# US 11,896,500 B2 · Bone preparation apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,500 B2 - Document ID: US11896500B2 - Status: Granted - Kind: B2 - Application number: 17/588,793 - Filed: 2022-01-31 - Published: 2022-08-11 - Granted: 2024-02-13 - Earliest claimed: 2016-01-11 - Applicants: Kambiz Behzadi - Inventors: Kambiz Behzadi - Web page: https://patentgrep.com/patent/US11896500B2 ## CPC - A61B 90/13: guided by light, e.g. laser pointers - A61F 2/4607: {of hip femoral endoprostheses} - A61B 17/142: {with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades} - A61B 17/1628: {Motors; Power supplies} - A61F 2/4609: {of acetabular cups} - A61F 2/461: {of knees} - A61B 17/1615: {Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material} - A61B 17/164: {intramedullary} - A61B 17/1659: {Surgical rasps, files, planes, or scrapers} - A61B 17/1666: {for the acetabulum} - A61B 17/1668: {for the upper femur (A61B17/164 takes precedence)} - A61B 17/320068: {using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745)} - A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis - A61B 2017/00119: {alarm; indicating an abnormal situation} - A61B 2090/376: {using X-rays, e.g. fluoroscopy} - A61F 2002/4632: {using computer-controlled surgery, e.g. robotic surgery} - A61F 2002/4683: {by applying ultrasonic vibrations} - 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 system and method for improving installation of a prosthesis which may include assembly of a modular prosthesis. Devices include prosthesis installation tools, prosthesis assembly tools, site preparation systems, and improved power tools used in implant site preparation, the tools including a secondary motion that preferably includes an ultrasonic vibration. ## Claims ### Claim 1 A method for fitting an implant into a prepared hole, comprising: producing, using a motivator system, a set of primary force components and a set of secondary force components; coupling a force transfer system to the implant and to said motivator, said force transfer system including a longitudinal axis extending from said motivator to the implant, a first lateral axis, perpendicular to said longitudinal axis, and a second lateral axis perpendicular to said longitudinal axis and to said first lateral axis; receiving said force components by said force transfer system to produce a set of transfer force components; and superimposing and applying said transfer force components to the implant producing an applied set of transfer force components, with said applied set of transfer force components including a combinatorial set of superimposed force components communicated to the implant; wherein said set of primary force components includes a first primary non-ultrasonic force component operable in any of one to six degrees of freedom with respect to said axes and combinations thereof; and wherein said set of second force components includes a first secondary ultrasonic force component operable in any of one to six degrees of freedom with respect to said axes and combinations thereof. ### Claim 2 (depends on 1) The method of claim 1 wherein said first primary non-ultrasonic force component is directed generally parallel to said longitudinal axes and wherein said first secondary ultrasonic force component is directed generally parallel to said longitudinal axes. ### Claim 3 (depends on 1) The method of claim 1 wherein said first primary non-ultrasonic force component is directed rotationally about said longitudinal axis and wherein said first secondary ultrasonic force component is directed longitudinally. ### Claim 4 (depends on 2) The method of claim 2 wherein said set of primary force components includes a second primary non-ultrasonic force component directed rotationally about said longitudinal axis. ### Claim 5 (depends on 1) The method of claim 1 wherein the prepared hole includes a cavity in a portion of bone. ### Claim 6 (depends on 1) The method of claim 1 wherein the prepared hole includes a cavity in a component of a modular prosthesis. ### Claim 7 (depends on 1) The method of claim 1 wherein said first primary non-ultrasonic force component is directed generally parallel to said longitudinal axis and wherein said first secondary ultrasonic force component is directed generally, in parallel to or rotationally about, one of said axes of said set of orthogonal axes. ### Claim 8 (depends on 7) The method of claim 7 wherein said set of primary force components includes a second primary non-ultrasonic force component directed generally relative to a second particular axis different from a generally parallel direction parallel to said longitudinal axis. ### Claim 9 (depends on 1) The method of claim 1 wherein said first primary non-ultrasonic force component is directed generally parallel to a first one of said lateral axes and wherein said first secondary ultrasonic force component is directed generally, in parallel to or rotationally about, one of said axes of said set of orthogonal axes. ### Claim 10 (depends on 9) The method of claim 9 wherein said set of primary force components includes a second primary non-ultrasonic force component directed generally relative to a second particular axis different from a generally parallel direction parallel to one of said lateral axes of said first primary non-ultrasonic force component. ### Claim 11 A method for fitting an implant into a prepared hole, comprising: producing, using a motivator system, a set of primary force components and a set of secondary force components; coupling a force transfer system to the implant and to said motivator, said force transfer system including a set of orthogonal axes including a longitudinal axis extending from said motivator to the implant, a first lateral axis, perpendicular to said longitudinal axis, and a second lateral axis perpendicular to said longitudinal axis and to said first lateral axis; receiving and superimposing said force components by said force transfer system to produce a set of superimposed transfer force components producing an applied set of superimposed transfer force components, with said applied set of superimposed transfer force components including a combinatorial set of superimposed force components communicated to the implant; wherein said combinatorial set of superimposed force components include a force direction generally parallel to one or more of said axes, a force direction generally circularly around one or more of said axes, and combinations thereof collectively including one to six degrees of freedom of translation and rotation motion with respect to said set of orthogonal axes; wherein said set of primary force components includes a first primary non-ultrasonic force component; and wherein said set of second force components includes a first secondary ultrasonic force component. ### Claim 12 (depends on 11) The method of claim 11 wherein said first primary non-ultrasonic force component includes a first particular force direction relative to a first particular set of axes and wherein said set of primary force components includes a second primary non-ultrasonic force component including a second particular force direction relative to second particular set of axes. ### Claim 13 (depends on 11) The method of claim 11 wherein said first secondary ultrasonic force component includes a first particular force direction relative to a first particular set of axes and wherein said set of secondary force components includes a second secondary ultrasonic force component including a second particular force direction relative to second particular set of axes, said second particular force direction different from said first particular force direction. ### Claim 14 (depends on 12) The method of claim 12 wherein said first secondary ultrasonic force component includes a third particular force direction relative to a third particular set of axes and wherein said set of secondary force components includes a second secondary ultrasonic force component including a fourth particular force direction relative to fourth particular set of axes, said fourth particular force direction different from said third particular force direction. ### Claim 15 (depends on 12) The method of claim 12 wherein said first particular force direction matches said second particular force direction. ### Claim 16 (depends on 12) The method of claim 12 wherein said first particular force direction does not match said second particular force direction. ### Claim 17 (depends on 11) The method of claim 11 wherein said set of primary force components includes a first primary force component and a second primary force component and further includes a first secondary force component, wherein said second primary force component is directed to a set of axes different from a set of axes associated with said first primary force component. ### Claim 18 (depends on 17) The method of claim 17 wherein a set of axes associated with said first secondary force component matches one of said sets of axes associated with one of said primary force components. ### Claim 19 (depends on 17) The method of claim 17 wherein a set of axes associated with said first secondary force component does not match any one of said sets of axes associated with one of said primary force components.