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drug delivery device

A technology for delivery devices and drugs, which is applied in the direction of drug devices, infusion sets, and other medical devices, and can solve problems such as bulky, difficult to handle, and complicated devices

Active Publication Date: 2020-07-07
SHL MEDICAL AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The device according to document WO 2006 / 130098 is rather bulky and difficult to handle, and is provided with a double spring, which makes for a rather complex device, especially if the device is used as a disposable drug delivery device

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] The embodiment of drug delivery device 10 shown in the drawings comprises a generally tubular housing, which in the embodiment shown is a distal housing portion 12 and a proximal housing portion 14 . The distal housing part 12 is arranged with a first proximal region 16 , FIG. 3 , which has a slightly smaller diameter than the rest of the housing part, forming a proximally directed circumferential ledge 18 . The first proximal region 16 is further arranged with a plurality of arms 20 which are bendable in a substantially radial direction and provided at their free ends with outwardly extending protrusions 22 . These protrusions 22 are arranged to be bayonet-fitted in recesses 24 in the distal region of the proximal housing part 14, figure 1 , so that the two housing parts are connected to each other.

[0028] The distal housing part 12 is further arranged with a dose positioning mechanism 26 comprising a proximally directed tongue 28, Fig. 3 . The free end of the tong...

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PUM

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Abstract

The invention relates to a drug delivery device (10) comprising a housing (12, 14): a drug container holder (38) arranged to be movable relative to said housing (12, 14) and capable of receiving a drug container ( 42); an actuator (98) arranged in said housing and capable of acting on the drug container to expel a dose of drug upon actuation, said actuator comprising a plunger rod (106); manually operable A dose setting nut (58) is rotatably connected to the housing and is provided with threads (56); threads (54), which are arranged on the drug container holder (38), are arranged to Cooperate with the dose setting nut (58), wherein operation of the dose setting nut (58) will orient the drug container holder (38) and the drug container (42) towards the plunger rod ( 106) Movement for setting the dose of drug to be delivered.

Description

technical field [0001] The present invention relates to drug delivery devices, and in particular to drug delivery devices which enable the length of the device to be reduced during use. Background technique [0002] Many drug delivery devices on the market for the administration of doses of drugs are arranged with dose setting features. These may be parts of the drug delivery device that are operable relative to other parts, such as a dose drum that rotates relative to the housing. In some solutions, the different housing parts are moved relative to each other in the longitudinal direction when the dose is set. For example, document US 5,226,896 discloses an injection pen comprising a collar and a syringe housing threadedly engaged with each other. To set a dose of medicament, the syringe housing is rotated relative to the collar, wherein the syringe housing moves inside the collar, shortening the housing of the device. In another aspect, the distal end of the device comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/315
CPCA61M5/31553A61M5/31561A61M2005/3103A61M2005/2407A61M2005/202A61M2205/581A61M5/31541A61M5/31548A61M5/3155A61M5/31551A61M5/31555A61M5/2459A61M5/31536A61M5/31585A61M2005/3126A61M2005/3154
Inventor K.恩格G.埃尔门A.霍尔姆奎斯特
Owner SHL MEDICAL AG
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