DEVICE FOR TREATING SKIN

• US 20150202114A1
• Filed: 06/28/2013
• Published: 07/23/2015
• Est. Priority Date: 07/10/2012
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Pardoel, Michel Gerardus, Skeats, Anthony James, Caprihan, Arjun, Mark, Rob, Yeap, Chin Eng
• Granted Patent: US 10,143,615 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61H 2023/0209 powered with frequencies not related to mains frequency
• CPC Class Codes: A61H 2201/0153 hand-held
• CPC Class Codes: A61H 2201/0157 portable
• CPC Class Codes: A61H 2201/0169 Noise reduction
• CPC Class Codes: A61H 2201/1215 Rotary drive
• CPC Class Codes: A61H 2201/123 Linear drive
• CPC Class Codes: A61H 2201/1463 Special speed variation means, i.e. speed reducer
• CPC Class Codes: A61H 2201/1664 linear
• CPC Class Codes: A61H 2201/1671 rotational
• CPC Class Codes: A61H 2201/1685 interchangeable modular devices, A61H2201/0107
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 2201/5035 Several programs selectable
• CPC Class Codes: A61H 23/0218 with alternating magnetic fields producing a translating or oscillating movement
• CPC Class Codes: A61H 7/005 hand-held

Abstract

The present application relates to a device for treating skin (1) comprising a housing (2), a shaft (14) located in the housing (2) having a longitudinal axis (‘A’) and an end for receiving a skin treating part (3). The device (1) further comprises a drive means configured to cause the shaft to rotate about its longitudinal axis, and to oscillate in a direction along the longitudinal axis, wherein the drive means comprise a rotational drive unit for rotating the shaft (14) and an oscillation generator (26) for oscillating the shaft. The oscillation generator (26) is located about the shaft (14) such that the shaft is rotatable relative to the oscillation generator. Furthermore, the oscillation generator (26) comprises a solenoid (39) and a flux assembly (25), and the flux assembly (25) is moveable along the shaft (14) relative to the solenoid (39).

Claims

1. A device for treating skin comprising a housing, a shaft located in the housing having a longitudinal axis ‘

A’ and

an end for receiving a skin treating part, and a drive means configured to cause the shaft to rotate about its longitudinal axis, and to oscillate in a direction along the longitudinal axis, wherein the drive means comprise a rotational drive unit for rotating the shaft and an oscillation generator for oscillating the shaft, the oscillation generator is located about the shaft such that the shaft is rotatable relative to the oscillation generator, the oscillation generator comprises a solenoid and a flux assembly, and the flux assembly is moveable along the shaft relative to the solenoid.

2. A device according to claim 1, wherein the rotational drive unit and the oscillating generator are configured such that the speed of the rotation and the frequency of the oscillation of the shaft can be independently changed of one another in response to a user input.

3. A device according to claim 1, wherein the flux assembly comprises an inner and an outer flux concentrator and a magnet located therebetween.

4. A device according to claim 3, wherein the outer flux concentrator is made of a base panel having a peripheral side panel, and the inner flux concentrator is received within the peripheral side panel, the magnet is located between the inner flux concentrator and the base panel, and a gap is formed between the inner flux concentrator and the peripheral side panel for receiving the solenoid.

5. A device according to claim 1, wherein the device further comprises first and second supports holding the shaft, the flux assembly is located about the shaft between the first and second supports and the solenoid is attached to one of the supports.

6. A device according to claim 5, wherein the shaft is held by the first and second supports such that the shaft is rotatable relative to the supports about the longitudinal axis but prevented from moving along the longitudinal axis relative to at least one of the supports.

7. A device according to claim 6, wherein the shaft comprises a circumferential groove in which one of the supports locates so as to prevent the shaft from moving along the longitudinal axis relative to the support located in the groove.

8. A device according to claim 7, wherein one of the supports is formed with an e-clip that locates in the circumferential groove.

9. A device according to claim 5, wherein one of the supports is formed with a stop which the flux assembly impacts as it oscillates.

10. A device according to claim 5, wherein a spring is located between the first or the second support and the flux assembly so as to reduce the impact as the flux assembly oscillates.

11. A device according to claim 1, wherein the device further comprises a power source powering the drive means.

12. A device according to claim 11, wherein the device further comprises an inverter for changing the current supplied by the power source to alternating current.

13. A device according to claim 12, wherein the device further comprises a frequency converter for changing the frequency of the alternating current.