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1. CA2579145 - PROCEDE ET APPAREIL DE TRAITEMENT DERMATOLOGIQUE ET REMODELAGE DE TISSUS

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]
WHAT IS CLAIMED IS:
1. A tissue reshaping apparatus comprising: a plurality of needles attached to a base, wherein the base is attached to a housing or part of the housing; an energy source in communication with one or more of the needles; and optionally comprising a control module, wherein the control module permits variation of the characteristics of energy supplied by the energy source.
2. The apparatus of claim 1 wherein one or more of the needles are electrically conductive and the energy source is configured to supply RF current individually to one or more of the needles.
3. The apparatus of claim 2 wherein the energy source and/or control module is
located outside of the housing.
4. The appratus of any one of claims 1 to 3 wherein the energy source is a radio frequency (RF) device capable of outputing signals having frequencies in a desired range.
5. The apparatus of any one of claims 1 to 4 wherein the energy source is capable of outputting an AC or DC electric current.
6. The apparatus of any one of claims 1 to 5 wherein the control module provides application-specific settings to the energy source, and wherein the energy source receives the settings, and generates a current directed to and optionally from specified needles for selectable or predetermined durations, intensities, and sequences based on the settings.
7. The apparatus of any one of claims 1 to 6 wherein the needles comprise sharp distal ends capable of piercing the surface of skin tissue and penetrating into the tissue until the lower side of the base contacts the surface of the skin.
8. The apparatus of any one of claims 1 to 7 wherein the control module is configured to deliver controlled amounts of RF current to one or more of the needles.
9. The apparatus of any one of claims 1 to 8 further comprising a spacer substrate comprising a pattern of small holes through which the plurality of needles protrudes.
10. The apparatus of claim 9 wherein the substrate is movably attached to the base or the housing and wherein the position of the substrate is adjustable relative to that of the base to control the depth of the needles protruding from the lower surface of the spacer substrate.
11. The apparatus of any one of claims 1 to 10 wherein the base and/or optionally, the spacer substrate, is planar or has a lower surface that is contoured to follow the shape of the region of tissue being treated.
12. The apparatus of any one of claims 1 to 11 wherein the base and/or a spacer substrate further comprises cooling means configured to cool a skin surface to reduce or eliminats pain when the plurality of needles penetrates the skin surface.
13. The apparatus of claim 12 wherein said cooling comprises embedded conduits
containing circulating coolant or a Peltier device.
14. The apparatus of any one of claims 1 to 13 wherein said apparatus is configured to deliver RF energy to one or more needles in a monopolar configuration.
15. The apparatus of any one of claims 1 to 13 wherein said apparatus is configured to deliver RF energy to one or more needles in a bipolar configuration.
16. The apparatus of any one of claims 1 to 15 further comprising a vibrational means in communication with the base, where said vibrational means comprises a
piezoelectric device or a motor having an eccentric weight fixed to its shaft.
17. The apparatus claim of 16 wherein the vibrational frequency of said vibrating means is between about 10 hz to about 10 khz, between about 500 hz to about 2 khz, or is about 1 khz.
18. The apparatus claim 17 wherein the vibrational amplitude of said vibrating
means is between about 50-500 µm or between about 100-200 µm.
19. The apparatus of any one of claims 1 to 18 wherein the energy source and the control module are configured to deliver energy to a plurality of pairs of needles in bipolar mode..
20. The apparatus of any one of claims 1 to 19 wherein the diameter of the needles is between about 500-1000 µm or between about 700-800 µm.
21. The apparatus of any one of claims 1 to 20 wherein the average spacing of needles is between about 1 mm and 2 cm, and wherein the needles optionally are not uniformly spaced.
22. The apparatus of any one of claims 1 to 21 wherein one or more of the needles are hollow and are configured to deliver a local analgesic to the tissue surrounding the tip of the needle.
23. The apparatus of any of claims 1 to 22 further comprising an electronic detection device in electrical communication with one or more of the needles that is configured to detect the presence of a nerve near the tip of one or more of the needles.
24. The apparatus of claim 23 wherein the detection device is in communication
with the control module and the control module is configured to prevent the energy source from supplying energy to any needle if a nerve has been detected near that needle.
25. The apparatus of any of claims 1 to 24 further comprising a source of optical energy and one or more hollow needles containing light fibers or light guides, wherein the apparatus is configured to deliver a controlled amount of electromagnetic energy through the light fiber or light guide and into the tissue surrounding the tip of the hollow needle.
26. The apparatus of claim 25 wherein the optical energy source comprises a diode laser, a diode-pumped solid state laser, an Er:YAG laser, a Nd:YAG laser, an argon-ion laser, a He-Ne laser, a carbon dioxide laser, an eximer laser, or a ruby laser, and wherein the electromagnetic energy conveyed by the light guide or light fiber is continuous or pulsed.
27. A method of treating skin comprising the steps of: providing a plurality of needles attached to a base; providing an energy source in communication with one or more of the needles; inserting the needles into the skin to a predetermined depth; and supplying energy to more than one of the needles to induce a pattern of damage in the tissue surrounding the needles.
28. The method of claim 27 further comprising: providing a control module, wherein the control module permits variation of the characteristics of energy supplied by the energy source.
29. The method of claim 28 further comprising: providing cooling means to cool the surface of the skin, and optionally the plurality of needles, before inserting the needles into the skin.
30. The method of claim 29 wherein the energy is RF current and the needles are insulated except near their tips.
31. The method of claim 30 further comprising: providing a detection device in communication with one or more of the needles; supplying low current to one or more of the needles sequentially to detect the
presence of a nerve near the needles; and
preventing the energy source from supplying energy to any needle if a nerve has been detected near that needle.
32. The method of claim 27 further comprising: providing one or more hollow needles attached to the base and injecting an analgesic through the hollow needles into the surrounding tissue after the needles are inserting into the skin.
33. The method of claim 29 further comprising: providing hollow needles containing light fibers or light guides in communication with the energy source, wherein the energy source is a source of optical energy;
supplying energy to the light fibers or light guides to induce thermal damage in a portion of the tissue surrounding the hollow needles.