Integrated systems for intravascular placement of a catheter
First Claim
1. A catheter placement system for placing a catheter in a vasculature of a patient, comprising:
- an ultrasound probe that ultrasonically images an internal portion of the patient in an ultrasound mode prior to introduction of the catheter into the vasculature;
a magnetic assembly included with the catheter and designed to produce a magnetic field;
an electrocardiogram (ECG) tip confirmation component configured to obtain an intravascular ECG signal indicative of proximity of a distal tip of the catheter to a sino-atrial node of a heart of the patient, the ECG tip confirmation component including an ECG sensor assembly operably coupled to the catheter to measure an intravascular ECG signal;
a tip location sensor positionable on the patient, the tip location sensor configured to detect the magnetic field of the magnetic assembly when the catheter is disposed within the vasculature of the patient, the magnetic field providing magnetic field information for locating the magnetic assembly relative to the tip location sensor;
at least one console configured to receive the magnetic field information and the intravascular ECG signal; and
a display configured to simultaneously displaya graphical representation of the magnetic assembly based on the magnetic field information; and
in an ECG tip confirmation mode, successive ECG waveforms based on the data obtained using the ECG tip confirmation component, wherein the successive ECG waveforms change in relation to the proximity of the distal tip of the catheter to the sino-atrial node.
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Accused Products
Abstract
An integrated catheter placement system for accurately placing a catheter within a patient'"'"'s vasculature is disclosed. In one embodiment, the integrated system comprises a system console, a tip location sensor for temporary placement on the patient'"'"'s chest, and an ultrasound probe. The tip location sensor senses a magnetic field of a stylet disposed in a lumen of the catheter when the catheter is disposed in the vasculature. The ultrasound probe ultrasonically images a portion of the vasculature prior to intravascular introduction of the catheter. The ultrasound probe includes user input controls for controlling use of the ultrasound probe in an ultrasound mode and use of the tip location sensor in a tip location mode. In another embodiment, ECG signal-based catheter tip guidance is included in the integrated system to enable guidance of the catheter tip to a desired position with respect to a node of the patient'"'"'s heart.
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Citations
16 Claims
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1. A catheter placement system for placing a catheter in a vasculature of a patient, comprising:
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an ultrasound probe that ultrasonically images an internal portion of the patient in an ultrasound mode prior to introduction of the catheter into the vasculature; a magnetic assembly included with the catheter and designed to produce a magnetic field; an electrocardiogram (ECG) tip confirmation component configured to obtain an intravascular ECG signal indicative of proximity of a distal tip of the catheter to a sino-atrial node of a heart of the patient, the ECG tip confirmation component including an ECG sensor assembly operably coupled to the catheter to measure an intravascular ECG signal; a tip location sensor positionable on the patient, the tip location sensor configured to detect the magnetic field of the magnetic assembly when the catheter is disposed within the vasculature of the patient, the magnetic field providing magnetic field information for locating the magnetic assembly relative to the tip location sensor; at least one console configured to receive the magnetic field information and the intravascular ECG signal; and a display configured to simultaneously display a graphical representation of the magnetic assembly based on the magnetic field information; and in an ECG tip confirmation mode, successive ECG waveforms based on the data obtained using the ECG tip confirmation component, wherein the successive ECG waveforms change in relation to the proximity of the distal tip of the catheter to the sino-atrial node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for placing a catheter within a vasculature of a patient via a catheter placement system including a display, an ultrasound probe with a plurality of buttons thereon to call one or more modes to the display, an electrocardiogram (ECG) sensor assembly, a tip location sensor, a console, and the catheter, wherein the catheter includes a magnetic assembly designed to produce a magnetic field, the method comprising:
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ultrasonically imaging with the ultrasound probe a portion of the vasculature for depiction on the display in an ultrasound mode; introducing the catheter into the vasculature of the patient following the imaging; detecting, for depiction on the display, a first ECG signal and a successive second ECG signal of a heart node of the patient by the ECG sensor assembly at least partially disposed within the catheter when the catheter is within the vasculature of the patient; detecting, with the tip location sensor positioned on the patient, the magnetic field of the magnetic assembly when the catheter is disposed within the vasculature of the patient, the magnetic field providing magnetic field information for locating the magnetic assembly relative to the tip location sensor; receiving, with the console, the magnetic field information and the first ECG signal and the successive second ECG signal; and displaying simultaneously on the display; in a tip location mode, a graphical representation of the magnetic assembly based on the magnetic field information; and in an ECG tip confirmation mode, a first ECG waveform based on the first ECG signal, and a successive second ECG waveform based on the successive second ECG signal, wherein the first ECG waveform and the successive second ECG waveform are each indicative of different distances between a distal tip of the catheter and the heart node. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A catheter placement system for inserting a catheter into a vasculature of a patient, comprising:
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a stylet removably positionable within a lumen of the catheter, the stylet including; a magnetic assembly configured to produce a magnetic field; and an electrocardiogram (ECG) sensor assembly configured to detect ECG signals of a node of a heart of the patient; a tip location sensor positionable on a portion of a body of the patient, the tip location sensor configured to detect the magnetic field of the magnetic assembly when the catheter is disposed within the vasculature of the patient, the magnetic field providing magnetic field information for locating the magnetic assembly relative to the tip location sensor, the ECG sensor assembly operably connected to the tip location sensor to enable the ECG signals detected by the ECG sensor assembly to be communicated to the tip location sensor; and a display configured to simultaneously display; a graphical representation of the magnetic assembly based on the magnetic field information; and successive ECG waveforms based on the ECG signals detected by the ECG sensor assembly, wherein the successive ECG waveforms change in relation to the proximity of a distal end of the stylet to the node of the heart and the successive ECG waveforms indicate when a target proximity of the distal end of the stylet to the node of the heart has been achieved. - View Dependent Claims (16)
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Specification