Connection and alignment detection systems and methods

• US 9,610,405 B2
• Filed: 03/08/2013
• Issued: 04/04/2017
• Est. Priority Date: 12/30/2009
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Bente, IV, Paul F., Hanson, Ian B.
• Primary Examiner(s): Stigell, Theodore
• Assistant Examiner(s): KOO, BENJAMIN K
• Application Number:
  US13/791,773
• Publication Number:
  US 20130190683A1
• Time in Patent Office: 1,488 Days
• Field of Search: 604 67, 604131, 604151, 604216, 604506
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2205/3389 Continuous level detection A61M2205/3393 takes precedence
• 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 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/6027 Electric-conductive bridges closing detection circuits, with or without identifying elements, e.g. resistances, zener-diodes
• CPC Class Codes: A61M 2205/6036 characterised by physical shape, e.g. array of activating switches
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 2205/6081 Colour codes
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/1684 by detecting the amount of infusate remaining, e.g. signalling end of infusion
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/5086 for indicating if defective, used, tampered with or unsterile
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

A medical device includes a first housing portion (FHP) and a second housing portion (SHP) configured to be to be movable relative to each other from a first position to operatively engage at a second position to couple at least one of a drive device and a needle-inserting device supported by one of the FHP and the SHP to a reservoir supported by the other of the FHP and the SHP. Electronic circuitry configured to detect at least one of a first magnetic interaction between a magnet and at least one of a first magnetically attractive material and a first magnet-responsive device and a second magnetic interaction between the magnet and at least one of a second magnetically attractive material and a second magnet-responsive device, and to provide a signal or a change in state in response to detecting at least one of the interactions.

Claims

1. A medical device for treating a user, the device comprising:

a first housing portion adapted to be carried by a user;

a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, the first housing portion and the second housing portion configured to be movable relative to each other from a first position to a second position in a predefined direction to operatively engage each other at the second position;

a first interactive element supported on the first housing portion;

a second interactive element supported on the second housing portion in a position to interact with the first interactive element when the first housing portion and the second housing portion are in the first position;

a third interactive element supported on the second housing portion in a position to interact with the first interactive element when the first housing portion and the second housing portion are in the second position, wherein the second interactive element and the third interactive element are arranged relative to each other along the predefined direction and spaced apart from each other in the predefined direction;

at least one guiding structure arranged on the second portion configured to guide movement of the first portion or the second portion from the first position to the second position; and

electronic circuitry configured to detect at least one of a first interaction between the first interactive element and the second interactive element, and a second interaction between the first interactive element and the third interactive element, the circuitry configured to provide a signal or a change in state in response to detection of at least one of the first interaction and the second interaction.

2. The device according to claim 1, the device further comprising:

a user-perceptible indicator operatively coupled to the electronic circuitry for providing a user-perceptible indication in response to the signal or the change in state.

3. The device according to claim 2, wherein the user-perceptible indication comprises at least one of an audible indication, a visual indication, and a tactile indication.

4. The device according to claim 1,

the first interactive element having a detectable parameter;

one or more of the second interactive element and the third interactive element comprising a sensor for detecting the parameter;

wherein the electronic circuitry is configured to provide the signal or the change in state in a case where the sensor detects a level of the parameter equal or exceeding a specified level.

5. The device according to claim 4, wherein the electronic circuitry is configured to provide a different signal in a case where the sensor detects a level of the parameter less than the specified level.

6. The device according to claim 1,

one or more of the second interactive element and the third interactive element having a detectable parameter;

the first interactive element comprising a sensor for detecting the parameter;

wherein the electronic circuitry is configured to provide the signal or the change in state in a case where the sensor detects a level of the parameter equal or exceeding a specified level.

7. The device according to claim 6, wherein the electronic circuitry is configured to provide a different signal in a case where the sensor detects a level of the parameter less than the specified level.

8. The device according to claim 1, wherein the first housing portion and the second housing portion are configured to be in the second position when the first housing portion and the second housing portion are positioned relative to each other in a predetermined manner.

9. The device according to claim 1, wherein the first housing portion and the second housing portion are configured to be in the second position when the first interactive element and the third interactive element are sufficiently proximate to each other to interact with each other.

10. The device according to claim 9, wherein the first interactive element and the third interactive element are sufficiently proximate to each other to interact with each other in a case where one or more of the first interactive element and the third interactive element contact each other, the first interactive element and the third interactive element are adjacent each other, and the first interactive element and the third interactive element are within a predetermined distance of each other.

