A negative pressure structure of a water light needle without liquid return

Abstract

The present invention discloses a negative pressure structure for a water-light injection without liquid return, which belongs to the technical field of water-light injection, and comprises a negative pressure chamber and an injection needle. There are multiple injection needles, which are installed in the negative pressure chamber. The negative pressure structure for the water-light injection without liquid return also comprises a connecting pipe, a filter assembly and an air pipe. The filter assembly comprises a filter chamber, a filter element and a drainage joint. The filter chamber is connected with the negative pressure chamber through the connecting pipe, and the air pipe is connected with the negative pressure chamber through the filter chamber. The filter element is installed in the filter chamber to filter liquid or oil entering from the negative pressure chamber to prevent the liquid or oil from entering the air pipe. The filter chamber is provided with a liquid outlet, and the drainage joint is detachably connected to the liquid outlet. When the drainage joint is separated from the liquid outlet, the liquid outlet discharges the liquid or oil to prevent the liquid or oil from entering the air pipe and causing component pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of hyaluronic acid injection, and in particular to a negative pressure structure of hyaluronic acid injection without liquid return. Background Art

[0002] Adults' facial skin is prone to sagging, wrinkles, and large pores. These problems can be improved by injecting drugs into the dermis, thereby achieving hydrated, tender, wrinkle-reducing, and firming facial skin. The current mainstream water-light needle is mainly combined with negative pressure technology. Before entering the skin, the water-light needle uses negative pressure to lift the skin, and then the needle accurately enters the dermis to inject the drug.

[0003] Existing hyaluronic acid injection has serious leakage and liquid return phenomena, and liquid or oil pollution pollutes components and affects the injection effect. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a liquid-free water light needle negative pressure structure that can avoid liquid or oil pollution on components.

[0005] One of the purposes of the present invention is achieved by the following technical solution:

[0006] A liquid-return-free water-light needle negative pressure structure comprises a negative pressure chamber and an injection needle. There are multiple injection needles, which are installed in the negative pressure chamber. The liquid-return-free water-light needle negative pressure also includes a connecting pipe, a filter assembly and an air pipe. The filter assembly includes a filter chamber, a filter element and a drain joint. The filter chamber is connected to the negative pressure chamber through the connecting pipe, and the air pipe is connected to the negative pressure chamber through the filter chamber. The filter element is installed in the filter chamber to filter the liquid or oil entering from the negative pressure chamber to prevent the liquid or oil from entering the air pipe. The filter chamber is provided with a liquid outlet, and the drain joint is detachably connected to the liquid outlet. When the drain joint is separated from the liquid outlet, the liquid outlet discharges the liquid or oil.

[0007] Furthermore, the filter assembly also includes an end cover, the filter element is fixed to the end cover, and the end cover is installed in the filter chamber.

[0008] Furthermore, the end cover is interference fit with the top side wall of the filter chamber.

[0009] Furthermore, the connecting pipe and the air pipe are respectively located at two opposite ends of the filter element.

[0010] Furthermore, the zero-liquid-return water light needle negative pressure structure also includes a fixing piece, and the drainage joint is fixed to the outer surface of the filter chamber through the fixing piece.

[0011] Furthermore, the zero-liquid-return water light needle negative pressure structure also includes a connecting belt, and two ends of the connecting belt are respectively connected to the fixing part and the drainage joint.

[0012] Furthermore, the liquid outlet is located at the bottom of the filter chamber.

[0013] Furthermore, the plurality of injection needles are evenly distributed in the negative pressure chamber, and there is a distance between the ends of the injection needles and the contact surface between the negative pressure chamber and the human body.

[0014] Furthermore, the filter chamber is cylindrical.

[0015] Compared with the prior art, the negative pressure structure of the liquid-return-free water light needle of the present invention also includes a connecting pipe, a filter assembly and an air pipe. The filter assembly includes a filter chamber, a filter element and a drain joint. The filter chamber is connected with the negative pressure chamber through a connecting pipe, and the air pipe is connected with the negative pressure chamber through the filter chamber. The filter element is installed in the filter chamber to filter the liquid or oil entering from the negative pressure chamber to prevent the liquid or oil from entering the air pipe. The filter chamber is provided with a liquid outlet, and the drain joint is detachably connected to the liquid outlet. When the drain joint is separated from the liquid outlet, the liquid outlet discharges the liquid or oil to prevent the liquid or oil from entering the air pipe and causing component contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the negative pressure structure of the water light needle without liquid return of the present invention;

[0017] Figure 2 for Figure 1 A cross-sectional view of the filter component of the zero-liquid-return water light needle negative pressure structure.

[0018] In the figure: 1. injection needle; 2. negative pressure chamber; 3. connecting pipe; 4. filter assembly; 41. end cover; 42. filter chamber; 420. liquid outlet; 43. connecting belt; 44. fixing piece; 45. filter element; 46. drainage connector; 5. air pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Figure 1 to Figure 2 The invention discloses a negative pressure structure for a water light needle without liquid return, which comprises an injection needle 1, a negative pressure cavity 2, a connecting tube 3, a filter assembly 4 and an air tube 5.

