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Drug delivery device

A technology for a drug delivery device and an installation sleeve, which is applied to needles, infusion sets, syringes, etc., can solve the problems of high cost of use, unfavorable people, and a large number of accessories, and achieves simple structure, improved dose accuracy, and precision requirements. reduced effect

Active Publication Date: 2016-07-06
SUZHOU HANERXI MEDICAL EQUIP DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Currently, Chinese patent application number 201080032171.2 discloses a dose setting mechanism for filling a drug delivery device, and Chinese patent application number 201080040852.3 discloses a drug delivery device, and Chinese patent application number 201080023137.9 A drug delivery device is disclosed. Although the above three drug delivery devices have been improved compared to the prior art, the improved structure is more complicated and the number of accessories is large, so the cost of use remains high, which is not conducive to widespread use. accepted by the people

Method used

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

[0042] A drug delivery device comprising:

[0043] refer to figure 1 , 2As shown, the housing 1, the housing 1 has a proximal end 11 and a distal end 12, the proximal end 11 is connected to the medicament cartridge 8, the medicament cartridge 8 is fixed on the proximal end 11 of the housing 1 through the installation tube 7, and is close to the proximal end 11 in the housing 1 A separator 13 is integrally provided, and the installation tube 7 is cla...

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Abstract

The invention discloses a drug delivery device.The drug delivery device is characterized by comprising a shell (1), an installation sleeve (2), a regulating barrel (3), a regulating rod (4) and a mandrel (5).The tail of the regulating rod is rotated, the regulating rod is in threaded connection with the mandrel, the mandrel only can slide relative to a separation piece, and therefore the regulating rod cannot rotate in the rotating process due to the mandrel but moves axially; one end of the regulating rod is connected with the separation piece in an abutting mode, and therefore the regulating rod only can move towards one side of the regulating barrel; the regulating barrel is in threaded connection with the installation sleeve, and the regulating barrel is driven by a limit ring to rotatably slide along with rotatable sliding of the regulating rod; when the regulating barrel slides to a certain position, the tail of the regulating rod is pushed, so that the mandrel which is in threaded connected with the regulating rod slides towards the near end to push against a plug in a regulating barrel to move a certain distance to deliver a drug from a drug barrel.

Description

technical field [0001] The present invention relates to a drug delivery device, and more particularly to a drug delivery device. Background technique [0002] Pen drug delivery devices find use in situations where regular injections by persons without formal medical training occur. This is increasingly common among patients with diabetes, where self-treatment can enable such patients to carry out effective management of their disease. [0003] In some types of drug delivery devices, such as pen-type devices, a medicament cartridge is used. These cartridges are housed in the drug delivery device. Such a cartridge is generally in the shape of a bottomless bottle with a piston-shaped stopper at the bottom end of the cartridge and a pierceable seal at the end. In order to dispense a dose of medicament from such a cartridge, the drug delivery device has a dose setting mechanism which uses a mandrel to push the mandrel along its axial direction after being pressed against the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178A61M5/32
CPCA61M5/178A61M5/32
Inventor 楚耀强叶芊林林刘鹏周伟
Owner SUZHOU HANERXI MEDICAL EQUIP DEV CO LTD
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