Pressurized fluid reservoir for an infusion system
First Claim
1. A fluid reservoir for an infusion system, which comprises:
- an expandable elastomeric bladder defining a chamber for receiving and containing a volume of therapeutic substance and exerting pressure thereon;
a bi-directional valve in fluid communication with the chamber of the elastomeric bladder for receiving therapeutic substance for at least partially filling the chamber and for dispensing therapeutic substance therefrom; and
a flexible conduit extending between the elastomeric bladder and the bi-directional valve and defining a fluid passageway which is in fluid communication with the bi-directional valve and the chamber of the elastomeric bladder.
1 Assignment
0 Petitions
Accused Products
Abstract
A fluid reservoir for a medical infusion system includes an expandable elastomeric bladder defining a chamber for receiving and containing a volume of therapeutic substance and exerting pressure thereon to dispense the therapeutic substance from the bladder. The bladder has preferably a single port formed through the thickness thereof. A bi-directional valve is in fluid communication with the chamber of the elastomeric bladder and is used for filling the bladder chamber with the therapeutic substance and for connecting to a catheter assembly for dispensing the therapeutic substance to a patient undergoing treatment. The single port of the elastomeric bladder is connected to a medical grade flexible tubing, which is also connected to the bi-directional valve.
29 Citations
26 Claims
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1. A fluid reservoir for an infusion system, which comprises:
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an expandable elastomeric bladder defining a chamber for receiving and containing a volume of therapeutic substance and exerting pressure thereon; a bi-directional valve in fluid communication with the chamber of the elastomeric bladder for receiving therapeutic substance for at least partially filling the chamber and for dispensing therapeutic substance therefrom; and a flexible conduit extending between the elastomeric bladder and the bi-directional valve and defining a fluid passageway which is in fluid communication with the bi-directional valve and the chamber of the elastomeric bladder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 25)
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19. An infusion system, which comprises:
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a fluid reservoir, the fluid reservoir including an expandable elastomeric bladder defining a chamber for receiving and containing a volume of therapeutic substance and exerting pressure thereon, a bidirectional valve in fluid communication with the chamber of the elastomeric bladder for receiving therapeutic substance for at least partially filling the chamber and for dispensing therapeutic substance therefrom, the elastomeric bladder having formed therein a single port through the thickness thereof, the single port being in fluid communication with the chamber and the bidirectional valve;
a flexible tube extending between the single port and the bidirectional valve; anda catheter assembly, the catheter assembly including a conduit, and a catheter connector connected to the conduit and coupleable to the bidirectional valve of the fluid reservoir. - View Dependent Claims (20, 21, 22)
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23. A method of delivering a therapeutic substance to a patient, which comprises the steps of:
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filling a fluid reservoir through a bidirectional valve of the fluid reservoir with a therapeutic substance, the fluid reservoir including an expandable elastomeric bladder defining a chamber for receiving and containing a volume of the therapeutic substance and exerting pressure thereon, the bidirectional valve being in fluid communication with the chamber of the elastomeric bladder for receiving the therapeutic substance for at least partially filling the chamber and for dispensing therapeutic substance therefrom, the elastomeric bladder having formed therein a single port through the thickness thereof, the single port being in fluid communication with the chamber and the bidirectional valve, wherein the bidirectional valve is coupled with the single port of the elastomeric bladder via a flexible tube; connecting a catheter assembly to the fluid reservoir, the catheter assembly including a conduit and a catheter connector connected to the conduit and coupleable to the bidirectional valve of the fluid reservoir, the catheter assembly and fluid reservoir connected thereto being fluid communicateable with a patient; and dispensing therapeutic substance from the chamber of the elastomeric bladder of the fluid reservoir and through the catheter assembly to a patient. - View Dependent Claims (24, 26)
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Specification