Stabilization Device for Intrafallopian Contraceptive Positioning
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Solution Overview
Problem
Existing transcervical gynecological procedures face challenges in maintaining the precise positioning of intrafallopian contraceptive devices within the fallopian tubes due to friction issues during device insertion and the need for additional stabilization, which can lead to difficulties in performing minimally invasive surgeries effectively.
Innovation Solution
A stabilization device is introduced that couples to both the intrafallopian contraceptive delivery device and the hysteroscope, maintaining a fixed longitudinal distance and providing a mechanism to prevent fluid backflow, allowing for easier handling and improved accuracy during procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distention valve has a tight opening to prevent fluid leakage, then fluid leakage is prevented, but friction increases making device positioning difficult
Solution Approach 1:
An introducer sheath is introduced as an intermediary component between the delivery catheter system and the distention valve. The sheath has a opening larger than the valve opening, allowing the delivery system to pass through without direct contact with the tight valve opening, thereby reducing friction while the sheath itself seals against the valve to prevent fluid leakage.
2Ease of operation
If the introducer sheath is inserted through the distention valve, then device insertion is facilitated, but fluid spray-back occurs onto the physician
Solution Approach 1:
The introducer sheath serves as a mediator that allows device insertion while its distal end seals against the distention valve to prevent fluid spray-back. The sheath creates a controlled pathway that contains pressurized fluid within the hysteroscope system.
Solution Approach 2:
The function of preventing fluid spray-back is extracted from the distention valve and assigned to the introducer sheath. The sheath's seal against the valve handles the fluid containment function, allowing the valve to focus on its primary sealing function.
3Productivity
If the delivery catheter system is positioned at the fallopian tube, then contraceptive implant delivery is enabled, but stabilization becomes difficult requiring additional assistance
Solution Approach 1:
The stabilization device combines multiple functions into a single integrated component: it couples to both the delivery catheter system and the hysteroscope, maintains fixed longitudinal distance between them, and provides mechanical stabilization. This merging eliminates the need for additional personnel to assist with stabilization.
4Ease of operation
If friction is reduced during device insertion, then device positioning becomes easier, but fluid sealing capability may be compromised
Solution Approach 1:
The introducer sheath acts as an intermediary that has a larger opening than the distention valve, allowing the delivery catheter to pass through with reduced friction. The sheath itself then seals against the valve to maintain fluid sealing capability, decoupling the friction and sealing functions.
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
The various embodiments of the present inventions provide stabilization devices and methods for use of the stabilization devices wit minimally invasive gynecological procedures such as methods of preventing pregnancy by inserting intrafallopian contraceptive devices into the fallopian tubes.