Stop-Movement Device for Medical Assemblies
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Solution Overview
Problem
Existing medical devices, such as dilators and guidewires, require the cumbersome two-finger technique for handling, which can lead to procedural inefficiency and risk of patient or surgeon injury during procedures like transseptal puncture, due to the need to maintain the puncture device in place relative to the dilator hub.
Innovation Solution
A stop-movement device is integrated with elongated medical assemblies, allowing secure mounting and relative movement control between the dilator and needle assemblies, eliminating the need for the two-finger technique by locking the needle assembly in place within the dilator, enhancing safety and procedural efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the two-finger technique is used to maintain the puncture device in place relative to the dilator hub, then the puncture device can be held stationary, but the technique is awkward to execute, wastes valuable procedural time, and may lead to inadvertent injury to the patient and/or surgeon
Solution Approach 1:
A stop-movement device is introduced as an intermediary component between the puncture device and dilator assembly. This device includes a stop member that physically blocks movement of the puncture device relative to the dilator hub, eliminating the need for manual two-finger technique while ensuring reliable positioning and preventing inadvertent injury
Solution Approach 2:
The stop-movement device is designed to automatically maintain the puncture device in the correct position without requiring continuous manual intervention. The stop member self-activates to prevent movement, allowing the system to serve itself rather than requiring the operator to constantly monitor and adjust positioning with their fingers
2Productivity
If the two-finger technique is used to handle the puncture device, then the device can be manipulated, but it is awkward to execute and wastes valuable procedural time
Solution Approach 1:
The stop-movement device acts as a mediator that simplifies the interaction between the operator and the puncture device. By providing a fixed stop member, it eliminates the complex two-finger manipulation technique, allowing for faster and more efficient procedural execution without sacrificing control
Solution Approach 2:
The stop-movement device is pre-configured with the stop member in position before the procedure begins. This preliminary setup eliminates the need for time-consuming manual positioning techniques during the actual procedure, thereby improving productivity and procedural efficiency
3Reliability
If manual positioning is used to maintain the puncture device in place, then the device can be held stationary, but inadvertent puncture of the fossa ovalis and/or unwanted damage to other cardiac structures may occur
Solution Approach 1:
The stop-movement device serves as a safety intermediary by introducing a physical stop member that prevents the puncture device from moving beyond a safe position. This mechanical barrier eliminates reliance on manual dexterity and provides consistent protection against inadvertent puncture of the fossa ovalis and damage to other cardiac structures
Data Source
AI summary
A stop-movement device is configured to be mounted to a first elongated medical assembly and a second elongated medical assembly. The stop-movement device has a body configured to stop, at least in part, relative movement between the second elongated medical assembly and the first elongated medical assembly.