Medicament Infusion Device Insertion Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional infusion pumps are susceptible to improvements, particularly in terms of user health and quality of life, as they face challenges in efficient medicament delivery and reduced frequency of subcutaneous access events.
Innovation Solution
The insertion assembly includes a frame with a tubular sidewall and a carrier that is axially movable, featuring protrusions that slide within slots, allowing for precise movement and reduced risk of tilting or binding during insertion and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional infusion pumps are used, then medicament delivery is achieved, but the frequency of subcutaneous access events is high and user quality of life is reduced
Solution Approach 1:
The device employs a dynamic insertion assembly that transitions between retracted and extended positions, enabling automated needle insertion and cannula deployment. This dynamic mechanism reduces manual intervention frequency and improves user quality of life while maintaining reliable medicament delivery through consistent automated operation
2Manufacturing precision
If the carrier is made axially movable within the frame, then insertion precision is improved, but the device complexity increases
Solution Approach 1:
The insertion assembly is segmented into distinct functional components: a frame, an axially movable carrier, and protrusions with slots. This segmentation allows the carrier to move independently along the axial direction with precise control through the slot-guided protrusions, achieving insertion precision while managing complexity through modular design
Solution Approach 2:
The protrusions with slots act as intermediary elements between the carrier and frame, providing guided axial movement. The slots constrain the protrusions to move only in the axial direction, ensuring insertion precision without requiring complex mechanical guidance systems
3Stability of the object's composition
If the protrusion height to width ratio is increased, then tilting and binding risk is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The protrusions are designed with an asymmetric height-to-width ratio greater than 1, where the height (axial dimension) exceeds the width (radial dimension). This asymmetric geometry provides greater stability against tilting and binding during axial movement, as the taller profile resists lateral deviation more effectively. The increased height-to-width ratio compensates for manufacturing tolerances by providing a more stable geometric constraint
Data Source
AI summary
The present technology includes, for example, a seal assembly for a medicament infusion device. The seal assembly can comprise an annular dock seal comprising an upper surface, a lower surface, a radially inner surface, a radially outer surface, and a through-hole extending between the radially outer and inner surfaces and defining a first fluid flow path. The seal assembly can comprise a seal housing at least partially surrounding the dock seal and having an upper flange, a lower flange, a side portion configured to contact at least a portion of the radially outer surface of the dock seal to define an annular channel between the side portion of the seal housing and the radially outer surface of the dock seal, and a second fluid flow path extending through the side portion such that the second fluid flow path is in fluid communication with the first fluid flow path.