Self-destruction type filtering injector

A technology of syringes and filter devices, which is applied in the field of self-destructing filter syringes, can solve problems such as the spread of blood-borne diseases, and achieve the effect of preventing repeated use and avoiding spread

Inactive Publication Date: 2012-06-27
孙波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, common medical syringes can easily cause the spread of blood-borne diseases (such as hepatitis B, AIDS, etc.) among the crowd because they can be reused.

Method used

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  • Self-destruction type filtering injector
  • Self-destruction type filtering injector
  • Self-destruction type filtering injector

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Embodiment Construction

[0020] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0022] Figure 1 to Figure 6 A preferred embodiment of the self-destructing filter syringe of the present invention is shown. figure 1 is a cross-sectional view of the syringe, figure 2 yes figure 1 A partial enlargement of the image 3 is a cross-sectional view from another angle, Figure 4 yes image 3 A partial enlargement of the Figur...

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Abstract

The invention relates to the field of medical apparatus and instruments and discloses a self-destruction type filtering injector. The self-destruction type filtering injector is characterized in that: a needle cylinder is in an irregular shape and comprises a front part, a back part and a connection surface; the internal diameter of the front part is more than the internal diameter of the back part; a filtering device is arranged at the front top part of the needle cylinder; a resilience sheet is connected with the back of the filtering device; and a piston is in a self-destruction structure and is connected with a push rod. When liquid is injected by the self-destruction type filtering injector, the push rod is pulled so that the filtering device is moved backwards and the liquid enters due to a negative pressure; by stopping pulling the push rod, the filtering device is returned back through the resilient sheet; and positive pressure is formed by pushing the pull rod so that the liquid is discharged through the filtering device. After the liquid is discharged, the piston enters into a 'clamping position' so that the piston is separated and destructed by itself by pulling the push rod back. According to the self-destruction type filtering injector disclosed by the invention, the damage to the human body caused by insoluble particles is avoided or reduced by filtering the insoluble particles in the liquid, and the self-destruction type filtering injector is destructed by itself after being used, thereby preventing the injector from being repeatedly used and avoiding the transmission of hematogenous diseases.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a self-destruction filter syringe. Background technique [0002] Traditional medical syringes are generally composed of a syringe, a push rod and a piston, which only have the functions of absorbing liquid and injecting liquid, and do not have the function of filtering the liquid to be injected and removing insoluble particles in the liquid. Insoluble particles of special medicines in human blood vessels will cause red blood cells to gather on the particles, forming thrombus and causing vascular embolism and phlebitis. It can also directly cause blockage of local blood vessels, tissue hypoxia and even necrosis. Insoluble particles enter the pulmonary capillaries as foreign matter, causing allergic reactions, and macrophages in the body proliferate to surround the particles, forming intrapulmonary granulomas. The organs that are most susceptible to blockage and damage by insolub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/178
Inventor 孙波
Owner 孙波
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