Cable unit for connecting devices to enable wireless exchange of data and/or power between them

• US 10,418,755 B2
• Filed: 08/26/2016
• Issued: 09/17/2019
• Est. Priority Date: 09/03/2015
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Kahlman, Josephus Arnoldus Henricus Maria
• Primary Examiner(s): Pascal, Robert J
• Assistant Examiner(s): Glenn, Kimberly E
• Application Number:
  US15/748,260
• Publication Number:
  US 20180219334A1
• Time in Patent Office: 1,117 Days
• Field of Search: 333 171
• CPC Class Codes: A61B 2560/0204 of power management
• CPC Class Codes: A61B 2562/225 Connectors or couplings
• CPC Class Codes: A61B 2562/228 Sensors with optical connectors
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/4842 Monitoring progression or stage of a disease
• CPC Class Codes: G05B 2219/25356 Inductive coupling of power and signal
• CPC Class Codes: G06F 13/38 Information transfer, e.g. on bus G06F13/14 takes precedence
• CPC Class Codes: G06F 13/382 using universal interface adapter
• CPC Class Codes: G06F 13/4063 Device-to-bus coupling
• CPC Class Codes: G06F 2211/1097 Boot, Start, Initialise, Power
• CPC Class Codes: G08C 17/04 using magnetically coupled devices
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01R 13/66 Structural association with built-in electrical component coupling devices having concentrically or coaxially-arranged contacts H01R24/38
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/22 Capacitive coupling
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 : for data transfer in combination with power transfer
• CPC Class Codes: H04L 25/0266 : Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
• CPC Class Codes: H04Q 2209/43 : using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• CPC Class Codes: Y02D 10/00 : Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The present invention relates to a cable unit for connecting devices in a system, in particular in a patient monitoring system, to enable wireless exchange of data and/or power between them. The proposed cable unit comprises a cable (510) and a connector (520, 530) arranged at each end of said cable, said connector comprising a data transmission unit (522, 532) for transmitting data to and/or receiving data from a device having a counterpart connector and a magnetic coupling unit (521, 531) for transmitting power to and/or receiving power from another device of the system having a counterpart connector by use of inductive coupling.

Claims

1. Cable unit for connecting a first and a second devices in a system, in particular in a patient monitoring system, to enable wireless exchange of data and/or power between them, said cable unit comprising:

a cable and

a connector arranged at each end of said cable, said connector comprising a data transmission unit for transmitting data to and/or receiving data from the first device having a counterpart connector and a magnetic coupling unit for transmitting power to and/or receiving power from the second device of the system having a counterpart connector by use of inductive coupling.

2. Cable unit as claimed in claim 1, further comprising a second connector arranged at least at one end of said cable for simultaneously transmitting data to and/or receiving data from the first and second devices (or from the first and a third devices, or from the second and a third devices, or from a third and a fourth devices) and/or for simultaneously transmitting power to and/or receiving power from these two devices.

3. Cable unit as claimed in claim 1, further comprising a sealed housing arranged at each end of the cable, in which the one or more connectors arranged at the respective end of the cable are arranged.

4. Cable unit as claimed in claim 3, wherein said sealed housing is configured to allow stacking of the cable unit to a counterpart connectors.

5. Cable unit as claimed in claim 1, further comprising electronic circuitry for data processing, conversion and/or storage of received data.

6. Cable unit as claimed in claim 1, further comprising

a detection unit for detecting the strength of magnetic coupling between the magnetic coupling unit and a magnetic coupling unit of the second device, and

a control unit for switching the data transmission unit into a low-power mode and/or for enabling the magnetic coupling unit, if the detected magnetic coupling is above a first threshold and/or its increase is above a second threshold, and for switching the data transmission unit into a high-power mode and/or for disabling the magnetic coupling unit, if the detected magnetic coupling is below a third threshold and/or its decrease is above a fourth threshold.

7. Cable unit as claimed in claim 1, wherein said data transmission unit is configured for transmitting data by use of RF transmission, optical transmission, capacitive coupling or near field communication.

8. Cable unit as claimed in claim 1, wherein said connector further comprises a carrier,

wherein said data transmission unit comprises an RF antenna arranged in or on the carrier and an RF circuit for driving the RF antenna and/or obtaining RF signals received by the RF antenna.

9. Cable unit as claimed in claim 1, wherein said magnetic coupling unit comprises a flux concentrator for concentrating magnetic flux and one or more coils arranged around part of the flux concentrator.

10. Cable unit as claimed in claim 3, wherein said magnetic coupling unit comprises:

a ring-shaped flux concentrator, at least part of which having a U-shaped cross-section comprising two legs and forming a recess between the legs of the U,

a first coil arranged within a recess of the flux concentrator, and

a second coil arranged outside of the recess in which the first coil is arranged,

wherein the sealed housing is arranged to allow stacking of the cable unit upon other devices having a counterpart connector so that the first coil of the connector and a second coil of a connector stacked upon the connector together form a first transformer for inductive power transmission there between and/or the second coil of the connector and a first coil of a third connector stacked upon the connector together form a second transformer for inductive power transfer there between.

11. Cable unit as claimed in claim 1, wherein said cable comprises a pair of twisted wires between the magnetic coupling units of the connectors.

12. Cable unit as claimed in claim 1, wherein said cable comprises a coaxial cable or balanced transmission line between the data transmission units of the connectors.

13. Cable unit as claimed in claim 1, further comprising

a proximity detector for detecting proximity of the cable unit another device and

a control unit for switching the data transmission unit into a low-power mode and/or for enabling the magnetic coupling unit, if a device is detected to be proximate to the cable unit, and for switching the data transmission unit into a high-power mode and/or for disabling the magnetic coupling unit, if no device is detected to be proximate to the cable unit.