Puritan Bennett 840 Series Ventilator PB840 Operators Manual Addendum PN 066009A 09/02 The intended use of the oxygen sensor is to provide the oxygen concentration of the delivered gas at the patient wye (inspiratory-expiratory interface). The oxygen sensor does not control the oxygen level or the flow of gases. The intended use of the devices is as critical care ventilators that provide continuous mechanical ventilation for patients.

Covidien is correcting labeling to clarify the operational life of the oxygen sensor (O2 sensor), PN 4-072214-00 used in the Puritan Bennett" 840, and PN, G-062010-00, used in Puritan Bennett" 740, and760 ventilator systems. The Operators Manual for PB840 states a nominal life of one year and the Addendum incorrectly states 2 years.

The firm, Covidien, sent an "URGENT MEDICAL DEVICE VOLUNTARY FIELD CORRECTION" letter dated January 24, 2014 to its Consignees/customers via certified mail. The letter described the product, problem and actions to be taken. The customers were instructed to read and understand the enclosed information; communicate this information to those who need to be aware of this labeling update; for the Puritan Bennett 840 ventilator only: If you have addendum P/N 066009A 09/02, remove and discard the addendum and replace it with the new information in Attachment I; for the Puritan Bennett 740 and 760 ventilators only: Add the new information in Attachment I; Ensure all O2 sensors in use or in inventory conform to the instructions in this notification. to your current operators manual and service manual, and read and understand the warnings, cautions and notes related to safety, ventilator use and operation that are contained in the Preface of the Operators Manuals. are asked to remove incorrect labeling and replace with the revised labeling. Covidien enclosed a labeling update (Attachment I) which provides detailed information related to the life of oxygen sensors used with the Puritan Bennett 840, 740 and 760 ventilators. Covidien has validated another oxygen sensor, P/N 10097559, for use in the Puritan Bennett 840, 740 and 760 ventilators. Information about that sensor is also included in the update in Attachment I. Should you have any questions regarding this letter or to report any issues with the Puritan Bennett" 840, 740 or 760 ventilators contact our Technical Support Department @ 1-800-255-6774, option 4, then option 1, to ensure proper device reporting procedures are followed.