Laser Focused Ablation Apparatus and Method of Use in Revision Arthroplasty
OwnerBertram Ezenwa, Robert Limoniinventors
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Abstract
The present invention provides and a laser focused ablation apparatus and method of use configured to ablate a cement mantle surrounding a stem of a hip prosthesis, for use during a revision arthroplasty. The apparatus comprises a laser generation system generating a laser light and a handpiece to receive the laser light. The handpiece includes an elongated main conduit terminating at a laser emission tip, the laser emission tip providing a tip and a curvature disposed between the tip and the elongated main conduit such that the laser light exits the tip at a direction oblique to a longitudinal axis of the elongated main conduit.
Claims20
A laser ablation apparatus adapted to ablate a cement mantle surrounding a stem of a hip prosthesis;
- the apparatus comprising:
- a laser generation system providing a laser light;
- a handpiece operatively connected to the laser generation system to receive the laser light, the handpiece providing:
- a hand grip adapt for grasping by the human hand;
- an elongated main conduit extending from the hand grip to receive and conduct the laser light therealong, the elongated main conduit,
- a laser emission tip at an end of the elongated main channel receiving the laser light therefrom to direct the laser light from the laser emission tip in a direction oblique to the axis of the elongated main conduit,
- the laser light having an ablation power of greater than 40 Watts and less than 100 Watts.
A method of ablating a cement mantle surrounding a hip prosthesis stem located within the femur of a patient;
- the method providing the steps of:
- surgically dissecting the femur of a patient to gain access to a femoral head of the femur;
- revealing the hip prosthesis located within the femur;
- locating the cement mantle disposed at a outer circumference of the hip prosthesis stem, between an exterior surface of the hip prosthesis stem and a cancellous tissue;
- positioning a tip of a laser focused ablation apparatus in contact with the cement mantle, the tip further comprising a tip oriented to direct a laser ablation path towards the exterior surface of the hip prosthesis stem;
- activating the laser focused ablation apparatus to emit a laser ablation path and ablate the cement mantle;
- moving the tip of a laser focused ablation apparatus about the outer circumference of the hip prosthesis stem;
- and
- removing the hip prosthesis stem from the femur of a patient.
Dependencies are inferred from the claim text.