Surgical Stapling System with Manual Bailout and Modular Tool Assemblies
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Solution Overview
Problem
Current surgical stapling systems face challenges in providing a versatile and efficient mechanism for stapling and cutting tissue, with limitations in interchangeable tool assemblies and lockout systems that prevent improper operation or tissue damage.
Innovation Solution
The development of a surgical instrument with a modular handle assembly and interchangeable surgical tool assemblies, featuring a rotary drive system, bailout system, and advanced lockout mechanisms to ensure safe and efficient stapling and cutting operations, including a shifter solenoid for power failure scenarios and sensors for position feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a modular handle assembly with interchangeable surgical tool assemblies is implemented, then versatility and adaptability are improved, but device complexity increases
Solution Approach 1:
The surgical system is divided into modular components including a handle assembly and interchangeable surgical tool assemblies. Each tool assembly can be independently attached or detached, allowing the system to be configured for different surgical procedures while maintaining a standardized base platform.
Solution Approach 2:
The handle assembly is designed with universal interfaces and control mechanisms that can accommodate multiple types of surgical tool assemblies. This multi-functionality allows a single handle assembly to operate various surgical instruments through standardized coupling mechanisms.
2Reliability
If advanced lockout mechanisms are implemented to prevent improper operation, then safety is improved, but device complexity increases
Solution Approach 1:
Lockout mechanisms are built into the system that prevent improper operations before they can occur. These mechanisms include interlocks that must be satisfied before certain actions can be taken, and physical constraints that prevent assembly of incompatible components, thereby eliminating potential safety issues before they arise.
3Reliability
If a rotary drive system with shifter solenoid is implemented for power failure scenarios, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
A shifter solenoid is incorporated into the rotary drive system to provide a bailout mechanism for power failure scenarios. This component allows manual or alternative actuation of the drive system when primary power is lost, ensuring that surgical procedures can continue or be safely terminated despite power interruptions.
4Measurement precision
If sensors for position feedback are implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Sensors are integrated into the surgical tool assemblies to provide real-time position feedback to the control system. This feedback enables precise control and monitoring of tool positions, depths, and orientations during surgical procedures, allowing for closed-loop control that enhances precision while maintaining intuitive operation.
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
Enables versatile surgical procedures with improved safety and efficiency by allowing for interchangeable tool assemblies and precise control, ensuring proper stapling and cutting operations even in power failure situations, and providing user feedback on tool position.
Implementation Method 1
a shifter solenoid for power failure scenarios
Data Source
AI summary
A surgical instrument system is disclosed which comprises a distal end and a staple cartridge assembly comprising staples removably stored therein. The instrument system further comprises a firing drive including an electric motor and a firing member operably couplable with the electric motor. The electric motor is operable to advance the firing member toward the distal end during a staple firing stroke to eject the staples from the staple cartridge. The electric motor is operable to retract the firing member away from the distal end during a retraction stroke. The surgical instrument system further comprises a manually-operated bailout mechanism operable to perform the retraction stroke in lieu of the electric motor, a controller, and a display in communication with the controller. The controller is configured to display the progress of the retraction stroke when the firing member is being manually retracted by the bailout mechanism.