James E Lock

US Patent:

54861934, Jan 23, 1996

Filed:

May 1, 1995

Appl. No.:

8/432971

Inventors:

George Bourne - Libertyville IL
Randall W. Davis - Chelmsford MA
George Duval - New Ipswich NH
Dennis Goodine - Dracut MA
James E. Lock - Newton MA
Gerry Ouellette - Framingham MA
Stanton B. Perry - Marblehead MA
Maria Wagner - Groton MA
Gregory R. Whittaker - Burlington MO

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 2900

US Classification:

606194

Abstract:

A system for percutaneous transluminal front-end delivery of a collapsible prosthetic occluder includes a front-end loading portion, a control assembly and an introducer. The front-end loading portion includes a tapering lumen portion and a smaller diameter distal lumen portion. An infusion port communicates with the distal lumen portion immediately adjacent the distal end of the tapering lumen portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. The distal end of the front-end loading portion lumen is inserted into the proximal end of an introducer. A control assembly advances the occluder through the front-end loading portion, the introducer and into the defect site.

US Patent:

56265999, May 6, 1997

Filed:

May 1, 1995

Appl. No.:

8/431582

Inventors:

George Bourne - Libertyville IL
Randall W. Davis - Chelmsford MA
George Duval - New Ipswich NH
Dennis Goodine - Dracut MA
James E. Lock - Newton MA
Gerry Ouellette - Framingham MA
Stanton B. Perry - Marblehead MA
Maria S. Wagner - Groton MA
Gregory R. Whittaker - Burlington MO

International Classification:

A61M 2900

US Classification:

606194

Abstract:

A method for percutaneous transluminal front-end delivery of a collapsible prosthetic occluder using a front-end loading portion, a control assembly and an introducer sheath. The prosthetic device is collapsed in a lumen of a front-end loading portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. Fluid is then infused through a port extending into the front-end loading portion in communication with the front-end loading portion lumen to remove air bubbles from the collapsed prosthetic device. The prosthetic device is advanced using a control assembly from the front-end loading portion into the introducer and ultimately into the defect site.

US Patent:

56499507, Jul 22, 1997

Filed:

May 1, 1995

Appl. No.:

8/431451

Inventors:

George Bourne - Libertyville IL
Randall W. Davis - N. Chelmsford MA
George Duval - New Ipswich NH
Dennis Goodine - Dracut MA
James E. Lock - Newton MA
Gerry Ouellette - Framingham MA
Stanton B. Perry - Marblehead MA
Maria Wagner - Groton MA
Gregory R. Whittaker - Burlington MA

International Classification:

A61M 2900

US Classification:

606194

Abstract:

A system for percutaneous transluminal front-end delivery and retrieval of a collapsible prosthetic occluder includes a front-end loading portion, a control assembly and an introducer and retrieval sheath assembly. The front-end loading portion includes a tapering lumen portion and a smaller diameter distal lumen portion. An infusion port communicates with the distal lumen portion immediately adjacent the distal end of the tapering lumen portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. The distal end of the front-end loading portion lumen is inserted into the proximal end of an introducer and retrieval sheath assembly. A control assembly advances the occluder through the front-end loading portion, the introducer and retrieval sheath assembly and into the defect site. The retrieval sheath assembly is less flexible than the introducer sheath and is sufficiently rigid to evert the deployed occluder when retracted thereagainst.

US Patent:

59561394, Sep 21, 1999

Filed:

Aug 4, 1997

Appl. No.:

8/905536

Inventors:

William V. Meyer - Lakewood OH
David S. Cannell - Santa Barbara CA
Padetha Tin - Strongsville OH
H. Michael Cheung - Hudson OH
J. Adin Mann - Cleveland Heights OH
Thomas W. Taylor - Cleveland OH
James A. Lock - Cleveland Heights OH
Jixiang Zhu - Bridgewater NJ
Anthony E. Smart - Costa Mesa CA

Assignee:

Ohio Aerospace Institute - Brook Park OH

International Classification:

G01N 2100

US Classification:

356338

Abstract:

A method and apparatus for analyzing a fluid containing light scattering components. The apparatus includes a laser adapted to direct abeam of light into the fluid such as a liquid containing particles, and at least two detectors to receive light scattered by the fluid, which received light is used to calculate a physical property of the fluid. A focusing lens may be used to focus the light beam to a focal waist in the fluid to enhance the degree of spatial coherence of the scattered light. The two detectors are aligned onto the focal waist and are adapted to send a signal to a data processor which correlates the signal received from said two detectors. The two detectors are spaced a substantially equal distance from the focal waist and are oriented at substantially the same angle with respect to the direction of propagation of the incident beam. The data processor is adapted to cross-correlate the signals received from the two detectors. A polarizer can be positioned between the focal waist and the two detectors to aid in positioning the detectors and to enhance the efficiency and speed of the measurement.