Electrode cartridge for skin treatment and electrode cartridge coupling structure comprising same

2:

• The cartridge of claim 1, wherein the drug supply part is a drug supply roll member formed in a roll shape and equipped with multiple microneedles on an outer surface thereof for transdermal drug delivery.

3:

• The cartridge of claim 2, wherein the drug supply roll member is configured such that the microneedles are made from a biodegradable material containing a drug ingredient so that when the microneedles penetrate the skin, the microneedles dissolve through interaction with body fluids, releasing the drug ingredient contained within into the skin.

4:

• The cartridge of claim 2, wherein the electrode part comprises:
• a first electrode panel member and a second electrode panel member respectively provided on opposite sides of the drug supply roll member and detachably connected to each other by penetrating the drug supply roll member.

5:

• The cartridge of claim 4, wherein the first electrode panel member and the second electrode panel member each have massage protrusions, which can stimulate the skin, spaced apart from each other on a contact surface that comes into contact with the skin.

6:

• The cartridge of claim 4, wherein the drug supply roll member has an electrode-coupling hollow part disposed in a width direction in a manner that enables penetration,
• wherein the first electrode panel member has a first electrode coupling part protruding from a surface thereof facing the second electrode panel member to be inserted into the electrode-coupling hollow part, and the second electrode panel member has a second electrode coupling part protruding from a surface thereof facing the first electrode panel member to be inserted into the electrode-coupling hollow part and detachably coupled to the first electrode coupling part.

7:

• The cartridge of claim 6, wherein the first electrode coupling part and the second electrode coupling part are detachably connected to each other by screw connection.

10:

• The structure of claim 9, wherein the ball plunger part and the ball insertion part share an electrical terminal structure that provides electrical connectivity therebetween so as to electrically connect the electrode part and the control body.

11:

• The structure of claim 8, further comprising:
• an auxiliary electrode part located on an end side of the cartridge coupling part,
• wherein the electrode part functions as an RF electrode having one polarity, and the auxiliary electrode part functions as an RF electrode having an opposite polarity.

12:

• The structure of claim 9, wherein the electrode cartridge is provided with a ring-shaped contact protrusion on each side thereof that surrounds the ball plunger part.

13:

• The structure of claim 12, wherein on the inner side of the cartridge coupling part, a cartridge stopper part is positioned to protrude, which catches the contact protrusion and prevents the electrode cartridge from being pushed and moved inward of the cartridge coupling part while in contact with the skin.

14:

• The structure of claim 13, wherein the cartridge stopper part is provided with a ball bearing part that rolls while in contact with the contact protrusion on a surface thereof facing the contact protrusion.

15:

• The structure of claim 9, further comprising:
• a cartridge separation part positioned within the cartridge coupling part to be able to move forward and backward in a coupling direction of the electrode cartridge, and configured to push the electrode cartridge to separate the electrode cartridge from the cartridge coupling part.

17:

• The structure of claim 16, wherein the cartridge separation part further comprises:
• a manipulation switch part located on the cartridge coupling object to allow a practitioner to control an operation of the linear movement device.