Subcutaneous infusion device

• US 6,123,690 A
• Filed: 03/20/1998
• Issued: 09/26/2000
• Est. Priority Date: 03/20/1998
• Status: Expired due to Term

• Current Assignee: Unomedical A/S
• Original Assignee: Maersk Medical AS
• Inventors: Mejslov, Jesper
• Primary Examiner(s): Coggins, Wynn Wood
• Assistant Examiner(s): KENNEDY, SHARON E
• Application Number:
  US09/045,756
• Time in Patent Office: 921 Days
• Field of Search: 604/167, 604/174, 604/178, 604/179, 604/180, 604/283, 604/905, 604/414, 604/256, 128/DIG. 26
• US Class Current: 604/533
• CPC Class Codes: A61M 2005/1587 suitable for being connected to an infusion line after insertion into a patient
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/14 for connecting tubes having sealed ends needle sets A61M5/162; having valves closing automatically on disconnection of line A61M39/26
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: Y10S 128/26 Cannula supporters

Abstract

The invention relates to a subcutaneous infusion device comprising: a housing, a flow channel within the housing, a cannula extending from the housing and being in flow communication with the flow channel, a self-sealing septum covering the flow channel, a connector for delivery of fluid into the flow channel, a needle on the connector for penetrating the self-sealing septum covering the flow channel in the housing, a guide means for guiding the connector with the needle into a correct position in relation to the housing, where the guide means has incorporated means for interlocking the connector and the housing. Hereby a simpler and easier operable product is obtained.

Claims

1. A subcutaneous infusion device comprising:

a housing;

a flow channel within the housing;

a cannula extending from the housing and being in flow communication with the flow channel;

a connector having a needle and adapted for delivery of fluid into the flow channel;

a guide element for guiding the connector with the needle into a correct position in relation to the housing;

said housing and said connector having respective guide surfaces arranged on a portion thereof and forming said guide means;

said guide surface on said housing defining a recessed portion of said housing extending along said flow channel;

said guide surface on said connector extending along said needle;

said guide surfaces including means for interlocking said connector and said housing upon insertion of said connector portion in said recessed portion;

said connector portion includes an elongate flexible element having a barb;

said recessed portion having a locking edge for interacting with said barb on the elongate flexible element; and

wherein the elongated flexible element is placed so as to cover the needle in order to prevent injury thereby.

2. A subcutaneous infusion device as claimed in claim 1, wherein the elongated flexible element includes a bending area adapted to bring the barb out of engagement upon effecting a pressure on the flexible element thereby pivoting the flexible element.