Longitudinally aligned dual reservoir access port
First Claim
1. An access port comprising:
- (a) a needle-impenetrable housing enclosing a plurality of discrete fluid reservoirs, each of said fluid reservoirs communicating with the exterior of said housing through a corresponding access aperture;
(b) a needle-penetrable compound septum overlying said access apertures, said compound septum comprising;
(i) a planar septum web having a top surface and a bottom surface; and
(ii) a plurality of discrete plugs projecting from said bottom surface of said web, each of said plugs being received within a corresponding one of said access apertures of said fluid reservoirs; and
(c) clamping means for securing said septum against said housing in sealing engagement with each of said access apertures.
2 Assignments
0 Petitions
Accused Products
Abstract
A dual reservoir access port includes a metal casing having a top surface with recessed, open proximal and distal fluid reservoirs. Projecting from the casing on the side of the distal fluid reservoir opposite from the proximal fluid reservoir is a dual prong metal outlet stem. The distal fluid reservoir is carried within an open-topped basket that is disposed in a cup formed in the top surface of the casing. A first fluid flow pathway extends from the proximal fluid reservoir, between the basket and the wall of the distal cup, to the outlet stem. A second fluid flow pathway extends directly from the distal fluid reservoir to the outlet stem. A needle-penetrable compound septum is disposed against the casing simultaneously closing the top of the proximal fluid reservoir and the top of the distal fluid reservoir. A plastic jacket clamps the septum against the casing and compresses the periphery of the septum to effect a fluid seal by the septum of each of the fluid reservoirs. An annular sleeve mechanically locks and fluid couples a dual lumen catheter to the outlet stem. The catheter may be chosen from among three dual lumen catheters, each having a combination of material composition and lumen configuration that is distinct from those of the others of the catheters.
243 Citations
120 Claims
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1. An access port comprising:
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(a) a needle-impenetrable housing enclosing a plurality of discrete fluid reservoirs, each of said fluid reservoirs communicating with the exterior of said housing through a corresponding access aperture; (b) a needle-penetrable compound septum overlying said access apertures, said compound septum comprising; (i) a planar septum web having a top surface and a bottom surface; and (ii) a plurality of discrete plugs projecting from said bottom surface of said web, each of said plugs being received within a corresponding one of said access apertures of said fluid reservoirs; and (c) clamping means for securing said septum against said housing in sealing engagement with each of said access apertures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An access port comprising:
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(a) a housing having a floor and a top surface, said housing enclosing a plurality of discrete fluid reservoirs, each of said fluid reservoirs communicating with the exterior of said housing through a corresponding access aperture formed through said top surface of said housing; (b) delivery means for effecting fluid communication between each of said plurality of fluid reservoirs and the exterior of said housing; (c) a needle-penetrable compound septum overlying each of said access apertures; (d) a shoe configured to receive said floor of said housing; and (e) a cap configured to receive said compound septum and said top surface of said housing and to engage said shoe, thereby compressing said septum against said top surface of said housing. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A dual reservoir access port comprising:
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(a) an elongated housing having proximal and distal ends and a top surface and a floor extending therebetween on opposite sides of said housing, said housing comprising; (i) a proximal fluid reservoir formed in said proximal end of said housing and communicating with the exterior of said housing through a proximal access aperture formed through said top surface of said housing; (ii) a distal fluid reservoir formed in said distal end of said housing and communicating with the exterior of said housing through a distal access aperture formed through said top surface of said housing; (iii) a first fluid flow pathway formed in said housing between a predetermined outlet location at said distal end of said housing and said proximal fluid reservoir; and (iv) a second fluid flow pathway formed in said housing between said predetermined outlet location and said distal fluid reservoir; (b) an outlet stem projecting from said housing at said outlet location with a distal end remote from said housing, said outlet stem comprising; (i) a first fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said first fluid flow pathway; and (ii) a second fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said second fluid flow pathway; (c) a needle-penetrable compound septum disposed against said top surface of said housing overlying said proximal access aperture and said distal access aperture; and (d) a clamp compressing said septum against said housing, said clamp comprising; (i) a cap configured to receive said top surface of said housing with said compound septum disposed thereagainst; and (ii) a shoe configured to receive said floor of said housing and to engage said cap. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An implantable fluid delivery system comprising:
