Xerox Corporation

George R Hsu

John A Creatura

Pinyen Lin

Scott M Silence

Bernard A Kelly

Xiaoyu Zheng

Brian E Moore

Morris M DeYoung, Jr

Lynne M Tatar

A device for securing and monitoring movement of a catheter includes a film having an adhesive disposed on a body-facing surface for securing the film to a body. The device also includes a base mounted on the film, the base comprising a first portion of a guide channel for receiving the catheter. A cover is coupled to the base via a hinge, the cover comprising a second portion of the guide channel, the cover further comprising a rounded portion extending from a distal end of the cover, wherein in the closed configuration, the catheter is completely enclosed by the rounded portion and the first and second portions of the guide channel. The device also includes a positional shift indicator fixedly attached to the catheter and configured to indicate positional shifts by the catheter within the guide channel.

Devices for monitoring movement of a secured catheter during a procedure

A coated carrier having a core particle coated with a mixture of an electronegative insulating polymer comprising a polyvinylidenefluoride polymer or copolymer and an electropositive conductive polymer comprising a polymethyl methacrylate polymer or copolymer with a conductive material dispersed therein is made by powder coating. The coated carrier has unique properties, including a conductivity of from 1.1&times;10,to 1.0&times;10,mho-cm,, a triboelectric charging value of from 12 to 20 and an average particle diameter of from 65 to 75, rendering the coated carrier ideal for use in a developer to be used in a magnetic brush type development apparatus. The powder coating method includes mixing the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer adheres to the core particle, heating the mixture of the core particle and the mixture of negatively charging polymer and conductive polymer until the mixture of negatively charging polymer and conductive polymer melts and fuses to the core particle, and cooling the coated core obtained.

Polymer coated carrier particles for electrophotographic developers

A carrier core for use in an electrostatographic developer composition is a ferrite substantially free of copper and zinc. By being substantially free of copper and zinc, the carrier core is environmentally friendly and eliminates the need for use of conventional copper zinc carrier cores which must be handled as hazardous waste. Developer compositions employing the ferrite carrier core possess suitable properties.

Environmentally friendly ferrite carrier core, and developer containing

A toner comprised of resin, colorant, grinding compound, and wax.

Toner compositions

A carrier composition comprised of a core with a coating thereover comprised of a mixture of first and second polymers that are not in close proximity thereto in the triboelectric series.

Imaging with developer compositions with coated carrier particles

Disclosed is a carrier and developer composition, and a process for the preparation of carrier particles with substantially stable conductivity parameters which comprises (1) providing carrier cores and a polymer mixture, (2) dry mixing the cores and the polymer mixture, (3) heating the carrier core particles and polymer mixture, whereby the polymer mixture melts and fuses to the carrier core particles; and (4) thereafter cooling the resulting coated carrier particles.

Electrophotographic coated carrier particles and methods thereof

Developer compositions with coated carrier particles

Disclosed is a carrier and developer composition, and a process for the preparation of carrier particles with substantially stable conductivity parameters which comprises (1) providing carrier cores and a polymer mixture; (2) dry mixing the cores and the polymer mixture; (3) heating the carrier core particles and polymer mixture, whereby the polymer mixture melts and fuses to the carrier core particles; and (4) thereafter cooling the resulting coated carrier particles.

Growing community of inventors

Rochester, NY, United States of America

George R Hsu