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Cannula transfer or cannulation is a set of air-free techniques used with a Schlenk line, in transferring liquid or solution samples between reaction vessels via cannulae, avoiding atmospheric contamination. While the syringes are not the same as cannulae, the techniques remain relevant.
the use of syringes and rubber septa to transfer liquids and solutions; [6] cannula transfer, where liquids or solutions of air-sensitive reagents are transferred between different vessels stoppered with septa using a long thin tube known as a cannula. Liquid flow is supported by vacuum or inert-gas pressure.
A cannula in a cow's side. A cannulated cow or fistulated cow refers to a cow that has been surgically fitted with a cannula. [1] A cannula acts as a porthole-like device that allows access to the rumen of a cow, to perform research and analysis of the digestive system and to allow veterinarians to transplant rumen contents from one cow to another.
A cannula is used in an emergency procedure to relieve pressure and bloating in cattle and sheep with ruminal tympany, due most commonly to their accidentally grazing wilted legume or legume-dominant pastures, particularly alfalfa, ladino, and red and white clover. [9] Cannulas are a component used in the insertion of the Verichip.
Disposable trocars Laparoscopic instruments for insertion through trocars. A trocar (or trochar) is a medical or veterinary device used in minimally invasive surgery.Trocars are typically made up of an awl (which may be metal or plastic with a pointed or tapered tip), a cannula (essentially a rigid hollow tube) and often a seal.
The tube visible at the bottom is the aortic cannula, which returns blood from the heart–lung machine. The tube above it (obscured by the surgeon on the right) is the venous cannula, which receives blood from the body. The patient's heart is stopped and the aorta is cross-clamped. The patient's head (not seen) is at the bottom.
Multiple vacuum tubes can be attached to and removed in turn from a single needle, allowing multiple samples to be obtained from a single procedure. This is possible due to the multiple sample sleeve, which is a flexible rubber fitting over the posterior end of the needle cannula which seals the needle until it is pushed out of the way. This ...
The Karman cannula is a soft, flexible cannula (or curette) used in medical procedures that was popularized by Harvey Karman in the early 1970s. [1] The flexibility of the Karman cannula was claimed to reduce the risk of perforating the uterus during vacuum aspiration . [ 2 ]