Infusion device having offset flow path

• US 20050267441A1
• Filed: 07/27/2005
• Published: 12/01/2005
• Est. Priority Date: 03/31/2003
• Status: Active Grant

• Current Assignee: ICU Medical Incorporated
• Original Assignee: Sterling Medivations, Inc. (Guided Therapeutics, Inc.)
• Inventors: Douglas, Joel S.
• Granted Patent: US 7,211,068 B2
• Time in Patent Office: Days
• US Class Current: 604/506
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An infusion device, including: a housing; an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle; a septum disposed in the housing; a passageway under said septum and in fluid communication with said cannula; and, an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the ion cannula and the infusion needle are aligned on separate non identical axes.

Claims

1. An infusion device, comprising:

a housing;

an infusion cannula extending downwardly away from the housing and capable of receiving an insertion needle;

a septum disposed in the housing;

a passageway under said septum and in fluid communication with said cannula and;

an infusion needle insertable through the septum, the infusion needle capable of penetrating the septum and entering said passageway thereby forming a flow path between the infusion needle and the infusion cannula and wherein the infusion cannula and the infusion needle are aligned on separate non identical axes.

2. The device of claim 1, wherein the infusion cannula and the infusion needle are positioned parallel to one another.

3. The device of claim 1, wherein the infusion cannula and the infusion needle are positioned parallel to one another.

4. The device of claim 1, wherein the infusion cannula and the infusion needle are in different planes relative to each other.

5. The device of claim 1, wherein the infusion cannula and the infusion needle are at oblique angles relative to each other.

6. The device of claim 1, wherein the infusion needle is disposed in the center of the connecting hub and the infusion cannula is disposed off-center to the housing.

7. The device of claim 1, wherein the infusion cannula and the infusion needle have different diameters.

8. The device of claim 1, wherein the connecting hub is rotatable with respect to the housing.

9. The device of claim 8, wherein the connecting hub is rotatable 360 degrees with respect to the housing.

10. The device of claim 8, wherein the connecting hub is rotatable less than 360 degrees with respect to the housing.

11. The device of claim 1, wherein the connecting hub is attachable to the housing at different rotational positions.

12. The device of claim 1, wherein the connecting hub further comprises:

at least one flexible handle configured to attach the connecting hub onto the housing.

13. The device of claim 1, wherein the housing further comprises:

an adhesive bandage extending therefrom for holding the housing against the patient'"'"'s skin.

14. The device of claim 1, wherein the connecting hub further comprises:

a fluid infusion tube extending from the connecting hub, the fluid infusion tube being in fluid communication with the infusion needle.

15. The device of claim 1, wherein the septum is pre-slit and wherein the infusion needle is a plastic tube.

16. A method of infusing fluid into a patient, comprising:

positioning an infusion housing, having a passageway, against a patient'"'"'s skin, such that an infusion cannula extends downwardly away from the infusion housing penetrates the patient'"'"'s skin along a first axis, thereby providing a pathway for infusate into the patient; and

inserting an infusion needle into the housing along an axis adjacent, but not identitical with said first axis; and

causing infusate to pass through said insertion needle, into said passageway and then into said infusion cannula.

17. The method of claim 16, wherein the passageway in the infusion housing is a lateral passageway.