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Device and method for enhanced subcutaneous insulin absorption

  • US 9,387,033 B2
  • Filed: 08/27/2009
  • Issued: 07/12/2016
  • Est. Priority Date: 08/28/2008
  • Status: Active Grant
First Claim
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1. A system for delivering a therapeutic fluid to a body of a patient comprising:

  • a pump including;

    a reservoir for retaining the therapeutic fluid,a driving mechanism which dispenses via pumping the therapeutic fluid from the reservoir to the body of the patient,electronic components which control, at least in part, operation of the driving mechanism, anda power supply which powers at least the driving mechanism and the electronic components;

    a first subcutaneously insertable element for delivering the therapeutic fluid therethrough to the body of the patient, the first subcutaneously insertable element comprises a distal portion configured for subcutaneous placement within the body of the patient; and

    an absorption enhancement device configured to contact and locally heat tissue of the patient surrounding the first subcutaneously insertable element when subcutaneously placed, which causes an increase in absorption rate of the therapeutic fluid in the body of the patient, wherein the electronic components control the operation of the absorption enhancement device, and wherein the electronic components are contained in a reusable part, and that the reservoir is contained in a disposable part, the disposable part also provides the first subcutaneously insertable element and the absorption enhancement device, and wherein the system further comprises a skin adherable cradle unit having an elastically deformable anchoring latch at each opposing end, such that one opposing end of the skin adherable cradle unit extends upward directly against and along an opposing exterior side of the reusable part, and an other opposing end of the skin adherable cradle unit extends upwardly directly against and along an opposing exterior side of the disposable part,the anchoring latches hold both the reusable part and the disposable part horizontally side-by-side via a snapping engagement of a top portion of the anchoring latches with a pair of lateral notches, where one lateral notch is provided on the opposing exterior sides of the reusable part and an other lateral notch is provided on the opposing exterior side of the disposable part,and wherein the first subcutaneously insertable element and the absorption enchancement device. extend downwardly in an opening provided in the skin adherable cradle unit such that the distal portion can be placed subcutaneously within the body of the patient, and the absorption enhancement device can contact and locally heat surrounding tissue of the patient when the first subcutaneously insertable element is subcutaneously placed.

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