Establishing a wireless communication between a fluid processing medical device and a medical accessory

• US 9,913,940 B2
• Filed: 10/16/2015
• Issued: 03/13/2018
• Est. Priority Date: 10/17/2014
• Status: Active Grant

• Current Assignee: Gambro Lundia AB (Baxter International Inc.)
• Original Assignee: Gambro Lundia AB (Baxter International Inc.)
• Inventors: Court, Thierry
• Primary Examiner(s): TRAIL, ALLYSON NEEL
• Application Number:
  US15/519,020
• Publication Number:
  US 20170239412A1
• Time in Patent Office: 879 Days
• Field of Search: 235375, 455 411, 455 412
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/367 Circuit parts not covered by the preceding subgroups of group A61M1/3621
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: G06K 19/06009 with optically detectable marking G06K19/063, G06K19/08 take precedence
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections

Abstract

A method of establishing a wireless operating communication between the extracorporeal blood treatment device and a medical accessory and extracorporeal blood treatment device configured for implementing the method are provided; the method comprises the steps of establishing a wireless auxiliary communication between the blood treatment device and the medical accessory, transferring configuration data using the wireless auxiliary communication and establishing the wireless operating communication between the blood treatment device and the medical accessory based on the configuration data. A maximum operating distance of the wireless auxiliary communication is shorter than a maximum operating distance of the wireless operating communication.

Claims

1. A method of establishing a wireless operating communication between a fluid processing medical device and a medical accessory, the method comprising:

establishing a wireless auxiliary communication between the fluid processing medical device and the medical accessory;

transferring configuration data using the wireless auxiliary communication; and

establishing a wireless operating communication between the fluid processing medical device and the medical accessory based on the configuration data, wherein a maximum operating distance of the wireless auxiliary communication is shorter than a maximum operating distance of the wireless operating communication;

wherein, after the wireless operating communication has been established, the method further comprises;

establishing a second wireless auxiliary communication between the fluid processing medical device and a second medical accessory;

transferring second configuration data using the second wireless auxiliary communication;

determining whether the medical accessory and the second medical accessory are of a same type based on the configuration data and the second configuration data; and

if the medical accessory and the second medical accessory are of the same type;

inhibiting data communication using the wireless operating communication with the second medical accessory; and

closing the second wireless auxiliary communication.

2. The method of claim 1, wherein the maximum operating distance of the wireless auxiliary communication is less than 2 meters and the maximum operating distance of the wireless operating communication is greater than 2 meters.

3. The method of claim 2, wherein the maximum operating distance of the wireless auxiliary communication is less than 20 centimeters and the maximum operating distance of the wireless operating communication is greater than 10 meters.

4. The method of claim 1, wherein establishing the wireless operating communication further comprises:

determining, based on the configuration data, communication data of the medical accessory to operate with the wireless operating communication, wherein the communication data is indicative of a communication configuration of the medical accessory, wherein the configuration data comprise type data indicative of a plurality of properties of the medical accessory;

initiating, based on the communication data, a data communication between the fluid processing medical device and the medical accessory using the wireless operating communication.

5. The method of claim 4, wherein establishing the wireless operating communication further comprises:

determining, based on the type data, whether the medical accessory is of a type suitable to operate with the fluid processing medical device; and

closing both the wireless auxiliary communication and the wireless operating communication with the medical accessory if the medical accessory is not of a type suitable for operation with the fluid processing medical device, wherein the plurality of properties of the medical accessory that the type data are indicative of comprise one or more of;

hardware data indicative of a hardware configuration of the medical accessory;

software data indicative of a software configuration of the medical accessory; and

firmware data indicative of a firmware configuration of the medical accessory, and wherein determining whether the medical accessory is of a type suitable to operate with the fluid processing medical device is based on one or more of the hardware data, the software data, and the firmware data.

6. The method of claim 1, wherein, after the wireless operating communication has been established, the method further comprises:

comparing an idle time interval indicative of a time interval since the last data communication between the fluid processing medical device and the medical accessory using the wireless operating communication with a pre-defined maximum idle time interval;

closing the wireless operating communication if the idle time interval is greater than the pre-defined maximum idle time interval; and

performing an alarm procedure if the idle time interval is greater than the pre-defined maximum idle time interval.

7. The method of claim 1, wherein establishing the wireless auxiliary communication is preceded by bringing a data storage unit of the medical accessory into a close proximity of a data acquisition unit of the fluid processing medical device in order to initiate the establishing of the wireless auxiliary communication, the close proximity being equal to or shorter than the maximum operating distance of the wireless auxiliary communication, the medical accessory and the fluid processing medical device establishing said wireless auxiliary communication when the data storage unit is in the close proximity of the data acquisition unit.

