# US 8,465,491 B2 · Bone drill > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,465,491 B2 - Document ID: US8465491B2 - Status: Granted - Kind: B2 - Application number: 11/788,413 - Filed: 2007-04-20 - Published: 2007-12-06 - Granted: 2013-06-18 - Earliest claimed: 2006-06-01 - Assignees: Osteo Innovations LLC - Applicants: Joseph W. Yedlicka; Robert A. Till, Jr.; Nancy S. Yedlicka; Patricia M. Till - Inventors: Joseph W. Yedlicka; Robert A. Till, Jr.; Nancy S. Yedlicka; Patricia M. Till - Web page: https://patentgrep.com/patent/US8465491B2 ## CPC - A61B 17/1624: {Drive mechanisms therefor} - A61B 17/1615: {Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material} - A61B 17/1622: {Drill handpieces (A61B17/1626, A61B17/1628 take precedence)} - A61B 17/1671: {for the spine} - A61B 17/1633: {Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft (A61B17/1644 takes precedence)} - A61B 2017/00902: {transparent or translucent} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A radiolucent bone drill and/or impact drill is provided, which includes a first portion connected to a second portion. The first portion defines a first axis and the second portion defines a second axis. The second axis is disposed at an angle relative to the first axis. A third portion is connected to the second portion. The third portion has a shaft extending therefrom. The shaft includes a distal end configured to engage bone. The bone drill may include a radiation protection guard mounted to the first portion. Specific drill bits, access sheaths/conduits/tube, curettes, and screwdriver bits designed to be used with the devices are provided. The bone drill may be used to place an access sheath/conduit/tube/needle into a bone in a single step. Methods of use are also disclosed. ## Claims ### Claim 1 A bone drill comprising: an elongate tubular handle member defining a first longitudinal axis and having a proximal end and a distal end, an elongate tubular drive member defining a second longitudinal axis and having a proximal end and a distal end, the proximal end of the elongate tubular drive member being connected to the distal end of the elongate tubular handle member such that the second longitudinal axis is disposed at an angle offset from the first longitudinal axis, the offset angle ranging from 5 to 45 degrees relative to the first longitudinal axis; a cylindrical head portion connected to the distal end of the elongate tubular drive member, the cylindrical head portion defining a third longitudinal axis that is disposed at an angle offset from the first longitudinal axis, or at an angle offset from both the first and second longitudinal axes; a tubular sheath extending from the cylindrical head portion along a transverse axis relative to the first, second and third longitudinal axes, the tubular sheath including a distal end configured to engage bone; and a drill bit axially disposed within and extending along the length of the tubular sheath, the drill bit comprising a distal tip that extends past the distal end of the tubular sheath. ### Claim 2 (depends on 1) A bone drill as recited in claim 1, further comprising radio opaque markers configured for alignment of the bone drill during a fluoroscopy procedure. ### Claim 3 (depends on 1) A bone drill as recited in claim 1, wherein the cylindrical head portion is formed of the radiolucent material and the tubular sheath is formed of radiolucent and radio opaque materials. ### Claim 4 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath is configured to rotate independent of the drill bit and subsequent to drilling of a hole to a partial depth in a bone by the drill bit. ### Claim 5 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath is configured to rotate relative to the cylindrical head portion. ### Claim 6 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath is configured to rotate in an oscillating configuration such that the distal end rotates in a clockwise direction and a counterclockwise direction. ### Claim 7 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath is configured for axial movement relative to the cylindrical head portion. ### Claim 8 (depends on 7) A bone drill as recited in claim 7, wherein the axial movement is spring driven to facilitate an impact engagement of the distal end and the bone. ### Claim 9 (depends on 1) A bone drill as recited in claim 1, further comprising a radiation protection guard mounted to the elongate tubular handle member. ### Claim 10 (depends on 1) The bone drill as recited in claim 1, further comprising a gearing assembly disposed within the cylindrical head, the gearing assembly configured to rotate the drill bit independently of the tubular sheath at a first speed, and rotate the tubular sheath independently of the drill bit at a second speed that is slower than the first speed. ### Claim 11 (depends on 10) A bone drill as recited in claim 10, further comprising a brake configured to control rotation of the tubular sheath. ### Claim 12 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath includes external threads that are configured to control feed rate of the drill bit into bone. ### Claim 13 (depends on 12) A bone drill as recited in claim 12, wherein the tubular sheath includes a radially extending stop. ### Claim 14 (depends on 1) A bone drill as recited in claim 1, wherein the drill bit has an outer cutting sheath and an inner drill bit. ### Claim 15 (depends on 14) A bone drill as recited in claim 14, wherein the outer cutting sheath is removable from the tubular sheath for implanting with bone. ### Claim 16 (depends on 1) A bone drill as recited in claim 1, wherein the distal end of the tubular sheath includes a plurality of cutting tines. ### Claim 17 (depends on 1) A bone drill as recited in claim 1, wherein the tubular sheath and the drill bit are independently axially movable relative to the cylindrical head portion. ### Claim 18 A bone drill comprising: an elongate tubular handle member defining a first longitudinal axis and having a proximal end and a distal end, an elongate tubular drive member defining a second longitudinal axis and having a proximal end and a distal end, the proximal end of the elongate tubular drive member being connected to the distal end of the elongate tubular handle member such that the second longitudinal axis is disposed at an angle ranging from 0 to 45 degrees relative to the first longitudinal axis; a cylindrical head portion connected to the distal end of the elongate tubular drive member, the cylindrical head portion defining a third longitudinal axis that is disposed at an angle relative to the first longitudinal axis, or at an angle offset from both the first and second longitudinal axes; a tubular sheath extending from the cylindrical head portion and configured for axial movement relative to the cylindrical head portion, the tubular sheath including a distal end configured to engage bone, the axial movement being spring driven to facilitate an impact engagement of the distal end and the bone; and a drill bit axially disposed within and extending along the length of the tubular sheath, the drill bit comprising a distal tip that extends past the distal end of the tubular sheath. ### Claim 19 A bone drill comprising: an elongate tubular handle member defining a first longitudinal axis and having a proximal end and a distal end, an elongate tubular drive member defining a second longitudinal axis and having a proximal end and a distal end, the proximal end of the elongate tubular drive member being connected to the distal end of the elongate tubular handle member such that the second longitudinal axis is disposed at an angle ranging from 0 to 45 degrees relative to the first longitudinal axis; a cylindrical head portion connected to the distal end of the elongate tubular drive member, the cylindrical head portion defining a third longitudinal axis that is disposed at an angle relative to the first longitudinal axis, or at an angle offset from both the first and second longitudinal axes; a tubular sheath extending from the cylindrical head portion, the tubular sheath including a distal end configured to engage bone; and a drill bit axially disposed within and extending along the length of the tubular sheath, the drill bit comprising an outer cutting sheath, an inner drill bit and a distal tip that extends past the distal end of the tubular sheath.