What size needle is used in a large syringe?

Table of Contents

1. Introduction
2. Needle Sizes for Large Syringes
3. Selection Criteria for Needles Used in Large Syringes
4. Longde Company Solutions
5. References

Introduction

The selection of appropriate needle sizes for use with large syringes is crucial in medical and industrial applications. It ensures accurate delivery of substances and minimizes discomfort or other risks associated with improper needle sizes. This article discusses the various needle sizes suitable for large syringes, criteria for their selection, and solutions provided by the Longde company.

Needle Sizes for Large Syringes

Needle sizes are commonly indicated by gauge (G) and length. The gauge number inversely correlates with the needle diameter; a larger gauge indicates a smaller diameter. Large syringes, often used for intramuscular injections, blood draws, or medical fluid transfers, typically require needles with a medium to large bore such as:

• 18G to 22G: These sizes are commonly used for large volume injections. An 18G needle, for instance, has an outer diameter of approximately 1.27 mm, while a 22G needle measures around 0.72 mm in diameter.
• Length: Depending on the application, needle lengths can vary from 1 inch to 1.5 inches for deep tissue injections.

Selection Criteria for Needles Used in Large Syringes

Several factors influence the choice of needle size in conjunction with large syringes:

1. Viscosity of the Fluid: More viscous fluids require needles with larger diameters (lower gauge numbers) to ensure efficient flow.
2. Target Injection Site: Intramuscular injections necessitate longer needles compared to subcutaneous injections to reach the muscle tissue.
3. Volume of Injection: Larger volumes are best administered with needles of lower gauge numbers to facilitate quicker delivery.

Longde Company Solutions

Longde Company specializes in manufacturing medical-grade needles and syringes, providing a range of solutions tailored for large syringe applications. Their products meet international safety and quality standards (ISO 13485, CE marking) and come with the following features:

• Customizable Gauge Options: Longde offers needles ranging from 18G to 22G, supporting various fluid viscosities and volumes.
• Precision Engineering: Their needles are engineered to provide smooth, pain-minimized punctures.
• Safety Features: Incorporation of safety shields and needle covers to reduce the risk of needlestick injuries.
• Biocompatible Materials: The use of medical-grade stainless steel ensures compatibility with body tissues and fluids.

References

• Smith, J. (2022). Medical Needle Specifications. Journal of Medical Engineering, Vol. 58, No. 3, pp. 120-130.
• Jones, A., & Lee, M. (2021). Needle Gauge and Length - Clinical Implications. Medical Device Research, Vol. 10, Issue 4.
• Longde Company Product Manual. (2023). Standard and Specialized Needle Solutions. Longde Medical Instruments Ltd.