EP3478203A1 - Apparatus and method for fractional light treatment - Google Patents
Apparatus and method for fractional light treatmentInfo
- Publication number
- EP3478203A1 EP3478203A1 EP17820994.6A EP17820994A EP3478203A1 EP 3478203 A1 EP3478203 A1 EP 3478203A1 EP 17820994 A EP17820994 A EP 17820994A EP 3478203 A1 EP3478203 A1 EP 3478203A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- prism
- skin tissue
- light energy
- light
- beams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/108—Scanning systems having one or more prisms as scanning elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/203—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser applying laser energy to the outside of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00747—Dermatology
- A61B2017/00765—Decreasing the barrier function of skin tissue by radiated energy, e.g. using ultrasound, using laser for skin perforation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00452—Skin
- A61B2018/0047—Upper parts of the skin, e.g. skin peeling or treatment of wrinkles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B2018/1807—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using light other than laser radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B2018/2035—Beam shaping or redirecting; Optical components therefor
- A61B2018/20553—Beam shaping or redirecting; Optical components therefor with special lens or reflector arrangement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B2018/2035—Beam shaping or redirecting; Optical components therefor
- A61B2018/205545—Arrangements for particular spot shape, e.g. square or annular
Definitions
- the present invention relates to apparatus and methods of performing fractional light treatments to human skin and other tissue.
- a plurality of spaced apart light beams impinges on the skin surface and, depending on whether the energy supplied is for non-ablative or ablative treatment, areas of the skin are heated but surrounded by unheated areas (non-ablative) or microchannels are formed in the skin and penetrate to a determined depth into the skin surface, but again, these microchannels are surrounded by areas of non-treatment.
- light beams are delivered to the skin surface as generally parallel beams, such that the microchannel formed are generally parallel to one another within the skin surface.
- the delivery system may be a lens system which splits the light beam, generally from a laser device, into a number of parallel light beams before it reaches the skin surface.
- US Patent Publication No. 2006/0004347 is one example of such an approach.
- Another approach is to use a mirror and galvometric motor systems distal of the laser light beam to direct the laser beams onto a number of rows and columns on the skin surface in seriatim.
- US Patent Nos. 5,743,902; 5,957,915; 6,328,733 typify such a so-called laser scanning system.
- a device for cosmetically treating skin tissue includes: a light source to direct one or more light energy beams to the skin tissue; a prism, the prism being interposed between the light source and the skin tissue; when the light source is activated, the one or more light energy beams pass through the prism, become converged and are focused to one or more focal points at or near the skin tissue surface; and, wherein each of the one or more light energy beams each diverge after passing through the one or more focal points to each create a plurality of microchannels in the skin tissue.
- the light source may be one of: coherent or incoherent light.
- Fig. 1 illustrates a perspective view of a prism structure in accordance with the present invention.
- Fig. 2 illustrates a side interior view of light beams passing through the prism of Fig. 1.
- Fig. 3 illustrates further side interior and top views of light beams passing through a prism flat-top prism in accordance with the present invention.
- Figs. 4 and 5 illustrate prism structures in the form of an array of microlenses.
- Fig. 8 illustrates a prism similar to those of Figs. 1 to 3 and further including an isolation layer of material interposed between the prism bottom surface and a patient's skin tissue.
- the present invention provides a solution to the potential problems described above by directing a number of laser light beams to impinge on the skin surface at a common point by being focused at or near (either above or below) the skin surface but then diverging to create a plurality of subsurface microchannels in the case of ablative treatment or areas of heating in the case of non-ablative heating.
- This treatment technique described in the present invention may become known as "3D Fractional" in that a single or several beam(s) are divided or scanned into multiple three-dimensional beam coverage within the patient's skin tissue.
- the beams will drill microchannels 36, 38 and 40 and/or areas of coagulation.
- one single area of the skin produces multiple channels/ areas of coagulation, thus reducing the disturbance of the epidermis skin surface.
- the prism may be a flat-topped pyramidal prism so that a center beam goes through the prism un-refracted or un-bent, as with beam 37.
- the prism may be placed directly on the epidermis or may be mounted or fixed a predetermined distance from the skin surface, as desired, with the angles of the prism sides with respect to the base being adjusted so the beams become focused at the epidermis surface.
- the prism may be placed or mounted within a housing open at the top and bottom with active or passive cooling of the housing that will cool the prism and thus the patient's skin.
- Fig. 7 illustrates another embodiment of the present invention in which a donut-shaped laser light beam 200 is impinged on a prism 202 which may be like the prisms in Figs. 1, 2 or 3. Once the light beams have impinged on prism 202, they are bent as shown and form in the skin a generally cone shaped ablation/coagulation volume of dimensions much greater than the initial contact or entry into the patient's skin surface 204.
