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Orthopaedic, Trauma & Prosthetics
Wonderful 3F29P-1

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Wonderful Orthopaedic, Trauma & Prosthetics

Wonderful 3F29P-1

Product Code: OTAP-PLAC-2921

A variant reference, matched to the connection a build requires.

Component references in prosthetics carry suffixes for a reason. A trailing digit most often marks a difference in how the component attaches at one end, which decides whether it drops into an existing specification. 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

A prosthetic component is only usable if it joins to what sits above and below it. The socket, adaptors, tube and foot in a specification each present a defined interface, and a knee joint has to meet those at both ends.

That is why manufacturers issue the same mechanism under several references. A joint may be offered with a pyramid at the top for adjustment through the adaptor, with a threaded connector, or with a lamination anchor for direct attachment into a socket, and at the bottom with tube clamps of differing diameters. The mechanism inside does not change between them; the attachment does. A reference carrying a trailing digit within a range most often reflects exactly that kind of difference, though the convention varies between manufacturers and cannot be assumed.

For a buyer working to an existing specification, this is the decisive question. A joint with the right mechanism, load rating and mobility grade is still the wrong component if it terminates in a 30 mm clamp when the build calls for 34 mm, and that is discovered at assembly rather than at order. Establishing the interface at both ends before purchase avoids that, and it also determines whether adaptors already held in stock can be used.

Beyond the interfaces, the ordinary specification questions apply. Load rating and indicated mobility grade decide whether the joint suits the individual. Component weight, structural height and system height define the envelope available between socket and foot, which is a limiting factor in knee disarticulation and long residual limb fittings. Maximum flexion determines whether kneeling and deep sitting are accommodated. Water exposure rating decides whether the user needs a second limb for wet environments.

The photograph of this component shows a linked-bar construction with a proximal housing. In a knee of that type the effective centre of rotation sits away from any physical pivot and moves through flexion, so stance stability and swing clearance are both served by the geometry of the linkage, with any pneumatic or hydraulic unit adding resistance that varies with speed. Which arrangement applies here is established from the manufacturer's documentation.

This is a component rather than a finished prosthesis. It is fitted, aligned and adjusted by a qualified prosthetist as part of a limb assembled around the individual, and selection, alignment, settings and suitability for a given patient are clinical decisions taken by that professional. The manufacturer, variant designation, connection types, linkage construction, control type, load rating, mobility grade, indicated amputation levels and build heights 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.

Transfemoral prosthetic fitting is the primary application, with the joint supplied as a component for a prosthetist to align and adjust within a complete limb.

Builds working to an existing specification depend on the proximal and distal interfaces matching the adaptors, tube and foot already chosen.

Clinics holding adaptor stock benefit from establishing the connection types before order, since existing stock may or may not be usable.

Knee disarticulation and long residual limb fittings are where linked-bar geometry is commonly specified, since space below the socket is limited.

Suitability for a given patient follows the load rating and indicated mobility grade, both taken from the manufacturer's instructions for use.

Stance stability and swing clearance are both served by the linkage geometry, with the specific behaviour established from the manufacturer's documentation.

Users walking at varying speeds are served differently according to whether a pneumatic or hydraulic unit is fitted alongside the linkage.

The Variant Difference Established First

Where a component is offered under a variant reference, the difference from the base reference is settled in writing before order.

Interfaces Confirmed at Both Ends

Proximal and distal connection types are established so the joint meets the socket, adaptors, tube and foot already specified.

Compatibility Settled Before Assembly

Checking the interface at order avoids discovering a clamp diameter mismatch when the limb is being built.

Existing Adaptor Stock Assessed

Knowing the connection types shows whether adaptors already held can be used with this component.

Geometry Serving Both Gait Phases

In a linked-bar knee the effective centre of rotation moves through flexion, serving stance stability and swing clearance together.

Suited to Limited Build Height

Linked-bar geometry is commonly specified where space below the socket is short.

Load Rating Taken From the Instructions for Use

The maximum patient weight is established from the manufacturer's documentation rather than from any listing.

