Patent ID: 8437826
Filing Date: 2013-05-07
Classification: A61B

Abstract:
1. A sensor adapted to be applied to a patient's tissue comprising: a sensor body having a first portion and a second portion biased towards one another by a spring force; a resilient material disposed on the first portion of the sensor body; at least one sensing element disposed on a substrate, wherein the substrate is associated with an opposing surface of the resilient material such that the resilient material is between the substrate and the sensor body; and a stopping element configured to contact the first portion and the second portion when the sensor is applied to the patient's tissue, wherein the stopping element is capable of establishing a minimum distance between the first portion and the second portion and wherein a portion of the spring force is configured to be absorbed by the resilient material when the sensor is applied to the patient's tissue such that the sensor body applies a pressure that is sufficient to overcome a venous pressure but not an arterial pressure of the patient.