How to Return an Instance of the Loaded Model Class Rather Than The Loader

$this->load->model is meant for loading in script file (think of it as making this model code available in principle), not actually associate it to variables.

You probably want to get to is something like this:

PHP Code:

$this->load->model('model_name');
// ... 

$a = new Model_name('db_xxx', 'table_yyy');
$b = new Model_name('db_yyy', 'table_xxx');