Medicinal fluid injection device

Abstract

The present invention relates to a medicinal fluid injection device for injecting a medicinal fluid into the skin of a patient so as to induce collagen generation and skin regeneration according to the radial diffusion of the medicinal fluid, comprising: a case part constituting the appearance; a medicinal fluid provision part mounted on the case part and in which a storage container storing a medicinal fluid is mounted; a medicinal fluid supply part connected to the storage container so as to supply a medicinal fluid; a medicinal fluid pressurization part mounted on the case part, and connected to the medicinal fluid supply part so as to pressurize the supplied medicinal fluid; and a medicinal fluid discharge part mounted on the medicinal fluid supply part so as to inject, into the skin, the medicinal fluid supplied from the medicinal fluid supply part. The medicinal fluid discharge part comprises: an outer case in which a plurality of needles are provided; and an inner case provided such that the front end is inserted into the outer case so as to be coupled thereto and the rear end is coupled to the medicinal fluid supply part. A throughhole penetrating the inside and the outside of the inner case and forming a micro-jet from the medicinal fluid is formed at the front end of the inner case.

Description

technical field [0001] The present invention relates to a medical liquid injecting device, and in more detail, relates to a medical liquid injecting device for injecting a medical liquid into a patient's skin. Background technique [0002] During medical surgery and cosmetic surgery, it is necessary to inject liquid into the skin, for example, to inject insulin into the skin, or to inject substances such as collagen into the skin for cosmetic purposes. [0003] The most common method of injecting the liquid is to insert the injection needle to the required depth into the site to be injected and then inject the liquid. However, the use of injection needles is accompanied by pain and bleeding, and depending on the user's proficiency, there may be problems with incorrect or wrong insertion. And, when it is inserted wrongly on the skin, it will cause serious damage to the skin tissue, and the damaged skin needs a long time of treatment like this. [0004] In order to solve the...

AI Technical Summary

Problems solved by technology

[0006] Therefore, like the case of a needleless syringe, it is very difficult to infiltrate the liquid evenly, because the angle and distance between the hole and the skin surface and the physical properties of the liquid to be infiltrated have a great influence on the infiltrated liquid. The amount and depth of the liquid have a great influence, so it is difficult to adjust the loss and penetration depth when injecting the liquid medicine

In particular, when a highly viscous liquid medicine is to be delivered, since the micropore jet with sufficient velocity is not formed, a part of the penetrated micropore jet cannot diffuse in the skin and splashes out, and the splashed micropore The jet collides against the micro-jet passing through the hole, which further reduces the speed of the micro-jet, resulting in a further decrease in skin penetration

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