Bronchoscope Adapter Integrating Sealing and Locking Functions
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Solution Overview
Problem
Bronchoscopies require complex multi-person operations, often resulting in reduced precision due to the need for additional hands to manage the bronchoscope and tools, and the interchange of devices for sealing and locking functions is cumbersome, especially when using a locatable guide and vacuum suction.
Innovation Solution
A sealing and locking adapter for the bronchoscope's working channel that combines elastomeric valve and clamping functions, along with a clip for retaining accessories and a wrap-around handle extension to facilitate single-handed operation, allowing for secure tool insertion and sealing without requiring device replacement during procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices are interchanged for sealing and locking functions, then the bronchoscope can perform different functions (suction, tool locking), but the procedure becomes cumbersome and requires additional hands
Solution Approach 1:
The patent combines multiple functions (sealing, locking, and tool retention) into a single integrated adapter assembly that attaches to the bronchoscope's working channel. This eliminates the need to interchange multiple separate devices during the procedure, resolving the technical contradiction by maintaining functional versatility while reducing device interchange complexity
Solution Approach 2:
The adapter assembly is designed as a universal interface that can perform multiple functions simultaneously - sealing the working channel when not in use, locking tools in position during procedures, and retaining accessories via the clip mechanism. This multi-functional design allows a single device to replace multiple specialized components
2Ease of operation
If additional hands are used to manage bronchoscope and tools, then tool insertion and actuation can be performed, but precision is reduced due to complex multi-person coordination
Solution Approach 1:
The adapter assembly incorporates automatic tool retention and positioning features that reduce the need for continuous manual manipulation. The elastic biasing mechanism automatically maintains sealing contact, and the clip structure passively retains tools without requiring constant active management, thereby improving precision by reducing coordination complexity
Solution Approach 2:
The elastomeric valve and clamping block utilize flexible material properties to automatically adapt to tool dimensions and maintain sealing/locking forces. This passive adaptation reduces the need for active manual adjustment and coordination between multiple persons
3Reliability
If the bronchoscope working channel is sealed for suction, then vacuum suction can be applied, but tool insertion through the same channel is prevented
Solution Approach 1:
The sealing system transitions from a static sealed state during suction to a dynamic open state during tool insertion. The elastomeric valve is designed to be temporarily displaced by inserted tools, allowing dynamic switching between sealing and tool passage functions without compromising suction reliability when sealed
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 practitioner operation with improved precision and efficiency by providing a hands-free solution for tool management and device interchange, reducing the complexity and cost associated with multi-person procedures.
Implementation Method 1
an elastomeric valve elastically biased to a normally-closed state wherein the elastomeric valve forms part of a sealing arrangement
Implementation Method 2
the tightening mechanism being manually operable to deform the elastomeric clamping block so as to lock in position the tool inserted through the housing and into the working channel
Data Source
AI summary
A clip or flexible handles extension facilitate simultaneous retention and operation of a bronchoscope and associated bronchoscopic tools held in one hand to allow operation by a single practitioner. Also provided is an adapter for the connection port of the working channel of a bronchoscope which performs both sealing and tool-locking functions. Also disclosed is a guide sheath arrangement with a reduced flexibility proximal portion to facilitate insertion of tools into the guide sheath.