Critikon, Inc

Critkon, Inc.

Jeffrey A Baker

Josef K Tan

John J George

Daniel A Jones

J Kie Tan

Pawel J Beczkiewicz

A finger sensor for a pulse oximetry system is provided having a body of flexible, resilient polymeric material formed as a pocket. On the inside walls of the pocket toward the closed end are a LED light source and an opposing photodetector. The space within the pocket transverse to the longitudinal dimension of the pocket exhibits a relatively smaller width and a relatively greater width. As a finger is inserted into the pocket with the fingertip between the LED and the photodetector, the relatively smaller width of the pocket expands and the relatively greater width of the pocket decreases. This expansion and decrease of the pocket dimensions are resisted by the resilient polymeric material, causing the walls of the pocket containing the LED and the photodetector to securely contact and retain the finger within the pocket. The pocket preferably comprises a pocket having major walls containing the light source and photodetector adjoined on the longitudinal sides of the sensor by expansive side panels which expand and contract to engage fingers of varying sizes.

Finger sensor for pulse oximetry system

A pulse oximeter sensor is provided in which the wrap which encloses and secures the light source and detector to the body includes a sheet of metallized material. The metallized material reflects body heat back to the body and provides opacity to interfering ambient light. The wrap may be formed in a 'T' shape, with the light sensor and detector aligned with the stem of the 'T', or in a disposable elongated configuration with the light sensor and detector longitudinally aligned with the wrap. The wrap is secured during use through either adhesive means or by the use of hook and loop fabric patches.

Pulse oximeter sensor

Growing community of inventors

Lutz, FL, United States of America

Jeffrey A Baker