Handpiece for RF treatment of tissue

A technology of RF electrodes and components, applied in the field of RF electrode handpieces, can solve problems such as insufficient cooling

Inactive Publication Date: 2005-06-15
THERMAGE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, while the cooling effect is reduced to such that there is good thermal effect at the center of the electrode, it may not cool sufficiently to protect the tissue in contact with the edge of the electrode.

Method used

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  • Handpiece for RF treatment of tissue
  • Handpiece for RF treatment of tissue
  • Handpiece for RF treatment of tissue

Examples

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Embodiment Construction

[0033]Referring now to FIG. 1 , one embodiment of the present invention is a handpiece 10 having a handpiece assembly 12 . The handpiece assembly 12 includes a handpiece housing 14 and a cooling fluid medium valve member 16 . The electrode assembly 18 is connected to the handpiece housing 14 . The electrode assembly 18 has at least one RF electrode 20 that is thermally coupled to the skin surface when at least a portion of the RF electrode 20 is in contact with the skin surface. Without limiting the scope of the invention, the thickness of the RF electrode 20 is in the range of 0.010 to 1.0 mm.

[0034] Handpiece 10 provides a more uniform thermal effect in selected depths of tissue while preventing or reducing thermal damage to the skin surface and other non-target tissue. The handpiece 10 is connected to an RF generator. The RF electrode 20 can operate in a monopolar or bipolar mode. Handpiece 10 is configured to reduce (or preferably eliminate) edge effects and hot spot...

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PUM

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Abstract

A handpiece has a handpiece assembly and includes a handpiece housing. An insert is detachably coupled to the handpiece housing. The insert includes an RF electrode with a conductive portion and a dielectric.

Description

technical field [0001] The present invention generally relates to a handpiece for treating tissue, and in particular to an RF electrode handpiece for treating skin and underlying tissues. Background technique [0002] Human skin consists of two parts: the epidermis and the underlying dermis. The epidermis with the stratum corneum acts as a biological barrier to the external environment. In the basal layer of the epidermis, there are pigment-forming cells called melanocytes. They are determinants of skin color. [0003] The underlying dermis provides the primary structural support of the skin. It mainly consists of an extracellular protein called collagen. Collagen is produced by fibroblasts and synthesized as a triple helix with three polypeptide chains connected by heat-labile and heat-stable chemical bonds. When tissue containing collagen is heated, at characteristic temperatures, the physical properties of the protein matrix will change. At a specific "shrink" tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/06A61B17/00A61B18/00A61B18/12A61B18/14A61B19/00A61N1/40A61N5/04
CPCA61B18/14A61B18/1402A61B18/148A61B2018/00011A61B2018/00023A61B2018/00452A61B2018/00702A61B2018/00779A61B2018/00791A61B2018/00875A61B2018/1495A61N1/403A61B2090/064A61B2090/065A61B18/12A61B18/04A61B18/18
Inventor 罗杰·斯特恩米切尔·莱文森布赖恩·威伯
Owner THERMAGE INC
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