INFUSION MEDIUM DELIVERY DEVICE AND METHOD WITH DRIVE DEVICE FOR DRIVING PLUNGER IN RESERVOIR

• US 20130338584A1
• Filed: 08/20/2013
• Published: 12/19/2013
• Est. Priority Date: 05/06/2005
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: MOBERG, Sheldon B., MOUNCE, R. Paul, NORTON, Melissa D., BENTE, Paul F. IV, HANSON, Ian B., KOVELMAN, Paul H.
• Granted Patent: US 9,199,030 B2
• Time in Patent Office: Days
• US Class Current: 604/111
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/14573 with a replaceable reservoir for quick connection/disconnection with a driving system
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 2205/103 rotating
• CPC Class Codes: A61M 2205/58 Means for facilitating use, e.g. by people with impaired vision
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14236 Screw, impeller or centrifugal type pumps
• 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 5/14526 the piston being actuated by fluid pressure
• 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 5/5086 for indicating if defective, used, tampered with or unsterile
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A delivery device includes first and second housing portions that selectively engage and disengage. A reservoir on one housing portion operatively engages a drive device and/or a needle inserting device on the other housing portion. Upon proper engagement of the housing portions, the reservoir operatively couples to the drive device and/or the needle inserting device. A first magnet on the first housing portion and a second magnet (or a magnetically-attractive material) on the second housing portion are positioned to magnetically interact with each other, upon operative engagement of the housing portions. A third magnet on the second housing portion may be opposed to the first magnet to help align the housing portions for connection. A magnet-responsive device may be on one or both housing portions to detect alignment and/or connection of the housing portions.

Claims

1-48. -48. (canceled)

49. A medical device for delivering an infusion medium to 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;

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 and second housing portions relative to the housing portion that supports the reservoir, such that upon the first and second housing portions being operatively engaged, the reservoir is operatively coupled to the at least one of a drive device and a needle inserting device;

a first magnet supported on the first housing portion; and

a second magnet supported on the second housing portion in a position to magnetically interact with the first magnet upon the first and second housing portions being improperly aligned when brought toward each other for operative engagement.

50. The medical device according to claim 49, wherein the second magnet is supported on the second housing portion in a position to repel the first magnet upon the first and second housing portions being improperly aligned when brought toward each other for operative engagement.

51. The medical device according to claim 49, wherein one of the first magnet and the second magnet is arranged closer to a center position of the first housing portion than the other of the first magnet and the second magnet to a center position of the second housing portion.

52. The medical device according to claim 49, wherein the first and second magnets are positioned relative to each other so as to impart a repelling force directed toward properly aligning the first and second housing portions for operative engagement, when the first and second housing portions are not properly aligned when brought toward each other for operative engagement.

53. The medical device according to claim 49, wherein the first and second magnets are positioned laterally offset from each other upon the first and second housing portions being operatively engaged.

54. The medical device according to claim 49, wherein the first and second magnets are positioned relative to each other so as to impart a repelling force directed toward properly aligning the first and second housing portions for operative engagement.

55. The medical device according to claim 49, wherein the first housing portion includes a first surface for engaging a corresponding surface on the second housing portion, upon the first and second housing portions being operatively engaged, wherein the first surface of the first housing portion and the corresponding surface on the second housing portion are shaped to mate with each other, upon the first and second housing portions being operatively engaged.

56. The medical device according to claim 55, wherein the first surface and the corresponding surface each comprise a sloping surface.

57. The medical device according to claim 56, wherein the sloping first surface and the sloping corresponding surface are arranged to abut and to force the first and second housing portions toward an aligned position for operative engagement, upon the first and second housing portions being brought together for operative engagement.

58. The medical device according to claim 49, wherein at least one of the first magnet and the second magnet comprises an electromagnet configured to be selectively activated to magnetically interact with at least one of the other of the at least one of the first magnet and the second magnet.

59. The medical device according to claim 49,

wherein each of the first magnet and the second magnet have a pole that faces a pole of the other of the first magnet and the second magnet when the first and second housing portions are improperly aligned when brought toward each other for operative engagement;

and

wherein the facing poles of the first magnet and the second magnet are of the same polarity such that the first magnet and second magnet mutually repel each other upon the first and second housing portions being improperly aligned when brought toward each other for operative engagement.

60. The medical device according to claim 49,

wherein when the first housing portion and the second housing portion are in a first state of operative engagement, the first magnet is supported on the first housing portion to be aligned with the second magnet;

wherein when the first housing portion and the second housing portion are in a second state of operative engagement, the first magnet is supported on the first housing portion to be laterally offset from the second magnet.

61. The medical device according to claim 60, wherein the second state of operative engagements corresponds to a proper operative engagement of the first housing portion and the second housing portion.

62. The medical device according to claim 49, wherein one or more of the first magnet and the second magnet is configured to inhibit vertical alignment between each other.

63. The medical device according to claim 49, the device further comprising:

at least one of a third magnet and an attractive material supported on the second housing portion in a position to magnetically interact with the first magnet upon the first housing portion and the second housing portion being operatively engaged;

wherein the first magnet is configured to be attracted to the at least one of the third magnet and the attractive material.

64. The medical device according to claim 49, the device further comprising:

a magnet-responsive device supported on the second housing portion in a position to magnetically interact with the first magnet upon the first housing portion and the second housing portion being operatively engaged.

65. The medical device according to claim 64, wherein the first magnet is configured to magnetically interact with the magnet-responsive device when the first magnet contacts the magnet-responsive device or a magnetically attractive material adjacent the magnet-responsive device.

66. The medical device according to claim 64, wherein the first magnet is configured to be attracted to at least one of the magnet-responsive device and a magnetically attractive material adjacent the magnet-responsive device.

67. A method of manufacturing a medical device for delivering an infusion medium to a user, the method comprising:

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

configuring a second housing portion to be selectively operatively engaged with and disengaged from the first housing portion;

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

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

supporting a first magnet on the first housing portion; and

supporting a second magnet supported on the second housing portion in a position to magnetically interact with the first magnet upon the first and second housing portions being improperly aligned when brought toward each other for operative engagement.

68. A medical device for delivering an infusion medium to 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;

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 and second housing portions relative to the housing portion that supports the reservoir, such that upon the first and second housing portions being operatively engaged, the reservoir is operatively coupled to the at least one of a drive device and a needle inserting device;

a first magnet supported on the first housing portion; and

a second magnet supported on the second housing portion in a position to repel the first magnet upon the first and second housing portions being improperly aligned when brought toward each other for operative engagement.