Inductively coupled RF tracking system for use in invasive imagi

Details Inductively coupled RF tracking system for use in invasive imagi Inductively coupled RF tracking system for use in invasive imagi

1994-02-14

1995-08-01

Pfaffle, Krista M.

Surgery

Truss

Pad

128899, 439909, 607154, A61B 1900, A61B 1902

Patent

active

054372771

ABSTRACT:
RF tracking system employs a RF invasive device coupled to surgical tracking equipment for tracking the invasive device. An inductive coupling permits the device to be quickly coupled to, and decoupled from, the equipment. The coupling comprises an inducting coil which transmits a signal from the surgical tracking equipment to a communicating coil in the invasive device. The signal received by the communicating coil passes along leads to a tracked coil in a distal end of the invasive device. The tracked coil transmits the signal as RF energy which is received by the surgical tracking equipment which superimposes the position of the distal end of the invasive device on an X-ray image and displays it on a monitor A sterile shield is employed as a sterile barrier between the inducting coil and the equipment end of the invasive device to prevent contamination of the invasive device by the inducting coil. The cross-section of the invasive device at its equipment end can be made identical to the rest of the invasive device to permit other invasive devices to pass completely over the invasive device.

REFERENCES:
patent: 4173228 (1979-11-01), Van Steenwyk et al.
patent: 5005592 (1991-04-01), Cartmell
patent: 5042486 (1991-08-01), Pfeiler et al.
patent: 5099845 (1992-03-01), Besz et al.
patent: 5271400 (1993-12-01), Dumoulin et al.
patent: 5307808 (1994-05-01), Dumoulin et al.
patent: 5318025 (1994-06-01), Dumoulin et al.

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