# US 2019/0314043 A1 · Tool assembly including a cutting tool and cutting guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0314043 A1 - Document ID: US20190314043A1 - Status: Published application - Kind: A1 - Application number: 16/457,105 - Filed: 2019-06-28 - Published: 2019-10-17 - Earliest claimed: 2013-05-28 - Inventors: Ronald Sekel - Web page: https://patentgrep.com/patent/US20190314043A1 ## CPC - A61B 17/1637: {Hollow drills or saws producing a curved cut, e.g. cylindrical (A61B10/025, A61B17/1695 take precedence)} - A61B 17/1767: {for the patella} - A61B 17/1675: {for the knee} - A61B 17/1677: {for the patella} - A61B 17/1764: {for the knee} - A61F 2/4644: {Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material (bone material A61F2/28; disintegrating or milling devices B02C)} - A61F 2002/4649: {Bone graft or bone dowel harvest sites} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A cutting assembly for cutting a tapered cut in a hard material includes a cutting tool and a cutting guide, the cutting tool including a cutting profile shaped to enable the creation of a tapered cut in said hard material, the cutting guide co-operating with the cutting tool and including a distal end which fits a cut profile formed by the cutting tool and a cutting guide opening which guides a secondary cutter introduced therein to complete the tapered cut. ## Claims ### Claim 1 A cutting assembly for cutting a tapered cut in a hard material, the assembly comprising a cutting tool and a cutting guide, the cutting tool including a cutting profile shaped to enable the creation of a tapered cut in said hard material, the cutting guide co-operating with said cutting tool and including a distal end which fits a cut profile formed by the cutting tool and a cutting guide opening which guides a secondary cutter introduced therein to complete the tapered cut. ### Claim 2 (depends on 1) The cutting assembly according to claim 1 wherein, the cutting tool comprises a tool body having a first end which includes a profile enabling operable engagement of the cutting tool with a power tool; a second working end including an arcuate cutter having a tapered region extending distally, the working end including at least one cutting region formed by an array of cutting teeth. ### Claim 3 (depends on 2) The cutting assembly according to claim 2 wherein the cutter further comprises an arcuate wall terminating in a wall edge. ### Claim 4 (depends on 3) The cutting assembly according to claim 3 wherein the wall at a proximal end has a greater arcuate extent than an arcuate extent at the distal end of the wall. ### Claim 5 (depends on 4) A cutting assembly according to claim 4 wherein the tapered region is formed by a gradual reduction in the arcuate extent of the wall about a longitudinal axis of the cutter from the proximal to the distal end of the wall. ### Claim 6 (depends on 5) The cutting assembly according to claim 5 wherein the cutting edge is continuous along the full extent of the wall edge. ### Claim 7 (depends on 6) The cutting assembly according to claim 6 wherein the cutting edge has cutting teeth extending along the full extent of the wall edge. ### Claim 8 (depends on 8) The cutting assembly according to claim 8 wherein cutting is enabled by reciprocating rotation of the working end. ### Claim 9 (depends on 8) The cutting assembly according to claim 8 wherein the cutting edge of the cutter comprises laterally spaced apart edges inclined from the distal end to the proximal end and each joined at a distal end by a transverse leading end cutting edge. ### Claim 10 (depends on 9) The cutting assembly according to claim 9 wherein the first end enabling engagement with a power tool comprises a member which engages and is retained by a drill chuck. ### Claim 11 (depends on 10) The cutting assembly according to claim 10 wherein the hard material is bone. ### Claim 12 (depends on 11) The cutting assembly according to claim 11 wherein the cutting guide comprises: a guide body having a proximal end and distal end, the distal end including an arcuate wall having a tapered region extending distally and shaped to enter and fit a first cut formed by said cutting tool, the proximal end of the guide having a guide opening which receives and guides a secondary cutter to complete the first cut. ### Claim 13 (depends on 12) The cutting assembly according to claim 12 wherein the guide opening comprises a slot which receives a flat bladed cutting blade. ### Claim 14 A cutting tool for a cutting assembly comprising the tool and a cutting guide, the cutting tool enabling creation of a tapered cut in a hard material, the tool comprising a tool body having a first end which includes a profile enabling operable engagement of the cutting tool with a power tool; a second working end including an arcuate cutter having a tapered region extending distally, the working end including at least one cutting region formed by an array of cutting teeth. ### Claim 15 A cutting guide for a cutting assembly comprising a cutting tool and the cutting guide, the cutting tool enabling creation of a tapered cut in a hard material, the tool comprising a tool body having a first end which includes a profile enabling operable engagement of the cutting tool with a power tool; a second working end including an arcuate cutter having a tapered region extending distally, the working end including at least one cutting region formed by an array of cutting teeth; the cutting guide comprising a guide body having a proximal end and distal end, the distal end including an arcuate wall having a tapered region extending distally and shaped to enter and fit a first cut formed by said cutting tool, the proximal end of the guide having a guide opening which receives and guides a secondary cutter to complete the first cut. ### Claim 16 (depends on 15) The cutting guide assembly according to claim 15 wherein the hard material is bone. ### Claim 17 An assembly for enabling a tapered cut in bone, the assembly comprising a cutting tool having a first end which engages a powered activation tool and a second curved tapered end which includes a cutting edge profile capable of creating the tapered cut in bone; a guide which co-operates with the cutting tool and insertable into a first cut made by the cutting tool; the guide including an opening which receives and guides a second cutting implement which makes a secondary cut in the bone, the first and second cuts creating a tapered bone portion releasable from the surrounding bone. ### Claim 18 (depends on 17) The assembly according to claim 17 wherein the cutting guide comprises a curved tapered body and at one end an opening which receives extending therethrough a second cutting blade which completes the tapered cut formed by the cutting tool. ### Claim 19 (depends on 18) The assembly according to claim 18 wherein the powered activation tool causes the cutting tool to reciprocate rotationally during cutting. ### Claim 20 (depends on 19) The assembly according to claim 19 wherein the tapered cut in bone is free to move relative to the surrounding bone in a passage in said bone created by the cutting tool and cutter using the cutting guide. ### Claim 21 (depends on 20) The assembly according to claim 20 wherein the tapered cut in bone is trapezoidal. ### Claim 22 An assembly for use in a ligament reconstruction procedure after rupture of the ligament, the assembly comprising: a jig capable of measurement of a length of a tibial bone section measured from a distal entry point to the tibia to a proximal location at which the length of bone is capable of separation form the tibia; a guide wire for insertion axially through the bone section such that an entry point in the bone section aligns with a ruptured anterior cruciate ligament; a bone cutting guide which has a first end which in use engages a tibial bone surface to be cut and a body which allows the bone section after cutting by the bone cutting element to be wider at a distal end than at a proximal end. ### Claim 23 (depends on 22) The assembly according to claim 22 wherein the bone cutting tool and guide enable creation of a trapezoidal profile shape of a bone section which allows the bone section when cut to advance a predetermined distance proximally relative to surrounding bone.