Addressing Scheme for Smart Wireless Medical Sensor Networks

• US 20080191866A1
• Filed: 03/13/2006
• Published: 08/14/2008
• Est. Priority Date: 03/22/2005
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Falck, Thomas, Masegosa De Miguel, Pedro
• Granted Patent: US 7,859,401 B2
• Time in Patent Office: Days
• US Class Current: 340/539.12
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04L 2101/604 Address structures or formats
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/50 Address allocation
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network

Abstract

A wireless body network (8) for monitoring a patient (16, 32), the wireless body network (8) includes at least one wireless unit (10, 12, 14, 34, 36, 38, 40) coupled to the patient (16, 32) configured to collect and transmit data to the wireless body network related to one physiological function of the patient. The wireless unit (10, 12, 14, 34, 36, 38, 40) employs an addressing scheme (80), including a patient identification field (82) that contains a patient identification number that is unique to the wireless body network; at least one of a service type field (84) that contains a service type and a point type field (86) that indicates whether the wireless unit (10, 12, 14, 34, 36, 38, 40) provides a service or consumes a service; and a point identification field (88) that distinguishes one wireless unit (10, 12, 14, 34, 36, 38, 40) from another when the patient identification field (82), the service type field (84) and the point type field (88) are identical. A physical device (22, 24, 26, 28) is configured to communicate with the wireless unit (10, 12, 14, 34, 36, 38, 40) utilizing the addressing scheme (80).

Claims

1. A wireless body network for monitoring a patient, the wireless body network comprising:

at least one wireless unit coupled to the patient configured to collect and transmit data to the wireless body network related to one physiological function of the patient, the wireless unit employing an addressing schemed, including;

at least one of a service type field that identifies a service and a point type field that identifies whether the service is provided or consumed;

a patient identification field that contains a patient identification number that is unique to the wireless body network;

a point identification field (that distinguishes one wireless unit from another when the patient identification field, the service type field and the point type field are identical; and

a physical device configured to communicate with the wireless unit utilizing the addressing scheme.

2. The system according to claim 1, wherein the at least one wireless unit includes:

a patient identification module coupled to the patient configured to transmit the unique patient identification number to the wireless body network;

a physical device which is one of a data processing component, a display device, a data storage unit and a data transmission component.

3. The system according to claim 1, wherein the addressing scheme further includes:

both the service type field to indicate the service and the point type field to indicate whether the wireless unit provides the service or consumes the service.

4. The system of claim 3, wherein at least one of the patient identification field, the service type field, the point type field and the point identification field are designatable as multicast address fields.

5. The system according to claim 3, wherein wireless unit includes both a service point and a control point.

6. The system according to claim 1, wherein the point identification value is autonomously assigned to the wireless unit.

7. The system according to claim 5, wherein the autonomously assigned point identification value is modified by the wireless body network if its address is not unique to avoid a conflict with another physical device.

8. The system according to claim 1, wherein the service type of the wireless unit is one of an electrocardiograph (ECG) sensor, a pulse oximetry (SpO2) sensor, a non-invasive blood pressure (NIBP) sensor, and a temperature sensor.

9. The system according to claim 1, wherein the point type field identifies one of:

a service point which provides a service to the wireless body network and;

a control point which consumes a service provided by another service point.

10. The system according to claim 1, wherein the addressing scheme further includes:

a location field that designates a particular location of one of the physical device and the patient.

11. A method for communicating within a wireless medical sensor network, the method including a plurality of wireless units, comprising:

broadcasting to at least one of the wireless units employing an addressing scheme including;

a patient identification field that contains a patient identification number that is unique to the wireless body network; and

at least one of a service type field that identifies a service and a point type field that identifies whether the service is provided or consumed;

a point identification field (that contains the point identification value to distinguish one wireless unit from a disparate wireless unit when the patient identification field, the service type field and the point type field are identical.

12. The method of claim 11, the addressing scheme further including:

both the service type field to identify the service type value and the point type field that contains the point value to indicate whether the wireless unit provides a service or consumes a service.

13. The method according to claim 11, further including:

coupling one of the wireless units to a patient to monitor and transmit information related to a characteristic of the patient to the smart wireless sensor network.

14. The method according to claim 13, further including:

coupling a patient identification module to the patient, the patient identification module having a unique patient identification number in the patient identification field to the smart wireless sensor network.

15. The method according to claim 13, further including:

after coupling the wireless unit to the patient, polling other network devices to determine if its address is unique;

if the coupled wireless unit address is not unique, selecting another assigned point identification value.

16. The method according to claim 13, wherein monitoring a characteristic of the patient includes monitoring at least one of an electrocardiograph (ECG) value, a pulse oximetry (SpO2) value, a non-invasive blood pressure (NIBP) value, and a temperature value.

17. The method according to claim 11, wherein the point type field contains one of a service point which provides a service to the wireless body network and a control point which consumes a service provided by the service point.

18. The method according to claim 11, wherein the addressing scheme further includes:

a location field that designates a particular location related to one of the wireless unit and the patient.

19. The method according to claim 11, further including designating at least one of the patient identification field, the service type field, the point type field and the point identification field as a multicast address field.

20. The method according to claim 11, further including multicasting addressing one of:

all units with a common service point,

all units with a common control point,

all units belonging to a selected patient,

all units of a selected patient providing the same service type,

all units belonging to a selected patient consuming the same service type,

all units.

21. An addressing scheme for a wireless sensor network, comprising:

a patient identification field that contains a patient identification number that is unique to the wireless body network;

at least one of a service type field that contains the service type value that indicates a type of service and a point type field that contains the point value that indicates whether the wireless unit provides the service or consumes the service; and

a point identification field that contains the point identification value to distinguish one wireless unit from a disparate wireless unit when the patient identification field, the service type field and the point type field are identical.