Method and apparatus for aligning and securing an implant relative to a patient
First Claim
1. A surgical instrument for implanting a primary prosthetic member in an anatomical feature based on information gained using a trial prosthetic member, the trial prosthetic member substantially corresponding in size and structure to the primary prosthetic member, the surgical instrument comprising:
- an orientation sensor that detects a trial orientation of the trial prosthetic member, the orientation sensor also operable to detect an actual orientation of the primary prosthetic member;
a memory module;
an input device that receives a user input to transfer the trial orientation of the trial prosthetic member detected by the orientation sensor into the memory module for storage when the trial orientation corresponds to a target orientation necessary for moving and implanting the primary prosthetic member into engagement with the anatomical feature;
an orientation feedback device that selectively provides an orientation feedback signal to a user; and
a controller that causes the orientation feedback device to provide the orientation feedback signal when the actual orientation of the primary prosthetic member detected by the orientation sensor is substantially equal to the trial orientation stored in the memory module.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument for implanting a prosthetic member. The instrument includes an orientation sensor that detects an initial orientation of the prosthetic member and an implanting orientation of the prosthetic member. The instrument further includes a memory module and an input device that receives a user input to transfer the initial orientation detected by the orientation sensor into the memory module for storage. Furthermore, the instrument includes an orientation feedback device that selectively provides an orientation feedback signal to a user. Moreover, the instrument includes a controller that causes the orientation feedback device to provide the orientation feedback signal when the implanting orientation detected by the orientation sensor is substantially equal to the initial orientation stored in the memory module.
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Citations
22 Claims
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1. A surgical instrument for implanting a primary prosthetic member in an anatomical feature based on information gained using a trial prosthetic member, the trial prosthetic member substantially corresponding in size and structure to the primary prosthetic member, the surgical instrument comprising:
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an orientation sensor that detects a trial orientation of the trial prosthetic member, the orientation sensor also operable to detect an actual orientation of the primary prosthetic member; a memory module; an input device that receives a user input to transfer the trial orientation of the trial prosthetic member detected by the orientation sensor into the memory module for storage when the trial orientation corresponds to a target orientation necessary for moving and implanting the primary prosthetic member into engagement with the anatomical feature; an orientation feedback device that selectively provides an orientation feedback signal to a user; and a controller that causes the orientation feedback device to provide the orientation feedback signal when the actual orientation of the primary prosthetic member detected by the orientation sensor is substantially equal to the trial orientation stored in the memory module. - View Dependent Claims (10, 11, 21)
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2. A surgical instrument for implanting a primary prosthetic member in an anatomical feature based on information gained using a trial prosthetic member, the trial prosthetic member substantially corresponding in size and structure to the primary prosthetic member, the surgical instrument comprising:
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an orientation sensor that detects an initial orientation of the trial prosthetic member when the trial prosthetic member is oriented as desired relative to the anatomical feature, the orientation sensor also operable to detect an implanting orientation of the primary prosthetic member; a memory module; an input device that receives a user input to transfer the initial orientation of the trial prosthetic member detected by the orientation sensor into the memory module for storage; an orientation feedback device that selectively provides an orientation feedback signal to a user; a controller that causes the orientation feedback device to provide the orientation feedback signal when the implanting orientation of the primary prosthetic member detected by the orientation sensor is substantially equal to the initial orientation stored in the memory module; and a housing that houses the orientation sensor, the housing being removably coupled relative to one of the trial prosthetic member and the primary prosthetic member to position a housing axis of the housing at a known orientation relative to a prosthesis axis of the one of the trial prosthetic member and the primary prosthetic member. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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12. A method of implanting a primary prosthetic member in an anatomical feature based on information gained from a trial prosthetic member that substantially corresponds in size and structure to the primary prosthetic member, the method comprising:
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detecting a trial orientation of the trial prosthetic member; saving the trial orientation into a memory module when the trial orientation corresponds to a target orientation necessary for moving and implanting the primary prosthetic member into engagement with the anatomical feature as a result of receiving a user input; detecting an actual orientation of the primary prosthetic member; and providing an orientation feedback signal when the actual orientation of the primary prosthetic member is substantially equal to the trial orientation saved in the memory module. - View Dependent Claims (17, 18, 22)
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13. A method of implanting a primary prosthetic member in an anatomical feature based on information gained from a trial prosthetic member that substantially corresponds in size and structure to the primary prosthetic member, the method comprising:
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detecting an initial orientation of the trial prosthetic member when the trial prosthetic member is oriented as desired relative to the anatomical feature; saving the initial orientation into a memory module as a result of receiving a user input; detecting an implanting orientation of the primary prosthetic member; and providing an orientation feedback signal when the implanting orientation of the primary prosthetic member is substantially equal to the initial orientation; wherein detecting the initial orientation of the trial prosthetic member comprises removably coupling a prosthesis implanting apparatus with an orientation sensor to the trial prosthetic member and detecting the initial orientation of the trial prosthetic member with the orientation sensor, and wherein detecting the implanting orientation comprises removably coupling the prosthesis implanting apparatus to the primary prosthetic member and detecting the implanting orientation of the primary prosthetic member with the orientation sensor. - View Dependent Claims (14, 15, 16)
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19. A prosthesis implantation system comprising:
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a trial prosthetic acetabular cup defining a trial axis; a primary prosthetic acetabular cup defining a primary axis, the primary prosthetic acetabular cup substantially corresponding in size and structure to the trial prosthetic acetabular cup; an impactor tool that removably couples to the primary prosthetic acetabular cup and transfers a load along a load axis to implant the primary prosthetic acetabular cup; and a prosthesis implanting apparatus that includes; a housing operable to be removably coupled to the trial prosthetic acetabular cup, the housing operable to be alternatively and removably coupled to the impactor tool; an orientation sensor that detects an initial orientation of the trial axis when the housing is removably coupled to the trial prosthetic acetabular cup and an implanting orientation of the primary axis when the housing is removably coupled to the impactor tool; a memory module; an input device that receives a user input to transfer the initial orientation of the trial axis detected by the orientation sensor into the memory module for storage; an orientation feedback device that selectively provides an orientation feedback signal; and a controller that causes the orientation feedback device to provide the orientation feedback signal when the housing is coupled to the impactor tool and when the implanting orientation of the primary axis is substantially equal to the initial orientation of the trial axis stored in the memory module.
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20. A method of implanting a primary prosthetic acetabular cup in an acetabulum based on information gained from a trial prosthetic acetabular cup that substantially corresponds in size and structure to the primary prosthetic acetabular cup, the method comprising:
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removably coupling a prosthesis implanting apparatus with an orientation sensor to the trial prosthetic acetabular cup; detecting an initial orientation of the trial prosthetic acetabular cup with the orientation sensor when the trial prosthetic member is oriented as desired relative to the acetabulum; saving the initial orientation of the trial prosthetic member into a memory module as a result of receiving a user input; removing the prosthesis implanting apparatus from the trial prosthetic acetabular cup; removably coupling an impactor tool to the primary prosthetic acetabular cup; removably coupling the prosthesis implanting apparatus to the impactor tool; detecting an implanting orientation of the primary prosthetic acetabular cup with the orientation sensor when the prosthesis implanting apparatus is removably coupled to the impactor tool and the impactor tool is removably coupled to the primary prosthetic acetabular cup; providing an orientation feedback signal when the implanting orientation of the primary prosthetic acetabular cup is substantially equal to the initial orientation of the trial prosthetic member; and implanting the primary prosthetic acetabular cup at the initial orientation.
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Specification