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(a) an implantable dual reservoir access port comprising; (i) a housing having a proximal end and a distal end, said housing comprising; (A) a proximal fluid reservoir formed in said proximal end of said housing and communicating with the exterior of said housing through a proximal access aperture; (B) a distal fluid reservoir formed in said distal end of said housing and communicating with the exterior of said housing through a distal access aperture; (C) a first fluid flow pathway formed in said housing between a predetermined outlet location at said distal end of said housing and said proximal fluid reservoir; and (D) a second fluid flow pathway formed in said housing between said predetermined outlet location and said distal fluid reservoir; (ii) an outlet stem projecting from said housing at said outlet location with a distal end remote from said housing, said outlet stem comprising; (A) a first and a second outlet prong at said distal end of said outlet stem, each of said first and second outlet prongs having an exterior surface and an opposing inner face, said opposing inner faces defining a slot in said distal end of said outlet stem; (B) a first fluid duct longitudinally extending through said first outlet prong of said outlet stem to said first fluid flow pathway; and (C) a second fluid duct longitudinally extending through said second outlet prong of said outlet stem to said second fluid flow pathway; (iii) a needle-penetrable compound septum overlying said proximal access aperture and said distal access aperture; (iv) a clamp configured to compress said septum to said housing, said clamp comprising; (A) a shoe configured to receive said floor of said housing; and (B) a cap configured to receive said compound septum and said top surface of said housing and to engage said shoe, thereby compressing said septum against said housing; (b) a dual lumen catheter comprising a body wall enclosing a pair of longitudinally extending fluid flow lumens separated by a septum; and (c) a locking sleeve having a proximal end, a distal end, and an interior surface defining a passageway longitudinally extending through said locking sleeve, said interior surface of said locking sleeve radially, inwardly compressing a portion of said body wall of said dual lumen catheter against a portion of said exterior surface of said stem, when said distal end of each of said first and second outlet prongs is individually received in a corresponding one of said lumens of said dual lumen catheter and said dual lumen catheter with said stem received therein is positioned within said passageway of said locking sleeve. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A subassembly for a dual reservoir access port, the subassembly comprising:
(a) a housing comprising a floor and an encircling sidewall upstanding therefrom, said housing further comprising; (i) a proximal fluid reservoir interior of said sidewall at a proximal end of said housing; (ii) a distal fluid reservoir interior of said sidewall at a distal end of said housing; and (iii) a fluid flow pathway formed in said sidewall of said housing between said proximal fluid reservoir and the exterior of said housing at a predetermined outlet location at said distal end of said housing; and (b) an outlet stem projecting from said housing at said outlet location with a distal end remote from said housing, said outlet stem comprising; (i) a first fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said fluid flow pathway; and (ii) a second fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said distal fluid reservoir. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A subassembly for a dual reservoir access port, the subassembly comprising:
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(a) a casing having a proximal fluid reservoir formed in a proximal end of said casing and a distal cup formed in a distal end of said casing; (b) a sleeve received in said distal cup with an exterior surface of said sleeve engaging a portion of the interior surface of said distal cup; (c) an outlet stem projecting from said casing at a predetermined outlet location at said distal end of said casing with a free distal end remote from said casing, said outlet stem comprising; (i) a first fluid duct longitudinally extending from said distal end of said stem to said casing; and (ii) a second fluid duct longitudinally extending from said distal end of said stem to said distal cup; and (d) fluid conduit means between said casing and said sleeve for placing said proximal fluid reservoir in fluid communication with said first fluid duct of said outlet stem. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77, 78)
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79. A subassembly for a dual reservoir access port, the subassembly comprising:
