Implantable injection port
First Claim
Patent Images
1. A low profile implantable injection port for subcutaneous implantation into the body of a patient, comprising:
- a generally cup-shaped housing having an open end;
a self-sealing septum mounted to said housing in the open end;
a low aspect ratio fluid channel within the housing below the septum;
a needle-penetrable, non-solid component in the fluid channel to form a low residual fluid-retaining volume within the fluid channel, the component having interconnected pathways for allowing fluid to move through the channel; and
a conduit connector connected to said housing and in fluid communication with said fluid channel for delivering medication from said channel to a patient when attached to a catheter.
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Abstract
An implantable injection port consists of a very low profile housing with virtually no residual volume while maintaining a large target area for the needle.
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Citations
18 Claims
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1. A low profile implantable injection port for subcutaneous implantation into the body of a patient, comprising:
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a generally cup-shaped housing having an open end; a self-sealing septum mounted to said housing in the open end; a low aspect ratio fluid channel within the housing below the septum; a needle-penetrable, non-solid component in the fluid channel to form a low residual fluid-retaining volume within the fluid channel, the component having interconnected pathways for allowing fluid to move through the channel; and a conduit connector connected to said housing and in fluid communication with said fluid channel for delivering medication from said channel to a patient when attached to a catheter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable injection port for subcutaneous implantation into the body of a patient, comprising:
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a housing defining a chamber; a self-sealing septum mounted to said housing and closing said chamber; an aperture in said housing providing fluid communication between said chamber and the exterior of said housing; and a conduit connector connected to said housing and in fluid communication with said chamber for delivering medication from said channel to a patient when attached to a catheter, said conduit connector being press fit into an aperture in said housing, said conduit connector including a collapsible tube which is compressed into said housing aperture.
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8. An implantable injection port for subcutaneous implantation into the body of a patient, comprising:
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a generally cup-shaped housing having an open end; a self-sealing septum mounted to said housing in the open end; a low residual volume channel within said housing below said septum; and a conduit connector connected to said housing and in fluid communication with said channel for delivering medication from said channel to a patient when attached to a catheter, said housing having a height less than about 1/3 the diameter of said housing, said septum having a diameter at least 2/3 the housing diameter. - View Dependent Claims (9, 10, 11)
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12. An implantable injection port for subcutaneous implantation into the body of a patient, comprising:
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a housing defining a chamber; a self-sealing septum mounted to said housing and closing said chamber; an aperture in said housing providing fluid communication between said chamber and the exterior of said housing; and a conduit connector connected to said housing and in fluid communication with said chamber for delivering medication from said channel to a patient when attached to a catheter, said conduit connector having a collapsible flange that is fit into said housing aperture by an interference fit. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification