Articulated Urological Instrument Mount for Stable Flexible Positioning

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Solution Overview

Problem

Current surgical instrument holders with articulated arms lack a flexible yet stable platform for positioning cameras or instruments, limiting surgeons' ability to perform multiple tasks simultaneously during procedures.

Innovation Solution

A medical instrument mounting and positioning device featuring a platform with bilateral clamps attached to a spring-tensioned articulated arm, incorporating a flexible coil and multiple pivot screw joints, and a swivel ball joint for adjustable positioning on a surgical table.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid articulated arm with fixed joints is used to hold surgical instruments, then the instrument positioning is stable, but the flexibility and adjustability during surgery is limited

Engineering Contradiction:
Improveinstrument positioning stabilityVSAvoidpositioning flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The articulated arm incorporates multiple joints with different degrees of freedom (pivot joints for rotational movement, sliding joints for linear adjustment) that allow the arm to dynamically adapt its configuration during surgery while maintaining stable instrument holding capability at each positioned state

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The arm is divided into multiple segmented sections connected by articulated joints, where each segment can be independently positioned and locked, providing both stability when locked and flexibility when adjusted, resolving the contradiction between rigid stability and flexible adaptability

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple surgical instruments and cameras are held by separate holders, then each instrument can be positioned independently, but the device complexity and space requirements increase

Engineering Contradiction:
Improvemulti-instrument capabilityVSAvoidholder structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The articulated arm structure integrates multiple instrument holding capabilities into a single unified system, where the platform can accommodate various instruments and cameras while sharing common articulation mechanisms and control systems, reducing overall device complexity compared to multiple separate holders

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The platform at the end of the articulated arm is designed with universal mounting capabilities that can accommodate different types of surgical instruments and cameras, allowing a single holder structure to perform multiple functions that would otherwise require separate specialized holders

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

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

Enhances instrument control and flexibility, allowing surgeons to perform multiple tasks efficiently, reducing procedural time and personnel requirements across various surgical and urological procedures.

Implementation Method 1

spring-tensioned articulated arm

Methodology Applied
Scientific EffectSpring tension: Spring

Implementation Method 2

flexible coil

Methodology Applied
Scientific EffectFlexible coil deformation: Elasticity

Implementation Method 3

pivot screw joints

Methodology Applied
Scientific EffectScrew mechanical advantage: Screw

Implementation Method 4

swivel ball-and-socket joint

Methodology Applied
Scientific EffectBall-and-socket joint rotation: Ball

Data Source

PatentUS20080308688A1Urological Instrument Mounting Device
Publication Date: 2008.12.18 DILLARD KAYCELL
  • US20080308688A1 patent drawing
  • US20080308688A1 patent drawing
  • US20080308688A1 patent drawing

AI summary

A medical instrument mounting and positioning device is disclosed, comprising a platform with bilateral clamps to hold a camera or other instrument, said platform being movable via a swivel ball-and-socket joint and connected to a spring-tensioned articulated arm having a flexible coil and three longitudinal members connected by pivot screw joints. Another swivel ball joint is located at the non-instrument end of the articulated arm, to connect the arm to a support member that is anchorable to a surgical table or other surface.