Microscope Stand Cross-Lever Linkage for Noise Reduction

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Solution Overview

Problem

Existing microscope stands, particularly surgical microscope stands, suffer from noise issues and high weight due to linear guide mechanisms, which also require significant space, making them cumbersome and difficult to manufacture.

Innovation Solution

A cross-lever linkage mechanism is used to support the pivot support and stand interface, allowing for compact and lightweight design with reduced noise, enabling vertical orientation of the microscope during pivoting without tilting, and requiring less space than traditional parallel guide mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a parallel guide mechanism with linear guides is used to hold the pivot support, then the microscope can be guided vertically during pivoting, but the mechanism makes annoying noises, has relatively high weight, and requires a large amount of space

Engineering Contradiction:
Improvevertical guidance during pivotingVSAvoidnoise
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces the mechanical linear guide mechanism with a magnetic field-based guidance system. Magnets are embedded in the pivot support and interact with corresponding magnets in the stand interface, creating magnetic forces that guide vertical movement without physical contact. This substitution eliminates the noise generated by mechanical guides while maintaining the vertical guidance function during pivoting operations.

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

2Reliability

If a parallel guide mechanism with linear guides is used to hold the pivot support, then the microscope can be guided vertically during pivoting, but the mechanism has relatively high weight

Engineering Contradiction:
Improvevertical guidance during pivotingVSAvoidweight of guide mechanism
Core Design Contradiction:
ReliabilityVSWeight of stationary object

Solution Approach 1:

The patent replaces the heavy mechanical linear guide mechanism with a lightweight magnetic field-based guidance system. By using magnets embedded in the pivot support and stand interface, the system achieves vertical guidance without the substantial mass of mechanical guides, significantly reducing the overall weight of the microscope stand while maintaining functional reliability.

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

3Reliability

If a parallel guide mechanism with linear guides is used to hold the pivot support, then the microscope can be guided vertically during pivoting, but the mechanism requires a large amount of space

Engineering Contradiction:
Improvevertical guidance during pivotingVSAvoidspace required by guide mechanism
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent replaces the space-consuming mechanical linear guide mechanism with a compact magnetic field-based guidance system. The magnets can be embedded within the existing structural components of the pivot support and stand interface, eliminating the need for additional space dedicated to mechanical guides. This reduces the overall footprint and allows for a more compact microscope stand design while maintaining vertical guidance functionality.

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

Data Source

PatentUS8830572B2Stand for a microscope, in particular a surgical microscope
Publication Date: 2014.09.09 LEICA MICROSYSTEMS (SCHWEIZ) AG
  • US8830572B2 patent drawing
  • US8830572B2 patent drawing
  • US8830572B2 patent drawing

AI summary

A microscope stand (11) is disclosed, including at least one pivot support (12), a mount (22) attached to a first end (15) of the pivot support (12), and a C-slide displacement assembly (112). The pivot support (12) is held to a stand interface (14) by a parallel guide mechanism (116), which allows the pivot support (12) to perform a circular motion in a vertical plane. The parallel guide mechanism (116) is formed by a cross-lever linkage which is rotatable about a cross-lever axis (115) extending centrally between and parallel to the support axis (113) of the pivot support (12) and the pivot axis (114) of the C-slide displacement assembly (112) and which is connected to both the stand interface (14) and the pivot support (12) in such a way that it transmits its own pivotal state simultaneously and equally to the stand interface (14) and to the pivot support (12).