Intraosseous Drill With Retractable Stylet And Automatic Closure
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Solution Overview
Problem
Current intraosseous devices face challenges such as manual operation difficulties, lack of control, potential for contamination, and inadequate safety features, particularly in emergency situations, due to the need for separate components and manual handling of sharp stylets.
Innovation Solution
A portable, disposable drill/stylet combination with a permanently attached stylet and retractable mechanism, featuring a Luer lock cannula with automatic closure and pressure sensor for precise bone entry, ensuring passive safety and ease of use with automatic stylet retraction and cannula retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual screwing in of cannula and stylet is used, then device simplicity is improved, but ease of operation deteriorates due to difficulty in controlling depth and location
Solution Approach 1:
The patent replaces manual mechanical screwing operations with an automated drill mechanism that controls depth and location precisely. The drill component with motorized rotation and depth control eliminates the need for manual gauge-taking and depth control, directly resolving the contradiction between device simplicity and ease of operation.
2Ease of repair
If separate components are used for drill and stylet, then ease of repair is improved, but device complexity worsens due to need for multiple separate parts
Solution Approach 1:
The patent merges the drill component and stylet into a single integrated unit where the stylet is permanently attached to the drill. This integration eliminates the need for separate handling of multiple components, reducing device complexity while maintaining the ability to replace the entire assembly if needed, thus resolving the contradiction between ease of repair and device complexity.
3Ease of operation
If stylet remains exposed after drilling, then ease of operation is improved for removal, but object-generated harmful factors worsen due to contamination risk
Solution Approach 1:
The patent implements automatic stylet retraction that activates immediately after drilling completion, before the user can manually handle the stylet. This preliminary protective action automatically retracts the stylet into the drill component, eliminating contamination risk while requiring minimal user intervention, thus resolving the contradiction between ease of operation and contamination prevention.
4Object-generated harmful factors
If automatic retraction mechanism is added, then object-generated harmful factors are reduced, but device complexity increases
Solution Approach 1:
The patent implements a self-service automatic retraction mechanism that activates automatically upon detection of drilling completion, without requiring external control or complex programming. The system monitors its own operational state and autonomously initiates stylet retraction, providing enhanced safety features while minimizing the increase in device complexity through self-regulating 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
The solution provides a safe, efficient, and controlled method for intraosseous access, minimizing the risk of contamination and manual handling errors, while allowing for single-handed operation and easy disposal of the device.
Implementation Method 1
pressure sensor for precise bone entry
Data Source
AI summary
A portable and passive safety intraosseous device to allow for direct introduction of medications, etc., within the intermedullary space of a subject patient's bone or, if needed, the removal of certain substances from such a subject patient's bone. Such a device permits direct drilling and placement of a cannula within the subject bone with access external to the subject patient's skin, permitting, as well, connection of a tube for such introduction/removal purposes. The ability to provide a passive safety unit allows for facilitated utilization in, for instance, emergency situations with the entire device provided for utilization thereof. The device includes a drilling component with a permanently attached stylet and a removable cannula, a power supply for a single drilling operation, a mechanism to draw the stylet back into the drill component after use and disengagement from the cannula, and an automatic closure that activates with the separation of the cannula.