Looking for a lift in stairwell for groceries, laundry, garbage, etc

I am looking for a lift to attach to internal stairwell... to take groceries, books, a shopping bag, any item... from the 1st floor to the 2nd floor... and to take garbage bag or other heavy items from the 2nd floor to the ground floor.

I did not need a chair lift.

I am still able to walk up and down stairs, but it's the holding onto items and railing at the same time, especially having to carry things down the step.

I have no area for an elevator or dumbwaiter, just a flight of stairs.

Thank you very much.