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Impact injection device for electromagnetic energy storage-type needleless injector

A needle-free syringe and injection device technology, applied in the field of medical devices, can solve the problems of low acceleration, high cost of materials used, and bulky volume.

Pending Publication Date: 2021-01-05
张增宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a needle-free syringe with a simple structure, small volume and light weight for the problems of small initial acceleration, long empty stroke, or relatively large volume and high material cost. Impact injection device for electromagnetic energy storage type needle-free injector

Method used

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  • Impact injection device for electromagnetic energy storage-type needleless injector
  • Impact injection device for electromagnetic energy storage-type needleless injector
  • Impact injection device for electromagnetic energy storage-type needleless injector

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] The following descriptions about directions are all defined according to the directions observed by the operator during the injection operation, and do not mean to limit the specific positional relationship of the various components of the inventive device.

[0025] Such as figure 1 , figure 2 Shown is an impact injection device for an electromagnetic energy storage type needle-free injector. The impact injection device includes a cylinder 1 with an inner cavity, a front end cover 2 fixed on the front end of the cylinder 1, and a The impact armature 3 installed in the cylinder 1 to move in the front and rear direction of 1, and the electromagnetic coil 4 fixed in the cylinder 1 to drive the impact armature 3 to move back and forth when energized, the cylinder 1 is open at the front and closed at the rear. Ho...

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Abstract

The present invention discloses an impact injection device for an electromagnetic energy storage-type needleless injector and belongs to the field of medical devices. Main points of a technical schemeare as follows: current is introduced into an electromagnetic coil through an electric control device, a generated electromagnetic field applies a rightward electromagnetic driving force to an impactarmature, due to an action of a pawl, the impact armature is static, when the current becomes larger and larger, more potential energy is accumulated in the impact armature, the pawl is pressed to rotate anticlockwise to be disengaged from the impact armature, the impact armature moves rightwards at a very high speed and impacts a piston rod in a needleless ampoule assembly, besides, a proper distance is reserved between a rear end of the piston rod and a front end of the impact armature, so that when the impact armature is rotated to an impact state after energy storage to drive the piston rod to impact, the piston rod can reach a relatively high speed, an idle stroke is greatly shortened, and volume of the needleless injector is reduced. The impact injection device for the electromagnetic needleless injector is simple in structure, small in size, light in weight and capable of being widely popularized.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an impact injection device for an electromagnetic energy storage type needle-free injector. Background technique [0002] Needle-free injection technology is to inject liquid medicine directly into the body tissues in the form of ultra-fine, high-speed, and straight-line high-pressure jets without the use of needles, which solves a series of problems caused by traditional injections caused by needles piercing the body. , such as: pain, bleeding, infection, tissue damage, psychological stress of patients, etc.; at the same time, the distribution of drugs injected without needles in the tissue is more diffuse, which is conducive to the absorption of drugs, and the skin is not easy to harden after long-term injection. Therefore, needle-free injection technology has broad application prospects, especially for children's vaccination and diabetic patients. [0003] In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/303A61M5/31
CPCA61M5/30A61M5/3007A61M5/31
Inventor 张增宇
Owner 张增宇
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