Medicinal Solution Discharge Assembly Locking Mechanism
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Solution Overview
Problem
Existing medical liquid injection devices face challenges in ensuring precise and stable injection of medical liquids, particularly for pediatric diabetic patients, due to issues with comfort, convenience, durability, and the need for low power operation.
Innovation Solution
A medical liquid discharge assembly and injection device that includes a driving part, a rotating part, a tube part made of flexible material, a pressure-applying part, and a locking part. The locking part fixes the position of the pressure-applying part, maintaining the tube part in a compressed state, thereby improving injection stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking part is added to fix the position of the pressure-applying part, then injection stability is improved, but device complexity increases
Solution Approach 1:
The locking part is designed to move between locked and unlocked positions, transitioning from a static to a dynamic structure. This allows the device to maintain simplicity when not in use while providing stability during injection through the movable locking mechanism that engages with the pressure-applying part.
Solution Approach 2:
The locking part utilizes the existing rotational movement of the pressure-applying part to automatically engage or disengage the locking mechanism. The structure leverages the natural operational cycles of the device, where rotation in one direction triggers locking while rotation in the opposite direction releases it, eliminating the need for separate control systems.
2Manufacturing precision
If the tube part is kept in a compressed state to prevent reflux, then injection precision is improved, but device complexity increases
Solution Approach 1:
The tube part is pre-compressed to a specific degree before injection begins, establishing the correct initial state for precise delivery. This preliminary compression ensures that the tube maintains adequate pressure to prevent reflux while allowing controlled dispensing, with the locking mechanism preserving this pre-set compression state throughout the injection process.
Solution Approach 2:
The system controls the compression parameter of the tube part by fixing its position through the locking mechanism. By maintaining a specific compression level rather than allowing variable compression, the device achieves precise and consistent injection without requiring complex active control systems to adjust compression dynamically.
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
The solution enhances the stability of medical liquid injection by maintaining the tube part in a compressed state, preventing under-injection or reflux of medical liquid, and ensuring consistent delivery of a set amount of medical liquid.
Implementation Method 1
a locking part configured to move in a preset direction, and to fix a position of the pressure-applying part by coming into contact with and supporting one surface of the pressure-applying part
Implementation Method 2
a pressure-applying part configured to come into contact with the rotating part, and to come into contact with and apply pressure to the tube part in response to the rotation of the rotating part
Data Source
AI summary
A medical liquid discharge assembly includes: a driving part configured to move in a preset direction, a rotating part configured to come into contact with the driving part, and to rotate in one direction in response to the movement of the driving part, a tube part disposed adjacent to the rotating part and including a flexible material, a pressure-applying part configured to come into contact with the rotating part, and to come into contact with and apply pressure to the tube part in response to the rotation of the rotating part, and a locking part configured to move in a preset direction, and to fix a position of the pressure-applying part by coming into contact with and supporting one surface of the pressure-applying part while the pressure-applying part applies pressure to the tube part.