8. The method of claim 7, wherein the data storage unit of the medical accessory comprises an optical bar-code or an optical matrix code, and wherein the data acquisition unit of the fluid processing medical device comprises an optical reader configured to read the optical bar code or the optical matrix code.

9. The method of claim 7, wherein the data storage unit of the medical accessory comprises a near field communication unit, the near field communication unit comprising a near field communication transmitter and receiver, and

wherein the data acquisition unit of the fluid processing medical device comprises a near field communication reader configured to read data from the near field communication transmitter and receiver.

10. The method of claim 7, wherein establishing the wireless auxiliary connection comprises:

detecting the presence of the data storage unit of the medical accessory within an initial distance to the data acquisition unit of the fluid processing medical device, the initial distance being equal to or shorter than the maximum operating distance of the wireless auxiliary communication,

the method further comprising closing the wireless auxiliary communication after the configuration data has been transferred.

11. The method of claim 1, wherein the wireless operating communication operates at a maximum bandwidth higher than a maximum bandwidth of the wireless auxiliary communication on a wireless frequency range different from a wireless frequency range of the wireless auxiliary communication according to a wireless network protocol different from a wireless network protocol of the wireless auxiliary communication.

12. The method of claim 11, wherein the wireless frequency range of the wireless auxiliary communication comprises one or more of:

a visible or near infra-red optical frequency range, and

a microwave frequency range, and

wherein the wireless frequency range of the operating communication comprises one or more of;

from about 868 MHz to about 868.6 megahertz,

from about 902 MHz to about 928 megahertz,

from about 2.4 GHz to about 2,485 gigahertz, and

from about 5,150 GHz to about 5,850 gigahertz; and

wherein the wireless auxiliary communication is based on at least one of;

near field communication, and

optical recognition; and

wherein the wireless operating communication is based on at least one of;

wireless local area network, and

BLUETOOTH.

13. The method of claim 12, wherein detecting the presence of the data storage unit of the medical accessory within the initial distance comprises:

scanning an optical pattern visibly attached to the medical accessory; and

decoding the configuration data from the optical pattern.

14. The method of claim 12, wherein detecting the presence of the data storage unit of the medical accessory within the initial distance comprises:

sending an electromagnetic signal from the data acquisition unit of the fluid processing medical device to the data storage unit of the medical accessory to initiate the wireless auxiliary communication, the electromagnetic signal sent in order to supply energy to a transponder or transceiver comprised in the data storage unit of the medical accessory; and

receiving the configuration data using the wireless auxiliary communication in response to the electromagnetic signal.

15. The method of claim 1 comprising:

connecting the medical accessory to a patient;

generating, at the medical accessory, treatment data based on one or more physical characteristics of the patient, the one or more physical characteristics measured using the medical accessory; and

transferring the treatment data to the fluid processing medical device using the wireless operating communication, the treatment data comprising one or more values of the one or more physical characteristics of the patient, the one or more physical characteristics selected from a group consisting of;

patient'"'"'s blood pressure,

patient'"'"'s weight,

patient'"'"'s temperature,

patient'"'"'s heart rate,

patient'"'"'s oxygen saturation in blood, and

blood leakage of patient'"'"'s blood in correspondence of a vascular access,

wherein the medical accessory is connected to the patient after the configuration data has been transferred.

16. An extracorporeal blood treatment device comprising:

a blood treatment unit comprising a blood chamber and a fluid chamber separated from the blood chamber by a semipermeable membrane;

an extracorporeal blood circuit comprising an arterial line for blood removal from an individual and a venous line for blood return to the individual, the arterial line connected to an inlet and the venous line connected to an outlet of the blood chamber;

a blood moving device to move the blood along the extracorporeal circuit;

a fluid circuit comprising at least a discharge line connected to an outlet of the fluid chamber;

an ultrafiltration device to ultrafilter plasmatic liquid from the blood chamber to the fluid chamber across the semipermeable membrane;

a device control unit configured to perform;

establishing a wireless auxiliary communication between the blood treatment device and a medical accessory;

transferring configuration data using the wireless auxiliary communication; and

establishing a wireless operating communication between the blood treatment device and the medical accessory based on the configuration data, wherein a maximum operating distance of the wireless auxiliary communication is shorter than a maximum operating distance of the wireless operating communication,

a support structure supporting at least the ultrafiltration device and the blood moving device,

a plurality of replaceable components of different categories engaged to the support structure in correspondence of respective operating areas, each component of a same category comprising a respective mechanical connection to a corresponding operating area on the support structure different from that of components of other categories, wherein said support structure includes a plurality of different types of engaging means, each type of engaging means being designed for mechanically engaging, in a respective operating area, a component of one corresponding category only,

