Mandibular Bone Growth Device Using Pulsed Electromagnetic Fields

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Solution Overview

Problem

Conventional methods for treating under-developed lower jaw and temporomandibular anomalies often require invasive surgery and large, prohibitive electrostatic fields, necessitating a non-invasive and low-energy solution for mandibular bone growth stimulation.

Innovation Solution

A non-invasive device generating a low-energy pulsed electromagnetic field using left and right head modules, a headband, transmitter circuits, electrodes, and antenna rods to deliver PEMF therapy externally to the mandible, with a programmable controller regulating current, frequency, and duration for bone growth stimulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional electrode implants are used to stimulate bone growth, then bone repair can be stimulated, but surgical risks and invasiveness increase

Engineering Contradiction:
Improvebone repair effectivenessVSAvoidsurgical risks
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical implantation system (surgical electrode insertion) with an electromagnetic field generation system. The头戴式 device generates pulsed electromagnetic fields that penetrate tissue non-invasively to stimulate bone growth, eliminating the need for surgical implantation while maintaining therapeutic effectiveness.

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

Solution Approach 2:

The patent introduces electromagnetic fields as an intermediary between the external device and the bone tissue. Instead of direct physical contact through implanted electrodes, the electromagnetic field serves as a mediator to deliver stimulation energy through the skin and soft tissue to the underlying bone, reducing direct tissue disruption.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If capacitively-generated electrostatic fields are used for treatment, then some beneficial results are achieved, but the large field size becomes prohibitive

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidfield size
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent changes the fundamental parameter of the electromagnetic field from static electrostatic fields to pulsed electromagnetic fields. This parameter change allows for more concentrated and localized field delivery to the target bone region, reducing the overall field size required while maintaining or improving treatment effectiveness.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs periodic pulsed electromagnetic fields instead of continuous static fields. The pulsed nature allows for intermittent energy delivery with rest periods, enabling more efficient energy utilization and reducing the spatial extent of the field required to achieve therapeutic effects.

Inventive Principle:
Principle #19Periodic action

3Object-affected harmful factors

If non-invasive PEMF therapy is used, then surgical risks are eliminated, but the energy efficiency and field concentration need optimization

Engineering Contradiction:
Improvesurgical risksVSAvoidenergy efficiency
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by designing the头戴式 device to concentrate electromagnetic field energy specifically at the target bone region. The device structure and antenna configuration are optimized to produce localized field patterns that deliver higher energy density to the treatment site while minimizing energy dissipation in surrounding tissues, thereby improving energy efficiency.

Inventive Principle:
Principle #3Local quality

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 device provides a safe and effective non-invasive means to enhance mandibular bone growth, treating underdeveloped jaws and anomalies without surgery, by inducing microcurrents for bone remodeling and growth, with adjustable settings for optimal treatment outcomes.

Implementation Method 1

Pulsed electromagnetic field (PEMF) therapy uses alternating electromagnetic fields to induce a voltage in bone

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

left and right transmitter antenna rods fixed to the left and right head modules for receiving signals transmitted through the electrodes

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS11957908B1Device for enhancing mandibular bone growth
Publication Date: 2024.04.16 KING SAUD UNIVERSITY
  • US11957908B1 patent drawing
  • US11957908B1 patent drawing
  • US11957908B1 patent drawing

AI summary

A device for enhancing mandibular bone growth can include left and right head modules, a headband linking the left and right head modules and supporting the head modules, at least one transmitter circuit fixed to respective left and right head modules, left and right electrodes configured for receiving the transmitted electromagnetic field, and left and right transmitter antenna rods fixed to the left and right electrodes for receiving signals from the transmitter. The transmitter circuit can include a power supply, a driver, and at least one transmitter capable of transmitting an electromagnetic field for transmission to the patient's mandible.