Venous access port assembly and method of making same
First Claim
1. A venous access port assembly, comprising:
- a housing having a discharge port, a needle-penetrable septum and a cap securable to the housing and retaining the septum securely in the assembly,wherein an upper portion of a housing base of the housing includes a septum seat into which a seating flange of the septum is seated, andwherein the housing base upper portion includes a first retention section extending circumferentially around much of the upper portion, and the cap includes an interior cavity having an inwardly facing surface associated with and adjacent to the housing base upper portion and a second retention section is defined circumferentially around much of the inwardly facing surface and is associated with the first retention section and complementary thereto such that upon assembly of the cap to the housing base the first and second retention sections snap fit together to assure mechanical joining of the cap to the housing base thereby securing the septum in the housing.
1 Assignment
0 Petitions
Accused Products
Abstract
A venous access port assembly (10) having a housing base (28) with a discharge port (16), a septum (14) and a cap (48). An interior reservoir (22) is defined by a well (30) in the housing base and a bottom (62) of the septum, and a passageway (20) extends from the reservoir through the discharge port (16). The cap (48) is secured to an upper portion of the housing base and securely retains the septum in the assembly (10), compressing an annular flange (60) of the septum against a septum seat (52) of the housing base. The cap (48) is mechanically secured to the housing base (28) as well as being bonded thereto. A method is disclosed for mechanically securing the cap (48) to the housing base (28), in a manner compressing the flange (60) of the septum (14) and sealing the reservoir (22).
114 Citations
12 Claims
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1. A venous access port assembly, comprising:
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a housing having a discharge port, a needle-penetrable septum and a cap securable to the housing and retaining the septum securely in the assembly, wherein an upper portion of a housing base of the housing includes a septum seat into which a seating flange of the septum is seated, and wherein the housing base upper portion includes a first retention section extending circumferentially around much of the upper portion, and the cap includes an interior cavity having an inwardly facing surface associated with and adjacent to the housing base upper portion and a second retention section is defined circumferentially around much of the inwardly facing surface and is associated with the first retention section and complementary thereto such that upon assembly of the cap to the housing base the first and second retention sections snap fit together to assure mechanical joining of the cap to the housing base thereby securing the septum in the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of assembling a venous access port assembly, comprising the steps of:
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providing a port housing base having a well and further having a discharge port and a passageway extending from the well through the discharge part, a needle-penetrable septum, and a cap securable to the housing base to securely retain the septum to the housing base; and lockably securing the cap to the housing base mechanically. - View Dependent Claims (9, 10)
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11. A discharge port for a medical device for insertion into a catheter end for establishing a sealed fluid connection therewith, comprising:
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a stem extending from a proximal end for connection to a medical device, a distal end for insertion into a catheter end, and a passageway therethrough; and at least one annular protuberance spaced from the distal end, each at least one protuberance having a rounded catheter-engaging outer surface. - View Dependent Claims (12)
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Specification