Patent ID: 11910902
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. A device removably connectable to an electric shaver with a rotational driving element, the device comprising:
a connector element detachably attached to the electric shaver;
a receiving element configured to functionally couple to the rotational driving element of the electric shaver enabling the receiving element to rotate around an axis of rotation in response to mechanical energy transferred from the electric shaver;
a base configured to connect to a skin treatment element;
a rotational coupling mechanism configured to rotationally couple the base with the receiving element; and
an oscillation generator comprising a plurality of first permanent magnets arranged at a first circular plane and a plurality of second permanent magnets arranged at a second circular plane,
wherein the oscillation generator is configured to introduce an oscillation movement to the base in an axial direction, parallel to the axis of rotation during rotation of the base with a base rotation frequency, based on a periodical repulsion or attraction of the plurality of first permanent magnets and the plurality of second permanent magnets, induced by rotation of the receiving element, and
wherein the second circular plane is offset from the first circular plane in the axial direction, such that all of the plurality of first permanent magnets are entirely offset from all of the plurality of second permanent magnets in the axial direction.