Catheter locator apparatus and method of use
First Claim
1. A method of locating a radiating coil which is positioned inside a catheter to be inserted into a subject body wherein the coil radiates signal energy, the method comprising:
- placing a coil detector device on a predetermined external location on the subject body, the coil detector device having at least two coil detectors and an external shape adapted to be fixedly placed on the predetermined external location, and is configured to generate a signal based on a spatial separation of the radiating coil from the coil detector device; and
displaying a predetermined symbol representative of a portion of a non-subject body wherein the signal generated by the coil detector device is used to display a predetermined coil symbol representative of the radiating coil at a position on a display device relative to the predetermined symbol for use by a clinician to guide a positioning of the radiating coil and the catheter into the subject body,wherein the coil detector device and;
a first end of a pair of wires or a multi-stranded wire are in electronic communication with a processor, further wherein a second end of the pair of wires or the multi-stranded wire is connected to the radiating coil.
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Accused Products
Abstract
This invention relates to a method of catheter and radiating coil location in a human body. In particular, when a radiating coil is used in conjunction with a catheter, a coil locating device can be used to determine the distance the coil is from the device and its depth in the patient'"'"'s body. A display is provided that shows both a reference image of a portion of a non-subject body and an image of the coil located on the display with reference to the reference image. This is achieved by locating the coil-locating device on a predetermined landmark on the patient'"'"'s body. The coil and its signal wires can be incorporated into a stylet, guide wire or a catheter. The coil locating device can be orientated towards the head of the patient and for an axis of the device to be aligned with the mid sagittal plane of the patient.
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Citations
16 Claims
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1. A method of locating a radiating coil which is positioned inside a catheter to be inserted into a subject body wherein the coil radiates signal energy, the method comprising:
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placing a coil detector device on a predetermined external location on the subject body, the coil detector device having at least two coil detectors and an external shape adapted to be fixedly placed on the predetermined external location, and is configured to generate a signal based on a spatial separation of the radiating coil from the coil detector device; and displaying a predetermined symbol representative of a portion of a non-subject body wherein the signal generated by the coil detector device is used to display a predetermined coil symbol representative of the radiating coil at a position on a display device relative to the predetermined symbol for use by a clinician to guide a positioning of the radiating coil and the catheter into the subject body, wherein the coil detector device and;
a first end of a pair of wires or a multi-stranded wire are in electronic communication with a processor, further wherein a second end of the pair of wires or the multi-stranded wire is connected to the radiating coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification