Drug Delivery System With Temperature-Sensitive Control

Patent metadata

Field	Value
Publication number	US-2016354555-A1
Application number	US-201414913928-A
Country	US
Kind code	A1
Filing date	Oct 22, 2014
Priority date	Oct 24, 2013
Publication date	Dec 8, 2016
Grant date	—

Abstract

A drug delivery system includes a reservoir and a drug delivery device coupled to the reservoir. The drug delivery device also may include at least one temperature-sensitive component and a lock having locked and unlocked states. The system further includes an output device, and a controller coupled to the lock and the output device. The controller may also include a temperature sensor, or may be coupled to the temperature sensor. The controller is programmed or configured to determine if the temperature of a drug in the reservoir or of the temperature-sensitive component exceeds an upper limit or is below a lower limit, and to activate the lock in either event. The controller is also programmed or configured to determine, directly or indirectly, if the temperature subsequently is between the upper and lower limits, and to unlock lock as a consequence.

First claim

1 . A drug delivery system comprising:
a reservoir adapted to contain a drug; a drug delivery device coupled to the reservoir to deliver a drug from the reservoir, and comprising a lock having a locked state wherein delivery of the drug from the reservoir is limited and an unlocked state wherein delivery of the drug from the reservoir is not limited; a temperature sensor; an output device; and a controller coupled to the lock, the temperature sensor, and the output device, the controller being programmed: (a) to determine if the temperature of a drug disposed in the reservoir exceeds an upper limit, and if the temperature exceeds the upper limit, to activate the output device at least once and to place the lock in the locked state; (b) to determine if the temperature of a drug disposed in the reservoir is below a lower limit, and if the temperature is below the lower limit, to activate the output device at least once and to place the lock in the locked state; and (c) to determine if the temperature of the drug is between the upper limit and the lower limit subsequent to (b), and if the temperature is between the upper limit and the lower limit, to place the lock in the unlocked state.

2 . The drug delivery system according to claim 1 , wherein the reservoir is adapted to be removed from the drug delivery system, and the controller is programmed to determine if the reservoir has been removed and replaced with another reservoir adapted to contain a drug subsequent to (a), and if the reservoir has been removed and replaced with another reservoir, to place the lock in the unlocked state.

3 . The drug delivery system according to claim 1 , further comprising a heater coupled to the controller and proximate to at least one of the reservoir and the drug delivery device,
the controller programmed to activate the heater if the temperature of the drug is below the lower limit, and to deactivate the heater if the temperature of the drug is between the upper and lower limits.

4 . The drug delivery system according to claim 1 , wherein the controller is programmed to determine if temperature sensor is accurate prior to determining if the temperature of a drug disposed in the reservoir is above the upper limit, below the lower limit, or between the upper and lower limits.

5 . The drug delivery system according to claim 4 , wherein the controller is programmed to adjust a determination of a temperature if the temperature sensor is not accurate.

6 . The drug delivery system according to claim 1 , wherein the reservoir comprises a pre-filled container.

7 . The drug delivery system according to claim 6 , wherein the pre-filled container is a pre-filled syringe or a pre-filled cartridge.

8 . The drug delivery system according to claim 1 , wherein the reservoir comprises an opening and a plunger moveable within the reservoir relative to the opening to force drug out of the reservoir through the opening, and the drug delivery device comprises a plunger arm having a first end in contact with the plunger, and an actuator coupled to the plunger arm.

9 . The drug delivery system according to claim 8 , wherein the actuator comprises an assembly of an electric motor coupled to the plunger arm and a battery coupled to the electric motor.

10 . The drug delivery system according to claim 8 , wherein the reservoir comprises a cannula in fluid communication with the opening.

11 . The drug delivery system according to claim 1 , wherein the temperature sensor comprises at least one of a resistance temperature detector, a thermocouple, an infrared thermopile, and an assembly comprising a thermally-sensitive label and an optical detector.

12 . The drug delivery system according to claim 1 , wherein the temperature sensor is on-board the controller.

13 . The drug delivery system according to claim 1 , wherein the reservoir comprises a cannula in fluid communication with the reservoir, and the temperature sensor is coupled to the cannula.

14 . The drug delivery system according to claim 13 , wherein the cannula comprises a needle.

15 . The drug delivery system according to claim 1 , wherein a drug or medicament is disposed in the reservoir, and the reservoir comprises an opening and a plunger moveable within the reservoir relative to the opening to force drug out of the reservoir through the opening, and the temperature sensor is attached to the plunger.

16 . The drug delivery system according to claim 15 , wherein the temperature sensor is in direct contact with the drug.

17 . The drug delivery system according to claim 16 , wherein the temperature sensor is disposed on an inner surface of the plunger in direct contact with the drug.

18 . The drug delivery system according to claim 15 , wherein the temperature sensor is not in direct contact with the drug.

19 . The drug delivery system according to claim 18 , wherein the temperature sensor is disposed within the plunger.

20 . The drug delivery system according to claim 3 , wherein the heater comprises at least one of an electrical heater, a chemical heater, and a selectable coupling to a heat source.

21 . The drug delivery system according to claim 20 , wherein the electrical heater comprises at least one of a resistive heater and a thermoelectric heater.

22 . The drug delivery system according to claim 20 , wherein the heat source comprises at least one of the controller and a patient to which the drug delivery system is attached.

23 . The drug delivery system according to claim 1 , wherein the output device comprises at least one of a display, a light and a speaker.

24 . The drug delivery system according to claim 1 , wherein a drug or medicament is disposed in the reservoir.

25 . A drug delivery system comprising:
a reservoir adapted to contain a drug; a drug delivery device coupled to the reservoir to deliver a drug from the reservoir, and comprising at least one temperature-sensitive component and a lock having a locked state wherein delivery of the drug from the reservoir is limited and an unlocked state wherein delivery of the drug from the reservoir is not limited; a temperature sensor; an output device; and a controller coupled to the lock, the temperature sensor, and the output device, the controller being programmed: (a) to determine if the temperature of the at least one temperature-sensitive component exceeds an upper limit, and if the temperature exceeds the upper limit, to activate the output device at least once and to place the lock in the locked state; (b) to determine if the temperature of the at least one temperature-sensitive component is below a lower limit, and if the temperature is below the lower limit, to activate the output device at least once and to place the lock in the locked state; and (c) to determine if the temperature of the at least one temperature-sensitive component is between the upper limit and the lower limit subsequent to (b), and if the temperature is between the upper limit and the lower limit, to place the lock in the unlocked state.

26 . The drug delivery system according to claim 25 , wherein the at least one temperature-sensitive component comprises a battery.

27 . The drug delivery system according to claim 25 , wherein a drug or medicament is disposed in the reservoir.

28 . A drug delivery system comprising:
a reservoir adapted to contai

Assignees

• Amgen Inc

Inventors

• Gibson Scott R
• Foster Lee
• Busby Donald
• Toy Stephanie
• Krishna Suhas
• Tan-Malecki Francisca
• Tamtoro Ferry

Classifications

• A61P43/00

  Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title

• A61M2205/0227

  Materials having sensing or indicating function, e.g. indicating a pressure increase · CPC title

• A61M5/172

  electrical or electronic {(A61M5/16804, A61M5/16831 take precedence)} · CPC title

• A61M2205/502

  User interfaces, e.g. screens or keyboards · CPC title

• A61M5/2033

  Spring-loaded one-shot injectors with or without automatic needle insertion (multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287) · CPC title