Clinicians
Mercury
Activity Level 3 4 Impact Level
A robust, compact, single axis prosthetic knee for activity level 3 & 4 users. The Mercury’s tough frame and hydraulic swing and stance control meet the demands of the most active lifestyles.
Features
Tough carbon fiber frame
Long life needle roller bearings
Reinforced hydraulic unit
Variable cadence
Mode switch for cycling
Durable urethane kneeler pad
Compact design
Product Description
ndolite Mercury Prosthetic Knee Joint
Lightweight Hydraulic Knee for Smooth, Controlled & Confident Walking
The Endolite Mercury Prosthetic Knee Joint is a compact hydraulic prosthetic knee designed to provide smooth swing phase control, reliable stance stability, and a more natural walking pattern for above-knee (AK) and transfemoral amputees. Engineered by Endolite, the Mercury knee is known for its lightweight construction, durability, and clinically proven hydraulic performance, making it a popular choice for everyday prosthetic mobility.
At the heart of the Endolite Mercury is a single-axis hydraulic system that delivers progressive resistance during swing phase. This allows for smoother knee flexion and extension, improved toe clearance, and better cadence control compared to basic mechanical knees. The hydraulic damping adapts well to changes in walking speed, helping users walk more comfortably with reduced gait deviations and less compensatory movement.
During stance phase, the Mercury knee provides dependable stability through controlled resistance to knee flexion under load. This enhances confidence during weight bearing, initial contact, and level-ground walking. While it does not rely on electronics or microprocessors, its hydraulic behavior offers a noticeable upgrade in walking smoothness and energy efficiency over non-hydraulic knee joints.
The Endolite Mercury Prosthetic Knee Joint is especially suitable for low to moderate activity users who want a balance between safety, comfort, and affordability. It is often prescribed for daily community walking, long-term definitive prostheses, or for users transitioning from basic mechanical knees to more advanced systems. Its compact and lightweight design also makes it easier to don, doff, and manage during daily use.
Built for real-world durability, the Mercury knee performs reliably across common environments such as indoor flooring, outdoor pavements, and mild uneven terrain. Its compatibility with a wide range of prosthetic feet allows clinicians to customize the overall prosthetic system according to the user’s weight, activity level, and lifestyle needs.
At Credence Prosthetic India, the Endolite Mercury Prosthetic Knee Joint is fitted using a comprehensive clinical protocol that includes functional assessment, precise alignment, dynamic gait evaluation, and individualized hydraulic adjustment. Proper tuning and patient training are essential to maximize the benefits of a hydraulic knee, and Credence’s experienced prosthetists ensure each user receives a personalized setup for safe and comfortable long-term use.
As one of India’s leading advanced prosthetic clinics, Credence Prosthetic India offers a wide range of prosthetic knee solutions—from mechanical and hydraulic knees to advanced microprocessor-controlled systems. With a strong focus on evidence-based fitting, rehabilitation-driven outcomes, and patient education, Credence helps users of the Endolite Mercury Prosthetic Knee Joint achieve smoother gait, improved confidence, and greater independence in daily life.
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