Medication infusion set
First Claim
1. An infusion set for subcutaneous administration of a fluid, comprising:
- a cannula housing defining a fluid passageway along a longitudinal axis thereof, the cannula housing including an arcuate guide rail and a cannula, said cannula being in fluid communication with the passageway and configured to be placed into the skin of a patient; and
a connector adapted to be connected to the cannula housing, the connector comprising a guide arm configured to mate with the arcuate guide rail, and a locking arm having a barb, wherein the cannula housing further defines a recess therein adjacent said fluid passageway, said recess being adapted to receive the barb when the connector is connected to the cannula housing.
1 Assignment
0 Petitions
Accused Products
Abstract
An infusion set is provided for use in delivering fluid through a cannula, which is housed on a cannula housing, to a selected subcutaneous infusion site on a patient. The fluid is generally a medication, for example, insulin. The cannula is in fluid communication with a fluid passageway surrounded by a projection on the cannula housing that includes one or more rail-like extensions acting as connection guides. A connector connects the cannula housing to a fluid delivery system, such as an infusion pump. The connector includes a connecting needle and one or more guide arms that slide over the rail-like extensions to guide the needle into the self-sealing septum. The connector includes one or more locking arms, with barbs at the end, to connect with one or more recesses that are provided in the cannula housing.
133 Citations
25 Claims
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1. An infusion set for subcutaneous administration of a fluid, comprising:
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a cannula housing defining a fluid passageway along a longitudinal axis thereof, the cannula housing including an arcuate guide rail and a cannula, said cannula being in fluid communication with the passageway and configured to be placed into the skin of a patient; and
a connector adapted to be connected to the cannula housing, the connector comprising a guide arm configured to mate with the arcuate guide rail, and a locking arm having a barb, wherein the cannula housing further defines a recess therein adjacent said fluid passageway, said recess being adapted to receive the barb when the connector is connected to the cannula housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A cannula housing for subcutaneous administration of a fluid, said housing comprising:
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a projection defining a passageway therethrough;
a cannula in fluid communication with the passageway and configured to be placed into the skin of a patient;
an arcuate guide rail formed on an external surface of the projection and configured to mate with an arcuate portion of a connecting device; and
a recess adapted to receive an end of a locking arm extending outwardly from the connecting device. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. An infusion set for subcutaneous administration of a fluid, comprising:
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a cannula housing defining a fluid passageway along a longitudinal axis thereof, the cannula housing including a guide opening adjacent the fluid passageway and a cannula, said cannula being in fluid communication with the passageway and configured to be placed into the skin of a patient; and
a connector adapted to be connected to the cannula housing, the connector comprising a guide pin and a locking arm having a barb, wherein the cannula housing further defines a recess therein, said recess being adapted to receive the barb and said guide opening being adapted to receive the guide pin when the connector is connected to the cannula housing. - View Dependent Claims (23)
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24. An infusion set for subcutaneous administration of a fluid, comprising:
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a cannula housing defining a fluid passageway along a longitudinal axis thereof and a guide recess adjacent the passageway, the cannula housing including a cannula in fluid communication with the passageway and configured to be placed into the skin of a patient; and
a connector adapted to be connected to the cannula housing, the connector comprising a guide rail to mate with said guide recess, and a locking arm having a barb, wherein the cannula housing further defines a barb-receiving recess therein, said barb-receiving recess being adapted to receive the barb when the connector is connected to the cannula housing. - View Dependent Claims (25)
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Specification