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an injection pen

An injection pen and pusher technology, applied in the field of medical devices, can solve the problems of complicated operation, complicated structure of injection components, etc., and achieve the effect of reducing injection liquid

Active Publication Date: 2022-05-10
宁波睿爱产品设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Injection pens generally include a casing and an injection component inside the casing, through which the drug is injected into the patient's body, but the structure of the injection component of the injection pen in the related art is relatively complicated, and the operation is relatively cumbersome

Method used

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Embodiment Construction

[0049] The following is attached Figure 1-17 The application is described in further detail.

[0050] The embodiment of the present application discloses an injection pen.

[0051] refer to figure 1 and figure 2 The injection pen includes a housing 1, an injection assembly 2 pierced in the housing 1, and a pen cap 3. The housing 1 has an accommodating chamber 11 passing through both ends of its length direction, and the two ends of the housing 1 are respectively defined as the injection assembly 2. The installation end 12 that enters the accommodation cavity 11 and the liquid outlet 13 for injection of the solution in the injection assembly 2, the direction of movement from the installation end 12 to the liquid outlet 13 is the injection direction, and the movement direction from the liquid outlet 13 to the installation end 12 For the medicine feeding direction, the pen cap 3 covers the liquid outlet end 13 of the housing 1 , and the pen cap 3 is movably engaged with the ...

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PUM

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Abstract

The application relates to an injection pen, which belongs to the technical field of medical devices. It includes a housing, a plunger axially slidably mounted on the housing, and a pusher axially slidably mounted on the housing, and the outer wall of the plunger is axially provided with at least two pushers. part, the pusher has an elastic push plate for abutting against the push part to drive the plunger to move in the injection direction, when the elastic push plate moves in the medicine direction and passes through the push part, the elastic push plate Elastic deformation occurs in the radial direction; the injection pen is provided with a limiting structure for limiting the movement of the plunger in the medicine direction. When the injection pen is in use, the pushing part is squeezed, and the elastic push plate of the pushing part abuts against the pushing part and pushes the plunger to move into the cartridge bottle, so that the injection pen injects liquid.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to an injection pen. Background technique [0002] When it is necessary to inject a drug directly into human tissue, people generally think of syringes. [0003] Injection pen is a kind of syringe, which is generally used for injecting micro-drugs, such as insulin, epinephrine, etc. [0004] Injection pens generally include a casing and an injection component disposed inside the casing, through which the drug is injected into the patient's body. However, the structure of the injection component of the injection pen in the related art is relatively complicated and the operation is relatively cumbersome. Contents of the invention [0005] In order to make the injection pen simple in structure and low in manufacturing cost, the present application provides an injection pen. [0006] A kind of injection pen provided by the application adopts the following technical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/24A61M5/315
CPCA61M5/24A61M5/31511A61M5/3157A61M5/31578A61M5/31595A61M5/31536
Inventor 侯士双徐祥俊陈常娇
Owner 宁波睿爱产品设计有限公司
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