Patents by Inventor Mohamed Rashwan Mahfouz

Mohamed Rashwan Mahfouz 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: 10070960
    Abstract: The exemplary embodiments of the present disclosure are described and illustrated below to encompass methods and devices for designing patient specific prosthetic cutting jigs and, more specifically, to devices and methods for segmenting bone of the knee and the resulting cutting guides themselves. Moreover, the present disclosure relates to systems and methods for manufacturing customized surgical devices, more specifically, the present disclosure relates to automated systems and methods of arthroplasty cutting guides, systems and methods for image segmentation in generating computer models of knee joint.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: September 11, 2018
    Assignee: ZIMMER, INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 10052206
    Abstract: A method of generating a patient specific prosthetic implant is described, which includes: generating a three dimensional electronic representation of a human anatomical feature of a unique patient; identifying one or more representative surface curvature features on the three dimensional electronic representation; and associating the three dimensional electronic representation with a virtual implant template of the human anatomical feature selected from a database of virtual implant templates, and comparing fit of the identified representative surface curvature features of the three dimensional electronic representation with corresponding surface curvature features of the virtual implant template. The virtual implant template is selected to have the most similar corresponding surface curvature features.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: August 21, 2018
    Assignee: ZIMMER INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 9937046
    Abstract: The exemplary embodiments of the present disclosure are described and illustrated below to encompass methods and devices for designing patient specific prosthetic cutting jigs and, more specifically, to devices and methods for segmenting bone of the knee and the resulting cutting guides themselves. Moreover, the present disclosure relates to systems and methods for manufacturing customized surgical devices, more specifically, the present disclosure relates to automated systems and methods of arthroplasty cutting guides, systems and methods for image segmentation in generating computer models of knee joint.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: April 10, 2018
    Assignee: ZIMMER, INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 9895230
    Abstract: A method for generating a patient-specific prosthetic implant is disclosed which includes generating, using one or more processors from a medical image of a human anatomical feature, a three dimensional electronic representation of the human anatomical feature including size and surface curvature features matching the human anatomical feature, the surface curvature features including one or more radii of curvature on an outer camming surface of the human anatomical feature. A prosthetic implant template is selected, using the one or more processors, from a database of prosthetic implant templates, and the custom implant is virtually designed to imitate the size and surface curvature features of the three dimensional electronic representation based on the selected prosthetic implant template. Fit of the custom implant is tested, virtually using the one or more processors, using the three dimensional electronic representation of the human anatomical feature.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: February 20, 2018
    Assignee: ZIMMER, INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 9675461
    Abstract: A method of designing a prosthetic implant. Exemplary methods may include developing a three-dimensional model of an anatomic feature from one or more two-dimensional images. The three-dimensional model may include a plurality of radii of curvature representing the shape of respective portions of a contact surface. In some exemplary embodiments, three-dimensional models associated with a large number members of a population may be utilized to create templates for prosthetic implants. A three-dimensional model of an anatomic feature of a patient may be compared to the available templates, and a suitable template may be tested by virtually implanting the template on the three-dimensional model of the patient's anatomical feature. In some embodiments, a patient's three-dimensional model for which a suitable pre-made template is not available may be used to customize a pre-made template to design a suitable implant.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: June 13, 2017
    Assignee: ZIMMER INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Publication number: 20170027701
    Abstract: The exemplary embodiments of the present disclosure are described and illustrated below to encompass methods and devices for designing patient specific prosthetic cutting jigs and, more specifically, to devices and methods for segmenting bone of the knee and the resulting cutting guides themselves. Moreover, the present disclosure relates to systems and methods for manufacturing customized surgical devices, more specifically, the present disclosure relates to automated systems and methods of arthroplasty cutting guides, systems and methods for image segmentation in generating computer models of knee joint.
    Type: Application
    Filed: September 13, 2016
    Publication date: February 2, 2017
    Inventor: MOHAMED RASHWAN MAHFOUZ
  • Publication number: 20170000615
    Abstract: A system for generating a patient-specific implant is described which includes a means for generating a three dimensional electronic representation of a human anatomical feature including size and curvature features matching the human anatomical feature, a means for selecting a prosthetic implant template from a database of prosthetic implant templates, the database being formed of the prosthetic implant templates by a means for generating a series of the virtual implant templates, a means for designing the patient-specific implant to imitate the size and curvature features based at least in part on the selected prosthetic implant template, and a means for virtually testing fit of the patient-specific implant using the three dimensional electronic representation of the human anatomical feature.
