Power-driven osteotome tools for compaction of bone tissue
AssigneesImplant Innovations, Inc., Palm Beach Gardens, Inc.
InventorKeith D. Beaty
Life of this patent
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Abstract
The invention set forth includes a set of tools which compact bone tissue as they develop a bore in the bone tissue and a driving mechanism for providing movement to the tools. The tools have engaging surfaces which displace bone tissue radially outward with respect to a central axis of the tool to create high density bone tissue at the wall defining the bore. The driving mechanism may provide only vibrational movement to assist in inserting the tool. Alternatively, the driving mechanism may provide translational movement in the longitudinal direction with respect to the tool to insert the tool into the bone.
Claims102
A method for developing a bore in living bone, said method comprising the steps of:
- developing a pilot hole through an exterior surface of said bone, said pilot hole being defined by a first wall that is generally cylindrical;
- providing an elongated tool having a central axis, a lower end, an upper end and an engaging surface between said lower and upper ends, said tool having a generally circular cross-section taken perpendicular to said central axis, said cross-section having an area that decreases from said upper end to said lower end, said lower end being dimensioned for insertion into said pilot hole;
- providing a driving mechanism capable of providing movement to said tool;
- coupling said driving mechanism to said tool;
- inserting said lower end of said tool into said pilot hole;
- activating said movement of said driving mechanism;
- moving said upper end of said tool toward said pilot hole so that said engaging surface of said tool forces said first wall radially outward with respect to said central axis of said tool to create a bore wall with high-density bone tissue at a region of said bore that is adjacent to said exterior surface;
- and
- extracting said tool from said bore with generally no effect on the bone density at said region of said bore wall adjacent to said exterior surface.
A method for developing a bore in living bone, said living bone having an internal wall defining a pilot hole at the site where said bore is to placed, said method comprising the steps of:
- providing an elongated tool having a central axis, a lower end, an upper end and an engaging surface between said lower and upper ends, said engaging surface having a sequence of regions from said lower end to said upper end that increase in cross-sectional area;
- providing a driving mechanism capable of providing longitudinal movement;
- coupling said driving mechanism to said tool such that said longitudinal movement is substantially in the direction of said central axis of said tool;
- inserting said lower end of said tool into said pilot hole;
- activating said longitudinal movement of said driving mechanism to move said upper end of said tool toward said pilot hole so that sections of said internal wall of said pilot hole are progressively acted upon by said sequence of regions of increased cross-sectional area to create high-density bone tissue along a substantial portion of said length of said bore wall;
- and
- extracting said tool from said bore wall.
A method for developing a bore in living bone, said living bone having an internal wall defining a pilot hole at the site where said bore is to placed, said method comprising the steps of:
- providing an elongated tool having a central axis, a lower end, an upper end and an engaging surface between said lower and upper ends, said engaging surface having a sequence of regions from said lower end to said upper end that increase in cross-sectional area;
- providing a driving mechanism capable of providing vibrational movement;
- coupling said driving mechanism to said tool;
- inserting said lower end of said tool into said pilot hole;
- actuating said vibrational movement of said driving mechanism;
- moving said upper end of said tool toward said pilot hole so that said sequence of regions of said engaging surface progressively act upon and force said internal wall of said pilot hole radially outward with respect to said central axis to create high-density bone tissue along said substantial portion of said length of said bore wall;
- and
- extracting said tool from said bore.
A combination of a bone-compaction tool and a driving mechanism for creating in living bone a bore that is defined by a bore wall with high-density bone tissue,
- said tool having a central axis, a lower end, an upper end, an engaging surface between said lower and upper ends, and a generally circular cross-section taken perpendicular to said central axis, said engaging surface including a mid-point located equidistant from said lower and upper ends, a cross-section at said upper end being larger than a cross-section at said mid-point, a cross-section at said mid-point being larger than a cross-section at said lower end, said engaging surface being configured to maintain substantially all of said bone within said bore when said tool is extracted therefrom;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for providing longitudinal movement to said tool.
A combination of a plurality of bone-compacting tools and a driving mechanism for creating in living bone a bore defined by a bore wall that has high-density bone tissue,
- said plurality of tools each having a central axis, a lower end, an upper end and an engaging surface between said lower and upper ends, said engaging surface having a sequence of regions from said lower end to said upper end that increase in cross-sectional area, said engaging surface being configured to maintain substantially all of said bone within said bore when said tool is extracted therefrom, said plurality of tools including at least one tool having a larger cross-sectional area adjacent to said lower end than said remaining ones of said set of tools;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said upper end of a selected tool of said plurality of tools, said driving mechanism further including means for providing vibrational movement to said selected tool.
A combination of a tool and a driving mechanism for creating in living bone a bore that has high-density bone tissue, said tool having a central axis a lower end having a lowermost edge, an upper end, and a cutting edge, said cutting edge being exclusively at said a lowermost edge of said lower end;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for moving said tool.
A combination of a tool and a driving mechanism for creating in living bone a bore that defined by a bore wall having high-density bone tissue, said tool having a central axis, a lower end, an upper end and a bone-engaging surface between said lower and upper ends, said bone-engaging surface for compacting bone tissue on said bore wall to create said high-density bone tissue, said bone-engaging surface gradually tapering over a substantial portion of its length;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for imparting non-rotational movement to said tool.
A method for transferring bone tissue from a section of a bore to a deposit region of said bore, said bore being defined by a bore wall, said method comprising the steps of:
- providing an elongated tool having a lower end, an upper end, a cutting edge adjacent to said lower end, and a gathering section adjacent to said cutting edge for receiving said bone tissue to be transferred,
- providing a driving mechanism capable of providing movement to said tool;
- coupling said driving mechanism to said tool;
- inserting said lower end of said tool into said bore;
- moving said upper end of said tool said bore so that said cutting edge of said tool removes said bone tissue from said bore wall while said driving mechanism is providing said movement to said tool;
- collecting said removed bone tissue in said gathering section;
- continuing moving said tool into said bore;
- depositing said removed bone tissue at said deposit region of said bore;
- and
- extracting said tool from said bore after said gathering section has reached said deposit region of said bore.
