Min Wu

Author:

Min Wu

ISBN #:

0387954260

US Patent:

7623702, Nov 24, 2009

Filed:

Apr 27, 2006

Appl. No.:

11/411951

Inventors:

Louis K. Arata - Mentor OH, US
Min Wu - Davie FL, US

Assignee:

Mako Surgical Corp. - Ft. Lauderdale FL

International Classification:

G06K 9/00

US Classification:

382154, 25055923, 356602, 382131, 382203, 600424

Abstract:

A method and apparatus for reconstructing a surface shape of an object having contour lines, includes assigning points to each contour line. A first triangulation scheme is performed with respect to respective points on two adjacently-positioned contour lines, to determine a first surface shape for a portion of the object corresponding to the two contour lines. The first surface shape is checked to determine if the first surface shape is in error. If the first surface shape is not in error, the first surface shape is outputted for the portion of the object as determined by the first triangulation scheme, as a reconstructed surface shape for that portion of the object. If the first surface shape is in error, a second triangulation scheme is performed with respect to the respective points on the two contour lines, to determine a second surface shape for that portion of the object, and the second surface shape is outputted for that portion of the object as determined by the second triangulation scheme, as a reconstructed surface shape.

US Patent:

8249345, Aug 21, 2012

Filed:

Jun 27, 2008

Appl. No.:

12/147997

Inventors:

Min Wu - Davie FL, US
Louis K. Arata - Mentor OH, US

Assignee:

MAKO Surgical Corp. - Fort Lauderdale FL

International Classification:

G06K 9/46

US Classification:

382173, 382100, 382154

Abstract:

Described are computer-based methods and apparatuses, including computer program products, for automatic image segmentation using contour propagation. A path metric of a candidate piece of a contour in a cross-sectional image is calculated to generate a three dimensional model using a plurality of cross-sectional images of an object. Data indicative of the cross-sectional image is stored. A cost of each of a plurality of pixels associated with the candidate piece is calculated using the data, wherein the cost is representative of a likelihood the pixel is on the contour and the cost is based on one or more templates. An orientation change value is calculated for each of the plurality of pixels associated with the candidate piece based on an initial pixel of the candidate piece and the pixel. A ratio of pixels is calculated. The path metric of the candidate piece of the contour is stored, the value of the stored path metric being based on the calculated cost, the calculated orientation change value, and the calculated ratio.

US Patent:

20090160855, Jun 25, 2009

Filed:

Dec 21, 2007

Appl. No.:

11/963562

Inventors:

Min Wu - Fort Lauderdale FL, US

Assignee:

MAKO Surgical Corp. - Fort Lauderdale FL

International Classification:

G06T 17/00
G06T 11/40

US Classification:

345420, 345552

Abstract:

The description relates to surgical computer systems, including computer program products, and methods for cumulative buffering for surface imaging. A display image is buffered that has been saved from a previous update. A model representing a tool is subtracted from the buffered display image. The subtracted display image is displayed using a CSG technique at a fixed angle. The subtracted display image is saved. This process is repeated so that the displayed image is cumulatively changed with each change in location of the model representing the tool.

US Patent:

20230000569, Jan 5, 2023

Filed:

Sep 13, 2022

Appl. No.:

17/943314

Inventors:

- Weston FL, US
Joseph J. Bos - Kalamazoo MI, US
Tim Perez - Plantation FL, US
Min Wu - Weston FL, US
Saul Najera - Boca Raton FL, US
Robert A. Brindley - Delton MI, US

Assignee:

MAKO Surgical Corp. - Weston FL

International Classification:

A61B 34/20
A61B 17/70
A61B 90/00
A61B 17/00
A61B 17/56

Abstract:

A fiber optic tracking sensor includes an outer tube, a plurality of optical fibers within the outer tube and including a central optical fiber and a plurality of additional optical fibers, and one or more structural members within the outer tube and configured to provide a spacing between the plurality of optical fibers such that the central optical fiber is positioned along a central longitudinal axis of the outer tube and the plurality of additional optical fibers are spaced apart from one another and from the central optical fiber.

