Sternal Locator Assembly for Accurate Intraosseous Access
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Solution Overview
Problem
Existing methods for establishing intravenous access, particularly in emergency situations, are often unsuccessful due to anatomical challenges and the risk of complications from conventional intraosseous needle insertion, which can lead to delayed or impossible lifesaving therapy.
Innovation Solution
An intraosseous access device with a manual driver, protective shield, and sternal locator assembly that allows for safe and precise insertion into the intraosseous space, providing sharps protection and ensuring correct placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a conventional intraosseous needle is used for emergency access, then rapid access to the intraosseous space can be achieved, but the risk of complications and incorrect placement increases
Solution Approach 1:
The device incorporates a locator assembly with probes that are inserted into the bone before the main penetrator to preliminarily identify the intraosseous space and establish correct placement trajectory. This preliminary action ensures accurate positioning before the actual fluid delivery is performed.
Solution Approach 2:
The device uses an intermediary locator assembly with probes and a protective shield as mediators between the operator and the bone. The probes serve as intermediaries to detect bone contact and confirm placement, while the protective shield acts as an intermediary barrier during the penetration process.
2Force
If a sharp penetrator tip is used to ensure effective penetration, then penetration capability is improved, but the risk of accidental injury to the user increases
Solution Approach 1:
The sharp penetrator tip is extracted from direct exposure to the user during the procedure. The protective shield is removed from the device assembly, allowing the sharp tip to be enclosed within the shield during insertion and handling, thereby eliminating the hazard of accidental injury while maintaining penetration capability.
Solution Approach 2:
The protective shield serves as an intermediary barrier that encloses the sharp penetrator tip. This intermediary structure allows the user to handle and operate the device safely while the sharp tip remains protected within the shield during insertion and fluid delivery.
3Object-affected harmful factors
If the protective shield is left in place during insertion, then sharps protection is provided, but the penetrator assembly cannot be properly inserted into the intraosseous space
Solution Approach 1:
The protective shield is designed as a dynamic component that can change its position relative to the penetrator assembly. During the insertion phase, the shield is retracted or opened to allow the penetrator to pass through, then it is deployed to provide protection during the fluid delivery phase, demonstrating dynamic functionality.
Solution Approach 2:
The device is segmented into functional components: the locator assembly with probes, the penetrator assembly with sharp tip, and the protective shield. These segmented components can be independently positioned and activated at different stages of the procedure, allowing the shield to be retracted during insertion and deployed for protection during fluid delivery.
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 manual driver includes a penetrator assembly having a sharp penetrating end, and a protective shield slidably coupled to the driver. The sternal locator includes a base having a first surface and a second surface, a through-hole extending through the first and second surfaces of the base, a collar extending from the first surface of the base and surrounding the through-hole, and a bone probe extending from the second surface of the base. The protective shield is operable to move from an extended position where the inner penetrator is shielded, to a retracted position where the inner penetrator is exposed. The sternal locator is removable from the patient while a portion of the penetrator assembly remains inserted in the intraosseous space of the patient.