Invasive sense measurement in prosthesis installation
OwnerKambiz Behzadiinventor
Life of this patent
Estimating the term…
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. Force sensing is included to aid in quantifying installation of an implant, particularly a cup into a pelvic bone.
Claims11
An apparatus for an insertion of a prosthesis into a prepared cavity in a portion of bone, the prosthesis having a prosthesis profile, the prepared cavity having a cavity profile with the cavity profile configured, responsive to the prosthesis profile, to retain the prosthesis within the prepared cavity using a press fit fixation, comprising:
- an insertion device providing an insertion agency to the prosthesis, said insertion agency operating over a period including an initial prosthesis insertion act with said insertion device to a subsequent prosthesis insertion act with said insertion device;
- and
- a sensing system physically coupled to said insertion device configured to provide a parametric evaluation of an extractive force of an interface between the prosthesis and the cavity during said period;
- wherein an applied force having a first magnitude is applied to said insertion device for inserting the prosthesis into the prepared cavity, further comprising:
- a device sensor configured to measure a magnitude of a measured impact force within said insertion device responsive to an application of said applied force to said insertion device;
- wherein said parametric evaluation includes a comparison of said measured impact force to said applied force.
An apparatus for an insertion of a prosthesis into a prepared cavity in a portion of bone, the prosthesis having a prosthesis profile, the prepared cavity having a cavity profile with the cavity profile configured, responsive to the prosthesis profile, to retain the prosthesis within the prepared cavity using a press fit fixation, comprising:
- an insertion device providing an insertion agency to the prosthesis, said insertion agency operating over a period including an initial prosthesis insertion act with said insertion device to a subsequent prosthesis insertion act with said insertion device;
- and
- a sensing system physically coupled to said insertion device configured to provide a parametric evaluation of an extractive force of an interface between the prosthesis and the cavity during said period;
- wherein an applied force having a first magnitude is applied to said insertion device for inserting the prosthesis into the prepared cavity, further comprising:
- a device sensor configured to measure a magnitude of a measured impact force within said insertion device responsive to an application of said applied force to said insertion device;
- wherein said parametric evaluation includes a series of comparisons of said measured impact force to said applied force responsive to a series of impacts from said applied force.
An apparatus for an insertion of a prosthesis into a prepared cavity in a portion of bone, the prosthesis having a prosthesis profile, the prepared cavity having a cavity profile with the cavity profile configured, responsive to the prosthesis profile, to retain the prosthesis within the prepared cavity using a press fit fixation, comprising:
- an insertion device providing an insertion agency to the prosthesis, said insertion agency operating over a period including an initial prosthesis insertion act with said insertion device to a subsequent prosthesis insertion act with said insertion device;
- and
- a sensing system physically coupled to said insertion device configured to provide a parametric evaluation of an extractive force of an interface between the prosthesis and the cavity during said period;
- wherein said parametric evaluation of said extractive force includes a response of the prosthesis within the prepared cavity to said insertion agency;
- wherein said insertion agency includes an applied force directed to the prosthesis;
- and
- wherein said response includes a force response of the prosthesis within the prepared cavity further comprising:
- a first sensor configured to quantize said applied force to establish a first quantized force;
- a second sensor configured to quantize said force response to establish a second quantized force;
- and
- a system control, coupled to said sensors, comparing said quantized forces in determining said parametric evaluation of said extractive force.
Dependencies are inferred from the claim text.