Inclined Protective Lens Microscope Drape for Surgical Space

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Solution Overview

Problem

Conventional microscope drapes for surgical microscopes pose obstacles during surgery due to protruding lens caps and require excessive force for attachment/detachment, especially with protective lenses that increase in size, hindering surgical manipulation space and ease of use.

Innovation Solution

A microscope drape design featuring a lens cap attached to the housing of the surgical microscope, a protective lens inclined relative to the optical axis, and a joint to adjust the inclination angle, along with a drape body that covers the microscope, allowing for adjustable spacing between the objective lens and the surgical field to ensure operator safety and ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a protective lens is attached to the lens cap to prevent glare, then the protective function is improved, but the lens cap size increases and becomes an obstacle for surgery

Engineering Contradiction:
Improveglare preventionVSAvoidsurgical manipulation space
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by making the protective lens movable rather than fixed. The protective lens can be tilted and adjusted to different positions, allowing it to protect the objective lens from glare while being moved out of the way when not needed, thus maintaining clear surgical manipulation space.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent utilizes dimensional change by allowing the protective lens to move in multiple directions (tilting and rotating) rather than being confined to a single fixed position. This multi-dimensional movement enables the lens to provide protection when needed while clearing the surgical path when not needed.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Object-affected harmful factors

If the lens cap is increased in size to accommodate the protective lens, then the protective function is improved, but the attachment force required increases

Engineering Contradiction:
Improveobjective lens protectionVSAvoidattachment force
Core Design Contradiction:
Object-affected harmful factorsVSForce

Solution Approach 1:

The patent applies segmentation by separating the protective lens from the main lens cap body. The protective lens is mounted on a rotating support structure that allows it to be detached or tilted independently, reducing the overall size requirement of the lens cap while maintaining protection capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dynamic mounting mechanism allows the protective lens to be securely attached when needed for protection while enabling easy detachment or repositioning, reducing the continuous attachment force requirement compared to a fixed large-sized lens cap.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If the protective lens is fixed in position, then the structure is simplified, but the surgical manipulation space is reduced

Engineering Contradiction:
Improvelens cap structureVSAvoidsurgical field access
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent implements a dynamically adjustable protective lens that can be tilted and rotated to different positions. This dynamic capability allows the lens to be moved out of the surgical field when not needed, maintaining clear access while providing protection when required.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The protective lens is positioned and adjusted in advance before surgery begins, allowing the surgical team to optimize its position for both protection and minimal interference with surgical manipulation throughout the procedure.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11493755B2Microscope drape
Publication Date: 2022.11.08 MEILLEUR CO LTD
  • US11493755B2 patent drawing
  • US11493755B2 patent drawing
  • US11493755B2 patent drawing

AI summary

A microscope drape with a structure in which a distance between an objective lens and a surgical field is appropriately set includes: a lens cap attached to or detached from a housing of an objective lens of a surgical microscope; a protective lens attached to a distal end of the lens cap in a state of being inclined with respect to an optical axis of the objective lens to protect the objective lens; a drape body attached to an outer periphery of the protective lens to cover, together with the lens cap, the surgical microscope; and a joint that supports the protective lens with respect to the lens cap so as to change an inclination angle of the protective lens with respect to the optical axis.