The Olympus MH‑443 is a precision suction valve designed for Olympus EVIS 140/160 series endoscopes, providing fingertip control of suction to clear fluids, mucus, and blood while maintaining visualization during GI, pulmonary, and other flexible endoscopy procedures. This reusable component fits into the endoscope’s suction cylinder and is intended to be cleaned and high‑level disinfected or sterilized between cases according to Olympus reprocessing guidelines.

Key features

• Compatible with Olympus EVIS 140/160 series gastroscopes, colonoscopes, and duodenoscopes as part of the standard valve set (with MH‑438 air/water and MB‑358 biopsy valves).
  
• Durable, reusable construction engineered for repeated clinical use and validated reprocessing, helping maintain reliable suction performance over time.
  
• Provides consistent suction control at the thumb position, supporting efficient removal of fluids and debris for clear endoscopic visualization and smoother workflow.