Method and apparatus for aligning and securing an implant relative to a patient
First Claim
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1. A surgical apparatus comprising:
- an impactor tool having an elongated shaft defining a load axis, a head at a first end, and a second end configured to removably couple to a prosthetic;
an orientation sensor configured to detect an actual orientation of the impactor tool;
an orientation feedback device configured to selectively provide an orientation feedback signal;
a controller configured to cause the orientation feedback device to provide the orientation feedback signal when the actual orientation of the impactor tool detected by the orientation sensor is substantially equal to a predetermined target orientation of the impactor tool associated with a desired implanted orientation of the prosthetic relative to the patient'"'"'s anatomy;
an impact sensor configured to detect an actual effect of impacting the impactor tool; and
an impact feedback device configured to selectively provide an impact feedback signal;
wherein the controller is configured to cause the impact feedback device to provide the impact feedback signal when the actual effect of impacting the impactor tool detected by the impact sensor substantially meets or exceeds a target effect.
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Abstract
A surgical apparatus includes an orientation sensor that detects an actual orientation of a surgical tool. The apparatus also includes a tactile orientation feedback device that selectively provides a tactile orientation feedback signal. Moreover, the apparatus includes a controller that causes the tactile orientation feedback device to provide the tactile orientation feedback signal when the actual orientation of the surgical tool detected by the orientation sensor is substantially equal to a predetermined target orientation of the surgical tool.
160 Citations
21 Claims
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1. A surgical apparatus comprising:
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an impactor tool having an elongated shaft defining a load axis, a head at a first end, and a second end configured to removably couple to a prosthetic; an orientation sensor configured to detect an actual orientation of the impactor tool; an orientation feedback device configured to selectively provide an orientation feedback signal; a controller configured to cause the orientation feedback device to provide the orientation feedback signal when the actual orientation of the impactor tool detected by the orientation sensor is substantially equal to a predetermined target orientation of the impactor tool associated with a desired implanted orientation of the prosthetic relative to the patient'"'"'s anatomy; an impact sensor configured to detect an actual effect of impacting the impactor tool; and an impact feedback device configured to selectively provide an impact feedback signal; wherein the controller is configured to cause the impact feedback device to provide the impact feedback signal when the actual effect of impacting the impactor tool detected by the impact sensor substantially meets or exceeds a target effect. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An implanting assembly for implanting an acetabular cup of a prosthetic hip assembly in a patient, the impactor assembly comprising:
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an impactor tool having an elongated shaft defining a load axis, a head at a first end, and a coupling mechanism at a second end for removably coupling to the acetabular cup, the impactor tool configured for transferring a load from impacting the impactor tool along the load axis to the acetabular cup; and an implanting apparatus that is operatively coupled to the impactor tool, the implanting apparatus comprising; an orientation sensor that detects an actual inclination angle of the load axis relative to a median plane of the patient and that detects an actual anteversion angle of the load axis relative to a coronal plane of the patient; a tactile orientation feedback device that selectively provides a tactile orientation feedback signal; an impact sensor that detects an actual effect of impacting the impactor tool, the actual effect of impacting the impactor tool including at least one of an actual impact force of impacting the impactor tool, an actual displacement of the impactor tool when impacting the impactor tool, and an actual acoustic effect of impacting the impactor tool; a tactile impact feedback device that selectively provides a tactile impact feedback signal; and a controller that causes the tactile orientation feedback device to provide the tactile orientation feedback signal when the actual inclination angle is substantially equal to a predetermined target inclination angle and the actual anteversion angle is substantially equal to a predetermined target anteversion angle, the controller also causing the tactile impact feedback device to provide the tactile impact feedback signal when the actual effect of impacting the impactor tool detected by the impact sensor substantially matches or exceeds a predetermined target effect of impacting the impactor tool. - View Dependent Claims (21)
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Specification