US 12,137,326 B2
Retention magnet system for medical device
Patrik Kennes, Macquarie University (AU); Charles Roger Aaron Leigh, Macquarie University (AU); Paul Michael Carter, Macquarie University (AU); Mark Alan Von Huben, Macquarie University (AU); Jonathan Diolaso, Macquarie University (AU); Scott Matthew Ibbotson, Macquarie University (AU); and Irene Tsimos Diolaso, Macquarie University (AU)
Assigned to Cochlear Limited, Macquarie University (AU)
Filed by Cochlear Limited, Macquarie University (AU)
Filed on Dec. 1, 2022, as Appl. No. 18/072,848.
Application 18/072,848 is a continuation of application No. 17/170,585, filed on Feb. 8, 2021, granted, now 11,792,586.
Application 17/170,585 is a continuation of application No. 16/376,431, filed on Apr. 5, 2019, granted, now 10,917,730.
Application 17/170,585 is a continuation of application No. 15/919,717, filed on Mar. 13, 2018, granted, now 10,880,662.
Application 16/376,431 is a continuation of application No. PCT/IB2016/001388, filed on Sep. 13, 2016.
Application PCT/IB2016/001388 is a continuation of application No. 15/158,225, filed on May 18, 2016, granted, now 9,872,115, issued on Jan. 16, 2018.
Claims priority of provisional application 62/763,203, filed on Jun. 6, 2018.
Claims priority of provisional application 62/218,339, filed on Sep. 14, 2015.
Prior Publication US 2023/0106375 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/606 (2013.01) [H04R 25/60 (2013.01); H04R 2225/67 (2013.01); H04R 2460/13 (2013.01)] 44 Claims
OG exemplary drawing
 
1. A device, comprising:
a housing; and
a magnet group disposed in the housing, the magnet group generating a group magnetic field, the magnet group including:
a first magnet portion that produces a first magnetic field; and
a second magnet portion that produces a second magnetic field, wherein
the first magnetic field and the second magnetic field contribute to the group magnetic field, wherein
the device is a medical device,
the magnet group is a disk-like magnet group,
the first magnet portion has a first magnetization direction that is different from a longitudinal axis of the magnet group,
the second magnet portion has a second magnetization direction that is different from the longitudinal axis of the magnet group,
the magnet group is configured so that the first magnetization direction and the second magnetization direction are fixed relative to each other,
the magnetization direction of the first magnet portion is oblique relative to the longitudinal axis, and
the magnetization direction of the second magnet portion is oblique relative to the longitudinal axis.