Deformable Polymeric Vascular Occlusion Device
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Solution Overview
Problem
Current devices for vascular occlusion, such as clamps and clips, often apply inconsistent force based on vessel diameter and surrounding tissue dimensions, potentially causing tissue damage and increasing the risk of hypoxia or necrosis during procedures like postpartum hemorrhage control.
Innovation Solution
A device featuring a deformable polymeric piece that controls occlusion force without using elastic media, ensuring consistent pressure application regardless of vessel diameter or tissue dimensions, and an ergonomic design for easy placement and removal using Foerster clamps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clamps and clips are used for vascular occlusion, then the occlusion function is achieved, but the applied force is inconsistent and varies with vessel diameter and tissue dimensions, potentially causing tissue damage
Solution Approach 1:
The patent applies parameter changes by using a deformable polymeric piece that changes its physical state from flexible during placement to rigid during occlusion. The polymer transitions from a compliant state that allows easy positioning to a stiff state that provides consistent occlusion force, thereby achieving reliable occlusion while preventing tissue damage through controlled parameter transformation.
Solution Approach 2:
The invention uses composite materials by combining polymeric materials with specific mechanical properties that exhibit non-linear deformation characteristics. The deformable polymeric piece is made from materials that can be engineered to have specific stress-strain curves, allowing them to deform initially for placement then resist further deformation to provide consistent occlusion force independent of vessel size.
2Reliability
If a deformable polymeric piece is used to control occlusion force, then consistent pressure is applied regardless of vessel diameter, but the device complexity increases
Solution Approach 1:
The deformable polymeric piece operates on self-service principle by automatically adjusting its occlusion force based on its own deformation characteristics. The polymer's inherent material properties cause it to exert consistent force regardless of the vessel diameter, eliminating the need for external force regulation mechanisms, adjustable components, or complex control systems.
Solution Approach 2:
The patent uses parameter changes in the material properties of the polymer itself to achieve force consistency. By selecting polymers with specific viscoelastic or hyperelastic properties, the device automatically compensates for variations in vessel diameter and tissue thickness without requiring additional components or complex mechanisms.
3Ease of operation
If the device is designed for easy placement and removal using Foerster clamps, then the ease of operation is improved, but the device requires specific operational procedures
Solution Approach 1:
The device achieves universality by being compatible with standard Foerster clamps, which are commonly used surgical instruments. This allows the deformable polymeric occlusion device to be applied using existing surgical techniques and tools, improving ease of operation without requiring specialized equipment or training beyond standard surgical procedures.
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 effectively occludes blood vessels with consistent force, minimizing tissue damage and risk of hypoxia or necrosis, and can be applied efficiently on both sides of the body by right- or left-handed personnel, ensuring reliable hemorrhage control.
Implementation Method 1
a deformable polymeric piece that controls occlusion force without using elastic media, ensuring consistent pressure application regardless of vessel diameter or tissue dimensions
Data Source
AI summary
A device for occlusion of blood vessels and hemorrhage control, whose design it allows to control the force of application of the blood vessel that is intended to be occluded and during its placement, applies always the same force, regardless of the diameter of the blood vessel to be occluded and/or the dimensions of the tissue that surrounds it.