Stereotactic localizer system with dental impression
First Claim
1. A dental-based localizer for non-invasively indexing computer tomographic (CT) slice images of the anatomy of a patient, the localizer defining x, y and z-axes, whereby upon positioning of the localizer with respect to a head of the patient, the z-axis is in general parallel relation to the axis of the body, the localizer comprising:
- a discrete independent reference structure which is solely supported by the patient, the reference structure including;
a dental piece configured and adapted to be received in the mouth of the patient;
a base plate attached to the dental piece, the base plate having a single monolithic element defining a general arcuate configuration, the arcuate configuration having a first portion including a first end and a second portion including a second end, wherein the first portion and the second portion of the base plate extend an approximately equal distance from the dental piece and terminate in the first end and the second end, respectively, the first end and the second end being positioned approximately adjacent the opposed posterior regions of the teeth of the patient, the dental piece providing a fixed reference point for the base plate relative to the patient, the dental piece and the base plate being configured and adapted for use on the patient without an external support structure attached thereto; and
a plurality of elongated graphic reference elements connected to the base plate and being disposed in at least two planes, the graphic reference elements and base plate being configured to accommodate the positioning of the patient in a supine position on a treatment table such that the occipital region of the head of the patient is directly positionable on the treatment table.
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Accused Products
Abstract
Dental-based stereotactic localizers for non-invasively inducing computer tomographic (CT) slice images of the anatomy of a patient are disclosed. The localizer includes a dental piece configured and adapted to be received in the mouth of the patient, a support structure secured to the dental piece, the support structure defining an arcuate configuration which extends to the posterior margins of the teeth of the patient thus allowing an occipital region of the head of the patient to directly contact a surface of a treatment table, and a plurality of graphic reference elements, wherein the plurality of graphic reference elements produce index information on an image scan when intersected by a plane of a scan slice, wherein the index information is used to develop a mapping of data from the image scan so as to reference the data from the image scan to a coordinate system of the dental tray.
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Citations
50 Claims
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1. A dental-based localizer for non-invasively indexing computer tomographic (CT) slice images of the anatomy of a patient, the localizer defining x, y and z-axes, whereby upon positioning of the localizer with respect to a head of the patient, the z-axis is in general parallel relation to the axis of the body, the localizer comprising:
a discrete independent reference structure which is solely supported by the patient, the reference structure including;
a dental piece configured and adapted to be received in the mouth of the patient;
a base plate attached to the dental piece, the base plate having a single monolithic element defining a general arcuate configuration, the arcuate configuration having a first portion including a first end and a second portion including a second end, wherein the first portion and the second portion of the base plate extend an approximately equal distance from the dental piece and terminate in the first end and the second end, respectively, the first end and the second end being positioned approximately adjacent the opposed posterior regions of the teeth of the patient, the dental piece providing a fixed reference point for the base plate relative to the patient, the dental piece and the base plate being configured and adapted for use on the patient without an external support structure attached thereto; and
a plurality of elongated graphic reference elements connected to the base plate and being disposed in at least two planes, the graphic reference elements and base plate being configured to accommodate the positioning of the patient in a supine position on a treatment table such that the occipital region of the head of the patient is directly positionable on the treatment table. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A dental based target localizing apparatus configured for use with an external treatment apparatus comprising:
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a dental piece positionable in the mouth of a patient;
a base plate solely attached to the dental piece, the base plate defining an arcuate configuration and extending from the dental piece to posterior regions of the teeth of the patient, the dental piece and base plate providing a dental based reference, wherein an occipital region of the head of the patient is directly positionable on a treatment table;
a plurality of plates solely connected to the base plate; and
a reticule system positioned on the plurality of plates and adapted for aligning a target tissue portion in the patient with an external treatment apparatus for the treatment of the target tissue portion by the external treatment apparatus through the reticule system, wherein the base plate and the plurality of plates are configured to accommodate the positioning of the patient in a supine position on a treatment table such that the occipital region of the head of the patient is directly positionable on the upper surface of the treatment table. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of identifying the location of specific anatomical points in a patient comprising the steps of:
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providing a dental-based localizer including;
a dental piece configured and adapted to be received in the mouth of the patient;
a base plate attached to the dental piece, the base plate having a single monolithic element defining a general arcuate configuration, the arcuate configuration having a first portion including a first end and a second portion including a second end, wherein the first portion and the second portion of the base plate extend an approximately equal distance from the dental piece and terminate in the first end and the second end, respectively, the first end and the second end being positioned approximately adjacent the to opposed posterior regions of the teeth of the patient, the dental piece providing a fixed reference point for the base plate; and
