Sterile Needle
Sterile Needle - Related Videos
12:29
Sterile Tissue Harvest
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN In 1959 The 3 R's were introduced by W.M.S. Russell and R.L. Burch in their book The Principles of Humane Experimental Technique. The 3 R's are replacement, reduction, and refinement of the use of animals in research. The use of cell lines and tissue cultures that originated from research animals is a replacement technique, as it allows for many experiments to be conducted in vitro. Harvesting...
01:30
Cleaning, Sterilization, and Disinfection
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2023
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease. Cleaning The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
09:51
Intraosseous Needle Placement
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2023
Source: Julianna Jung, MD, FACEP, Associate Professor of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA For unstable patients requiring urgent administration of medications, fluids, or blood products, establishing vascular access quickly is essential. However, there are many factors that can complicate placement of a peripheral intravenous cannula (PIV), and it is extremely common for PIV attempts to fail. PIV placement may be technically challenging in small...
01:30
Methods of Sterilization II: Chemical Methods
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2023
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements. Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
01:29
Methods of Sterilization I: Physical Methods
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2025
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation. Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
FAQs
Sterility depends on more than the needle’s package: aseptic handling and sterile equipment must preserve the barrier against microbial entry during use. The sharp tip then penetrates a defined site without changing the intended sampling or delivery location. Together, these controls reduce contamination risk and help maintain the original condition of cancer-related samples or experimental systems.
Avoidable microorganisms can compromise sample integrity or alter experimental conditions, making results harder to interpret. Using a sterile needle as part of a consistent aseptic workflow reduces that source of variation. This is especially important when researchers compare molecular, cellular, or pharmacological measurements across biopsies, specimens, or experimental models.
A defined penetration site makes the needle’s action reproducible: researchers can target the intended tissue, sampling location, or delivery site rather than introducing variation through imprecise placement. In cancer studies, that consistency supports comparable biopsies, tissue samples, or injections across experiments. It also works with aseptic handling to protect the surrounding experimental system from avoidable microbial exposure.
Begin with a needle that has been prepared and packaged for sterility, then maintain aseptic handling and use sterile equipment during the procedure. The tip should enter the defined site required for sampling or delivery. This workflow connects packaging, handling, and placement, helping preserve sample integrity and experimental conditions throughout the intervention.
Cancer researchers can use sterile needles for tumor biopsies, cell and tissue sampling, injection of investigational compounds, and collection of blood or other specimens. These uses support different experimental goals, from obtaining material for analysis to delivering a compound into an experimental system. The common requirement is maintaining sample integrity while limiting avoidable contamination.
Procedures using sterile needles can provide tumor tissue, cells, blood, and other specimens for molecular, cellular, or pharmacological analyses. They can also support delivery-based experiments involving investigational compounds. By reducing microbial contamination and preserving experimental conditions, consistent needle sterility helps researchers obtain interpretable material and improve reproducibility across cancer research studies.