parameters of the body structure or tissue, and which are used by feedback technique to control delivery of energy for ablation or fluids for cooling or hydration. The catheter includes an optical path disposed for coupling to an external view piece, so as to allow medical personnel to view or control positioning of the catheter and operation of the electrodes. The catheter is disposed to deliver flowable substances for aiding in ablation, or for aiding in repair of tissue, such as collagen or another substance for covering lesions or for filling fissures.
Ablation Of Rectal And Other Internal Body Structures
US Patent:
2002018, Dec 5, 2002
Filed:
Jul 15, 2002
Appl. No.:
10/196504
Inventors:
Stuart Edwards - Portola Valley CA, US
Steven Marcus - Los Altos CA, US
Steven Marcus - Los Altos CA, US
International Classification:
A61B018/14
US Classification:
606/032000, 606/041000
Abstract:
The invention provides an apparatus and system for ablation of body structures or tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting energy. The environment for an ablation region is isolated or otherwise controlled by blocking gas or fluid using a pair of inflatable balloons at upstream and downstream locations. Inflatable balloons also serve to anchor the catheter in place. A plurality of electrodes are disposed on the catheter and at least one such electrode is selected and advanced out of the catheter to penetrate and ablate selected tissue inside the body in the region of the rectum. The electrodes are coupled to sensors to determine control parameters of the body structure or tissue, and which are used by feedback technique to control delivery of energy for ablation or fluids for cooling or hydration. The catheter includes an optical path disposed for coupling to an external view piece, so as to allow medical personnel to view or control positioning of the catheter and operation of the electrodes. The catheter is disposed to deliver flowable substances for aiding in ablation, or for aiding in repair of tissue, such as collagen or another substance for covering lesions or for filling fissures. The flowable substances are delivered using at least one lumen in the catheter, either from at least one hole in the catheter, from an area of the catheter covered by a microporous membrane, or from microporous balloons.