Subcutaneous multiple-access port
First Claim
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1. A subcutaneously implantable multiple port and preattached catheter comprising:
- a base having a plurality of open ended chambers, an externally exposed recess and a plurality of hollow nipples in communication with and extending from said chambers, said nipples being integral with said base and protruding into the recess;
a pierceable septum, covering the open end of each chamber;
a top member attached to and covering the base, the top member engaging the septums while exposing the septums;
a catheter assembly including a multi-lumen catheter connected at one end to said nipples, with a lumen in communication with each nipple, the connection being disposed within the recess; and
the recess being filled substantially in its entirety with a potting material to encapsulate the connection between the catheter assembly and the nipples and to form a permanent connection of the catheter to the base.
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Abstract
A multiple chamber subcutaneously implantable infusion port and catheter assembly is formed from a small number of plastic components that are easily injection molded and assembled. The components are constructed so that a catheter assembly is easily and securely bonded to the port.
237 Citations
16 Claims
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1. A subcutaneously implantable multiple port and preattached catheter comprising:
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a base having a plurality of open ended chambers, an externally exposed recess and a plurality of hollow nipples in communication with and extending from said chambers, said nipples being integral with said base and protruding into the recess; a pierceable septum, covering the open end of each chamber; a top member attached to and covering the base, the top member engaging the septums while exposing the septums; a catheter assembly including a multi-lumen catheter connected at one end to said nipples, with a lumen in communication with each nipple, the connection being disposed within the recess; and the recess being filled substantially in its entirety with a potting material to encapsulate the connection between the catheter assembly and the nipples and to form a permanent connection of the catheter to the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16)
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12. A subcutaneously implantable device having at least one port and a preattached catheter, comprising:
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a base having at least one open ended chamber, an externally exposed recess, at least one hollow nipple in communication with and extending from said at least one chamber and protruding into said recess, said at least one nipple being integral with said base; at least one pierceable septum, covering the open end of said at least one chamber; a top member attached to and covering said base, said top member engaging said at least one septum while exposing said at least one septum; a catheter assembly, including a catheter having at least one lumen, connected to at one end to said at least one nipple, with said at least one lumen in communication with said at least one nipple, said connection being disposed in said recess; and said recess being filled substantially in its entirety with a potting material to encapsulate said connection between said catheter assembly and said at least one nipple said potting material being fused to the catheter while simultaneously mechanically interlocking with at least one of the components within the recess selected from the group consisting of irregularities on the base, irregular elements on the nipples and projections on the inner side of the top thereby to form a permanent connection of the catheter to the base. - View Dependent Claims (14)
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Specification