Intrauterine Pressure Catheter Interface Cable Zeroing
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Solution Overview
Problem
Conventional intrauterine pressure catheter systems lack efficient methods for in situ zeroing and verifying the functionality of interface cables, leading to inconvenient operations and potential errors in pressure measurement accuracy.
Innovation Solution
An interface cable system with a switching element and indicator for facilitating one-handed zeroing operations and a test plug for verifying cable functionality, providing visual feedback through a flashing light or continuous illumination to ensure proper system readiness and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional pressure catheter system is used without in situ zeroing capability, then the device structure remains simple, but the pressure measurement accuracy deteriorates due to inability to zero the catheter in situ
Solution Approach 1:
The zeroing functionality is extracted from the catheter itself and placed in the interface cable. The catheter remains simple while the cable contains the switching element and indicator that enable in situ zeroing, resolving the contradiction by separating the zeroing capability from the catheter structure.
Solution Approach 2:
The interface cable acts as an intermediary between the catheter and monitoring system, providing the zeroing capability through the switching element. This mediator allows the catheter to be zeroed in situ without requiring complex integrated circuits within the catheter itself.
2Ease of operation
If a multi-step verification process is used to check cable functionality, then comprehensive testing is achieved, but the ease of operation deteriorates due to complex procedures and potential human error
Solution Approach 1:
The indicator provides immediate visual feedback to the user about cable functionality and zeroing status. A single action on the switching element produces an observable response, eliminating the need for complex multi-step verification procedures while ensuring reliable operation through direct feedback.
Solution Approach 2:
The system performs self-verification through the indicator that automatically shows whether the cable is functioning properly when the switching element is activated. This self-testing capability eliminates the need for external verification procedures and reduces human error.
3Ease of operation
If a button-holding operation is required for zeroing, then the zeroing function can be controlled, but the ease of operation deteriorates because the user must hold the button with one hand while operating the monitor with the other
Solution Approach 1:
The switching element provides a time-limited window during which zeroing can be performed, indicated by the temporary activation of the indicator. This periodic or transient action allows the user to complete the zeroing operation quickly without prolonged button holding, reducing both the time required and the physical burden on the user.
Data Source
AI summary
An interface cable system for providing electrical interconnection between an intrauterine pressure catheter system and a monitoring system is provided. The interface cable system includes a first connector configured to provide electrical interconnection between the interface cable system and the intrauterine pressure catheter system and a second connector configured to provide electrical interconnection between the interface cable system and the monitoring system. The interface cable system also includes a plurality of conductors extending between said first connector and said second connector and a switching element for configuring the interface cable system to provide, upon operation of the switching element, a time period in which a zeroing operation of the intrauterine pressure catheter system may be performed. The interface cable system also includes an indicator for indicating that the switching element has been operated, thereby indicating that the zeroing operation may be performed during the time period.