Integrated Blood Sampler with Centrifugal Separation and Injection
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Solution Overview
Problem
Current blood sampling and PRP preparation procedures are complex, wasteful of medical supplies, and inefficient due to the need for multiple syringes, needles, and test tubes, leading to contamination and suboptimal platelet concentration during centrifugation and injection.
Innovation Solution
A blood sampler comprising a hollow transparent barrel, piston, and plunger that integrates blood collection, centrifugation, and injection functions, allowing for single-container use for blood sample collection, separation, and platelet-rich plasma injection, reducing the need for multiple medical supplies and simplifying procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple syringes and needles are used for blood collection and injection, then the separation and injection process can be completed, but the complexity of the procedure increases and medical supplies are wasted
Solution Approach 1:
The patent combines multiple separate medical devices (collection syringe, test tube, injection syringe, needles) into a single integrated blood sampler device. The device integrates the collection chamber, separation chamber, and injection mechanism into one unified structure, eliminating the need for multiple separate components and reducing procedural complexity.
Solution Approach 2:
The blood sampler is designed to perform multiple functions within a single device: it can collect blood samples, separate components via centrifugation, store separated components, and facilitate injection. This multi-functional design replaces the traditional multi-device workflow with a single versatile instrument.
2Productivity
If a separate injection syringe is used to extract platelet-rich plasma from the test tube, then accurate injection can be achieved, but the procedure becomes more complex and time-consuming
Solution Approach 1:
The injection syringe functionality is integrated directly into the blood sampler device. The plunger mechanism serves dual purposes: it drives blood into the collection chamber during sampling and later drives platelet-rich plasma out of the separation chamber during injection, eliminating the need for a separate injection syringe and reducing procedure time.
3Manufacturing precision
If the blood injection needle is not long enough to reach platelet-rich plasma through the serum layer, then the injection can be performed, but the platelet concentration is diluted and treatment effectiveness is reduced
Solution Approach 1:
The blood sampler separates the collection chamber and separation chamber into distinct sections with different functions. The separation chamber is designed with a specific geometry that allows the platelet-rich plasma to be accessed at a shorter depth, eliminating the need for long needles while maintaining accurate platelet concentration delivery.
Solution Approach 2:
The separation chamber acts as an intermediary structure between the collection chamber and the injection point. It facilitates the separation of blood components and positions the platelet-rich plasma at an accessible location, serving as a mediator that enables accurate delivery without requiring a long needle to penetrate through excessive serum layers.
4Reliability
If disposable medical supplies are used for each procedure, then contamination is prevented, but environmental pollution and waste increase
Solution Approach 1:
By integrating multiple functions into a single disposable unit, the patent reduces the total number of disposable items required. The unified blood sampler replaces multiple separate disposable components (collection syringe, test tube, injection syringe, needles), thereby reducing medical waste while maintaining contamination prevention through single-use design.
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
This integrated device simplifies medical procedures, reduces waste, and ensures accurate platelet-rich plasma concentration by allowing for direct collection and injection from a single container, thereby streamlining operations and conserving medical equipment.
Implementation Method 1
The platelets are separated from other blood cells through a centrifugation process
Implementation Method 2
The plunger is adapted for moving the piston relative to the hollow transparent barrel
Data Source
AI summary
A blood sampler includes a hollow transparent barrel including a reduced collection portion located at a front end thereof and terminating in a reduced coupling portion, an outlet defined in the coupling portion and a plurality of ribs spaced around and raised from an inside wall near an opposing rear end thereof, a piston axially movably fitted into the hollow transparent barrel and having a screw hole and peripheral ribs, a cap detachably capped onto the collection portion to seal the outlet, and a plunger having a screw rod located at a front end thereof and threaded into the screw hole of the piston for allowing movement the piston with the plunger. The hollow transparent barrel enables collecting blood sample from a patient, separating the collected blood sample into platelet-rich plasma, platelet-rich plasma and serum in a centrifuge and injecting the collected platelet-rich plasma into a patient body.