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Endoscopic procedure needles designed to inject sclerosing solutions in the treatment of internal hemorrhoids or varicose esophageal varices. These needles usually include high-contrast optic tips for easy visualization; they are usually retractable and lockable for better control and protection of the endoscope. Endoscopic sclerotherapy needles are available in lengths appropriate for use with colonoscopes and upper gastrointestinal tract endoscopes.
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