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Nozzle device with skin stretching means

A technology for tensioning devices and skin, applied in the direction of hypodermic injection devices, devices introduced into the body, injectors by jet action, etc., which can solve problems such as poor fixation and skin tearing

Inactive Publication Date: 2007-01-10
NOVO NORDISK AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another consequence of poor fixation is tearing of the skin if the nozzle moves laterally along the skin during the injection

Method used

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  • Nozzle device with skin stretching means
  • Nozzle device with skin stretching means
  • Nozzle device with skin stretching means

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] When the terms "distal", "proximal" and "radial" or similar relative expressions are used hereinafter, they refer only to the attached drawings, not to the actual usage necessary. The shown figures are schematic representations, therefore the arrangement of the different structures and their relative dimensions are for descriptive purposes only.

[0038] Figure 1 shows a perspective view of a nozzle device 1 comprising a push chamber unit 10 and an injection aid in the form of a skin tensioning unit 30 connected thereto. The propulsion chamber unit comprises a distally facing nozzle portion 15 (hereinafter just “nozzle”) having a distal aperture 16 forming an outlet nozzle, and the skin tensioning unit comprises a plurality of nozzle portions disposed around and positioned at the distal end. The skin-engaging tooth part 26 protrudes in the lateral radial direction.

[0039] As shown in Figures 2 and 3, the propulsion chamber unit comprises a housing member 11 in which...

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PUM

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Abstract

The invention relates to a nozzle device adapted for placement against a skin surface of a subject, the nozzle device providing a means for stretching the skin, the nozzle device being suitable for use in jet injection. More specifically, the skin stretching means is arranged circumferentially relative to a nozzle, the skin stretching means having an initial first configu-ration corresponding to an initial state in which the skin stretching means is adapted to be placed against a skin surface of the subject, the skin stretching means being moveable to a second configuration, wherein movement of the skin stretching means to the second configu-ration after the skin stretching means has been placed against the skin of the subject results in the skin being stretched relative to the outlet nozzle.

Description

Technical field: [0001] The present invention relates to a nozzle device adapted to be placed against a surface of a subject, the nozzle device providing a means for tensioning the surface of the skin. The nozzle device may conveniently be used in a delivery device to enhance the interaction between the delivery device and the skin. For example, the nozzle device may be used with a propulsion generating jet injection device. Background technique [0002] Subcutaneous and intramuscular delivery of liquid drugs by injection is commonly used in medical technology. Since certain drugs, such as insulin, must often be injected into individual patients, it is desirable to be able to administer the injection simply. [0003] Many patients dislike needle injections due to pain or fear of needles. Plus, accidental needlesticks can spread blood-borne pathogens, such as HIV and hepatitis, to health care workers. Likewise, concerns about the disposal of used needles continue to incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/30A61M5/42A61M5/20
CPCA61M5/2033A61M5/425A61M5/30A61M5/42A61M5/204A61M5/14A61M5/00A61M3/00
Inventor 托尔本·S·汉森
Owner NOVO NORDISK AS
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