Peristaltic Pump Tube Fixation and Pressure Regulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current drainage methods for excess body fluid from medical settings are either time-consuming and require constant human attendance for hand pumping, or they use bulky, limited, and potentially hazardous equipment that provides inconsistent or unsafe suction pressures, especially for peristaltic fluid movement.
Innovation Solution
A drainage apparatus comprising a peristaltic pump device with a flexible tube and holding means, along with a regulator to control peristaltic suction pressure, allowing for efficient and controlled peristaltic fluid movement and collection, including a kit with a rotatable peristaltic mechanism and fixation means for secure tubing positioning, and a collection unit for fluid properties measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hand pumping is used to achieve peristaltic movement, then gentle and steady fluid drainage is achieved, but it is time consuming and requires constant human attendance
Solution Approach 1:
The peristaltic pump is designed to automatically perform the pumping action without requiring manual operation. The pump mechanism self-regulates the fluid movement through its rotating rollers that compress and release the flexible tube, creating peristaltic waves that move fluid gently and steadily without human intervention.
Solution Approach 2:
The manual mechanical hand pumping action is replaced with an automated peristaltic pump mechanism. The pump uses a motor-driven rotating assembly with rollers that sequentially compress the flexible tube, replacing the need for manual squeezing while maintaining the gentle peristaltic fluid movement.
2Reliability
If plastic vacuum suction bottles are used, then drainage is achieved, but they are bulky and cause storage, operational and shipping difficulties
Solution Approach 1:
The drainage system is divided into separate modular components: a compact peristaltic pump unit and a separate collection bag. This segmentation allows the pump to be small and portable while the collection bag can be sized appropriately, eliminating the need for bulky pre-assembled vacuum bottles and improving storage and shipping efficiency.
3Reliability
If wall suction is used, then drainage is achieved, but it creates greater suction forces than what is safe for normal drainage procedure
Solution Approach 1:
The peristaltic pump provides dynamic and adjustable suction forces through its regulator, allowing the suction pressure to be optimized for safe and effective drainage. The pump's rotating rollers create controlled compression zones that can be adjusted to deliver gentle, regulated suction forces appropriate for patient comfort and safety, unlike the fixed high-force wall suction.
Solution Approach 2:
The suction pressure parameter is made variable and controllable through the pump's regulator mechanism. This allows the suction force to be adjusted to safe and appropriate levels for different drainage needs, preventing the harmful effect of excessive suction forces while maintaining effective drainage capability.
4Reliability
If pre-assembled vacuumed bottles are used, then drainage is achieved, but they have inadequate suction and are limited in size necessitating frequent changes
Solution Approach 1:
The peristaltic pump provides continuous and consistent suction pressure throughout the drainage procedure through its motor-driven rotating mechanism. This eliminates the need for frequent changes of collection bags that occur with limited-capacity vacuum bottles, as the pump can maintain adequate suction pressure for extended periods with a single larger collection bag.
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
Enables consistent and controlled peristaltic fluid drainage with reduced manual effort, safer suction pressures, and efficient fluid collection, while allowing for measurement of fluid properties like pH and lactate, improving operational efficiency and safety in medical settings.
Implementation Method 1
Peristaltic pumping may be performed in a number of ways including, but not exclusively, by hand pump or with the use of a peristaltic pump
Data Source
AI summary
A body drainage system for draining fluid from a body cavity of a patient, the body cavity being provided with an access port, wherein the system comprises -a peristaltic pump mechanism (2), -a housing (1) for housing at least a portion of the peristaltic pump mechanism, -a flexible tube unit (3, 6, 7) configured to be connected at an access port end to the patient access port, and at a collection unit end to a collection unit (8), -a cover for covering movable parts of the peristaltic pump mechanism (2) -a regulator unit configured to regulate a rotational speed of the peristaltic pump mechanism, wherein the flexible tube unit (3, 6, 7) is configured to form a loop suitable to be placed in one way only at peristaltic pump mechanism making it possible for the peristaltic mechanism to compress a pump portion (3) of the flexible tube unit (3, 6, 7) repeatedly such that pumping occurs in a desired direction.