Drug delivery device and transfer station

Patent metadata

Field	Value
Publication number	US-11433182-B2
Application number	US-201916422840-A
Country	US
Kind code	B2
Filing date	May 24, 2019
Priority date	Dec 6, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

A drug delivery device comprises first and second liquid drug reservoirs and first and second outlet ports. A drive is configured for expelling a first liquid drug from the first reservoir to the first outlet port and for expelling a second liquid drug from the second reservoir to the second outlet port. A memory is provided that contains a drug dosing scheme specifying a desired liquid drug type, and at least one sensor is provided that detects information concerning the type of liquid drug contained in the first and/or second reservoir. A processor receives the information from the at least one sensor and thereby determines the type of liquid drug retained in the first reservoir and/or the second reservoir, and uses the drug dosing scheme and the determined type of liquid drug to operate the drive. Associated devices this disclosure and methods are also disclosed.

First claim

What is claimed is:

1. A method for operating a drug delivery device having first and second liquid drug reservoirs, first and second outlet ports, and a drive configured for expelling liquid drug from the first and second reservoirs to first and second outlet ports, respectively, the method comprising:
storing in a memory a drug dosing scheme specifying a desired liquid drug type;
using a sensor to analyze at least one of a physical or chemical property of the first and/or second liquid drug to thereby detect information concerning the type of liquid drug contained in the first and/or second reservoir; and
using a processor to:
(i) receive the information from the sensor and thereby determine the type of liquid drug retained in the first reservoir and/or the second reservoir, and
(ii) use the drug dosing scheme and the determined type of liquid drug to operate the drive,

wherein the method further comprises using the processor to:
operate the drive to deliver the liquid drug from the first reservoir to the first outlet port;
determine the amount of the drug in the first reservoir currently available to the user;
compare the determined amount with the threshold criterion; and
in response to the comparison, when the determined amount is lower than or equal to the threshold criterion, operate the drive to deliver the liquid drug from the second reservoir to the second outlet port, the threshold criterion specifying a residual availability of the drug provided in the first reservoir.

2. The method of claim 1 , further comprising using the processor to operate the drive to deliver the desired liquid drug from the first reservoir or second reservoir to the respective first or second outlet port.

3. The method of claim 1 , wherein the stored drug dosing scheme specifies that the first reservoir must contain the desired liquid drug type, the method further comprising:
when the first liquid drug determined to be in the first reservoir does not correspond to the desired liquid drug type, the processor provides a warning signal via a user interface; and
the processor prevents delivery from the first reservoir to the first outlet port.

4. The method of claim 1 , wherein the stored drug dosing scheme specifies that the first reservoir or the second reservoir must contain the desired liquid drug type, the method further comprising:
when neither the first liquid drug nor the second liquid determined to be in the first and second reservoirs, respectively, corresponds to the desired liquid drug, the processor provides a warning signal via a user interface; and
the processor prevents delivery from the first and second reservoirs.

5. The method of claim 1 , further comprising delivering the same liquid drug from the first and second reservoirs.

6. The method of claim 1 , further comprising:
assigning identifiers to the first reservoir and the second reservoir specifying the type of liquid drug retained therein; and
determining the type of the liquid drug retained in the first reservoir and the second reservoir by using the sensor to read the identifiers.

7. The method of claim 1 , wherein the step of using the sensor comprises analyzing a physical property of the first and/or second liquid drug.

8. The method of claim 1 , wherein the first and second liquid drugs are different, the method further comprising maintaining separate (i) a first fluid pathway from the first reservoir to the first outlet to a user from (ii) a second fluid pathway from the second reservoir to the second outlet to the user.

9. A drug delivery device, comprising:
first and second liquid drug reservoirs;
first and second outlet ports;
a drive configured for expelling a first liquid drug from the first reservoir to the first outlet port and for expelling a second liquid drug from the second reservoir to the second outlet port;
a memory having a drug dosing scheme specifying a desired liquid drug type;
a sensor configured to analyze at least one of a physical or chemical property of the first and/or second liquid drug to thereby obtain information concerning the type of liquid drug contained in the first and/or second reservoir; and
a processor configured to:
(i) receive the information from the sensor and thereby determine the type of liquid drug retained in the first reservoir and/or the second reservoir, and
(ii) use the drug dosing scheme and the determined type of liquid drug to operate the drive,

wherein the first and second reservoirs are configured to deliver the same liquid drug and wherein the processor is further configured to:
operate the drive to deliver the liquid drug from the first reservoir to the first outlet port;
determine the amount of the drug in the first reservoir currently available to the user;
compare the determined amount with the threshold criterion; and
in response to the comparison, when the determined amount is lower than or equal to the threshold criterion, operate the drive to deliver the liquid drug from the second reservoir to the second outlet port, the threshold criterion specifying a residual availability of the drug provided in the first reservoir.

10. The drug delivery device of claim 9 , wherein the processor is configured to operate the drive to deliver the desired liquid drug from the first reservoir or second reservoir to the respective first or second outlet port.

11. The drug delivery device of claim 9 , wherein the drug dosing scheme specifies that the first reservoir must contain the desired liquid drug type, wherein when the first liquid drug determined to be in the first reservoir does not correspond to the desired liquid drug type, the processor is configured to provide a warning signal via a user interface, wherein the processor is further configured to prevent delivery from the first reservoir to the first outlet port.

12. The drug delivery device of claim 9 , wherein the drug dosing scheme specifies that the first reservoir or the second reservoir must contain the desired liquid drug type, wherein when neither the first liquid drug nor the second liquid drug determined to be in the first and second reservoirs, respectively, corresponds to the desired liquid drug, the processor is configured to provide a warning signal via a user interface, wherein the processor is further configured to prevent delivery from the first and second reservoirs.

13. The drug delivery device of claim 9 , wherein the first reservoir and the second reservoir have assigned identifiers specifying the type of liquid drug retained therein, the determination of the type of the liquid drug retained in the first reservoir and the second reservoir comprising the sensor reading the identifiers.

14. The drug delivery device of claim 9 , wherein the sensor is configured to analyze at least one chemical property of the first and/or second liquid drug.

15. The drug delivery device of claim 9 , comprising (i) a first fluid pathway from the first reservoir to the first outlet to a user and (ii) a second fluid pathway from the second reservoir to the second outlet to the user, wherein the first and second fluid pathways are maintained separate.

16. A method of operating a system having a transfer station and a drug delivery device, the method comprising:
analyzing by the transfer station a liquid drug contained in a supply container to analyze at least one of a physical or chemical property of the liquid drug to thereby determine the type of liquid drug retained in the supply container;
transferring the liquid drug from the supply container to a first reservoir of the drug delivery device;
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Assignees

• Roche Diabetes Care Inc

Inventors

• Deck Frank
• List Hans

Classifications

• A61M2005/14208

  with a programmable infusion control system, characterised by the infusion program · CPC title

• A61J2205/00

  General identification or selection means · CPC title

• A61M2205/582

  by tactile feedback · CPC title

• G16H20/17

  delivered via infusion or injection · CPC title

• A61J2205/60

  using magnetic or electronic identifications, e.g. chips, RFID, electronic tags · CPC title