Flexible patient monitoring system featuring a multiport transmitter

• US 5,687,734 A
• Filed: 10/20/1994
• Issued: 11/18/1997
• Est. Priority Date: 10/20/1994
• Status: Expired due to Term

• Current Assignee: Philips Electronics North America Corporation (Koninklijke Philips N.V.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Snyder, Robert J., Dempsey, Michael K., Kotfila, Mark S.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US08/326,614
• Time in Patent Office: 1,125 Days
• Field of Search: 128/630, 128/637, 128/639, 128/653.1, 128/668, 128/670, 128/687, 128/690, 128/695, 128/696, 128/700, 128/709, 128/716, 128/897, 128/903, 128/904, 128/906, 607/5, 364/443.02, 364/443.03, 364/443.04, 364/443.06
• US Class Current: 600/509
• CPC Class Codes: A61B 2560/0456 Apparatus provided with a docking unit
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

A flexible patient monitoring system which interfaces a telemetry subsystem with a network by way of a telemetry transmission receiving system and a network controller. The telemetry subsystem includes one or more monitoring instruments, a multiport transmitter, a telemetry subsystem interface, a backchannel receiver module, and a telemetry docking station. The flexible patient monitoring system may be configured to operate in at least four modes: ambulatory telemetry mode, wherein the multiport transmitter is operated independently of other monitoring instruments and is powered by an internal power source; docked telemetry mode, wherein the multiport transmitter is connected to the telemetry docking station for transfer of data and power; simple instrument telemetry mode, wherein the multiport transmitter and a primary monitoring instrument or an auxiliary monitoring instrument are connected together for transfer of data; and docked instrument telemetry mode, wherein the multiport transmitter and a primary monitoring instrument or an auxiliary monitoring instrument are attached to the telemetry docking station for transfer of data (and optionally for transfer of power to the multiport transmitter). Wireless communications between the telemetry subsystem and various nodes on the network are thus enabled. Information may be provided to and from the telemetry subsystem interface via the multiport transmitter.

Claims

1. A flexible patient monitoring system for use in monitoring a selected plurality of physiological conditions of a patient in a medical care environment, comprising:

a multiport transmitter including as integral components therein;

a sensor system for providing a sense signal representative of the selected plurality of physiological conditions;

a monitoring section connected to the sensor system for receiving the sense signal and providing sense data representative of the plurality of physiological conditions,

a first data port for receiving first data and a second data port for receiving second data;

a data processing and signal transmission section operatively connected to the monitoring section and first and second data ports for processing the sense data and the first and second data so as to provide processed data, and for transmitting the processed data as a telemetry signal; and

a housing for integrating said sensor system, monitoring section, first and second data ports, and data processing and signal transmission section in a portable unit, said multiport transmitter thereby being optionally borne by the patient while said plurality of physiological conditions are monitored.

2. The flexible patient monitoring system of claim 1, further comprising a monitoring instrument, wherein the first data port includes means for connecting at least a selected one of said first and second data ports to the monitoring instrument for thereby receiving said first data from the monitoring instrument, said multiport transmitter thereby being optionally connectable to the monitoring instrument while said plurality of physiological conditions are monitored.

3. The flexible patient monitoring system of claim 1, further comprising a monitoring instrument, wherein the sensor system includes means for connecting the sensor system to the monitoring instrument for thereby receiving a selected one of said first and second data from the monitoring instrument, said multiport transmitter thereby being optionally connectable to the monitoring instrument while said plurality of physiological conditions are monitored.

4. The flexible patient monitoring system of claim 1, wherein the data processing and signal transmission section include means for outputting the processed data from at least a selected one of said first and second data ports, and further comprising a telemetry subsystem interface having a data input device, a data output device, an interface data input/output section, a docking station data port associated with said data input/output section, and a processor, wherein the selected one of first and second data ports includes means for connecting the multiport transmitter with a selected one of the data input device and the data output device on the telemetry subsystem interface for transfer of the processed data therebetween, and wherein the processor includes means for selectably outputting the processed data to the data output device.

5. The flexible patient monitoring system of claim 4, wherein the selected one of the data input device and the data output device, and the means for connecting the multiport transmitter with a selected one of the data input device and the data output device each further comprise an optical transceiver for transferring the processed data therebetween on a modulated light beam.

6. The flexible patient monitoring system of claim 4, wherein the telemetry subsystem interface further comprises a portable computer.

