# US 2014/0155905 A1 · Adjustable drill depth guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155905 A1 - Document ID: US20140155905A1 - Status: Published application - Kind: A1 - Application number: 14/087,094 - Filed: 2013-11-22 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Ebi, LLC - Applicants: Ebi, LLC - Inventors: Matthew L. KEISER - Web page: https://patentgrep.com/patent/US20140155905A1 ## CPC - A61B 17/17: Guides {or aligning means} for drills {, mills, pins or wires} - A61B 2090/034: {abutting on parts of the device itself} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An adjustable drill depth guide includes a first sleeve, a second sleeve and a stop member. The first sleeve includes a longitudinal axis and defines a helical slot disposed about the longitudinal axis. The second sleeve is concentrically arranged relative to the first sleeve and is axially adjustable relative to the first sleeve for adjusting a length of the adjustable drill depth guide. The stop member extends radially from the second sleeve and is disposed in the helical slot. The stop member is selectively received at various positions along the helical slot to positively locate the second sleeve relative to the first sleeve in the axial direction. ## Claims ### Claim 1 An adjustable drill depth guide comprising: a first sleeve having a longitudinal axis and defining a helical slot disposed about the longitudinal axis; a second sleeve concentrically arranged relative to the first sleeve and axially adjustable relative to the first sleeve for adjusting a length of the adjustable drill depth guide; and a stop member radially extending from the second sleeve and disposed in the helical slot, the stop member selectively received at various positions along the helical slot to positively locate the second sleeve relative to the first sleeve in the axial direction. ### Claim 2 (depends on 1) The adjustable drill depth guide of claim 1, wherein the first sleeve further defines a plurality of notches extending from the helical slot, each notch of the plurality of notches adapted to selectively receive the stop member and thereby establish a unique length of the adjustable drill depth guide. ### Claim 3 (depends on 2) The adjustable drill depth guide of claim 2, wherein each notch of the plurality of notches extends in the axial direction. ### Claim 4 (depends on 1) The adjustable drill depth guide of claim 1, wherein the helical slot extends more than 360° about the first sleeve in the radial direction. ### Claim 5 (depends on 1) The adjustable drill depth guide of claim 1, further comprising a biasing member biasing the stop member into selective engagement with one of the notches of the plurality of notches. ### Claim 6 (depends on 5) The adjustable drill depth guide of claim 5, further comprising a bone engagement end, and wherein the biasing member is operable to bias the stop member in the direction of the bone engagement end. ### Claim 7 (depends on 6) The adjustable drill depth guide of claim 6, wherein the second sleeve includes an annular groove and a retaining ring disposed within the annular groove, and wherein the retaining ring is operable to prevent movement of the first sleeve relative to the bone engagement end. ### Claim 8 An adjustable drill depth guide comprising: a first sleeve having a longitudinal axis, a first proximal end, a first distal end, a first longitudinal bore extending from the first proximal end to the first distal end, a helical slot disposed about the longitudinal axis, and a plurality of notches extending axially from the helical slot; a second sleeve at least partially disposed within the first longitudinal bore, the second sleeve extending along the longitudinal axis from a second proximal end to a second distal end and including a second longitudinal bore and a radially extending stop member selectively engageable with at least one notch of the plurality of notches; a third sleeve having a third proximal end, a third distal end, and a third longitudinal bore extending from the third proximal end to the third distal end, the third sleeve concentrically disposed relative to the first sleeve; and a biasing member disposed substantially adjacent to an outer wall of the third sleeve and biasing the second proximal end in the direction of the third distal end. ### Claim 9 (depends on 8) The adjustable drill depth guide of claim 8, wherein the second proximal end and the third distal end define a length of the drill depth guide. ### Claim 10 (depends on 8) The adjustable drill depth guide of claim 8, wherein the biasing member biases the radially extending stop member in the direction of the third distal end. ### Claim 11 (depends on 8) The adjustable drill depth guide of claim 8, wherein the third sleeve is rotatably mounted relative to the first sleeve. ### Claim 12 (depends on 8) The adjustable drill depth guide of claim 8, further comprising a fourth sleeve extending from a fourth proximal end to a fourth distal end, and having a fourth longitudinal bore extending from the fourth proximal end to the fourth distal end, wherein the fourth proximal end at least partially disposed within the second longitudinal bore. ### Claim 13 (depends on 12) The adjustable drill depth guide of claim 12, wherein the fourth sleeve includes a radially extending flange defining an axial stop surface, and wherein the biasing member is disposed between the axial stop surface and the first distal end of the first sleeve. ### Claim 14 (depends on 12) The adjustable drill depth guide of claim 12, wherein the fourth sleeve includes a radially extending aperture, and wherein the radially extending stop member is at least partially disposed within the radially extending aperture. ### Claim 15 (depends on 8) The adjustable drill depth guide of claim 8, further comprising a collar having a fifth longitudinal bore, wherein the first sleeve, the third sleeve, and the fourth sleeve are each at least partially disposed within the fifth longitudinal bore. ### Claim 16 (depends on 15) The adjustable drill depth guide of claim 15, wherein the first sleeve includes an annular groove and a retaining ring disposed within the annular groove, and wherein the retaining ring is operable to prevent movement of the first sleeve relative to the collar along the longitudinal axis. ### Claim 17 (depends on 16) The adjustable drill depth guide of claim 16, further comprising at least one washer element axially disposed between the collar and the third proximal end. ### Claim 18 (depends on 17) The adjustable drill depth guide of claim 17, wherein the retaining ring is operable to axially engage the at least one washer element. ### Claim 19 (depends on 8) The adjustable drill depth guide of claim 8, further comprising a handle assembly, the handle assembly including a collar element defining a sixth longitudinal bore, wherein the first sleeve is at least partially disposed within the sixth longitudinal bore. ### Claim 20 (depends on 8) The adjustable drill depth guide of claim 8, wherein the helical slot extends more than 360° about the first sleeve in a radial direction. ### Claim 21 A method of adjusting the length of a drill depth guide, the method comprising: providing an adjustable drill depth guide including a first sleeve having a helical slot, a second sleeve at least partially disposed within the first sleeve, a radially extending stop member coupled to the third sleeve and operably disposed within the helical slot, and a biasing member biasing a distal end of the second sleeve in a first axial direction; moving the radially extending stop member in a second axial direction opposite the first axial direction; and rotating the second sleeve relative to the first sleeve to move the radially extending stop member in at least one of the first axial direction and the second axial direction.