Wrist and finger worn pulse oximetry system
Inventors
Al-Ali, Ammar • Dejong, Chad A. • Scruggs, Stephen • Schramm, James Ford • Priddell, Richard • Hwang, Sujin • Ambrosini, Mitchell Lloyd
Assignees
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Publication Number
US-12440128-B2
Publication Date
2025-10-14
Expiration Date
Abstract
A pulse oximetry system includes a wrist portion configured for placement on a wrist of a subject, the wrist portion having a first component and a second component configured to removably secure to one another. The wrist portion can include emitter(s) and detector(s) operably positioned by the wrist portion. In some implementations, the pulse oximetry system further includes a ring member configured to secure around the subject's finger and operably position emitter(s) and detector(s) and a cable connected to the wrist portion in electrical communication with the emitter(s) and the detector(s) of the ring member and configured to transmit the signal(s) from the detector(s) to the wrist portion. The system includes a battery and hardware processor(s) configured to receive and process signal(s) outputted by the detector(s) to determine physiological parameter(s) of the subject.
Core Innovation
The invention provides a pulse oximetry system configured to secure to a wrist and measure blood oxygen saturation at a tissue site on a finger of a subject. The system includes a sensor dock assembly with a dock secured to the subject’s wrist and a ring member secured around the subject’s finger, with one or more emitters positioned by a first portion of the ring member and one or more detectors positioned by a second portion of the ring member opposite the first portion.
The emitters emit optical radiation into tissue, and the detectors detect at least a portion of the optical radiation after passing through the tissue and output at least one signal responsive to the detected optical radiation. A cable is connected to and extending from the dock in electrical communication with the emitters and the detectors to transmit the signal output by the detectors to the dock.
A sensor hub releasably connects to the dock and includes one or more hardware processors and a battery. When connected, the dock receives power from the battery and the processors receive and process the detector signal to determine at least one physiological parameter of the subject.
Claims Coverage
Two independent claims are explicitly provided. They cover a wrist-secured pulse oximetry system with a finger ring carrying optical emitters and opposing detectors, a cable transmitting detector output signal to the dock, and a releasably connected sensor hub that powers the dock and processes detector signals to determine at least one physiological parameter.
Wrist-secured dock with finger ring sensor geometry
A pulse oximetry system configured to secure to a wrist and measure blood oxygen saturation at a tissue site on a finger, including a sensor dock assembly with a dock secured to the wrist, a ring member secured around the subject’s finger, one or more emitters positioned by a first portion of the ring member, and one or more detectors positioned by a second portion opposite the emitter portion.
Opposing emitter and detector optical path across finger tissue
The emitters emit optical radiation into tissue of the finger; the detectors detect at least a portion of the optical radiation after passing through the tissue and output at least one signal responsive to the detected optical radiation.
Cable transmitting detector output signal to the dock
A cable connected to and extending from the dock is in electrical communication with the emitters and detectors and transmits the detector output signal to the dock.
Releasably connected sensor hub with battery and hardware processors
A sensor hub configured to releasably connect to the dock, the sensor hub comprising one or more hardware processors and a battery, wherein the dock assembly receives power from the battery and the hardware processors receive and process the detector signal to determine at least one physiological parameter.
Across the independent claims, the main inventive coverage centers on a wrist-secured dock assembly and a finger ring member that position emitters and opposing detectors across the finger tissue optical path, together with a cable transmitting detector signals to the dock and a sensor hub that releasably connects to power and process the detector signals to determine physiological parameters.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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