cannula

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cannula

 [kan´u-lah]
a tube for insertion into a vessel, duct, or cavity. During insertion its lumen is usually occupied by a trocar; following placement, the trocar is removed and the cannula remains patent as a channel for the flow of fluids.
nasal cannula one that fits into the nostrils for delivery of oxygen therapy. Called also nasal prongs.

can·nu·la

(kan'yū-lă),
A tube that can be inserted into a cavity, usually by means of a trocar filling its lumen; after insertion of the cannula, the trocar is withdrawn and the cannula remains as a channel for the transport of fluid or passage of instruments.
[L. dim. of canna, reed]

cannula

/can·nu·la/ (kan´u-lah) a tube for insertion into a vessel, duct, or cavity; during insertion its lumen is usually occupied by a trocar.

cannula

also

canula

(kăn′yə-lə)
n. pl. cannu·las or cannu·lae (-lē′)
A flexible tube, usually containing a trocar at one end, that is inserted into a bodily cavity, duct, or vessel to drain fluid or administer a substance such as a medication.

cannula

[kan′yələ] pl. cannulas, cannulae
Etymology: L, small tube
a flexible tube that may be inserted into a duct or cavity to deliver medication or drain fluid. It may be guided by a sharp, pointed instrument (trocar). A body fluid may be passed through the cannula to the outside. See also nasal cannula. cannular, cannulate, adj.

cannula

A tube inserted into a duct, cavity or other space; its lumen is maintained closed by a trocar during insertion.

cannula

Surgery A tube inserted into a duct, cavity or other space; during insertion, its lumen is occluded by a trocar. See Endoscopy, Nasal cannula, QuickDrawvenous cannula, Trocar.

can·nu·la

(kan'yū-lă)
A tube that can be inserted into a cavity or vein, usually by means of a trocar filling its lumen; after insertion of the cannula, the trocar is withdrawn and the cannula remains as a channel for the transport of fluid. Intravenous cannulas should be changed regularly to prevent thrombophlebitis.
[L. dim. of canna, reed]

cannula

(kan'u-la) [L., a small reed]
Enlarge picture
NEEDLELESS CANNULAE USED TO CONNECT AN ADDITIVE TO PRIMARY INTRAVENOUS INFUSIONS
A tube or sheath that encloses a trocar. After the device is inserted into a blood vessel, body cavity, duct, or hollow organ, withdrawal of the trocar lets fluid drain (so that it can be collected or sampled) or escape. See: illustration

Bellocq's cannula

See: Bellocq's cannula
Enlarge picture
NASAL CANNULA FOR OXYGEN DELIVERY.

nasal cannula

Tubing used to deliver oxygen at levels from 1 to 6 L/min. The nasal prongs of the cannula extend approx. 1 cm into each naris and are connected to a common tube, which is then connected to the oxygen source. It is used to treat conditions in which a slightly enriched oxygen content is needed, such as emphysema. The exact percentage of oxygen delivered to the patient varies with respiratory rate and other factors.
illustrationillustration

cannula

A hollow surgical tube, into which is inserted a close fitting, sharp-pointed inner stiffener called a trocar. The combination can easily be pushed through the skin or the lining of a blood vessel or other tissue. When in position, the trocar is pulled backwards out of the cannula, leaving the latter in place. Fluids or other materials may then be passed.

Cannula

A tube inserted into a cavity to serve as a channel for the transport of fluid.

can·nu·la

(kan'yū-lă)
Tube that can be inserted into a cavity, usually by means of a trocar filling its lumen.
[L. dim. of canna, reed]

cannula (kan´yələ),

n a tube for insertion into the body; its caliber is usually occupied by a trocar during the act of insertion.
cannula, nasal,
n a small, half-moon shaped plastic tube, the ends of which fit into the nostrils of an individual.

cannula

a tube for insertion into a duct or cavity; during insertion its lumen may be occupied by a trocar.

nasal cannula
a means of delivering oxygen to dogs or cats over a long period.
References in periodicals archive ?
The risk of arterial wall perforation and emboli with cannulas is lower, but these complications can still occur.
Precise Flight is the only supplier we found that provides the same number of masks as it does cannulas with its systems.
6%) cases were complicated when 18G cannula was used while 11 out of 94 (11.
In my opinion the dialysis cannulas deserve a space in the haemodialysis nurse's cannulating arsenal and although there are many positives there are a few points that nurses need to consider before reaching for a dialysis cannula.
Cannulas can allow bacteria directly into the bloodstream although the incidence of infections is low.
Availability in an ULTRA LOW PROFILE LONG (APC5LU) configuration that comes in a smaller diameter cannula housing without the Luer-Lock port.
Precise Flight offers the A-5 flowmeter, which is an improved version of the A-4 that's suitable for masks and cannulas.
Second, care should be taken to ensure that there is no gap between the two cannulas and that there is no shearing of either cannula.
The new medical device provides a cost-effective alternative to re-usable cannulas used for liposuction and have been clinically evaluated with positive feedback and results
1,000 Lives Plus is now working with health boards and NHS trusts across Wales to improve the use and maintenance of these devices and reduce the number of cannulas which are actually inserted.
We took a stainless steel 17 gauge Touhy epidural needle and two 16 gauge intravenous cannulas and cut the cannulas off at their hub.