Data Migration from another EMR System

When the EMR system is changed, the perimetric (visual field) data can be taken over completely, if they were stored with PeriData. We like to consult and support you in this action. Some information ahead: The method of "data migration" depends on the situation. Usually the old EMR software was conneted to PeriData with the Link Mode. Each patient owns a separate PHF file. The patient number of the EMR determines the name of the PHF file

Situation A: Patient Number unchanged

If the EMR system has changed, but the patient number is unchanged, the PHF files are allocated correctly and can be called out of the new EMR software without any conversion.

Situation B: Change of Patient Number

If the patient number changed, the allocation of patient and PHF file is not correct any more. The data can be rescued, but must be reallocated. There are several options:

Option 1

If the numbers were changed after a rule, e.g. +2,000,000, a file rename program can rename the files. We recommend a rule where only 1 character in the file name has to be changed.

Option 2

If a table with old and new number exists or both numbers are available in the new EMR system as a pair, the EMR provider is able to program a routine that performs the renaming.

Option 3

If an ordered renaming is impossible, the data can be rescued by merging them to a single large file. The old data can be provided in a way that they are stored to the new number when the patient comes for the next visit. That is how it works:

Make at least 1 safety copy of all *.PHF files.

Write into the data directory a batch file (e.Bg. AddPeridata.bat ) containing the commands:
rem %~dp0 is the reference to the data directory
copy   /b   %~dp0\*.phf   %~dp0\OLDDATA.phf
pause

Start the batch file

Move OLDDATA.phf to another folder. Open the file with PeriData. OLDDATA.phd will be written. This may take some time. After that, all examinations should be shown in the database window.

After that, please contact us, and we will prepare the file for the stepwise takeover.

WARNING: These actions are FOR EXPERIENCED USERS ONLY. Data backup prior to the actions is highly recommended.