replace assignment of adsl_filtered with parent_name

Issue from comment here:
NEST/teal.modules.clinical/issues/592#issuecomment-61693

The `adsl_filtered` object should not be hardcoded to be named `adsl_filtered` but the name should be derived from `parent_name`, so that we could have object `bla_filtered` if `parent_name` is `bla`.

If this approach is used, then check all modules to stay consistent.

Provenance:
```
Creator: qit3
```

Start by locating the assignment of the `adsl_filtered` object and trace how `parent_name` is passed into that module. Inspect the other modules for similar hardcoded filtered-object names. Done means the filtered name is derived from `parent_name` consistently across all modules.

Written by the indexing model from the issue text.