{"id":534,"date":"2021-03-11T10:55:32","date_gmt":"2021-03-11T10:55:32","guid":{"rendered":"https:\/\/tttworld.com\/?p=534"},"modified":"2025-05-13T13:53:26","modified_gmt":"2025-05-13T10:53:26","slug":"hypodermic-needle","status":"publish","type":"post","link":"https:\/\/tttworld.com\/en\/hypodermic-needle\/","title":{"rendered":"Hypodermic Needle"},"content":{"rendered":"

A hypodermic needle<\/strong> is a manually operated medical device used in conjunction with a syringe to inject substances (such as medications or solutions) into the body or to withdraw fluids (such as blood). It is a subcutaneous needle that penetrates the skin and is typically designed as a sharp, hollow metal tube<\/strong>.<\/p>

Hypodermic needles vary in bevel shape, gauge, diameter, and length<\/strong>, depending on their intended use. They are commonly used for rapid fluid administration<\/strong>, when oral intake is not possible (e.g., vomiting), or when drugs (like insulin) require subcutaneous absorption. They are also critical in research environments that require strict sterile conditions<\/strong>, such as during the inoculation of sterile substrates, significantly reducing the risk of contamination.<\/p>

Why Hypodermic Needles Minimize Contamination:<\/strong><\/p>

  1. The needle surface is extremely smooth<\/strong>, preventing airborne pathogens from adhering and transferring to the substrate.<\/p><\/li>

  2. The needle tip is exceptionally sharp<\/strong>, leaving a very small puncture<\/strong>, which reduces the chance of larger microorganisms contaminating the entry point.<\/p><\/li><\/ol>

    Hypodermic needles are usually made of high-grade stainless steel<\/strong>, with beveled and sharpened tips for smooth, painless skin penetration<\/strong>.<\/p>

    Hypodermic Needle Sizes (Gauge Chart)<\/p>

    There are six commonly used hypodermic needle sizes:<\/p>

    1. 26G x 1\/2″ (0.45 x 12 mm)<\/strong> \u2013 Brown<\/p><\/li>

    2. 25G x 5\/8″ (0.5 x 16 mm)<\/strong> \u2013 Orange<\/p><\/li>

    3. 22G x 1 1\/4″ (0.7 x 30 mm)<\/strong> \u2013 Black<\/p><\/li>

    4. 21G x 1 1\/2″ (0.8 x 40 mm)<\/strong> \u2013 Green<\/p><\/li>

    5. 20G x 1 1\/2″ (0.9 x 40 mm)<\/strong> \u2013 Yellow<\/p><\/li>

    6. 19G x 1 1\/2″ (1.1 x 40 mm)<\/strong> \u2013 Cream<\/p><\/li><\/ol>

      In clinical use, needle gauges typically range from 7G (largest)<\/strong> to 33G (smallest)<\/strong>.<\/p>

      1. 21G<\/strong> needles are the most commonly used for general blood collection<\/strong><\/p><\/li>

      2. 16G or 17G<\/strong> are preferred for blood donation<\/strong>, as they allow faster blood flow<\/p><\/li><\/ol>

        Though reusable needles<\/strong> are still used in some scientific fields, single-use disposable needles<\/strong> are now standard in clinical medicine. These are attached to a syringe hub by press-fit or twist-lock mechanisms<\/strong>, usually in plastic or aluminum housings<\/strong>.<\/p>

        Who Uses Hypodermic Needles?<\/strong><\/p>

        Hypodermic needles are commonly used by:<\/p>

        1. Healthcare professionals<\/strong>: doctors, nurses, dentists, pharmacists, phlebotomists, paramedics<\/p><\/li>

        2. Patients<\/strong>: e.g., individuals with type 1 diabetes<\/strong> who self-administer insulin multiple times a day<\/p><\/li>

        3. Patients with severe allergies<\/strong> or conditions like asthma may also use hypodermic needles for emergency medication delivery<\/p><\/li><\/ol>

          Technical Specifications \u2013 Hypodermic Needle<\/p>

          1. Compliant with International Standard<\/strong>: EN ISO 7864<\/p><\/li>

          2. Cannula<\/strong>: High-quality stainless steel<\/strong><\/p><\/li>

          3. Transparent Cap<\/strong>: Medical-grade PP<\/strong> (Polypropylene)<\/p><\/li>

          4. Needle Hub<\/strong>: Medical-grade PP with color coding<\/strong><\/p><\/li>

          5. Wall Thickness<\/strong>: Available in ultra-thin wall<\/strong> or regular wall<\/strong><\/p><\/li>

          6. Color Coding<\/strong>: In accordance with ISO 6009<\/strong><\/p><\/li>

          7. Packaging<\/strong>: Blister pack<\/strong> made of medical-grade paper and transparent film<\/p><\/li>

          8. Sterilization Method<\/strong>: Ethylene Oxide (EO)<\/strong><\/p><\/li><\/ol>

            Additional Features:<\/p>

            1. Medical silicone-coated cannula<\/strong> for smoother insertion<\/p><\/li>

            2. Precision beveled tip<\/strong> for painless and easy skin penetration<\/p><\/li>

            3. Color-coded needle hub designed to meet international standards<\/p><\/li>

            4. Protective cap<\/strong> to maintain needle integrity until use<\/p><\/li>

            5. Individually sealed in medical-grade blister packaging<\/strong> for sterility<\/p><\/li><\/ol>","protected":false},"excerpt":{"rendered":"A hypodermic needle is a manually operated medical device used in conjunction with a syringe to inject substances (such as […]","protected":false},"author":1,"featured_media":414,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products"],"acf":[],"_links":{"self":[{"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/posts\/534","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/comments?post=534"}],"version-history":[{"count":5,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/posts\/534\/revisions"}],"predecessor-version":[{"id":2080,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/posts\/534\/revisions\/2080"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/media\/414"}],"wp:attachment":[{"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/media?parent=534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/categories?post=534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tttworld.com\/en\/wp-json\/wp\/v2\/tags?post=534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}