1. An implant for bone arthrodesis, comprising:
a fastener with an elongated shaft having a head at one end and a threaded portion at the opposite end terminating in a bone-piercing point;
a first washer having structure for engaging the head of said shaft so as to be polyaxially pivotable with respect to said head; and
a locking member comprising a nut having threads that cooperate with the threaded portion on said shaft, said locking member having a second washer pivotally engaged thereto by a clip.
2. A system for performing bone fixation, comprising:
an implant for bone fixation, comprising a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end; a first washer having a first structure for engaging the head of said shaft so as to be polyaxially pivotable with respect to said head; and a locking member having a second structure for engaging said shaft, said locking member having a second washer pivotally engaged thereto:
a bone fixation device, comprising an elongated cannula having a collet for detachably engaging said first washer and for advancing the first washer, and a third structure for engaging said fastener and for advancing the fastener through the collet and through the first washer;
said bone fixation device further comprising a lower end portion extending from said cannula, said lower end portion having a fourth structure for detachably engaging said locking member, said fastener, first washer, and locking member being aligned such that said advancing fastener will advance through said first washer, through said bone, and into said locking member.
3. A method for performing bone fixation, comprising the steps of:
providing an implant for bone fixation, comprising a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end; a first washer having a first structure for engaging the head of said shaft so as to be polyaxially pivotable with respect to said head; and a locking member having a second structure for engaging said shaft, said locking member having a second washer pivotally engaged thereto;
providing a bone fixation device, comprising an elongated cannula having a collet for detachably engaging said first washer and for advancing the first washer, and a third structure for engaging said fastener and for advancing the fastener through the collet and through the first washer; a lower end portion extending from said cannula, said lower end portion having a fourth structure for detachably engaging said locking member, said fastener, first washer, and locking member being aligned such that said advancing fastener will advance through said first washer, through said bone, and into said locking member;
positioning said bone fixation device with said bone between said cannula and said lower end portion;
operating said device to advance said first washer to said bone; and
operating said device to advance said fastener through said first washer, said bone, and said locking member.
4. A system for performing bone fixation, comprising:
an implant for bone fixation, comprising a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end; a first washer having a first structure for engaging the head of said shaft; and a locking member having a second structure for engaging said shaft;
a bone fixation device, comprising an elongated cannula having a third structure for detachably engaging said first washer and for advancing the first washer, and a fourth structure for engaging said fastener and for advancing and rotating the fastener through the first washer;
said bone fixation device further comprising a lower end portion extending from said cannula, said lower end portion having a fifth structure for detachably engaging said locking member, said fastener, first washer, and locking member being aligned such that said advancing fastener will advance through said first washer, drill through said bone, and advance into said locking member.
5. The system for performing bone fixation of claim 4, wherein said elongated cannula is detachable from said bone fixation device, whereby a replacement cannula having another implant can be attached to said device.
6. A method for performing bone fixation, comprising:
providing an implant for bone fixation, comprising a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end;
a first washer having a first structure for engaging the head of said shaft; and a locking member having a second structure for engaging said shaft;
providing a bone fixation device, comprising an elongated cannula having a third structure for detachably engaging said first washer and for advancing the first washer, and a fourth structure for detachably engaging said fastener and for advancing and rotating the fastener through the first washer;
said bone fixation device further comprising a lower end portion extending from said cannula, said lower end portion having a fifth structure for detachably engaging said locking member, said fastener, first washer, and locking member being aligned such that said advancing fastener will advance through said first washer, and advance into said locking member;
positioning said bone fixation device with said bone between said cannula and said lower end portion;
operating said device to advance said first washer to said bone; and
operating said device to advance and rotate said fastener through said washer, drill through said bone, and move into said locking member.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A system for re-surfacing a pavement surface, said system comprising:
a material dispersal device comprising:
a plurality of independent dispersing elements;
a plurality of biasing elements; and
a plurality of independent dispersing assemblies, wherein each independent dispersing assembly of said plurality of independent dispersing assemblies comprises at least one biasing element of said plurality of biasing elements coupled to at least one independent dispersing element of said plurality of independent dispersing elements;
a first delivery mechanism coupled to said material dispersal device; and
a first dispensing bar positioned between said material dispersal device and said first delivery mechanism.
2. The system for re-surfacing in accordance with claim 1 wherein each independent dispersing element of said plurality of independent dispersing elements is one of a brush and a blade.
3. The system for re-surfacing in accordance with claim 1 wherein said material dispersal device further comprises a frame, a first support member adjustably coupled to said frame, and a primary dispersing device comprising at least one independent dispersing assembly of said plurality of independent dispersing assemblies coupled to said first support member.
4. The system for re-surfacing in accordance with claim 3 wherein said primary dispersing device is configured to apply substantially uniform pressure across the pavement surface.
5. The system for re-surfacing in accordance with claim 3 wherein said material dispersal device further comprises a second support member adjustably coupled to said frame and a secondary dispersing device comprising at least one independent dispersing assembly of said plurality of independent dispersing assemblies coupled to said second support member.
6. The system for re-surfacing in accordance with claim 5 wherein said at least one independent dispersing assembly of said primary dispersing device is offset with respect to said at least one independent dispersing assembly of said secondary dispersing device.
7. The system for re-surfacing in accordance with claim 5 wherein said secondary dispersing device is configured to apply substantially uniform pressure across the pavement surface.
