Finger Blood Collection with Cyclic Compression and Distance Control
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Solution Overview
Problem
Existing blood collection apparatuses face challenges in ensuring stable and sufficient blood collection from finger tips due to individual differences in diathesis, leading to potential instability and insufficient blood amounts, even when using automated systems.
Innovation Solution
A blood collection apparatus with a puncture site holding mechanism, compression mechanism, and driving mechanism that varies the relative distance between the puncture site and the container by vertically moving the holding mechanisms to promote stable blood collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automated blood collection is performed using a fixed apparatus, then ease of operation is improved, but blood collection stability and sufficiency deteriorate due to individual differences in diathesis
Solution Approach 1:
The apparatus employs dynamic adjustment mechanisms that allow real-time modification of compression force and duration based on individual subject characteristics. The control unit adjusts operational parameters dynamically during the blood collection process to accommodate variations in diathesis, ensuring reliable blood collection while maintaining ease of operation.
Solution Approach 2:
The system changes operational parameters such as compression force, compression duration, and puncture depth based on detected blood flow characteristics. By monitoring blood collection rate and adjusting parameters accordingly, the apparatus ensures sufficient blood collection across different subjects without requiring complex manual intervention.
2Quantity of substance
If compression force is increased to secure blood collection amount, then blood collection amount is improved, but pain and tissue damage worsen
Solution Approach 1:
The apparatus applies periodic compression and release cycles rather than continuous high-force compression. This rhythmic action promotes blood flow to the puncture site in waves, ensuring adequate blood collection while allowing tissue recovery between cycles, thereby reducing pain and damage.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor blood collection rate and tissue response in real-time. Based on this feedback, the control unit dynamically adjusts compression force to maintain optimal blood flow without exceeding tissue tolerance thresholds, balancing blood collection amount with patient comfort and safety.
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 apparatus ensures stable and safe blood collection from any subject by actively promoting bleeding and preventing coagulation through repeated compression and release, enhancing the blood collection amount and efficiency.
Implementation Method 1
a compression mechanism for performing an operation of compressing and releasing the puncture site when blood is collected from the puncture site
Data Source
AI summary
Provided is a blood collection apparatus with which blood can be stably collected from a finger tip of any subject while ensuring safety and ease. This blood collection apparatus is provided with: a puncture site holding mechanism for holding a puncture site; a compression mechanism for performing an operation of compressing and releasing the puncture site when blood is collected from the puncture site; a container holding mechanism for holding a container for collecting blood flowing from a puncture wound at the puncture site; and a driving mechanism for varying the relative distance between the puncture site and the container by vertically moving the puncture site holding mechanism, the container holding mechanism, or the container held by the container holding mechanism when blood flowing from the puncture wound is collected.