A system for creating in living bone a bore that defined by a bore wall having high-density bone tissue, said system comprising:
- a tool having a central axis, a lower end, an upper end and a bone-engaging surface between said lower and upper ends, said bone-engaging surface for compacting bone tissue on said bore wall to create said high-density bone tissue;
- a driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism imparting movement to said tool;
- means for sensing a characteristic of said tool, said sensing means producing signals, said sensing means being one of the group consisting of a position sensor and a movement sensor;
- and
- a controller coupled to said driving mechanism and said sensing means, said controller controlling the operation of said driving mechanism in response to said signals received from said sensing means.
A combination of a compaction tool and a driving mechanism for creating in living bone a bore that has high-density bone tissue,
- said compaction tool having a central axis, a lower end, an upper end, and means for delivering a material to a region of said bore, said delivering means being located at least partially within an interior portion of said tool;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for moving said tool.
A combination of a compaction tool and a driving mechanism for creating in living bone a bore that has high-density bone tissue,
- said compaction tool having a central axis, a lower end, an upper end, and an engaging surfaces between said lower end and said upper end, said engaging surface having a plurality of sections for displacing bone tissue that is initially in the area defined by said bore substantially in the radial direction relative to said central axis, said plurality of sections becoming progressively larger in diameter from said lower end to said upper end, each of said sections having a cross section that is substantially circular;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for moving said tool.
A combination of a set of tools and a driving mechanism for creating in living bone a bore that has high-density bone tissue, said set of tools including a plurality of tools each having a central axis, a lowermost end, and an uppermost end, each of said set of tools having a cutting edge exclusively at said lowermost end, said set of tools including at least one tool having a larger cross-sectional area adjacent to said lowermost end than remaining ones of said set of tools;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said upper end of a selected tool of said set of tools, said driving mechanism further including mechanical means for longitudinally moving said selected tool of said set of tools.
A combination of a set of tools and a driving mechanism for creating in living bone a bore that defined by a bore wall having high-density bone tissue, said set including a plurality of tools each having a central axis, a lowermost end, an uppermost end and a bone-engaging surface extending directly behind said lowermost end, said bone-engaging surface for compacting bone tissue on said bore wall to create said high-density bone tissue;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said uppermost end of a selected tool of said set of tools, said driving mechanism further including mechanical means for imparting non-rotational movement to said selected tool of said set of tools.
A combination of a compaction tool and a driving mechanism for creating in living bone a bore that has high-density bone tissue, said compaction tool having a central axis, a lower end, an upper end, and a bone-engaging surface between said lower end and said upper end, said bone-engaging surface for displacing bone tissue that is initially in the area defined by said bore primarily in the radial direction to said central axis, said bone-engaging surface having a lower segment adjacent to said lower end that tapers outwardly towards said upper end, a middle segment adjacent to said lower segment, and an upper segment adjacent to said middle segment, said upper segment having a diameter that is greater than a diameter of said lower and middle segments;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said upper end of said tool, said driving mechanism further including mechanical means for longitudinally moving said tool.
A combination of a bone-compaction tool and a driving mechanism for creating in living bone a bore that is defined by a bore wall with high-density bone tissue,
- said tool having a central axis, a lower end, an upper end, an engaging surface between said lower and upper ends, and a generally circular cross-section taken perpendicular to said central axis, said cross-section having an area that decreases from said upper end to said lower end, said engaging surface being configured to maintain substantially all of said bone within said bore when said tool is extracted therefrom, said tool including marking means positioned at predetermined distances from said lower end;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for providing longitudinal movement to said tool.
A combination of a bone-compaction tool and a driving mechanism for creating in living bone a bore that is defined by a bore wall with high-density bone tissue,
- said tool having a central axis, a lower end, an upper end, an engaging surface between said lower and upper ends, and a generally circular cross-section taken perpendicular to said central axis, said cross-section having an area that decreases from said upper end to said lower end, said engaging surface being configured to maintain substantially all of said bone within said bore when said tool is extracted therefrom, said lower end having an inwardly concave shape;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for providing longitudinal movement to said tool.
A combination of a bone-compaction tool and a driving mechanism for creating in living bone a bore that is defined by a bore wall with high-density bone tissue,
- said tool having a central axis, a lower end, an upper end, an engaging surface between said lower and upper ends, and a generally circular cross-section taken perpendicular to said central axis, said cross-section having an area that decreases from said upper end to said lower end, said engaging surface being configured to maintain substantially all of said bone within said bore when said tool is extracted therefrom, said lower end having an outwardly convex shape;
- and
- said driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism further including means for providing longitudinal movement to said tool.
A system for creating in living bone a bore that defined by a bore wall having high-density bone tissue, said system comprising:
- a tool having a central axis, a lower end, an upper end and a bone-engaging surface between said lower and upper ends, said bone-engaging surface for compacting bone tissue on said bore wall to create said high-density bone tissue;
- a driving mechanism including means for interchangeably coupling said driving mechanism to said tool, said driving mechanism imparting movement to said tool;
- means for sensing a characteristic of said tool, said sensing means producing signals;
- a controller coupled to said driving mechanism and said sensing means, said controller controlling the operation of said driving mechanism in response to said signals received from said sensing means;
- and
- means for inputting an operational characteristic of said tool by said clinician, said inputting means being coupled to said controller.
Dependencies are inferred from the claim text.