Container adapter, delivery assembly and method of delivering a liquid to a patient

Patent metadata

Field	Value
Publication number	US-11529467-B2
Application number	US-201816760198-A
Country	US
Kind code	B2
Filing date	Nov 2, 2018
Priority date	Nov 2, 2017
Publication date	Dec 20, 2022
Grant date	Dec 20, 2022

Abstract

A container adapter for a medical delivery device is disclosed. The medical delivery device has a container seat for holding a container, a dosage chamber, a dosing mechanism and a lock mechanism adapted to prevent operation of the dosing mechanism when no container is held in the container seat and to allow operation of the dosing mechanism when the container is held in the container seat. The container adapter includes an adapter container seat arranged to hold a container, a joint structure arranged to be detachably positioned in the container seat of the medical delivery device and to connect the adapter container seat to the dosing mechanism, and an unlock member adapted to activate the lock mechanism. A delivery assembly and a method of delivering a liquid to a patient from different containers is also disclosed.

First claim

The invention claimed is:

1. A container adapter for a medical delivery device having a container seat for holding a container in a predefined position, a dosage chamber, a dosing mechanism to transfer a liquid from the container held in the container seat to the dosage chamber and a lock mechanism adapted to prevent operation of the dosing mechanism when no container is held in the container seat and to allow operation of the dosing mechanism when the container is held in the container seat, comprising:
an adapter container seat arranged to hold the container in a predefined position:
a joint structure arranged to be detachably positioned in the container seat of the medical delivery device and to connect the adapter container seat to the dosing mechanism of the medical delivery device when the joint structure is positioned in the container seat of the medical delivery device; and
an unlock member adapted to activate the lock mechanism of the medical delivery device such that operation of the dosing mechanism is allowed when the joint structure is positioned in the container seat of the medical delivery device.

2. The container adapter of claim 1 , wherein the unlock member comprises an abutting surface arranged to contact a push portion of the lock mechanism of the medical delivery device when the container adapter is forwarded into the container seat of the medical delivery device, such that the push portion of the lock mechanism is axially displaced when the container adapter is attached to the medical delivery device.

3. The container adapter of claim 1 , wherein the unlock member comprises an engaging surface arranged to engage behind a pull portion of the lock mechanism of the medical delivery device when the container adapter is forwarded into the container seat of the medical delivery device, such that the pull portion of the lock mechanism is axially displaced when the container adapter is retracted from the medical delivery device.

4. The container adapter of claim 1 , wherein the adapter container seat has a fixation structure adapted to irremovably hold the container in the predefined position.

5. The container adapter of claim 4 , wherein the fixation structure of the adapter container seat preferably has a clip arranged to snap behind a head portion of the container when the container is held in the adapter container seat.

6. The container adapter of claim 1 , comprising an alignment formation arranged to assure that the container adapter is in a predefined orientation relative to the medical delivery device when the joint structure is positioned in the container seat of the medical delivery device.

7. The container adapter of claim 1 , wherein the joint structure is arranged to form an open tight duct between an interior of the container and the dosing mechanism of the medical delivery device when the container is held in the adapter container seat and the joint structure is positioned in the container seat of the medical delivery device.

8. The container adapter of claim 1 , wherein the adapter container seat comprises a spike arranged to penetrate a cap of an opening of the container, when the container is held in the adapter container seat.

9. The container adapter of claim 8 , wherein the spike of the adapter container seat extends in an interior of the adapter container seat.

10. The container adapter of claim 8 , wherein the spike of the adapter container seat comprises a tip.

11. The container adapter of claim 10 , wherein the spike of the adapter container seat comprises a conduit which runs from the tip longitudinally through the spike.

12. The container adapter of claim 1 , further comprising a seal which seals the container seat of the medical delivery device to the joint structure, when the joint structure is positioned in the container seat of the medical delivery device.

13. The container adapter of claim 12 , wherein the joint structure comprises a seal holder in which the seal is tightly arranged.

14. A delivery assembly, comprising:
a container adapter according to claim 1 ; and
a medical delivery device comprising a container seat for holding a container in a predefined position, a dosage chamber, a dosing mechanism to transfer a liquid from the container held in the container seat to the dosage chamber and a lock mechanism adapted to prevent operation of the dosing mechanism when no container is held in the container seat and to allow operation of the dosing mechanism when the container is held in the container seat.

15. The delivery assembly of claim 14 , wherein the container seat of the medical delivery device has a fixation structure adapted to irremovably hold a container in a predefined position and the joint structure of the container adapter is arranged to prevent interaction with the fixation structure of the container seat of the medical delivery device, when the container adapter is held in the container seat of the medical delivery device.

16. The delivery assembly of claim 14 , wherein the lock mechanism of the medical delivery device comprises a push portion and the unlock member of the container adapter comprises an abutting surface, the push portion of the lock mechanism and the abutting surface of the unlock member being arranged to interact when the container adapter is forwarded into the container seat of the medical delivery device, such that the push portion of the lock mechanism is axially displaced when the container adapter is attached to the medical delivery device.

17. The delivery assembly of claim 14 , wherein the lock mechanism of the medical delivery device comprises a pull portion and the unlock member of the container adapter comprises an engaging surface, the pull portion of the lock mechanism and the engaging surface of the unlock member being arranged to inter-engage when the container adapter is forwarded into the container seat of the medical delivery device, such that the pull portion of the lock mechanism is axially displaced when the container adapter is retracted from the medical delivery device.

18. The delivery assembly of claim 14 , comprising a securing element, wherein the container seat of the medical delivery device is decouplably mounted to a delivery orifice of the medical delivery device and the securing element is arranged for preventing unintended decoupling of the container seat from the delivery orifice, when the container adapter is retracted from the medical delivery device, wherein the securing element is a sheet piece having an adhering surface.

19. A method of delivering a liquid to a patient, comprising:
obtaining a first container with a liquid first mixing substance, a second container with a second mixing substance and the delivery assembly according to claim 14 ;
arranging the first container in the adapter container seat of the container adapter of the delivery assembly, positioning the joint structure of the container adapter of the delivery assembly in the container seat of the medical delivery device of the delivery assembly;
withdrawing the first substance from the first container into the dosage chamber of the medical delivery device of the delivery assembly;
retracting the container adapter of the delivery assembly from the medical delivery device of the delivery assembly;
positioning the second container in the container seat of the medical delivery device of the delivery assembly; and
withdrawing the second substance from the second container into the dosage chamber of the medical delivery device of the delivery assembly.

Assignees

• Hoffmann La Roche

Inventors

• Gaillot Maxime
• Leah Roberta
• Reilly Declan
• Hayton Paul
• Ridley Jonathan

Classifications

• A61M5/31596

  comprising means for injection of two or more media, e.g. by mixing · CPC title

• A61J1/2096 Primary

  Combination of a vial and a syringe for transferring or mixing their contents · CPC title

• A61M5/1782 Primary

  Devices aiding filling of syringes in situ (combination of a vial and a syringe for transferring or mixing their contents A61J1/2096, filling of medical containers in general B65B3/003) · CPC title