Wireless patient monitoring system

• US 8,480,577 B2
• Filed: 08/17/2005
• Issued: 07/09/2013
• Est. Priority Date: 04/15/2005
• Status: Active Grant

• Current Assignee: Ivy Biomedical Systems Inc
• Original Assignee: Ivy Biomedical Systems Inc
• Inventors: Tuccillo, Mark Joseph
• Primary Examiner(s): Thomson, Bill
• Assistant Examiner(s): Archer, Marie
• Application Number:
  US11/205,792
• Publication Number:
  US 20060235281A1
• Time in Patent Office: 2,883 Days
• Field of Search: 600/300, 600/301, 128903-905, 128/920
• US Class Current: 600/300
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/055 involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
• CPC Class Codes: A61B 5/352 Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
• CPC Class Codes: G01R 33/3692 involving signal transmission without using electrically conductive connections, e.g. wireless communication or optical communication of the MR signal or an auxiliary signal other than the MR signal
• CPC Class Codes: H03F 2200/114 the amplifier comprising means for electro-magnetic interference [EMI] protection
• CPC Class Codes: H03F 2203/45566 the IC comprising one or more dif stages in cascade with the dif amp
• CPC Class Codes: H03F 2203/45662 the LC comprising inductive coupled loading elements
• CPC Class Codes: H03F 3/24 of transmitter output stages
• CPC Class Codes: H03F 3/45475 using IC blocks as the active amplifying circuit
• CPC Class Codes: H03F 3/60 Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators H03F3/54 takes precedence
• CPC Class Codes: H03F 9/00 Magnetic amplifiers

Abstract

A wireless patient monitoring system. In one embodiment the system has a first patient monitoring subsystem including a plurality of sensors and sensor modules; and a processor-transceiver in communication with the plurality of sensors and sensor modules; and a first clinician display subsystem including a processor-transceiver. The processor-transceiver of the first clinician display subsystem broadcasts, on a first predetermined frequency, the frequency the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem then transmits and receives data on the frequency that the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem reverts to the first frequency if communication with the processor-transceiver of the first clinician display subsystem is lost.

Claims

1. A wireless patient monitoring system comprising:

a first patient monitoring subsystem comprising;

a plurality of sensors and sensor modules;

and a processor-transceiver in communication with said plurality of sensors and sensor modules; and

a plurality of clinician display subsystems, each clinician display subsystem comprising a respective processor-transceiver and having a pre-assigned channel,

wherein said processor-transceiver of each of said plurality of clinician display subsystems broadcasts on a first predetermined frequency the respective pre-assigned channel that said processor-transceiver of said clinician display subsystem will use to communicate with said processor-transceiver of said first patient monitoring subsystem; and

wherein said processor-transceiver of said first patient monitoring subsystem transmits and receives data on said respective pre-assigned channel that said processor-transceiver of one of said plurality of clinician display subsystem will use to communicate with said processor-transceiver of said first patient monitoring subsystem.

2. The wireless system of claim 1 wherein said processor-transceiver of said first patient monitoring subsystem reverts to said first frequency if communication with said processor-transceiver of said current clinician display subsystem is lost.

3. The wireless system of claim 2 wherein said communication is lost due to patient movement within a hospital and wherein the data is transmitted using a protocol that is designed to operate over a distance less than 30 meters.

4. The wireless patient monitoring system of claim 1 wherein said plurality of sensors and sensor modules comprise an ECG monitor and an oximeter.

5. The wireless patient monitoring system of claim 4 wherein the ECG monitor comprises a plurality of leads and said leads are selectable by a clinician.

6. The wireless patient monitoring system of claim 5 wherein the ECG monitor comprises a differential amplifier in communication with a single ended amplifier in communication with a switch multiplexer.

7. A method of communicating in a wireless patient monitoring system comprising a first patient monitoring subsystem comprising a plurality of sensors and sensor modules;

and a processor-transceiver in communication with said plurality of sensors and sensor modules; and

a plurality of clinician display subsystems, each of said clinician display subsystems comprising;

a respective processor-transceiver and having a respective pre-assigned channel, said method comprising the steps of;

broadcasting by said processor-transceiver of each of said clinician display subsystems, on a first predetermined frequency its respective pre-assigned channel that said processor-transceiver of first respective clinician display subsystem will use to communicate with said processor-transceiver of said first patient monitoring subsystem; and

transmitting and receiving, by said processor-transceiver of said first patient monitoring subsystem, data on said pre-assigned channel that said processor-transceiver of said respective clinician display subsystem will use to communicate with said processor-transceiver of said first patient monitoring subsystem.

8. The method of claim 7 further comprising the step of reverting to said first frequency by said processor-transceiver of said first patient monitoring subsystem if communication with said processor-transceiver of said first current clinician display subsystem is lost.

9. The method of claim 8 further comprising the step of establishing, by said processor-transceiver of said first patient monitoring subsystem, communication with a processor-transceiver of another clinician display subsystems when communication with said processor-transceiver of said current clinician display subsystem is lost.

10. The method of claim 8 wherein said communication with said processor-transceiver of said first current clinician display subsystem is determined to be lost by said processor-transceiver of said first patient monitoring subsystem if no ACK is received from said current clinician display subsystem.