Medication infusion set
First Claim
1. An infusion set for subcutaneous administration of a fluid, comprising:
- a cannula housing includinga projection,a passageway formed through the projection,a first convex-shaped guide rail formed on a first external surface of the projection;
a second convex-shaped guide rail formed on a second external surface of the projection, anda cannula adapted to be placed into the skin of a patient and in fluid communication with the passageway in the projection; and
a connector adapted to be connected to the cannula housing, the connector includinga first guide arm having a first concave portion adapted to slide over the first convex-shaped guide rail,a second guide arm having a second concave portion adapted to slide over the second convex-shaped guide rail, anda first locking arm, wherein the first locking arm includes a first barb, and wherein the cannula housing further includes a first recess adapted to receive the first barb.
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.
255 Citations
59 Claims
-
1. An infusion set for subcutaneous administration of a fluid, comprising:
-
a cannula housing including a projection, a passageway formed through the projection, a first convex-shaped guide rail formed on a first external surface of the projection; a second convex-shaped guide rail formed on a second external surface of the projection, and a cannula adapted to be placed into the skin of a patient and in fluid communication with the passageway in the projection; and a connector adapted to be connected to the cannula housing, the connector including a first guide arm having a first concave portion adapted to slide over the first convex-shaped guide rail, a second guide arm having a second concave portion adapted to slide over the second convex-shaped guide rail, and a first locking arm, wherein the first locking arm includes a first barb, and wherein the cannula housing further includes a first recess adapted to receive the first barb. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A cannula housing for subcutaneous administration of a fluid, comprising:
-
a projection, a first convex-shaped guide rail formed on a first external surface of the projection and adapted to mate with a first concave portion on a first guide arm on a connecting device, a second convex-shaped guide rail formed on a second external surface of the projection and adapted to mate with a second concave portion on a second guide arm on the connecting device; a first recess adapted to receive a first barb on a first locking arm that is included on the connecting device, a passageway formed through the projection; and a cannula adapted to be placed into the skin of a patient and in fluid communication with the passageway in the projection. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
-
-
45. An infusion set for subcutaneous administration of a fluid, comprising:
-
a cannula housing including a projection, a passageway formed through the projection, a first guide rail formed on a first external surface of the projection; a second guide rail formed on a second external surface of the projection, a cannula adapted to be placed into the skin of a patient and in fluid communication with the passageway in the projection; and a connector adapted to be connected to the cannula housing, the connector including a first guide arm having a first guide portion adapted to slide over the first guide rail, a second guide arm having a second guide portion adapted to slide over the second guide rail, and a first locking arm, wherein the first locking arm includes a first barb, and wherein the cannula housing further includes a first recess adapted to receive the first barb, wherein one of the first guide rail and the first guide portion is convex and the other is concave, and wherein one of the second rail and the second guide portion is convex and the other is concave. - View Dependent Claims (46, 47, 48, 49, 50, 51)
-
-
52. An infusion set for subcutaneous administration of a fluid, comprising:
-
a cannula housing including a projection, a passageway formed through the projection, a first guide rail formed on a first external surface of the projection; a second guide rail formed on a second external surface of the projection, a cannula adapted to be placed into the skin of a patient and in fluid communication with the passageway in the projection; and a connector adapted to be connected to the cannula housing, the connector including a first guide arm having a first guide portion adapted to slide over the first guide rail, a second guide arm having a second guide portion adapted to slide over the second guide rail, wherein one of the first guide rail and the first guide portion is convex and the other is concave, wherein one of the second rail and the second guide portion is convex and the other is concave, and wherein the projection contacts the first guide arm only at the first guide portion when the connector is connected to the cannula housing. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59)
-
Specification