Segmented Robotic Surgical Drapes for Static Visibility and Dynamic Durability
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Solution Overview
Problem
Existing robotic surgical systems face challenges in easily deploying drapes without inadvertently contaminating the external surgical sterile field.
Innovation Solution
A drape for robotic surgical systems is designed with a proximal section made of a diaphanous material for static components and a distal section made of a stronger material for dynamic components, joined via an adhesive, to maintain sterility and protect against liquid and particle ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-material drape is used to cover the robotic surgical arm, then the drape can be deployed easily, but it cannot provide both visibility of static components and durability for dynamic components simultaneously
Solution Approach 1:
The drape is divided into multiple sections, each made from materials optimized for specific functions: the proximal section uses a diaphanous material for visibility of static components, while the distal section uses a stronger material for durability with dynamic components. This segmentation allows each section to independently fulfill its specific functional requirements without compromising the overall drape performance.
Solution Approach 2:
Different sections of the drape are made from different materials with properties tailored to local requirements. The proximal section near static components uses a diaphanous material for visibility, while the distal section near dynamic components uses a stronger material for durability. This local quality approach ensures that each area of the drape has the appropriate material properties for its specific function.
2Strength
If a stronger material is used for the distal section covering dynamic components, then durability and tear resistance are improved, but the material must be joined to the proximal section which complicates manufacturing
Solution Approach 1:
The material properties are changed locally along the drape length, with the proximal section using a diaphanous material and the distal section using a stronger material. This parameter change allows optimization of strength where needed while maintaining visibility where required, with the transition managed through controlled joining processes.
3Illumination intensity
If the proximal section uses a diaphanous material for visibility, then clear viewing of static components is achieved, but the material has lower strength and is more susceptible to tearing
Solution Approach 1:
The drape is segmented into a proximal section with diaphanous material for visibility and a distal section with stronger material for durability. This segmentation resolves the contradiction by assigning the visibility function to the proximal section and the strength function to the distal section, allowing both requirements to be met simultaneously in different locations.
Solution Approach 2:
The proximal section of the drape is made from a diaphanous material that allows light transmission for clear viewing of static components, while the distal section is made from a stronger material that provides durability for dynamic components. This local quality differentiation resolves the contradiction between visibility and strength by applying the appropriate material property to the appropriate location.
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 drape effectively maintains sterility and protects the robotic system from contamination while allowing clear visibility of static components and enhanced durability for dynamic components.
Implementation Method 1
The proximal and distal sections may be joined to one another via a medical grade adhesive
Data Source
AI summary
A drape for covering a robotic surgical system includes a proximal section joined to and continuous with a distal section. The distal section is fabricated from a relatively strong material and is configured to cover the more dynamic portions of the robotic surgical system, and the proximal section is fabricated from a light-permeable material and is configured to cover the more static portions of the robotic surgical system.