Method for establishing a telecommunications network for patient monitoring

• US 8,373,557 B2
• Filed: 10/19/2007
• Issued: 02/12/2013
• Est. Priority Date: 10/19/2007
• Status: Active Grant

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Inventors: Smith, Guy, Oswald, Matthew T., Brown, Matthew L., Ellis, Matthew E.
• Primary Examiner(s): Mehmood, Jennifer
• Assistant Examiner(s): GIRMA, FEKADESELASS
• Application Number:
  US11/907,980
• Publication Number:
  US 20090103469A1
• Time in Patent Office: 1,943 Days
• Field of Search: None
• US Class Current: 340/539.12
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A wireless network having an architecture that resembles a peer-to-peer network has two types of nodes, a first sender type node and a second receiver/relay type node. The network may be used in a medical instrumentation environment whereby the first type node may be wireless devices that could monitor physical parameters of a patient such as for example wireless oximeters. The second type node are mobile wireless communicators that are adapted to receive the data from the wireless devices if they are within the transmission range of the wireless devices. After an aggregation process involving the received data, each of the node communicators broadcasts or disseminates its most up to date data onto the network. Any other relay communicator node in the network that is within the broadcast range of a broadcasting communicator node would receive the up to date data. This makes it possible for communicators that are out of the transmitting range of a wireless device to be apprized of the condition of the patient being monitored by the wireless device. Each communicator in the network is capable of receiving and displaying data from a plurality of wireless devices.

Claims

1. In a wireless communications network having a plurality of transmitting and receiving devices and a plurality of mobile communicators each having a transmission range, said communicators being different from said devices, a method of conveying information relating to physical attributes of a patient remotely, comprising the steps of:

a) associating at least one wireless sensor device with a patient for detecting at least one physical attribute of the patient, said sensor device including at least a transmitter;

b) transmitting patient data corresponding to the detected physical attribute out onto the network;

c) locating a first communicator within transmission range of said sensor device, said first communicator having a transceiver to receive the patient data transmitted from said sensor device;

d) broadcasting from said first communicator the received patient data out onto the network; and

e) establishing communication between at least a second mobile communicator and said first communicator, said second mobile communicator being located in transmission range with said first communicator and not in direct communication with said wireless sensor device, said second mobile communicator having a second transceiver to receive the patient data broadcast by said first communicator, wherein other mobile communicators also receive the patient data broadcast by said first communicator when said other mobile communicators are located in the transmission range of said first communicator.

2. Method of claim 1, wherein said step (e) further comprises the step of:

locating said second communicator to be within the broadcasting range of said first communicator so that said second communicator is in direct communication with said first communicator.

3. Method of claim 1, wherein when said second communicator is outside the broadcasting range of said first communicator, said step (e) further comprises the step of:

locating said second communicator within the broadcast range of at least one other communicator that is located within the broadcasting range of said first communicator or said sensor so that said second communicator receives the patient data received by said one other communicator from either said first communicator or said sensor and thereafter broadcast by said one other communicator.

4. Method of claim 1, wherein said step (b) further comprises the steps of:

sending the patient data to any other first communicator located within the broadcast range of said sensor device; and

sending the patient data through said any other communicator for reception by said second communicator.

5. Method of claim 4, further comprising the steps of:

storing the patient data in said any other communicator as the patient data is received by said any other communicator; and

propagating the stored patient data from said any other communicator along the network.

6. Method of claim 1, wherein each of said first and second communicator comprises a memory for storing patient data that it receives, the method further comprising the step of:

updating the stored patient data in the memory of each of said communicators as new patient data is received so that only the most recent patient data stored is broadcast from said each communicator.

7. Method of claim 1, wherein said sensor device comprises a portable oximeter worn by or attachable to the patient;

wherein said step (a) comprises the step of;

detecting the SPO2 of the patient for said patient attribute.

8. Method of claim 1, wherein each of said communicators comprises a mobile oximeter, the method further comprising the step of:

displaying the received patient data on at least one of said communicators.

9. Method of claim 1, further comprising the steps of:

associating multiple wireless sensor devices with respective patients;

wherein for each of the multiple sensor devices

detecting at least one physical attribute from the patient associated with said each sensor; and

transmitting the physical attribute detected by said each sensor device;

locating a plurality of communicators in the network;

wherein, for each of said communicators, receiving the patient data transmitted from any one of said multiple sensor devices if said each communicator is located within the transmission range of said any one sensor device; and

assigning said multiple sensors and plurality of communicators respective synchronized time slots so that said sensor devices and communicators effect respective scheduled transmission, reception and/or broadcasting of signals and/or data.

