Modular Intraosseous Power for Continuous Bone Drilling
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Solution Overview
Problem
Intraosseous access systems face interruptions and increased patient risk due to battery power depletion when drilling through larger bones, requiring battery replacement during procedures.
Innovation Solution
An intraosseous access system with a dual power source configuration, where a self-contained external power source can be coupled with a primary power source within the device, extending operational duration and enhancing torque through simultaneous power conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single battery pack is used in the IO access system, then the device structure remains simple, but the operational duration is insufficient when drilling larger bones
Solution Approach 1:
The power source is divided into a primary battery pack integrated into the driver and a secondary removable battery pack that can be coupled to the access assembly. This segmentation allows the system to extend operational duration by using both battery packs simultaneously or sequentially, while maintaining the ability to operate with either pack independently.
Solution Approach 2:
The system merges two power sources (primary and secondary battery packs) into a unified power delivery system through the power converter. Both battery packs can be simultaneously coupled to provide combined power output, extending the operational duration beyond what a single battery pack could achieve alone.
2Duration of action of moving object
If the battery pack is replaced during the drilling process, then the operational duration can be extended, but procedural interruption occurs and patient risk increases
Solution Approach 1:
The secondary battery pack is prepared and coupled to the access assembly before the drilling procedure begins. This preliminary configuration ensures that additional power capacity is already in place, eliminating the need for mid-procedure battery replacement and maintaining procedural continuity.
Solution Approach 2:
The dual battery pack system enables continuous power supply throughout the entire drilling procedure. The primary and secondary battery packs work together to maintain uninterrupted power delivery to the needle motor, ensuring the drilling action continues without pause or procedural interruption.
3Duration of action of moving object
If a second modular power source is added to the IO access system, then extended operational duration is achieved, but the device complexity increases
Solution Approach 1:
The secondary battery pack is designed with universal coupling capability to the access assembly, allowing it to function as either a supplemental power source or a standalone power source. The modular design enables the same component to serve multiple functions depending on the operational requirements, reducing the need for specialized components.
Solution Approach 2:
The power source configuration is made dynamic and adaptable. The system can operate in multiple modes: using only the primary battery pack, using only the secondary battery pack, or using both simultaneously. The coupling mechanisms and power converter dynamically adjust to accommodate different power source configurations based on procedural needs.
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
This configuration allows for extended drilling time without procedural interruptions, reducing patient risk by ensuring continuous power supply during bone access procedures.
Implementation Method 1
a power converter configured to convert power from the power sources into rotational power of the needle
Implementation Method 2
The power converter may include a gear assembly configured to convert an input rotational speed of an input shaft to an output rotational speed of an output shaft that is different from the input rotational speed
Data Source
AI summary
An intraosseous access system, including an access assembly having a needle configured to drill into bone via rotation of the needle and a driver. The driver can include a housing, a power converter configured to impart rotational power to the needle, a first power source coupled to the power converter, and a second power source selectively coupleable to the power converter, where the second power source is configured to be disposed at least partially external to the housing. A method of drilling through a bone includes providing the intraosseous access system, applying rotational power to the needle, and placing the needle in contact with the bone. The method can further include coupling the second power source to the power converter so that power from the second power source is combined with power from the first energy source.