IMPLANTABLE INFUSION DEVICES INCLUDING APPARATUS FOR CONFIRMING SIDE PORT ACCESS
5 Assignments
0 Petitions
Accused Products
Abstract
Implantable infusion devices and systems with side port access detection capability and methods of detecting side port access.
4 Citations
27 Claims
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1-8. -8. (canceled)
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9. An implantable infusion device, comprising:
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a housing; a reservoir within the housing; a reservoir refill port on the housing and connected to the reservoir; a pump mechanism located within the housing and connected to the reservoir; an outlet port configured to have a catheter connected thereto; a passageway that connects the outlet port to the pump mechanism; a side port on the housing and connected to the passageway at a location between the pump mechanism and the outlet port; a pressure sensor within the housing and connected to the passageway at a location between the pump mechanism and the outlet port; and means for determining that the side port has been accessed by a needle based on a decrease in pressure measured by the pressure sensor. - View Dependent Claims (10, 11, 12, 13)
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14. An implantable infusion device, comprising:
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a housing; a reservoir within the housing; a reservoir refill port on the housing and connected to the reservoir; a pump mechanism located within the housing and connected to the reservoir; an outlet port configured to have a catheter connected thereto; a passageway that connects the outlet port to the pump mechanism; a side port on the housing and connected to passageway at a location between the pump mechanism and the outlet port; a pressure sensor within the housing and connected to the passageway at a location between the pump mechanism and the outlet port; an alarm; and a control apparatus adapted to store a pressure sensed by the pressure sensor as a baseline pressure in response to a signal from a remote device, calculate a low threshold pressure based on the baseline pressure, and actuate the alarm if a pressure subsequently sensed by the pressure sensor decreases to the low threshold pressure. - View Dependent Claims (15, 16, 17)
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18-19. -19. (canceled)
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20. An implantable infusion device system, comprising:
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an implantable infusion device including a housing, a reservoir within the housing, a reservoir refill port on the housing and connected to the reservoir, a pump mechanism located within the housing and connected to the reservoir, an outlet port configured to have a catheter connected thereto, a passageway that connects the outlet port to the pump mechanism, a side port on the housing and connected to the passageway at a location between the pump mechanism and the outlet port, and a pressure sensor within the housing and connected to the passageway at a location between the pump mechanism and the outlet port; a remote control adapted to communicate with the implantable infusion device; and a control apparatus adapted to determine that the side port has been accessed by a needle based on a decrease in pressure measured by the pressure sensor. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27-28. -28. (canceled)
Specification