Pressure-Regulated Hysterosalpingography Device for Tubal Occlusion Safety

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Solution Overview

Problem

Current methods for confirming fallopian tube occlusion during hysterosalpingography lack effective pressure regulation, risking expulsion or disruption of occlusions and providing inadequate assurance of successful sterilization.

Innovation Solution

The development of devices and systems for pressure-regulated control of fluids during hysterosalpingography, which include constant force spring and check-valve mechanisms to manage fluid pressure and prevent excessive force on the uterus and fallopian tubes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If fluid pressure is increased to improve contrast visualization during hysterosalpingography, then diagnostic quality is improved, but the risk of expelling or disrupting tubal occlusions increases

Engineering Contradiction:
Improvediagnostic qualityVSAvoidexpulsion or disruption of occlusions
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

A pressure-regulating device is introduced as an intermediary between the fluid delivery system and the uterus. This device includes a pressure indicator and control mechanism that mediates the force transmission, allowing the physician to monitor and regulate pressure to prevent expulsion or disruption of tubal occlusions while maintaining adequate contrast visualization for diagnostic quality

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system incorporates a pressure indicator that provides real-time feedback to the physician about the fluid pressure being applied. This feedback mechanism enables the physician to adjust the fluid delivery to maintain pressure within safe limits, preventing harmful effects on tubal occlusions while ensuring sufficient contrast for accurate diagnosis

Inventive Principle:
Principle #23Feedback

2Object-affected harmful factors

If fluid pressure is strictly controlled below 200 mm Hg to prevent tissue damage, then patient safety is improved, but the ability to achieve adequate contrast filling is reduced

Engineering Contradiction:
Improvetissue damageVSAvoidcontrast filling adequacy
Core Design Contradiction:
Object-affected harmful factorsVSMeasurement precision

Solution Approach 1:

The pressure-regulating device provides dynamic control of fluid pressure, allowing the system to adapt pressure levels during the procedure. The device can maintain pressure below 200 mm Hg to prevent tissue damage while providing sufficient contrast filling through controlled, progressive pressure application rather than abrupt high-pressure injection

Inventive Principle:
Principle #15Dynamics

3Device complexity

If manual pressure monitoring is used to ensure safe pressure levels, then device complexity is reduced, but the reliability of pressure control is insufficient

Engineering Contradiction:
Improvepressure monitoring systemVSAvoidpressure control reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The pressure-regulating device is designed to self-monitor and self-regulate fluid pressure through an integrated pressure indicator and control mechanism. This self-service approach eliminates the need for complex external monitoring systems while providing reliable, automatic pressure control to prevent tissue damage and ensure safe procedure completion

Inventive Principle:
Principle #25Self-service

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

These systems enable accurate confirmation of fallopian tube occlusion while preventing damage to the occlusions or surrounding tissues, thereby enhancing diagnostic accuracy and patient safety.

Implementation Method 1

The device may comprise a constant force spring mechanism that maintains a predetermined force level

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

check-valve mechanisms to manage fluid pressure and prevent excessive force on the uterus and fallopian tubes

Methodology Applied
Scientific EffectCheck valve: Valve

Data Source

PatentUS20250041507A1Methods and devices for managing fluid pressure
Publication Date: 2025.02.06 FEMASYS INC
  • US20250041507A1 patent drawing
  • US20250041507A1 patent drawing
  • US20250041507A1 patent drawing

AI summary

The present invention comprises methods, compositions, devices and systems for determining the status of, or treating, a body structure or conduit. An embodiment of the invention comprises a fluid pressure control device for pressure control of fluid introduced into a body structure or conduit.