US 12,301,727 B2
Dialysis machine, medical equipment, and methods for establishing secure communication between a dialysis machine and medical equipment
Olof Ekdahl, Lund (SE); Bo Wennberg, Staffanstorp (SE); Niklas Eklund, Bunkeflostrand (SE); Christian Karlsson, Staffanstorp (SE); and Ding Ma, Inverness, IL (US)
Assigned to Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Filed by BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
Filed on Jul. 3, 2023, as Appl. No. 18/217,735.
Application 18/217,735 is a continuation of application No. 17/750,714, filed on May 23, 2022, granted, now 11,695,572.
Application 17/750,714 is a continuation of application No. 16/619,728, granted, now 11,343,105, issued on May 24, 2022, previously published as PCT/EP2018/065661, filed on Jun. 13, 2018.
Claims priority of provisional application 62/519,994, filed on Jun. 15, 2017.
Claims priority of application No. 1750761-7 (SE), filed on Jun. 15, 2017.
Prior Publication US 2023/0353386 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/32 (2006.01); G16H 40/63 (2018.01); H04L 9/08 (2006.01); H04W 12/037 (2021.01)
CPC H04L 9/3247 (2013.01) [G16H 40/63 (2018.01); H04L 9/085 (2013.01); H04W 12/037 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A dialysis machine comprising:
a short-range communication interface;
a memory; and
a control unit configured to cause the dialysis machine to establish, using the short-range communication interface, a short-range wireless connection between the dialysis machine and medical equipment by:
receiving, via a user interface, a passkey associated with the medical equipment,
using the passkey to pair with the medical equipment,
creating a new bonding table or writing to an empty bonding table using the passkey,
generating a shared key using the passkey and at least one predetermined criterion, wherein the medical equipment separately has its own shared key,
storing the shared key to a key table in the memory,
using the shared key to authenticate with the medical equipment, and
when authentication with the medical equipment is successful, enabling data communication using the short-range wireless connection with the medical equipment.