Double Lumen Nasal Catheter
Double Lumen Nasal Catheter - Related Videos
08:14
Central Venous Catheter Insertion: Subclavian Vein
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA Central venous access is necessary in a multitude of clinical situations for hemodynamic monitoring, medication delivery, and blood sampling. There are three veins in the body that are accessed for central venous cannulation: the internal jugular, the subclavian, and the femoral vein. Central venous access via the subclavian vein has several advantages over other possible locations. The subclavian...
10:45
Central Venous Catheter Insertion: Femoral Vein
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA Central venous access is necessary in a multitude of clinical situations, including vascular access, vasopressor and caustic medication delivery, central venous pressure monitoring, volume resuscitation, total parental nutrition, hemodialysis, and frequent phlebotomy. There are three veins in the body that are accessed for central venous cannulation: the internal jugular, the subclavian, and the...
11:39
Central Venous Catheter Insertion: Internal Jugular
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2023
Source: James W Bonz, MD, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA Central venous access is necessary in a multitude of clinical situations, including vascular access, vasopressor and caustic medication delivery, central venous pressure monitoring, intravascular device delivery (pacing wires, Swann-Ganz catheters), volume resuscitation, total parental nutrition, hemodialysis, and frequent phlebotomy. Safe reliable placement of a central venous catheter (CVC) in...
11:39
Peripheral Intravenous Catheter Insertion
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2023
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT The purpose of peripheral intravenous catheter (PIV) insertion is to infuse medications, perform intravenous (IV) fluid therapy, or inject radioactive tracers for special examination procedures. Placing a PIV is an invasive procedure and requires the use of an aseptic, no-touch technique. Common IV venipuncture sites are the arms and hands in adults and the feet in children. According to...
03:21
Localized Delivery of Bacteria into the Intestinal Lumen of a Zebrafish Larva Using Microinjection
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2025
Source: Li, J. et al. Development of a Larval Zebrafish Infection Model for Clostridioides difficile. J. Vis. Exp. (2020)This video demonstrates the microinjection-based delivery of fluorescently labeled Clostridioides difficile into the intestinal lumen of an anesthetized zebrafish larva. It outlines the steps involved in larval preparation, bacterial injection, and fluorescence microscopy–based confirmation of bacterial localization within the intestine.
FAQs
The separate channels allow inhaled gas delivery and exhaled-air sampling to remain functionally distinct. This reduces the chance that incoming and outgoing gases mix before analysis, which can support more accurate assessment of breathing patterns and gas exchange. The design is especially useful when support and measurement must occur through the same nasal interface.
Exhaled-air measurements depend on collecting a representative sample of gas leaving the respiratory system. If delivered and exhaled gases mix substantially, the measured composition may be less representative of respiratory output. By assigning different functions to the lumens, the catheter can support carbon dioxide monitoring while maintaining a separate pathway for respiratory gas delivery.
The nasal approach provides access through the nasal passages rather than requiring an instrument to be placed in the lower airway. This makes the device suitable for noninvasive respiratory studies in which researchers need gas delivery or sampling without directly instrumenting the lower airway. Its value therefore comes from combining access with reduced procedural intrusion.
Researchers can use one channel for respiratory gas delivery and the other for collecting or monitoring exhaled air, depending on the study design. This arrangement permits oxygen administration or another respiratory support function alongside carbon dioxide monitoring or gas-exchange measurement. The shared nasal interface simplifies access while preserving separate pathways for the two tasks.
The device can contribute to studies of oxygen administration, carbon dioxide monitoring, metabolic analysis, and pulmonary function. These applications use the catheter's ability to handle respiratory gases and exhaled-air information through separate channels. As a result, investigators can examine respiratory physiology while avoiding direct placement of an instrument in the lower airway.
It is useful when a study requires respiratory support and physiological measurement at the same time, particularly during noninvasive investigations of breathing or gas exchange. Researchers may select it when oxygen delivery, exhaled-air collection, carbon dioxide monitoring, or metabolic analysis must be performed through a nasal interface rather than by lower-airway instrumentation.