ADAPTER FOR AN INJECTION APPLIANCE

• US 20080125755A1
• Filed: 06/07/2007
• Published: 05/29/2008
• Est. Priority Date: 12/08/2004
• Status: Abandoned Application

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Jost, Stefan, Peter, Daniel, Sigrist, Reto
• Application Number:
  US11/759,640
• Publication Number:
  US 20080125755A1
• Time in Patent Office: Days
• US Class Current: 604/535
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 39/12 for joining a flexible tube to a rigid attachment
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod

Abstract

An adapter for use with an appliance for administering an injectable product, the adapter serving to create a product connection between a catheter and a product container that can be inserted into the appliance, and including a thread for screwing the adapter to the appliance, a stop for fixing the container in the longitudinal direction of the thread, an attachment piece to which the catheter may be connected, and a product channel that extends through the attachment piece and the thread.

Claims

1. An adapter for an appliance for administering an injectable product, the adapter comprising:

a thread for connecting the adapter to the appliance,

a stop for securing a container in the longitudinal direction of the thread,

an attachment piece suitable for connecting a catheter, and

a product channel extending through the attachment piece and the thread, and

a retaining device by which the container can be connected to the adapter and whereby the container and adapter may not be relatively turned.

2. An injection device comprising:

a housing with a receiving compartment into which a container for an injectable product can be inserted,

a plunger in the container wherein said plunger can be displaced in an advancing direction toward an outlet of the container,

a drive device with a plunger rod to which the plunger is connected upon insertion of the container into the receiving compartment, and

an adapter connectable to the housing for fixing the container in the receiving compartment and for forming a product connector between the container and a catheter, wherein the adapter comprises a retaining device by which the container can be connected to the adapter such that the container and adapter cannot be relatively turned.

3. An adapter for an appliance for administering an injectable product, the adapter serving to create a product connection between a catheter and a product container that can be inserted into the appliance and comprising:

a) a thread for screwing the adapter to the appliance,

b) fixing means for fixing the container in the longitudinal direction of the thread,

c) an attachment piece to which the catheter is connected or which is suitable for connection to the catheter, and

d) a product channel extending through the attachment piece and the thread, and

e) a retaining device by which the container can be connected to the adapter in a manner secured against twisting.

4. The adapter according to claim 3, wherein the retaining device holds the container suspended on the adapter.

5. The adapter according to claim 3, wherein the retaining device comprises a clamping part made of an elastic material and by which the container is held by a clamping action.

6. The adapter according to claim 3, further comprising a clamping means on an inner jacket of a sleeve part of the adapter, said clamping means pressing elastically against an outer jacket of a container inserted into the sleeve part.

7. The adapter according to claim 3, wherein the fixing means forms a limit stop protruding inwardly from an inner jacket of a sleeve part of the adapter.

8. The adapter according to claim 3, wherein the adapter comprises a securing part with the thread and a retaining part movable relative to the securing part and guided rectilinearly by the securing part in the longitudinal direction of the screwing-in axis of the thread, the retaining device connected to the retaining part.

9. The adapter according to claim 8, wherein the retaining part is rectilinearly displaceable relative to the securing part between two limit-stop positions in the direction of the central axis of the thread.

10. The adapter according to claim 3, wherein the attachment piece is formed by a sleeve pressed into the adapter.

11. The adapter according to claim 3, wherein the thread of the adapter has a pitch that is smaller than a pitch of a connecting thread between a plunger received in the container and an appliance plunger rod to be screwed onto the plunger.

12. An injection or infusion appliance, comprising:

a) a housing with a receiving compartment into which a container for an injectable product can be inserted, and a plunger for administering the product is received in the container in such a way that said plunger can be displaced in an advancing direction towards an outlet of the container,

b) a drive device with a plunger rod onto which the plunger is screwed upon insertion of the container into the receiving compartment, and

c) an adapter which, to close the receiving compartment, is screwed onto the housing in the longitudinal direction of the plunger rod toward said plunger rod, and which serves for fixing the container in the receiving compartment and as a product connection between the container and a catheter, wherein

d) the adapter comprises a retaining device by which the container can be connected to the adapter in a manner secured against twisting.