# US 11,076,868 B2 · Vacuum drill guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,076,868 B2 - Document ID: US11076868B2 - Status: Granted - Kind: B2 - Application number: 16/525,507 - Filed: 2019-07-29 - Published: 2021-02-04 - Granted: 2021-08-03 - Earliest claimed: 2019-07-29 - Assignees: Thomas Ward Omohundro - Applicants: Thomas Ward Omohundro; Charles Peter Darby - Inventors: Thomas Ward Omohundro; Charles Peter Darby - Web page: https://patentgrep.com/patent/US11076868B2 ## CPC - 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 17/17: Guides {or aligning means} for drills {, mills, pins or wires} - A61B 17/1635: {for grafts, harvesting or transplants} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2217/005: with suction drainage system - A61M 1/79: {Filters for solid matter (specially adapted for dental use A61C17/065)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A vacuum drill guide includes an elongated structure having an internal axial passageway formed therethrough, a first end of the elongated structure terminating in a drill bushing affixed to a first end of the elongated structure, the drill bushing having an axial slot communicating with the internal axial passageway of the elongated structure, the drill bushing further having a longitudinal bore formed therethrough to receive a drill bit and allow the received drill bit to rotate, a second end of the elongated structure opposite the first end terminating in a vacuum hose fitting communicating with the axial passageway, a chip recovery chamber disposed along the internal axial passageway between the first end and the second end of the elongated structure, and a vacuum filter disposed in the internal axial passageway between the chip recovery chamber and the first end of the elongated structure. ## Claims ### Claim 1 A vacuum drill guide comprising: an elongated structure having an internal axial passageway formed therethrough; a first end of the elongated structure terminating in a drill bushing attached to a first end of the elongated structure, the drill bushing having an axial slot formed in a wall thereof and communicating with the internal axial passageway of the elongated structure, the drill bushing further having a longitudinal bore formed therethrough to receive a drill bit and allow the received drill bit to rotate, a second end of the elongated structure opposite the first end terminating in a vacuum hose fitting communicating with the axial passageway; a chip recovery chamber disposed along the internal axial passageway between the first end and the second end of the elongated structure; and a vacuum filter disposed in the internal axial passageway between the chip recovery chamber and the first end of the elongated structure. ### Claim 2 (depends on 1) The vacuum drill guide of claim 1 wherein the drill bushing is attached to the first end of the elongated structure at an angle of less than 90°. ### Claim 3 (depends on 1) The vacuum drill guide of claim 1 wherein the drill bushing is attached to the first end of the elongated structure by one of friction fitting and an adhesive at the first end of the elongated structure. ### Claim 4 (depends on 3) The vacuum drill guide of claim 3 wherein the longitudinal bore of the drill bushing is integrally formed therethrough to receive a drill bit. ### Claim 5 (depends on 3) The vacuum drill guide of claim 3 wherein the longitudinal bore of the drill bushing is formed in an insert received in a longitudinal aperture in the drill bushing. ### Claim 6 (depends on 1) The vacuum drill guide of claim 1 wherein the elongated structure comprises four segments, a first segment including the drill bushing, a second segment including a drill bit receiver arm at the first end of the elongated structure, a third segment including the chip recovery chamber, and a fourth segment including the vacuum hose fitting terminating in the second end of the elongated structure. ### Claim 7 (depends on 6) The vacuum drill guide of claim 6 wherein the first, second, third, and fourth segments are detachable from one another. ### Claim 8 (depends on 7) The vacuum drill guide of claim 7 wherein the vacuum filter is received into an end of the fourth segment opposite an end terminating in the vacuum hose fitting. ### Claim 9 (depends on 7) The vacuum drill guide of claim 7 wherein: the, second, third, and fourth segments have diameters selected to allow the second and fourth segments to connect by slip fit into opposite ends of the third segment; and the first segment has a diameter selected to allow the second segment to connect by slip fit into a distal end of the first segment. ### Claim 10 (depends on 7) The vacuum drill guide of claim 7 wherein connecting ends of the second and fourth segments and ends of the third segment include mating fasteners. ### Claim 11 (depends on 10) The vacuum drill guide of claim 10 where the mating fasteners are bayonet fittings. ### Claim 12 (depends on 6) The vacuum drill guide of claim 6 wherein the first, second, third, and fourth segments are formed from polycarbonate material. ### Claim 13 (depends on 1) The vacuum drill guide of claim 1 wherein the elongated structure is formed from polycarbonate material. ### Claim 14 (depends on 1) The vacuum drill guide of claim 1 wherein the vacuum filter comprises: a vacuum filter body; and a layer of filter media disposed over the hollow filter body. ### Claim 15 (depends on 14) The vacuum drill guide of claim 14 wherein the filter media comprises a layer of permeable membrane disposed over the hollow filter body. ### Claim 16 (depends on 15) The vacuum drill guide of claim 15 further comprising: a layer of mesh disposed over the permeable membrane; and wherein an end of the filter body facing the first end of the elongated body being a closed end. ### Claim 17 (depends on 14) The vacuum drill guide of claim 14 wherein the vacuum filter body comprises an end of the vacuum hose fitting having radial apertures that is inserted into the chip recovery chamber. ### Claim 18 (depends on 14) The vacuum drill guide of claim 14 wherein the filter body comprises an end of the vacuum hose fitting inserted into the chip recovery chamber.