AN ARRANGEMENT FOR TAKING A SAMPLE OF BONE MARROW AND/OR EVACUATING THE SINUSES

摘要

The present invention relates to an arrangement for sinus evacuation and for taking a sample of bone marrow during a bone marrow aspiration procedure as well as a bone marrow biopsy procedure. By applying a longitudinal movement to the needle when the needle is penetrating the bone the penetration force is reduced which lower the risk of penetrating the posterior cortex or the second sinus wall. The arrangement further comprises stopping means that prevents the needle to penetrate deeper than to a predetermined depth. The arrangement further comprises longitudinal movement stopping means that provides for an active break of the longitudinal movement of the needle when the needle has penetrated down to the predetermined depth.