US 12,752,091 B2 · Method for manufacturing fractional microneedle module having partitioned zones high frequency

Abstract

A method for manufacturing a fractional microneedle module includes generating a conductive flat plate and partitioning it into m×m parts to generate N partitioned zones. M grooves are formed within these partitioned zones, into which M fractional microneedles are inserted. Each needle is connected to an electrical connection terminal to receive a high-frequency signal. The method further involves distributing high-frequency energy to each of the N partitioned zones through the needles. In one embodiment, electrically isolated switching elements, such as photo field effect transistors (FETs), are connected to the partitioned zones to control current flow. The microneedles may further include an insulating film made of parylene or Teflon coated on the needle body.

Claims11

Dependent claims

A method for manufacturing a fractional microneedle module having partitioned zones using high frequency, the method comprising:

generating a flat plate made of a conductive material;
partitioning the flat plate having conductivity into m×m parts to generate N partitioned zones;
generating M grooves into which fractional microneedles are inserted in the N partitioned zones and inserting M fractional microneedles into the M grooves;
connecting each of the M fractional microneedles with an electrical connection terminal so that a high-frequency signal is applied to the M fractional microneedles;
and
uniformly distributing high-frequency energy to each of the N partitioned zones so that the high-frequency energy is uniformly injected into a dermal layer of skin due to the M fractional microneedles being electrically connected to the electrical connection terminal.

3 more elements

A method for manufacturing a fractional microneedle module having partitioned zones using high frequency, the method comprising:

generating a flat plate made of a conductive material;
partitioning the flat plate having conductivity into m×m parts to generate N partitioned zones;
generating M grooves into which fractional microneedles are inserted in the N partitioned zones and inserting M fractional microneedles into the M grooves;
connecting electrically isolated switching elements serving as switches in parallel for each of the N partitioned zones so that current is conducted sequentially or non-sequentially between the N partitioned zones;
allowing a high-frequency signal to be applied to each of the M fractional microneedles connected to an electrical connection terminal as the electrically isolated switching element is turned on;
and
injecting the high-frequency signal with an energy intensity of 1/N of input power to each of the N partitioned zones due to the M fractional microneedles being electrically connected to the electrical connection terminal.

4 more elements

Dependencies are inferred from the claim text.

Method for manufacturing fractional microneedle module having partitioned zones high frequency

Life of this patent

Method for manufacturing fractional microneedle module having partitioned zones high frequency

Life of this patent

Abstract

Claims11