IUD Loading Device with Vacuum Positioning for Automated Knot Tying
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Solution Overview
Problem
Challenges arise during the manufacturing process of loading a threaded IUD into the distal end of an IUD insertion device, making it ready for deployment.
Innovation Solution
A loading device and method using a flexible member, such as a thread or suture, are employed to load an IUD into an IUD insertion device, utilizing a clamp with a bivalve configuration, a hypotube, and a vacuum applicator, with pneumatic controls for precise manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual loading methods are used to load IUD into insertion device, then device complexity is reduced, but productivity and manufacturing precision deteriorate
Solution Approach 1:
The loading device is divided into distinct functional modules: a clamp assembly for securing the IUD, a vacuum applicator for positioning, and a retainer mechanism for final placement. This segmentation allows each component to perform its specific function efficiently while enabling automated operation, thus improving productivity without requiring excessively complex integrated systems.
Solution Approach 2:
A flexible member or suture is introduced as an intermediary element to facilitate the loading process. The suture engages with the IUD and allows for controlled manipulation and positioning within the insertion device, enabling precise automated loading while maintaining manageable device complexity through the use of this intermediate facilitating element.
2Productivity
If automated knot tying system is implemented, then productivity improves, but device complexity and manufacturing precision requirements increase
Solution Approach 1:
The clamp assembly is designed to pre-position and secure the IUD in a predetermined orientation before the automated knot tying process begins. The vacuum applicator applies suction at specific locations to ensure the IUD is correctly positioned and stabilized, thereby establishing precise initial conditions that facilitate accurate automated knot tying and reduce precision requirements for subsequent operations.
Solution Approach 2:
The automated knot tying system replaces manual mechanical manipulation with automated mechanisms, including pneumatic controls and robotic positioning systems. This substitution increases productivity while the integrated feedback and control systems maintain manufacturing precision through automated adjustment and verification processes.
3Manufacturing precision
If vacuum applicator is used for IUD positioning, then manufacturing precision improves, but device complexity increases
Solution Approach 1:
The vacuum applicator is designed as a multi-functional component that not only positions the IUD with high precision but also secures it during the loading process and facilitates its release into the insertion device. By consolidating multiple functions into a single pneumatic component, the device complexity is managed while maintaining manufacturing precision.
Solution Approach 2:
The vacuum applicator utilizes pneumatic principles to achieve precise IUD positioning through controlled suction forces. The pneumatic system provides smooth, adjustable, and reversible positioning control, achieving high manufacturing precision while the modular pneumatic design keeps the overall device complexity manageable through standardized components and control circuits.
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 solution enables efficient and controlled loading of the IUD into the insertion device, ensuring proper deployment readiness and facilitating automated knot tying.
Implementation Method 1
a vacuum applicator, such as a vacuum pump or venturi pump, can be provided
Data Source
Figure 1A~1B
Figure 1C
Figure 1D
AI summary
Disclosed are devices and methods for loading an intrauterine device (IUD) with a thread or suture engaged therewith into an insertion device. The devices and methods are suitable for use with an automated knot typing system.