Intraosseous Access Assembly With Sliding Shield and Sternal Locator
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Solution Overview
Problem
Existing methods for establishing intravenous access, particularly in emergencies or for patients with depleted peripheral veins, are often time-consuming and challenging, leading to delayed or impossible lifesaving therapy, and conventional intraosseous access devices pose risks due to sharp tips and require precise bone penetration.
Innovation Solution
An intraosseous access device with a manual driver, protective shield, and sternal locator assembly that includes a penetrator assembly with a sharp tip, a handle for manual insertion, and a protective shield that slides between extended and retracted positions for safety, along with a sternal locator for guiding insertion into the sternum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a sharp penetrator tip is used to enable quick bone penetration, then the speed of intraosseous access is improved, but the risk of injury to the user and others increases
Solution Approach 1:
The patent extracts the harmful sharp tip from the device by introducing a protective shield that covers the penetrator assembly. The shield removes the exposed dangerous element while allowing the penetrator to remain functional when needed, thus separating the harmful aspect from the useful function.
Solution Approach 2:
The protective shield acts as an intermediary between the sharp penetrator tip and the user/environment. It mediates the interaction by providing a safe barrier that can be moved aside during insertion, allowing the sharp tip to perform its function without directly exposing the user to injury risks.
2Reliability
If the protective shield is extended to provide sharps protection, then the safety is improved, but the accessibility to the intraosseous space is reduced
Solution Approach 1:
The protective shield is designed as a dynamic component that can move between extended and retracted positions. During the insertion phase, it retracts to allow access to the intraosseous space, then extends to provide protection during the infusion phase, adapting its state to the operational requirements.
Solution Approach 2:
The device is segmented into functional components: the protective shield, the penetrator assembly, and the infusion system. This segmentation allows the shield to be independently positioned to either protect or allow access, resolving the contradiction between safety and accessibility through modular design.
3Ease of operation
If manual driver is used to penetrate bone, then the ease of operation is improved, but the productivity is reduced compared to powered drivers
Solution Approach 1:
The manual driver is designed to be self-sufficient, requiring no external power source. The operator manually drives the penetrator assembly through the bone using the handle, making the system self-service capable and eliminating dependency on powered drivers that may fail or require charging.
Data Source
AI summary
An intraosseous access device for accessing an intraosseous space of a patient includes a manual driver and a sternal locator. The handle is connected to an inner penetrator hub, and an inner penetrator extends from the inner penetrator hub. An outer penetrator hub is releasably engaged to the inner penetrator hub. A protective cover is slidably coupled to the handle. The protective cover is operable to move from an extended position where the inner penetrator is covered, to a retracted position where the inner penetrator is exposed. The sternal locator includes a base; a collar extending from a first surface of the base for securing the intraosseous access device to restrict longitudinal separation of the intraosseous access device from the locator. The locator may be removed from the patient while the outer penetrator remains inserted in an intraosseous space of the patient.