Safety Needle With Depth Indication Bands
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Solution Overview
Problem
Existing hypodermic needles lack clear indicators for proper insertion depth and angle, leading to potential injuries and failed medication administration or fluid withdrawal due to incorrect insertion.
Innovation Solution
A safety needle with a hollow shaft featuring a tapered adapter, beveled tip, and visible depth indication bands or rings of varying colors or shades, along with an optional collar to limit insertion, is designed for accurate medication administration and fluid withdrawal, accompanied by a guide for depth measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no depth indication bands are provided on the needle shaft, then the needle structure remains simple, but the practitioner cannot accurately determine the proper insertion depth leading to potential injuries and failed administration
Solution Approach 1:
The patent applies color changes by providing depth indication bands in different colors (e.g., red, yellow, green) or varying shades on the needle shaft. These colored bands visually indicate specific insertion depths to the practitioner, enabling accurate depth determination without complex mechanical measurement devices. The color coding system translates depth measurements into intuitive visual cues that can be quickly interpreted during administration.
2Measurement precision
If no depth indication bands are provided on the needle shaft, then the needle structure remains simple, but the practitioner cannot accurately determine the proper insertion angle leading to potential injuries and failed administration
Solution Approach 1:
The patent applies color changes by providing depth indication bands in different colors (e.g., red, yellow, green) or varying shades on the needle shaft. These colored bands visually indicate specific insertion depths to the practitioner, enabling accurate depth determination without complex mechanical measurement devices. The color coding system translates depth measurements into intuitive visual cues that can be quickly interpreted during administration.
3Reliability
If the needle allows unlimited insertion depth, then the needle structure remains simple, but incorrect insertion depth may cause injury or failed injection
Solution Approach 1:
The patent applies preliminary action by pre-marking the needle shaft with depth indication bands at predetermined safe insertion depths before use. These pre-established visual cues guide the practitioner to the correct insertion depth during administration, preventing both under-insertion (which causes failed injection) and over-insertion (which causes injury). The preliminary marking system eliminates the need for real-time complex measurement during the procedure.
Solution Approach 2:
The patent applies color changes by providing depth indication bands in different colors (e.g., red, yellow, green) or varying shades on the needle shaft. These colored bands visually indicate specific insertion depths to the practitioner, enabling accurate depth determination without complex mechanical measurement devices. The color coding system translates depth measurements into intuitive visual cues that can be quickly interpreted during administration.
4Ease of operation
If the needle lacks visual depth cues, then the needle structure remains simple, but the practitioner experiences uncertainty and potential error during insertion
Solution Approach 1:
The patent applies color changes by providing depth indication bands in different colors (e.g., red, yellow, green) or varying shades on the needle shaft. These colored bands visually indicate specific insertion depths to the practitioner, enabling accurate depth determination without complex mechanical measurement devices. The color coding system translates depth measurements into intuitive visual cues that can be quickly interpreted during administration.
Data Source
AI summary
A safety needle for administering medication and withdrawing biological fluids includes a hollow needle tube including a proximate end, an opposing distal end, and a lumen extending along the length of the shaft from the proximate end to the distal end. The shaft includes an adapter at the proximate end and a beveled tip the distal end. The adapter is configured for connecting the needle to a syringe. An optional collar tube may be mounted on the shaft to limit insertion of the needle into the body. A plurality of visible depth indication bands or rings can be provided on the shaft. The bands can have various colors or various shades of one color. The bands can have uniform or non-uniform widths, with each band being a different distance from the beveled tip.