Syringe Rear Support Surface for Dispensing Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing syringe designs are unstable during use, making it difficult to administer substances accurately and comfortably, especially in veterinary applications like intramammary injections, and are challenging to hold firmly, leading to contamination risks and user frustration due to slippery caps.
Innovation Solution
A syringe with an elongated plunger and a cap removal device featuring a leveragable portion and support system that allows for stable grip and easy cap removal, using a gripping section and a cap with a retaining assembly to maintain stability and prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the syringe is held with fingers on finger grips and thumb on plunger, then the syringe can be operated, but the syringe becomes unstable during dispensing because the dispensing end is unsupported
Solution Approach 1:
The invention introduces a support surface at the rear end of the barrel that extends perpendicular to the longitudinal axis, creating a new dimensional plane for support. This allows the user to rest the support surface on a stable platform (finger grips or palm), transferring the syringe from a purely axial grip to a multi-dimensional support structure that stabilizes the rear end during dispensing.
Solution Approach 2:
The syringe is divided into distinct functional zones: a gripping section on the barrel for finger placement, a support surface at the rear end for additional stabilization, and the plunger for actuation. This segmentation allows each part to serve its specific function - the gripping section provides control, the support surface provides stability, and the plunger provides actuation force.
2Ease of operation
If the cap is pushed off with thumb in sideways movement, then the cap can be removed, but the syringe tip may be damaged or contaminated
Solution Approach 1:
A dedicated cap removal device is introduced as an intermediary tool between the user and the cap. This device features a receiving recess that interfaces with the cap's leveragable portion, allowing cap removal through a controlled lifting motion rather than direct manual manipulation. The device mediates the interaction, preventing direct contact between the user's thumb and the syringe tip.
Solution Approach 2:
The cap is designed with an integrated leveragable portion that enables self-service removal. The cap's own structure provides the mechanical advantage needed for removal - the leveragable portion acts as a built-in handle that can be engaged by the cap removal device or fingers to lift the cap off without requiring sideways pushing motions that risk tip damage.
3Ease of operation
If the cap is gripped in teeth to remove it, then the cap can be removed, but this method is unsanitary and frustrating
Solution Approach 1:
The cap removal device serves as a sanitary intermediary that eliminates the need for oral contact with the cap. The device's receiving recess is designed to interface with the cap's leveragable portion, allowing cap removal through a controlled mechanical lifting motion that maintains hygiene and prevents contamination.
Solution Approach 2:
The cap's leveragable portion is designed to be engaged by a tool or fingers for lifting removal, making the cap self-sufficient for its own removal without requiring the user to use their teeth. The cap's own structure provides the mechanical advantage needed for clean, sanitary removal.
4Object-affected harmful factors
If the syringe is held firmly to prevent contamination, then contamination is reduced, but the syringe becomes difficult to operate comfortably
Solution Approach 1:
The syringe is divided into distinct functional zones: a gripping section on the barrel for finger placement, a support surface at the rear end for additional stabilization, and the plunger for actuation. This segmentation allows each part to serve its specific function - the gripping section provides control, the support surface provides stability, and the plunger provides actuation force.
Solution Approach 2:
The support surface creates a new dimensional plane for support, allowing the user to rest the syringe on a stable platform. This multi-dimensional support structure stabilizes the rear end during dispensing, preventing the syringe from brushing against surrounding surfaces while maintaining operational comfort through proper force distribution.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A substance delivery system (10) may include a substance delivery device, a cap (34), and a removal device (not shown). The system may be designed for ease of use. The substance delivery device may include an elongated member (14) adapted to interface with a body. The substance delivery device may be designed allowing for a predetermined separation distance between the end (22) of the body of the device and the end (18) of the elongated member used to drive substance from the device.