Attachment system for a plurality of treatment members

Patent No. US10470970 (titled "Attachment system for a plurality of treatment members") on Jul 3, 2018. The application was issued on Nov 12, 2019.

What is this patent about?

’970 is related to the field of therapeutic massage and percussive treatment devices. Specifically, it addresses the mechanical challenges of securely attaching interchangeable massage heads to a high-frequency reciprocating shaft, where intense vibrations often cause standard components to loosen or fail during operation.

The underlying idea behind ’970 is a modular branching adapter that converts a single reciprocating output into a multi-point treatment surface while maintaining a uniform connection standard. By utilizing a yoke-style main body, the invention allows a user to transition from a single-point massage head to a dual-head configuration without requiring specialized tools or different mounting hardware for the various components.

The claims of ’970 focus on a universal adapter assembly that employs a consistent interchangeable interface across three distinct connection points: the shaft-to-adapter junction and the two adapter-to-treatment-head junctions. This symmetry ensures that the same mechanical locking mechanism used to secure a single head to the device is also used to secure the adapter itself and the subsequent multiple heads attached to it.

In practice, the system utilizes a specialized geometry featuring opposing flat surfaces and spring-loaded detents to prevent rotational slip during high-speed percussion. This mechanical interface ensures that the adapter remains indexed correctly relative to the device housing, while the spring-biased balls provide a tactile snap-fit that resists the axial forces generated during deep tissue treatment.

This approach differs from prior solutions by providing a scalable architecture rather than a fixed, single-purpose attachment. By integrating the same type of attachment system across all interfaces, the invention allows for a seamless ecosystem of parts where the user can swap between single heads and multi-head adapters using a standardized push-pull or twist-lock motion that remains secure under heavy vibration.

How does this patent fit in bigger picture?

Technical Landscape

In the late 2010s when ’970 was filed, handheld therapeutic devices were typically implemented using single-point reciprocating shafts designed for a one-to-one connection with a specific massage head. At a time when high-frequency vibration and percussive forces were standard, systems commonly relied on simple friction-fit or threaded interfaces that were prone to loosening under mechanical stress. Hardware constraints made the secure, simultaneous operation of multiple treatment heads non-trivial, as the rotational and axial forces generated by reciprocating motors often compromised the stability of multi-component attachments.

Prosecution Position

The disclosed invention represents a technical advancement through an architectural shift from single-point contact to a multi-node adapter assembly that enables simultaneous treatment with multiple elements. This is achieved via a specialized interface utilizing a combination of flat surfaces and biased detent mechanisms, which provides a robust mechanical lock capable of resisting the high-vibration environment of a reciprocating shaft. The integration of a main body with diverging arms and standardized male/female attachment members overcomes the constraint of limited treatment surface area while ensuring that interchangeable components remain securely seated during high-frequency operation.

Claims

The patent contains a total of 8 claims, with claims 1 and 6 serving as the independent claims. The independent claims focus on a reciprocal treatment device and a corresponding method of use, specifically featuring an adapter assembly that enables multiple treatment members to be simultaneously connected to a single reciprocating shaft through standardized attachment systems. The dependent claims serve to further define the physical geometry of the adapter arms, specify the use of interchangeable treatment members with varying shapes, and detail the mechanical components of the male and female attachment interfaces.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Adapter assembly
(Claim 1, Claim 6)
The adapter assembly includes a main body portion that includes at least a first top male attachment member or a first top female attachment member on a top thereof and at least first and second bottom male attachment members or first and second bottom female attachment members on a bottom thereof. In a preferred embodiment, the main body portion includes first and second arms extending therefrom. The adapter assembly is connected to a distal end of the shaft and includes a main body having first and second treatment members connected thereto.A multi-port coupling component configured to interface between a single reciprocating shaft and multiple treatment elements, allowing for simultaneous operation of the elements.
Female attachment member
(Claim 1, Claim 6)
The top of the main body portion includes a female attachment member having a shaft recess defined therein that is defined by an interior surface that includes a first flat surface. The female attachment member has a distal end, a proximal end, and a shaft recess defined in the proximal end. The female attachment member is secured in the attachment recess of the treatment member.A receiving coupling component containing a shaft recess defined by an interior surface, configured to mate with a male member via mechanical or magnetic engagement.
Male attachment member
(Claim 1, Claim 6)
The first male attachment member includes an exterior surface with at least a first flat surface, and the exterior surface includes one of a first detent defined therein or a first ball biased therefrom. The male attachment member is disposed in the shaft recess and includes an exterior surface with at least a first opposing flat surface. The first ball is biased into the first detent.A protruding coupling component, often featuring flat surfaces and biased balls or detents, designed to be inserted into a corresponding female recess for securement.
Reciprocal treatment device
(Claim 1, Claim 6)
Therapeutic treatment or massage devices may include interchangeable treatment devices. The device includes a housing and a shaft extending from the housing and operable to reciprocate along a shaft axis. The attachment system is used to secure a treatment element or member to the shaft of a reciprocal treatment device that is used for massage or therapeutic treatment.A therapeutic or massage apparatus featuring a housing and a shaft that moves back and forth along a longitudinal axis to apply treatment.
Treatment member
(Claim 1, Claim 6)
The term treatment device, treatment element or treatment assembly refers to any component that can be removably replaced on the end of the shaft and is not limited to a massage treatment element. The treatment member defines a longitudinal axis, and has a distal end and a proximal end. The treatment member includes a male attachment member or a female attachment member on a top thereof.A removable therapeutic component or massage head that attaches to the adapter or shaft to contact a subject during reciprocation.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
3:25-cv-01074Sep 12, 2025Hyper Ice, Inc. v. Namirsa, Inc.

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US10470970

SEP
Application Number
US16027008A
Filing Date
Jul 3, 2018
Status
Granted
Publication Date
Nov 12, 2019
External Links
Slate, USPTO , Google Patents