MODULAR ADMINISTRATION SYSTEM

• US 20100152661A1
• Filed: 08/14/2009
• Published: 06/17/2010
• Est. Priority Date: 03/02/2007
• Status: Active Grant

• Current Assignee: Ypsomed AG (Ypsomed Holding AG)
• Original Assignee: TecPharma Licensing AG (Ypsomed Holding AG)
• Inventors: Clavadetscher, Jürg, Hommann, Edgar
• Granted Patent: US 8,679,070 B2
• Time in Patent Office: Days
• US Class Current: 604/150
• CPC Class Codes: A61M 2005/14264 with means for compensating influence from the environment
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14526 the piston being actuated by fluid pressure
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

A modular administration appliance including a reusable base unit and a replaceable cartridge detachably connected to the base unit and including a container for a substance and a rotatable transmission element, the base unit including a drive device by which a rotary movement is transmitted between the base unit and the cartridge, and a driving element displaceable in a rotary movement about a rotational axis by the drive device, wherein a rotation of the transmission element causes the ejection of at least a portion of the substance from the container. In some embodiments, the transmission element at least partially surrounds the drive device, and/or the drive element and the transmission element are detachably connectable to each other for transmitting the rotational movement.

Claims

1. A modular administration device for administering a medicinal substance, the device comprising:

a reusable base unit, and

a replaceable cartridge detachably connected to the base unit and comprising a container for the substance and a rotatable transmission element, wherein

the base unit comprises a drive device by which a rotary movement is transmitted between the base unit and the cartridge, and a driving element displaceable in a rotary movement about a rotational axis by the drive device, and wherein

a rotation of the transmission element causes at least a portion of the substance to move from the container.

2. The modular administration device of claim 1, wherein the transmission element at least partially surrounds the drive device.

3. The modular administration device of claim 2, wherein the drive element and the transmission element are detachably connectable to each other for transmitting the rotational movement.

4. The modular administration device of claim 1, wherein the drive element and the transmission element are detachably connectable to each other for transmitting the rotational movement.

5. An appliance for administering a fluid product, comprising:

a reusable base unit comprising a drive device, and

a replaceable cartridge detachably connectable with the base unit and comprising a product container for the fluid product, wherein

the base unit further comprises a drive element able to be displaced by the drive device into a rotational movement around a rotational axis, and

the cartridge further comprises a rotatable transmission element complementary to the drive element such that a rotation of the transmission element causes an ejection of the fluid product from the product container, and

the drive element and the transmission element are able to be detachably connected to each other for transmitting the rotational movement.

6. The appliance according to claim 5, wherein the drive element and the transmission element are able to be shifted relative to each other along the rotational axis.

7. The appliance according to claim 6, wherein the transmission element is guided via a thread such that a rotational movement of the transmission element leads to a screw movement of the transmission element in the cartridge.

8. The appliance according to claim 5, wherein the transmission element comprises a sleeve with an inside, the sleeve at least partially enveloping the drive element when the cartridge is connected with the base unit, and engaging the drive element on the inside.

9. The appliance according to claim 8, wherein the inside of the sleeve has one or more longitudinal grooves or longitudinal ribs extending generally parallel to the rotational axis, and wherein the outside of the drive element has a structure suitable for engaging the longitudinal grooves or longitudinal ribs.

10. The appliance according to claim 9, wherein the transmission element is able to be moved between an initial position assumed by the transmission element before evacuation of the product container begins and a final position assumed by the transmission element after the product container has been emptied, and wherein the transmission element envelops at least part of the drive device, at least in the initial position.

11. The appliance according to claim 10, wherein the drive device comprises an electric motor and a transmission connected thereto to transmit a drive movement of the motor into a rotational movement of the drive element, wherein the motor and the transmission are arranged one in back of the other along the rotational axis, and wherein the transmission element envelops at least a part of the transmission, at least in the initial position.

12. The appliance according to claim 5, wherein the drive device is accommodated at least in part in a finger-like area of the base unit extending along the rotational axis, and wherein the cartridge, when assembled, at least partially envelops the finger-like area.

13. The appliance according to claim 12, wherein the base unit comprises a holding area that extends laterally displaced relative to the finger-like area, and wherein the cartridge, when secured to the base unit, comprises an area arranged between the finger-like area and the holding area in a lateral direction to achieve a torsion-resistant connection between the cartridge and the base unit.

14. The appliance according to claim 5, wherein the cartridge comprises a fluid reservoir with a movable plug, and wherein the transmission element is connected with the plug such that rotating the transmission element advances the plug.

15. The appliance according to claim 14, wherein the plug is fabricated as a single piece with the transmission element.

16. The appliance according to claim 14, wherein the fluid reservoir is a hydraulic reservoir containing a hydraulic fluid, and the cartridge additionally comprises a hydraulic connection between the hydraulic reservoir and a displacement reservoir that acts in conjunction with the product container, wherein the hydraulic reservoir, the hydraulic connection and the displacement reservoir are arranged such that the advancing movement of the plug moves the hydraulic fluid from the hydraulic reservoir through the hydraulic connection and into the displacement reservoir, thereby causing the ejection of the fluid product from the product container.