MedicalResp
Starting to get Involved
Hi All,
Supposedly I have a medical device that measures and logs respiratory rate (it is not defined as an Alarm Monitor).
The efficacy of the device in clinical testing is determined with respect to a gold standard measurement (i.e by comparing the respiratory rate measured by the test device an a gold standard method). This is commonly done using a statistical method called BLAND ALTMAN which, in short, provides one with the "mean bias" between the two methods and the limits of agreement (i.e. the limits where 95% of the data will fall with 95% confidence)
For IEC 60601 one must define the Essential Performance which is the clinical function where loss or degradation beyond the limits results in an unacceptable risk.
During the safety and EMC testing we use a simulator that simulates respiration in a constant rate and we measure the respiration rate.
My question is if it is logical to use the same parameter used in the clinical testing - "limits of agreement = +/-X" as the essential performance, thus preforming a statistical post-analysis of the data collected during the safety&EMC tests making sure it does not exceed the pre-defined limits +/-X.
Thanks in advance.
Supposedly I have a medical device that measures and logs respiratory rate (it is not defined as an Alarm Monitor).
The efficacy of the device in clinical testing is determined with respect to a gold standard measurement (i.e by comparing the respiratory rate measured by the test device an a gold standard method). This is commonly done using a statistical method called BLAND ALTMAN which, in short, provides one with the "mean bias" between the two methods and the limits of agreement (i.e. the limits where 95% of the data will fall with 95% confidence)
For IEC 60601 one must define the Essential Performance which is the clinical function where loss or degradation beyond the limits results in an unacceptable risk.
During the safety and EMC testing we use a simulator that simulates respiration in a constant rate and we measure the respiration rate.
My question is if it is logical to use the same parameter used in the clinical testing - "limits of agreement = +/-X" as the essential performance, thus preforming a statistical post-analysis of the data collected during the safety&EMC tests making sure it does not exceed the pre-defined limits +/-X.
Thanks in advance.