公开(公告)号：US20180235635A1

公开(公告)日：2018-08-23

申请号：US15551385

申请日：2017-06-28

Applicant: Norwegian University of Science and Technology (NTNU)

Inventor： Lars Cato REKSTAD ,  Brynjulf YSTGAARD

IPC: A61B17/115 ,  A61B17/072

CPC classification number: A61B17/1155 ,  A61B17/072 ,  A61B2017/07257 ,  A61B2017/1157

Abstract: A surgical stapler 101 comprises a proximal end and a distal end, wherein the proximal end is proximate to the user in use and the distal end is distal from the user in use and an anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 at the distal end for providing resistance to staples during the stapling operation of the surgical stapler. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured to be actuated between a deployed state and a collapsed state. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 comprises a plurality of segments 130, 230, 330, 430, 530, 630, 730, 830, 930 arranged end-to-end. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is elongated in the collapsed state, the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 being elongated generally in a first direction D1. When viewed along the first direction D1 the area covered by the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is greater in the deployed state than the collapsed state. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured such that the segments 130, 230, 330, 430, 530, 630, 730, 830, 930 rotate about a rotation axis along a second direction D2 perpendicular to the first direction D1 when the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is actuated between the deployed and the collapsed states. The anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is configured such that adjacent segments 130, 230, 330, 430, 530, 630, 730, 830, 930 pivot relative to each other about a pivot axis along a third direction D3 perpendicular to the second direction D2 when the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 is actuated between the deployed and collapsed states. The stapler 101 also comprises an actuator mechanism 470, 770, 1070, configured to actuate the anvil 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020, 1120, 1220, 1320 between the deployed and collapsed states, wherein the actuator mechanism 470, 770, 1070 is configured to be controlled from a location on the surgical stapler towards the proximal end.

公开(公告)号：US20210015514A1

公开(公告)日：2021-01-21

申请号：US16623027

申请日：2018-06-08

Applicant: Norwegian University of Science and Technology

Inventor： Per Even STORLI ,  Lars Cato REKSTAD ,  Brynjulf YSTGAARD

IPC: A61B17/29 ,  A61B17/28 ,  A61B17/22

Abstract: A surgical retractor tool for removing an object from the stomach or from the oesophagus. The tool includes a flexible steerable tube for insertion into the body via the oral cavity and a gripper at the distal end of the tube for gripping an object in the stomach or the oesophagus in order to allow for removal of the object from the stomach or the oesophagus. The gripper includes first and second rotatable gripper surfaces and a clamping mechanism for moving the gripper surfaces to clamp the object. The rotatable gripper surfaces are arranged to rotate relative to the tube in order to allow a longitudinal axis of a gripped object to move into alignment with a longitudinal axis of the tube.

公开(公告)号：US20200289121A1

公开(公告)日：2020-09-17

申请号：US16881889

申请日：2020-05-22

Applicant: Norwegian University of Science and Technology

Inventor： Lars Cato REKSTAD ,  Brynjulf YSTGAARD

IPC: A61B17/115 ,  A61B17/072

Abstract: A surgical stapler includes a proximal end and a distal end and an anvil at the distal end for providing resistance to staples during the stapling operation of the surgical stapler. The anvil may include a number of segments arranged end-to-end. The anvil is elongated in the collapsed state, the anvil being elongated generally in a first direction D1. The anvil is configured such that the segments rotate about a rotation axis along a perpendicular second direction D2 when the anvil is actuated between the deployed and the collapsed states. The anvil is configured such that adjacent segments pivot relative to each other about a pivot axis along a third direction D3 when the anvil is actuated between the deployed and collapsed states. The stapler also includes an actuator mechanism, wherein the actuator mechanism is configured to be controlled from a location on the surgical stapler towards the proximal end.