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Orthopaedic, Trauma & Prosthetics
Wonderful 1SCF-001

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Wonderful Orthopaedic, Trauma & Prosthetics

Wonderful 1SCF-001

Product Code: OTAP-PLAC-3176

Keel, shell and sock, matched as one assembly.

A spring keel and the shell around it are not independent choices. The shell restrains how the keel flexes, so a set designed together behaves predictably in a way a mixed pairing may not. Listed on Medigear.uk for UK business buyers.

Sections

Prosthetic Feet & Knees

Categories

Orthopaedic, Trauma & Prosthetics

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

An energy storing foot is two engineered parts that have to agree with each other.

The keel is the working element. A carbon fibre plate runs the length of the foot, and as body weight rolls forward it deflects, storing strain energy. Towards the end of stance, as load moves onto the forefoot and begins to unload, the plate straightens and returns part of that energy into push-off. Carbon composites are used for this because they combine high stiffness with low hysteresis, meaning a high proportion of what goes in comes back rather than dissipating as heat.

The shell is what the keel lives inside. It gives the assembly the outline of a foot, fills a shoe and carries the finish, and it takes the abrasion that the keel would otherwise suffer. But it is not a passive cover: the keel deflects within it, and a shell that resists that deflection restrains the keel. Shell stiffness is therefore part of how the foot performs, not only how it looks.

That is the argument for buying them together. A keel and a shell designed as a set have had that interaction accounted for, and the foot behaves as the manufacturer intended. Pairing a keel with a shell chosen on size alone can quietly alter its response, and the change does not announce itself.

The adapter mounted on the plate completes the assembly. Rather than bolting a separate foot adapter into a moulded recess, the connection is built onto the keel, which removes an interface, saves build height and puts the alignment adjustment directly on the structural element. What type of connection it is, and what it is rated to, are specification questions rather than assumptions.

Stiffness category is where clinical selection happens. Carbon keels are supplied in several stiffnesses matched to user weight and activity level, and the match matters in both directions: a keel too stiff for its user barely deflects and returns nothing, while one too compliant deflects too far and feels unstable in late stance. That selection is made against the manufacturer's chart, which is why the categories and their weight bands need to be in hand before specifying.

The sock protects the shell surface and damps noise from the keel moving inside it, which on a deflecting carbon plate is more noticeable than on a rigid foot.

This is an assembly supplied for fitting within a prosthesis by a qualified prosthetist, who selects size and stiffness, fits the assembly and sets alignment at the integrated adapter. The manufacturer, contents, keel construction, stiffness categories, ratings, adapter type, sizing and replacement availability are provided by the seller at quotation, with UKCA or CE marking documentation, the declaration of conformity, instructions for use and warranty terms issued by the manufacturer or held by the seller.

Active users walking longer distances are the group energy storing feet are specified for.

Faster walking speeds put more energy into the keel at each step, where the return is most apparent.

Varied ground is met more forgivingly by a keel that deflects than by a rigid structure.

Stiffness selection matched to weight and activity determines whether the foot performs as intended.

Build height is affected by the integrated adapter, which removes a separate foot adapter from the stack.

Alignment is set at the adapter mounted on the keel, directly on the structural element.

Clinics fitting across activity levels need the stiffness categories and their weight bands in hand.

Energy Returned at Push-Off

The carbon plate deflects under load and straightens as stance ends, returning part of the stored energy.

Low Hysteresis in the Material

Composites return a high proportion of stored energy rather than dissipating it as heat.

Keel and Shell Designed Together

The shell restrains keel deflection, and a matched set has that interaction accounted for.

Predictable Behaviour in Service

A foot supplied as an assembly performs as the manufacturer intended rather than as a mixed pairing might.

An Interface Removed

The adapter is built onto the keel rather than bolted into a moulded recess, saving an interface and build height.

Alignment on the Structural Element

Adjustment is made at the adapter mounted directly on the keel.

Stiffness Matched to the User

Categories selected against weight and activity ensure the keel deflects usefully rather than too little or too far.

