Granted Patent B2

US 12,733,956 · App. 19/071,679 · Granted Sep 15, 2026

Inventors: Franklin J. Chang (Pasadena, CA); Henry Ping Chang (Pasadena, CA)

A61B17/54A61M37/00A61B2017/00747A61B2017/320004A61B2217/005A61M2037/0007

Abstract

Claims (61)

1 . A microdermabrasion device with a serum bottle attached, comprising:

a tip comprising multiple nesting structures being an outer structure of the tip comprising electrodes at the proximal end of the tip and wiring for delivering current to the electrodes, an intermediate structure positioned within the outer structure and an inner structure comprises a fluid delivery tip and vacuum entry port;

wherein the inner structure is located at the center of the tip, the outer structure is located at the periphery of the tip and the intermediate structure is located between the inner structure and the outer structure;

wherein the outer structure, intermediate structure, and the inner structure are coaxial with each other and are in a ring shape;

wherein the intermediate structure encircles the fluid delivery tip and vacuum entry port of the fluid delivery; and

wherein electrodes are aligned at the outer structure to encircle an abrading end portion of the intermediate structure;

one or more fluid apertures positioned on the inner structure to facilitate both vacuum suction and fluid outlet functionalities; and

one or more grooves, wherein:

wherein the grooves are structured to guide exfoliated debris toward the vacuum port and enhance fluid flow

the tips are crafted from a plastic material; and

the tips have an abrasive coating affixed via an adhesive-based bonding process;

a quick-connect serum bottle attachment attached at a downward-sloping incline to the microdermabrasion device, comprising a housing for serum, a serum cartridge, a coupling part for the serum cartridge, wherein the housing envelops the serum cartridge to hold it in place on a superior aspect of the microdermabrasion device and the coupling part has a notch configured to receive and retain a protrusion on the serum cartridge; and

an opening molded to mate with a serum bottle, wherein:

the opening comprises a male connection equipped with threads or a puncturing tube;

the serum bottle is fitted with a cap or foil cap, threaded or connected to the male tube upon insertion; and

the male tube punctures or threads onto the serum bottle, forming a secure seal and allowing fluid to flow through a vacuum tube inside a handpiece, wherein serum flows through the spindle shaft and the attached multifunctional tip onto the skin applying surface;

a first tubing segment connected to the opening, wherein the first tubing segment is in a kidney bean shape configured to hold serum;

a second tubing segment connecting the first tubing segment to a first tube coupling attached to the core inlet rearward of a motor, wherein the second tubing segment travels around the motor from the first tubing segment to the first tube coupling;

wherein the quick-connect serum bottle attachment attached at a downward-sloping incline to the microdermabrasion device is mounted forward of the motor, the motor powering the tip.

2 . The tip for a microdermabrasion device of claim 1 , wherein the abrasive coating is Emery sand.

3 . The tip for a microdermabrasion device of claim 2 , further comprising an Epoxy resin adhesive.

4 . The tip for a microdermabrasion device of claim 3 , wherein the adhesive is electrostatically sprayed onto the surface and then the sand is electrostatically sprayed onto the surface.

5 . The tip for a microdermabrasion device of claim 4 , wherein tip is baked at a temperature of 80° C. for 2 hours.

6 . A method for skin exfoliation and serum infusion using the device of claim 1 , comprising:

Positioning the motorized exfoliating tip onto a targeted treatment area of the skin;

Activating the motorized exfoliating tip to perform circular, oscillatory, or multidirectional motion over the stationary treatment spot;

Simultaneously infusing a treatment serum through a fluid conduit integrated within or external to the motorized tip; and

Applying vacuum suction to remove exfoliated debris and enhance serum penetration without requiring manual movement across the skin.

7 . The method of claim 6 , wherein:

the exfoliation and infusion occur simultaneously, allowing deeper serum penetration into the freshly exfoliated skin layers; and

the motorized tip operates between 10-2000 RPM, eliminating the need for manual force or repetitive passes.

8 . A method for spot-treatment microdermabrasion using the device of claim 1 , comprising:

Placing the motorized exfoliation tip directly on a target skin spot without requiring linear movement of the hand;

Engaging the motorized exfoliation mechanism to abrade the skin and deliver serum in a localized area;

Utilizing a vacuum-assisted debris removal system to clear exfoliated skin without clogging pores or requiring manual wiping; and

Allowing the skin treatment to be applied precisely and efficiently without excessive manual pressure or motion.

9 . The method of claim 8 , further comprising:

Activating the motorized, vacuum-assisted exfoliation system;

Placing the motorized tip on the skin without requiring force to initiate exfoliation;

Delivering serum into the skin at the moment of exfoliation, ensuring higher fluid absorption than static tips; and

Controlling the exfoliation speed and depth electronically, rather than relying on manual hand pressure.

10 . The method of claim 8 , further comprising:

Exfoliating a targeted skin area using the motorized tip that moves in a controlled circular motion;

Applying negative vacuum pressure to simultaneously lift and open microchannels in the exfoliated skin;

Infusing a treatment solution from the serum cartridge through the motorized tip, ensuring treatment solution delivery reaches deeper skin layers; and

Maintaining constant contact with the skin without requiring linear manual passes or repetitive movements, wherein treatment solution penetrates beyond the stratum corneum.

11 . The method of claim 8 , further comprising:

Using the motorized exfoliation tip to perform automatic spot treatment;

Eliminating the need for manual scraping, pressure application, or repetitive linear strokes;

Allowing the vacuum-assisted debris removal to work in tandem with motorized exfoliation, ensuring a clean and efficient procedure; and

Enhancing treatment precision by stabilizing the device on the skin, rather than relying on manual control of abrasion intensity.

12 . The method of claim 8 , further comprising:

Using a disposable motorized exfoliation tip with pre-applied abrasive coating;

Ensuring each treatment is conducted with a fresh tip, reducing the risk of bacterial transmission;

Integrating a fluid delivery system that directly infuses serum, preventing the need for manual serum application post-exfoliation; and

Combining exfoliation, infusion, and vacuum-assisted removal into a single-use, contamination-free treatment cycle.

13 . The method of claim 8 , further comprising:

Providing the motorized exfoliation tip with variable speed settings;

Allowing real-time speed adjustments to cater to different skin types and conditions;

Using a sensor-controlled system to automatically adjust exfoliation speed based on skin resistance; and

Delivering customized skin treatment without requiring manual speed adjustments by the operator.

Continuity (1)

References Cited (13)