HYBRID AMBULATORY INFUSION PUMPS

• US 20160089491A1
• Filed: 09/29/2015
• Published: 03/31/2016
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: PerQFlo, LLC
• Inventors: Smith, Roger E.
• Granted Patent: US 10,159,786 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8243 by induction
• CPC Class Codes: A61M 2209/01 Remote controllers for specific apparatus
• 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 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons

Abstract

Ambulatory infusion pumps, durable assemblies, and disposable assemblies, including energy sources, reservoirs, baseplates, and related components therefor, as well as component combinations and related methods.

Claims

1. An infusion pump system, comprising:

a durable assembly including an energy supply; and

a disposable assembly including a medicament reservoir;

wherein the durable assembly and the disposable assembly are configured to be attached to one another in such a manner that energy needed to dispense medicament from the medicament reservoir is supplied by the energy supply and transferred from the durable assembly to the disposable assembly without direct mechanical coupling or electrical connection.

2. An infusion pump system as claimed in claim 1, wherein

the energy is transferred through electromagnetic torque coupling.

3. An infusion pump system as claimed in claim 1, wherein

the durable assembly includes a coil assembly that receives energy from the energy supply;

the disposable assembly includes a magnetic motor rotor positioned adjacent to the coil assembly; and

energization of the coil causes the motor rotor to rotate.

4. An infusion pump system as claimed in claim 3, wherein

the coil assembly and the magnetic motor rotor are separated by a gap.

5. An infusion pump system as claimed in claim 4, wherein

the durable assembly includes a housing and a portion of the housing is located in the gap.

6. An infusion pump system as claimed in claim 4, wherein

the disposable assembly includes a baseplate and a cover and a portion of the cover is located in the gap.

7. An infusion pump system as claimed in claim 4, wherein

the gap is 0.5 mm to 2.0 mm.

8. An infusion pump system as claimed in claim 3, wherein

the medicament reservoir includes a barrel and a plunger within the barrel;

and

the magnetic motor rotor is mechanically coupled to the plunger.

9. An infusion pump system as claimed in claim 1, wherein

the energy supply includes a battery.

10. An infusion pump system as claimed in claim 9, wherein

the battery comprises either one or more primary cell batteries, or one or more rechargeable batteries.

11. A method, comprising the step of:

securing an infusion pump durable assembly with an energy supply to an infusion pump disposable assembly with a medicament reservoir such that energy from the energy supply is transferred to the disposable assembly without direct mechanical coupling or electrical connection and transformed into mechanical forces that move a plunger within the reservoir.

12. A method as claimed in claim 11, wherein

the energy supply includes one or more batteries.

13. A method as claimed in claim 11, wherein

the durable assembly includes a coil assembly;

the disposable assembly includes a magnetic motor rotor; and

the step of securing the infusion pump durable assembly to the infusion pump disposable assembly comprises securing the infusion pump durable assembly to the infusion pump disposable assembly such that there is a gap between coil assembly and the magnetic rotor.

14. A method as claimed in claim 13, wherein

a portion of at least one of the durable assembly and the disposable assembly is located within the gap.

15. A method as claimed in claim 11, wherein

energy is transferred from the energy supply to the disposable assembly through electromagnetic torque coupling.

16. A disposable assembly, comprising:

a baseplate;

a medicament reservoir on the baseplate;

a plunger moveable within the reservoir;

a motor rotor that receives electromagnetic energy from outside the disposable assembly; and

a gear train that transforms rotation of the motor rotor into mechanical forces that move the plunger.

17. A disposable assembly as claimed in claim 16, wherein

the disposable assembly does not include a motor stator.

18. A disposable assembly as claimed in claim 16, wherein

the motor rotor comprises a disc that is parallel to the baseplate.

19. A disposable assembly as claimed in claim 16, wherein

the motor rotor is disc-shaped.