Interferential Therapy Machines
KNEEFLEX
KNEEFLEX® is an anatomical-design continuous passive motion (CPM) machine for knee and hip rehabilitation with remote-controlled operation, 10-step variable speed (50–110 cycles/minute), treatment duration up to 24 hours with real-time clock, force reversal (10–30 kg in 10 steps) and daily progressive angle increase (2°, 3° or 5° per day). With a range of motion from -10° extension to 120° flexion in 1° increments, 10-patient progressive memory, patient-controlled comfort zone return key and universal left/right design, it is the full-featured CPM in the HMS range — designed for extended post-operative rehabilitation sessions up to 24 hours.

-10° to 120° Range of Motion
10-Step Variable Speed
Up to 24-Hour Treatment
Remote-Controlled Operation
Force Reversal (10–30 kg)
IEC 60601-1 Certified
Advanced CPM Control with Remote Operation
KNEEFLEX® provides the most comprehensive CPM control in the HMS range — remote operation, 10-step speed, 24-hour treatment, force reversal, patient comfort zone control and daily progressive angle — with the same 1° accuracy and noiseless drive as the KNEEFLEX® Es.
10-Step Variable Speed — 50 to 110 Cycles/Minute
Speed is adjustable across 10 steps from 50 to 110 cycles per minute, providing finer motion speed graduation than the KNEEFLEX® Es’s three fixed speed settings. This 10-step range allows clinicians to precisely match CPM speed to patient tolerance at each stage of recovery, from very slow early post-operative motion to faster rehabilitation-phase cycling.
24-Hour Treatment with Real-Time Clock
Treatment duration extends from 5 minutes to 24 hours — eight times longer than the KNEEFLEX® Es’s 3-hour maximum. A real-time clock in 24-hour format tracks treatment scheduling. This extended runtime supports overnight and multi-hour CPM protocols commonly prescribed in early post-operative knee rehabilitation programmes.
Force Reversal — 10–30 kg in 10 Steps
Force reversal automatically changes the direction of motion when the resistance against the carriage exceeds the set force threshold. Adjustable from 10 to 30 kg in 10 steps, this safety feature protects the joint from excessive force if the patient involuntarily resists motion due to muscle spasm or guarding during CPM sessions.
Remote-Controlled Operation with Comfort Zone
All CPM parameters are controlled via a remote handset — allowing bedside adjustment of ROM, speed, pause, treatment time and progressive settings without accessing the base unit. A patient-operated return key lets the patient set their own comfort zone boundary, giving them direct input into the maximum flexion angle during self-managed CPM sessions.
Daily Progressive Angle — 2°, 3° or 5° Per Day
Progressive angle automatically increases the programmed flexion angle by 2°, 3° or 5° over the total treatment time per day. Up to 10 progressive memory slots store individual patient settings for quick recall. This daily progression system suits multi-day inpatient CPM protocols where ROM is incrementally advanced each treatment day.
14.75 kg with Universal Design & Wide Voltage
At 14.75 kg and 85 × 29.5 × 25 cm with universal left/right design and easy adult-to-pediatric conversion without adapter pieces. Calf length range: 32–54 cm; thigh: 34–50 cm. ROM: -10° to 120° flexion with 1° accuracy via contactless magnetic sensor. Noiseless DC motor with maintenance-free stainless steel ball screw. Ultra-wide 28 cm carriage. 160 kg max patient weight. Wide mains input (90–270V, 50/60 Hz). 4.5 m power cord. Certified to IEC 60601-1 (Class I, Type B). Manufactured by HMS Medical Systems.
Engineered for Performance
Key features of KNEEFLEX from multi-modality output and channel independence to display, safety and build quality.
- Universal left / right design
- Total noiseless smooth operation
- Ultra-wide carriage 28cm (11″) from the center of the carriage
- Sturdy DC motor for smooth operation
- Universal input internal power supply.
- Convenient 4.5m long power cord
- Light weight at only 14.75 Kg
- Easy conversion from adult to pediatric (no adapter pieces needed)
- 1° Accuracy, contact less magnetic sensor for angle detection
- Maintenance free stainless steel plated ball screw
- Model : KNEEFLEX
- Design Type : Anatomical
- Operation Mode : Electrical
- Target Body Part : Knee, HIP
- Range of Motion – -10° extension – 120° flexion (1° settings)
- Pauses – 0 – 99 seconds (extension and flexion)
- Speed – 50 – 110 / minute in 10 steps
- Treatment Time – 5 min – 24 Hrs – Real time clock in 24 Hrs format
- Length Range:
Calf 32 – 54 cm
Thigh 34 – 50cm - Force Reversal – 10-30 kgs in 10 steps
The benefits of CPM for Healing Cartilage
- Enhanced nutrition and metabolic activity
- Accelerated healing of articular tissues
- Regeneration of cartilage
The benefits of CPM for healing tendons
- Restoration of the tendon’s gliding surface
- Greater mean breaking strength of the tendon
- Enhanced intrinsic healing through synovial diffusion
- Prevention of adhesion formation
- Helps decrease complications such as joint stiffness and adhesions
- Reduces the length of post-operative hospitalisation
- Builds patient confidence, well-being and independence
- Increase joint mobility and range of motion
- Progressive range of motion eliminates time consuming adjustments by automatically increasing the programmed flexion angle by 2°, 3° & 5° for the total treatment time per day
- Patient can set his comfort zone by pressing the return key
- Up to 10 progressive memory
- Real time clock
- Mains Voltage – 90 – 270V / 50 or 60 Hz
- Safety Class – Class I, Type B (IEC 60601 -1)
- Dimensions – L x B x H – 85 x 29.5 x 25 cms
- Weight – 14.75 Kgs
- Max Patient Weight – 160 kg
Accessories for KNEEFLEX
Genuine accessories designed to ensure optimal performance. hygiene and durability.
Product Enquiry
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Model Comparison of Continuous Passive Motion Equipments
| PARAMETERS | KNEEFLEX® | KNEEFLEX-Es® |
|---|---|---|
| Range of motion | -10° to 120° flexion | -10° to 120° flexion |
| Pauses | 0 – 99 secs | 0 – 99 secs |
| Speed | 50 – 110 / min in 10 steps | 50 – 110 / min in 10 steps |
| Treatment time | 5min – 24hrs. Real time clock in 24 Hrs format | 5min – 3hrs. |
| Length range | Calf 32 – 54 cm Thigh 34 – 50 cm | Calf 40 – 62 cm Thigh 28 – 46 cm |
| Force reversal | 10 – 30 kg in 10 steps | 10 – 30 kg in 10 steps |
| Operation | Remote function | Base unit |
| Progressive memory | 10 | – |
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