Rigid Endoscope Sampling Trap for Orientation-Stable Collection
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Solution Overview
Problem
Existing sampling devices for endoscopes, such as the Lukens trap, suffer from orientation challenges and require cumbersome tube connections/disconnections, leading to sample loss and increased operational complexity during procedures like bronchial lavage.
Innovation Solution
A sampling device that attaches to the endoscope's suction channel, featuring a rigid flange for secure engagement, a valve actuator accessible with one hand, and a sample container connector, allowing easy sample collection and diversion, while being disposable to reduce contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a Lukens trap is suspended on the suction line, then sample collection is enabled, but the operator loses orientation awareness and sample may be lost due to incorrect orientation
Solution Approach 1:
The sampling device is rigidly connected to the endoscope handle, transforming the sampling trap from a suspended component on the suction line to an integrated component in the handle assembly. This spatial repositioning ensures the operator maintains constant visual and tactile awareness of the trap's orientation and position throughout the procedure.
Solution Approach 2:
The sampling device is merged with the endoscope handle by rigid connection, creating a unified assembly. This integration ensures that the sampling device follows the movements of the endoscope handle and maintains proper orientation relative to the operator's field of view and control.
2Adaptability or versatility
If tubes and parts are connected and disconnected during the procedure, then sampling and suction functions are enabled, but operational complexity and time are increased
Solution Approach 1:
The sampling device integrates multiple functions (sampling, suction control, saline instillation) into a single unified assembly that remains connected to the endoscope throughout the procedure. This eliminates the need to disconnect and reconnect separate tubes and components when switching between sampling and suction modes.
Solution Approach 2:
The sampling device incorporates multiple functional capabilities within a single integrated unit: sample collection through the trap, suction control through integrated valve actuators, and saline instillation through connected syringes. This multi-functionality allows all operations to be performed without disconnecting the device from the endoscope.
3Stability of the object's composition
If a rigid flange connection is used between sampling device and endoscope, then orientation stability is improved, but device complexity increases
Solution Approach 1:
The flange connection employs asymmetric features including a protrusion on the sampling device that engages with a corresponding recess in the endoscope handle, and a non-circular shape with specific orientation markers. This asymmetric design provides stable, rotation-prevented connection while maintaining relatively simple structural elements.
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 device provides intuitive orientation, reduces sample loss, simplifies the procedure, and minimizes contamination by ensuring secure attachment and easy handling, facilitating efficient and cost-effective sampling.
Implementation Method 1
a relatively rigid flange adapted to the shape of the endoscope, but with suitable resiliency to snap into engagement with the endoscope
Implementation Method 2
an external suction and a Lukens trap... using an endoscope... as much as possible extracted again, now containing organic material
Data Source
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AI summary
A sampling device (9) for the use with an endoscope (1) having a suction channel and a suction connector (4) in communication with said suction channel. The sampling device (9) is adapted for connection to the suction connector (4) and said sampling device (9) is adapted for connection to a vacuum source. The sampling device (9) is adapted for forming a rigid connection with said endoscope (1) when connected to the suction connector thereof (4).