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Dose-fixable disposable injection pen

A fixed-dose, one-time technology, used in medical, beauty and other related biotechnology fields, can solve the problems of high precision injection dose, inconvenient use, complex structure, etc., to ensure irreversibility, avoid injection danger, avoid injection The effect of insecurity

Inactive Publication Date: 2016-04-13
JIANGSU DELFU MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, for some special clinical patients, such as diabetic patients, hepatitis patients, etc., it is necessary to inject insulin, interferon, growth hormone, vaccines, etc. on different occasions, and the accuracy of the injection dosage is particularly high. In the process of using the old disposable syringes, it is inconvenient and cannot effectively achieve accurate medication; in addition, the existing accurate syringes have disadvantages such as high price, complicated structure, and inconvenient use.

Method used

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  • Dose-fixable disposable injection pen

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Embodiment Construction

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0026] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0027] Such as Figure 1 to Figure 4 As shown, a fixed-dose disposable injection pen includes an external button 1, an adjustment rod 2, a shaft sleeve 3, a casing 4, a screw rod 5, a cartridge holder 6 and a lower casing 7, and the external button 1 is installed At the upper end of the adjustment rod 2, the inverted claw buckle at the lower end of the external button 1 is connected with the guide inverted claw buckle at the upper end of the ...

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Abstract

The invention discloses a dose-fixable disposable injection pen, comprising an external button, an adjusting rod, a shaft sleeve, an outer shell, a screw, a refill support and a lower shell. The external button is mounted at an upper end of the adjusting rod. The screw is mounted on the adjusting rod through the shaft sleeve. The outer wall of the screw is provided with a locking groove in which a ratchet tooth structure is arranged. The lower end of the shaft sleeve is provided with a pawl mechanism. The outer shell encases the adjusting rod. A guide groove is arranged in the outer shell. The lower end of the inside of the outer shell is provided with a unidirectional ratchet tooth surface which forms a rotational adjusting feedback mechanism with the pawl mechanism of the shaft sleeve, the bottom of the outer shell is provided with a pawl structure forming an inverted claw structure with the ratchet tooth structure on the screw, and the adjusting rod is provided with a guide block engaging with the guide groove. The design with thread drive and guide groove is used, actual push-in is controlled by means of rotational angle adjusting, which gives convenience of operation in terms of both adjusting precision and torque conversion, and precise guidance of the guide groove ensures that injection is irreversible.

Description

technical field [0001] The invention relates to medical treatment, beauty treatment and other related biotechnology fields, in particular to a fixed-dose disposable injection pen. Background technique [0002] At present, for some special clinical patients, such as diabetic patients, hepatitis patients, etc., it is necessary to inject insulin, interferon, growth hormone, vaccines, etc. on different occasions, and the accuracy of the injection dosage is particularly high. In the process of using the old disposable syringe, it is inconvenient and cannot effectively achieve precise medication; in addition, the existing precise syringe has disadvantages such as high price, complicated structure, and inconvenient use. Contents of the invention [0003] The object of the present invention is to provide a fixed-dose disposable injection pen for the above-mentioned problems. [0004] The technical scheme that the present invention solves its technical problem adopts is: [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178A61M5/31
Inventor 李荣毓
Owner JIANGSU DELFU MEDICAL DEVICES CO LTD
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