    Type: Application
    Filed: September 13, 2016
    Publication date: January 5, 2017
    Inventor: Mohamed Rashwan MAHFOUZ
  • Publication number: 20170000614
    Abstract: A method of generating a patient specific prosthetic implant is described, which includes: generating a three dimensional electronic representation of a human anatomical feature of a unique patient; identifying one or more representative surface curvature features on the three dimensional electronic representation; and associating the three dimensional electronic representation with a virtual implant template of the human anatomical feature selected from a database of virtual implant templates, and comparing fit of the identified representative surface curvature features of the three dimensional electronic representation with corresponding surface curvature features of the virtual implant template. The virtual implant template is selected to have the most similar corresponding surface curvature features.
    Type: Application
    Filed: September 13, 2016
    Publication date: January 5, 2017
    Inventor: Mohamed Rashwan MAHFOUZ
  • Publication number: 20170000569
    Abstract: A method for generating a patient-specific prosthetic implant is disclosed which includes generating, using one or more processors from a medical image of a human anatomical feature, a three dimensional electronic representation of the human anatomical feature including size and surface curvature features matching the human anatomical feature, the surface curvature features including one or more radii of curvature on an outer camming surface of the human anatomical feature. A prosthetic implant template is selected, using the one or more processors, from a database of prosthetic implant templates, and the custom implant is virtually designed to imitate the size and surface curvature features of the three dimensional electronic representation based on the selected prosthetic implant template. Fit of the custom implant is tested, virtually using the one or more processors, using the three dimensional electronic representation of the human anatomical feature.
    Type: Application
    Filed: September 13, 2016
    Publication date: January 5, 2017
    Inventor: Mohamed Rashwan MAHFOUZ
  • Publication number: 20160220312
    Abstract: A method for anatomical analysis and joint implant design. Embodiments provide users with the ability to anatomically analyze a single bone or a series of bones that exist in a database, evaluate surgical landmarks and axes, identify differences among specific characteristics of a given population, and modify existing implants or create new implant designs based on anatomical analyses.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 4, 2016
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 9345551
    Abstract: A method for anatomical analysis and joint implant design. Embodiments provide users with the ability to anatomically analyze a single bone or a series of bones that exist in a database, evaluate surgical landmarks and axes, identify differences among specific characteristics of a given population, and modify existing implants or create new implant designs based on anatomical analyses.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: May 24, 2016
    Assignee: ZIMMER INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Publication number: 20160000571
    Abstract: An orthopedic implant comprising: (a) a distal femoral component comprising a first condyle bearing surface having a first profile comprising at least three consecutive arcs of curvature; and (b) a proximal tibial component comprising a first condyle bearing surface having a second profile comprising at least three parallel arcs of curvature.
    Type: Application
    Filed: June 9, 2015
    Publication date: January 7, 2016
    Inventor: Mohamed Rashwan MAHFOUZ
  • Publication number: 20150342739
    Abstract: A method of designing a prosthetic implant. Exemplary methods may include developing a three-dimensional model of an anatomic feature from one or more two-dimensional images. The three-dimensional model may include a plurality of radii of curvature representing the shape of respective portions of a contact surface. In some exemplary embodiments, three-dimensional models associated with a large number members of a population may be utilized to create templates for prosthetic implants. A three-dimensional model of an anatomic feature of a patient may be compared to the available templates, and a suitable template may be tested by virtually implanting the template on the three-dimensional model of the patient's anatomical feature. In some embodiments, a patient's three-dimensional model for which a suitable pre-made template is not available may be used to customize a pre-made template to design a suitable implant.
