Sphincter Assist Device Non-Linear Force Profile
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional sphincter assist devices provide linear or non-linear force profiles that are not easily tailored to individual sphincters, leading to adverse side effects such as difficulty with bodily functions and migration away from the desired placement site, which can result in reduced functionality.
Innovation Solution
A sphincter assist device comprising a plurality of interconnected links forming a ring with a latch cam and snap arms, which exert a positive and negative non-linear force profile during transitions between open and closed configurations, allowing for customizable force profiles and improved sphincter function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional linear or non-linear force profiles are used in sphincter assist devices, then the device structure is simple, but the device cannot be easily tailored to individual sphincters leading to adverse side effects and migration
Solution Approach 1:
The device divides the force profile control into discrete segments through modular links. Each link contains independent snap arms and springs that can be selectively engaged or disengaged, allowing the force profile to be customized by configuring which links are active. This segmentation enables tailoring the force characteristics without requiring complete redesign of the entire device structure.
Solution Approach 2:
The device employs dynamic engagement mechanisms where snap arms can transition between engaged and disengaged states with the latch cam. This dynamic configuration allows the force profile to be adjusted based on individual sphincter requirements. The springs provide variable force characteristics that can be tuned by changing the engagement geometry, enabling customization while maintaining a relatively simple base structure.
2Reliability
If traditional force profiles are used, then manufacturing is simpler, but adverse side effects occur such as difficulty with bodily functions and migration away from placement site
Solution Approach 1:
The device applies different force characteristics at different locations along the ring structure. Each link can be configured with specific spring rates and snap arm geometries to create localized force variations. This allows the force profile to be optimized for specific sphincter regions while maintaining standard manufacturing processes for each individual link component.
Solution Approach 2:
The device enables parameter customization through selection of different spring constants, snap arm lengths, and engagement angles. These parameter variations allow tailoring the force profile to match individual sphincter characteristics without fundamentally changing the manufacturing approach. Standard components with varying parameters can be produced using conventional manufacturing methods.
3Ease of operation
If traditional linear force profiles are applied, then the device structure is straightforward, but transition between open and closed configurations causes adverse effects and migration
Solution Approach 1:
The device creates a periodic force profile during the transition cycle through the interaction of the latch cam with multiple snap arms arranged around the ring. As the cam rotates, it sequentially engages and disengages different snap arms, creating a controlled periodic force pattern that smooths the transition between open and closed states. This periodic action prevents abrupt force changes that could cause migration or discomfort.
Solution Approach 2:
The latch cam acts as an intermediary element that mediates the force transmission between the actuation mechanism and the sphincter. By introducing this intermediate component with its specific cam profile geometry, the force delivery is smoothed and controlled during transitions. The cam profile can be designed to create gradual force changes, improving ease of operation without requiring complex control systems.
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 customizable non-linear force profile that facilitates easier transition between closed and open positions, reducing adverse side effects and maintaining sphincter functionality, while minimizing migration and ensuring proper placement.
Implementation Method 1
The first set of snap arms, in combination with the first set of side beams, exert a positive non-linear force profile on the cam, and thus, define a non-linear force profile during the transition of the sphincter assist device between the open and closed configurations
Data Source
AI summary
A sphincter assist device includes a plurality of interconnected and adjacent links which define a ring. Each link includes a body section and a latch cam. The body section includes a first set of side beams and a first set of snap arms. The latch cam includes a post extending from the body section and a cam disposed at an end portion of the post. The cam is engagable with the first set of snap arms of an adjacent link. Translation of the cam displaces the first set of snap arms and the first set of side beams to transition the sphincter assist device between open and closed configurations. The first set of snap arms, in combination with the first set of side beams, exert a positive non-linear force profile on the cam, thus defining a non-linear force profile of the sphincter assist device between the open and closed configurations.