IP Library Granted Patent US 9,770,306
Granted Patent B2
US 9,770,306 · App. 15/463,815 · Granted Sep 26, 2017

Surgical system for positioning prosthetic component and/or for constraining movement of surgical tool

Inventors: Benny Hagag (Plantation, FL); Hyosig Kang (Weston, FL); Alon Mozes (Miami Beach, FL); Daniel Odermatt (Fort Lauderdale, FL); Brian D. Schmitz (Fort Lauderdale, FL)
Assignee: MAKO Surgical Corp.
A61B34/30A61B17/1655A61B17/1659A61B17/1664A61B17/1684A61B34/20A61F2/34A61F2/36A61F2/4607A61F2/4609A61B2017/00199A61B2017/00477A61B2034/2051
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Quick Facts
Patent No.
US 9,770,306
App. No.
15/463,815
Filed
Mar 20, 2017
Granted
Sep 26, 2017
Kind
B2
Art Unit
3775
USPC
606/99
Abstract

A surgical system for positioning a prosthetic component includes a surgical tool and a force system configured to provide a force to the surgical tool. The system further includes a controller programmed to: compare an actual pose of a prosthetic component engaged by the surgical tool and a target pose of the prosthetic component, and generate control signals that cause the force system to allow movement of the surgical tool within a range of movement and to provide a force to constrain movement of the surgical tool beyond the range of movement. The force resists movement of the surgical tool that would cause substantial deviation between an aspect of the actual pose of the prosthetic component and a corresponding aspect of the target pose. The controller is programmed to generate control signals that cause the force system to maintain the force as the prosthetic component is implanted on the anatomy.

Claims (40)

1. A surgical system for positioning a prosthetic component on an anatomy of a patient, comprising:

a surgical tool;

a force system configured to provide a force to the surgical tool;

a controller programmed to:

compare an actual pose of a prosthetic component engaged by the surgical tool and a target pose of the prosthetic component; and

generate control signals that cause the force system to allow movement of the surgical tool within a range of movement and to provide a force to constrain movement of the surgical tool beyond the range of movement, wherein the force resists manual movement of the surgical tool that would cause substantial deviation between at least one aspect of the actual pose of the prosthetic component and a corresponding aspect of the target pose of the prosthetic component;

wherein the controller is programmed to generate control signals that cause the force system to maintain the force as the prosthetic component is implanted on the anatomy;

wherein the tool comprises an end effector configured to be coupled to a robotic arm and including a first portion configured to engage the prosthetic component and a second portion configured to receive an impact force for implanting the prosthetic component on the anatomy of the patient; and

wherein the end effector comprises:

a mounting portion configured to be coupled to a corresponding mounting portion of the robotic arm such that the mounting portions are fixed relative to one another; and

an operating member configured to translate relative to the coupled mounting portions when the impact force is applied to the second portion of the end effector.

2. The surgical system of claim 1 , wherein the at least one aspect of the actual pose and the corresponding aspect of the target pose include at least one of an angle, an axis, an orientation, a center of rotation, a boundary, and a depth.

3. The surgical system of claim 1 , wherein the target pose includes a planned pose of the prosthetic component implanted on the anatomy and an activation region.

4. The surgical system of claim 3 , wherein the activation region extends beyond a boundary of the planned pose.

5. The surgical system of claim 3 , wherein at least a portion of the planned pose and at least a portion of the activation region coincide.

6. The surgical system of claim 3 , wherein the activation region includes a cylindrical volume coaxial with an axis of the planned pose.

7. The surgical system of claim 3 , wherein the controller is further programmed to:

generate signals to activate the force when at least a portion of the actual pose of the prosthetic component coincides with at least a portion of the activation region of the target pose.

8. The surgical system of claim 1 , wherein the controller is further programmed to:

initiate automatic control of the prosthetic component to substantially align the at least one aspect of the actual pose with the corresponding aspect of the target pose.

9. The surgical system of claim 1 , further comprising a tracking device configured to be positioned on the anatomy of the patient, to track movement of the anatomy relative to the surgical tool during a surgical procedure and create position data representative of the position of the anatomy, and wherein the controller is programmed to generate the control signals based on the position data.

10. A method for controlling a surgical tool while positioning a prosthetic component on an anatomy of a patient:

tracking a surgical tool coupled to a prosthetic component;

comparing, using tracking data, an actual pose of the prosthetic component engaged by the surgical tool and a target pose of the prosthetic component;

controlling movement of the surgical tool within a range of movement and providing a force to constrain movement of the surgical tool beyond the range of movement, wherein the force resists movement of the surgical tool that would cause substantial deviation between at least one aspect of the actual pose of the prosthetic component and a corresponding aspect of the target pose of the prosthetic component;

maintaining the force as the prosthetic component is implanted on the anatomy;

wherein the tool comprises an end effector configured to be coupled to a robotic arm and including a first portion configured to engage the prosthetic component and a second portion configured to receive an impact force for implanting the prosthetic component on the anatomy of the patient; and

wherein the end effector comprises:

a mounting portion configured to be coupled to a corresponding mounting portion of the robotic arm such that the mounting portions are fixed relative to one another; and

an operating member configured to translate relative to the coupled mounting portions when the impact force is applied to the second portion of the end effector.

11. The method of claim 10 , wherein the at least one aspect of the actual pose and the corresponding aspect of the target pose include at least one of an angle, an axis, an orientation, a center of rotation, a boundary, and a depth.

12. The method of claim 10 , wherein the target pose includes a planned pose of the prosthetic component implanted on the anatomy and an activation region.

13. The method of claim 12 , further comprising:

generating signals to activate the force when at least a portion of the actual pose of the prosthetic component coincides with at least a portion of the activation region of the target pose.

14. The method of claim 10 , further comprising:

initiating automatic control of the prosthetic component to substantially align the at least one aspect of the actual pose with the corresponding aspect of the target pose.

15. The method of claim 10 , further comprising:

tracking movement of the anatomy relative to the surgical tool during a surgical procedure;

creating position data representative of the position of the anatomy; and

controlling the surgical tool based on the position data.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 26, 2017
From: HAGAG, BENNY; KANG, HYOSIG; MOZES, ALON; ODERMATT, DANIEL; SCHMITZ, BRIAN D.
To: MAKO SURGICAL CORP.
Reel/Frame 042519/0415 →
Continuity (7)
Division 14628888 · Feb 23, 2015
Division 12894071 · Sep 29, 2010
Provisional Application 61278066 · Oct 1, 2009
Provisional Application 61339460 · Mar 4, 2010
Provisional Application 61339756 · Mar 9, 2010
Provisional Application 61401209 · Aug 9, 2010
Related Publication 20170189203A1 · Jul 6, 2017