WO2005074830A3 - Hair and lesion removal and treatment of cutaneous conditions - Google Patents

Hair and lesion removal and treatment of cutaneous conditions Download PDF

Info

Publication number
WO2005074830A3
WO2005074830A3 PCT/GB2005/000285 GB2005000285W WO2005074830A3 WO 2005074830 A3 WO2005074830 A3 WO 2005074830A3 GB 2005000285 W GB2005000285 W GB 2005000285W WO 2005074830 A3 WO2005074830 A3 WO 2005074830A3
Authority
WO
WIPO (PCT)
Prior art keywords
hair
melanin
hair shaft
proposed
relaxation time
Prior art date
Application number
PCT/GB2005/000285
Other languages
French (fr)
Other versions
WO2005074830A2 (en
Inventor
Michael Noel Kiernan
Original Assignee
Cyden Ltd
Michael Noel Kiernan
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cyden Ltd, Michael Noel Kiernan filed Critical Cyden Ltd
Publication of WO2005074830A2 publication Critical patent/WO2005074830A2/en
Publication of WO2005074830A3 publication Critical patent/WO2005074830A3/en

Links

Classifications

    • 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
    • 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
    • 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
    • A61B2018/00476—Hair follicles
    • 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

Abstract

A method is proposed for achieving long-term or permanent hair reduction or removal is proposed, which uses low optical energy density levels, typically 5 Joules/cm 2 or less, which is possible by exploiting the differential in the thermal relaxation time of the hair shaft and surrounding melanin in the basal and epidermal layers, namely that the thermal relaxation time of the hair shaft is long compared to that of the individual melanin cells. Therefore, for a given temperature rise, the hair shaft will remain at an elevated temperature for longer than the melanin cells, because the heat diffusion rate is much slower. A sequence of optical pulses, the 'pulse train', is delivered to the treatment site, with ability being provided for the pulses of the pulse train to have a variable duration, intensity and duty cycle. The total optical energy delivered causes a temperature rise in the tissue dependant upon the wavelength, energy density, pulse duration and the tissue parameters of skin colour (which is determined by the melanin content of the skin), the presence of hair and other pigment-containing structures.
PCT/GB2005/000285 2004-02-03 2005-01-28 Hair and lesion removal and treatment of cutaneous conditions WO2005074830A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0402321.4 2004-02-03
GB0402321A GB0402321D0 (en) 2004-02-03 2004-02-03 Hair removal
GB0405327.8 2004-03-10
GB0405327A GB2410690A (en) 2004-02-03 2004-03-10 Hair and lesions removal and treatment of cutaneous conditions

Publications (2)

Publication Number Publication Date
WO2005074830A2 WO2005074830A2 (en) 2005-08-18
WO2005074830A3 true WO2005074830A3 (en) 2005-09-29

Family

ID=31985543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000285 WO2005074830A2 (en) 2004-02-03 2005-01-28 Hair and lesion removal and treatment of cutaneous conditions

Country Status (2)

Country Link
GB (2) GB0402321D0 (en)
WO (1) WO2005074830A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2497479C2 (en) 2008-03-07 2013-11-10 Конинклейке Филипс Электроникс Н.В. Device for photodepilation
FR2963550B1 (en) * 2010-08-06 2013-05-03 Yperion Technology STACKING SURFACE TREATING SYSTEM WITH VARIABLE POWER PULSE SIGNAL GENERATOR AND PROCESSING METHOD THEREOF
EP2499985A1 (en) 2011-03-14 2012-09-19 Koninklijke Philips Electronics N.V. Light based skin care device with controllable fluency level
WO2013173516A1 (en) * 2012-05-15 2013-11-21 Tria Beauty, Inc. Dermatological treatment device with real-time energy control
IL282512B1 (en) * 2018-10-22 2024-01-01 Accure Acne Inc Determination process and predictive closed-loop control of dosimetry using measurement of skin surface temperature and associated methods
US11391634B2 (en) 2019-02-12 2022-07-19 Accure Acne, Inc. Temperature sensing apparatus for use with a photo-thermal targeted treatment system and associated methods
GB202005820D0 (en) * 2020-04-21 2020-06-03 Michelson Diagnostics Ltd Treatment apparatus
JP2022120375A (en) * 2021-02-05 2022-08-18 パナソニックＩｐマネジメント株式会社 Light irradiation type depilator
JP2022120377A (en) * 2021-02-05 2022-08-18 パナソニックＩｐマネジメント株式会社 Photoirradiation type depilation apparatus
EP4299027A1 (en) * 2022-06-28 2024-01-03 Koninklijke Philips N.V. Hair treatment device
EP4344664A1 (en) * 2022-09-28 2024-04-03 Koninklijke Philips N.V. Photo-epilator device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999032193A1 (en) * 1997-12-23 1999-07-01 Esc Medical Systems Ltd. Apparatus for therapeutic electromagnetic treatment
US6080147A (en) * 1998-06-10 2000-06-27 Tobinick; Edward L. Method of employing a flashlamp for removal of hair, veins and capillaries
US20010029364A1 (en) * 1998-10-15 2001-10-11 Stephen Almeida Multiple pulse photo-dermatological device
US20030036751A1 (en) * 2001-05-30 2003-02-20 Anderson R. Rox Apparatus and method for laser treatment with spectroscopic feedback
US6676654B1 (en) * 1997-08-29 2004-01-13 Asah Medico A/S Apparatus for tissue treatment and having a monitor for display of tissue features

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6461348B1 (en) * 1999-08-27 2002-10-08 Howard S. Bertan Photo-thermal epilation apparatus with advanced energy storage arrangement
US6916316B2 (en) * 2002-11-08 2005-07-12 Harvey H. Jay Hair treatment method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6676654B1 (en) * 1997-08-29 2004-01-13 Asah Medico A/S Apparatus for tissue treatment and having a monitor for display of tissue features
WO1999032193A1 (en) * 1997-12-23 1999-07-01 Esc Medical Systems Ltd. Apparatus for therapeutic electromagnetic treatment
US6080147A (en) * 1998-06-10 2000-06-27 Tobinick; Edward L. Method of employing a flashlamp for removal of hair, veins and capillaries
US20010029364A1 (en) * 1998-10-15 2001-10-11 Stephen Almeida Multiple pulse photo-dermatological device
US20030036751A1 (en) * 2001-05-30 2003-02-20 Anderson R. Rox Apparatus and method for laser treatment with spectroscopic feedback

Also Published As

Publication number Publication date
WO2005074830A2 (en) 2005-08-18
GB0405327D0 (en) 2004-04-21
GB2410690A (en) 2005-08-10
GB0402321D0 (en) 2004-03-10

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