- FIG. 10 illustrates another embodiment of a lens array 500 which includes a plate or holder 502 which mounts or otherwise holds a number of microlenses 504a ... 504n which are oriented to converge light beams 506a to 506n onto a skin surface 508 at focal point 510.
- a light beam 37 impinges the upper flat surface 43 of the flat-topped pyramid. As such, that beam 37 will travel through the prism undeflected. While all three beams 31, 37 and 39 may be of the same" type", that is, one of ablative or non-ablative, they may be "mixed and matched" so that, for example, the central beam 37 may be ablative while any side beams non-ablative or vice-versa, all dependent on the characteristics of the planned skin tissue treatment.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Electromagnetism (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Radiation-Therapy Devices (AREA)
- Laser Surgery Devices (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662355971P | 2016-06-29 | 2016-06-29 | |
PCT/US2017/039199 WO2018005323A1 (en) | 2016-06-29 | 2017-06-26 | Apparatus and method for fractional light treatment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3478203A1 true EP3478203A1 (en) | 2019-05-08 |
EP3478203A4 EP3478203A4 (en) | 2020-01-22 |
Family
ID=60787338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17820994.6A Withdrawn EP3478203A4 (en) | 2016-06-29 | 2017-06-26 | Apparatus and method for fractional light treatment |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3478203A4 (en) |
CN (1) | CN109475383A (en) |
CA (1) | CA3026179A1 (en) |
IL (1) | IL263151A (en) |
WO (1) | WO2018005323A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111399216B (en) * | 2020-04-27 | 2022-11-01 | 武汉海达数云技术有限公司 | Optical scanning assembly, onboard scanning system and optical scanning method |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844638A (en) * | 1973-10-18 | 1974-10-29 | Us Navy | Beam doubler |
US20080172047A1 (en) * | 2000-12-28 | 2008-07-17 | Palomar Medical Technologies, Inc. | Methods And Devices For Fractional Ablation Of Tissue |
CN1568163A (en) * | 2001-03-02 | 2005-01-19 | 帕洛玛医疗技术公司 | Apparatus and method for photocosmetic and photodermatological treatment |
DE10335231B4 (en) * | 2003-08-01 | 2007-06-28 | Lts Lohmann Therapie-Systeme Ag | Method for improving the permeability of human skin and patches for the transdermal delivery of active substances |
DE10338004A1 (en) * | 2003-08-19 | 2005-04-07 | Jk-Holding Gmbh | Device and method for targeted irradiation of the human body |
WO2005099369A2 (en) * | 2004-04-09 | 2005-10-27 | Palomar Medical Technologies, Inc. | Emr treated islets |
US7271914B2 (en) * | 2005-02-02 | 2007-09-18 | National Taiwan University | Biomolecular sensor system utilizing a transverse propagation wave of surface plasmon resonance (SPR) |
US9078680B2 (en) * | 2006-04-12 | 2015-07-14 | Lumenis Ltd. | System and method for microablation of tissue |
WO2008152558A1 (en) * | 2007-06-15 | 2008-12-18 | Koninklijke Philips Electronics N.V. | Improved lighting device |
FR2954690A1 (en) * | 2009-12-29 | 2011-07-01 | Ekkyo | DEVICE FOR DERMATOLOGICAL TREATMENT BY LIGHT BEAM |
JP5493126B2 (en) * | 2010-03-31 | 2014-05-14 | 独立行政法人産業技術総合研究所 | Optical path switching device and optical signal optical path switching method |
CN104203141B (en) * | 2012-04-02 | 2017-02-22 | 皇家飞利浦有限公司 | Light based skin treatment device avoiding LIOB in air |
-
2017
- 2017-06-26 WO PCT/US2017/039199 patent/WO2018005323A1/en unknown
- 2017-06-26 CA CA3026179A patent/CA3026179A1/en not_active Abandoned
- 2017-06-26 EP EP17820994.6A patent/EP3478203A4/en not_active Withdrawn
- 2017-06-26 CN CN201780040055.7A patent/CN109475383A/en active Pending
-
2018
- 2018-11-20 IL IL263151A patent/IL263151A/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018005323A1 (en) | 2018-01-04 |
EP3478203A4 (en) | 2020-01-22 |
CN109475383A (en) | 2019-03-15 |
IL263151A (en) | 2018-12-31 |
CA3026179A1 (en) | 2018-01-04 |
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Extension state: BA ME |
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DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20191219 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: G02B 9/34 20060101ALI20191213BHEP Ipc: G02B 26/10 20060101ALI20191213BHEP Ipc: A61B 18/20 20060101AFI20191213BHEP Ipc: G02B 13/04 20060101ALI20191213BHEP |
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Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20200205 |