Metabolic and cardiopulmonary monitor
A system includes a control unit configured to be worn by a subject including one or more processors operatively coupled to a memory, a wireless transceiver, and a power supply for powering the one or more processors. The system also includes a computing device independent of the control unit including one or more processors operatively coupled to a memory, a wireless transceiver in communication with the wireless transceiver of the control unit, and a display. The system further includes at least one primary sensor and at least one secondary sensor mountable relative to the subject configured to generate respective primary and secondary signals and to communicate the primary and secondary signals to one of the control unit and the computing device.
1 . A system, comprising:
a control unit configured to be worn by a subject, the control unit comprising:
one or more processors operatively coupled to a memory;
a wireless transceiver; and
a power supply for powering the one or more processors;
a computing device independent of the control unit, the computing device comprising:
one or more processors operatively coupled to a memory;
a wireless transceiver in communication with the wireless transceiver of the control unit; and
a display; and
at least one primary sensor mountable relative to the subject, the at least one primary sensor being configured to generate one or more primary signals representative of a respiratory volume of the subject, and to communicate the one or more primary signals to one of the control unit and the computing device;
one or more secondary sensors mountable relative to the subject, a given sensor of the one or more secondary sensors being configured to generate one or more secondary signals distinct from the one or more primary signals and representative of a flow velocity of a respiratory stream of the subject, and to communicate the one or more secondary signals to one of the control unit and the computing device; and
a sampling module including an interfacing component configured for fluid coupling to the respiratory stream of the subject, the interfacing component comprising a manifold comprising a flow channel configured for directing a flow of the respiratory stream of the subject, the flow channel comprising a support structure comprising a first portion extending across the flow channel in a first direction and a second portion extending across the flow channel in a second direction different than the first direction, wherein the at least one secondary sensor is mounted on the first portion of the support structure and one or more sample ports are mounted on the second portion of the support structure.
2 . The system of claim 1 , wherein the one or more primary signals are one or more volumetric signals.
3 . The system of claim 2 , wherein the one or more volumetric signals are communicated to the control unit.
4 . The system of claim 3 , wherein the one or more processors of the control unit are configured to generate one or more signals corresponding to the one or more volumetric signals, and wherein the one or more corresponding signals are transmitted to the wireless transceiver of the computing device.
5 . The system of claim 4 , wherein the one or more processors of the computing device are configured to cause the display of data, associated with the one or more signals corresponding to the one or more volumetric signals, on the display.
6 . The system of claim 2 , further comprising a plurality of respiratory volume sensors, each respiratory volume sensor mounted to an attachment member, each attachment member being configured for securement relative to the chest or abdomen of the subject.
7 . The system of claim 1 , wherein a second given sensor of the one or more secondary sensors comprises one of a heart-rate sensor, an EKG sensor, an EMG sensor, a galvanic skin response sensor, a pulse oximeter, a core temperature sensor and a cardiac output sensor.
8 . The system of claim 1 , further comprising an ear bud mountable relative to an ear of the subject, the ear bud comprising at least one of a speaker and a bud sensor in communication with the control unit.
9 . The system of claim 1 , wherein the interfacing component is configured for at least partial insertion in a nasal cavity or an oral cavity of the subject.
10 . The system of claim 9 , further comprising one or more sensory elements coupled to the interfacing component, the one or more sensory elements being configured to measure one or more physiological or dimensional parameters of the nasal cavity or the oral cavity of the subject.
11 . The system of claim 9 , wherein the given sensor of the one or more secondary sensors includes at least one sensing membrane disposed within the interfacing component, the at least one sensing membrane being configured to generate a response dependent upon one or more properties of the respiratory stream.
12 . The system of claim 11 , wherein the at least one sensing membrane is configured to detect a presence of an analyte in the respiratory stream.
13 . The system of claim 12 , further comprising a detector in communication with the at least one sensing membrane, the detector configured to generate one or more analyte signals related to the analyte.
14 . The system of claim 13 , wherein the one or more analyte signals is transmitted to the control unit and wherein the control unit is configured to generate one or more signals corresponding to the one or more analyte signals, and wherein the one or more corresponding signals are transmitted to the wireless transceiver of the computing device.
15 . The system of claim 14 , wherein the one or more processors of the computing device are configured to cause the display of data, associated with the one or more signals corresponding to the one or more analyte signals, on the display.
16 . The system of claim 1 , wherein the control unit further comprises one or more gas sensors arranged in operable fluid communication with the respiratory stream, and configured to analyze at least one of metabolic and physiological parameters of the respiratory stream.
17 . The system of claim 1 , wherein the flow channel has a changing profile configured to slow or accelerate flow through the manifold.
18 . The system of claim 1 , wherein at least one of the first portion and the second portion of the support structure provides a partial obstruction of flow through the flow channel.
19 . The system of claim 18 , wherein the one or more sample ports are configured to extract a breath gas sample from the respiratory stream of the subject.
20 . The system of claim 19 wherein at least one of the one or more sample ports is in fluid communication with one or more pressure transducers configured to capture a differential pressure reading relating to one or more characteristics of the respiratory stream of the subject.