Surgical robot

Patent metadata

Field	Value
Publication number	US-9974619-B2
Application number	US-201514619978-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Feb 11, 2015
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A modular reconfigurable surgical robot for use in association with a surgical tool is disclosed. The surgical robot includes a linear module for linear movement; a turret module for rotational movement, and elbow roll module for rotational movement, and a wrist tilt module for rotational movement. The turret module has a turret rotational axis. The elbow roll module for rotational has an elbow roll rotational axis at an angle to the turret rotational axis. The wrist tilt module has a wrist tilt rotational axis at an angle to the turret rotational axis and the elbow roll rotational axis. The linear module, turret module, elbow roll module and wrist tilt module are operably connectable together to form the surgical robot and one of the modules is operably connectable to the surgical tool. The surgical robot may include an arch device unit attachable to one of the other modules.

First claim

What is claimed is:

1. A modular reconfigurable surgical robot for use in an MRI and for use in association with a surgical tool comprising:
a linear module for linear movement having a linear movement axis;
a turret module for rotational movement having a turret rotational axis;
an elbow roll module for rotational movement having an elbow roll rotational axis being at an angle to the turret rotational axis;
a wrist tilt module for rotational movement having a wrist tilt rotational axis being at an angle to the turret rotational axis and being at an angle to the elbow roll rotational axis;
wherein the linear module, turret module, elbow roll module and wrist tilt module are operably connectable together to form the surgical robot and one of the turret module, elbow roll module and wrist tilt module is operably connectable to the surgical tool;
wherein the linear module moves the module operably connectable to the surgical tool parallel to the linear movement axis of the linear module; and
wherein the modules of the surgical robot are re-configurable in a plurality of different configurations such that the surgical robot fits within an MRI.

2. The modular reconfigurable surgical robot of claim 1 wherein the linear movement of the linear module defines a z axis, the turret rotational axis is an axis parallel to the z axis; the elbow roll rotational axis is around an x axis and the x axis is generally orthogonal to the z axis; and the wrist tilt rotational axis is around a y axis and the y axis is generally orthogonal to the z axis and transverse to the x axis.

3. The modular reconfigurable surgical robot of claim 1 further including a penetration module connectable to the surgical robot and the surgical tool is attachable to the penetration module.

4. The modular reconfigurable surgical robot of claim 3 further including a turret elbow connection module connectable to the turret module and the elbow roll module.

5. The modular reconfigurable surgical robot of claim 4 further including a roll connection unit connectable to the wrist tilt module and the elbow roll module.

6. The modular reconfigurable surgical robot of claim 3 wherein the penetration module includes a lead screw, a nut, and a gear mechanism, the gear mechanism being operably connected to a motor.

7. The modular reconfigurable surgical robot of claim 6 wherein the gear mechanism of the penetration module includes a pair of spur gears and the motor of the penetration module is an ultrasonic rotary motor.

8. The modular reconfigurable surgical robot of claim 3 wherein the surgical tool is a surgical tool module connectable to the penetration module and the surgical tool module includes a lead screw, a nut, and a gear mechanism, the gear mechanism being operably connected to a motor of the surgical tool module.

9. The modular reconfigurable surgical robot of claim 8 wherein the surgical tool module is operably connectable to a drill kit.

10. The modular reconfigurable surgical robot of claim 9 wherein the surgical tool module further includes a timing belt and pulleys operably connectable to the drill kit.

11. The modular reconfigurable surgical robot of claim 9 wherein the surgical tool module includes a pneumatic unit operably connectable to the drill kit.

12. The modular reconfigurable surgical robot of claim 9 wherein the drill kit includes a trocar, a drill, and a guide stylet.

13. The modular reconfigurable surgical robot of claim 9 wherein the penetration module further includes an adapter and the surgical tool module is attachable to the adapter.

14. The modular reconfigurable surgical robot of claim 13 wherein the adapter includes a nut portion, a removable front adapter portion connectable to the nut portion and a removable front closure portion connectable to the removable front adapter portion.

15. The modular reconfigurable surgical robot of claim 14 wherein the surgical tool module includes a removable support releasably connectable to a slot plate.

16. The modular reconfigurable surgical robot of claim 15 wherein the removable front adapter portion, the removable front closure portion, the removable support and the drill kit are all sterilizable using existing medical sterilization systems.

17. The modular reconfigurable surgical robot of claim 8 wherein the motor of the surgical tool module is an ultrasonic rotary motor.

18. The modular reconfigurable surgical robot of claim 1 wherein the linear module includes a lead screw, a nut, and a gear mechanism, the gear mechanism being operably connected to a motor.

19. The modular reconfigurable surgical robot of claim 18 wherein the gear mechanism of the linear module includes a worm and a worm gear and the motor is an ultrasonic rotary motor.

20. The modular reconfigurable surgical robot of claim 19 wherein the linear module includes a hard stop to limit movement of the nut.

21. The modular reconfigurable surgical robot of claim 1 wherein the turret module includes a shaft and a gear mechanism operably connected to a motor.

22. The modular reconfigurable surgical robot of claim 21 wherein the gear mechanism of the turret module includes a worm and a worn gear and the motor of the turret module is an ultrasonic rotary motor.

23. The modular reconfigurable surgical robot of claim 22 wherein the turret module includes a hard stop to limit the rotation of the shaft.

24. The modular reconfigurable surgical robot of claim 1 wherein the elbow roll module includes a shaft and a gear mechanism operably connected to a motor.

25. The modular reconfigurable surgical robot of claim 24 wherein the gear mechanism of the elbow roll module includes a worm and a worm gear and the motor of the elbow roll module is an ultrasonic rotary motor.

26. The modular reconfigurable surgical robot of claim 25 wherein the elbow roll module includes a hard stop to limit the rotation of the shaft.

27. The modular reconfigurable surgical robot of claim 1 wherein the wrist tilt module includes a pair of shafts and a pair of gear mechanism operably connected to a pair of motor.

28. The modular reconfigurable surgical robot of claim 27 wherein each gear mechanism of the wrist tilt module includes a worm and a worm gear and the motor of the wrist tilt module is an ultrasonic rotary motor.

29. The modular reconfigurable surgical robot of claim 28 wherein the wrist tilt module includes a hard stop to limit the rotation of the shaft.

30. The modular reconfigurable surgical robot of claim 1 further including an arch device unit operably attachable to one of the linear module, the turret module, the elbow roll module and the wrist tilt module.

31. The modular reconfigurable surgical robot of claim 30 wherein the arch device unit further includes a pair of linear actuators at either end of an arch frame.

32. The modular reconfigurable surgical robot of claim 31 wherein each linear actuator of the arch device unit includes an ultrasonic motor operably connected to a lead screw and a pair of carriages moveably connected to the lead screw and whereby the pair of carriages is connected to the arch frame and activating the ultrasonic motor moves the carriage along the lead screw.

33. The modular reconfigurable surgical robot of claim 32 wherein each linear a

Assignees

• Goldenberg Andrew A
• Yang Yi
• Ma Liang
• Amaral Joao Guilherme
• Drake James
• Looi Thomas
• Eng Services Inc
• Hospital For Sick Children

Inventors

• Goldenberg Andrew A
• Yang Yi
• Ma Liang
• Amaral Joao Guilherme
• Drake James
• Looi Thomas

Classifications

• A61B2017/3409

  including needle or instrument drives · CPC title

• A61B2034/304

  including a freely orientable platform, e.g. so called 'Stewart platforms' · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B2090/374

  NMR or MRI · CPC title

• A61B2034/305

  Details of wrist mechanisms at distal ends of robotic arms · CPC title