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Urethral sounding is the practice of inserting objects (typically made by metal or silicone) into the urethra for sexual gratification. [1] Urethral dilatation is a urological procedure that uses probes called sounds to enlarge the inside diameter of the urethra and locate obstructions in the urethra, or as a treatment for urethral strictures.
Ureteroscopy is an examination of the upper urinary tract, usually performed with a ureteroscope that is passed through the urethra and the bladder, and then directly into the ureter. [1] The procedure is useful in the diagnosis and treatment of disorders such as kidney stones and urothelial carcinoma of the upper urinary tract. [1]
Karl Storz's instruments played a key role in promoting the surgical technique, contributing to the development of the field and expansion of the company. [8] Karl Storz Endoscopy Canada Ltd. was established in December 1995 to offer Canadian customers even more direct support. [24]
Rigid cystoscopy can be performed under the same conditions, but is generally carried out under general anesthesia, particularly in male subjects, due to the pain caused by the probe. The sizes of the sheath of the rigid cystoscope are 17 French gauge (5.7 mm diameter), 19 Fr gauge (6.3 mm diameter), and 22 Fr gauge (7.3 mm diameter).
NOTE: Some published reviews of 4/3 instead cite the (female) "outside diameter" of the lens or mount as ~50mm (and micro-4/3 as ~44mm), [23] and not the appropriate major diameter (D) ~44mm which is the camera body's female mount inside-diameter and the lens's male mount outside-diameter (micro-4/3 ~38mm).
Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...
However a few derivatives are known. 3,4-Diethyl-1,2-dithietane 1,1-dioxide has one sulfur fully oxidised. Dithiatopazine is a tricyclic compound with the -S-S- as a bridge. [ 1 ] [ 2 ] 1,2-Dithietan-3-one, the ketone of 1,2-dithietane, was produced in 2008 by reacting α-dithiolactone with ethoxycarbonylformonitrile oxide .
Although the video camera tube is now technologically obsolete, the size of solid-state image sensors is still expressed as the equivalent size of a camera tube. For this purpose a new term was coined and it is known as the optical format. The optical format is approximately the true diagonal of the sensor multiplied by 3 ⁄ 2. The result is ...