Cannula for a device for dispensing a fluid product

A technology of fluid products and dispensing devices, applied in the direction of injection devices, devices introduced into the body, applications, etc., capable of solving problems such as damage to the joint area 100, leakage, fluid leakage, etc.

Active Publication Date: 2017-08-01
APTAR FRANCE SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is possible to leak fluid at the moment of piercing the plug 20, and the fluid may flow out of the reservoir 10 without passing through the cannula 4.
Additionally, if with Figure 2a sta

Method used

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  • Cannula for a device for dispensing a fluid product
  • Cannula for a device for dispensing a fluid product
  • Cannula for a device for dispensing a fluid product

Examples

Experimental program
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Embodiment Construction

[0026] The present invention more particularly relates to a device of the device type proposed in document EP0546607.

[0027] However, of course the present invention is not limited to such devices, but is applicable to all types of fluid product dispensing devices with cannulas for piercing injection points. The injection point can be a part of the user's or patient's body, especially with an injection device, or a plug that should be pierced before or at the beginning of activation, especially a single-dose or double-dose type device, and includes plugging with a plug Storage.

[0028] In the description, special reference is made to "axial" and "radial" Figure 4 , 5 The longitudinal center axis A of the cannula 4 can be seen. The “proximal end” and “distal end” refer to the dispensing hole 3 formed in the dispensing head 2.

[0029] The invention is particularly useful for figure 1 Single-dose or double-dose device shown. As mentioned above, such a device includes a reservoir...

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PUM

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Abstract

A hollow cannula (4) having a piercing tip (5) for piercing a piercing site, said piercing tip (5) being provided with an opening (6), said opening (6) defining a peripheral edge (7) that extends about said opening (6) and has a distal axial end and a proximal axial end, said distal axial end of said peripheral edge (7) forming the distal axial end (59) of the piercing tip (5), said distal axial end (59) of the piercing tip (5) being disposed on the longitudinal central axis (A) of said cannula (4), said piercing tip (5) having a rounded external shape in the radial direction and said distal axial end (59) of said piercing tip (5) having a rounded shape in the axial direction.

Description

Technical field [0001] The present invention relates to a cannula and a fluid product dispensing device including such a cannula. Background technique [0002] Fluid product dispensing devices that include cannulas are familiar. [0003] The first type of device includes an injection device that uses the cannula as an injection needle for puncturing an injection point on the patient's body. [0004] The second category of devices includes single-dose or double-dose type devices, which are suitable for dispensing one or two doses of a fluid product by a single actuation, in which a cannula is used to pierce the plug forming the injection site. Such as figure 1 It can be seen that the second type of device generally includes a main body 1 that receives a reservoir 10 containing one or two doses of fluid product, and a dispensing head 2 provided with a dispensing hole 3. When actuated, the dispensing head can be relatively The main body 1 moves axially. The reservoir 10 is generally ...

Claims

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Application Information

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IPC IPC(8): B05B11/02
CPCB05B11/02A61M5/3286A61M2205/195B05B11/025A61M5/31591A61M5/31593A61M5/32B05B11/0008B21G1/08
Inventor L·珀蒂
Owner APTAR FRANCE SAS
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