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A bone support assembly comprising a support plate, bone fasteners, and a bone fastener cover assembly. The support plate comprises a fixed base portion comprising base apertures, and a slot portion comprising slot-shaped apertures. The bone fasteners are disposed in ones of the base apertures and t

A bone support assembly comprising a support plate, bone fasteners, and a bone fastener cover assembly. The support plate comprises a fixed base portion comprising base apertures, and a slot portion comprising slot-shaped apertures. The bone fasteners are disposed in ones of the base apertures and the slot-shaped apertures, the bone fasteners and the support plate, in combination, being adapted and configured for holding the support plate to bone material. The bone fastener cover assembly comprises a cover plate, and at least one cover plate fastener effective to fasten the cover plate to the support plate. The cover plate and support plate, in combination, accommodate both longitudinal and transverse sliding movement of the cover plate along the top surface of the support plate to thereby cover and uncover ones of the apertures, having bone fasteners therein, while the cover plate is attached to the support plate.

대표청구항 ▼

A bone support assembly comprising a support plate, bone fasteners, and a bone fastener cover assembly. The support plate comprises a fixed base portion comprising base apertures, and a slot portion comprising slot-shaped apertures. The bone fasteners are disposed in ones of the base apertures and t

A bone support assembly comprising a support plate, bone fasteners, and a bone fastener cover assembly. The support plate comprises a fixed base portion comprising base apertures, and a slot portion comprising slot-shaped apertures. The bone fasteners are disposed in ones of the base apertures and the slot-shaped apertures, the bone fasteners and the support plate, in combination, being adapted and configured for holding the support plate to bone material. The bone fastener cover assembly comprises a cover plate, and at least one cover plate fastener effective to fasten the cover plate to the support plate. The cover plate and support plate, in combination, accommodate both longitudinal and transverse sliding movement of the cover plate along the top surface of the support plate to thereby cover and uncover ones of the apertures, having bone fasteners therein, while the cover plate is attached to the support plate. ecal material through the passageway. visualization system of claim 6 wherein the display comprises an optical-see-through (OST) head-mounted display. 9. The augmented reality visualization system of claim 6 wherein the display comprises a video-see-through (VST) head-mounted display including first and second video cameras for producing first and second video streams indicative of the viewer's surroundings. 10. The augmented reality visualization system of claim 9 comprising a first tracker for tracking position and orientation of the endoscope and outputting a first tracking signal based on the position and orientation of the endoscope and a second tracker for tracking position and orientation of the viewer's head and outputting a second tracking signal based on the position and orientation of the viewer's head, wherein the image merger merges the first and second video streams, the three-dimensional images, and the synthetic images to produce the merged images based on the depth information and the first and second tracking signals. 11. The augmented reality visualization system of claim 6 wherein the real-time structured light depth extraction system comprises: (a) a projector optically coupled to the endoscope for projecting, from a first position, structured light patterns into the patient's body; (b) a camera optically coupled to the endoscope for receiving, from a second position, light reflected from the objects inside of the patient's body synchronously with projection of the structured light patterns; and (c) a depth extractor for calculating depth information relating to the objects inside of the patient's body based on the structured light patterns, the light received by the camera, and the first and second positions. 12. The augmented reality visualization system of claim 6 wherein the endoscope comprises a single endoscope having a shared optical path for transmitting structured light patterns into the patient's body and receiving light reflected from the objects inside of the patient's body. 13. The augmented reality visualization system of claim 11 wherein the single endoscope comprises a single laparoscope. 14. The augmented reality visualization system of claim 6 wherein the endoscope comprises a first endoscope for communicating structured light patterns into the patient's body and a second endoscope for receiving light reflected from the objects inside of the patient's body. 15. The augmented reality visualization system of claim 14 wherein the first and second endoscopes comprise first and second laparoscopes. al., 073/626; US-5072735, 19911200, Okazaki et al.; US-5379642, 19950100, Reckwerdt et al., 073/625; US-5608690, 19970300, Hossack et al., 367/138; US-5797846, 19980800, Seyed-Bolorforosh et al., 600/447; US-5919137, 19990700, Finger et al., 600/443; US-5976087, 19991100, Resnick et al., 600/443; US-6113544, 20000900, Mo, 600/447; US-6123670, 20000900, Mo, 600/447; US-6146300, 20001100, Tujino et al., 600/443 9, 20010600, Kamiyama, 600/458; US-6311085, 20011000, Meaney et al., 324/306; US-6317623, 20011100, Griffiths et al., 600/431 roximal end when fluid is directed into said third lumen, c) advancing said distal end of said fourth lumen through the vascular system of the patient to the selected area by advancing said fourth lumen over a guidewire that extends to the selected area, d) inflating said balloon by directing fluid into said first lumen, e) advancing said treating element to the selected area through said second lumen by directing a fluid through said second and third lumens in a forward direction, and f) allowing said treating element to remain in the selected area for a therapeutically effective amount of time. 9. The method of claim 8 further comprising: a) retrieving said treating element from the selected area and returning it to said proximal end of said tube by directing fluid flow through said third and second lumens in a reverse direction, and b) withdrawing said tube from the artery of the patient. 10. The method of claim 8 further comprising providing said at least one elongated tube wherein said tube comprises four conjoined coaxial tubes each having a proximal and a distal end, with the spaces between said coaxial tubes defining said first, second, and third lumens, and the coaxial tube that is innermost having a lumen comprising said fourth lumen. 11. The method of claim 8 further comprising: a) providing a second tube having a proximal end and a distal end substantially coextensive with said at least one tube, wherein said at least one tube defines said first lumen and further defines a fifth lumen sized to receive said second tube, and said second tube defines said second, third, and fourth lumens, b) advancing said second tube to the selected area within said fifth lumen of at least one tube after said balloon has been inflated. 12. An apparatus for treating a selected area of the vascular system of a patient comprising: an elongated tube having a proximal end portion, a distal end portion opposite said proximal end portion and first and second lumens extending therebetween; a flexible balloon membrane carried at said distal end portion of said elongated tube, said balloon membrane being in communication with said first lumen for inflation when pressurized fluid is introduced through said first lumen; and a radioactive treating element carried within said second lumen and moveable between said proximal and distal end portions by means of pressurized fluid introduced through said second lumen. 13. An apparatus for treating a selected area of the vascular system of a patient comprising: an elongated flexible tube including a proximal end and a distal end for positioning at the selected area of the vascular system and defining first, second and third lumens, said first, second and third lumens extending in generally parallel relationship between said proximal and distal ends of said tube, said first lumen being open at said distal end of said tube for receiving a guidewire, said second and third lumens being in fluid-tight communication at said distal end of said tube, and a flexible balloon membrane carried at said distal end of said tube, said balloon membrane being in fluid communication with one of said second and third lumens for inflation when pressurized fluid is introduced through said second and third lumens; said second lumen having a diameter sufficiently large between said proximal and distal ends of said tube to permit slidable passage of at least one treating element between said proximal and distal ends, whereby said at least one treating element may be moved between said proximal and distal ends of said tube through said second lumen under the force of pressurized fluid flowing through said second and third lumens. 14. The apparatus of claim 13 wherein said tube comprises three conjoined coaxial plastic tubes each having a proximal and a distal end, with the spaces between said coaxial tubes defining said second and third lumens, and the coaxial tube that is innermost having a