초록 ▼

An apparatus for locating and mapping a catheter in a heart invasive operation, includes a permanent magnet with a north pole face, a permanent magnet with a south pole face, a frame for positioning the magnets on opposite sides of a person's body; first and second motors for revolving the permanent

An apparatus for locating and mapping a catheter in a heart invasive operation, includes a permanent magnet with a north pole face, a permanent magnet with a south pole face, a frame for positioning the magnets on opposite sides of a person's body; first and second motors for revolving the permanent magnets in synchronism and in alignment with each other to create a directional magnetic field that revolves 360 degrees through the person's heart; a catheter for insertion into the heart, the catheter including a first sensor group of three mutually orthogonal sensors at the tip thereof and a second sensor group of three mutually orthogonal sensors in axially spaced relation to the first sensor group, each for detecting the relative strength of the revolving magnetic field; a magnetic field position detector which detects the angular position and speed of movement of the directional magnetic field; a plurality of electrodes spaced along an outer wall thereof for detecting electric signals which run along a wall of the heart; an ablation member at a tip of the catheter for burning out a wall of the heart; and a central processing unit for determining a location of the catheter position in relation to the heart in response to the detected strength of the revolving magnetic field by the first and second sensor groups and the angular position and speed of movement of the directional magnetic field.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for locating and mapping a catheter in body invasive operations, comprising:a device for creating a directional magnetic field, with the directional magnetic field revolving 360 degrees through a person's body in correspondence to a specific organ in the pers

[ What is claimed is:] [1.] An apparatus for locating and mapping a catheter in body invasive operations, comprising:a device for creating a directional magnetic field, with the directional magnetic field revolving 360 degrees through a person's body in correspondence to a specific organ in the person's body, said device including:a north pole magnet generator,a south pole magnet generator, with the directional magnetic field being created by both the north and south pole magnetic generators and extending between said north pole magnet generator and said south pole magnet generator,a frame for positioning said north and south pole magnet generators on opposite sides of the person's body in correspondence to the specific organ in the person's body, anda revolving assembly for rotating said north and south pole magnet generators on said first and second opposite sides, respectively, in synchronism and in alignment with each other, in planes substantially transverse to said directional magnetic field such that said directional magnetic field traces a substantially cylindrical path during said rotation;a catheter for insertion into the organ, said catheter including a first sensing group including three sensors facing in mutually orthogonal directions and which detect a strength of said revolving magnetic field;a position detector for detecting an angular position of said directional magnetic field; anda central processing unit for computing and determining a location of said catheter in relation to said organ in response to said detected strength of said revolving magnetic field by said sensors of said first sensing group and the angular position of said directional magnetic field.