Granted Patent B2

US 12,702,213 · App. 18/774,232 · Granted Aug 11, 2026

Inventor: Dara Levy (Highland Park, IL)

Assignee: DD Karma LLC

A45D26/0004A61B17/320068A61B17/54A61B50/20B26B7/00H02J7/00H02J7/70H02J50/10A45D2200/1054A45D2200/207A61B2017/00398A61B2017/00473A61B2017/00734A61B2017/00761A61B2017/320071

Abstract

Claims (12)

1 . A blade kit for a hand-held skin treatment device, the skin treatment device including an elongate handle with a head at a distal end thereof for connecting with a blade assembly, the blade kit comprising:

a blade retainer including a plurality of elongated retainer slots arranged adjacent each other in a side-by-side arrangement, each retainer slot extending in a longitudinal direction;

a plurality of blade assemblies positioned in the plurality of retainer slots, each blade assembly including a pair of connectors configured to detachably connect the blade assembly to the head of the skin treatment device, each blade assembly further including opposite sides extending in the longitudinal direction and a notch located on a side thereof, each blade assembly further including only one blade, the blade being centered between the opposite sides thereof, the blade including a cutting edge extending in the longitudinal direction, the cutting edge being centered between the opposite sides of the blade assembly; and

a blade assembly retainer located at a side of each retainer slot, the blade assembly retainer cooperating with the notch to releasably retain the blade assembly in the retainer slot, the blade being positioned between the blade assembly retainer and an opposite side of the retainer slot.

2 . The blade kit according to claim 1 , wherein the notch is configured to be located between the head of the skin treatment device and the cutting edge when the blade assembly is connected to the head.

3 . The blade kit according to claim 1 , wherein the blade assembly includes a safety cage adjacent the blade, the safety cage configured to limit penetration of the blade into the skin.

4 . The blade kit according to claim 3 , wherein the safety cage includes a plurality of teeth protruding a distance beyond the cutting edge.

5 . The blade kit according to claim 4 , wherein the safety cage includes a first cage portion and a second cage portion, the blade being located between the first and second cage portions.

6 . The blade kit according to claim 5 , wherein the blade includes a first side and a second side, the first cage portion located adjacent the first side of the blade and the second cage portion located adjacent the second side of the blade.

7 . The blade kit according to claim 1 , wherein the blade assembly retainer is configured to release the blade assembly from the retainer slot in response to application of an upward force to the blade assembly away from the retainer slot.

8 . The blade kit according to claim 1 , wherein the blade retainer includes six retainer slots with a corresponding blade assembly retained therein.

9 . The blade kit according to claim 1 , wherein each blade assembly is oriented in the blade retainer to enable the blade assembly to be loaded directly onto the skin treatment device without requiring a user to touch the blade assembly.

Assignments (1)

Continuity (7)

References Cited (153)