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Patent Publication Number: US 20100076282 A1

Title: Medical sensor and technique for using the same

Filing Date: September 25, 2008

Priority Date: September 25, 2008

Inventor(s): Donald Sandmore

Original Assignee / Applicant(s): Nellcor Puritan Bennett Llc

Link to Patent: US20100076282A1


This invention discloses a medical device for sensing and monitoring physiological parameters of a patient by placing a sensor, like a pulse oximetry sensor, in close contact with a patient's skin or any other tissue. In one embodiment, such a device is presented in the form of a hat or a headband. In order to ensure that excessive force greater than that required to keep the pulse oximetry sensor in contact with the tissue is not exerted by the device, Pressurex film, of Sensor Products, Inc., is placed on the inner surface of the hat. The Pressurex film increases in the intensity of its red color as a function of the amount of force applied. Based on this observation, a patient or a caregiver can adjust the sensor assembly so that less pressure is exerted on the tissue or may choose a larger hat to fit the patient.