(n.) A small tube of metal, wood, or India rubber, used for various purposes, esp. for injecting or withdrawing fluids. It is usually associated with a trocar.
Example Sentences:
(1) At the same time the duodenum can be isolated from the stomach and maintained under constant stimulus by a continual infusion at regulated pressure, volume and temperature into the distal cannula.
(2) Animals were chronically implanted with epidural or deep recording electrodes and a cannula in one lateral ventricle, and tested whilst seated in a primate chair.
(3) Neither was the intra-VMH infusion of MA effective if: (i) the rats were not primed with estrogen; (ii) the tips of the cannulae were outside the VMH; or (iii) it was preceded by an intra-VMH infusion of the alpha 1b-antagonist, chloroethylclonidine (CEC).
(4) An inner cannula containing PGE2 or PGF2alpha at its tip was inserted into the previously implanted outer cannula.
(5) 137 internal jugular vein cannulae from 113 patients undergoing open heart surgery were cultured using standard broth culture and a semiquantitative culture technique.
(6) They were fitted with a gastric cannula through which 'milk' was infused automatically.
(7) Thrombosis of the subclavian vein occurs with these cannulae and is usually asymptomatic.
(8) It is suggested that long teflon cannulas should be avoided and that infusion thrombophlebitis could be eliminated as a clinical problem by the use of intermittent short duration intravenous infusions.
(9) Male Holtzman rats were implanted with chronic cerebral cannulas into the LH.
(10) An oxygen-conserving nasal cannula and oxygen concentrator were used.
(11) Rats were implanted with chronic indwelling cannulae into the lateral cerebral ventricle.
(12) Release of noradrenaline (NA), adrenaline (A) and dopamine (DA) was measured in vivo per minute before and after food presentation in satiated rats that had a cannula in the mediodorsal hypothalamic area (MDH).
(13) Ovariectomized (OVXed) animals were implanted with chronic cannulas in the basal forebrain.
(14) Compared to the original cannulas, there were markedly fewer difficulties with granulations, infection, and tube malposition with the modified cannulas.
(15) Blood collection, carried out via a jugular cannula or caudal venipuncture, had no significant effect on cortisol level.
(16) A special CSF outflow opening of the cannula is connected to polyethylene tubing for CSF sampling.
(17) After amputation of the closed tip, a cap from a syringe was inserted via a slit made at the base into one prong of a pair of nasal cannulae.
(18) In Study B, V3V cannulae were implanted in rats after a captopril-induced appetite for NaCl was established.
(19) The patency of chronically implanted intravascular cannulae is usually limited by thrombus formation at the cannula tip.
(20) In Group 1, cardiac drainage was achieved by using single-port drainage cannulae in the superior and inferior vena cava with caval tapes.
Trocar
Definition:
(n.) A stylet, usually with a triangular point, used for exploring tissues or for inserting drainage tubes, as in dropsy.
Example Sentences:
(1) Following this combination procedure the patients were relieved completely of obstructive jaundice and right upper quadrant pain, leaving only small trocar insertion scars made during the short course of hospitalization.
(2) The sutures exit through the periumbilical trocars.
(3) The trocar mounted on the main stem of the circular stapler allows the stem of the main device to be brought out through the distal staple line.
(4) Only endoscopic cryosurgery enables a precise and exact control by means of viewing through the endoscopic trocar along with simultaneous rectal feeling, both of which enable us to achieve an exact supervision of the size of the subvesically-formed freezing sphere adjacent to the rectum.
(5) These observations suggest that direct trocar insertion is safer for patients in terms of operative time, need for additional CO2, and especially risk of multiple instrument insertions, always a blind procedures with potential for injury.
(6) To the authors' knowledge, there have been no previous reports to describe tumor implants in the abdominal trocar sites after diagnostic laparoscopic biopsies of ovarian tumors of low malignant potential.
(7) Round K-wires with either a diamond point or a high rake-angle trocar point were compared with each other and with C-wires, which have a rounded square cross section and a short diamond point.
(8) In this study a new trocar-cannula-unit(10 French) is introduced, which was used in a prospective randomised comparative study in 74 patients for suprapubic bladder punction.
(9) Two cases of tumor implants occurring in the abdominal trocar sites after diagnostic laparoscopic biopsies of ovarian papillary serous tumors of low malignant potential are presented.
(10) Two additional trocars were inserted at the level of the umbilicus at the anterior axillary lines.
(11) A special trocar permits the introduction of the catheter to be done more gently, causes less scarring, and does away with the lower Dacron cuff.
(12) The equipment consisted of the standard fiberoptic Welch-Allyn pediatric sigmoidoscope modified by replacing the obturator with a sharp pyrimidal trocar.
(13) A small trocar is passed under radiographic control, and balloon dilatation is performed over a guidewire.
(14) The trocar catheter was found to be a simple, practical, and safe instrument for suprapubic bladder drainage.
(15) This patient was a 32-year old woman who had Hulka clip sterilization without any difficulties, using a 10 mm trocar and a Wolff laparoscope, with 3 liter carbon dioxide for induction of pneumoperitoneum.
(16) The authors devised a brain biopsy technique through only one burr hole under real time monitoring, using a small foot-print transducer, 12 mm in diameter, and a special trocar with engraved scales on its surface.
(17) Coaxial trocar technique (19 patients) permits initial insertion of softer and often larger catheters (9-14 French feeding tubes), which are less likely to clog or require exchange; the intragastric balloon support method facilitates trocar insertion.
(18) The device consists of two acrylic cylinders, an acrylic template with an array of holes that serve as guides for trocars, and a cover plate.
(19) The sonographically detectable catheter may be placed via a Seldinger technique or trocar method.
(20) The mark V Filshie clip was applied a few cm from the horn of the uterus with an applicator which was introduced intraperitoneally with a special trocar.