Patents by Inventor Ilwhan Park

Ilwhan Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10993817
    Abstract: Aspects of the present disclosure involve systems, methods, computer program products, and the like, for utilizing a series of images of a patient's anatomy to determine a cut plane for use during a hip replacement procedure. To determine a cut plane for use during the procedure, the computer program determines a best fit line through the center of the neck of the femur, as well as a best fit line through the femoral shaft. In one particular embodiment, a cut plane through the femur may then be determined as perpendicular to the center line through the neck of the femur. Further, the location of these features in the images may be determined by analyzing the gray scale value of one or more pixels around a selected point on the image. The pixel with the lowest gray scale value may then be assumed to be the edge of the cortical bone in the 2D image.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 4, 2021
    Assignee: UNIK ORTHOPEDICS INC.
    Inventor: Ilwhan Park
  • Patent number: 10993744
    Abstract: A method of planning an arthroplasty procedure on a femur and tibia of a patient. The method includes receiving a first two-dimensional image of the femur and the tibia, and identifying, in the first two-dimensional image, a proximal femur feature, a distal tibia feature, and a bone contour. The method further includes running a transformation process to align a bone model representative of the femur and the tibia into a coordinate system with the first two-dimensional image, the bone model having a bone model contour that is aligned with the bone contour of the femur and the tibia in the first two-dimensional image. And the method further includes applying an implant model to the bone model in order to determine coordinate locations for the arthroplasty resection.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 4, 2021
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella, Elena I. Pavlovskaia, Boris E. Shpungin
  • Publication number: 20210000511
    Abstract: A method of planning an arthroplasty procedure on a femur and tibia of a patient. The method includes receiving a first two-dimensional image of the femur and the tibia, and identifying, in the first two-dimensional image, a proximal femur feature, a distal tibia feature, and a bone contour. The method further includes running a transformation process to align a bone model representative of the femur and the tibia into a coordinate system with the first two-dimensional image, the bone model having a bone model contour that is aligned with the bone contour of the femur and the tibia in the first two-dimensional image. And the method further includes applying an implant model to the bone model in order to determine coordinate locations for the arthroplasty resection.
    Type: Application
    Filed: September 11, 2020
    Publication date: January 7, 2021
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella, Elena I. Pavlovskaia, Boris E. Shpungin
  • Publication number: 20200337734
    Abstract: Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body cod images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella
  • Publication number: 20200323561
    Abstract: A computer-implemented method of preoperatively planning a surgical procedure on a knee of a patient including determining femoral condyle vectors and tibial plateau vectors based on image data of the knee, the femoral condyle vectors and the tibial plateau vectors corresponding to motion vectors of the femoral condyles and the tibial plateau as they move relative to each other. The method may also include modifying a bone model representative of at least one of the femur and the tibia into a modified bone model based on the femoral condyle vectors and the tibial plateau vectors. And the method may further include determining coordinate locations for a resection of the modified bone model.
    Type: Application
    Filed: May 4, 2020
    Publication date: October 15, 2020
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Charlie W. Chi, Venkata Surya Sarva, Irene Min Choi, Elena Pavlovskaia, Oleg Mishin, Boris E. Shpungin
  • Publication number: 20200261119
    Abstract: A method for planning an arthroplasty procedure on a patient bone. The method may include accessing generic bone data stored in a memory of a computer, using the computer to generate modified bone data by modifying the generic bone data according to medical imaging data of the patient bone, using the computer to derive a location of non-bone tissue data relative to the modified bone data, and superimposing implant data and the modified bone data in defining a resection of an arthroplasty target region of the patient bone.
    Type: Application
    Filed: February 27, 2020
    Publication date: August 20, 2020
    Applicant: Howmedica Osteonics Corporation
    Inventors: Elena Pavlovskaia, Oleg Mishin, Boris E. Shpungin, Ilwhan Park, Venkata Surya Sarva, Irene Min Choi
  • Publication number: 20200205899
    Abstract: Disclosed herein is a surgical guide tool for use in total hip replacement surgery. The surgical guide tool may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Michael Koehle, Lorenzo R. Deveza
  • Patent number: 10687856
    Abstract: A computer-implemented method of preoperatively planning a surgical procedure on a knee of a patient including determining femoral condyle vectors and tibial plateau vectors based on image data of the knee, the femoral condyle vectors and the tibial plateau vectors corresponding to motion vectors of the femoral condyles and the tibial plateau as they move relative to each other. The method may also include modifying a bone model representative of at least one of the femur and the tibia into a modified bone model based on the femoral condyle vectors and the tibial plateau vectors. And the method may further include determining coordinate locations for a resection of the modified bone model.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: June 23, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Charlie W. Chi, Venkata Surya Sarva, Irene Min Choi
  • Patent number: 10617475
    Abstract: Disclosed herein is a method of defining a mating surface in a first side of an arthroplasty jig. The mating surface is configured to matingly receive and contact a corresponding patient surface including at least one of a bone surface and a cartilage surface. The first side is oriented towards the patient surface when the mating surface matingly receives and contacts the patient surface. The method may include: a) identifying a contour line associated with the patient surface as represented in a medical image; b) evaluating via an algorithm the adequacy of the contour line for defining a portion of the mating surface associated with the contour line; c) modifying the contour line if the contour line is deemed inadequate; and d) employing the modified contour line to define the portion of the mating surface associated with the contour line.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 14, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventor: Ilwhan Park
