Syringe Protector with Toothed Clamping and Nested Guard
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Solution Overview
Problem
Conventional syringe protectors are complex, not permanently affixed to syringes, and difficult to use during emergencies, posing a risk of accidental needle pricks and failing to meet mass production and compatibility criteria with conventional medical syringes.
Innovation Solution
A syringe protector design featuring a clamping member with a toothed surface, a needle guard with a toothed interior, and a retaining member with a protrusion, allowing for easy and permanent attachment to syringes without special tools, using a minimal number of parts and suitable for mass production, ensuring the needle is securely enclosed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional syringe protectors are used, then needle protection is provided, but the device complexity increases and permanent affixation is not achieved
Solution Approach 1:
The patent combines the protector body and cap into a single integrated unit that automatically engages with the syringe. The protector body includes an internal cavity that receives the syringe needle, while the cap rotates to engage with the syringe flange, creating a unified structure that simplifies the overall device while maintaining reliable needle protection.
Solution Approach 2:
The syringe is nested within the protector body cavity, with the needle extending through the protector body into the cap. This nested arrangement allows the smaller syringe component to be contained within the larger protector structure, achieving permanent affixation while maintaining a compact design that does not increase overall device complexity.
2Reliability
If conventional syringe protectors are used, then needle protection is provided, but ease of operation deteriorates during emergencies
Solution Approach 1:
The protector is designed to be pre-assembled with the syringe before use. The cap is positioned to rotate and engage with the syringe flange, and the protector body is shaped to automatically receive the syringe needle. This preliminary preparation eliminates the need for complex assembly operations during emergency situations, improving ease of operation while maintaining reliable needle protection.
3Reliability
If conventional syringe protectors are used, then needle protection is provided, but manufacturing cost increases
Solution Approach 1:
The protector is divided into two main segments: the protector body and the cap. The protector body includes an internal cavity and engagement features, while the cap includes a flange engagement mechanism. This segmentation allows each component to be manufactured separately using standard injection molding techniques, simplifying mass production while maintaining the reliability of needle protection through the integrated assembly.
Data Source
AI summary
A syringe protector. The syringe protector includes a clamping member, a guard member, and a retaining member. The clamping member being able to lockably engage the needle guard and allow the passage of a needle therethrough. Insertion of the clamping member into the guard member creates a locking interaction between the toothed surface of the clamping member and a complementary toothed or ribbed surface of the guard member. Further, the clamping member holds a retaining member which acts to secure a syringe body once the needle of the syringe enters the guard member.