Adjustable Joint Implant for Objective Muscle Tension Evaluation
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Solution Overview
Problem
Existing joint replacement surgeries, such as reverse shoulder replacements, rely on subjective evaluation of muscle tension, leading to inefficiencies and post-operative complications like scapula fractures and limited motion due to inadequate tension adjustments in prosthetic devices.
Innovation Solution
A joint implant device with adjustable components and sensors that provide objective data on force and stability, allowing for precise and minimally invasive adjustments using a hand tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subjective evaluation of muscle tension is used in joint replacement surgery, then the surgical process is simple, but the measurement precision and reliability are insufficient leading to post-operative complications
Solution Approach 1:
The patent replaces the subjective mechanical evaluation method with an electronic sensor-based measurement system. Force sensors are integrated into the prosthetic device to objectively measure muscle tension and joint forces, eliminating reliance on surgeon subjectivity while providing quantifiable data for adjustment decisions.
Solution Approach 2:
The patent implements a feedback mechanism where sensors continuously monitor joint forces and muscle tension, transmitting this data to a data processing system. This feedback loop enables real-time assessment of prosthetic performance and guides adjustment decisions to optimize muscle tension and prevent complications.
2Adaptability or versatility
If fixed prosthetic devices are used, then the device complexity is reduced, but the adaptability to patient-specific conditions is insufficient
Solution Approach 1:
The patent transitions from fixed prosthetic components to dynamically adjustable elements. The prosthetic device incorporates movable supports and adjustable components that can be modified post-implantation based on sensor feedback, allowing the device to adapt to patient-specific conditions and optimize performance over time.
Solution Approach 2:
The patent enables parameter changes in the prosthetic device by incorporating adjustable components such as movable supports with gear mechanisms. These allow modification of geometric parameters like support angle and position, enabling customization of the prosthetic to match patient-specific anatomy and functional requirements.
3Manufacturing precision
If extensive surgery is performed for adjustment, then the manufacturing precision requirements are reduced, but the loss of time and patient recovery are increased
Solution Approach 1:
The patent incorporates sensor integration and adjustment mechanisms during the initial implantation procedure. By preparing the prosthetic device with built-in measurement capabilities and adjustment features beforehand, subsequent fine-tuning can be performed minimally invasively without requiring extensive re-surgery, thereby reducing patient recovery time.
Solution Approach 2:
The patent enables self-adjustment capabilities through the integrated sensor and adjustment mechanism system. The prosthetic device can be fine-tuned using simple external tools that interact with the built-in adjustment mechanisms, eliminating the need for complex surgical procedures and allowing for quick, minimally invasive modifications.
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 repeatable and accurate evaluation and adjustment of prosthetic devices, reducing discomfort and risk for patients by providing objective metrics and enabling continuous adjustment.
Implementation Method 1
The body can include a worm gear rotatably coupled with the first support. The body can include a second support movably coupled with the first support. The second support can include a worm wheel to engage with a portion of the worm gear.
Implementation Method 2
The sensor can detect a physical metric proximate the first end of the body
Data Source
AI summary
Systems and methods to evaluate a joint implant device are provided. The joint implant device can include a prosthesis body having a first end and a second end. The first end can couple with a first joint component and the second end can couple with a second joint component. The prosthesis body can include a first support. The prosthesis body can include a first gear rotatably coupled with the first support. The prosthesis body can include a second support movably coupled with the first support. The second support can include a second gear that can engage with a portion of the first gear. The prosthesis body can include a third support. The third support can movably couple with the second support. The third support can move relative to the first support with activation of the first gear.