  • Patent number: 10582934
    Abstract: Disclosed herein is a method of creating a customized arthroplasty jig. The method may include: generating two-dimensional MRI images of a patient's joint area to undergo arthroplasty; electronically orienting the two dimensional MRI image slices to account for the patient's joint area being randomly physically oriented in a scanning area of a MRI machine; generating a three-dimensional bone image of at least a portion of a bone of the patient's joint area from the generated two-dimensional MRI images; using the three-dimensional bone image to generate data pertaining to the customized arthroplasty jig, wherein the data includes bone surface information; providing the data to at least one manufacturing device; and employing the bone surface information to cause the at least one manufacturing device to create a surface on the arthroplasty jig configured to matingly receive a surface of the bone.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 10, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Stephen M. Howell
  • Patent number: 10575875
    Abstract: A method for planning an arthroplasty procedure on a patient bone. The method may include accessing generic bone data stored in a memory of a computer, using the computer to generate modified bone data by modifying the generic bone data according to medical imaging data of the patient bone, using the computer to derive a location of non-bone tissue data relative to the modified bone data, and superimposing implant data and the modified bone data in defining a resection of an arthroplasty target region of the patient bone.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: March 3, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventors: Elena Pavlovskaia, Oleg Mishin, Boris E. Shpungin, Ilwhan Park, Venkata Surya Sarva, Irene Min Choi
  • Patent number: 10537391
    Abstract: Disclosed herein is a surgical guide tool for use in total hip replacement surgery. The surgical guide tool may include a customized mating region and a resection guide. The customized mating region and the resection guide are referenced to each other such that, when the customized mating region matingly engages a surface area of a proximal femur, the resection guide will be aligned to guide a resectioning of the proximal femur along a preoperatively planned resection plane.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 21, 2020
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Michael Koehle, Lorenzo R. Deveza
  • Publication number: 20190388123
    Abstract: A method for planning an arthroplasty procedure on a patient bone. The method may include accessing generic bone data stored in a memory of a computer, using the computer to generate modified bone data by modifying the generic bone data according to medical imaging data of the patient bone, using the computer to derive a location of non-bone tissue data relative to the modified bone data, and superimposing implant data and the modified bone data in defining a resection of an arthroplasty target region of the patient bone.
    Type: Application
    Filed: July 25, 2019
    Publication date: December 26, 2019
    Applicant: Howmedica Osteonics Corporation
    Inventors: Elena Pavlovskaia, Oleg Mishin, Boris E. Shpungin, Ilwhan Park, Venkata Surya Sarva, Irene Min Choi
  • Patent number: 10470823
    Abstract: Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 12, 2019
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella
  • Patent number: 10456203
    Abstract: Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 29, 2019
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella
  • Patent number: 10456204
    Abstract: Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 29, 2019
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella
  • Patent number: 10449001
    Abstract: Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 22, 2019
    Assignee: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Keun Song, Oleg Mishin, Michael Santarella
  • Publication number: 20190290292
    Abstract: Arthroplasty jigs and related methods are disclosed. Some of the arthroplasty jigs may comprise a jig body that is configured to align with a surface of a bone, and a positioning component. Certain of the methods may comprise providing such an arthroplasty jig, and aligning the jig body with a surface of a bone so that the positioning component provides at least one of a visible, audible, or tactile indication that such alignment has been achieved. Some of the arthroplasty jigs may comprise a jig body that is configured to align with a surface of a bone, and that is marked with identifying information. Certain of the methods may comprise providing an arthroplasty jig comprising a jig body that is configured to align with a surface of a bone, or providing an arthroplasty jig blank, and marking the arthroplasty jig or the arthroplasty jig blank with identifying information.
    Type: Application
    Filed: June 14, 2019
    Publication date: September 26, 2019
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Charlie W. Chi
  • Publication number: 20190282302
    Abstract: Disclosed herein is a method of defining a mating surface in a first side of an arthroplasty jig. The mating surface is configured to matingly receive and contact a corresponding patient surface including at least one of a bone surface and a cartilage surface. The first side is oriented towards the patient surface when the mating surface matingly receives and contacts the patient surface. The method may include: a) identifying a contour line associated with the patient surface as represented in a medical image; b) evaluating via an algorithm the adequacy of the contour line for defining a portion of the mating surface associated with the contour line; c) modifying the contour line if the contour line is deemed inadequate; and d) employing the modified contour line to define the portion of the mating surface associated with the contour line.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Applicant: Howmedica Osteonics Corporation
    Inventor: Ilwhan Park
  • Publication number: 20190262075
    Abstract: A method of manufacturing an arthroplasty jig is disclosed herein. The method may include the following: generate a bone model, wherein the bone model includes a three dimensional computer model of at least a portion of a joint surface of a bone of a patient joint to undergo an arthroplasty procedure; generate an implant model, wherein the implant model includes a three dimensional computer model of at least a portion of a joint surface of an arthroplasty implant to be used in the arthroplasty procedure; assess a characteristic associated with the patient joint; generate a modified joint surface of the implant model by modifying at least a portion of a joint surface of the implant model according to the characteristic; and shape match the modified joint surface of the implant model and a corresponding joint surface of the bone model.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 29, 2019
    Applicant: Howmedica Osteonics Corporation
    Inventors: Ilwhan Park, Charlie W. Chi, Stephen M. Howell