Resilient Retaining Members for Self-Orienting Pressure Jacket Engagement
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Solution Overview
Problem
Current medical fluid injectors lack a user-friendly connection interface for engaging and disengaging pressure jackets with syringe caps, making the process cumbersome and inefficient.
Innovation Solution
A syringe cap with alignment members and resiliently deflectable retaining members that guide and secure the pressure jacket, allowing for self-orienting alignment and easy engagement/disengagement without specific orientation, using a combination of alignment surfaces and radially deflectable retaining members to facilitate the connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional connection interface is used for engaging pressure jacket with syringe cap, then the connection can be established, but the engagement and disengagement process is cumbersome and time-consuming
Solution Approach 1:
The connection interface enables self-orienting alignment through alignment members that automatically guide the pressure jacket and syringe cap into correct alignment during engagement, eliminating the need for manual orientation adjustments. The resiliently deflectable retaining members automatically engage with the pressure jacket, providing self-locking functionality that simplifies the engagement process and enables quick disengagement without complex manipulation.
2Productivity
If alignment members and resiliently deflectable retaining members are added to the syringe cap, then engagement becomes easier and faster, but the device complexity increases
Solution Approach 1:
The syringe cap is divided into functional segments: alignment members for orientation guidance, resiliently deflectable retaining members for secure engagement, and a pressure jacket interface portion. This segmentation allows each component to perform its specific function efficiently while maintaining overall simplicity. The modular design enables easy manufacturing and assembly.
Solution Approach 2:
The retaining members are designed with resilient properties that allow them to deflect under load and return to their original position, providing automatic engagement and secure locking. This parameter change from rigid to resilient structure enables faster engagement without requiring complex actuation mechanisms, as the resilient members naturally respond to the engagement force.
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 quick and effortless engagement and disengagement of the pressure jacket with the syringe cap, improving user experience and operational efficiency in medical fluid injection procedures.
Implementation Method 1
at least one resiliently deflectable retaining member (680) protruding from the syringe cap (220)
Data Source
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Figure 3A
AI summary
A pressure jacket for use with a fluid injector may have a pressure jacket body having a proximal end, a distal end, and a circumferential sidewall extending between the proximal end and the distal end along a pressure jacket longitudinal axis. The pressure jacket may further have at least one resiliently deflectable retaining member having a first segment attached to the pressure jacket body and a second segment protruding from the first segment toward the distal end of the pressure jacket body and deflectable relative to the first segment. The pressure jacket may further have at least one actuation member associated with the at least one resiliently deflectable retaining member. The at least one actuation member may interact with a housing of the fluid injector when the pressure jacket is connected to the housing to deflect the at least one resiliently deflectable retaining member upon rotation of the pressure jacket.