The aim of the study will examine the performance of two platelet sequestration devices. Platelets are a component of blood and their main function is to prevent bleeding and aid healing. The sponsor plans to investigate the ability of two devices to concentrate platelets while maintaining their viability. In order to test this a blood sample will be collected from you.

To be eligible you must:
- Be a healthy male or healthy female
- You must not be taking any blood thinning or anti-inflammatory medication, or aspirin.