Multi-Channel Blood Collection Device for Small Volume Sampling
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Solution Overview
Problem
Conventional blood sample collection techniques require high volumes of blood, making non-venous draws less favorable and increasing patient apprehension, while also adding complexity in separating samples for different processing methods.
Innovation Solution
A device with multiple sample collection channels and containers that allows for the accurate collection and separation of small blood volumes, enabling simultaneous or sequential filling of containers with different coatings to prevent clogging and contamination, and includes a method for introducing anti-coagulants to prevent clotting and facilitate sample processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If non-venous puncture is used to extract blood sample, then patient discomfort is reduced, but blood volume obtained is insufficient for conventional testing
Solution Approach 1:
The device divides the blood sample collection into multiple separate channels, each leading to a different container. This segmentation allows the limited blood volume from non-venous puncture to be efficiently distributed across multiple test containers, maximizing the utility of the small sample while maintaining patient comfort.
Solution Approach 2:
The device features a needle hub with multiple channels nested within a single puncture site. Multiple containers are arranged to receive samples from these nested channels, allowing comprehensive sample collection from a single minimally invasive puncture.
2Quantity of substance
If venipuncture is used to obtain sufficient blood volume, then blood volume requirement is met, but patient apprehension increases
Solution Approach 1:
By segmenting the sample collection into multiple channels from a single puncture, the device reduces the need for repeated or larger volume draws, thereby reducing patient apprehension while still obtaining sufficient total blood volume for multiple tests.
3Ease of operation
If traditional collection technique is used to separate blood samples into different containers, then sample separation is achieved, but process complexity increases
Solution Approach 1:
The device merges multiple sample collection functions into a single integrated unit. Multiple channels converge from one needle hub, and multiple containers are positioned to receive samples simultaneously or sequentially, eliminating the need for separate collection procedures and reducing operational complexity.
Solution Approach 2:
The needle hub serves multiple functions: it contains multiple channels for different sample types, provides a common entry point for the puncture, and facilitates distribution to various containers. This multi-functionality simplifies the overall sample separation process.
4Object-affected harmful factors
If small blood volume is collected from non-venous sites, then patient discomfort is reduced, but collection time increases
Solution Approach 1:
The device enables continuous sample collection across multiple channels simultaneously. As blood flows through the puncture site, it is continuously distributed to multiple containers through the parallel channels, maximizing the efficiency of the limited sample volume and reducing overall collection time.
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 efficient collection and processing of small blood volumes from non-venous sites with reduced complexity and patient discomfort, allowing for effective separation and analysis of bodily fluids.
Implementation Method 1
at least two of the channels are configured to simultaneously draw the fluid sample into each of the at least two sample collection channels via a first type of motive force
Implementation Method 2
the sample containers operably engagable to be in fluid communication with the collection channels, whereupon when fluid communication is established, the containers provide a second motive force different from the first motive force to move a majority of the bodily fluid sample from the channels into the containers
Implementation Method 3
one of the sample collection channels has an interior coating designed to mix with the fluid sample and another of the sample collection channels has another interior coating chemically different from said interior coating
Data Source
AI summary
Bodily fluid sample collection systems, devices, and method are provided. The device may comprise a first portion comprising at least a sample collection channel configured to draw the fluid sample into the sample collection channel via a first type of motive force. The sample collection device may include a second portion comprising a sample container for receiving the bodily fluid sample collected in the sample collection channel, the sample container operably engagable to be in fluid communication with the collection channel, whereupon when fluid communication is established, the container provides a second motive force different from the first motive force to move a majority of the bodily fluid sample from the channel into the container.