Devices and Methods for Radiation-Based Dermatological Treatments

• US 20130030423A1
• Filed: 04/10/2012
• Published: 01/31/2013
• Est. Priority Date: 02/03/2011
• Status: Abandoned Application

• Current Assignee: TRIA Beauty Incorporated (Channel Investments, LLC)
• Original Assignee: TRIA Beauty Incorporated (Channel Investments, LLC)
• Inventors: Reichert, Patrick, Liu, Harvey I-Heng, Youngquist, David, Vahlensieck, Jay M.
• Application Number:
  US13/443,880
• Publication Number:
  US 20130030423A1
• Time in Patent Office: Days
• US Class Current: 606/9
• CPC Class Codes: A61B 18/203 applying laser energy to the outside of the body
• CPC Class Codes: A61B 2017/00154 pulsed
• CPC Class Codes: A61B 2017/00769 Tattoo removal
• CPC Class Codes: A61B 2018/00458 Deeper parts of the skin, e.g. treatment of vascular disorders or port wine stains
• CPC Class Codes: A61B 2018/0047 Upper parts of the skin, e.g. skin peeling or treatment of wrinkles
• CPC Class Codes: A61B 2018/00476 Hair follicles
• CPC Class Codes: A61B 2018/00732 Frequency
• CPC Class Codes: A61B 2090/049 against light, e.g. laser
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/065 for measuring contact or contact pressure
• CPC Class Codes: A61N 2005/0644 Handheld applicators
• CPC Class Codes: A61N 5/0616 Skin treatment other than tanning
• CPC Class Codes: A61N 5/067 using laser light
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/49111 the connectors connecting two common bonding areas, e.g. Litz or braid wires
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details

Abstract

A light engine for a hand-held dermatological treatment device includes a heat sink, a laser package mounted to the heat sink, the laser package including a laser chip having at least one emitting edge or surface, a pair of lateral structures associated with the heat sink, and an elongated optical element positioned in front of the at least one emitting edge or surface of the laser chip. The elongated optical element extends between the pair of lateral structures associated with the heat sink, and is secured to each of the lateral structures at respective end of the elongated optical element.

Claims

1. A light engine for a hand-held dermatological treatment device, comprising:

a heat sink;

a laser package mounted to the heat sink, the laser package including a laser chip having at least one emitting edge or surface;

a pair of lateral structures associated with the heat sink;

an elongated optical element positioned in front of the at least one emitting edge or surface of the laser chip;

wherein the elongated optical element extends between the pair of lateral structures associated with the heat sink, and is secured to each of the lateral structures at respective end of the elongated optical element.

2. The light engine of claim 1, wherein the elongated optical element comprises a rod lens configured to influence the fast axis beam profile of a beam emitted from the laser chip.

3. The light engine of claim 1, wherein the pair of lateral structures are formed integrally with the heat sink.

4. The light engine of claim 1, wherein the pair of lateral structures comprise opposing walls of a recess formed in the heat sink.

5. The light engine of claim 1, wherein the pair of lateral structures comprise protrusions from the heat sink.

6. The light engine of claim 1, wherein the pair of lateral structures are distinct elements coupled to the heat sink.

8. The light engine of claim 1, wherein:

a layer of thermal grease is provided between a submount of the laser package and the heat sink; and

the layer package submount is secured to the heat sink by UV-cured epoxy.

7. A light engine for a hand-held dermatological treatment device, comprising:

a heat sink;

a laser package mounted to the heat sink, the laser package including a laser chip having at least one emitting edge or surface;

a printed circuit board coupled to the heat sink;

at least one connector that provides an electrical connection between the printed circuit board and the laser chip;

wherein the at least one at least one connector physically biases the laser package against the heat sink.

9. A light engine for a hand-held dermatological treatment device, comprising:

a heat sink;

a laser package mounted to the heat sink, the laser package comprising;

an electrically insulative submount having a top surface;

first and second areas of the submount top surface being covered with an electrically material to provide first and second conductive surface areas, the first and second areas being physically separated from each other by a non-conductive area of the submount top surface;

a laser chip mounted to the first conductive surface area of the submount; and

a plurality of conductors electrically connecting the laser chip to the second conductive surface area of the submount.

10. The light engine of claim 9, further comprising:

a first connector electrically connecting the first conductive surface area of the submount to a printed circuit board; and

a second connector electrically connecting the second conductive surface area of the submount to the printed circuit board.

11. The light engine of claim 9, wherein:

a layer of thermal grease is provided between the laser package submount and the heat sink; and

the layer package submount is secured to the heat sink by UV-cured epoxy.