Microscope Stand Base with Single-Pedal Braking System

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Solution Overview

Problem

Surgical microscope stands face challenges with complex and laborious braking systems that require multiple pedals for secure immobilization, risking unintentional movement due to potential oversight in actuation, and are ergonomically unfavorable for operation and transport due to heavy weight and design.

Innovation Solution

A stand base with a simplified braking system featuring a single actuation element coupled to both braking feet via a bar system, allowing easy and secure immobilization with a single pedal operation, and modular design for adjustable weight distribution using interchangeable weights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple individual braking feet with separate actuation elements are used, then secure immobilization is achieved, but the device complexity and ease of operation deteriorate due to requiring multiple pedals

Engineering Contradiction:
Improvesecure immobilizationVSAvoidmultiple braking feet with separate actuation
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple braking feet into a single integrated braking unit that is actuated by a single pedal. The braking unit includes multiple braking feet that are mechanically linked through a common actuation mechanism, so that pressing one pedal simultaneously activates all braking feet to contact the floor and immobilize the stand base.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single pedal serves multiple functions: it actuates all braking feet simultaneously, provides a common force application point for the operator, and simplifies the control interface to a universal single-point actuation system that replaces multiple individual control elements.

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

2Reliability

If multiple individual braking feet with separate actuation elements are used, then secure immobilization is achieved, but the ease of operation deteriorates due to risk of forgetting to actuate all braking feet

Engineering Contradiction:
Improvesecure immobilizationVSAvoidoperation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent merges the actuation of multiple braking feet into a single unified action. The mechanical linkage ensures that when the operator presses the single pedal, all braking feet are simultaneously actuated, eliminating the possibility of overlooking any individual braking foot and ensuring complete immobilization through a single intuitive motion.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If the stand base is made very heavy to prevent tipping, then stability improves, but the ease of operation and transportability deteriorate

Engineering Contradiction:
Improveanti-tipping stabilityVSAvoidtransportability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent employs additional counterweights that can be selectively positioned on the stand base to adjust the center of gravity and provide balance compensation. These counterweights counteract the tipping moment caused by the long-reach arms and microscope components, allowing the stand base to remain stable without requiring excessive overall weight, thereby improving transportability while maintaining stability.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

4Stability of the object's composition

If additional weights are placed on a plate connected via threaded rod, then weight adjustment for stability is achieved, but the ease of manufacture and installation deteriorates due to laborious assembly

Engineering Contradiction:
Improveweight distributionVSAvoidinstallation complexity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent segments the weight adjustment system into modular additional weights that can be independently positioned and secured directly on the stand base body. Each weight can be separately installed or removed without requiring assembly of multiple components, simplifying the installation process while allowing flexible weight distribution for optimal balance and stability.

Inventive Principle:
Principle #1Segmentation

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 solution provides ergonomic and efficient secure immobilization of surgical microscopes with reduced risk of unintentional movement, simplified installation, and adaptable weight distribution for balanced stability, enhancing operational convenience and transportability.

Implementation Method 1

at least two braking feet that, in a braking position, press against the floor and thereby prevent or at least impede a displacement of the stand base

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9732902B2Stand base for microscopes
Publication Date: 2017.08.15 LEICA MICROSYSTEMS (SCHWEIZ) AG
  • US9732902B2 patent drawing
  • US9732902B2 patent drawing
  • US9732902B2 patent drawing

AI summary

The invention relates to a stand base (10) for microscopes, which encompasses a stand base body (12) on which multiple rollers (14 to 20) for displacing the stand base (10) are fastened. The stand base (10) furthermore has a braking system (40) to prevent displacement of the stand base (10), the braking system encompassing at least two braking feet (44, 46).