Neonatal Heel Blood Collection Device with Integrated Triggering
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Solution Overview
Problem
Current neonatal heel blood collection devices have complex structures due to numerous components, which complicates their design and functionality.
Innovation Solution
A simplified blood collection device with a shell, pivotally arranged blade seat, elastic component, and triggering portion, featuring a mechanism where the blade seat is prevented from pivoting by an abutting end and allowed to pivot based on elastic force, reducing the number of components and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heel blood collection device is designed with multiple components to achieve proper blade control and safety, then the reliability and safety of blood collection is improved, but the device complexity increases
Solution Approach 1:
The patent combines the blade seat, triggering portion, and elastic component into an integrated assembly where the blade seat pivots on a pivot shaft that is part of the triggering portion structure. The elastic component is directly mounted on the blade seat, eliminating the need for separate mounting mechanisms and reducing overall component count while maintaining safety functions.
Solution Approach 2:
The triggering portion serves multiple functions: it acts as the user interface for activation, provides the pivot shaft for blade seat rotation, and includes the abutting end that controls blade exposure. This multi-functional design reduces the number of separate components needed for safe blade operation.
2Ease of operation
If the blade seat is controlled to pivot only when needed through a triggering mechanism, then the ease of operation is improved, but the device complexity increases due to additional control components
Solution Approach 1:
The elastic component automatically returns the blade seat to its initial position after pivoting, eliminating the need for manual resetting or additional return mechanisms. The system self-regulates the blade exposure cycle through the elastic force storage and release, simplifying the triggering mechanism.
Solution Approach 2:
The abutting end acts as an intermediary element between the triggering portion and the blade seat. When the triggering portion is actuated, the abutting end engages with the blade seat to initiate pivoting, and disengages to allow automatic return, providing controlled operation without complex mechanisms.
3Manufacturing precision
If the blade is designed to be exposed only when the blade seat pivots, then the safety and precision of blood collection is improved, but the device complexity increases due to precise positioning requirements
Solution Approach 1:
The blade seat is designed to pivot dynamically around a pivot shaft rather than moving through complex linear or angular positioning mechanisms. This simple rotational movement around a fixed axis provides precise blade exposure control while minimizing the complexity of the positioning system.
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 device achieves a simple structure with fewer components, facilitating controlled blood collection operations through a single triggering mechanism, enhancing usability and efficiency.
Implementation Method 1
an elastic component, arranged in the accommodating cavity, wherein one end of which is connected to the shell, and the other end of which is connected to the blade seat to provide an elastic force for pivoting the blade seat
Data Source
AI summary
The present disclosure relates to a blood collection device, including: a shell; a blade seat, arranged in the shell; an elastic component for providing an elastic force for pivoting the blade seat; a triggering portion, including an operating end and an abutting end, wherein the triggering portion has a first position and a second position for pivoting, the operating end extends to the outside of the shell, the abutting end is located in the shell, based on the operation of the operating end, the triggering portion is suitable for pivoting from the first position that prevents the blade seat from pivoting to the second position that allows the blade seat to pivot based on the elastic force of the elastic component, wherein: a cooperation column is arranged in the shell and is located at the upper side of the triggering portion spaced from the triggering portion; and an elastic arm is connected to the upper side of the triggering portion, the end part of the elastic arm includes a blocking portion, the end part of the elastic arm is suitable for being located on one side of the cooperation column when the triggering portion is at the first position, and is located on the other side of the cooperation column when the triggering portion pivots from the first position to the second position, and the blocking portion provides resistance for the end part of the elastic arm while moving from one side of the cooperation column to the other side.