Retractable Needle Catheter Insertion Device with Guidewire Trigger
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Solution Overview
Problem
Current catheter insertion devices often require two-handed operation and lack efficient mechanisms for needle retraction, posing challenges in ease of use and safety during peripheral IV catheter insertion.
Innovation Solution
A catheter insertion device featuring a retractable needle and a manually extensible guidewire with a guidewire advancement feature, allowing one-handed operation and automatic needle retraction into the housing to prevent accidental sticks, facilitated by a needle retention component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional catheter insertion device is used, then the catheter can be inserted into the vessel, but two-handed operation is required and needle retraction is inefficient
Solution Approach 1:
The patent combines the needle retention component and guidewire advancement feature into a single integrated mechanism. When the guidewire is advanced, it automatically triggers needle retraction through this merged mechanism, allowing one-handed operation while managing the complexity through functional integration rather than separate components
2Reliability
If manual needle retraction is used, then the needle can be retracted, but the process is inefficient and poses safety risks
Solution Approach 1:
The needle retention component is pre-configured to automatically engage and retract the needle as soon as the guidewire is advanced into the vessel. This preliminary action ensures the needle is safely retracted immediately after catheter insertion is established, eliminating the need for manual retraction and reducing safety risks while maintaining efficiency
Solution Approach 2:
The device performs self-service by automatically retracting the needle through the retention component when the guidewire is advanced. The system uses the guidewire advancement itself to trigger the needle retraction action, eliminating the need for separate manual intervention and improving both safety and efficiency
Data Source
AI summary
A catheter insertion device for inserting a catheter into a body of a patient is disclosed. The catheter insertion device includes a retractable needle for establishing access to a subcutaneous vessel of the patient and a manually extensible guidewire for guiding the initially attached catheter into the vessel. In one embodiment, the catheter insertion device comprises a housing, a hollow needle retractably extending from the housing, a catheter initially disposed on a portion of the needle, a guidewire including a portion initially disposed within the needle, a guidewire advancement feature configured to selectively advance a distal end of the guidewire distally past a distal end of the needle, and a needle retention component configured to selectively enable retraction of the needle into the housing. The needle retention component is configured to be actuated by the guidewire advancement feature. In one embodiment, one-handed operation of the device is possible.