Pivotable Peristaltic Pump Unit for Easier Infusion Tube Loading
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Solution Overview
Problem
Existing infusion pumps face difficulties in handling the insertion of infusion tubes due to the limited space and pressure exerted by the peristaltic system on the infusion-tube receiving portion.
Innovation Solution
The infusion pump incorporates a pivoting mechanism that allows the peristaltic pump unit to pivot backward into the pump housing when the front lid is open, enabling easy insertion of the infusion tube, and is coupled to the front lid via a transmission or an electric drive with a sensor to control the pivoting movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the peristaltic system is positioned in the front lid area to enable easy infusion tube insertion, then the ease of operation is improved, but the pumping function cannot be performed due to lack of pressure application space
Solution Approach 1:
The peristaltic system is made dynamically movable through a pivoting mechanism that allows it to switch between a retracted position (when the front lid is open) enabling easy infusion tube insertion, and an advanced position (when the front lid is closed) enabling effective pumping action. This dynamic repositioning resolves the contradiction between ease of operation and pumping reliability.
2Productivity
If the peristaltic system presses against the infusion tube receiving portion to enable pumping, then the pumping efficiency is improved, but the ease of operation deteriorates due to difficult infusion tube insertion
Solution Approach 1:
The peristaltic system's position is dynamically adjusted based on the front lid state. When the front lid is open for tube insertion, the system automatically retracts to avoid pressing against the receiving portion, making insertion easy. When the front lid closes, the system advances to press against the tube for efficient pumping, thus resolving the contradiction between productivity and ease of operation.
3Force
If the peristaltic system is positioned forward to apply pressure on the infusion tube, then the pumping force is improved, but the device complexity increases due to the need for pivoting mechanism
Solution Approach 1:
The pivoting mechanism is merged with the existing front lid opening/closing operation. The same mechanical motion of opening and closing the front lid simultaneously performs two functions: protecting the infusion tube and positioning the peristaltic system for pumping. This integration minimizes additional complexity while achieving the desired pumping force.
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
Facilitates easy and efficient insertion of the infusion tube by avoiding interference from the peristaltic system during the insertion process, improving handling and usability of the infusion pump.
Implementation Method 1
such an infusion pump usually uses a system based on linear peristalsis, which generates an essentially uniform flow of the infusion solution with low pulsation and variable strength
Implementation Method 2
a pivoting mechanism which is functionally, in particular mechanically or electronically/electrically, connected to the front lid so as to pivot the peristaltic pump unit backward into the pump housing
Data Source
AI summary
A linear peristaltic infusion pump has a pump housing to which a front lid is pivotably hinged to open and close the front lid. A peristaltic pump unit is pivotably received in the pump housing. A pivoting mechanism is functionally connected to the front lid to pivot the peristaltic pump unit backward into the pump housing when the front lid is open, and to pivot the peristaltic pump unit forward and away from the pump housing when the front lid is closed.