Patent ID: 9675407
Date: 2017-06-13
CPC Classifications: A61B,A61N

Claim:
1. A radio frequency (RF) treatment apparatus, comprising a main machine and a treatment handpiece, wherein: the main machine comprises a power supply disposed therein and is coupled to the treatment handpiece via a cable; the treatment handpiece comprises an RF output device, the RF output device comprising a plurality of RF electrodes; in the treatment handpiece, the plurality of RF electrodes are mounted on a bottom side of a base and comprise a plurality of printed circuit nodes or a plurality of RF electrode microneedles; the plurality of RF electrodes are arranged in a dot matrix pattern; the plurality of RF electrodes are arranged in an M×N matrix, where M and N represent a number of rows and a number of columns respectively and are integers ≧2; electrode (i, j) and electrode (i+1, j+1) are series-connected into a branch, wherein 1≦i≦M−1 and 1≦j≦N−1; electrode (M, 1) and electrode (1, N) in a first branch where a portion of the M×N matrix that are of odd numbers are parallel-connected with a second branch where i is an odd number to form an electrode in an overall circuit; and electrode (M, 1) and electrode (1, N) in a third branch where a portion of the M×N matrix that are of even numbers are parallel-connected with a fourth branch where i is an even number to form an opposite electrode in the overall circuit; wherein the M×N matrix is configured to improve current distribution uniformity suitable for stimulating regeneration of collagen and promoting tightening of fibrous tissues.