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Wonderful Orthopaedic, Trauma & Prosthetics

Wonderful 3F32

Product Code: OTAP-PLAC-2918

A modular knee joint, fitted and aligned by a qualified prosthetist.

A knee joint is one part of a prosthesis built around one person. What it contributes depends on the mechanism, on how it is aligned, and on the settings a prosthetist establishes for that user. This component is 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 knee has to reconcile two requirements within a single stride. Under load through stance, it must resist flexion so the limb does not give way. Through swing, once the foot has left the ground, it must flex and extend freely enough for the shank to clear the floor and reach extension before the heel lands. The way a particular joint reconciles those two demands is what defines it.

Several approaches are in common use, and the mechanism on this component is established from the manufacturer's documentation. A single-axis joint pivots about one point and derives its stability from alignment and from resistance within the joint. A polycentric linkage places the effective centre of rotation away from any physical pivot and moves it through flexion, which serves stance stability and swing clearance through geometry. Resistance itself may be mechanical, pneumatic, hydraulic or microprocessor-controlled, and each behaves differently as walking speed changes.

Beyond the mechanism, three groups of figures govern whether a component can be used for a given patient. The first is the load rating and the indicated mobility grade, which determine whether the joint is appropriate for that person's weight and activity. The second is the build envelope, meaning component weight, structural height and system height, which the prosthetist works within when assembling a limb to the patient's measurements, and which matters most in knee disarticulation and long residual limb fittings. The third is the connection interface at each end, which determines compatibility with the sockets, adaptors, tubes and feet already specified for the build.

Water exposure rating sits alongside those, since it decides whether a user needs a second limb for wet environments, and adjustment ranges determine how far the prosthetist can tune the joint's behaviour to the individual.

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, resistance settings and suitability for a given patient are clinical decisions taken by that professional. The manufacturer, year, control mechanism, load rating, mobility grade, indicated amputation levels, build heights and connection types 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.

Suitability for a given patient follows the load rating and indicated mobility grade, both of which are confirmed against the manufacturer's instructions for use.

Knee disarticulation and long residual limb fittings depend on build height and the component envelope, since space below the socket is limited.

Limb builds using existing adaptors, tubes and feet depend on the proximal and distal connection types matching what has already been specified.

Users walking at varying speeds are served differently according to the control mechanism fitted, which is confirmed at quotation.

Wet environments depend on the water exposure rating and on the conditions of use stated by the manufacturer.

Clinics maintaining a component stock benefit from documentation held against each item, so a joint can be matched to a patient without re-establishing its specification.

A Component Specified to the Individual

The joint is one part of a limb assembled around one person, with alignment and settings established by the prosthetist for that user.

Mechanism Established Before Specification

Whether swing and stance control are mechanical, pneumatic, hydraulic or microprocessor-controlled is confirmed against the manufacturer's documentation.

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 a joint is specified into a build.

Build Envelope Confirmed for the Fitting

Component weight, structural height and system height are established so the prosthetist can work within them.

Connection Types Checked Against the Build

Proximal and distal interfaces are confirmed so the joint matches the adaptors, tubes and feet already specified.

Water Exposure Rating Stated

The rating and the manufacturer's conditions of use are established, which bears on whether a second limb is needed.

Adjustment Range Known in Advance

How far the prosthetist can tune the joint's behaviour is established before fitting.

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: 3F32

To be confirmed against the manufacturer's marking on the component.

Manufacturer and Year

Confirmed at quotation.

Control Mechanism

Mechanical, pneumatic, hydraulic or microprocessor-controlled, confirmed at quotation.

Joint Axis Configuration

Single-axis or polycentric construction, 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.

Proximal Connection

Type confirmed at quotation for compatibility with the socket and adaptors specified.

Distal Connection

Type and diameter confirmed at quotation for compatibility with the tube and foot specified.

Materials

Confirmed at quotation.

Water Exposure Rating

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

Adjustment Ranges

The settings available to the prosthetist, 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 3F32 is a modular prosthetic knee joint, supplied as a component to be built into a limb around one person. A knee has to resist flexion under load through stance so the limb does not give way, and flex and extend freely through swing so the foot clears the ground and reaches extension before heel strike, and the way a particular joint reconciles those two demands is what defines it. Three groups of figures then govern whether it suits a given patient: the load rating and indicated mobility grade, which determine appropriateness for that person's weight and activity; the build envelope of weight, structural height and system height, which the prosthetist works within; and the connection interfaces at each end, which determine compatibility with the sockets, adaptors, tubes and feet already specified. Selection, alignment, settings and suitability remain clinical decisions for the prescribing prosthetist. The manufacturer, control mechanism, load rating, mobility grade, indicated amputation levels, build heights and connection types 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. The mechanism, ratings and build figures are confirmed at quotation against the manufacturer's documentation.

Resist flexion under load through stance so the limb does not give way, and flex and extend freely through swing so the foot clears the ground and the knee reaches extension before heel strike.

Mechanical, pneumatic, hydraulic and microprocessor-controlled systems are all in use, and each responds differently as walking speed changes. The mechanism on this component is confirmed at quotation.

A single-axis joint pivots about one point, while a polycentric linkage places the effective centre of rotation away from any physical pivot and moves it through flexion.

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 against the manufacturer's instructions for use, alongside the indicated amputation levels.

Component weight, structural height and system height are confirmed at quotation, and they matter most in knee disarticulation and long residual limb fittings where space below the socket is limited.

Proximal and distal connection types are confirmed at quotation, since they determine compatibility with the adaptors, tubes and feet already specified for the build.

The water exposure rating is confirmed at quotation, along with the conditions of use stated in the instructions.

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

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