Shell Surface Protected

The sock takes abrasion from the shoe lining and damps noise from the deflecting plate.

Construction Visible and Confirmed

The carbon plate is evident on this item, unlike others in the range where keel material is described inconsistently.

Replacement Parts Established

Shell and sock wear faster than the keel, so individual availability is confirmed before committing.

Supply and Documentation Arranged

Medigear.uk can arrange supply, documentation and the provision of consumables.

Prosthetic Foot Assembly

Comprising a carbon fibre keel with integrated adapter, a foot shell and a sock.

Item Reference: 1SCF-001

To be confirmed against the manufacturer's marking.

Manufacturer

Wonderful Rehabilitation, to be confirmed at quotation.

Carbon Fibre Keel

Deflecting under load and returning energy at push-off, with layup confirmed at quotation.

Integrated Adapter

Mounted on the keel, with type and rating confirmed at quotation.

Foot Shell

Moulded outer receiving the keel and carrying the finish.

Cosmetic Sock

Protecting the shell surface and damping keel noise.

Stiffness Categories

Confirmed at quotation, matched to user weight and activity.

Maximum Patient Weight

Confirmed at quotation per size and stiffness.

Activity Level Indicated

Confirmed at quotation.

Size Range

Confirmed at quotation.

Left and Right Handing

Confirmed at quotation.

Shell Colours and Finishes

Confirmed at quotation.

Heel Height and Build Height

Confirmed at quotation.

Replacement Shells and Socks

Availability confirmed at quotation.

UKCA or CE Marking and Declaration of Conformity

Issued by the manufacturer and requested from the seller at quotation.

Instructions for Use

Provided by the seller at quotation, and required before fitting.

Warranty Terms

Set by the seller at quotation.

The 1SCF-001 appears to be a complete prosthetic foot assembly: a carbon fibre keel with an integrated adapter, a shell and a sock. An energy storing foot is two engineered parts that must agree with each other. The keel is the working element, a composite plate that deflects as body weight rolls forward and straightens at the end of stance, returning part of the stored energy into push-off, with carbon used because it combines stiffness and low hysteresis so most of what goes in comes back. The shell gives the assembly its outline and takes the abrasion, but it is not a passive cover, since the keel deflects inside it and a stiffer shell restrains that deflection. Supplying them together means the interaction has been accounted for, which a pairing chosen on size alone cannot guarantee. The adapter built onto the plate removes an interface, saves build height and places alignment adjustment directly on the structural element. Stiffness category is where clinical selection happens, matched against weight and activity in both directions. Selection and fitting are the work of the prescribing prosthetist. Contents, keel construction, stiffness categories, ratings, adapter type and sizing are provided by the seller at quotation alongside UKCA or CE documentation. Medigear.uk lists the assembly for UK business buyers and can arrange supply, documentation and the provision of consumables. Enquire for a written quotation.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

It appears to be a complete prosthetic foot assembly comprising a carbon fibre keel with an integrated adapter, a foot shell and a sock.

That kit contains a shell, an insole and a sock but no keel. This assembly includes the working element, which makes it a foot rather than a finishing set.

It deflects as body weight rolls forward, storing strain energy, then straightens towards the end of stance and returns part of it into push-off.

Because composites combine high stiffness with low hysteresis, so a high proportion of the stored energy is returned rather than dissipating as heat.

Because the keel deflects inside the shell and a stiffer shell restrains it. A matched set has that interaction accounted for.

It can physically, but pairing a keel with a shell chosen on size alone may alter how the foot responds, and the change is not obvious on inspection.

It provides the connection to the components above, built onto the keel rather than bolted into a moulded recess, which removes an interface and saves build height.

A grading matched to user weight and activity. Too stiff and the keel barely deflects; too compliant and it feels unstable in late stance.

Against the manufacturer's stiffness chart, as a clinical judgement by the prosthetist using the user's weight and activity level.

Protecting the shell surface and damping noise from the keel moving inside it, which is more noticeable on a deflecting plate than a rigid foot.

A qualified prosthetist, who chooses size and stiffness, fits the assembly and sets alignment at the integrated adapter.