8. The system for re-surfacing in accordance with claim 1 wherein said first delivery mechanism is configured to apply a first spreadable material to the pavement surface and wherein said first dispersing bar is configured to disperse the first spreadable material on the pavement surface.
9. The system for re-surfacing in accordance with claim 1 further comprising a finishing bar extending from said material dispersal device.
10. The system for re-surfacing in accordance with claim 8 further comprising a first thermal biasing element located proximate said first dispersing bar, wherein said first thermal biasing element is configured to apply a thermal bias to the first spreadable material.
11. The system for re-surfacing in accordance with claim 8 wherein the first spreadable material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
12. The system for re-surfacing in accordance with claim 8 further comprising a second delivery mechanism configured to apply a second spreadable material to the pavement surface.
13. The system for re-surfacing in accordance with claim 12 wherein the second spreadable material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
14. The system for re-surfacing in accordance with claim 12 wherein the first spreadable material and the second spreadable material are different.
15. The system for re-surfacing in accordance with claim 12 further comprising a second dispersing bar configured to disperse the second spreadable material on the pavement surface.
16. The system for re-surfacing in accordance with claim 15 wherein said second delivery mechanism is located between said material dispersal device and said second dispersing bar.
17. The system for re-surfacing in accordance with claim 15 further comprising a second thermal biasing element located proximate said second dispersing bar, wherein said second thermal biasing element is configured to apply a second thermal bias to the second spreadable material.
18. A system for re-surfacing a pavement surface, said system comprising:
a material dispersal device comprising:
a frame;
a first support member adjustably coupled to said frame;
a second support member adjustably coupled to said frame;
a plurality of independent dispersing elements;
a plurality of biasing elements;
a plurality of independent dispersing assemblies, wherein each independent dispersing assembly of said plurality of independent dispersing assemblies comprises at least one biasing element of said plurality of biasing elements coupled to at least one independent dispersing element of said plurality of independent dispersing elements;
a primary dispersing device comprising at least one independent dispersing assembly of said plurality of independent dispersing assemblies coupled to said first support member; and
a secondary dispersing device comprising at least one independent dispersing assembly of said plurality of independent dispersing assemblies coupled to said second support member;
a delivery mechanism configured to apply a spreadable material to the pavement surface; and
a dispersing bar configured to disperse the spreadable material on the pavement surface.
19. The system for re-surfacing in accordance with claim 18 wherein each independent dispersing element of said plurality of independent dispersing elements is one of a brush and a blade.
20. The system for re-surfacing in accordance with claim 18 wherein the spreadable material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
21. The system for re-surfacing in accordance with claim 18 wherein said at least one independent dispersing assembly of said primary dispersing device is offset with respect to said at least one independent dispersing assembly of said secondary dispersing device.
22. The system for re-surfacing in accordance with claim 18 wherein said primary dispersing device and said secondary dispersing device are configured to apply substantially uniform pressure across the pavement surface.
23. The system for re-surfacing in accordance with claim 18 wherein said delivery mechanism is located between said material dispersal device and said dispersing bar.
24. The system for re-surfacing in accordance with claim 18 wherein said dispersing bar is located between said delivery mechanism and said material dispersal device.
25. The system for re-surfacing in accordance with claim 18 further comprising a thermal biasing element located proximate said dispersing bar, wherein said thermal biasing element is configured to apply a thermal bias to the spreadable material.
26. The system for re-surfacing in accordance with claim 18 further comprising a finishing bar extending from said material dispersal device.
27. A method for re-surfacing a pavement surface, said method comprising:
applying a first spreadable material to the pavement surface using a first delivery mechanism; and
dispersing the first spreadable material on the pavement surface using a first dispersing bar configured to apply substantially uniform pressure across the pavement surface; and
applying a second spreadable material to the first spreadable material on the pavement surface using a second delivery mechanism, and dispersing the second spreadable material using a second dispersing bar.
28. The method for re-surfacing in accordance with claim 27 wherein the first spreadable material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
29. The method for re-surfacing in accordance with claim 27 further comprising applying a first thermal bias to the first spreadable material using a first thermal biasing element.
30. The method for re-surfacing in accordance with claim 27 further comprising applying a slurry material to the re-surfaced pavement surface using a material dispersal device, wherein the thickness of the slurry material is substantially uniform across the pavement surface.
31. The method for re-surfacing in accordance with claim 30 wherein the slurry material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
32. The method for re-surfacing in accordance with claim 30 wherein the first spreadable material and the slurry material are different.
33. The method for re-surfacing in accordance with claim 27 wherein the second spreadable material comprises at least one of an emulsion oil, a slurry material, and an aggregate.
34. The method for re-surfacing in accordance with claim 27 further comprising applying a second thermal bias to the second spreadable material using a second thermal biasing element.
35. The method for re-surfacing in accordance with claim 27 further comprising covering the re-surfaced pavement surface with an aggregate.
36. The method for re-surfacing in accordance with claim 27 further comprising texturing the re-surfaced pavement surface using a finishing bar to create a surface texture.
37. The method for re-surfacing in accordance with claim 27 wherein the thickness of the re-surfacing material is less than about \u215c inches.
38. The method for re-surfacing in accordance with claim 27 wherein dispersing the first spreadable material comprises using a plurality of independent dispersing assemblies, wherein each independent dispersing assembly of the plurality of independent dispersing assemblies comprises at least one biasing element coupled to at least one independent dispersing element.