Patent ID: 11406363

Abstract:
A biopsy device (100), comprising: a cannula (102) comprising an elongate cannula body (106) extending between a cannula distal end (108) and a cannula proximal end (110) to define a lumen (112), wherein the cannula comprises a cutting portion at the cannula distal end (108); a stylet (104) comprising an elongate body (116) having a stylet distal end (118) and a stylet proximal end (120), the stylet (104) being slidably disposed within the lumen (112), wherein the stylet (104) comprises a tissue sampling portion (122); and an alignment means (126) arranged to maintain a preferred alignment between the stylet (104) and the cannula (102), wherein the alignment means (126) is arranged to align one or more of: i) relative rotation between the stylet distal end and the cannula distal end; ii) relative flexing between the stylet distal end and the cannula distal end; and iii) relative axial translation between the stylet distal end and the cannula distal end.