Surgical bone cutting assembly and method of using same
First Claim
1. A surgical kit having component parts capable of use in excising a cartilage defect area of a patient to prepare the area for receipt of an implant plug, said kit comprising:
- a gauge apparatus used to measure the extent of the cartilage defect area and guide a guide rod, said gauge apparatus having a substantially cylindrical shaped body defining a central throughgoing bore of a diameter sufficient to receive said guide rod, a plurality of legs formed on said body extending away from the distal end of said tube body, a longitudinal marking line formed in at least one of said legs and an exterior surface of said gauge body;
a guide rod adapted to be driven through said gauge apparatus bore into said defect area; and
cartilage cutting means adapted to be mounted over said guide rod, said cartilage cutting means comprising a reamer bit defining a cannula adapted to be mounted over said guide rod for excising the defect area and cutting a blind cylindrical bore into a patient'"'"'s condyle.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention is directed toward a surgical kit having component parts capable of use in excising a cartilage defect site on a patient to prepare the same for receipt of an implant plug, the kit comprising a cylindrical gauge with a central bore used to measure the defect area, a guide rod adapted to be driven through the gauge tube into the center of said defect area and a cartilage cutting assembly adapted to be mounted over the guide rod and used for excising the defect area and cutting a cylindrical bore into the defect area. The method for use of the kit comprises the steps of: marking the defect area to be cut; placing a guide rod into the center defect area and driving the same to a predetermined distance to secure the same in the defect area and placing a drill bit over the guide rod and rotating the drill bit to cut a cylindrical blind bore removing the cartilage defect.
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Citations
20 Claims
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1. A surgical kit having component parts capable of use in excising a cartilage defect area of a patient to prepare the area for receipt of an implant plug, said kit comprising:
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a gauge apparatus used to measure the extent of the cartilage defect area and guide a guide rod, said gauge apparatus having a substantially cylindrical shaped body defining a central throughgoing bore of a diameter sufficient to receive said guide rod, a plurality of legs formed on said body extending away from the distal end of said tube body, a longitudinal marking line formed in at least one of said legs and an exterior surface of said gauge body; a guide rod adapted to be driven through said gauge apparatus bore into said defect area; and cartilage cutting means adapted to be mounted over said guide rod, said cartilage cutting means comprising a reamer bit defining a cannula adapted to be mounted over said guide rod for excising the defect area and cutting a blind cylindrical bore into a patient'"'"'s condyle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A surgical kit having component parts capable of use in excising a cartilage defect area of a patient to prepare the area for receipt of an implant plug, said kit comprising:
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a plurality of gauge guide members used to measure the defect area, each of said gauge guide members being provided with a throughgoing central bore adapted to receive a guide rod; a guide rod centering tube for insertion into a gauge guide member, said guide rod centering tube comprising a tubular body with a cap mounted over its proximal end, the cap defining a centrally positioned aperture which is sized to receive a guide rod and an end piece secured to the distal end of said tubular body, said end piece defining a centrally positioned aperture which is axially aligned with said cap aperture; a guide rod adapted to be driven through said bore of a selected gauge guide member into the center of said defect area; and cartilage cutting means comprising a plurality of reamer bits adapted to be mounted over said guide rod, each reamer bit defining a central cannula adapted to be mounted over said guide rod, a distal cutting surface for cutting a cylindrical blind bore into a patients cartilage and bone to excise the cartilage defect area and quick disconnect means on its proximal end. - View Dependent Claims (10)
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11. A surgical kit having component parts capable of use in excising a cartilage defect site of a patient to prepare the same for receipt of an implant plug, said kit comprising:
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a gauge member used to measure the defect area and guide a guide rod;
said gauge member comprising a body defining a central throughgoing bore, a plurality of legs secured to said body extending away from the distal end of said body, and a marking sight line formed on an exterior surface of at least one leg;a guide rod adapted to be mounted in said gauge member body through going bore and driven into the center of said defect area; and cartilage cutting means adapted to be mounted over said guide rod, said cartilage cutting means comprising a cannular reamer bit adapted to be mounted over said guide rod for excising the defect area and cutting a blind cylindrical bore into a patients defect area, said reamer bit being constructed to score the outer diameter of the cartilage area before cutting into the defect area. - View Dependent Claims (12, 13, 14, 15)
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16. A method of excising a cartilage defect area in a patient comprising the steps of:
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a) marking the defect area to be cut with a cylindrical gauge defining a central throughgoing bore; b) placing a guide rod through said central bore into the center of said defect area and driving the guide rod a predetermined distance in the defect area to secure the guide rod in the defect area; and c) placing a reamer bit over the guide rod and rotating the reamer bit cut to cut a cylindrical blind bore removing the cartilage defect area.
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17. A surgical kit having component parts capable of use in excising a cartilage defect area of a patient to prepare the area for receipt of an implant plug, said kit comprising;
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a plurality of gauge guide members used to measure the defect area, each of said gauge guide members being provided with a throughgoing central bore adapted to receive a guide rod; a guide rod adapted to be driven through said bore of a selected gauge guide member into the center of said defect area; cartilage cutting means comprising a plurality of reamer bits adapted to be mounted over said guide rod, each reamer bit defining a central cannula adapted to be mounted over said guide rod, a distal cutting surface for cutting a cylindrical blind bore into a patients cartilage and bone to excise the cartilage defect area and quick disconnect means on its proximal end; and a punch cutter, said punch cuter comprising a cylindrical cutting tube, a distal end of said cutting tube forming a cutting edge and a proximal end of said cutting tube being formed with connection means, insert means mounted inside said cylindrical cutting tube, said insert means comprising a hub defining a central throughgoing bore, a plurality of arms extending outward from said hub and a cylindrical rim member mounted on the distal ends of said arms, an outer surface of said rim member engaging an inner surface of said cylindrical cutting tube when said insert means is mounted inside said cylindrical cutting tube.
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18. A surgical kit having component parts capable of use in excising a cartilage defect area of a patient to prepare the area for receipt of an implant plug, said kit comprising;
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a plurality of gauge guide members used to measure the defect area, each of said gauge guide members being provided with a throughgoing central bore adapted to receive a guide rod; a guide rod adapted to be driven through said bore of a selected gauge guide member into the center of said defect area; cartilage cutting means comprising a plurality of reamer bits adapted to be mounted over said guide rod, each reamer bit defining a central cannula adapted to be mounted over said guide rod, a distal cutting surface for cutting a cylindrical blind bore into a patients cartilage and bone to excise the cartilage defect area and quick disconnect means on its proximal end; and a handle assembly, said handle assembly comprising an impact member with a throughgoing bore, opposing arms extending from said impact member, a cylindrical tubular section secured to said impact member and axially aligned with said throughgoing bore, a shaft defining a cannula removably mounted at its proximal end to said tubular section and collar mounted to a distal end of said shaft. - View Dependent Claims (19, 20)
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Specification