Removable tips for use with skin treatment systems

Patent No. US10357642 (titled "Removable tips for use with skin treatment systems") on Jul 26, 2017. The application was issued on Jul 23, 2019.

What is this patent about?

'642 is related to the field of skin resurfacing and dermatological care, specifically focusing on systems that combine mechanical exfoliation with the controlled delivery of therapeutic serums. The technology addresses the limitations of traditional microdermabrasion by integrating a fluidic system that hydrates and treats the skin simultaneously with the removal of dead tissue.

The underlying idea behind '642 is the use of a specialized treatment head featuring a spiral-like abrasive geometry that manages fluid dynamics at the point of contact. By arranging abrasive ridges in a spiral pattern, the device creates a controlled flow path for serums, increasing the contact time between the skin and the treatment fluid while simultaneously providing mechanical planing or exfoliation.

The claims of '642 focus on a treatment tip characterized by a monolithic construction that integrates an outer sealing boundary with internal spiral abrasive members. The independent claims specifically protect the geometric configuration of the tip, including its angled distal face for improved ergonomic contact and a skirt portion with a widened diameter to facilitate secure coupling and removal from a handpiece.

In practice, the system utilizes a vacuum to draw the patient's skin into contact with the spiral ridges while circulating fluids through dedicated intake and exhaust ports. This vortex-style circulation ensures that impurities and exfoliated debris are efficiently evacuated into a waste container while the healthy underlying tissue is bathed in antioxidants or salicylic acid serums.

This approach differs from prior art by replacing loose abrasive crystals or simple flat diamond tips with a fluid-guiding abrasive manifold. Unlike traditional dry dermabrasion which can be messy and irritating, this invention uses the spiral architecture to regulate serum detention time, ensuring deeper penetration of active ingredients and a more uniform exfoliation process without the need for secondary moisturizing steps.

How does this patent fit in bigger picture?

Technical Landscape

In the mid-2000s when ’642 was filed, mechanical skin resurfacing was typically implemented using either high-speed abrasive burrs in dermabrasion or pressurized streams of aluminum oxide crystals in microdermabrasion. At a time when these systems commonly relied on dry mechanical friction to exfoliate the stratum corneum, the delivery of therapeutic fluids was generally restricted to topical application following the procedure. Hardware constraints made the simultaneous integration of controlled abrasion, fluid delivery, and waste evacuation non-trivial, as existing suction systems were primarily designed to capture dry debris rather than manage a continuous liquid-to-skin interface without leakage or loss of vacuum pressure.

Prosecution Position

The disclosed invention represents a technical advancement through the architectural integration of a closed-loop fluid delivery system within a mechanical exfoliation handpiece. By utilizing a specialized tip featuring a spiral inner member and a skirt portion, the system creates a localized treatment chamber when engaged with the skin. This structure enables a specific technical effect where treatment fluids are actively circulated across the target area via defined channels between supply and return apertures. This architectural shift allows for simultaneous exfoliation and deep-tissue hydration, overcoming the technical constraint of passive ingredient migration by utilizing the vacuum-induced chamber to facilitate active fluid exchange during the removal of skin layers.

Claims

The patent contains a total of 14 claims, with claims 1, 8, and 13 serving as the independent claims. These independent claims focus on the structural design of a skin treatment tip, specifically highlighting features such as a monolithic body with spiral-patterned abrasive inner members, an angled distal end to increase skin contact area, and a specialized skirt portion with a gripping surface for handpiece attachment. The dependent claims serve to further define the tip by specifying additional components like vacuum and fluid delivery passages, the inclusion of embedded treatment materials, and particular abrasive structures such as sharp blades.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Angled distal end
(Claim 8)
The distal end of the tip is angled with respect to a longitudinal axis of the handpiece assembly to which the tip is coupled. The angled distal end increases a contact area between the tip and a subject's skin. The outer member engages the target with the tip.A treatment surface at the tip's extremity that is oriented at a non-perpendicular angle relative to the longitudinal axis of the handpiece to increase skin contact area.
Inner member
(Claim 1, Claim 8, Claim 13)
An inner member extends in a generally spiral fashion across at least a portion of a distal face of the central body portion. The inner member defines a channel between the first passage and the at least one second passage. When the tip is place against the skin, a chamber can be formed by the channel and the person's skin.A structural element located within the boundary of the tip's distal face designed to mechanically abrade skin and/or define fluid flow paths.
Monolithically formed
(Claim 1)
The tip body, the outer member and the at least one inner member are monolithically formed. The tip comprises a skirt portion configured to couple to a handpiece for treating a target on a patient's skin. A central body portion is coupled to the skirt portion and includes a mounting region substantially opposite the skirt portion.Constructed as a single, continuous piece of material rather than an assembly of separate parts.
Skirt portion
(Claim 13)
A tip comprising a skirt portion is configured to couple to a handpiece for treating a target area on a patient's skin. The skirt portion comprises a gripping surface to assist in attaching the tip to the handpiece assembly and removing the tip from the handpiece assembly. A diameter or other cross-sectional dimension of the tip is greater along the skirt portion than along the tip body.A section of the tip, typically having a larger diameter than the main body, designed for coupling to a handpiece and providing a surface for manual gripping.
Spiral-like pattern
(Claim 1, Claim 8, Claim 13)
An inner member extends in a generally spiral fashion across at least a portion of a distal face of the central body portion. In some variations, treatment fluid flows outwardly along the channel. In some variations, treatment fluid flows inwardly along the channel.A geometric arrangement of the abrasive inner members that follows a curved path winding around a central point or axis.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
0:25-cv-61262Jun 24, 2025Hydrafacial Llc V. Bq Aesthetix & Co., Llc

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US10357642

Application Number
US15660777A
Filing Date
Jul 26, 2017
Publication Date
Jul 23, 2019
External Links
Slate, USPTO , Google Patents