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Quantitative injector

A technology of syringes and injection needles, applied in the field of medical devices, can solve problems such as inability to control drug content, adverse effects on patients, difficulty in accurately controlling the flow rate of drug liquid injection, etc.

Pending Publication Date: 2021-05-11
THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to make up for the above deficiencies, the present invention provides a quantitative injector, which aims to improve the accuracy of manual operation to control the flow rate and injection rate of the liquid medicine injection within the prescribed bolus rate limit, which is prone to occur due to drug injection. Too fast will cause adverse effects on the patient's body, and at the same time, because some existing syringes can not control the content of the drug when extracting the drug

Method used

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Embodiment

[0036] see Figure 1-7 , the present invention provides a quantitative syringe comprising a housing assembly 100 , an injection pushing assembly 200 and a limit adjustment assembly 300 .

[0037] see Figure 1-7 , the housing assembly 100 includes a housing 110, a bump 120, a connecting tube 130, a connector 140, and an injection needle 150. The bump 120 is connected to one end of the housing 110, and a connection hole 122 is opened on the bump 120. The housing 110 Scale marks 170 are provided on the outside. The scale line 170 is provided to facilitate observation of the liquid medicine content in the housing 110 , the connecting tube 130 is connected to the other end of the housing 110 , the connecting piece 140 is connected to the connecting tube 130 , and the injection needle 150 is connected to the connecting piece 140 . The connector 140 includes a first connection block 141, a second connection block 143 and a cavity 145, the first connection block 141 is connected to...

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Abstract

The invention provides a quantitative injector, and belongs to the technical field of medical instruments. The quantitative injector comprises a shell assembly, an injection pushing assembly and a limiting adjusting assembly. A protruding block is connected to one end of the shell, a communicating pipe is connected to the other end of the shell, a connecting piece is communicated with the communicating pipe, a piston piece is arranged between a push rod and the shell, a rotating piece is arranged on one side of the outer portion of a mounting shell, and the rotating piece is connected with a speed reducing piece; an adjusting bolt is connected between the shell and a connecting rod, a supporting plate is connected with the other end of a supporting rod, and the limiting baffle is connected to one side of the supporting plate. According to the invention, the flow and the speed of liquid medicine injection can be accurately controlled, the adverse effect on the physical condition of a patient caused by too fast injection of the medicine can be reduced, and meanwhile, the content of extracted medicine can be effectively controlled.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a quantitative injector. Background technique [0002] Most of the existing syringes are manual syringes, and the injection speed needs to be controlled by the medical staff. However, the syringes used in some special cases have high requirements for the control of the drug flow and rate. It is very difficult to control the drug flow through manual control. Difficult, and the flow rate is often unstable and fluctuates greatly, which is easy to cause adverse reactions to patients. For example, the commonly used 1ml syringe has a prescribed injection rate limit range. Due to the small content, it is difficult to accurately control the drug by manual operation. The flow rate of the liquid injection and the speed of the liquid injection, because it is difficult to inject the liquid slowly, clinically often cause adverse effects on the patient's body due to the rapid injection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/315A61M5/32
CPCA61M5/20A61M5/31511A61M5/31548A61M5/32
Inventor 陈亚坤刘磊
Owner THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
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