The reported 7.0mm custom made tracheostomy tube was returned for investigation.Visual inspection found the device to be in good condition.During functional testing, a standard syringe was used to inflate the device cuff with 16cc's of air; the cuff inflated and deflated without difficulty.The cuff was then inflated with 16cc's of water; upon deflation, all 16cc's of water was removed.The cuff was then re-inflated with water and left to rest for 24 hours; no leaks were observed.The cuff was then inflated with air and submerged in water, no bubbles (indicating a leak) were observed escaping from the device.Investigation found the device to operate as intended.Mfr# clarification: new registration number 3012307300 (b)(4) has been received, however, this initial mdr was filed under the prior registration number 2183502 (b)(4).
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