Port design and method of assembly
First Claim
1. An implantable access port assembly comprising:
- a housing comprising a fluid chamber and a port stem extending from the housing, wherein the port stem includes an inner lumen forming a channel in fluid communication with the fluid chamber, the housing further comprising an energy director positioned on an upper surface of the housing for directing ultrasonic energy;
a cover with an access aperture for accessing the fluid chamber, wherein the cover comprises an inner surface configured for receiving the housing, and a flat on an under side of the cover for interfacing with the energy director; and
a septum configured to cover the fluid chamber and to be secured within the chamber by the cover.
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Accused Products
Abstract
An access port assembly having an ultrasonic weld energy director and method of assembling the access port utilizing the energy director. The access port may include a dual chamber port base and a port top for securing two septa on the base. An energy director may be positioned on the top end of the port base and a corresponding flat may be provided on the underside of the port top for receiving the energy director. Once the port top is aligned on top of the port based with the septa positioned in-between, far field welding may be implemented to connect the port top to the port base. The access port assembly may be further configured such that when the components are assembled for welding, the weld area is confined from air surrounding the port assembly.
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Citations
25 Claims
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1. An implantable access port assembly comprising:
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a housing comprising a fluid chamber and a port stem extending from the housing, wherein the port stem includes an inner lumen forming a channel in fluid communication with the fluid chamber, the housing further comprising an energy director positioned on an upper surface of the housing for directing ultrasonic energy;
a cover with an access aperture for accessing the fluid chamber, wherein the cover comprises an inner surface configured for receiving the housing, and a flat on an under side of the cover for interfacing with the energy director; and
a septum configured to cover the fluid chamber and to be secured within the chamber by the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of assembling an access port having a plurality of chambers, comprising the steps of:
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placing a plurality of septa in a port base;
aligning a port top on the port base and capturing the septa in between the port top and the port base; and
directing ultrasonic energy into a bottom of the port base, allowing the ultrasonic energy to propagate through a body of the port base toward a top end of the port base, and concentrating the ultrasonic energy through an energy director positioned on the top end of the port base. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method of fabricating an access port comprising the steps of:
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providing a port base, wherein the port base comprises an energy director positioned on a top end of the port base;
providing a port top, wherein the port top comprises a corresponding flat on an underside of the port top for receiving the energy director; and
welding the port top to the port base through far field welding. - View Dependent Claims (24, 25)
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Specification