11. The device of claim 1, further comprising:

a fourth interactive element supported on the first housing portion in a position to interact with the second interactive element when the first housing portion and the second housing portion are in the second position;

wherein the electronic circuitry is configured to detect the second interaction between the first interactive element and the third interactive element and a third interaction between the fourth interactive element and the second interactive element; and

wherein the electronic circuitry is configured to provide the signal or the change in state in response to detection of both the second interaction and the third interaction.

12. The device of claim 11, wherein the electronic circuitry is configured to provide the signal or the change in state in response to detection of the first interaction and then the detection of both the second interaction and the third interaction.

13. The device of claim 11, wherein the electronic circuitry is configured to provide the signal or the change in state in response to detection of both the second interaction and the third interaction simultaneously.

14. The device according to claim 1, the device further comprising:

a reservoir supported by one of the first and second housing portions;

at least one of a drive device and a needle-inserting device supported by the other of the first housing portion and the second housing portion relative to the housing portion that supports the reservoir, such that upon the first housing portion and the second housing portion being operatively engaged at the second position, the reservoir is operatively coupled to the at least one of the drive device and the needle-inserting device.

15. The device according to claim 14,

wherein the at least one of a drive device and a needle-inserting device comprises a drive device for selectively driving fluid from the reservoir;

and

wherein the delivery device further comprises control electronics operatively coupled to the electronic circuitry for controlling the drive device based on the signal or the change in state.

16. The device according to claim 15, wherein the control electronics is configured to inhibit operation of the drive device unless the signal or the change in state corresponds to the signal or the change in state when the first housing portion and the second housing portion are in the second position.

17. The device according to claim 15,

wherein the reservoir supports the first interactive element;

and

wherein the at least one of a drive device and a needle-inserting device supports the third interactive element in a position to interact with each other when the reservoir is operatively coupled to the at least one of the drive device and the needle-inserting device when the first housing portion and the second housing portion are in the second position.

18. The device according to claim 1, the device further comprising:

a monitoring or treatment device supported by one or more of the first housing portion and the second housing portion;

control electronics operatively coupled to the electronic circuitry for controlling the monitoring or treatment device based on the signal or the change in state.

19. The device according to claim 18, wherein the control electronics is configured to inhibit operation of the monitoring or treatment device unless the signal or the change in state corresponds to the signal or the change in state when the first housing portion and the second housing portion are in the second position.

20. The medical device of claim 1, wherein the electronic circuitry is configured to detect the first interaction and then the second interaction.

21. The medical device of claim 1, wherein the second interactive element and the third interactive element arranged relative to each other along the predefined direction are linearly aligned with each other along the predefined direction.

22. The medical device of claim 1, wherein the at least one guiding structure comprises at least one of a rail, ridge, or raised surface configured to maintain alignment of the first housing portion and the second housing portion as the first housing portion and the second housing portion move relative to each other along the predefined direction.

23. The medical device of claim 1, wherein:

the at least one guiding structure comprises two parts arranged on the second housing portion, forming a space between the two parts, the space is configured to receive at least a portion of the first housing portion;

the two parts are configured to maintain alignment of the first housing portion and the second housing portion along the predefined direction as the first housing portion is received in the space; and

each of the two parts extends parallel to the predefined direction.

24. The medical device of claim 1, further comprising at least one second guiding structure arranged on the first housing portion configured to guide movement of the first housing portion or the second housing portion from the first position to the second position.

25. A method of manufacturing a medical device for treating a user, the method comprising:

adapting a first housing portion to be carried by a user;

configuring a second housing portion to be selectively operatively engaged with and disengaged from the first housing portion, the first housing portion and the second housing portion configured to be movable relative to each other from a first position to a second position in a predefined direction to operatively engage each other at the second position;

supporting a first interactive element on the first housing portion;

supporting a second interactive element on the second housing portion in a position to interact with the first interactive element when the first housing portion and the second housing portion are in the first position;

supporting a third interactive element on the second housing portion in a position to interact with the first interactive element the first housing portion and the second housing portion are in the second position;

arranging the second interactive element and the third interactive element relative to each other along the predefined direction and spaced apart from each other in the predefined direction;

arranging at least one guiding structure on the second portion to guide movement of the first portion or the second portion from the first position to the second position

configuring electronic circuitry to detect at least one of a first interaction between the first interactive element and the second interactive element and a second interaction between the first interactive element and the third interactive element; and

configuring the circuitry to provide a signal or a change in state in response to detection of at least one of the first interaction and the second interaction.