Infusion Device with Base Portion and Durable Portion

• US 20100241065A1
• Filed: 06/04/2010
• Published: 09/23/2010
• 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., Hanson, Ian B., Cheney, Paul S. II
• Granted Patent: US 9,180,248 B2
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• 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 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2207/10 Device therefor
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• 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 5/14248 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 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the patient and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient or with infusion media are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of infusion media from the reservoir and a drive device and drive linkage.

Claims

1-33. -33. (canceled)

34. A delivery device for delivering infusion media to a patient, comprising:

a base portion having a bottom surface that secures to the patient'"'"'s skin;

a cannula extending from the base portion and into the patient'"'"'s skin once the delivery device is secured to the patient; and

a durable portion that mates with and secures to the base portion and is separable from the base portion, including a drive motor coupled to a reservoir contained in the delivery device to drive the infusion media from the reservoir through the cannula and into the patient in a controlled manner.

35. The delivery device of claim 34, further including an adhesive provided on the bottom surface of the base portion to adhere the base portion to the patient'"'"'s skin.

36. The delivery device of claim 34, further including control electronics housed in the durable portion to control operation of the drive motor.

37. The delivery device of claim 36, further including a sensor and a sensor lead connecting the sensor to the control electronics housed in the durable portion.

38. The delivery device of claim 34, wherein the infusion media is insulin.

39. The delivery device of claim 34, wherein the durable portion mates with and secures to the base portion via at least one of correspondingly shaped grooves, notches, or tabs that allows the durable portion and the base portion to snap together.

40. The delivery device of claim 34, wherein the cannula is a needle.

41. The delivery device of claim 34, further including a needle that extends through the cannula such that upon piercing the patient'"'"'s skin with the needle, an end of the cannula is guided through the patient'"'"'s skin by the needle and the needle is removable leaving the cannula in place in the patient'"'"'s skin.

42. The delivery device of claim 34, wherein the base portion is made of a flexible material.

43. The delivery device of claim 34, wherein the base portion is made of a flexible material that allows the patient to peal off the base portion from the patient'"'"'s skin.

44. The delivery device of claim 34, wherein the base portion is disposable.

45. The delivery device of claim 34, wherein the cannula is in flow communication with the reservoir.