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(a) a casing having a proximal fluid reservoir formed in a proximal end of said casing and a distal cup formed in said distal end of said casing; (b) an open-topped basket defining a distal fluid reservoir received in said distal cup, said basket having an exterior surface engaging a predetermined portion of an interior surface of said distal cup; (c) a fluid flow pathway located between said basket and said distal cup, said fluid flow pathway extending from said proximal fluid reservoir to the exterior of said casing at a predetermined outlet location at said distal end of said casing; and (d) an outlet stem projecting from said casing at said outlet location with a distal end remote from said casing, said outlet stem comprising; (i) a first fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said fluid flow pathway; and (ii) a second fluid duct longitudinally extending through said outlet stem between said distal end of said outlet stem and said distal fluid reservoir. - View Dependent Claims (80, 81, 82, 83, 84, 85, 86, 87, 88)
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89. An outlet stem for an access port, the outlet stem comprising:
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(a) an exterior surface extending between a proximal end and a distal end; and (b) an interior surface defining a first fluid duct longitudinally extending between said distal end and said proximal end, said first fluid duct at said distal end of said outlet stem having a substantially D-shaped transverse cross-section, and said first fluid duct at said proximal end of said outlet stem having a substantially circular shaped transverse cross-section. - View Dependent Claims (90, 91, 92, 93, 94, 95, 96)
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97. An outlet stem for a dual reservoir access port, the outlet stem comprising:
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(a) a stem barrel having a proximal end and a distal end; (b) first and second parallel outlet prongs projecting from said distal end of said stem barrel and each terminating in a respective free end; (c) a boss projecting from a portion of said proximal end of said stem barrel; (d) a first fluid duct longitudinally extending through said first outlet prong, said stem barrel, and said boss, said first fluid duct having a transverse cross section at one end thereof distinct from the transverse cross section at the other end thereof; and (e) a second fluid duct extending longitudinally through said second outlet prong and said stem barrel, said second fluid duct having a transverse cross section at one end thereof distinct from the transverse cross section at the other end thereof. - View Dependent Claims (98, 99, 100, 101, 102, 103, 104)
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105. A method of manufacturing an outlet stem for an implantable access port, the method comprising the steps of:
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(a) providing a stem body having a distal end face, a proximal end face, and an encircling exterior surface extending therebetween; (b) forming a pilot passageway through said stem body from said distal end face to said proximal end face; (c) disposing an EDM wire though said pilot passageway; and (d) enlarging said pilot passageway by removing portions of the stem body adjacent to said pilot passageway with said EDM wire, thereby forming a fluid duct having distinct transverse cross sections at the opposite ends thereof. - View Dependent Claims (106, 107, 108, 109, 110, 111)
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112. A method of manufacturing a dual reservoir access port, the method comprising the steps of:
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(a) forming in a needle-impenetrable casing a distal cup, an open-topped proximal fluid reservoir, and a fluid flow pathway extending between said proximal fluid reservoir and a predetermined outlet location on the opposite side of said distal cup from said proximal fluid reservoir; (b) positioning an open-topped basket in said distal cup, thereby defining an open-topped distal fluid reservoir within said basket; (c) fabricating an outlet stem enclosing first and second fluid ducts longitudinally extending therethrough; (d) securing the proximal end of said outlet stem to said casing at said predetermined outlet location with said first fluid duct communicating with said fluid flow pathway and said second fluid duct communicating with said distal fluid reservoir; (e) covering the top of said distal fluid reservoir and the top of said proximal fluid reservoir with a needle-penetrable compound septum; and (f) clamping said compound septum against said casing to preclude fluid communication between said proximal fluid reservoir and said distal fluid reservoir. - View Dependent Claims (113, 114, 115)
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116. A septum for use in an implantable dual reservoir vascular access port of the type having a needle-impenetrable housing enclosing distinct first and second fluid reservoirs accessible from the exterior of the access port through corresponding first and second access apertures formed through a wall of the housing, said septum comprising:
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(a) a septum web having a top surface, a bottom surface, and a surrounding side surface therebetween; (b) a first septum plug projecting from said bottom surface of said web; and (c) a second septum pug distinct from said first septum plug projecting from said bottom surface of said web. - View Dependent Claims (117, 118, 119, 120)
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Specification