Remote Dialysis Drain System with Sensors for Quiet Fluid Control
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Solution Overview
Problem
Conventional dialysis systems, particularly peritoneal dialysis, are noisy and cumbersome due to the use of mechanical pumps and heavy, bulky drain bags, disrupting patient sleep and mobility during overnight treatments.
Innovation Solution
A medical drain system with a remote liquid pump and fluid sensors, including ultrasonic and counter-based sensors, to manage fluid flow and volume remotely, allowing for quiet and portable dialysis without the need for adjacent mechanical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If mechanical pumps are used for fluid drainage in peritoneal dialysis, then fluid flow control is improved, but noise level increases and patient sleep is disrupted
Solution Approach 1:
The pump is extracted from the immediate patient area and placed in a remote location. The system uses a remote pump connected via tubing to drain fluid from the patient's peritoneal cavity, separating the noise-generating component from the patient's sleeping area while maintaining effective fluid flow control.
Solution Approach 2:
The system replaces traditional mechanical pump-based drainage with a hybrid approach using gravity assistance and electronic control. The remote pump provides supplemental pumping power when needed while allowing gravity to handle much of the fluid flow, reducing mechanical noise in the patient's vicinity.
2Quantity of substance
If heavy drain bags are used to collect spent dialysis fluid, then fluid collection capacity is improved, but patient mobility and ease of operation deteriorate
Solution Approach 1:
The collection bag is extracted from the patient's immediate environment and placed in a remote location. The system allows the bag to be positioned far from the patient, eliminating the need for the patient to carry or manually manage heavy bags during mobility activities.
Solution Approach 2:
The system enables automatic or semi-automatic draining of the collection bag without requiring patient intervention. The remote pump can automatically empty the collection bag into a drain or receptacle, eliminating the manual lifting and emptying operations that previously required patient effort.
3Quantity of substance
If large-volume drain bags are used for overnight treatment, then fluid storage capacity is improved, but device bulk and portability worsen
Solution Approach 1:
The fluid management system is segmented into separate functional components: a remote pump unit, a collection bag, and a drain line. This segmentation allows the large-capacity bag to be positioned remotely while the compact pump unit handles active fluid management, reducing the bulk that must be moved with the patient.
Solution Approach 2:
The system transitions from a portable handheld model to a distributed spatial arrangement. The collection bag can be placed in a fixed remote location (vertical dimension), while the patient moves freely in the horizontal plane, effectively removing the volume constraint from the patient's mobility space.
4Ease of operation
If remote pump and sensors are used for fluid management, then patient comfort and mobility are improved, but system complexity increases
Solution Approach 1:
The remote pump system is designed to perform multiple functions: fluid drainage, volume measurement via integrated sensors, and automatic control based on fluid level detection. This multi-functionality consolidates what would otherwise require separate devices into a single integrated system, managing complexity while providing comprehensive fluid management.
Solution Approach 2:
The system incorporates fluid level sensors that provide continuous feedback to the remote pump control system. This automatic feedback loop allows the pump to adjust its operation based on real-time fluid volume in the collection bag, eliminating the need for manual monitoring and intervention by the patient, thereby improving comfort despite the added sensor complexity.
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
The system enables silent and convenient fluid management, reducing the bulk and noise of dialysis systems, enhancing patient comfort and mobility by using a remote pump and sensors to monitor and control fluid drainage.
Implementation Method 1
the at least one fluid sensor may include an ultrasonic sensor operably coupled to the drain line to detect fluid flow in the drain line
Implementation Method 2
the at least one fluid sensor may include a counter-based sensor operably coupled to the drain line to measure a volume of fluid flowing in the drain line, the counter-based sensor may be configured to detect bubbles in the fluid flowing through the drain line
Data Source
AI summary
Methods and drain systems for fluid flow monitoring and remote draining are described. In one example, the present disclosure describes a medical device drain system for monitoring, measuring, or otherwise managing the drainage of medical waste fluids, for instance, spent dialysate exiting a patient during a dialysis treatment. In some embodiments, the dialysis system may be a peritoneal dialysis (PD) system, including a gravity-based dialysis system, an APD system and/or a CAPD dialysis system. The drain system may include sensors for determining properties of the fluid drained from a patient. The drain system may include a remote liquid pump system configured to allow for pump-based draining of fluid from a patient to a drain located remote from the patient. The remote liquid pump system may be configured to receive at least one wireless signal to operate at a remote distance from the medical device. Other embodiments are described.