Which is not a use of biodegradable bio-ceramics?

Biodegradable bio-ceramics are materials that can be used in various medical applications due to their ability to mimic natural bone properties and gradually degrade over time within the body. Their primary uses often involve applications directly related to bone repair and tissue engineering.

Drug-delivery devices utilize biodegradable materials to release therapeutic agents in a controlled manner over time. Repairing materials for herniated discs is another application, as bio-ceramics can help in regenerating or stabilizing the spine. Additionally, space-filling materials for areas of bone loss leverage the osteoconductive properties of bio-ceramics, which help facilitate new bone growth.

In contrast, transfusion tubing is primarily designed for pathways to transport blood or fluids in a clinical setting and requires materials that are not biodegradable to maintain integrity and safety over time. Therefore, this option does not align with the typical uses of biodegradable bio-ceramics, making it the correct choice.