Syringe Pump Resilient Bumper and Tubing Retention
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Solution Overview
Problem
Existing syringe pumps are complex, lack flexibility, and pose safety risks due to potential tubing separation and unintentional medicament delivery, necessitating improved ease of use and enhanced safety features.
Innovation Solution
A syringe pump design with a retention passage for infusion tubing and a resilient bumper to prevent tubing separation, along with a clutch assembly for one-handed manipulation and a resilient bumper to absorb external forces, inhibiting unintended medicament delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pre-filled syringe is mechanically driven under microprocessor control to deliver medicament, then accurate and continuous infusion is achieved, but the device becomes complex and difficult to operate
Solution Approach 1:
The patent extracts the syringe from the pump housing, allowing it to be removed and replaced by the user without requiring complex internal mechanisms. The syringe is held in place during operation but can be easily taken out for refilling or replacement, simplifying the overall device structure while maintaining infusion accuracy through external syringe loading.
Solution Approach 2:
The system enables self-service operation where the user can independently load, remove, and replace syringes without requiring complex automated mechanisms or specialized training. The simplified mechanical interface allows patients or caregivers to perform syringe changes autonomously, reducing device complexity while maintaining reliable infusion function.
2Ease of manufacture
If the syringe pump is designed with fixed internal components, then manufacturing is simplified, but flexibility and ease of use are reduced
Solution Approach 1:
The pump is divided into distinct modular components: a fixed pump housing with simplified internal mechanisms, and a removable syringe assembly. This segmentation allows the fixed portion to be manufactured simply while the removable syringe provides operational flexibility, enabling users to easily load different syringes without complicating the manufacturing of the main pump body.
3Ease of operation
If the infusion tubing is freely connected to the syringe, then ease of connection is improved, but unwanted separation occurs during use
Solution Approach 1:
The system performs preliminary action by pre-configuring the syringe pump with retention features (such as channels or grooves) that automatically engage with the infusion tubing during the connection process. This preliminary structural preparation ensures that once connected, the tubing is retained securely without requiring complex locking mechanisms, maintaining both ease of connection and stability during use.
4Strength
If external forces are applied to the syringe pump, then the pump structure must be robust, but unintentional medicament delivery may occur
Solution Approach 1:
The system applies beforehand cushioning by incorporating a resilient bumper or shock-absorbing element within the pump structure. This cushioning element absorbs external forces such as bumps or drops before they can reach the critical syringe and plunger mechanisms, preventing unintentional medicament delivery while maintaining the structural strength needed for robust operation.
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
Enhances flexibility, ease of use, and patient safety by preventing tubing separation and unintended medicament delivery, ensuring reliable and controlled infusion.
Implementation Method 1
a resilient bumper configured to absorb external forces acting upon the plunger driver assembly to inhibit unintentional delivery of medicament
Implementation Method 2
an infusion tube retention passage defined by a channel shaped and sized to force an axis of infusion tubing entering the channel in proximity to the syringe to be offset from an axis of the infusion tubing exiting the channel
Data Source
AI summary
A syringe pump configured to at least partially surround a syringe loaded into the pump. The syringe pump including a syringe pump housing defining a syringe receptacle shaped and sized to accept loading of the syringe, a plunger driver assembly configured to manipulate a plunger of a syringe loaded into the syringe pump, and a syringe housing including a syringe barrel shield pivotably coupled to the syringe pump housing configured to at least partially enclose a syringe loaded into the syringe pump within the syringe receptacle, and a syringe plunger tray and lid assembly operably coupled to the syringe pump housing and configured to at least partially enclose a portion of the plunger driver assembly.