System of preoperative planning and provision of patient-specific surgical aids

  • US 9,717,508 B2
  • Filed: 10/27/2011
  • Issued: 08/01/2017
  • Est. Priority Date: 10/29/2010
  • Status: Active Grant
First Claim
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1. A method of preoperative planning and provision of patient-specific surgical aids, the method comprising the steps of:

  • creating a virtual model of a native patient tissue;

    placing a virtual device into a predetermined device orientation relative to the virtual model of the native patient tissue;

    specifying at least one predetermined landmark orientation for placement of at least one virtual landmark relative to the native patient tissue, the at least one virtual landmark being representative of a non-tissue landmark;

    generating a virtual patient-specific template positioned on said virtual model, the virtual patient-specific template containing the predetermined landmark orientation and having a landmark guiding feature for placement of the non tissue landmark in said predetermined landmark orientation relative to the native patient tissue;

    generating at least one virtual patient-specific placement guide configured to interact simultaneously with the at least one virtual landmark in said predetermined landmark orientation, with the virtual model of the native patient tissue after removal of the virtual patient-specific template, andwith the virtual device when the virtual device is in the predetermined device orientation;

    creating a physical patient-specific template as a tangible representation of the virtual patient specific template for placing the non-tissue landmark in the native patient tissue; and

    creating a physical patient-specific placement guide as a tangible representation of the virtual patient-specific placement guide separate from the physical patient-specific template, the physical patient-specific placement guide for interacting with the non-tissue landmark sequentially after removal of the patient-specific template after use of the patient-specific template to install the non-tissue landmark.

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