Patent ID: 11903682
Assignee: J&M SHULER, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A spectrophotometric-based system for monitoring blood perfusion in a limb, the system comprising:
a first near-infrared sensor configured for application to a target compartment of a target limb and a second near-infrared sensor configured for application to a contralateral compartment of a contralateral limb, wherein each of the first near-infrared sensor and the second near-infrared sensor comprises:
a light source for emitting near-infrared energy into a compartment of tissue;
a light receiver for receiving near-infrared energy exiting the compartment of tissue; and
an alignment mechanism;

a visual display device in electronic communication with the first near-infrared sensor and the second near-infrared sensor, wherein the visual display device is configured to:
at startup, and before receipt of any readings from the first and second near-infrared sensors, provide to a user on-screen instructions for using the alignment mechanisms of the first and second near-infrared sensors to orient each, respectively, with the target compartment and the contralateral compartment;
display hemoglobin oxygen saturation readings received from each of the first near-infrared sensor and the second near-infrared sensor; and
indicate, by an audible and/or visual alarm output in addition to the oxygen saturation readings, compartment syndrome in the target compartment of the target limb when a first hemoglobin oxygen saturation reading associated with the first near-infrared sensor equals or is less than a second hemoglobin oxygen saturation reading associated with the second near-infrared sensor.