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Injection pen

A technology of an injection pen and a shell, which is applied in the field of medical devices, can solve the problems of complex structure and complicated operation of injection components.

Active Publication Date: 2021-09-14
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 invention relates to an injection pen, and belongs to the technical field of medical instruments. The injection pen comprises a shell, a plunger and a pushing part, wherein the plunger is axially and slidably mounted on the shell, and the pushing part is axially and slidably mounted on the shell; at least two pushing portions are axially arranged on the outer wall of the plunger, the pushing part is provided with an elastic pushing plate for abutting against the pushing portions to drive the plunger to move towards an injection direction, and the elastic pushing plate elastically deforms in the radial direction when moving towards a medicine applying direction and passing the pushing portions; and the injection pen is provided with a limit structure for limiting the plunger to move towards the medicine applying direction. When the injection pen is used, the pushing part is extruded, the elastic pushing plate of the pushing part abuts against the pushing portions and pushes the plunger to move towards the inside of a clamping bottle, and 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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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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