Endourology Glossary


Ablation The removal of tissue, abnormal growth, a tumor, by an electrode or other mechanical means.

Anastomosis A joining or rejoining of two vessels that were separated surgically or traumatically.

Antegrade In reference to the urinary system, urine moving through the ureter from the kidney downward toward the bladder.

ATMs Atmospheric Pressure Measurement equals 14.7 lbs/ sq inch

Axial Forward motion

Biopsy Removal of a histologic sample of tissue of microscopic evaluation by a pathologist.

Blind Procedure A basketing procedure performed under fluoroscopy and without direct visualization through a cystoscope

BPH Benign Prostatic Hyperplasia— A non-cancerous enlargement of the prostate gland

Burst Pressure Refers to the maximum amount of atmospheric pressure that can be exerted in the balloon before it is unstable

Calculus A kidney stone.

Calyces (plural for “calyx”) Cup-shaped structures of the body; one example is the renal calyx, which collects urine in the kidney and directs it into the ureter

Capture Rate Ability to access and hold a calculi during removal or manipulation, defined as a percentage (%)

Chips Small excised pieces of prostatic tissue that are used for pathology and weighed to determine the size do the resected prostate gland.

Coagulating Resector Name describing the performance feature of patented Bard electrode which resects like a cutting loop while simultaneously providing a deep zone of coagulation

Coagulation Occurs above 70° C and 99° C.  State where the tissue is heated and the callogens are converted to glucose.

Control Ability to position the dilating catheter where you want

Cryo “Freezing cold” – used in a process to product very low temperature.

Cutting loop A standard wire cutting loop electrode used for over 50 years in Urology.

Cysto (cysto suite) Term used for the procedure room used by urologists.

Cystoscope An endoscope used for examination of the urethra and bladder diameter.

Cystostomy Re-implantation of the ureter to a new location on the bladder wall.

Cytology The study of cells.  A Cytology brush is passed through a scope into the ureter and manipulated for the collection of cells

Desiccate To destroy tissue through electrical energy by dehydrating cells within tissue

Digital Rectal Exam The internal examination and palpation of the prostate gland performed through the rectum.

Dilation Force The ability to expand or open a lumen to gain access or allow drainage

Dimensional Lowest pressure needed to meet your pre-determined size

Distal Far from the point of attachment of origin

Drivewire Core component which actually exerts force on device to cause the action required

Encrustation Material produced by the body, which collects/builds up on stent causing decreased urine flow or blockage

Fibrosis Abnormal formation of fibrous tissue.

Filiform tips “Guidewire-like” extensions attached to the end of the ureteroscopic devices to aid in placement or advancement of instrumentation.

Fluro Fluroscopy – the use of a fluoroscope, or x-ray, for medical diagnosis or for testing using roentgen rays

French Size method of specifying small sizes of medical devices developed in France. [Fr], (1/3 of a millimeter(4mm =), 12Fr):

Helical basket Basket with round and not flat wires that make up a helical shape.

Hemostasis Arresting/stopping blood flow

Hydronephrosis Distention of the pelvis and calices of the kidney with urine

Intramural ureter Opening of ureter within the wall of the bladder, 2-4cm section of ureter that starts at wall of bladder and ends at ureteral orifice, narrowest portion of ureter, portion of the ureter that often requires dilation to pass instruments to upper urinary tract

Invasive Involving cutting or puncturing the skin.

Joules Surgical measurement of laser energy

KTP Type of laser used in surgery

KUB An x-ray that displays the kidney, ureter and bladder.

Laser Equipment for surgical application of Lightwave Amplification by Stimulated Emission of Radiation.

Modality Manner or form of a therapeutic method.

Morbidity Result of disease.

Mortality Death.

Neoplasm A new and abnormal formation of tissue, as a tumor

Obturator The obturator is placed in the sheath to provide a smooth blunt tip for insertion into the urethra

Patency The state of being freely open or staying open

Profile Widest point on the outside of the Catheter shaft where the balloon is attached, when the balloon is deflated

Prostate A gland surrounding the bladder neck and urethra in males.

Proximal Nearest to the body or other point regarded as the center or nearest to the point of attachment

Purge Rid the syringe of air bubbles

Pyeloplasty A repair procedure on the pelvis of the kidney

Radial Outward motion

Radiopaque Easy to see on a x-ray.

Resection The excision of all or part of an organ or tissue

Resectoscope Equipment used for resecting of tissue consisting of a telescope, sheath, working element, and electrode

RF (Radio-Frequency) Energy created by an electrical generator

Sheath The outer most rigid portion of the instrument.  It protects the changeable telescopes and provides the access for irrigation and a channel for instrumentation.

Shoulder The angle from the tip to the working portion of the balloon

Stenosis The narrowing or stricture of a duct or canal

Stricture An abnormal narrowing of a bodily passage (canal, duct, tube) as a result of inflammation, cancer or the formation of scar tissue

Telescope A lens system that allows for visualization.

Thermal Heat or temperature

Tip Area of catheter from the proximal tip of the balloon to the proximal tip of the catheter

Torquability The ability to manipulate and control a device accurately within the body

TRUS TransRectal UltraSound picture of the prostate

TUIP TransUrethral Incesion of the Prostate to relieve

TUR/TURP TransUrethral Resection of the Prostate.

Ureteroplasty A repair operation on the ureter

Ureteroscope (ridged or flexible) Endoscope that is used to visualize the ureters and kidney.

Urethra The tube that carries urine from the bladder to outside the body; in males, its also the channel through which semen is ejaculated.

Vaporization Electrode A RF electrode that explodes the cells within the tissue and vaporizes the tissue.

Working channel A lumen within a scope that supports passage of instrumentation

YAG (Nd:YAG) Type of laser used