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US 8,262,665 B2Granted
Surgical guide for use during sinus elevation surgery utilizing the caldwell-luc osteotomy
OwnerYehia A. Massoudinventor
Life of this patent
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Abstract
The present invention discloses a surgical guide and accompanying depth bur with a method for its use during sinus elevation surgery utilizing the Caldwell-Luc Osteotomy procedure. The surgical guide of the present invention provides accurate transfer of the parameters of the surgical osteotomy to be performed during sinus elevation surgery. It bridges the gap between the precise information obtained from the CT scan and the surgical field on which this surgical plan must be placed. This is accomplished by the use of the surgical guide which is constructed based on the information in the CT scan and the treatment plan prepared utilizing 3-D imaging software.
Claims20
Surgical guide for performing a sinus elevation procedure on a specific patient's maxillary sinus by penetrating a lateral bony wall proximate a maxillary sinus of the patient with a bur, said lateral wall having an external surface, and a varying length, height and depth extending along an X-axis, a Y-axis, and a Z-axis, respectively, said surgical guide comprising:
- a first curvilinear-shaped subsection for placement adjacent to and in direct and continuous contact with the external surface of said lateral wall of the maxillary sinus, said first curvilinear-shaped subsection having at least one elongated first ledge having a length that extends in a direction along the X-axis of the lateral wall, the first ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in X-Y and Z-X planes of the lateral wall at the surgical site, the first ledge being configured to provide continuous contact with the lateral wall along its entire length at a first area of the surgical site;
- and
- a second curvilinear-shaped subsection for sequential placement adjacent to and in direct and continuous contact with the external surface of said lateral wall of the maxillary sinus, said second curvilinear-shaped subsection having at least one elongated second ledge having a length that extends in a direction along the X-axis of the lateral wall, the second ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in the X-Y and Z-X planes of the lateral wall at the surgical site, the second ledge being configured to provide continuous contact with the lateral wall along its entire length at a second area of the surgical site;
- wherein the first and second ledges each include variable depths in the Z-X plane and are configured to directly correspond to thickness variations along the Z-X plane of the patient's lateral wall, said first and second ledges permitting movement, guidance and depth control of the bur in three-dimensions.
1 more element
A surgical guide system for performing a sinus elevation procedure by penetrating an outer surface of an irregularly-shaped lateral wall of a maxillary bone forming a maxillary sinus of a specific patient, the system comprising:
- a treatment plan including a CT-scan and three-dimensional images which characterize a plurality of walls defining the maxillary sinus and maxillary bone structures of the patient, said plurality of walls having irregular dimensions, shapes, and contours formed along surface portions of the walls that are unique to each patient, said lateral wall having a length extending along an X-axis, a height extending along a Y-axis, and a depth extending along a Z-axis, said lateral wall having a convex-shape extending along the X-axis;
- a dental bur;
- a first curvilinear-shaped subsection for placement adjacent to and in direct and continuous contact with an external surface of said lateral wall of the maxillary sinus, said first curvilinear-shaped section having at least one elongated first ledge having a length that extends in a direction along the X-axis of the lateral wall, the first ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in X-Y and Z-X planes of the lateral wall to define a surgical site, the first ledge being configured to provide continuous contact with the lateral wall along its entire length and to guide the dental bur at a first area of the surgical site;
- said first elongated ledge having a customized variable depth along the Z-axis which corresponds to and aligns with thickness variations of the patient's lateral wall, said first elongated ledge permitting movement, guidance and depth control of a dental bur in three-dimensions along the first area of the surgical site;
- a second curvilinear-shaped subsection for placement adjacent to and in direct and continuous contact with the external surface of said lateral wall of the maxillary sinus, said second curvilinear-shaped section having at least one elongated second ledge having a length that extends in a direction along the X-axis of the lateral wall, the second ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in the X-Y and Z-X planes of the lateral wall at the surgical site, the second ledge being configured to provide continuous contact with the lateral wall along its entire length and to guide the dental bur at a second area of the surgical site;
- said second elongated ledge having a customized variable depth along the Z-axis which corresponds to and aligns with thickness variations of the patient's lateral wall, said second elongated ledge permitting movement, guidance and depth control of a dental bur in three-dimensions along the second area of the surgical site;
- and
- wherein the first and second curvilinear-shaped subsections are customized in shape and dimension to conform to the unique and irregularly-shaped and dimensioned lateral wall of the patient's maxillary bone at the surgical site, as determined by the CT-scan and three-dimensional images of the treatment plan.
5 more elements
A method of performing sinus elevation surgery to penetrate a bony lateral wall proximate a maxillary sinus of a specific patient, comprising:
- providing a treatment plan including a CT-scan and three-dimensional images which characterize a plurality of walls defining the maxillary sinus and maxillary bone structures of the patient, said plurality of walls having irregular dimensions, shapes, and contours formed along surface portions of the walls that are unique to each patient, said lateral wall having a length extending along an X-axis, a height extending along a Y-axis, and a depth extending along a Z-axis, said lateral wall having a convex-shape extending along the X-axis;
- providing a first curvilinear-shaped subsection for placement adjacent to and in direct and continuous contact with an external surface of said lateral wall of the maxillary sinus, said first curvilinear-shaped subsection having at least one elongated first ledge having a length that extends in a direction along the X-axis of the lateral wall, the first ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in X-Y and Z-X planes of the lateral wall to define a surgical site, the first ledge being configured to provide continuous contact with the lateral wall along its entire length and to guide a dental bur at a first area of the surgical site;
- said first elongated ledge having a customized variable depth along the Z-axis which corresponds to and aligns with thickness variations of the patient's lateral wall, said first elongated ledge permitting movement, guidance and depth control of the dental bur in three-dimensions along the first area of the surgical site;
- providing a second curvilinear-shaped subsection for placement adjacent to and in direct and continuous contact with the external surface of said lateral wall of the maxillary sinus, said second curvilinear-shaped subsection having at least one elongated second ledge having a length that extends in a direction along the X-axis of the lateral wall, the second ledge having varying surface contours formed in X-Y and Z-X planes extending along the length to correspond to and align with surface contours formed in the X-Y and Z-X planes of the lateral wall at the surgical site, the second ledge being configured to provide continuous contact with the lateral wall along its entire length and to guide the dental bur at a second area of the surgical site;
- said second elongated ledge having a customized variable depth along the Z-axis which corresponds to and aligns with thickness variations of the patient's lateral wall, said second elongated ledge permitting movement, guidance and depth control of the dental bur in three-dimensions along the second area of the surgical site;
- and
- wherein the first and second curvilinear-shaped subsections are customized in shape and dimension to conform to the unique and irregularly-shaped and dimensioned lateral wall of the patient's maxillary bone at the surgical site, as determined by the CT-scan and three-dimensional images of the treatment plan.
4 more elements
Dependencies are inferred from the claim text.