Multi-Modal Bone Adjustment Implant with Integrated Drive Mechanism
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Solution Overview
Problem
Conventional implantable bone adjustment systems are limited in the extent and modality of adjustment, often being complex, costly, and ineffective, requiring multiple adjustments or modalities for distraction and rotation, which can increase procedural time and complications.
Innovation Solution
The development of biocompatible implants with a housing and a drive mechanism that enables both translation and rotation of adjustment rods, allowing for multi-modal adjustment, including the use of distinct drivers, helical grooves, and retractable tabs to facilitate simultaneous translation and rotation, and the integration of magnetic and electronic actuators for external control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional implantable bone adjustment systems are used for distraction and rotation, then bone adjustment is achieved, but the system requires multiple adjustments and modalities increasing procedural time and complexity
Solution Approach 1:
The adjustment rod is designed to perform multiple functions (distraction and rotation) through a single integrated mechanism. The rod can translate axially for distraction and rotate about the primary axis for rotational adjustment, eliminating the need for separate devices or modalities for each function.
Solution Approach 2:
The patent combines distraction and rotation capabilities into a single adjustment rod and housing structure. The drive mechanism integrates both translational and rotational drivers within one housing, merging what were previously separate adjustment systems into a unified device.
2Reliability
If conventional implantable bone adjustment systems are used, then bone adjustment is achieved, but procedural time and complications increase
Solution Approach 1:
The adjustment rod is designed with dynamic capabilities to perform both distraction and rotation during a single procedural step. The system allows for real-time adjustment of both parameters through external control, reducing the need for multiple surgical interventions and minimizing procedural time.
3Adaptability or versatility
If multiple devices are used for distraction and rotation, then comprehensive bone adjustment is achieved, but device complexity and cost increase
Solution Approach 1:
The single implant device provides universal adjustment capabilities for both distraction and rotation. The adjustment rod can independently perform axial translation for distraction and rotational movement, replacing the need for multiple specialized devices.
Solution Approach 2:
The patent merges multiple adjustment functions into a single integrated implant system. The housing contains both translational and rotational drivers that work together or independently to achieve comprehensive bone adjustment without requiring separate devices.
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 multi-modal adjustment implants reduce procedural time and complications, enhance adaptability, and minimize health risks by allowing a single implant to perform functions previously requiring multiple devices, providing an efficient and simplified mechanism for bone adjustment.
Implementation Method 1
the first adjustment rod includes at least one helical groove, and the housing includes a rotation control lug for engaging the at least one helical groove, such that for at least a portion of an axial extent of translation of the first adjustment rod, the rotation control lug causes the first adjustment rod to rotate about the primary axis
Data Source
AI summary
Various implementations include implants and related methods for moving bone. Certain implementations include an implant for moving bone in a patient's body, the implant including: an implantable biocompatible housing having a first cavity; a first adjustment rod at least partially contained within the first cavity; and a drive mechanism configured to drive the first adjustment rod to enable both translation axially relative to the housing and rotation about a primary axis of the housing.