Robotic Surgical Attachments with Manual Retraction Assemblies
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Solution Overview
Problem
Existing minimally invasive robotic surgical systems are limited in generating the necessary forces for effective tissue cutting and fastening, and they are restricted in the variety of surgical devices they can operate.
Innovation Solution
The development of a robotic surgical system with enhanced end effectors that include angled tissue-contacting surfaces and a modular design, allowing for the use of various surgical tools, such as electrosurgical instruments, and improved drive shaft assemblies for articulation and rotation, enabling greater dexterity and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If robotic surgical systems use conventional end effectors, then the system structure is simple, but the force generation capability is insufficient for effective tissue cutting and fastening
Solution Approach 1:
The end effector is divided into multiple functional segments including angled tissue-contacting surfaces, articulation joints, and rotation mechanisms. Each segment can be independently actuated to generate the necessary forces for tissue cutting and fastening while maintaining overall system functionality.
Solution Approach 2:
The end effector incorporates dynamic elements such as articulation joints and rotation mechanisms that allow real-time adjustment of the tool's orientation and force application. This enables the system to adapt to different tissue types and surgical requirements, generating appropriate forces for effective cutting and fastening.
2Adaptability or versatility
If robotic surgical systems use a single type of surgical device, then the device complexity is low, but the versatility and adaptability to different surgical procedures is limited
Solution Approach 1:
The robotic surgical system is designed with a universal interface that accommodates multiple types of surgical devices including cutting tools, fastening instruments, and electrosurgical instruments. The standardized coupling mechanism allows different end effectors to be interchangeably attached to the robotic arm, providing versatility across various surgical procedures without requiring separate specialized systems.
3Manufacturing precision
If robotic surgical systems lack angled tissue-contacting surfaces, then the device structure is simple, but the precision and control in tissue manipulation is insufficient
Solution Approach 1:
The end effector incorporates angled tissue-contacting surfaces with specific geometric configurations tailored to different surgical tasks. These localized geometric features provide enhanced precision and control in tissue manipulation by optimizing the contact mechanics and force distribution at specific locations on the tool surface.
Data Source
AI summary
A robotic surgical attachment is disclosed. The robotic surgical attachment comprises a control interface comprising a manually-actuated retraction assembly and a shaft extending distally from the control interface. The robotic surgical attachment further comprises an articulation region and an end effector assembly extending from the shaft by way of the articulation region. The end effector assembly comprises a firing member movable through a first distance during a jaw closure stroke and a second distance to cut and staple tissue clamped between jaws of the end effector assembly after the completion of the closure stroke. The manually-actuated retraction assembly is operable to selectively retract the firing member.