US Patent:

20210353367, Nov 18, 2021

Filed:

Jul 28, 2021

Appl. No.:

17/387643

Inventors:

- Weston FL, US
Hyosig Kang - Weston FL, US
Snehal Kasodekar - Weston FL, US
Matt Harrow - Weston FL, US
Jienan Ding - Weston FL, US
Ta-Cheng Chang - Weston FL, US
Min Wu - Weston FL, US
Jean Gonzalez - Weston FL, US
Peter Ebbitt - Weston FL, US

Assignee:

MAKO Surgical Corp. - Weston FL

International Classification:

A61B 34/20
A61B 34/30
A61B 90/00
A61B 5/055
A61B 6/03
A61B 8/08
A61B 17/15
A61B 17/17

Abstract:

A method for intraoperative planning and facilitating a revision arthroplasty procedure includes displaying a virtual model of a bone, capturing positions of a tracked probe as the tracked probe contacts points at a perimeter of a primary implant component coupled to the bone, generating a virtual representation of an interface between the primary implant component and the virtual model of the bone using the positions of the tracked probe, planning a bone resection using the virtual representation of the interface, and guiding execution of the bone resection.

US Patent:

20210113278, Apr 22, 2021

Filed:

Dec 28, 2020

Appl. No.:

17/134774

Inventors:

- Weston FL, US
Hyosig Kang - Weston FL, US
Snehal Kasodekar - Weston FL, US
Matt Harrow - Fort Lauderdale FL, US
Jienan Ding - Weston FL, US
Ta-Cheng Chang - Fort Lauderdale FL, US
Min Wu - Fort Lauderdale FL, US
Jean Gonzalez - Fort Lauderdale FL, US
Peter Ebbitt - Fort Lauderdale FL, US

Assignee:

MAKO Surgical Corp. - Weston FL

International Classification:

A61B 34/20
A61B 34/30
A61B 90/00
A61B 5/055
A61B 6/03
A61B 8/08
A61B 17/15
A61B 17/17

Abstract:

A method of performing a procedure includes preparing a subject, gaining access to a portion of the subject with a first instrument, removing a first portion of the portion of the subject with the first instrument, gaining access to the portion of the subject with a tracked instrument, moving the tracked instrument to a surface revealed by removal of at least the first portion from the portion of the subject, tracking the tracked instrument while moving at least the tracked instrument to the surface, and determining a representation of the surface based on the tracking the tracked instrument.

US Patent:

20200337784, Oct 29, 2020

Filed:

Jul 8, 2020

Appl. No.:

16/923192

Inventors:

- Fort Lauderdale FL, US
Hyosig Kang - Weston FL, US
Snehal Kasodekar - Weston FL, US
Matt Harrow - Fort Lauderdale FL, US
Jienan Ding - Weston FL, US
Ta-Cheng Chang - Fort Lauderdale FL, US
Min Wu - Fort Lauderdale FL, US
Jean Gonzalez - Fort Lauderdale FL, US
Peter Ebbitt - Fort Lauderdale FL, US

Assignee:

MAKO Surgical Corp. - Fort Lauderdale FL

International Classification:

A61B 34/20
A61B 34/30
A61B 90/00
A61B 5/055
A61B 6/03
A61B 8/08
A61B 17/15
A61B 17/17

Abstract:

A method for intraoperatively planning and facilitating a revision arthroplasty procedure. The method includes capturing positions of a tracked probe as the tracked probe contacts an interface area between a bone and a primary implant component implanted on the bone, intraoperatively generating a virtual boundary corresponding to a portion of the interface area to be removed to detach the primary implant component from the bone using the positions of the tracked probe and without use of pre-operative medical imaging, facilitating removal of the primary implant component from the bone by providing a constraint on operation of a cutting tool while the cutting tool removes the portion of the interface area, the constraint based on a relationship between the cutting tool and the virtual boundary.

US Patent:

20200188036, Jun 18, 2020

Filed:

Dec 12, 2019

Appl. No.:

16/712432

Inventors:

- Fort Lauderdale FL, US
Joseph J. Bos - Kalamazoo MI, US
Tim Perez - Plantation FL, US
Min Wu - Weston FL, US
Saul Najera - Boca Raton FL, US
Robert A. Brindley - Delton MI, US

International Classification:

A61B 34/20
A61B 17/70

Abstract:

A fiber optic tracking sensor includes at least three optical fibers, each optical fiber having a plurality of fiber optic sensors along a length of a sensing portion of the sensor. A shape-memory member is coupled to the three optical fibers and provides support to the sensor. The at least three optical fibers are arranged in a spaced apart relationship, each offset from a central longitudinal axis of the sensor.