(b)(4) section g4: the rt200 adult dual heated breathing circuit is not sold in the usa but it is similar to a product which is sold in the usa.The 510(k) for that product is k983112.Section h11: method: the subject mr290v vented autofeed humidification chamber were requested to be provided to fisher & paykel healthcare new zealand, however, neither were provided for evaluation.Our investigation is therefore based on the information provided by the customer and our knowledge of the product.Results: the healthcare facility reported that a (b)(6) vented autofeed humidification chamber provided with a rt200 adult dual heated breathing circuit was leaking water during patient use.Conclusion: without the complaint device or further details on the location of the leakage, we are unable to determine the cause of the reported issue.Every (b)(6) vented autofeed humidification chamber is pressure tested following the manufacturing process to check for any leaks present in the chamber due to cracks and other causes.Any chamber which fails this test is rejected.In addition, the pressure test is followed by a visual inspection of each chamber.No cracks in the chamber dome are acceptable.Any chamber that fails this inspection is rejected.The subject (b)(6) vented autofeed humidification chamber would have met the required specification at the time of production.Our user instructions that accompany the rt200 adult dual heated breathing circuit state the following: - "do not soak, wash, sterilize, or reuse this product.Avoid contact with chemicals, cleaning agents, or hand sanitizers." - "ensure appropriate ventilator or flow source alarms are set before connecting breathing set to patient." - "perform a pressure and leak test on the breathing system and check for occlusions before connecting to a patient." - "use of the mr290 above the maximum operating pressure may lead to cracking, water leakage and, on rare occasions could lead to a loss of ventilation pressure.".
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