CONNECTION SYSTEM FOR CONNECTING A FLUID LINE TO A FLUID RESERVOIR

• US 20110060312A1
• Filed: 08/26/2010
• Published: 03/10/2011
• Est. Priority Date: 02/29/2008
• Status: Abandoned Application

• Current Assignee: Roche Diagnostics International Ltd., Roche Diagnostics International AG (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG)
• Inventors: Scheurer, Simon
• Application Number:
  US12/869,217
• Publication Number:
  US 20110060312A1
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2055 having gripping means
• CPC Class Codes: A61J 1/2065 having aligning and guiding means
• CPC Class Codes: A61M 2039/1016 Unlocking means providing a secure or comfortable disconnection
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1066 having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/12 for joining a flexible tube to a rigid attachment
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons

Abstract

A connection system for connecting a fluid line to a fluid reservoir located within a device by way of a cannula and a method thereof are disclosed. The connecting system may include a cannula holder, a movable cannula cover, and lock for the cover. The system may further include a receiving element for receiving the cannula holder; the receiving element may have a release adapted for interaction with the lock. The release and the lock can be arranged to release the cannula cover by the release interacting with the lock, so that the cannula cover is movable by the inserting force to expose the cannula when the cannula holder is inserted into the receiving element. Thus, a connection system is provided for easy and secure connection without danger of injury by the cannula or staining of the cannula.

Claims

1. A connection system for connecting a fluid line to a fluid reservoir located within a device by way of a cannula, comprising:

a cannula holder holding the cannula and comprising a movable cannula cover and a lock for said cover which prevents the movement of the cannula cover in a first state covering the cannula;

a receiving element which receives the cannula holder, the receiving element being adapted for fixation to the device or the receiving element forming part of the device, said receiving element comprising a release which interacts with the lock, and wherein

the release and the lock are arranged to release the cannula cover by said release interacting with the lock, so that the cannula cover is movable by the inserting force to expose the cannula when the cannula holder is inserted into the receiving element, so that the cannula cover is in a second state exposing the cannula when the cannula holder is inserted within the receiving element.

2. A connection system according to claim 1 wherein as the cannula holder is removed from the receiving element the cannula cover is moved by an energy storage device in a direction opposite to the movement during insertion.

3. A connection system according to claim 1 wherein the cannula cover is held slidably within the cannula holder for a sliding translation movement in longitudinal direction of the cannula.

4. A connection system according to claim 1 wherein the cannula cover is held within the cannula holder by a guide imparting a rotational screw-in and screw-out movement to said cannula cover within the cannula holder during the insertion and the removing of the cannula holder from the receiving element.

5. A connection system according to claim 1 wherein the lock comprise a catch on the cannula cover which locks into a recess of the cannula holder and the release comprises a rib within the receiving element which releases the catch from the recess.

6. A connection system according to claim 5 wherein the catch is a two-stepped catch comprising a first block-shaped step and a second step which is held by an elastically deformable tongue.

7. A connection system according to claim 1 comprising a blocking element and an unblocking element for releasably blocking the cannula holder within the receiving element and in particular comprising unblock provided for one-handed operation of the means.

8. A connection system according to claim 1 wherein the receiving element is part of a medical device and in particular part of an insulin pump.

9. A connection system according to claim 1 wherein the cannula holder is essentially L-shaped and wherein the cannula is held essentially in a 90 degree angle to the line exiting the cannula holder.

10. A connection system according to claim 8 wherein the receiving element is mounted to the device such that it swivels about an axis for opening a chamber adapted to receive the liquid reservoir.

11. A medical pumping device with a receiving element according to claim 1.

12. A medical pumping device according to claim 11 which is a portable medication pump.

13. A medical pumping device according to claim 11 which is an insulin pump.

14. A connection system according to claim 2 wherein the energy storage device is a coil spring.

15. A method of connecting a fluid line to a fluid reservoir located within a device by way of a cannula, comprising utilizing the connecting system of claim 1.