Wearable portable patient monitor

Patent metadata

Field	Value
Publication number	US-9795300-B2
Application number	US-201715499716-A
Country	US
Kind code	B2
Filing date	Apr 27, 2017
Priority date	Mar 25, 2002
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A wearable, portable physiological monitor configured to wirelessly transmit real time information regarding a plurality physiological parameters. The portable monitor includes a plurality of sensor ports, where at least a first sensor port is positioned on a side of a housing of the portable monitor such that, when the portable monitor is attached to an arm of a patient, a wired connection extending from the first sensor port to a first physiological sensor positioned on a digit of the patient follows a path to the digit of the patient that avoids tangling of the wired connection. The portable monitor further includes one or more processing devices configured to cause display of parameter values, combine information indicative of the signals into a single word or bit stream, and encode and generate a baseband signal. Further includes a transmitter to modulate the baseband signal and wirelessly transmit.

First claim

What is claimed is:

1. A wearable, portable physiological monitor configured to wirelessly transmit real time information regarding a plurality physiological parameters, the portable monitor comprising:
a plurality of sensor ports positioned on a housing of the portable monitor and configured to provide respective wired interfaces with different respective physiological sensors of a plurality of physiological sensors, wherein:
at least a first sensor port of the plurality of sensor ports is positioned on a side of the housing of the portable monitor such that, when the portable monitor is attached to an arm of a patient, a wired connection extending from the first sensor port to a first physiological sensor positioned on a digit of the patient follows a path to the digit of the patient that is substantially perpendicular to the side of the housing and avoids tangling of the wired connection;

one or more processing devices configured to:
receive, via the plurality of sensor ports, a plurality of signals from the plurality of physiological sensors, at least some of the plurality of signals including digital information, and at least some of the plurality of signals including analog information;
cause to be displayed, on a display of the portable monitor, a plurality of physiological parameters values responsive to the plurality of signals;
combine information indicative of the plurality of signals into a single digital word or bit stream; and
encode the single digital word or bit stream to generate a baseband signal; and

a transmitter configured to:
modulate the baseband signal with a carrier to generate a transmit signal; and
wirelessly transmit the transmit signal to a remote patient monitoring device configured to decode the signal and display, on a remote display, the plurality of physiological parameters values responsive to the plurality of signals.

2. The portable monitor of claim 1 , wherein the one or more processing devices are further configured to:
process, at least in part in the analog domain, at least a first signal of the plurality of signals to determine at least a first one or more of the plurality of physiological parameters values; and
process, at least in part in the digital domain, at least a second signal of the plurality of signals to determine at least a second one or more of the plurality of physiological parameters values.

3. The portable monitor of claim 2 , wherein the first signal is received via the first sensor port from the first physiological sensor.

4. The portable monitor of claim 3 , wherein the first physiological sensor comprises a pulse oximetry sensor.

5. The portable monitor of claim 4 , wherein the first one or more of the plurality of physiological parameters values comprises at least oxygen saturation and pulse rate.

6. The portable monitor of claim 2 , wherein the one or more processing devices comprise:
a multiplexer configured to combine the information indicative of the plurality of signals into the single digital word or bit stream; and
an encoder configured to encode the single digital word or bit stream to generate the baseband signal.

7. The portable monitor of claim 6 , wherein the baseband signal comprises a single signal.

8. The portable monitor of claim 6 , wherein the baseband signal comprises multiple related signal components including at least one of: in-phase signals or quadrature signals.

9. The portable monitor of claim 6 , wherein the transmitter is further configured to transmit on multiple frequency channels.

10. The portable monitor of claim 1 , wherein the plurality of sensor ports comprise at least:
a second sensor port configured to receive a signal from an EKG sensor arrangement; and
a third sensor port configured to receive a signal from a blood pressure sensor arrangement.

11. The portable monitor of claim 10 further comprising:
a plurality of sensor interfaces configured to receive the plurality of signals and initially process the plurality of signals, wherein:
each of the plurality of sensor interfaces is associated with a respective sensor port of the plurality of sensor ports, and
each of the plurality of sensor interfaces is configured to receive a signal from a respective physiological sensor of the plurality of physiological sensors.

12. The portable monitor of claim 1 , wherein a face of the housing comprises a single user interface, and the face of the housing is viewable by a user when the portable monitor is attached to the arm of the patient.

13. The portable monitor of claim 12 , wherein the single user interface comprises the display.

14. The portable monitor of claim 13 , wherein the display is positioned centrally on the face of the housing.

15. The portable monitor of claim 14 , wherein the display positioned on the face of the housing is sized such that the display covers more than half of a length of a shortest dimension of the face of the housing.

16. A battery-powered wearable physiological monitoring device configured to communicate with multiple types of sensor arrangements via a plurality of sensor interfaces, the wearable physiological monitoring device comprising:
a plurality of sensor communication ports including:
a first sensor communication port configured to provide wired communication with a first type of physiological sensor arrangement, wherein the first sensor port is positioned on the device such that a wire extending from the first sensor communication port to the first type of physiological sensor arrangement extends from the device along an axis perpendicular to a face of the device upon which the first sensor port is positioned;
a second sensor communication port configured to provide wired communication with a second type of physiological sensor arrangement different from the first type of physiological sensor arrangement; and
a third sensor communication port configured to provide wired communication with a third type of physiological sensor arrangement different from both the first and second types of physiological sensor arrangements;

a plurality of sensor interfaces including:
a first sensor interface configured to receive a first signal from a first sensor arrangement of the first type, the first signal including analog information;
a second sensor interface configured to receive a second signal from a second sensor arrangement of the second type the second signal including digital information; and
a third sensor interface configured to receive a third signal from a third sensor arrangement of the third type;
wherein the plurality of sensor interfaces are configured to output one or more signals indicative of physiological parameters sensed by the first, second, and third sensor arrangements;

a display positioned on a face of the wearable physiological monitoring device configured to display information while the wearable physiological monitoring device is being worn by a patient;
a processor configured to:
responsive to the one or more signals indicative of the physiological parameters, cause to be displayed, on the display, physiological parameter measurements;
combine information indicative of the one or more signals into a single digital word or bit stream; and
encode the single digital word or bit stream to generate a baseband signal;

a transmitter configured to:
modulate the baseband signal with a carrier to generate a transmit signal; and
wirelessly transmit the transmit signal to a receiving patient monitoring device that is not wired to the wearable physiological monitoring device; and

a battery configured to provid

Assignees

• Masimo Corp

Inventors

• Al-Ali Ammar

Classifications

• A61B5/0205

  Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition · CPC title

• A61B5/0024 Primary

  for multiple sensor units attached to the patient, e.g. using a body or personal area network · CPC title

• A61B5/742

  using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339) · CPC title

• A61B2560/0214

  of power generation or supply · CPC title

• A61B5/0015

  characterised by features of the telemetry system · CPC title