Granted Patent B2

US 12,295,618 · App. 17/685,005 · Granted May 13, 2025

Inventors: Ed F. Nicolas (Signal Hill, CA); William Cohen (Los Alamitos, CA)

Assignee: HydraFacial LLC

A61B17/545A61B2017/00761A61B2017/320004A61B2217/005

Abstract

Claims (31)

1. An applicator tip for a handpiece, the applicator tip configured to abrade a surface of a skin of a patient, the tip comprising:

a proximal end;

a distal end with a distal surface configured to contact skin tissue, the distal end comprising a first wall extending along an outer portion of the tip, and

an orifice extending from the proximal end to the distal end for passage of a treatment fluid to skin tissue;

at least one second wall extending from the first wall toward the orifice, wherein the first wall and the at least one second wall define at least one sector, the at least one sector being recessed relative to the first wall and the at least one second wall;

wherein the at least one sector comprises:

an opening to allow the treatment fluid to enter the at least one sector;

a barrier configured to direct the treatment fluid within the at least one sector; and

a vacuum port to remove waste from the at least one sector through the vacuum port;

wherein the barrier induces a swirling effect within the treatment fluid as at least part of a flow path passes from the orifice along the barrier to the vacuum port.

2. The tip of claim 1 , wherein an opening of the barrier opens toward the at least one second wall to extend the flow path in the at least one sector.

3. The tip of claim 2 , wherein the flow path increases a residence time of the treatment fluid on the skin.

4. The tip of claim 1 , wherein the barrier is configured to induce a vortex pattern within a radially defined portion of the barrier when the treatment fluid is introduced at the orifice and a vacuum is applied at the vacuum port.

5. The tip of claim 1 , wherein the at least one second wall substantially prevents contamination of treatment fluid between the at least one sector.

6. The tip of claim 1 , wherein the barrier is C-shaped.

7. The tip of claim 6 , wherein the C-shaped barrier defines a preferred flow direction along an elongated path within the at least one sector to the vacuum port.

8. The tip of claim 1 , wherein a height of the barrier is lower than a height of the distal surface such that skin tissue contacts an abrasive portion of the tip; and

wherein the abrasive portion comprises the at least one second wall or the barrier.

9. The tip of claim 8 , wherein the abrasive portion is configured to remove a portion of the skin tissue as the tip is advanced along the skin tissue.

10. The tip of claim 1 , wherein the vacuum port can be connected to a vacuum source to draw treatment fluid from the orifice to the at least one sector; and

wherein activation of the vacuum source is configured to form a substantially airtight seal between the distal surface and the skin tissue.

11. An applicator tip for a handpiece, the applicator tip configured to abrade a surface of a skin of a patient, the tip comprising:

a proximal end;

a distal end with a distal surface configured to contact skin tissue, the distal end comprising a first wall extending along an outer portion of the tip, and an orifice extending from the proximal end to the distal end for passage of a treatment fluid to skin tissue;

at least one second wall extending from the first wall toward the orifice, wherein the first wall and the at least one second wall define at least one sector, the at least one sector being recessed relative to the first wall and the at least one second wall;

wherein the at least one sector comprises:

an opening to allow the treatment fluid to enter the at least one sector;

a C-shaped barrier configured to direct the treatment fluid within the at least one sector; and

a vacuum port to remove waste from the at least one sector through the vacuum port;

wherein the barrier induces a swirling effect within the treatment fluid as at least part of a flow path passes from the orifice along the barrier to the vacuum port;

wherein the C-shaped barrier defines a preferred flow direction along an elongated path within the at least one sector to the vacuum port.

Assignments (3)

Continuity (3)

References Cited (400)

Cited By (4)

US 1,112,778 US 1,116,120 US 1,141,134 US 12,478,771