Infusion set

• US 20070185455A1
• Filed: 05/03/2006
• Published: 08/09/2007
• Est. Priority Date: 02/07/2006
• Status: Active Grant

• Current Assignee: Ypsomed AG (Ypsomed Holding AG)
• Original Assignee: ICU Medical Incorporated
• Inventors: Fangrow, Thomas
• Granted Patent: US 7,892,216 B2
• Time in Patent Office: Days
• US Class Current: 604/164.10
• 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 2025/0246 fixed on the skin having a cover for covering the holding means
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• 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 set comprises a base member (60), an introducer cap (64), and an infusion cap (54). The base member (60) preferably comprises a soft cannula (52) extending from a lower side (118) of the base member (60), and a port (62) on an upper side (92) thereof. The port (62) is configured to be in fluid communication with the cannula (52). The port (62) also comprises a septum (130) adapted to seal the port (62) against unwanted fluid flow. The introducer cap (64) is adapted to be mounted to the base member (60) and has a needle (66) adapted to extend through the septum (130) and said soft cannula (52) in an assembled position. The infusion cap (54) comprises a lumen (160) adapted to receive an elongate flexible tube (162). The infusion cap (54) also comprises a hard cannula (170) adapted to be inserted through the septum (130) and to place said soft cannula (52) in fluid communication with said lumen (160).

Claims

1. A base of an infusion set comprising:

a substantially planar member having upper and lower sides;

a base cannula extending downwardly from the lower side;

a notched outer rim; and

a port extending upwardly from the upper side, the port being in fluid communication with the base cannula, the port comprising;

a septum adapted to seal said port from fluid communication therethrough, a funnel-shaped section disposed between the septum and the base cannula, wherein the septum is configured to extend downward from the port to the slanted walls of the funnel-shaped section, thereby supporting the septum and resisting downward shear when a member is pressed against the septum; and

an adhesive layer mounted to the lower side of the base;