a plurality of elongated graphic reference elements connected to the base plate and disposed in at least two planes, the graphic reference elements and the base support plate being adapted for use with a treatment table having a treatment surface, the graphic reference elements and base plate being configured to accommodate the positioning of the patient in a supine position such that the occipital region of the head of the patient is directly positionable on the surface of the treatment table without additional support for the head of the patient and without any connection of an external support structure to the graphic reference elements, base plate, and dental piece;
positioning the dental piece of the dental-based localizer in the mouth of the patient;
positioning the patient in the supine position on the treatment table such that the head of the patient is directly contacting the surface of the treatment table; and
performing an image scan of the head of the patient and the dental-based localizer, the dental based localizer providing a reference structure to index the data of the imaging scanner to the dental piece and the head of the patient. - View Dependent Claims (23, 24, 25, 26)
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27. A dental-based localizer for locating targets in the anatomy of a patient in the region of the ear, nose, throat and skull base during tomographic coronal scanning in ENT surgery, the anatomy of the patient defining a longitudinal axis when in a supine position, the localizer comprising:
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a dental piece configured to be positioned on the teeth of the patient to locate the localizer in fixed relation relative to the anatomy of the patient;
pairs of graphic reference elements positioned in at least two planes, each pair of graphic reference elements including at least one elongate element transversely oriented with respect to the longitudinal axis; and
at least one diagonal element having at least one end joined to an end of the at least one elongate element and oriented at an angle relative to the elongate element, the pairs of graphic reference elements and the dental piece being interconnected by an attachment structure having connecting members and supporting members. - View Dependent Claims (28, 29)
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30. A dental-based localizer for locating targets in the anatomy of a patient in the region of the ear, nose, throat and skull base during tomographic scanning, the anatomy of the patient defining a longitudinal axis while in a supine position, the localizer comprising:
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a dental piece fit to the teeth of the patient thereby locating the dental piece in fixed spaced relation to the anatomy of the patient, the dental piece connected to an angled platform; and
graphic reference elements positioned relative to the platform, the graphic reference elements including;
a first graphic reference element positioned adjacent the head of the patient and defining a first plane, the first graphic reference element including at least one axial element oriented parallel to the longitudinal axis and at least one diagonal element oriented at an angle relative to the at least one axial element;
a second graphic reference element positioned adjacent the head of the patient and defining a second plane, the second graphic reference element including at least one axial element oriented parallel to the longitudinal axis and at least one diagonal element oriented at an angle relative to the at least one axial element of the graphic reference element, the at least one diagonal element of the first graphic reference element has components in axes x, y, and z which are perpendicular to components of the diagonal element of the second graphic reference element; and
a third graphic reference element defining a third plane, the third graphic reference element having a first diagonal element connected to the first graphic reference element and a second diagonal element connected to the second graphic reference element, the first and second diagonal elements of the third graphic reference element being joined at one end to one another. - View Dependent Claims (31, 32, 33)
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34. A dental-based localizer that can be used for locating targets in the anatomy of a patient in the region of the ear, nose, throat and skull base, comprising:
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a dental piece configured to be positioned on the teeth of the patient so as to locate thereby the dental piece to the anatomy of the patient, the dental piece being connected to a platform having a substantially plate shape and defining a dental plane; and
a graphic reference element attached to and located in position relative to the dental piece, the graphic reference element being connected to the platform and including;
two quadrangles supported on the platform, wherein a quadrangle is positioned adjacent a respective side of the head of the patient; and
a triangle interconnecting the two quadrangles and oriented in an inverted ā
Vā
shape, the two quadrangles and the triangle defining three interconnected planes extending from a top of the skull of the patient to a base of the throat of the patient, each plane having at least one diagonal element which will produce varying index data in a coronal tomographic slice from a computer tomographic imaging machine. - View Dependent Claims (35, 36, 37, 38)
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39. A dental-based stereotactic localizer for non-invasively inducing computer tomographic (CT) slice images of the anatomy of a patient, wherein the anatomy of the patient defines a longitudinal axis when in a supine position, the localizer comprising:
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a dental piece configured and adapted to be received in the mouth of the patient;
a support structure secured to the dental piece, the support structure defining an arcuate configuration which extends to the posterior margins of the teeth of the patient thus allowing an occipital region of the head of the patient to directly contact a surface of a treatment table; and
a plurality of graphic reference elements, wherein the plurality of graphic reference elements produce index information on an image scan when intersected by a plane of a scan slice, wherein the index information is used to develop a mapping of data from the image scan so as to reference the data from the image scan to a coordinate system of the dental tray. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification