Tube injection refers to several distinct applications, all involving the insertion of substances into a tube or tube-like structure. The specific meaning depends heavily on the context.
Different Meanings of "Tube Injection"
Here are several interpretations of "tube injection" based on provided examples:
1. Building Construction: Pre-installed Tubing for Repairs
This refers to a network of perforated tubes embedded within building walls during construction. These tubes provide access points for injecting materials to seal cracks, repair leaks, or treat structural issues. This system is designed for easy access from the exterior of the building. Example: SealBoss Injection Tube System used for waterproofing concrete.
2. Audio Engineering: Tube-based Audio Equipment
This context relates to audio interfaces and signal processing. "Tube injection" in this case describes electronic circuits incorporating vacuum tubes (often referred to as "valves") to enhance audio signals. Example: Shaw Audio's Tube Injection combines a tube preamp with balanced direct inputs.
3. Medical Procedures: Specialized Injection Needles & Techniques
This involves the delivery of substances into a vessel or tissue through a specialized tube or needle. This could range from contrast medium injection during medical imaging (like CT scans) to injecting medication, such as tail vein injection in small animals. Examples: MRI-Conditional Eccentric-Tube Injection Needle for hydrogel deployment; Shorti Tail Vein Injection Tube for mice.
4. Industrial Processes: Fluid Injection and Sampling
Various industrial applications use tube injection for introducing chemicals or sampling fluids. These tubes may be retractable for safety and flexibility, handling high-pressure fluids. Example: Cosasco's Injection/Sampling Tube Assemblies operate up to 1500 PSI.
5. Agricultural Applications: Targeted Treatment of Crops
This technique involves introducing substances directly into plants through tubes. In agriculture, this can be used for targeted delivery of treatments like RNA interference to combat crop diseases. Example: Injection of dsRNA into shrimp to target microsporidian parasites.
In summary, "tube injection" is a broad term describing various techniques employing tubes for the delivery or sampling of materials. The exact application needs to be considered from the context in which the term is used.