MUMBAI, India, Jan. 7 -- Intellectual Property India has published a patent application (202511103123 A) filed by Ace Cathtech Private Limited, Faridabad, Haryana, on Oct. 26, 2025, for 'a blood gas syringe filter for improving accuracy of arterial blood gas sampling.'
Inventor(s) include Gaurav Manocha; and Umesh Munjal.
The application for the patent was published on Dec. 12, under issue no. 50/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a blood gas syringe filter (100) designed to enhance the accuracy of arterial blood gas sampling is disclosed. The filter comprises a cylindrical housing (110) with optimized inner and outer diameters ranging from 3.9 mm to 9.8 mm and an overall length of approximately 33.3 mm. A tapered interface (120) with calibrated taper angles between 0.5 and 7.5 ensures a secure seal with standard syringe hubs. Within the housing, a micro-porous filter membrane (130) made of hydrophilic PTFE or a biocompatible equivalent effectively traps air bubbles, micro-clots, and particulate matter while allowing laminar blood flow without hemolysis. The design incorporates a reduced dead-space volume (140) to minimize sample dilution and preserve measurement accuracy. Additionally, an ergonomic outer profile (150) facilitates ease of insertion, removal, and handling during blood collection. The filter housing (110) is preferably manufactured as a single-piece molded structure for production simplicity and stability. The membrane (130) is positioned to maximize contact with incoming blood, enhancing filtration efficiency and preventing clogging of analyzers by capturing fibrin strands and micro-thrombi. The invention also includes a method of improving arterial blood gas sampling by connecting the filter (100) to a syringe, filtering the blood sample to remove air and micro-clots, minimizing dilution, and delivering a purified sample for reliable gas analysis."
Disclaimer: Curated by HT Syndication.