at least a user interface enabling setting of a plurality of parameters pertinent to operation of said extracorporeal blood treatment device or pertinent to a process to be performed by said extracorporeal blood treatment device, the user interface including at least a screen,

wherein the wireless reader comprises a reading portion to read information concerning the components, the reading portion being spaced from said operating areas and accessible to read the information irrespective of the components engaged or not engaged to the support structure,

wherein the device control unit of the blood treatment device controls operation of said blood treatment device and is responsive to actions by a user on said user interface, said device control unit also communicating with the wireless reader and programmed to receive and store at least said information concerning the components every time the wireless reader reads information concerning a new component installed or to be installed on the structure.

17. The extracorporeal blood treatment device of claim 16, wherein the maximum operating distance of the wireless auxiliary communication is less than 20 centimeters, and wherein the maximum operating distance of the wireless operating communication is greater than 10 meters.

18. The extracorporeal blood treatment device of claim 16, wherein establishing the wireless operating communication further comprises:

determining, based on the configuration data, communication data of the medical accessory, the communication data of the medical accessory configured to operate with the wireless operating communication, wherein the communication data is indicative of a communication configuration of the medical accessory, wherein the configuration data comprises type data indicative of a plurality of properties of the medical accessory;

initiating, based on the communication data, a data communication between the blood treatment device and the medical accessory using the wireless operating communication.

19. The extracorporeal blood treatment device of claim 16, wherein establishing the wireless auxiliary communication is preceded bringing a data storage unit of the medical accessory into a close proximity of a data acquisition unit of the blood treatment device in order to initiate the establishing of the wireless auxiliary communication, the close proximity being equal to or shorter than the maximum operating distance of the wireless auxiliary communication, the medical accessory and the blood treatment device establishing said wireless auxiliary communication when the data storage unit is in the close proximity of the data acquisition unit, wherein the device control unit is further configured to execute closing the wireless auxiliary communication after the configuration data has been transferred.

20. The extracorporeal blood treatment device of claim 16, wherein the accessory control unit is configured to perform inhibiting data communication with a second blood treatment device over the wireless operating communication until the wireless operating communication with the blood treatment device is closed.

21. The extracorporeal blood treatment device of claim 16, wherein the medical accessory is configured to be connected to any one of a number of a plurality of blood treatment devices, the medical accessory configured to be not connectable to any one of a number of a plurality of medical accessories, the medical accessory comprising a transmitter to transmit wireless signals over a wireless operating communication, wherein the medical accessory further comprises a receiver to receive wireless signals over a wireless operating communication, and wherein the blood treatment device comprises a receiver to receive wireless signals over a wireless operating communication, wherein the blood treatment device further comprises a transmitter to transmit wireless signals over a wireless operating communication.

22. The extracorporeal blood treatment device of claim 16, wherein the medical accessory comprises a wireless reader to read data on an information carrier of a component installed or to be installed on the blood treatment device, wherein the wireless reader comprises an optical reader or a radio-frequency reader to detect said data on the information carrier of the component when the component and the wireless reader are approached to one another at a distance less then 30 cm.

23. A method of establishing a wireless operating communication between a fluid processing medical device and a medical accessory, the method comprising:

establishing a wireless auxiliary communication between the fluid processing medical device and the medical accessory;

transferring configuration data using the wireless auxiliary communication; and

establishing a wireless operating communication between the fluid processing medical device and the medical accessory based on the configuration data, wherein a maximum operating distance of the wireless auxiliary communication is shorter than a maximum operating distance of the wireless operating communication,

wherein establishing the wireless operating communication comprises;

determining, based on the configuration data, communication data of the medical accessory to operate with the wireless operating communication, wherein the communication data is indicative of a communication configuration of the medical accessory, wherein the configuration data comprise type data indicative of a plurality of properties of the medical accessory;

initiating, based on the communication data, a data communication between the fluid processing medical device and the medical accessory using the wireless operating communication;

determining, based on the type data, whether the medical accessory is of a type suitable to operate with the fluid processing medical device; and

closing both the wireless auxiliary communication and the wireless operating communication with the medical accessory if the medical accessory is not of a type suitable for operation with the fluid processing medical device, wherein the plurality of properties of the medical accessory that the type data are indicative of comprise one or more of;

hardware data indicative of a hardware configuration of the medical accessory;

software data indicative of a software configuration of the medical accessory; and

firmware data indicative of a firmware configuration of the medical accessory, and wherein determining whether the medical accessory is of a type suitable to operate with the fluid processing medical device is based on one or more of the hardware data, the software data, and the firmware data.

