Ambulatory drug delivery device
First Claim
1. Ambulatory drug delivery apparatus, comprising:
- a housing;
a fluid reservoir in said housing comprising an extended conduit adapted for storing a fluid to be delivered and having an inlet end and an outlet end,pump means in communication with said inlet end for pressurizing a driving fluid and introducing said pressurized driving fluid into said conduit;
fluid delivery means in communication with said outlet end for delivering fluid from said conduit upon said introduction of pressurized driving fluid;
movable indicator means disposed in said conduit between said driving fluid and said fluid to be delivered; and
attachment means for attaching said housing to a user'"'"'s body.
12 Assignments
0 Petitions
Accused Products
Abstract
A device for infusing a drug into an ambulatory patient, the drug being contained in a transparent spiral conduit which is embedded in a disposable flexible casting conformingly adhered to the patient'"'"'s body, includes a reusable micropump module which is detachably mounted in a collar valve on the casting and forces oxygen into the conduit under pressure to expel the drug into a semi-pivoting cannula inserted into the patient'"'"'s body. A colored oil drop between the oxygen and the drug in the conduit provides a visual indication of drug quantity, while a filter with hydrophobic and hydrophylic membranes keeps the oxygen and oil substantially out of the cannula. A test button sounds an alarm when the device is ready for use and a pressure sensitive switch automatically sounds an alarm and shuts off the pump if the drug becomes completely discharged from the conduit or if the drug delivery system becomes occluded and an interlock switch completes the circuit between the pump and a power source when the reusable module and disposable casting are joined.
447 Citations
26 Claims
-
1. Ambulatory drug delivery apparatus, comprising:
-
a housing; a fluid reservoir in said housing comprising an extended conduit adapted for storing a fluid to be delivered and having an inlet end and an outlet end, pump means in communication with said inlet end for pressurizing a driving fluid and introducing said pressurized driving fluid into said conduit; fluid delivery means in communication with said outlet end for delivering fluid from said conduit upon said introduction of pressurized driving fluid; movable indicator means disposed in said conduit between said driving fluid and said fluid to be delivered; and attachment means for attaching said housing to a user'"'"'s body. - View Dependent Claims (2, 3, 4)
-
-
5. Ambulatory fluid delivery apparatus, comprising:
-
a housing; spiral passageway means in said housing for carrying a fluid to be delivered, said passageway means having an inlet and an outlet; pump means in communication with said inlet for pressurizing a driving fluid and introducing said pressurized driving fluid into said passageway means; fluid delivery means in communication with said outlet for delivering fluid from said passageway means upon said introduction of pressurized driving fluid; and attachment means for attaching said housing to a user'"'"'s body. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. Ambulatory fluid delivery apparatus, comprising:
-
a housing; passageway means in said housing for carrying a fluid to be delivered, said passageway means having an inlet and an outlet; pump means in communication with said inlet for pressurizing a driving fluid and introducing said pressurized driving fluid into said passageway means; fluid delivery means in communication with said outlet for delivering fluid from said passageway means upon said introduction of pressurized driving fluid; attachment means for attaching said housing to a user'"'"'s body; and filter means in communication with said outlet for preventing gas in said passageway means from entering said fluid delivery means, said filter means comprising; a fluid chamber in communication with said outlet for receiving fluid from said passageway means upon said introduction of pressurized driving fluid; a first outlet port establishing communication between said chamber and the atmosphere and a second outlet port establishing communication between said chamber and said fluid deliver means; a hydrophobic membrane disposed across said first outlet port for venting gas from said chamber into said atmosphere and retaining liquid in said chamber; and a hydrophylic membrane disposed across said second outlet port for retaining gas in said chamber and venting liquid from said chamber into said fluid delivery means. - View Dependent Claims (17, 18)
-
-
19. Ambulatory fluid delivery apparatus, comprising;
-
a housing having a disposable portion and a reusable portion detachably connected thereto; passageway means in said disposable portion for carrying a fluid to be delivered, said passageway means having an inlet and an outlet; pump means in said reusable portion in communication with said inlet for pressurizing a driving fluid and introducing said pressurized driving fluid into said passageway means; fluid delivery means in said disposable portion in communication with said outlet for delivering fluid from said passageway means upon said introduction of pressurized driving fluid; attachment means for attaching said housing to a user'"'"'s body; power source means for supplying electrical power to said pump means; and switch means electrically connected to said power source means and said pump means for selectively establishing electrical communication therebetween, said switch means being mounted on said reusable portion and being configured to establish said electrical communication when said reusable portion is connected to said disposable portion. - View Dependent Claims (20)
-
-
21. Ambulatory fluid delivery apparatus, comprising:
-
a housing; passageway means in said housing for carrying a fluid to be delivered, said passageway means having an inlet and an outlet; pump means in communication with said inlet for pressurizing a driving fluid and introducing said pressurized driving fluid into said passageway means; fluid delivery means in communication with said outlet for delivering fluid from said passageway means upon said introduction of pressurized driving fluid; attachment means for attaching said housing to a user'"'"'s body; and pressure sensor means operatively connected to said pump means for inactivating said pump means upon sensing pressure outside predetermined levels, said pressure sensor means being in communication with said passageway means for sensing fluid pressure therein. - View Dependent Claims (22, 23, 24, 25, 26)
-
Specification