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Pen injector

The technology of a pen-type injector and a rotating cylinder is applied in the directions of injectors, ampoule injectors, hypodermic injection devices, etc., which can solve the problems of waste, no injection adjustment device, expensive insulin, etc., and achieve the effects of cost saving, social resource saving, and simple operation.

Active Publication Date: 2014-02-19
GANGAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The syringe does not have a dressing changing device, and the syringe needs to be replaced after one use, which causes great waste
[0006] 2. No injection adjustment device
Diabetic patients of different degrees have different doses of insulin for each injection, and the syringe has poor versatility
And because insulin is expensive, the inability to adjust the dose may cause waste

Method used

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Embodiment Construction

[0062] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0063] Wherein, for the overall structure of the syringe and each component of the present invention, the first end described below is the end pointing to the direction of the pen tip, and the second end is the end pointing to the direction of the tail of the pen.

[0064] Such as figure 1 As shown, the pen injector of this embodiment includes: a medicine bottle installation part 2, a fixing plug assembly, and a metering and injection assembly. Such as figure 2 As shown, the needle 1 is detachably connected to the first end of the medicine bottle installation part 2, and the second end of the medicine bottle installation part 2 has an installation hole for installing the medicine bottle. Th...

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PUM

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Abstract

The invention provides a pen injector, which comprises a medicine bottle mounting part, a retaining plug assembly and a metering and injection assembly. The metering and injection assembly comprises a drum support, a push rod drum, a connecting cylinder, a sleeve stud and a push rod, wherein the drum support is tubular, and the inner wall of the drum support is provided with thread-shaped chutes; the push rod drum is movably arranged in the drum support along the axial direction of the drum support; the outer wall of the push rod drum is provided with spiral retaining strips matched with the thread-shaped chutes; the second end of the push rod drum is protruded at the second end of the drum support and is connected with a rotary operation part; the connecting cylinder is arranged in the push rod drum; the first end of the connecting cylinder is abutted with a first limit step; the second end of the connecting cylinder is connected with a press operation part; the sleeve stud and the connecting cylinder are synchronously and rotatablely arranged in the connecting cylinder and are invariable in position along the axial direction and relative to the drum support; the sleeve stud is provided with a threaded through hole; and the push rod movably penetrates in the sleeve stud along the axial direction. The pen injector provided by the invention not only can be recycled and can be regulated in injection quantity but also is simple in operation and convenient in use.

Description

technical field [0001] The invention relates to the technical field of injection devices, in particular to a pen type injector. Background technique [0002] In the prior art, many diabetic patients rely on insulin injections to lower blood sugar. Due to their dependence on insulin, the frequency of insulin injections by patients is gradually increasing. In this way, more and more patients prefer to inject insulin at home. [0003] The Chinese patent with the application number 200920101143.6 discloses a fully automatic insulin syringe, which achieves the purpose of automatic fast and accurate needle insertion and drug injection without pain. [0004] But above-mentioned injector has following defect: [0005] 1. The syringe does not have a dressing changing device, and the syringe needs to be replaced after one use, which causes great waste. [0006] 2. No injection adjustment device. Diabetic patients of different degrees have different insulin doses for each injection,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/24A61M5/315
Inventor 周立华
Owner GANGAN TECH