Charles David Fields

US Patent:

6539252, Mar 25, 2003

Filed:

Jan 26, 2000

Appl. No.:

09/491782

Inventors:

Charles Bruce Fields - Pittsburg CA
Phillip F. Burris - Lafayette CA 94549

Assignee:

Phillip F. Burris - San Diego CA

International Classification:

A61N 130

US Classification:

604 21, 604508, 604264

Abstract:

A method and apparatus for destroying blood borne pathogens is disclosed which utilizes a low intensity direct current to generate positive particles from various metals which destroy viral pathogens. A first electrode comprised of a metal such as silver is inserted into a patients venous system. Then, a second electrode is placed on the patients exterior in the vicinity of the first electrode. A low intensity direct current is applied to the first metal electrode which releases silver cations to be bonded to the virus, resulting in the denaturing of the virus. The first electrode is placed in the venous system of the infected patient via a catheter.

US Patent:

53579615, Oct 25, 1994

Filed:

May 12, 1993

Appl. No.:

8/061481

Inventors:

Charles B. Fields - Pittsburg CA
Gretchen K. Marchesani - San Jose CA

Assignee:

HDC Corporation - San Jose CA

International Classification:

A61B 502

US Classification:

128658

Abstract:

A flushing device comprises a catheter guidewire flushing apparatus comprising a connector having an insertion port, an outlet port and a flushing port. The invention allows a clinician to adjust the length of a catheter, to insert the catheter while flushing to maneuver the catheter through a tortuous blood vessel, and to easily remove the guidewire for safe disposal. The catheter can then be left in place in the blood vessel.

US Patent:

57760969, Jul 7, 1998

Filed:

Jun 6, 1996

Appl. No.:

8/660020

Inventors:

Charles Bruce Fields - Pittsburg CA

Assignee:

HDC Corporation - San Jose CA

International Classification:

A61M 300

US Classification:

604 43

Abstract:

A dual lumen vascular catheter with expanding side portal includes a cylindrical tubing with one or more lumens inside. An effusion portal is located on the side of the tubing at an end of one lumen. The portal is oval-shaped, with an open-ended slit connected to an end of the oval opening. The slit is thereby expandable, allowing for vacuum relief during aspiration of blood in the event that the catheter is lodged with the portal pressed against an inner wall of the vein.

US Patent:

60664894, May 23, 2000

Filed:

Aug 30, 1996

Appl. No.:

8/708083

Inventors:

Charles Bruce Fields - Pittsburg CA
Phillip F. Burris - Lafayette CA

Assignee:

Arrow International, Inc. - Reading PA

International Classification:

A61B 1806
A61B 1812

US Classification:

435236

Abstract:

A method and apparatus for destroying blood borne pathogens is disclosed which utilizes a low intensity direct current to generate positive particles from various metals which destroy viral pathogens. A first electrode comprised of a metal such as silver is inserted into a patient's venous system. Then, a second electrode is placed on the patient's exterior in the vicinity of the first electrode. A low intensity direct current is applied to the first metal electrode which releases silver cations to be bonded to the virus, resulting in the denaturing of the virus. The first electrode is placed in the venous system of the infected patient via a catheter.

US Patent:

58239618, Oct 20, 1998

Filed:

Jun 5, 1996

Appl. No.:

8/665033

Inventors:

Charles Bruce Fields - Pittsburg CA
Gretchen Keser Marchesani - San Jose CA

Assignee:

HDC Corporation - San Jose CA

International Classification:

A61B 500

US Classification:

600434

Abstract:

A flushing device comprises a catheter guidewire flushing apparatus comprising a connector having an insertion port, an outlet port and a flushing port and a catheter having rails extending the length thereof. The invention allows a clinician to adjust the length of a catheter, to insert the catheter while flushing to maneuver the catheter through a tortuous blood vessel, and to easily remove the guidewire for safe disposal. The catheter can then be left in place in the blood vessel.