7. The flexible patient monitoring system of claim 6, wherein the portable computer further comprises a palmtop computer.

8. The flexible patient monitoring system of claim 1, wherein the data processing and signal transmission section include means for outputting said processed data from at least a selected one of said first and second data ports, and further comprising a telemetry docking station having data transfer means for connecting the telemetry docking station to the selected one of said first and second data ports for transferring at least a selected one of said first data, second data, and said processed data between said multiport transmitter and said telemetry docking station.

9. The flexible patient monitoring system of claim 8, wherein the multiport transmitter further comprises a power port for receiving operating power and supplying such operating power to at least one of said sensor system, monitoring section, and data processing and signal transmission section, and wherein the telemetry docking station further comprises:

a power section for receiving externally-sourced power;

an isolation section connected to the power section and having a power converter for converting the externally-sourced power to isolated power; and

a second power port connected to the isolation section and being connectable to the power port for transferring isolated operating power therebetween.

10. The flexible patient monitoring system of claim 9, wherein the isolation section further comprises means for transferring at least one of said first data, second data, and said processed data between the multiport transmitter and the telemetry docking station, and wherein the isolation section further comprises a data isolator for receiving and isolating the data thus transferred.

11. The flexible patient monitoring system of claim 10, further comprising a monitoring instrument, and wherein the data transfer means includes means for transferring at least one of said first data, second data, and said processed data between the multiport transmitter and the monitoring instrument.

12. The flexible patient monitoring system of claim 10, further comprising a telemetry subsystem interface, and wherein the data transfer means includes means for transferring at least one of said first data, second data, and said processed data between the multiport transmitter and the telemetry subsystem interface.

13. The flexible patient monitoring system of claim 10, further comprising a telemetry subsystem interface, and wherein the data transfer means includes means for connecting the telemetry docking station to the telemetry subsystem interface for transferring at least one of said first data, second data, and said processed data between said multiport transmitter and said telemetry subsystem interface.

14. The flexible patient monitoring system of claim 8, further comprising:

a telemetry receiving system for receiving and processing the telemetry signal so as to provide telemetry information;

a network controller operatively connected to the telemetry receiving system for providing networked telemetry information from said telemetry information; and

a communications network having an information access device, a first node, and a second node, said first node being connected to the network controller for receiving the networked telemetry information and said information access device being connected to the second node for accessing the networked telemetry information.

15. The flexible patient monitoring system of claim 14,

wherein the flexible patient monitoring system may be configured to operate in at least one of four modes:

ambulatory telemetry mode, wherein the multiport transmitter is operated independently of the monitoring instrument and the telemetry docking station;

docked telemetry mode, wherein the multiport transmitter is connected to the telemetry docking station for transfer of data and power between the multiport transmitter and the docking station;

simple instrument telemetry mode, wherein the multiport transmitter and the monitoring instrument are connected together for transfer therebetween of said selected one of said first, second, and processed data; and

docked instrument telemetry mode, wherein the multiport transmitter and the monitoring instrument are connected to the telemetry docking station for transfer of said selected one of said first, second, and processed data between the multiport transmitter, the telemetry docking station, and the monitoring instrument.

16. A multiport transmitter for use in a flexible patient monitoring system for monitoring a selected plurality of physiological conditions of a patient in a medical care environment, the system including a first monitoring instrument for monitoring at least one of said selected plurality of physiological parameters and providing a respective first instrument signal, comprising as integral components therein:

a sensor including means for connecting the multiport transmitter in a first mode to the monitoring instrument for acquiring an instrument signal, and means for connecting the multiport transmitter in a second mode to the patient for acquiring a patient parameter signal;

a sensor interface connected to the sensor and operable in the first mode for selecting the instrument signal from the sensor and in a second mode for selecting the patient parameter signal from the sensor, and in response providing a selected monitor signal;

a processing section connected to the sensor interface for processing the selected monitor signal and for providing, in response to said processing, processed data;

a data output port connected to the processing section for outputting the processed data; and

a radio frequency transmitter connected to the data output port for transmitting the processed data as a telemetry signal.

17. The multiport transmitter of claim 16, wherein the flexible patient monitoring system includes a second monitoring instrument, and wherein the multiport transmitter further comprises a second monitoring instrument data input port connected to the sensor interface for receiving a second instrument signal from the second monitoring instrument, and wherein the sensor interface is operable in a third mode for selecting the second instrument signal, and in response providing the second instrument signal as the selected monitor signal.