10. Method of claim 1, further comprising the step of:

time synchronizing the respective operations of said sensor device and each of said communicators with a communications schedule for the transmission, reception and/or broadcasting of signals and/or data.

11. In a wireless network having a plurality of nodes, a method for disseminating information of a patient, comprising the steps of:

a) associating at least one first type node with the patient for monitoring physical attributes of the patient, said first type node including a detector that detects at least one physical attribute of the patient and a transmitter that transmits the detected physical attribute as patient data out to the network;

b) locating a plurality of second type nodes not directly associated with the patient in the network, each of said second type nodes being mobile so as to be movable within the network, each of said second type nodes receive signals and/or data from said first type node when moved to within broadcast range of said first type node, each of said second type nodes further receive signals and/or data from other second type nodes that comes within the communication range of said each second type node and broadcast signals and/or data out to the network;

c) moving one of said second type nodes to within the broadcast range of said first type node to receive the patient data output from said first type node; and

d) broadcasting from said one second type node the received patient data from said first type node out to the network so that any other second type node located within broadcast range of said one second type node could receive from said one second type mobile node the patient data output by said first type node.

12. Method of claim 11, comprising the step of:

storing patient data in each of said second type nodes as the patient data is received and passed along by said each second type node for propagation along the network.

13. Method of claim 11, wherein each of said second type nodes comprises an oximeter having at least a transceiver for receiving and transmitting signals and/or data from and to, respectively, nodes in the network;

the method further comprising the step of;

displaying the received patient data on at least one of said second type nodes.

14. Method of claim 11, further comprising the step of:

assigning said first type node and second type nodes respective synchronized time slots to effect scheduled transmission, reception and/or broadcasting of signals and/or data.

15. Method of claim 11, further comprising the step of:

time synchronizing said first type node and each of said second type nodes with a communications schedule for the transmission, reception and/or broadcasting of signals and/or data.

20. Method of claim 11, wherein said first type node comprises a portable oximeter worn by or attachable to the patient, and wherein said step (a) comprises the step of:

detecting as said patient attribute the SPO2 of the patient.

16. In a wireless network having a plurality of nodes, a method for disseminating information of a patient, comprising the steps of:

a) associating each of multiple first type nodes with a particular patient for monitoring physical attributes of the particular patient, said each first type node including a detector that detects at least one physical attribute of the particular patient and a transmitter that transmits the detected physical attribute as patient data out to the network;

b) positioning in the network a plurality of second type nodes not directly associated with any patient, each of said second type nodes being mobile and moveable relative to said first type nodes and others of said second type nodes;

c) configuring each of said second type nodes to receive signals and/or data from said first type nodes when each of said second type nodes moves to within broadcast range of any of said first type nodes, and to receive signals and/or data from other second type nodes and broadcast signals and/or data out to the network;

d) locating one of said second type nodes to within the broadcast range of any said first type node to receive the patient data output from said any first type node; and

e) broadcasting thereafter from said one second type node the received patient data out to the network so that any other second type node located within the broadcast range of said one second type node could receive from said one second type node the patient data of the particular patient output by said any first type node, and so that patient data from a plurality of patients detected from multiple first type nodes may be disseminated across the network by the plurality of second type nodes.

17. Method of claim 16, wherein each of said second type nodes comprises an oximeter having at least a transceiver for receiving and transmitting signals and/or data from and to, respectively, nodes in the network, the method further comprising the step of:

displaying the received patient data on at least one of said second type nodes.

18. Method of claim 16, further comprising the step of:

assigning respective synchronized time slots to said first type nodes and second type nodes to effect scheduled non-interfering transmission, reception and/or broadcasting of signals and/or data for the nodes.

19. Method of claim 16, further comprising the step of:

storing the patient data in each of said second type nodes as the patient data is received and passed along by said each second type node for propagation along the network.

21. Method of claim 16, wherein said first type nodes each comprise a portable oximeter worn by the patient;

wherein said step (a) comprises the step of;

detecting the SPO2 as said one patient attribute.