(n.) The name of various instruments for passing along mucous canals, esp. applied to a tubular instrument to be introduced into the bladder through the urethra to draw off the urine.
Example Sentences:
(1) The catheter must be meticulously fixed to the skin to avoid its movement.
(2) Technical factors that account for increased difficulty in these patients include: problems with guide catheter impaction and ostial trauma; inability to inflate the balloon with adequate guide catheter support; and need for increased intracoronary manipulation.
(3) A new balloon catheter has been developed for angioplasty.
(4) Using mini-pigs with an indwelling vascular catheter, the pharmacokinetics of chloramphenicol were investigated in healthy and liver-damaged animals.
(5) Then the esophagogastric variceal network was thrombosed by means of a catheter introduced during laparotomy, which created a portoazygos disconnection.
(6) A quadripolar catheter was positioned either at the site of earliest ventricular activation during induced monomorphic ventricular tachycardia or at circumscribed areas of the left ventricle.
(7) External phonocardiography performed at the time of cardiac catheterization revealed that this loud midsystolic click disappeared whenever a catheter was positioned across the mitral valve.
(8) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
(9) After 1 year, anesthesia was induced with chloralose and an electrode catheter placed at the right ventricular apex.
(10) Catheters containing 0% and 10% heparin were compared in each individual using ultrasound microflow velocimetry, permeability test, sequential determinations of activated partial thromboplastin time, heparin levels and generation of Fibrinopeptide A, beta thromboglobulin and Platelet factor 4.
(11) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
(12) In one case an infection of the axillary region developed, which disappeared after removal of the catheter without any consequences.
(13) The complication might have been prevented by measurements of U and I, reflecting changes in impedance or by measurements of catheter tip temperature (T).
(14) In all patients a Tenckoff's catheter for peritoneal dialysis was introduced and peritoneal effusion extracted and measured.
(15) A fiberoptic flow-directed catheter inserted into the hepatic vein continuously measures hepatic venous oxygen hemoglobin saturation (ShvO2).
(16) The complex problems have been successfully managed with novel guiding catheter shapes and ultralow profile balloons.
(17) We present the results of giving continuous positive airway pressure (CPAP) via a single nasal catheter to 20 preterm infants.
(18) An intravenous catheter system for long-term (at least 6-8 weeks) parenteral nutrition of unrestrained rats is described.
(19) By using these larger catheters, the surgeon will not lose the option of using isosmotic preparations.
(20) Indirect methods to evaluate left ventricular function included the use of the Swan-Ganz catheter for pulmonary capillary wedge pressure measurement, systolic time intervals, and cardiac output.
Tube
Definition:
(n.) A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.
(n.) A telescope.
(n.) A vessel in animal bodies or plants, which conveys a fluid or other substance.
(n.) The narrow, hollow part of a gamopetalous corolla.
(n.) A priming tube, or friction primer. See under Priming, and Friction.
(n.) A small pipe forming part of the boiler, containing water and surrounded by flame or hot gases, or else surrounded by water and forming a flue for the gases to pass through.
(n.) A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm.
(n.) One of the siphons of a bivalve mollusk.
(v. t.) To furnish with a tube; as, to tube a well.
Example Sentences:
(1) Carbon dioxide (CO2) levels, volumes, and temperatures of expired gas were measured from the tracheal and esophageal tubes.
(2) These organic compounds were found to be stable on the sorbent tubes for at least seven days.
(3) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
(4) Average fluoroscopy time per procedure was 27.8 minutes of which 15.1 minutes were for nephrostomy tube insertion and 12.7 minutes were for calculi extraction.
(5) Cells (1 x 10(5)) were seeded in 12- x -75-mm tissue culture tubes and incubated with various doses of IL-1 beta, IL-1 alpha, TNF-alpha, and IFN-gamma, alone or in specific combinations, for 15 min, two, 12, 24, and 72 h. PGE concentrations in the media were measured by radio-immunoassay.
(6) This attack can take place during organogenesis, during early differentiation of neural anlagen after neural tube closure or during biochemical differentiation of the brain.
(7) 16 tube (usually a Baker tube) was inserted by gastrostomy and advanced distally into the colon.
(8) At first, immunofluorescence demonstrated the presence of laminin-binding sites at the surface of germ tubes.
(9) By 3 d in the chick embryo, the first neurons detected by antibodies to Ng-CAM are located in the ventral neural tube; these precursors of motor neurons emit well-stained fibers to the periphery.
(10) The flow of a specified concentration of test gas exits from the mixing board, enters a distributing tube, and is then distributed equally to 12 chamber tubes housing one mouse each.
(11) The X-ray tube rotates outside the detector array at the rate of one revolution per second.
(12) Predominantly observed defects included neural crest cells in ectopic locations, both within and external to the neural tube, and mildly deformed neural tubes containing some dissociating cells.
(13) To provide a seal with low pressure-high volume cuffed tubes, cuff sizes of 20.5 mm and 27.5 mm are recommended for female and male patients, respectively.
(14) In a double-blind trial, 50 patients with subcostal incisions performed for cholecystectomy or splenectomy, received 10 ml of either 0.5% bupivacaine plain or physiological saline twice daily by wound perfusion through an indwelling drainage tube for 3 days after operation.
(15) Since the early 1960's nasotracheal tubes have been used for neonates with primary respiratory diseases which necessitated positive pressure ventilation.
(16) Multiple blood samples were obtained over one dosing interval following oral CyA administration in eight liver transplant patients before and after T-tube clamping.
(17) Capnometry was performed through the lumen (CO2d) and the proximal end of the endotracheal tube (CO2p).
(18) The normal tissues included the ovary, fallopian tube, uterine endometrium, uterine cervix, and vagina.
(19) A survey into the current usage of tracheal tubes and associated procedures, such as various sedation regimes and antacid therapy, in intensive care units was carried out in Sweden by sending a questionnaire to physicians in charge of intensive care units in 70 acute hospitals which included seven main teaching hospitals.
(20) The NJ tubes remained in place an average of 13 days, and the GJ tubes remained in place an average of 37 days.