Knee Rehabilitation Machine with Multi-Position Synchronous Force

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Solution Overview

Problem

Current knee rehabilitation technologies fail to effectively correct knee joint instability and prevent recurring knee arthrosis, often causing discomfort and requiring repeated medical interventions with significant financial and mental stress.

Innovation Solution

A knee rehabilitation machine with multi-position synchronous force application that simulates traditional Chinese medicine techniques by using suspension, pulling, twisting, and vibration with controlled force, angle, and distance to adjust the relationship between the femur and tibia, leveraging the body's own memory to restore the knee joint to its natural state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional knee rehabilitation methods (medication and surgery) are used, then inflammation is eliminated and pain is relieved, but knee instability is not corrected and the disease recurs

Engineering Contradiction:
Improveknee joint stabilityVSAvoiddisease recurrence
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The rehabilitation machine applies corrective forces to the knee joint in advance to adjust the spatial relationship between the femur and tibia, preventing knee instability and potential recurrence of knee arthrosis before they occur. The suspension, pulling, twisting, and vibration actions are performed proactively to restore proper joint alignment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The machine employs dynamic multi-position force application with adjustable suspension heights, pulling forces, and vibration frequencies to adapt to different stages of rehabilitation and individual patient needs, enabling comprehensive correction of knee joint instability through controlled dynamic movements.

Inventive Principle:
Principle #15Dynamics

2Reliability

If knee replacement surgery is performed, then instability is corrected and pain is relieved, but the patient suffers great pain, incurs high costs, and experiences surgical sequelae

Engineering Contradiction:
Improveknee joint stabilityVSAvoidsurgical sequelae
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The rehabilitation machine enables the patient's own body to correct knee joint instability through self-weight suspension and controlled movement exercises, eliminating the need for surgical intervention. The patient performs rehabilitation exercises that leverage their own body mechanics to restore proper joint alignment and function.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The machine replaces the mechanical intervention of surgery with a non-invasive mechanical rehabilitation system that uses suspension, pulling, and vibration forces to achieve the same stabilizing effect without incisions, implants, or associated surgical risks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Object-affected harmful factors

If repeated medication is used, then inflammation is controlled, but damage to body organs is inevitable

Engineering Contradiction:
ImproveinflammationVSAvoidorgan damage
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The rehabilitation machine replaces pharmacological treatment with a mechanical therapy approach, using controlled suspension, pulling, and vibration forces to address knee joint instability and prevent arthrosis progression without exposing the patient to medication-related organ damage.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The machine effectively corrects knee joint instability, eliminates discomfort, and prevents the occurrence of knee arthrosis by applying synchronized forces, promoting comprehensive rehabilitation and reducing the need for repeated medical treatments.

Implementation Method 1

a vibration unit, a pulling unit, and a transmission mechanism of a pressing unit are arranged in the vertical box; the vibration unit in the vertical box drives a fork to swing through a reduction motor; a roller coaxially arranged in the suspension box is fixed on an upper end of the fork; the roller is capable of swinging synchronously with a swing of the fork

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

a pressing unit swing lever mechanism is arranged in the bottom box; the transmission structure of the pressing unit in the vertical box is a swing lever mechanism that uses a swing of the roller to drive the pressing unit in the bottom box; two pressing vertical rods symmetrically arranged on both sides of the calf of the patient are capable of swinging, and the two pressing vertical rods snap together to connect to a magic buckle with a shape similar to a knee joint, thereby clasping the knee joint of the patient

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

the pulling unit in the vertical box is driven by another reduction motor to pull two traction belt rods at the same time to pull the calf of the patient axially

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 4

a fixed shaft roller is coaxially arranged at an outer end of the suspension box, and the fixed shaft roller is arranged with a fixing strap configured to fix and bind a thigh of the patient

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11654072B2Knee rehabilitation machine with multi-position synchronous force application
Publication Date: 2023.05.23 ZHONGJIAN ANHUA (TIANJIN) HEALTH TECHNOLOGY CO LTD
  • US11654072B2 patent drawing
  • US11654072B2 patent drawing
  • US11654072B2 patent drawing

AI summary

A knee rehabilitation machine with multi-position synchronous force application includes a bottom box, a vertical box, and a suspension box. The vertical box is vertically arranged at an end of the bottom box, and an upper end of the vertical box is horizontally fixed with the suspension box. A pressing unit swing lever mechanism is arranged in the bottom box, and a vibration unit, a pulling unit, and a transmission mechanism of a pressing unit are arranged in the vertical box.