초록 ▼

A system for removing osteal cement and prosthetic joint components in connection with a prosthetic joint revision includes a controller connected to and controlling operation of a transducer, such as a surgical saw or drill. A tool mounted on the transducer is adapted for engaging the prosthetic jo

A system for removing osteal cement and prosthetic joint components in connection with a prosthetic joint revision includes a controller connected to and controlling operation of a transducer, such as a surgical saw or drill. A tool mounted on the transducer is adapted for engaging the prosthetic joint cement mantel and melting an engagement portion of same. The cement in the engagement portion is resolidified with the tool tip embedded therein. The tool thus bonds to the cement mantel, and is used for vibrating, softening and breaking up same when operation of the transducer resumes. An osteal cement and prosthetic device removal method includes the steps of melting an engagement portion of the osteal cement mantel, bonding a transducer-mounted tool to the cement mantel by resolidifying the cement engagement portion and reactivating the transducer for vibrating, softening and breaking up the cement mantel whereby it can be removed from the patient.

대표청구항 ▼

The invention claimed is: 1. A system for installing or extracting orthopedic or dental implants or cement from the bone structure of a patient, which system comprises: a controller including an input adapted for receiving input signals and an output; an input device adapted for providing an input

The invention claimed is: 1. A system for installing or extracting orthopedic or dental implants or cement from the bone structure of a patient, which system comprises: a controller including an input adapted for receiving input signals and an output; an input device adapted for providing an input signal to said controller; a transducer connected to said controller output and adapted for providing a repeating, variable motion in response to an output signal from said controller; a tool connected to said transducer and adapted for fixedly engaging said implant or said cement; said controller automatically varying said output therefrom in response to inputs thereto from said input device, said controller inputs from said input device being automatically adjusted corresponding to operating conditions of said system associated with said implant or said cement; and said transducer and said tool being adapted for vibrating and installing or dislodging said implant or said cement from said patient bone structure. 2. The system according to claim 1, which includes: said transducer having variable direction, frequency and amplitude, which are variably controlled by said controller. 3. The system according to claim 1, which includes: a sensor adapted for connection to a patient and/or said transducer, said sensor being adapted to detect a condition associated with said patient and/or said transducer; said sensor being connected to said controller input and providing said input signals thereat; and said controller being adapted to automatically vary the operating parameters of said transducer in response to controller input signals from said sensor. 4. The system according to claim 1 wherein said controller is adapted for automatically varying the frequency and amplitude of said transducer and is further adapted for adapted for locking in an optimum frequency and amplitude for installing or extracting said implant or said cement.