IMPLANTABLE INFUSION DEVICE INCLUDING ANTI-SEALING RESERVOIR
First Claim
1. An implantable infusion device (IID) comprising:
- a housing;
an expandable and contractible reservoir configured to store a therapeutic agent and arranged within the housing, wherein a first end of the reservoir is configured to collapse toward a second end of the reservoir as the reservoir contracts; and
a standoff member interposed between the first end and the second end of the reservoir, wherein the standoff member is configured to hold at least a portion of the first end offset from the second end when the reservoir is in a contracted state.
1 Assignment
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Accused Products
Abstract
Techniques are disclosed for reducing the accumulation of gases in an implantable infusion device. In one example, an implantable infusion device (IID) includes a housing, an expandable and contractible reservoir, and a standoff member. The expandable and contractible reservoir is configured to store a therapeutic agent and is arranged within the housing. A first end of the reservoir is configured to collapse toward a second end of the reservoir as the reservoir contracts. The standoff member is interposed between the first end and the second end of the reservoir and is configured to hold at least a portion of the first end offset from the second end when the reservoir is in a contracted state.
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Citations
30 Claims
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1. An implantable infusion device (IID) comprising:
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a housing; an expandable and contractible reservoir configured to store a therapeutic agent and arranged within the housing, wherein a first end of the reservoir is configured to collapse toward a second end of the reservoir as the reservoir contracts; and a standoff member interposed between the first end and the second end of the reservoir, wherein the standoff member is configured to hold at least a portion of the first end offset from the second end when the reservoir is in a contracted state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implantable infusion device (IID) comprising:
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a housing; an expandable and contractible reservoir configured to store a therapeutic agent and arranged within the housing, the reservoir comprising; a first end connected to the housing; a substantially closed second end comprising a protrusion protruding toward the first end; and a side connecting the first and the second ends to form a reservoir chamber within which the reservoir stores the therapeutic agent, wherein the second end of the reservoir is configured to collapse toward the first end as the reservoir contracts, and wherein the protrusion is configured to hold at least a portion of the second end offset from the first end when the reservoir is in a contracted state. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A system comprising:
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a programmer; an implantable infusion device (IID) comprising; a housing; an expandable and contractible reservoir configured to store a therapeutic agent and arranged within the housing, the reservoir comprising; a first end connected to the housing; a substantially closed second end comprising a protrusion protruding toward the first end; and a side connecting the first and the second ends to form a reservoir chamber within which the reservoir stores the therapeutic agent, wherein the second end of the reservoir is configured to collapse toward the first end as the reservoir contracts, and wherein the protrusion is configured to hold at least a portion of the second end offset from the first end when the reservoir is in a contracted state; and a catheter connected to and configured to deliver the therapeutic agent from the reservoir to a site within a patient.
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29. A reservoir configured to store a therapeutic agent in an implantable infusion device (IID), the reservoir comprising:
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a first end comprising a ring-shape that forms an opening toward a center of the first end; a second substantially closed planar end comprising a protrusion protruding toward the first end; and a corrugated annular side substantially perpendicular to the first and the second ends and connecting the first and the second ends to form a cylindrical chamber within which the reservoir stores the therapeutic agent, wherein the corrugated annular side is configured to expand and contract to change a distance between the first end and the second end of the reservoir, and wherein the protrusion is configured to hold at least a portion of the second end offset from the first end when the reservoir is in a contracted state.
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30. An implantable infusion device (IID) comprising:
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a housing; an expandable and contractible reservoir configured to store a therapeutic agent and arranged within the housing, wherein a first end of the reservoir is configured to collapse toward a second end of the reservoir as the reservoir contracts; and a standoff means interposed between the first end and the second end of the reservoir, wherein the standoff means is for holding at least a portion of the first end offset from the second end when the reservoir is in a contracted state.
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Specification