24. The method of claim 23, wherein the maximum operating distance of the wireless auxiliary communication is less than 2 meters and the maximum operating distance of the wireless operating communication is greater than 2 meters.

25. The method of claim 24, wherein the maximum operating distance of the wireless auxiliary communication is less than 20 centimeters and the maximum operating distance of the wireless operating communication is greater than 10 meters.

26. The method of claim 23, wherein, after the wireless operating communication has been established, the method further comprises:

comparing an idle time interval indicative of a time interval since the last data communication between the fluid processing medical device and the medical accessory using the wireless operating communication with a pre-defined maximum idle time interval;

closing the wireless operating communication if the idle time interval is greater than the pre-defined maximum idle time interval; and

performing an alarm procedure if the idle time interval is greater than the pre-defined maximum idle time interval.

27. The method of claim 23, wherein establishing the wireless auxiliary communication is preceded by bringing a data storage unit of the medical accessory into a close proximity of a data acquisition unit of the fluid processing medical device in order to initiate the establishing of the wireless auxiliary communication, the close proximity being equal to or shorter than the maximum operating distance of the wireless auxiliary communication, the medical accessory and the fluid processing medical device establishing said wireless auxiliary communication when the data storage unit is in the close proximity of the data acquisition unit.

28. The method of claim 27, wherein the data storage unit of the medical accessory comprises an optical bar-code or an optical matrix code, and

wherein the data acquisition unit of the fluid processing medical device comprises an optical reader configured to read the optical bar code or the optical matrix code.

29. The method of claim 27, wherein the data storage unit of the medical accessory comprises a near field communication unit, the near field communication unit comprising a near field communication transmitter and receiver, and

wherein the data acquisition unit of the fluid processing medical device comprises a near field communication reader configured to read data from the near field communication transmitter and receiver.

30. The method of claim 27, wherein establishing the wireless auxiliary connection comprises:

detecting the presence of the data storage unit of the medical accessory within an initial distance to the data acquisition unit of the fluid processing medical device, the initial distance being equal to or shorter than the maximum operating distance of the wireless auxiliary communication,

the method further comprising closing the wireless auxiliary communication after the configuration data has been transferred.

31. The method of claim 23, wherein the wireless operating communication operates at a maximum bandwidth higher than a maximum bandwidth of the wireless auxiliary communication on a wireless frequency range different from a wireless frequency range of the wireless auxiliary communication according to a wireless network protocol different from a wireless network protocol of the wireless auxiliary communication.

32. The method of claim 31, wherein the wireless frequency range of the wireless auxiliary communication comprises one or more of:

a visible or near infra-red optical frequency range, and

a microwave frequency range, and

wherein the wireless frequency range of the operating communication comprises one or more of;

from about 868 MHz to about 868.6 megahertz,

from about 902 MHz to about 928 megahertz,

from about 2.4 GHz to about 2,485 gigahertz, and

from about 5,150 GHz to about 5,850 gigahertz; and

wherein the wireless auxiliary communication is based on at least one of;

near field communication, and

optical recognition; and

wherein the wireless operating communication is based on at least one of;

wireless local area network, and

BLUETOOTH.

33. The method of claim 32, wherein detecting the presence of the data storage unit of the medical accessory within the initial distance comprises:

scanning an optical pattern visibly attached to the medical accessory; and

decoding the configuration data from the optical pattern.

34. The method of claim 32, wherein detecting the presence of the data storage unit of the medical accessory within the initial distance comprises:

sending an electromagnetic signal from the data acquisition unit of the fluid processing medical device to the data storage unit of the medical accessory to initiate the wireless auxiliary communication, the electromagnetic signal sent in order to supply energy to a transponder or transceiver comprised in the data storage unit of the medical accessory; and

receiving the configuration data using the wireless auxiliary communication in response to the electromagnetic signal.

35. The method of claim 23 comprising:

connecting the medical accessory to a patient;

generating, at the medical accessory, treatment data based on one or more physical characteristics of the patient, the one or more physical characteristics measured using the medical accessory; and

transferring the treatment data to the fluid processing medical device using the wireless operating communication, the treatment data comprising one or more values of the one or more physical characteristics of the patient, the one or more physical characteristics selected from a group consisting of;

patient'"'"'s blood pressure,

patient'"'"'s weight,

patient'"'"'s temperature,

patient'"'"'s heart rate,

patient'"'"'s oxygen saturation in blood, and

blood leakage of patient'"'"'s blood in correspondence of a vascular access,

wherein the medical accessory is connected to the patient after the configuration data has been transferred.