Venous Cannulation
Venous Cannulation - Related Videos
07:51
Peripheral Venous Cannulation
0 Views •
2023
Source: Sharon Bord, MD, Department of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA Placement of an intravenous (IV) catheter is one of the key procedures in medicine. The IV catheter allows patients to receive critical medications, including pain medicine, insulin, antibiotics, blood products, and fluids for rehydration. Additionally, placing an IV catheter allows for blood samples to be obtained, which can be sent to the laboratory for testing and...
02:05
Intraduodenal Cannulation in a Rat Model for Immunopathology Studies
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2025
This video demonstrates intraduodenal cannulation in a rat model. After anesthetizing the rat, the duodenum is located and a small puncture is created. A J-shaped cannula with a beveled tip is carefully inserted and secured, and the incision is closed. The cannulated rat model enables intra-intestinal infusion for immunopathology studies.
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...
10:45
Central Venous Catheter Insertion: Femoral Vein
0 Views •
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...
05:18
Cannulation of the Mouse Submandibular Salivary Gland via the Wharton's Duct
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Cited by 17 •
2011
A protocol for the cannulation of the mouse submandibular salivary gland via the Wharton's duct is described. For this experiment, the trypan blue solution is used as a dyer to demonstrate how this technique effectively delivers infusions into the targeted gland, and to suggest the reliability of this new approach as a potential clinical drug/cell therapy for the regeneration of salivary glands.
FAQs
The hollow needle first provides a pathway through the vessel wall, allowing the flexible catheter to enter the vein. Once placement in the venous space is confirmed, the needle is withdrawn while the catheter remains in position. This separation lets clinicians maintain access without leaving the rigid needle in the vessel during treatment or blood collection.
Confirmation establishes that the catheter has entered the vein rather than remaining outside the vessel. It provides the basis for withdrawing the needle and proceeding with infusion or sampling through the catheter. This step supports controlled use of the access and helps limit problems associated with incorrect placement, including infiltration of administered material into surrounding tissue.
Skin antisepsis helps prepare the insertion site before the catheter enters the bloodstream. After placement, securement helps keep the catheter in position, while ongoing site assessment helps identify problems during continued use. Together, these measures support reliable access and help reduce complications such as infection, infiltration, and phlebitis.
Catheter types and venous sites are selected according to the clinical need rather than treated as interchangeable choices. The available options can accommodate different requirements for access, including administration or collection tasks. In medicine, this selection allows venous cannulation to support varied diagnostic and treatment situations while maintaining controlled bloodstream access.
The workflow begins with skin antisepsis, followed by insertion of a hollow needle to guide the flexible catheter through the vessel wall. Clinicians then confirm venous placement, withdraw the needle, and secure the catheter. The resulting access can be used for controlled infusion or blood collection, with the site assessed during ongoing use.
Peripheral venous cannulation supports several common clinical needs. It can provide access for fluids, medications, blood products, and contrast agents, and it can also support blood collection for diagnosis. The same access may therefore serve treatment or diagnostic purposes, depending on what must be delivered or obtained through the bloodstream.