Tynax ~ Patent Library

Patent for Sale:

Individually-controlled Passive Active and Resistive (IPAR) Rehabilitation Device    

A portable, cost effective device to facilitate the restoration of strength and range of motion in the lower extremity.


With the many changes in healthcare, providers must become more efficient and effective in their approach. The future is about outcome measures. IPAR is a portable device that provides passive, active and resistive motion that is controlled by the user. The IPAR has range stops to limit range if indicated by the healthcare professional. With this device, the patient becomes more empowered as they can follow set protocols and see measurable progress on their own. The protocols progress the patient from passive exercise to strength training. With this device, healthcare costs can be reduced as therapy visits can be reduced.

Primary Application of the Technology

Healthcare Industry

The Problem Solved by the Technology

It improves the efficiency of the acute rehabilitation of the lower extremity. It can reduce cost and improve outcomes as the number of visits from the therapist can be reduced.

How the Technology Solves the Problem

Inexpensive, portable, simple to use, and the patient controls the device. Measurable progress can be seen by the user.

Competitive Advantage

There are no other products that address this problem. Continuous passive motion devices (CPMs) have been out of favor for years as they were ineffective in long term studies however they only addressed passive range of motion. CPMs were expensive and difficult for patients to manage in the home. The IPAR device is lightweight and simple to use. The device is highly portable and does not require electricity like the CPM units.

Frequently Asked Questions

What injuries can be treated using this device?

While originally designed for the acute rehab of a total knee replacement, this device can be an effective tool for any knee procedure as it allows the healthcare professional to customize the protocol based on the orthopedic restrictions

How long would a patient use the device?
typically this device is ideal for the first 4 weeks post injury or surgery

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 482: Exercise Devices

This class provides for apparatus intended to be operated by a human user for the purpose of: (a) facilitating the conditioning or developing of a muscle of the user by repetitive or continuous activity of the user or, (b) participating in a track, field, gymnastic, or athletic activity, unless by analogy of structure or by other function the apparatus is classified elsewhere.

Class 601: Surgery: Kinesitherapy