Surgical guide kit apparatus and method

• US 10,064,700 B2
• Filed: 02/14/2013
• Issued: 09/04/2018
• Est. Priority Date: 02/14/2013
• Status: Active Grant

• Current Assignee: Zvi Fudim
• Original Assignee: Zvi Fudim
• Inventors: Fudim, Zvi
• Primary Examiner(s): Eide, Heidi M
• Assistant Examiner(s): Aponte, Mirayda A
• Application Number:
  US13/766,814
• Publication Number:
  US 20140227656A1
• Time in Patent Office: 2,028 Days
• Field of Search: 433 24, 433 72- 75
• CPC Class Codes: A61C 1/082 Positioning or guiding, e.g. of drills
• CPC Class Codes: A61C 13/0004 Computer-assisted sizing or machining of dental prostheses
• CPC Class Codes: A61C 13/34 Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]

Abstract

A method for fabricating a dental surgical guide. The method includes the steps of producing a dental cast dental cast from an edentulous patient jaw; drilling the dental cast model for inserting a radiopaque rod therein; molding a base plate thereon to produce a radiopaque marker appliance; scanning the resulting appliance in a patient'"'"'s mouth using computed tomography; calculating angles from the computed tomography for adjusting protractors of a dental model laser aligner; and molding a base-plate that incorporates a telescopic drilling tube that results into the dental surgical guide.

Claims

1. A method for aligning a direction of a drilled cavity (600) of a dental cast model (300) with a direction of a planned dental osteotomy, the dental cast model (300) usable for making a surgical guide (1800) for the planned dental osteotomy, the method comprising:

inserting a radiopaque rod (700) in the drilled cavity (600) of the dental cast model (300);

molding a base plate (800) onto the dental cast model (300) for incorporating the radiopaque rod (700) and resulting in a radiopaque marker appliance (900);

removing the radiopaque marker appliance (900) that incorporates the radiopaque rod (700) from the dental cast model (300);

scanning the radiopaque marker appliance (900) using computed tomography or cone beam computed tomography of the radiopaque marker appliance (900) in a patient'"'"'s mouth to produce a computed tomography image (2300) with radiopaque linear markers depicted thereon (1102, 1002);

constructing a sagittal angle (1001) between a long axis of a planned dental implant and a long axis of the radiopaque linear markers on a sagittal view (1000) of the computed tomography image (2300);

constructing a panoramic angle (1101) between the long axis of the planned dental implant and the long axis of the radiopaque linear markers on a panoramic view (1100) of the computed tomography image (2300);

calculating with a computer program (1200) the value of a first angle, a sagittal complementary angle (1011) of the sagittal view (1000) and the value of a second angle, a panoramic complementary angle (1111) of the panoramic view (1100) based on the sagittal angle (1001) and the panoramic angle (1101);

sliding and articulating an adjustable holder (1309) mounted onto a platform (1312) for holding the dental cast model (300), the adjustable holder (1309) being slidable and articulatable with respect to the platform (1312);

inserting a reflector rod (1305) that is removably insertable into the drilled cavity (800) of the cast model (300), the reflector rod (1305) including a rectangular cuboid rod member (2301) having a first longitudinal side with a first reflecting surface (2302) and a second longitudinal side with a second reflecting surface (2303), the first reflecting surface (2302) being perpendicular to the second reflecting surface (2303), the reflector rod (1305) including a horizontal extension in the shape of a rectangular cuboid member (2304) extending perpendicularly from the second longitudinal side and having a third reflecting surface (2305) that is parallel to the first reflecting surface (2302);

turning on a first linear laser source (1303) mountable on a first side of the platform (1312) for projecting a sagittal laser beam (2201);

adjusting a first protractor (1313) and a first rotating head (1301) associated to the first linear laser source (1303) for setting the first angle (1011) of the sagittal laser beam (2201);

turning on a second linear laser source (1304) on a second side of the platform (1312) that is perpendicular to the first side of the platform (1312) for projecting a panoramic laser beam (2202);

adjusting a second protractor (1314) and a second rotating head (1302) associated to the second linear laser source (1304) for setting the second angle (1111) of the panoramic laser beam (2202); and

sliding and articulating the adjustable holder (1309) to align the sagittal laser beam (2201) on the first reflecting surface (2302) of the reflector rod (1305) and to align the panoramic laser beam (2202) on the second and third reflecting surfaces (2303, 2305) of the reflector rod (1305) whereby the drilled cavity (600) of the dental cast model (300) is aligned with the direction of the planned dental osteotomy.