Powered In-Line Handle Assembly for Single-Handed Surgical Devices
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Solution Overview
Problem
Current surgical stapling devices require both hands to operate, limiting the clinician's ability to perform additional tasks during procedures, such as stabilizing tissue, due to the need for separate actuators and mechanisms for stapling, cutting, and articulation.
Innovation Solution
A powered in-line handle assembly with integrated actuators and a motor system that allows single-handed operation by positioning actuators close together for easy access, including a manual release mechanism for emergency situations and a removable battery compartment for recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple actuators and mechanisms are included for stapling, cutting, and articulation, then the device capabilities are improved, but the ease of operation deteriorates requiring both hands to operate
Solution Approach 1:
Multiple actuators for stapling, cutting, and articulation are merged into a single integrated handle assembly with a unified control mechanism. The firing rod assembly integrates multiple functions into one coordinated system that can be operated with a single hand, combining previously separate controls into a single operable unit.
Solution Approach 2:
The handle assembly is designed as a universal control unit that performs multiple functions (stapling, cutting, articulation) through integrated actuators. The single handle assembly serves as a multi-functional device that replaces the need for separate hand-operated mechanisms, allowing one hand to control all surgical functions.
2Reliability
If the battery is permanently installed, then the device reliability is improved, but the ease of repair deteriorates due to inability to replace battery for recycling
Solution Approach 1:
The battery system is segmented into a removable battery pack and a handle assembly. The battery is housed in a separate removable compartment that can be detached and replaced independently from the main device body, allowing battery recycling while maintaining reliable power supply during operation.
Solution Approach 2:
The battery installation transitions from a static permanent mount to a dynamic removable configuration. The battery compartment is designed to allow easy insertion and removal of the battery pack, enabling flexibility for battery replacement and recycling while maintaining secure connection during use.
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 single-handed operation of surgical devices, allowing clinicians to perform multiple tasks simultaneously by integrating actuators and a motor system within the handle assembly, while ensuring easy battery replacement and emergency manual retraction of the firing rod.
Implementation Method 1
The motor includes a drive shaft supported within the cavity of the stationary body. The motor is coupled to the drive rod and is operable to move the drive rod between a retracted position and an advanced position.
Data Source
AI summary
A surgical device with a powered in-line handle assembly that includes actuators for actuating and articulating an end effector of the surgical device allows for single handed operation of the surgical device. The handle assembly includes a battery that is received in a removable compartment in a battery cover to allow for removal and recycling of the battery following use. The handle assembly also includes a manual release mechanism that allows a firing rod assembly of the handle assembly to be manually retracted in emergency situations.