PATIENT SPECIFIC SURGICAL GUIDE
First Claim
1. A method of producing a patient specific surgical guide helmet for guiding a cranial surgical procedure adapted to be performed on the head of a patient, comprising the steps of:
- a) obtaining imagery of at least a portion of the head of the patient, and determining one or more surgical targets in at least one of the brain tissue, the cranium bone and the scalp;
b) planning at least a trajectory of the surgical procedure based on the determined surgical target;
c) performing segmentation of said imagery;
d) creating a three-dimensional model of the patient specific surgical guide helmet using the results of steps a), b) and c), the patient specific surgical guide helmet being customized in size and shape and configured to fit on the scalp of the specific patient, the patient specific surgical guide helmet having at least one guide element incorporated therewith, the guide element being positioned and oriented to guide a surgical implement along the planned trajectory toward the determined surgical target; and
e) producing the patient specific surgical guide helmet to correspond to the modeled patient specific surgical guide helmet of step d).
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Accused Products
Abstract
A patient specific instrument (PSI) surgical guide and method for producing same is described. The method includes: obtaining imagery of at least a portion of a patient, and determining one or more surgical targets in the tissue; planning at least a trajectory of the surgical procedure based on a determined surgical target within the tissue; performing segmentation of the imagery; creating a three-dimensional model of the PSI surgical guide, the PSI surgical guide being customized in size and shape and configured to fit on the specific patient. The PSI surgical guide is then produced to correspond to the modeled PSI surgical guide. The PSI surgical guide has a guide element positioned and oriented to guide a surgical implement along the planned trajectory toward the determined surgical target in the tissue.
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Citations
24 Claims
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1. A method of producing a patient specific surgical guide helmet for guiding a cranial surgical procedure adapted to be performed on the head of a patient, comprising the steps of:
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a) obtaining imagery of at least a portion of the head of the patient, and determining one or more surgical targets in at least one of the brain tissue, the cranium bone and the scalp; b) planning at least a trajectory of the surgical procedure based on the determined surgical target; c) performing segmentation of said imagery; d) creating a three-dimensional model of the patient specific surgical guide helmet using the results of steps a), b) and c), the patient specific surgical guide helmet being customized in size and shape and configured to fit on the scalp of the specific patient, the patient specific surgical guide helmet having at least one guide element incorporated therewith, the guide element being positioned and oriented to guide a surgical implement along the planned trajectory toward the determined surgical target; and e) producing the patient specific surgical guide helmet to correspond to the modeled patient specific surgical guide helmet of step d). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A patient specific surgical guide helmet for guiding a cranial surgical procedure to be performed on the head of a patient, comprising:
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a head-covering portion customized in size and shape to fit directly onto at least a portion of the head of the specific patient, the head-covering portion including at least a first component extending in the sagittal plane and at least a second component extending in the medial-lateral plane, such as to secure the head-covering portion to the head; and at least one guide element integrated into the head-covering portion, the guide element being positioned and oriented to guide a surgical implement along a planned trajectory to reach a predetermined surgical target of the cranial surgical procedure. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of performing a cranial surgical procedure on the head of a patient, comprising the steps of:
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imaging at least a selected portion of the head of the patient and determining one or more surgical targets in at least brain tissue of the patient; planning at least one of a trajectory, cranium entry point and end point of the surgical procedure based on the determined surgical targets; forming a patient specific surgical guide helmet customized to the head of the specific patient based on said imaging and said planned surgical procedure, the patient specific surgical guide helmet having at least one guide element which guides a surgical implement during the cranial surgical procedure along the planned trajectory, the guide element being positioned and oriented such that an axis thereof corresponds to the planned trajectory; securing the patient specific surgical guide helmet onto the head of the patient; and performing the cranial surgical procedure using the guide element of the patient specific surgical guide helmet to guide the surgical implement along said axis through said planned trajectory to the determined surgical target in the brain tissue of the patient. - View Dependent Claims (20, 21, 22)
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23. A method of performing a surgical procedure involving injecting or removing material from a target location in tissue of a patient, the method comprising the steps of:
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imaging at least said tissue of the patient to generate a virtual model of the tissue, and determining one or more target locations within the virtual model of the tissue; forming a patient specific surgical guide, customized to fit on the specific patient over a site comprising the tissue and for guiding a surgical implement used to perform the surgical procedure, by; obtaining the imagery of the tissue of the patient; planning at least one of a trajectory and end point of the surgical procedure based on the determined target location; performing a segmentation of the virtual model of the tissue; modeling the patient specific surgical guide to fit on the patient and having at least one guide element incorporated therein, the guide element including at least one aperture providing access to the tissue and defining an entry point for the surgical implement, the guide element being positioned and oriented to guide the surgical implement along the planned trajectory to the determined target location; and creating the patient specific surgical guide which corresponds to the modeled patient specific surgical guide; securing the patient specific surgical guide onto the patient; and performing the surgical procedure using the patient specific surgical guide to guide the surgical implement to the determined target location in the tissue of the patient, including performing at least one of an injection of material into the target location and a removal of tissue from the target location.
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24. A patient specific surgical guide for guiding a surgical procedure to be performed at a predetermined target location in tissue of a patient, comprising:
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a patient-specific base portion customized in size and shape to fit directly onto a body part the specific patient, over a site comprising said tissue; and at least one guide element integrated into the base portion, the guide element being positioned and oriented to guide a surgical implement along a planned trajectory to reach the predetermined target location within the tissue, the guide element including at least one aperture providing access to the body part and defining an entry point for the surgical procedure, and the guide element including a guide tube extending outwardly from the aperture and defining an axis centrally therein which extends through the guide tube in alignment with the aperture, the axis corresponding to the planned trajectory.
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Specification