MUMBAI, India, Aug. 10 -- Intellectual Property India has published a patent application (202641090217 A) filed by Chettinad Dental College And Research Institute; and Chettinad Academy Of Research And Education on July 24, 2026, for Safety-Enhanced Hypodermic Needle Assembly.
Inventors include Ivin Elsa John; Renin Maria; N. Sornaa; and P. Rajesh.
The application for the patent was published on July 31, 2026, under issue no. 31/2026.
Abstract: The present invention relates to a safety-enhanced hypodermic needle assembly (100) comprising a protective cap body (101) detachably engageable with a needle hub (105). The protective cap body (101) includes an indicator layer (102), a colour indicator zone (103), and a transparent window (104) aligned with the colour indicator zone (103). The indicator layer (102) comprises an irreversible colour-responsive material adapted to change from a first predetermined colour indicating a sterile unused condition to a second predetermined colour indicating usage, exposure, contamination, or tampering. A chemically inert barrier (106) separates the indicator layer (102) from the needle-receiving region to prevent contact with the hypodermic needle. The assembly (100) enables visual identification of compromised needle condition, thereby reducing accidental reuse, cross-contamination, and infection risk. Figure 1 is the reference.
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