[0023] The injection needle 1 is used to inject drugs into the human body. There are multiple injection needles 1, and the multiple injection needles 1 are installed in the negative pressure chamber 2. Specifically, the multiple injection needles 1 are evenly installed so that the needle holes of the human body are evenly distributed. There is a gap between the end of the injection needle 1 and the contact surface between the negative pressure chamber 2 and the human body.

[0024] The negative pressure chamber 2 is used to form negative pressure to lift the skin, making it easier for the needle 1 to penetrate.

[0025] The connecting pipe 3 is connected to the negative pressure chamber 2 , and the connecting pipe 3 adjusts the air pressure in the negative pressure chamber 2 by extracting gas in the negative pressure chamber 2 or delivering gas into the negative pressure chamber 2 .

[0026] The filter assembly 4 includes an end cover 41 , a filter chamber 42 , a connecting belt 43 , a fixing member 44 , a filter element 45 and a drainage connector 46 .

[0027] The end cap 41 is used to install the filter element 45. The end cap 41 is installed on the top of the filter chamber 42 and is detachably connected to the filter chamber 42. When the end cap 41 is installed in the filter chamber 42, the end cap 41 and the filter chamber 42 are interference fit.

[0028] The filter chamber 42 is a hollow structure, with an opening at the top, and the end cap 41 is interference fit with the side wall of the opening. Through holes are respectively provided on opposite sides of the filter chamber 42, one through hole is connected to the connecting pipe 3, and the other through hole is connected to the air pipe 5. A liquid outlet 420 is provided at the bottom of the filter chamber 42, and the liquid outlet 420 is located at the lowest point of the filter chamber 42. In this embodiment, the filter chamber 42 is cylindrical.

[0029] The connecting belt 43 is used to connect the drainage connector 46 so that the drainage connector 46 will not be lost or dropped after the drainage connector 46 is separated from the liquid outlet 420 of the filter chamber 42. One end of the connecting belt 43 is connected to the drainage connector 46, and the other end is connected to the fixing member 44.

[0030] The fixing member 44 is used to fix the drainage connector 46 . The fixing member 44 is fixed to the outer wall of the filter chamber 42 . The fixing member 44 is connected to the connecting belt 43 , so that the drainage connector 46 is separated from the liquid outlet 420 of the filter chamber 42 and then hung on the outer wall of the filter chamber 42 .

[0031] The filter element 45 is fixed to the end cover 41 and installed in the filter chamber 42. The filter element 45 is located between the connecting pipe 3 and the air pipe 5, and the filter element 45 filters the liquid or oil entering the connecting pipe 3.

[0032] The drain connector 46 is detachably mounted on the liquid outlet 420 at the bottom of the filter chamber 42. When the drain connector 46 is mounted on the liquid outlet 420, it is interference fit with the liquid outlet 420.

[0033] When the negative pressure structure of the non-return water light needle is used, the air suction device works, and the gas flows from the negative pressure chamber 2 into the trachea 5. During the gas flow, the liquid or oil on the skin in the negative pressure chamber 2 is mixed in and brought to the filter chamber 42. The filter element 45 filters the gas, so that the liquid or oil is deposited at the bottom of the filter chamber 42. After the work is completed, the drain joint 46 is opened to discharge the liquid in the filter chamber 42.

[0034] This structure can prevent the liquid from flowing back into the air pipe 5 during the process of the vacuum pump evacuating the negative pressure chamber 2, thereby preventing the liquid or oil from contaminating the components.

[0035] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A negative pressure structure for a water light needle without liquid backflow, comprising a negative pressure chamber and an injection needle, wherein the number of the injection needles is multiple and the multiple injection needles are installed in the negative pressure chamber, characterized in that: The zero-return water light needle negative pressure structure also includes a connecting pipe, a filter assembly and an air pipe. The filter assembly includes a filter chamber, a filter element, an end cover, a fixing, a connecting belt and a drain joint. The filter chamber is connected to the negative pressure chamber through the connecting pipe, and the air pipe is connected to the negative pressure chamber through the filter chamber. The filter element is fixed to the end cover, and the end cover is installed in the filter chamber. The end cover is interference fit with the top side wall of the filter chamber. The filter element is installed in the filter chamber to filter the liquid or oil entering from the negative pressure chamber to prevent the liquid or oil from entering the air pipe. The filter chamber is provided with a liquid outlet, and the drain joint is detachably connected to the liquid outlet. When the drain joint is separated from the liquid outlet, the liquid outlet discharges the liquid or oil. The drain joint is fixed to the outer surface of the filter chamber through the fixing, and the two ends of the connecting belt are respectively connected to the fixing and the drain joint.

2. The negative pressure structure of the water light needle without liquid return according to claim 1 is characterized in that: The connecting pipe and the air pipe are respectively located at two opposite ends of the filter element.

3. The negative pressure structure of the water light needle without liquid return according to claim 1 is characterized in that: The liquid outlet is located at the bottom of the filter chamber.

4. The negative pressure structure of the water light needle without liquid return according to claim 1 is characterized in that: The plurality of injection needles are evenly distributed in the negative pressure chamber, and there is a distance between the ends of the injection needles and the contact surface between the negative pressure chamber and the human body.

5. The negative pressure structure of the water light needle without liquid return according to claim 1 is characterized in that: The filter chamber is cylindrical.

Images