Devices and methods for percutaneous energy delivery
a technology of percutaneous energy and devices, applied in the field of devices and methods for percutaneous energy delivery, can solve the problems of skin sagging, wrinkles, and other undesirable distortions, and achieve the effect of preventing the energy from affecting the outer layer of skin and improving appearan
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Treatment Limited to a Reticular Dermis Layer
[0177]Patients were treated with a PID controlled bipolar RF electrode device (a frequency of 460 kHz) configured with 5 pairs of 30 gauge electrodes. The distance between two electrodes of a pair was about 1.25 mm, and the distance between two adjacent electrodes of an adjacent pair was about 2.5 mm. To protect the epidermis from RF heating at the insertion location, a proximal 3 mm of each electrode was insulated with a low-biocompatible material such as Teflon while the distal 3 mm were left exposed to function as the active portion. The treatment device body featured a smart electrode deployment system as described above. In such a system, the electrodes were configured to enter the epidermis at a 20° angle to the skin surface for a distance of 6 mm. Once inserted, each electrode pair transmitted a test current therebetween to sense the impedance of the tissue adjacent to the active portion of the electrodes. The test current is insu...
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