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Comfort-Brake Knee (pneumatic system)

Item #: 3R92

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Suggested HCPCS Coding: L5822 + L5845 + L5850
Restrictions to Coding and/or Coverage may apply

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Same brake mechanism as the 3R90. The lower joint section is formed as a pneumatic cylinder. To control the swing phase, flexion and swing phase damping of the progressively acting dual-chamber pneumatic system are individually adjustable.

Extension and flexion damping of the integrated dual-chamber pneumatics in the 3R92 can be regulated with a screwdriver in the accustomed manner.

When fitting users with mobility grade 1, the following applies: these knee joints with friction brake are contraindicated for unsure patients who are unable to systematically use the braking mechanism during the gait cycle i.e. to lock the knee joint at heel contact and unlock it when the forefoot is loaded.

Scope of Delivery

3R92 Comfort-Brake Knee
2R77 Tube-Adap,Long-34mm-Steel


Activity Level K3
Maximum Body Weight 275 lbs (125 kg)
Material Aluminum
Proximal Connection Pyramid Adapter
Distal Connection Tube Clamp
Maximum Knee Flexion Angle 135 degrees
Knee Center to Proximal Connection 40 mm
Product Weight 895 g


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Fabrication Order Form for Transfemoral or Knee Disarticulation

Order Form: (EN)

Publish date: May 1, 2015

PDF Document (13084BTransfemoralProsthesisOrderForm.pdf | 60 KB)

LLP Prosthetist Documentation

Reimbursement: (EN)

Publish date: Apr 21, 2021

PDF Document (LLP_Prosthetist_Documentation_040921.pdf | 897 KB)

LLP Physician Documentation Guide

Reimbursement: (EN)

Publish date: Apr 21, 2021

PDF Document (LLP_PhysicianGuide_040921.pdf | 494 KB)

3R90 / 3R92 Brochure

Product Information: 646D338 (EN)

Publish date: Jul 1, 2016

PDF Document (646D338-en_Master-03-1607w.pdf | 396 KB)

3R90 / 3R92 Instructions for Use

Instructions for Use: 647G475 (EN/DE/FR/IT/ES/PT/SV/NL/DA/PL/HU/CS/RO/HR/EL/RU/TR/ZH/JA)

Publish date: Jul 13, 2020

PDF Document (647G475-all_INT-21-2101w(4341734)_en.pdf | 2 MB)