Septum monitoring system and method for an implantable therapeutic substance delivery device
First Claim
1. A system for monitoring an implantable medical device, the system comprising:
- an implantable liquid therapeutic substance delivery device for delivering a therapeutic substance to a delivery site within a patient, the device including;
a housing maintaining a reservoir for containing the therapeutic substance,a fill port assembly defining a port chamber in fluid communication with the reservoir, the fill port assembly further including a septum fluidly sealing the port chamber relative to an exterior of the device;
a temperature sensor positioned to sense a temperature of the port chamber; and
an indicator device for indicating presence of liquid dispensed from a needle disposed within the port chamber based upon information from the temperature sensor.
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Accused Products
Abstract
A system for monitoring an implantable medical device. The system includes an implantable therapeutic substance delivery device for delivering a therapeutic substance, along with a temperature sensor and an indicator device. The delivery device includes a housing maintaining a reservoir for containing the therapeutic substance. Further, the delivery device includes a fill port assembly having a port chamber in fluid communication with the reservoir and including a septum fluidly sealing the chamber. The temperature sensor is associated with the fill port assembly. Finally, the indicator device is adapted to indicate presence of a needle within the port chamber based upon information from the temperature sensor.
31 Citations
32 Claims
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1. A system for monitoring an implantable medical device, the system comprising:
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an implantable liquid therapeutic substance delivery device for delivering a therapeutic substance to a delivery site within a patient, the device including; a housing maintaining a reservoir for containing the therapeutic substance, a fill port assembly defining a port chamber in fluid communication with the reservoir, the fill port assembly further including a septum fluidly sealing the port chamber relative to an exterior of the device; a temperature sensor positioned to sense a temperature of the port chamber; and an indicator device for indicating presence of liquid dispensed from a needle disposed within the port chamber based upon information from the temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of monitoring an implantable therapeutic substance delivery device, the method comprising:
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providing an implantable liquid therapeutic substance delivery device for delivering a therapeutic substance to a delivery site within a patient, the delivery device including; a housing maintaining a reservoir for containing the therapeutic substance; a fill port assembly including a port chamber in fluid communication with the reservoir, the fill port assembly further including a septum disposed across the port chamber to fluidly seal the port chamber relative to an exterior of the device; a temperature sensor positioned to sense a temperature of the port chamber; providing an indicator device for indicating presence of liquid dispensed from a needle within the port chamber based upon information from the sensor; sensing information relating to a temperature of the port chamber; and
determining whether the sensed information is indicative of a presence of a needle within the port chamber. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A system for monitoring an implantable medical device, the system comprising:
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an implantable liquid therapeutic substance delivery device for delivering a liquid therapeutic substance to a delivery site of a patient, the delivery device including; a housing maintaining a reservoir for containing the therapeutic substance; a fill port assembly including a septum exteriorly fluidly sealing a port chamber otherwise in fluid communication with the reservoir; an outlet catheter extending from the housing and fluidly connected to the reservoir; means carried by the housing for sensing information relating to a temperature of the port chamber; and indicator means electronically coupled to the sensing means for selectively indicating to a clinician information indicative of one of; absence of a needle in the port chamber, and presence of a needle and liquid dispensed therefrom in the port chamber, based upon information signaled from the sensing means. - View Dependent Claims (31, 32)
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Specification