Medical Implant Propulsors for Precise Bone Placement

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Solution Overview

Problem

Existing medical implants rely solely on impact forces for positioning and placement, which can cause further damage or trauma and lack precision.

Innovation Solution

A medical implant with integrated self-contained propulsors that utilize rotational forces to position and secure itself within boney structures, featuring a chassis with propulsors that rotate in opposite directions to propel the implant longitudinally while harvesting and compressing bone tissue for precise placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If impact forces are used to position and place the implant, then the implant can be secured in position, but further damage or trauma to the boney structure may occur

Engineering Contradiction:

Improveimplant positioning reliabilityVSAvoiddamage to boney structure

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the traditional impact-based mechanical insertion system with a screw-based rotational insertion system. The implant incorporates threaded engagement surfaces that allow it to be screwed into the boney structure using rotational forces, eliminating the need for impact forces that cause trauma to the bone.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If impact forces are used to place the implant, then the implant can be secured, but the placement precision may be insufficient

Engineering Contradiction:

Improveimplant fixationVSAvoidimplant placement precision

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent substitutes impact-based placement with a controlled rotational screwing mechanism. The threaded engagement surfaces provide gradual, controlled advancement of the implant into the boney structure, allowing for precise positioning while maintaining secure fixation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Object-affected harmful factors

If self-contained propulsors with rotational mechanisms are integrated into the implant, then precise and trauma-free positioning is achieved, but the device complexity increases

Engineering Contradiction:

Improvetrauma to boney structureVSAvoidimplant structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the propulsor mechanism directly into the implant body, combining the functions of positioning and fixation into a single integrated device. The threaded engagement surfaces are incorporated as integral features of the implant chassis, eliminating the need for separate insertion tools or mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

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

Enables precise and trauma-free implantation by using rotational forces to position and secure the implant, promoting bone fusion and growth through tissue harvesting and compression.

Implementation Method 1

a clockwise auger flight positioned about a portion of the first longitudinal shaft

Methodology Applied

Scientific EffectScrew mechanism: Screw

Implementation Method 2

a rotation of the clockwise auger flight clears the main body

Methodology Applied

Scientific EffectRotational to linear motion conversion: Archimedes Screw

Data Source

PatentUS12569353B2System and method for a medical implant with integrated propulsors

Publication Date: 2026.03.10 LEE RANDALL F

AI summary

Disclosed are embodiments of medical implants containing an integrated propulsor system. Additionally, methods of insertion are also disclosed.