Syringe Actuating Clips for One-Handed Medicament Control
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Solution Overview
Problem
Existing medical syringes lack ergonomic designs that allow for one-handed operation with precise control over the ejection of medicament volumes.
Innovation Solution
The development of syringe actuating clips that attach to the syringe plunger, featuring an elongated clip shaft and a syringe attachment head with a frame and flanges, enabling ergonomic one-handed operation and precise control over medicament ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional syringe designs are used, then the structure is simple, but one-handed operation with precise control is difficult
Solution Approach 1:
The syringe is divided into functional modules: the plunger assembly (barrel, plunger, thumb flange) and the actuating clip assembly (clip shaft, attachment head, finger flange). This segmentation allows the operator to grip the clip shaft with one hand while the attachment head engages the thumb flange, enabling precise control without requiring two hands. The modular design adds functionality without overly complicating the overall structure.
Solution Approach 2:
The actuating clip serves as an intermediary mechanism between the operator's hand and the plunger. The finger flange on the clip shaft provides a gripping surface for the operator, while the attachment head transfers this input to the thumb flange on the plunger. This intermediary structure enables ergonomic one-handed operation by mediating the force transmission from finger to plunger.
2Measurement precision
If conventional syringe designs are used, then the structure is simple, but precise control over medicament ejection is limited
Solution Approach 1:
The actuating clip introduces dynamic control capability to the syringe system. The clip shaft can be gripped and manipulated with varying degrees of force and precision, allowing the operator to control the plunger movement and medicament ejection dynamically. The spaced-apart flanges create a lever arm that amplifies fine motor control, enabling precise adjustment of medicament volume during ejection.
Solution Approach 2:
The attachment head is disposed at an angle with respect to the clip shaft, creating a multi-dimensional geometry that provides both structural stability and operational leverage. This angular arrangement adds a dimensional aspect to the force application, allowing the operator to apply force at optimal angles for precise control over plunger movement and medicament ejection.
3Ease of operation
If the attachment head frame and flange are spaced apart, then ergonomic gripping is enabled, but the structure becomes more complex
Solution Approach 1:
The attachment head features asymmetric geometry with a frame disposed at an angle to the clip shaft and flanges positioned at specific spaced intervals. This asymmetric arrangement creates an ergonomic grip configuration where the finger flange and attachment head frame form a comfortable handhold, while the angular disposition optimizes force transmission to the thumb flange.
Solution Approach 2:
The flanges are configured with curved surfaces that conform to the natural shape of fingers and thumbs. The finger flange on the clip shaft and the thumb flange on the plunger both feature rounded geometries that facilitate ergonomic gripping and comfortable operation, reducing stress on the operator's hand during use.
Data Source
AI summary
A syringe actuating clip configured for attachment to a medical syringe having a syringe barrel, a syringe plunger slidable in the syringe barrel and a thumb flange on the syringe plunger may include an elongated clip shaft having a first shaft end and a second shaft end. A syringe attachment head may include a syringe attachment head frame on the clip shaft at the first shaft end. The syringe attachment head frame may be disposed at a head angle with respect to the clip shaft. At least one head flange may be disposed adjacent and spaced-apart to the syringe attachment head frame. Accordingly, the syringe attachment head frame and the head flange of the syringe attachment head may be suitably sized and configured to receive and securely engage the thumb flange on the syringe plunger therebetween as the clip shaft extends adjacent to the syringe barrel. Medical syringe and syringe actuating clips are also disclosed.