Medicament delivery device

一种传送装置、药物的技术，应用在输液器、吸入器、皮下注射器械等方向，能够解决不愿意适应其它形状等问题，达到消除变形的效果

Inactive Publication Date: 2011-11-16
SHL GRP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, many patients have become accustomed to regular pen-shaped injectors and are therefore reluctant to adapt to other shapes

Method used

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  • Medicament delivery device
  • Medicament delivery device
  • Medicament delivery device

Examples

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Embodiment Construction

[0028] Figure 1 shows an example of a drug delivery device 10, in the illustrated embodiment a drug syringe, according to the invention. It comprises a generally elongated housing in two parts, a front housing 12 and a rear housing 14, which can be connected to each other in a suitable manner, for example, depending on the application and use, by means of threads 16 ( figure 2 ), detents, snap-in connectors, etc. can be releasably connected, or fixedly connected by deep grooves, glued, welded, etc.

[0029] A drug container 18 is provided in the front housing, wherein the container has a front opening with or for a transfer member to transfer the drug therethrough, and at least one movable stop 25 ( image 3 ). In the embodiment shown in the drawings, the drug container 18 is a syringe with an injection needle 20 protruding through an opening in the front end of the front housing 12 . The injection needle 20 is protected by a movable sheath 24 when the device is in a preloa...

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PUM

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Abstract

The present invention relates to a medicament delivery device (10) comprising a front housing (12) and a rear housing (14) connected to each other; a medicament container (18) disposed within the front housing (12), wherein the container (18) has a front opening with or for a delivery member for delivering the medicament therethrough and at least one movable stopper (25); and a compression spring (26) having a predetermined compressed length and a predetermined outer diameter, wherein the compressed length is the length of the spring when it is in a pre-tensioned state; wherein the device further comprises a first guide means comprising a front part (28) having a predetermined first length (61), a middle part (42) having a predetermined second length (62), and a rear part (34) having a predetermined third length (63), wherein said predetermined third length corresponds to the predetermined compressed length of the compression spring, wherein the front part (28) is arranged to be in contact with the movable stopper (25), wherein the middle part comprises an annular ledge (41) and first lock-release means (43), and wherein the rear part (34) is fully surrounded by the compression spring when it is in its pre-tensioned state; and a second guide means which constitutes a generally tubular inner wall (32) of the rear housing (14) having a predetermined fourth length (64), a rear end surface (31), a predetermined inner diameter, and second lock-release means, wherein the predetermined fourth length corresponds to the predetermined first (61) and the predetermined second (62) lengths together, and wherein the predetermined inner diameter of the second guide means is somewhat larger than the predetermined outer diameter of the compression spring, such that the compression spring is fully arranged inside said second guide means between the rear end surface (31) and the annular ledge (41) when it is in its pre-tensioned state.

Description

technical field [0001] The present invention relates to a drug delivery device, in particular a device for automatic drug delivery. Background technique [0002] The development of drug delivery devices for automatic drug administration is becoming more and more popular, as it allows users to provide drugs to receive drug injections without having to go to a hospital, clinic, etc. [0003] Automatic drug delivery devices have been developed that include varying degrees of functionality depending on eg the application, type of drug, intended user. Different functions may include: automatic piercing, injecting, mixing, priming, retracting from injection, needle sheathing, etc., just to name a few. [0004] Most injection devices on the market have an elongated, generally tubular drug container with one end to which an injection needle can be attached and a movable wall, such as a rubber stopper, at the other end. It is common to have some sort of elongated driver acting on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315
CPCA61M5/482A61M2005/2488A61M2005/2407A61M15/00A61M5/20A61M5/24A61M11/00A61M2005/2073A61M5/2033A61M2005/2492A61M5/31501
Inventor A.霍尔姆奎斯特
Owner SHL GRP AB
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