Coil Detachment Heating Locus for Reliable Neurovascular Release

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Solution Overview

Problem

Detachment of coils within the cerebral neurovascular space is challenging due to issues with conventional systems, including inefficient heat distribution and the formation of mushroom-shaped artifacts.

Innovation Solution

The system employs improved electrical locus targeting and coaxialization to shift the heating point to the distal end of the coil, reducing or eliminating the dragger region and ensuring reliable detachment by designing the heater coil to melt the stretch resistance thread closer to the tip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional detachment methods are used, then the detachment process can be performed, but reliability of detachment is poor and issues arise

Engineering Contradiction:

Improvereliability of coil detachmentVSAvoidcomplexity of detachment system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical detachment methods with electrical heating. The heater coil generates thermal energy electrically to melt the stretch resistance thread, achieving detachment through thermal-mechanical conversion rather than direct mechanical force, thereby improving reliability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent optimizes the heater coil positioning and heating parameters to achieve reliable detachment. By adjusting the locus of the heater coil and controlling the heating temperature and duration, the system achieves consistent melting of the SR thread without excessive complexity

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the heater coil locus is not precisely targeted, then manufacturing is simpler, but thermal detachment efficiency is reduced and harmful factors increase

Engineering Contradiction:

Improveefficiency of thermal detachmentVSAvoidmushroom-shaped artifacts and overheating

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by concentrating the heating function at a specific locus within the heater coil that corresponds to the SR thread location. This localized heating approach ensures efficient melting at the detachment point while minimizing heat diffusion to surrounding areas, preventing mushroom-shaped artifacts

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent converts the potential harmful effect of heat diffusion into a benefit by using the heater coil's electrical resistance heating to precisely melt the SR thread. The controlled thermal energy, which could otherwise cause overheating artifacts, is directed to achieve reliable thread melting for detachment

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

This approach ensures reliable detachment of coils by optimizing heat distribution and minimizing mushroom-shaped artifacts, enhancing the efficiency and reliability of coil detachment systems.

Implementation Method 1

electrical current is delivered from the XCEL® brand of controller... electrical locus targeting... heater coil becomes most heated... heater coil is designed to melt said SR thread

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

heater coil is designed to melt said SR thread allowing the implant to separate from the pusher... hottest point at the tip by distal movement and folding

Methodology Applied

Scientific EffectThermal melting: Melting

Data Source

PatentUS12622702B2Optimized detachment systems based on leverage from electrical locus targeting and related medical devices

Publication Date: 2026.05.12 BALT USA LLC

AI summary

Improved thermal detachment driven by leverage from: improved electrical locus targeting allows electron density to define Optimal Regions balancing the resistance and heat whereby, detachment systems are shifted and realigned coaxially and placed closer to the ends of subject coils while being hermetically sealed, manufacturing steps are taught. to show how system is made.