Luer Taper Cap With Volume-Displacing Seal for Low Dead Space
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Solution Overview
Problem
Current intravitreal injection devices are complex, time-consuming, and increase the risk of complications due to user error and infection, lacking features for safe, accurate, and atraumatic drug delivery into the eye.
Innovation Solution
Integrated devices with ergonomic design, including a housing, conduit, actuation mechanism, and resistance components, allowing for one-handed operation to minimize trauma and complications during drug delivery into the eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-component systems are used for intravitreal injection, then the device can provide multiple functions (exposing injection site, stabilizing against sclera, controlling angle and depth), but the device complexity increases and setup time becomes longer
Solution Approach 1:
The patent combines multiple previously separate components (injection device, exposing device, stabilizing device, and angle/depth control device) into a single integrated intravitreal injection device. This merging maintains all necessary functional capabilities while reducing device complexity and setup time by eliminating the need to assemble and coordinate multiple separate components.
Solution Approach 2:
The integrated device is designed to perform multiple functions simultaneously: exposing the injection site, stabilizing against the sclera, controlling injection angle and depth, and delivering the injection. This multi-functionality approach allows a single device to replace several specialized devices, improving versatility without proportionally increasing complexity.
2Measurement precision
If multi-component systems with multiple manipulation steps are used, then comprehensive control over injection parameters is achieved, but user error risk increases due to the need to manipulate many components
Solution Approach 1:
By merging all control mechanisms for injection parameters into a single integrated device with unified operation, the patent reduces the number of separate manipulation steps required. The device maintains precise control over injection parameters through integrated design, allowing comprehensive parameter control with fewer operational steps and reduced user error risk.
3Productivity
If commercially available intravitreal injection devices are used, then basic injection function is provided, but features for safe and accurate delivery (exposing site, stabilizing, controlling angle/depth) are lacking
Solution Approach 1:
The patent integrates safety and accuracy enhancement features (site exposing mechanism, stabilizing component, angle and depth control) directly into the injection delivery system. This integration ensures that safe and accurate delivery features work in coordination with the injection function, improving reliability without compromising productivity.
Data Source
AI summary
Caps and other luer taper medical devices having a volume displacing protrusion are described. The volume displacing protrusion can extend in an axial direction away from an end wall inside the female hub and be configured to create a seal that can be substantially airtight with a distal end of a syringe that is engaged with the cap or other luer taper medical device. The volume displacing protrusion of the cap or other luer taper medical device can create a seal with a distal end of a syringe before an outside surface of the syringe tip creates a seal with the luer taper of the female hub.