Prosthesis installation systems and methods

Abstract

A system and method for allowing any surgeon, including those surgeons who perform a fewer number of a replacement procedure as compared to a more experienced surgeon who performs a greater number of procedures, to provide an improved likelihood of a favorable outcome approaching, if not exceeding, a likelihood of a favorable outcome as performed by a very experienced surgeon with the replacement procedure.

What is claimed as new and desired to be protected by Letters Patent of the United States is: 
     
         1 . An installation device for an acetabular cup disposed in a pelvic bone, the acetabular cup including an outer shell having a sidewall defining an inner cavity and an opening with the sidewall having a periphery around the opening and with the acetabular cup having a desired installation depth relative to the bone, a desired abduction angle relative to the bone, and a desired anteversion angle relative to the bone, comprising:
 a controller including a trigger;   a support having a proximal end and a distal end opposite of said proximal end, said support further having a longitudinal axis extending from said proximal end to said distal end with said proximal end coupled to said controller, said support further having an adapter coupled to said distal end with said adapter configured to secure the acetabular cup; and   an oscillator coupled to said controller and to said support, said oscillator configured to control a series of vibratory pulses having an oscillation frequency and an oscillation magnitude of said support with said oscillation frequency and said oscillation magnitude configured to install the acetabular cup at the installation depth with the desired abduction angle and the desired anteversion angle responsive to said series of vibratory pulses.   
     
     
         2 . The installation device of  claim 1  wherein said support includes one to six degrees of freedom relative to an X-axis, a Y-axis, and a Z-axis, and wherein said oscillation magnitude includes one or more oscillation directions selected from the group consisting of a translation direction, a rotation direction, an X-axis translation direction, a Y-axis translation, a Z-axis translation, a pitch direction about said X-axis, a yaw direction about said Y-axis, a roll direction about said Z-axis, and combinations thereof. 
     
     
         3 . The installation device of  claim 1  wherein said series of vibratory pulses includes a vibratory motion having a frequency greater than or equal to about 20 kHz. 
     
     
         4 . An installation system for a prosthesis configured to be installed into a portion of bone at a desired installation depth, the prosthesis including an attachment system, comprising:
 an oscillation engine including a controller coupled to a vibratory machine generating an original series of pulses having a generation pattern, said generation pattern defining a first duty cycle of said original series of pulses; and   a pulse transfer assembly having a proximal end coupled to said oscillation engine and a distal end, spaced from said proximal end, coupled to the prosthesis with said pulse transfer assembly including a connector system at said proximal end, said connector system complementary to the attachment system and configured to secure and rigidly hold the prosthesis producing a secured prosthesis with said pulse transfer assembly communicating an installation series of pulses, responsive to said original series of pulses, to said secured prosthesis producing an applied series of ultrasonic pulses responsive to said installation series of pulses;   wherein said applied series of ultrasonic pulses are configured to impart a vibratory motion to said secured prosthesis enabling an installation of said secured prosthesis into the portion of bone to within 95% of the desired implantation depth.   
     
     
         5 . The installation system of  claim 4  wherein said pulse transfer assembly receives said original series of pulses from said oscillation engine and produces, responsive to said original series of pulses, an installation series of pulses having an installation pattern, said installation pattern defining a second duty cycle of said installation series of pulses including a second pulse amplitude, a second pulse direction, a second pulse duration, and a second pulse time window with said pulse transfer assembly communicating said installation series of pulses to said secured prosthesis producing said applied series of ultrasonic pulses responsive to said installation series of pulses. 
     
     
         6 . The installation system of  claim 4  wherein said pulse transfer assembly includes a body and an elongate vibration assembly having a proximal end and a distal end opposite of said proximal end, said proximal disposed within said body and coupled to said oscillation engine with said distal end extending outside said body and including said connector system;
 said elongate vibration assembly configured to move relative to said body and having one or more degrees of freedom. 
 
     
     
         7 . The installation system of  claim 5  wherein said pulse transfer assembly includes a body and an elongate vibration assembly having a proximal end and a distal end opposite of said proximal end, said proximal disposed within said body and coupled to said oscillation engine with said distal end extending outside said body and including said connector system;
 said elongate vibration assembly configured to move relative to said body and having one or more degrees of freedom. 
 
