Dropper With Elastic Portion For Blood Sampling
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Solution Overview
Problem
The existing methods for collecting blood samples in vacuum blood collection tubes often result in blood scattering when removing the stopper, leading to hygiene issues due to the strong force required for airtightness, which can cause blood to be dispersed and require additional cleaning and sterilization steps.
Innovation Solution
A method and tool involving a dropper with an elastically deformable portion and an insertion portion with a through-hole, allowing the sample to be transferred without removing the stopper, using a hollow needle to stab into the stopper and transfer the sample into the dropper's internal space, maintaining hygiene by preventing blood scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the stopper is strongly pressed into the sample storage portion to improve airtightness, then the sealing performance is improved, but a large force is required to pull out the stopper which causes blood scattering
Solution Approach 1:
The invention extracts the stopper removal function from the manual operation by introducing an automatic stopper remover mechanism that is integrated into the test apparatus. This mechanism automatically pulls out the stopper after blood collection, eliminating the need for manual stopper removal and preventing blood scattering that occurs when handlers pull the stopper by hand.
Solution Approach 2:
The test apparatus is designed to automatically perform the stopper removal action at the appropriate time after blood collection. The system prepares the stopper remover mechanism in advance and automatically activates it when needed, ensuring that the stopper is removed without manual intervention and preventing blood scattering before it can occur.
2Ease of operation
If manual stopper removal is performed, then the operation is simple, but blood scattering occurs requiring additional cleaning and sterilization
Solution Approach 1:
The test apparatus performs the stopper removal function automatically without requiring manual operation. The system uses its own integrated stopper remover mechanism to complete the task, making the process self-service and eliminating the need for handlers to manually remove stoppers, thereby preventing blood scattering and reducing cleaning requirements.
3Reliability
If the stopper is strongly pressed for airtightness, then the sealing is improved, but the complexity of stopper removal increases requiring special tools
Solution Approach 1:
The invention merges the stopper removal function with the test apparatus by integrating an automatic stopper remover mechanism directly into the device. This combination eliminates the need for separate manual tools or complex external mechanisms, as the stopper removal capability is built into the apparatus itself, maintaining simplicity while ensuring reliable airtightness.
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 solution effectively prevents blood scattering during sample collection, maintaining hygiene and simplifying the process by allowing blood to be taken without pulling out the stopper, thus eliminating the need for additional cleaning and sterilization, and enabling a cost-effective, disposable solution.
Implementation Method 1
The blood collected in the vacuum blood collection tube is subjected to a test... by stabbing a hollow needle into the stopper... the transfer of the sample is performed by inserting the insertion portion into a through-hole formed in the stopper by the stabbing of the hollow needle into the stopper
Implementation Method 2
which includes a volume changeable space defined by an elastically deformable portion having flexibility
Data Source
AI summary
A method for taking a sample includes drawing blood into a vacuum blood collection tube and transferring at least part of the blood from the vacuum blood collection tube to a sample storage space of a dropper. The vacuum blood collection tube includes a sample storage portion and a stopper sealing the sample storage portion, and the drawing is performed by stabbing a hollow needle into the stopper. The dropper includes and internal space at least part of which is the sample storage space for storing a sample and which includes a volume changeable space defined, by an elastically deformable portion having flexibility. The dropper further includes an insertion portion including a through-hole connected to the internal space, and the transfer of the sample is performed by inserting the insertion portion into a through- formed in the stopper by the stabbing of the hollow needle into the stopper.