This is voluntary notice.No patient harm.On 3/26/2024 carioquip reported the following regarding findings during preventive maintenance of three cardiopulmonary bypass temperature controllers: upon inspection of internal components, our technician has identified potential contamination with the following units: sn (serial numbers) (b)(6), and (b)(6) (chemical).Our director of epidemiology has reviewed the images and reports taken by our field service technician.Based on what we can see, cardioquip recommends performing a quarterly cleaning & disinfection according to the ifu(instructions for use).Potential contamination in your device may be reduced or eliminated by performing cleaning and disinfection procedures located on pg.55 ¿ 59 of the mch-1000 operator/service manual.Cardioquip recommends using minncare¿ cold sterilant.After the cleaning and disinfection is complete, cardioquip also recommends performing heterotrophic plate count (hpc) testing on the impacted unit(s) to provide a quantitative assessment of water quality.Cardioquip provides hpc test kits to facilities for (b)(6) per kit, and includes detailed instructions, all collection items required to obtain a sample, and testing.An hpc test kit quote is attached.The kit(s) will be shipped to you when we receive a hard copy of the po.Once the water samples are submitted via mail, test results generally arrive in 4-5 business days.If test results come back with an acceptable reading, no action is required and units may be returned to service.If test results come back with a reading greater than 100 cfu/ml, there are several options for remediation including internal water path replacement (iwpr) or cardioquip's trade-in program.A software update was performed for all mch-1000 units, updating units to version 020216.Was this device serviced by a third party servicer? yes.Reference reports: mw5153826, mw5153828.
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