Bending Instrument for Surgical Dilation Guide

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Solution Overview

Problem

Current dilation instruments for anatomical passageways lack a reliable method to consistently achieve and maintain specific bend angles in malleable guides, which is crucial for precise positioning during procedures like sinus dilation, leading to potential misalignment and inefficiency.

Innovation Solution

A dilation instrument system that includes a malleable guide member and a bending instrument with a grounding member and actuator, allowing for precise bending and locking of the guide member to achieve consistent bend angles, along with indicators for visual confirmation of the desired angle, ensuring accurate positioning within anatomical passageways.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a malleable guide member is used in dilation instruments, then the instrument can be positioned in anatomical passageways requiring bending, but the bend angle cannot be consistently achieved or maintained

Engineering Contradiction:
Improvepositioning capability in anatomical passagewaysVSAvoidbend angle consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The bending instrument allows the malleable guide member to be pre-bent to a specific angle before insertion into the anatomical passageway. The actuator is positioned and adjusted in advance to achieve the desired bend angle, ensuring consistent positioning capability while maintaining precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual manipulation and estimation of bend angles with a mechanical actuator system that provides controlled, repeatable bending. The actuator mechanism substitutes for operator skill and judgment, delivering consistent bend angles through mechanical precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If manual bending of the malleable guide is performed, then the instrument can be quickly prepared, but the bend angle precision and consistency are compromised

Engineering Contradiction:
Improveinstrument preparation speedVSAvoidbend angle accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The manual bending process is replaced with a mechanical actuator system that automatically positions and bends the malleable guide member to the precise angle. This mechanical substitution maintains quick preparation time while eliminating the imprecision of manual manipulation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The actuator system allows for precise control of the bend angle parameter, enabling consistent reproduction of specific angles. The mechanical system transforms the variable, imprecise manual bending into a controlled, parameter-based process with repeatable results.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the actuator is positioned away from the malleable guide, then the bending mechanism has more space to operate, but the control precision over the bend angle decreases

Engineering Contradiction:
Improveactuator positioning flexibilityVSAvoidbend angle control precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The actuator is positioned at a specific location optimized for both operational ease and control precision. The grounding member and actuator configuration creates a local mechanical advantage that provides precise control over the bend angle while maintaining sufficient operating space.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The actuator mechanism serves multiple functions: it provides the bending force, controls the bend angle precision, and maintains positioning flexibility. This multi-functional design resolves the contradiction by integrating space requirements with control precision in a single mechanism.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11013897B2Apparatus for bending malleable guide of surgical instrument
Publication Date: 2021.05.25 ACCLARENT INC
  • US11013897B2 patent drawing
  • US11013897B2 patent drawing
  • US11013897B2 patent drawing

AI summary

An apparatus includes a grounding member and an actuator. The grounding member includes a first grounding feature and a bending channel. The first grounding feature is configured to engage a dilation instrument. The bending channel is configured to receive a malleable member of the dilation instrument. The actuator is pivotably coupled with the grounding member. The actuator has a bearing surface. The bearing surface is configured to cooperate with the bending channel to thereby bend the malleable member of the dilation instrument as the actuator is pivoted relative to the grounding member.