Monitoring conditions of implantable medical fluid delivery device
First Claim
1. A method of troubleshooting a catheter associated with an implantable medical fluid delivery device, the method comprising:
- delivering a fluid from the implantable medical fluid delivery device through the catheter to a patient;
measuring a pressure associated with the catheter during the delivery of the fluid to the patient;
defining a current pressure waveform based on the measured pressure; and
determining a characteristic of the catheter based on a comparison of at least a first waveform portion of the current pressure waveform to at least a second waveform portion of a previously-acquired pressure waveform associated with the catheter during delivery of the fluid.
1 Assignment
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Accused Products
Abstract
A programmer device includes an interface that communicates with an implantable fluid delivery device and a user interface that allows a user to troubleshoot a catheter connected to the fluid delivery device by measuring a pressure associated with the catheter. A processor may compare the measured pressure waveform to a previously-acquired waveform or the user interface may display the measured pressure waveform for the user to compare the displayed pressure waveform to a previously-acquired baseline waveform. The comparison between the two waveforms may be based on the pressure decay time. A historical log of measured pressure decays associated with the catheter may be maintained by the programmer device or the implantable fluid delivery device and displayed for the user to determine whether the performance of the catheter is deteriorating.
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Citations
28 Claims
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1. A method of troubleshooting a catheter associated with an implantable medical fluid delivery device, the method comprising:
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delivering a fluid from the implantable medical fluid delivery device through the catheter to a patient; measuring a pressure associated with the catheter during the delivery of the fluid to the patient; defining a current pressure waveform based on the measured pressure; and determining a characteristic of the catheter based on a comparison of at least a first waveform portion of the current pressure waveform to at least a second waveform portion of a previously-acquired pressure waveform associated with the catheter during delivery of the fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of troubleshooting a catheter associated with an implantable medical fluid delivery device, the method comprising:
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delivering a fluid from the implantable medical fluid delivery device through the catheter to a patient; measuring a pressure associated with the catheter during the delivery of the fluid to the patient; defining a current pressure waveform based on the measured pressure; and displaying, on a display device, at least a portion of the current pressure waveform and at least a portion of a previously-acquired pressure waveform associated with the catheter during delivery of the fluid, for a user to determine a characteristic of the catheter based on a comparison of at least a portion of the current pressure waveform to at least a portion of a previously-acquired pressure waveform. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification