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Injection device having dose indication and spring drive

A technology of an injection device and a display device, which is applied in the directions of automatic injectors, syringes, ampoule injectors, etc., can solve problems such as emptying of product containers.

Active Publication Date: 2015-01-28
YPSOMED AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So this is repeated often until the product container is empty

Method used

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  • Injection device having dose indication and spring drive
  • Injection device having dose indication and spring drive
  • Injection device having dose indication and spring drive

Examples

Experimental program
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Embodiment Construction

[0067] The driving and dosing device is in the first embodiment (which is in Figures 1 to 4d ) comprises a sleeve-shaped housing 4 having an outer sleeve 4b which can be held by the user with one hand. as for example by Figure 2b As can be seen, the housing 4 also includes an inner sleeve 4 a which forms a seat for the distribution spring 11 and is arranged concentrically to the outer sleeve 4 b. The inner sleeve 4 a and the outer sleeve 4 b are connected to one another by a plurality of bridges distributed over the circumference and spaced apart from one another. An annular gap interrupted by bridges is formed between the outer sleeve 4b and the inner sleeve 4a, through which annular gap the distal section of the support element 9 protrudes. A further annular gap is formed between the support element 9 and the outer sleeve 4b, in which a dose indicator element 10 is arranged, which is designed in particular as a dose indicator cartridge, ie in the form of a sleeve.

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PUM

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Abstract

#CMT# # / CMT# The driving- and dosing device has a housing (4), a dosing indicator (10), a dosing scale (10b) arranged over the periphery of the dosing indicator, a pointing unit (4d) and a dosing element (3) tangible by the user of the driving- and dosing device. The dosing indicator is rotatable, particularly screwable relative to the pointing unit and around a rotational axis for adjusting the dosage by the rotation of the dosing element relative to the pointing unit. A value of the dosing scale is readable by the pointing unit, which corresponds the adjusted dosage. #CMT# : # / CMT# A dispensing spring (11) stores the energy required for dispensing the product. #CMT#USE : # / CMT# Driving- and dosing device for an injection device for application of a fluid product, particularly a medicament, such as insulin for diabetes therapy. #CMT#ADVANTAGE : # / CMT# The dosing indicator is rotatable, particularly screwable relative to the pointing unit and around a rotational axis for adjusting the dosage by the rotation of the dosing element relative to the pointing unit, and hence ensures improved and accurate dosing of the medicament. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a schematic exploded view of a driving- and dosing device. 3 : Dosing element 4 : Housing 4d : Pointing unit 10 : Dosing indicator 10b : Dosing scale 11 : Dispensing spring.

Description

technical field [0001] The present invention relates to an injection device for administering a liquid product, in particular a medicament, such as insulin for the treatment of diabetes. The invention relates in particular to drive and dosing means for such injection devices. Background technique [0002] From the prior art, in particular from document WO 2008 / 031237 A1, an injection device with a dose indicator cartridge and a drive spring is known. The drive spring is a watch spring, which is wound helically from a strip material. When setting the desired product dose, the spring is stressed with a rotational movement. For dose dispensing, the piston rod of the device is coupled to a spring by actuating an actuating button at the proximal end of the device, so that the spring can deliver the energy stored therein to the piston rod, thereby moving the piston rod in the direction of dispensing . To set a new dose, the spring is prestressed again by turning the dosing but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
CPCA61M5/31553A61M2005/2407A61M5/20A61M2005/3126A61M5/31563A61M2205/582A61M2205/581A61M5/3157A61M5/31583A61M5/3156
Inventor S.申科U.斯特雷特
Owner YPSOMED AG
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