Brian B Liu

US Patent:

20120035414, Feb 9, 2012

Filed:

Apr 22, 2009

Appl. No.:

12/989253

Inventors:

Antonio Santillan - El Paso TX, US
Robert E. Bristow - Baltimore MD, US
Joshua Liu - Naperville IL, US
Gayathree Murugappan - Troy MI, US
Anshuman Gupta - San Jose CA, US
Brian G. Liu - College Station TX, US
Sameer S. Manek - Naperville IL, US
Michael R. Bisogno - Smithtown NY, US
Kevin Yeh - Corvallis OR, US
Vicki Zhou - Las Vegas NV, US

Assignee:

THE JOHNS HOPKINS UNIVERSITY - Baltimore MD

International Classification:

A61B 19/00

US Classification:

600 37

Abstract:

The invention provides a device for bowel packing having an essentially elliptical shape that is essentially symmetrical along a minor axis of the ellipse, and the device includes a notch located on the minor axis below the major axis. The device is composed of material comprising an elastomeric polymer and the device is appropriately sized for retaining the intestines of a mammal. The invention further provides methods of use of the devices of the invention for bowel packing. The invention further provides methods for increasing bowel packing speed, increasing effectiveness of bowel retention, decreasing the formation of post-operative intraperitoneal adhesions, and increasing temperature of the abdominal cavity during surgery by use of the device.

US Patent:

6374032, Apr 16, 2002

Filed:

Apr 22, 1999

Appl. No.:

09/299553

Inventors:

Hongwei Mao - San Jose CA
Jian Chen - San Jose CA
Brian Liu - San Jose CA

Assignee:

JDS Uniphase Corporation - San Jose CA

International Classification:

G02B 600

US Classification:

385140, 385 25, 359236

Abstract:

A variable optical attenuator is described. A special profile blocker is rotated across a large angel (e. g. , 180Â to 360Â) to provide a variable amount of attenuation. In one embodiment, the special profile blocker is an eccentrically driven wheel. The special profile blocker is driven by a stepper motor via a gear assembly. In one embodiment, the variable optical attenuator includes a beam splitter for the input and/or the output signal for monitoring of signal strength and/or feedback control of the attenuator.