Patch-like infusion device

A technology for protective elements, skins, applied in the field of substance delivery devices, which can solve the problems of failure, needle penetration, injury, etc.

Active Publication Date: 2006-11-15
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices are simple and inexpensive to use, but they require needle insertion for each injection, usually three to four times a day
Second mode infusion pump therapy, which requires the purchase of an expensive pump that lasts about three years
In theory, this type of device offers many of the advantages of an infusion pump without the added cost and inconvenience
Unfortunately, however, many of these devices suffer from discomfort including (due to the gauge and/or length of the injection needle used), the substance to b

Method used

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Examples

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Embodiment Construction

[0169] Embodiments of the invention described below may be used as a convenient, tablet-like device for delivering pre-measured doses of a substance, such as a drug or drug, to a user via an adhesive-attached infusion set. The device is self-contained and attached to the user's skin surface by an adhesive provided on the bottom surface. After being properly positioned and activated by the user, the pressure of a relaxed Belleville spring or other Belleville spring on the surface of the container in the device can be used to empty the contents of the flexible container through one or more patient microneedles via the needle manifold . The contents of the container are then delivered into the user's skin via microneedles that are driven into the skin. It should be understood that other embodiments are possible in which a different type of stored energy device (which may be mechanical, electrical and / or chemical) is substituted for the Belleville or Belleville springs.

[0170]...

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PUM

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Abstract

A system and method for a patch-like, self-contained substance infusion device (700) which provides hidden patient needles (760) that includes a rigid bladder (712) used with a non-distensible bladder film (740), such as a metallized film. The device (700) can be attached to skin via an adhesive surface and a push button (780) activation assembly can be used to remove an interlock (730), allowing a disk, or Belleville spring (735) assembly to apply constant pressure to a fluid reservoir assembly (710). The push button (780) assembly allows the release of one or more spring-loaded patient needles (760) into the skin, and establishes a fluid path between the patient needles (760) and the pressurized fluid reservoir thereby delivering an infusion into the skin. The push button (780) activation assembly further allows the release of safety mechanisms (794) which are driven by spring (793) and released by trap-door (790).

Description

technical field [0001] The present invention relates generally to substance delivery devices with improved valves, springs and safety mechanisms, and also to tablet form, self-contained substance delivery devices that can be used to deliver various substances or drugs to patients. This application claims priority under 35 U.S.C. §119(e) over U.S. Provisional Patent Application Serial No. 60 / 494,286, filed August 12, 2003, by Chris Cindrich et al., entitled "Patch-Like Infusion Device," and Priority to U.S. Provisional Patent Application Serial No. 60 / 558,611, entitled "Patch-Like Infusion Device With Improved Valve, Spring And Safety Mechanisms," filed April 2, 2004 by Chris Cindrich et al., incorporated herein by reference, per The entire content of the said patent. This application contains subject matter related to U.S. Nonprovisional Patent Application Serial No. 10 / 623,702, filed July 22, 2003, by Charles D. Shermer et al., entitled "Patch-Like Infusion Device," incorpor...

Claims

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Application Information

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IPC IPC(8): A61M5/32
CPCA61M2005/1426
Inventor C·钦德里奇R·松德雷格G·豪厄尔W·哈丁A·拉斯托维奇L·韦德里纳
Owner BECTON DICKINSON & CO
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