    Type: Application
    Filed: March 6, 2015
    Publication date: December 3, 2015
    Inventor: Mohamed Rashwan MAHFOUZ
  • Patent number: 9078755
    Abstract: An orthopedic implant comprising: (a) a distal femoral component comprising a first condyle bearing surface having a first profile comprising at least three consecutive arcs of curvature; and (b) a proximal tibial component comprising a first condyle bearing surface having a second profile comprising at least three parallel arcs of curvature. The disclosure also includes a method of designing and fabricating an orthopedic implant, the method comprising: (a) evaluating images of distal femurs of a particular ethnicity to extract common shape features exhibited across an ethnicity that are unique to the ethnicity to create an ethnic specific template; (b) designing a distal femoral component comprising a first condyle surface using the ethnic specific template; and, (c) fabricating a distal femoral component embodying the first condyle surface.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: July 14, 2015
    Assignee: ZIMMER, INC.
    Inventor: Mohamed Rashwan Mahfouz
  • Publication number: 20150120031
    Abstract: The exemplary embodiments of the present disclosure are described and illustrated below to encompass methods and devices for designing patient specific prosthetic cutting jigs and, more specifically, to devices and methods for segmenting bone of the knee and the resulting cutting guides themselves. Moreover, the present disclosure relates to systems and methods for manufacturing customized surgical devices, more specifically, the present disclosure relates to automated systems and methods of arthroplasty cutting guides, systems and methods for image segmentation in generating computer models of knee joint.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 30, 2015
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 8989460
    Abstract: A method of designing a prosthetic implant. Exemplary methods may include developing a three-dimensional model of an anatomic feature from one or more two-dimensional images. The three-dimensional model may include a plurality of radii of curvature representing the shape of respective portions of a contact surface. In some exemplary embodiments, three-dimensional models associated with a large number members of a population may be utilized to create templates for prosthetic implants. A three-dimensional model of an anatomic feature of a patient may be compared to the available templates, and a suitable template may be tested by virtually implanting the template on the three-dimensional model of the patient's anatomical feature. In some embodiments, a patient's three-dimensional model for which a suitable pre-made template is not available may be used to customize a pre-made template to design a suitable implant.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 24, 2015
    Inventor: Mohamed Rashwan Mahfouz
  • Publication number: 20150030224
    Abstract: A method for anatomical analysis and joint implant design. Embodiments provide users with the ability to anatomically analyze a single bone or a series of bones that exist in a database, evaluate surgical landmarks and axes, identify differences among specific characteristics of a given population, and modify existing implants or create new implant designs based on anatomical analyses.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 29, 2015
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 8884618
    Abstract: The exemplary embodiments of the present disclosure are described and illustrated below to encompass methods and devices for designing patient specific prosthetic cutting jigs and, more specifically, to devices and methods for segmenting bone of the knee and the resulting cutting guides themselves. Moreover, the present disclosure relates to systems and methods for manufacturing customized surgical devices, more specifically, the present disclosure relates to automated systems and methods of arthroplasty cutting guides, systems and methods for image segmentation in generating computer models of knee joint.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: November 11, 2014
    Assignee: Zimmer, Inc.
    Inventor: Mohamed Rashwan Mahfouz
  • Patent number: 8831302
    Abstract: A method for anatomical analysis and joint implant design. Embodiments provide users with the ability to anatomically analyze a single bone or a series of bones that exist in a database, evaluate surgical landmarks and axes, identify differences among specific characteristics of a given population, and modify existing implants or create new implant designs based on anatomical analyses.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: September 9, 2014
    Inventor: Mohamed Rashwan Mahfouz
  • Publication number: 20120265496
    Abstract: An orthopedic implant comprising: (a) a distal femoral component comprising a first condyle bearing surface having a first profile comprising at least three consecutive arcs of curvature; and (b) a proximal tibial component comprising a first condyle bearing surface having a second profile comprising at least three parallel arcs of curvature. The disclosure also includes a method of designing and fabricating an orthopedic implant, the method comprising: (a) evaluating images of distal femurs of a particular ethnicity to extract common shape features exhibited across an ethnicity that are unique to the ethnicity to create an ethnic specific template; (b) designing a distal femoral component comprising a first condyle surface using the ethnic specific template; and, (c) fabricating a distal femoral component embodying the first condyle surface.
    Type: Application
    Filed: October 7, 2011
    Publication date: October 18, 2012
    Inventor: Mohamed Rashwan MAHFOUZ