Medical Robot Pneumatic Manifold Layout for Compact Precise Control

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Solution Overview

Problem

The existing pneumatic drive mechanisms for medical robots are bulky due to the increased number of drive sources required for precise control of surgical tools, which complicates the operation, orientation, and angle control, necessitating a reduction in device size while maintaining accuracy and stability.

Innovation Solution

A pneumatic drive system for medical robots is designed with a manifold having cylinders extending in one direction and air supply ports on the opposite side, allowing for the consolidation of air supply ports and pipes in a compact layout, reducing the device's size by orthogonal arrangement of cylinders and pipes, and incorporating a linear encoder for precise positioning without interfering with air supply ports.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple drive sources are added for precise control of surgical tools, then control precision is improved, but device size increases

Engineering Contradiction:
Improvecontrol precisionVSAvoiddevice size
Core Design Contradiction:
Measurement precisionVSVolume of stationary object

Solution Approach 1:

The patent combines multiple air supply ports and pipes into a single integrated manifold structure. This merging of previously separate pneumatic components into one unified manifold reduces the overall device volume while maintaining the precision control capability provided by multiple drive sources.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manifold employs an orthogonal arrangement where cylinders extend in one direction (first direction) while air supply ports are positioned on the opposite side. This spatial reorganization in different dimensions allows compact packaging of multiple pneumatic components without compromising control precision.

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

2Manufacturing precision

If multiple cylinders and pipes are arranged for precise positioning, then positioning accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent integrates multiple cylinders and air supply ports into a single manifold structure, reducing the number of separate components and connections required. This merging simplifies the overall device complexity while maintaining positioning accuracy through the coordinated action of multiple pneumatic actuators.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manifold serves multiple functions simultaneously: it houses multiple cylinders, provides multiple air supply ports, and enables precise positioning control. This multi-functionality reduces the need for separate dedicated components, thereby simplifying the overall device architecture.

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

3Reliability

If air supply ports and pipes are distributed throughout the mechanism, then pneumatic functionality is improved, but device size increases

Engineering Contradiction:
Improvepneumatic functionalityVSAvoiddevice size
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent consolidates multiple air supply ports and pipes into a single manifold structure, maintaining comprehensive pneumatic functionality while significantly reducing the space required compared to distributed arrangements of separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manifold uses orthogonal arrangement with cylinders extending in one direction and air supply ports positioned on the opposite side, enabling compact three-dimensional packaging that preserves pneumatic functionality while minimizing device volume.

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

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

This configuration effectively reduces the size of the medical robot's device configuration while maintaining precise control and accuracy, enhancing the robot's ability to perform complex surgical operations with reduced mechanical bulk and improved design flexibility.

Implementation Method 1

a pneumatic drive for a medical robot comprising a manifold having a plurality of cylinders extending in a first direction; and respective rods corresponding to the plurality of cylinders, the rods extending on one side of the plurality of cylinders in the first direction

Methodology Applied
Scientific EffectPneumatic pressure: Pressure Increase

Implementation Method 2

incorporating a linear encoder for precise positioning without interfering with air supply ports

Methodology Applied
Scientific EffectLinear encoder detection:

Data Source

PatentUS12023115B2Medical-robot pneumatic drive mechanism
Publication Date: 2024.07.02 RIVERFIELD INC
  • US12023115B2 patent drawing
  • US12023115B2 patent drawing
  • US12023115B2 patent drawing

AI summary

A pneumatic drive for a medical robot includes a manifold having cylinders extending in a first direction, and respective rods corresponding to the cylinders, the rods extending on one side of the cylinders in the first direction. The manifold includes air supply ports that feed the cylinders with air for moving the respective rods forward and backward. The air supply ports are provided on another side of the manifold in the first direction.