Bone Screw Fluid Delivery Device Fixation Leakage
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Solution Overview
Problem
Existing surgical delivery devices often experience insufficient engagement with bones, leading to potential leakage of substances during delivery, which can hinder effective treatment of fractures or bone injuries.
Innovation Solution
A delivery device comprising a luer portion, a bit portion, and a fluted portion, where the fluted portion is designed to create a hole in the bone, and a conduit extends through these components, allowing for the delivery of substances directly into the bone while ensuring secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a delivery device is used to deliver substance to bone, then substance delivery is enabled, but insufficient engagement with bone causes leakage of fluid into surrounding tissue
Solution Approach 1:
The patent combines a delivery device with a bone screw fixation device into a single integrated unit. The delivery device includes a shaft with a substance delivery lumen and a bone screw portion with threaded engagement features, allowing simultaneous fixation and substance delivery through one device rather than separate components
Solution Approach 2:
The delivery device is designed to perform multiple functions: it provides mechanical fixation through bone screw threading, delivers substances through the internal lumen, and creates bone engagement through the threaded portion. This multi-functional design eliminates the need for separate fixation and delivery devices
2Reliability
If a bone screw is used for fixation, then stable fixation is achieved, but the device cannot deliver substances to the bone
Solution Approach 1:
The patent merges the fixation function of a bone screw with the substance delivery function of a catheter-like device. The bone screw portion includes an internal lumen that extends from the distal end to allow substance delivery, while the external threads provide fixation stability
Solution Approach 2:
The bone screw is designed as a multi-functional device that simultaneously provides mechanical fixation through its threaded external structure and substance delivery through its internal lumen, allowing it to serve both orthopedic fixation and pharmacological delivery purposes
Data Source
AI summary
A delivery device for delivering substance to bone includes a luer portion configured to be detachably coupled to a bit driver, the luer portion having a luer thread. A bit portion is rigidly coupled the luer portion, and the bit portion is configured to accommodate the bit driver. A fluted portion is rigidly coupled to the bit portion, the fluted portion comprising a flute, the flute configured to create a hole in the bone. A conduit extends through the luer portion and the bit portion, at least partially through the fluted portion. The flute defines an aperture extending from the conduit entirely through the flute, and the aperture is configured to allow a substance to pass therethrough.