     
     
         8 . A method for installing an acetabular cup into a prepared socket in a pelvic bone, the acetabular cup including an outer shell having a sidewall defining an inner cavity and an opening with the sidewall having a periphery around the opening and with the acetabular cup having a desired installation depth relative to the bone, a desired abduction angle relative to the bone, and a desired anteversion angle relative to the bone, comprising:
 (a) generating an original series of pulses from an oscillation engine;   (b) communicating said original series of pulses to the acetabular cup producing a communicated series of pulses at said acetabular cup;   (c) vibrating, responsive to said communicated series of pulses, the acetabular cup to produce a vibrating acetabular cup having a predetermined vibration pattern; and   (d) inserting the vibrating acetabular cup into the prepared socket within a first predefined threshold of the installation depth with the desired abduction angle and the desired anteversion angle.   
     
     
         9 . The method of  claim 8  further comprising:
 (e) orienting the vibrating acetabular cup within the prepared socket within a second predetermined threshold of the desired abduction angle and within third predetermined threshold of the desired anteversion angle. 
 
     
     
         10 . A method for inserting an implant into a prepared location in a live bone of a patient at a desired insertion depth wherein non-vibratory insertion forces for inserting the prosthesis to the desired insertion depth are in a first range, the method comprising:
 (a) vibrating the implant using a tool to produce a vibrating implant having a predetermined vibration pattern including an oscillation; and   (b) inserting the vibrating implant into the prepared location to within a first predetermined threshold of the desired insertion depth using vibratory insertion forces in a second range, said second range including a set of values less than a lowest value of the first range.   
     
     
         11 . The method of  claim 10  wherein said second range is less than first range. 
     
     
         12 . The method of  claim 10  wherein the implant includes a desired orientation relative to the bone, further comprising:
 (c) orienting the vibrating implant to within a second predetermined threshold of the desired orientation using the tool. 
 
     
     
         13 . The method of  claim 10  wherein said inserting step (b) includes:
 (b1) determining automatically, using an automated depth determining tool, a current insertion depth of said vibrating prosthesis; and 
 (b2) increasing automatically, using an intraoperative robotic tool, said current insertion depth until said current depth is within said first predetermined threshold. 
 
     
     
         14 . The method of  claim 12  wherein said inserting step (b) includes:
 (b1) determining automatically, using an automated depth determining tool, a current insertion depth of said vibrating implant; and 
 (b2) increasing automatically, using an intraoperative robotic tool, said current insertion depth until said current depth is within said first predetermined threshold. 
 
     
     
         15 . The method of  claim 12  wherein said orienting step (c) includes:
 (c1) determining automatically, using an automated orientation determining tool, a current insertion orientation of said vibrating implant; and 
 (c2) adjusting automatically, using an intraoperative robotic tool, said current insertion orientation until said current insertion orientation is within said second predetermined threshold. 
 
     
     
         16 . The method of  claim 15  wherein said orienting step (c) includes:
 (c1) determining automatically, using an automated orientation determining tool, a current insertion orientation of said vibrating implant; and 
 (c2) adjusting automatically, using an intraoperative robotic tool, said current insertion orientation until said current insertion orientation is within said second predetermined threshold. 
 
     
     
         17 . The method of  claim 16  wherein the implant includes an acetabular cup prosthesis. 
     
     
         18 . The method of  claim 10  wherein said vibrating implants includes a vibration having an ultrasonic oscillation. 
     
     
         19 . An apparatus for inserting an implant into a prepared location in a live bone of a patient at a desired insertion depth wherein non-vibratory insertion forces for inserting the prosthesis to the desired insertion depth are in a first range, the method comprising:
 means for vibrating the implant to produce a vibrating implant having a predetermined vibration pattern including an oscillation; and   means for inserting the vibrating implant into the prepared location to within a first predetermined threshold of the desired insertion depth using vibratory insertion forces in a second range, said second range including a set of values less than a lowest value of the first range.