National University of Ireland, Galway

National University of Ireland

Edmund Brennan

Damien Long

Eugene Skelton

Anthony Wright

Jimmy Eaton-Evans

Jonathan Bouchier-Hayes

A biopsy device comprising: a cannula comprising an elongate cannula body extending between a cannula distal end and a cannula proximal end to define a lumen, wherein the cannula comprises a cutting portion at the cannula distal end; a stylet comprising an elongate body having a stylet distal end and a stylet proximal end, the stylet being slidably disposed within the lumen, wherein the stylet comprises a tissue sampling portion. The tissue sampling portion is formed by a notch in the body of the stylet at or near the stylet distal end. The biopsy device further comprises an actuator assembly, the actuator assembly arranged to move the cannula relative to the stylet between a retracted position in which at least part of the tissue sampling portion is exposed and an extended position in which the cannula at least partly surrounds the tissue sampling portion. The actuator assembly comprises a cannula actuator moveable between a primed configuration and an actuated configuration to move the cannula between the retracted position and the extended position. The biopsy device further comprises a selective coupling mechanism arranged to provide a selective coupling between the actuator assembly and one or both of the stylet and the cannula.

Biopsy device

A biopsy device (), comprising: a cannula () comprising an elongate cannula body () extending between a cannula distal end () and a cannula proximal end () to define a lumen (), wherein the cannula comprises a cutting portion at the cannula distal end (); a stylet () comprising an elongate body () having a stylet distal end () and a stylet proximal end (), the stylet () being slidably disposed within the lumen (), wherein the stylet () comprises a tissue sampling portion (); and an alignment means () arranged to maintain a preferred alignment between the stylet () and the cannula (), wherein the alignment means () 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.

Growing community of inventors

Nenagh, Ireland

Edmund Brennan