Patent ID: 11864909
Assignee: BBI MEDICAL INNOVATIONS, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 14:
15. An apparatus for assessing perfusion of blood in tissue below a patient's skin, comprising:
an emitter configured to emit light at a first wavelength and a second wavelength when activated,
wherein the emitter comprises a first source that emits light at the first wavelength and a second source that emits light at the second wavelength,
a first receiver configured to measure a first intensity of received light at the first wavelength and a second intensity of received light at the second wavelength and provide a first signal comprising information about the first and second intensities of the received light, wherein the first receiver comprises a first detector that senses light at the first wavelength and a second detector that senses light at the second wavelength,
a substrate coupled to the emitter and the first receiver and configured such that the emitter and first receiver can be placed in simultaneous contact with the patient's skin, and
a processor coupled to each of the first detector and the second detector of the first receiver and configured to:
receive the first signal, wherein the first signal comprises individual signals from the first and second detector,
determine a first summation value of the first and second intensities of the received light, and
determine a level of perfusion of the tissue from the first summation value.