Mobility Grade Matched to the User

The indicated mobility grade and amputation levels are confirmed before the joint is specified into a build.

Documentation Requested With Supply

UKCA or CE marking documentation, the declaration of conformity and instructions for use are requested from the seller at quotation.

Clinical Decisions Left With the Clinician

Selection, alignment, settings and suitability remain the responsibility of the prescribing prosthetist.

Supply and Documentation Arranged

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

Modular Prosthetic Knee Joint

A component for above-knee prosthetic fitting, assembled into a limb by a prosthetist.

Item Reference: 3F29P-1

A variant reference within a range, to be confirmed against the manufacturer's marking.

Variant Designation

What the suffix denotes, and the difference from the base reference, confirmed at quotation.

Proximal Connection

Pyramid, threaded or lamination anchor attachment, confirmed at quotation.

Distal Connection

Type and clamp diameter confirmed at quotation.

Linkage Construction

Number of bars and pivot axes confirmed at quotation.

Swing and Stance Phase Control

Mechanical, pneumatic or hydraulic, confirmed at quotation.

Maximum Patient Weight

Confirmed at quotation against the manufacturer's instructions for use.

Mobility Grade and Indicated Amputation Levels

Confirmed at quotation against the manufacturer's instructions for use.

Maximum Knee Flexion

Confirmed at quotation.

Component Weight

Confirmed at quotation.

Structural Height and System Height

Confirmed at quotation for limb build calculations.

Materials and Finish

Confirmed at quotation.

Pivot Bearings

Bearing type and replacement pin availability confirmed at quotation.

Water Exposure Rating

Confirmed at quotation, with conditions of use taken from the instructions.

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 3F29P-1 is a modular prosthetic knee joint offered as a variant reference within a range, supplied as a component to be built into a limb around one person. A joint has to meet defined interfaces at both ends, and manufacturers issue the same mechanism under several references precisely because the attachment differs: a pyramid, a threaded connector or a lamination anchor at the top, and tube clamps of differing diameters at the bottom. For a buyer working to an existing specification that is the decisive question, since a component with the right mechanism and ratings is still unusable if it terminates in the wrong clamp diameter, and it is found at assembly rather than at order. Beyond the interfaces, load rating and mobility grade decide suitability for the individual, build heights define the envelope between socket and foot, and the linked-bar geometry serves stance stability and swing clearance together. Selection, alignment, settings and suitability remain clinical decisions for the prescribing prosthetist. The manufacturer, variant designation, connection types, load rating, mobility grade and build heights are provided by the seller at quotation, alongside UKCA or CE documentation and instructions for use. Medigear.uk lists the joint for UK business buyers and can arrange supply, documentation and the provision of spares and consumables. Enquire for a written quotation.

FAQ

Frequently Asked Questions

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

It is a modular prosthetic knee joint supplied as a component for a prosthetist to fit within an above-knee prosthesis, offered as a variant reference within a range. The construction, ratings and connections are confirmed at quotation.

Suffixes within a component range most often mark a difference in connection type, though conventions vary between manufacturers. What it denotes here is established in writing before order.

Because the same joint is supplied with different attachments, such as pyramid, threaded or lamination anchor at the top and tube clamps of differing diameters at the bottom.

A joint with the right mechanism and ratings is still unusable if it terminates in a clamp diameter the build does not call for, and that is found at assembly.

Both are confirmed at quotation, since they determine compatibility with the socket, adaptors, tube and foot already specified.

Confirmed at quotation against the manufacturer's instructions for use, which is the only source that should be relied on for a load-bearing component.

Confirmed at quotation, alongside the amputation levels the manufacturer states it is intended for.

Component weight, structural height and system height are confirmed at quotation, and matter particularly where space below the socket is limited.

The effective centre of rotation sits away from any physical pivot and moves through flexion, so stance stability and swing clearance are served by the geometry.

The water exposure rating is confirmed at quotation, along with the manufacturer's stated conditions of use.

A qualified prosthetist, who sets alignment and any adjustable settings to the individual as part of a complete prosthesis.