A syringe capable of controlling the flow rate of pushing liquid
A technology of flow rate control and syringes, applied in the field of syringes, can solve problems such as local discomfort, difficulty in controlling injection speed and force, pain of patients, etc., and achieve the effects of reduced speed increase, ingenious structure, and simple operation
Active Publication Date: 2020-08-04
庄国燕 +1
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Problems solved by technology
[0005] In view of the above situation, in order to make up for the technical deficiencies of the existing technology, the present invention provides a syringe that can realize the control of the flow rate of the pushing liquid, so as to solve the problem that the injection speed and force of the existing drug syringe are difficult to control, which may cause severe pain to the patient. and local discomfort
Method used
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Embodiment Construction
[0011] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0012] Depend on Figure 1 to Figure 3 Given, the present invention includes a syringe 1, a needle 2, a first piston 3 and a first push rod 4 with the axis horizontally arranged, the needle 2 is placed at the left end of the syringe 1, and the syringe 1 is horizontally arranged and connected to each other. Parallel first cavity 5 and second cavity 6, the first piston 3 is slidably placed in the first cavity 5, the left end of the first push rod 4 is connected with the first piston 3 to form the first push rod 4 The structure that drives the first piston 3 to slide in the first inner cavity 5; the first push rod 4 is equipped with a disc 7 coaxially arranged with the first push rod 4, and the disc 7 is placed on the side of the first piston 3 On the right side, on the outer edge surface of the disk 7, there are a plurali...
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The invention relates to a syringe capable of controlling liquid pushing speed. The syringe comprises a syringe body, a needle, a first piston and a first push rod and is characterized in that the needle is arranged at the left end of the syringe body, the syringe body is provided with a first inner cavity and a second inner cavity which are parallel with each other, the first piston is slidably arranged in the first inner cavity, the left end of the first push rod is connected with the first piston, the push rod is provided with a disc arranged on the right side of the first piston, the outeredge face of the disc is provided with slide grooves, a tension spring and a slidable slider are arranged in each slide groove, a second piston and a second push rod are slidably arranged in the second inner cavity, the second piston penetrates the left end of the push rod to be connected with the second piston, the right end of the first push rod is connected with the right end of the second push rod through a pressing lever on the right side of the syringe body, the first push rod is provided with a first channel, the first channel is communicated with the slide grooves, the second push rodis provided with a second channel penetrating the second push rod, the first channel is communicated with the second channel through a third channel arranged in the pressing lever, and the disc is provided with a four channel communicating the slide grooves and the first cavity.
Description
technical field [0001] The invention relates to the field of medical supplies, in particular to a syringe capable of controlling the flow rate of pushing liquid. Background technique [0002] As a convenient and fast drug introduction device, medical syringes are widely used in the treatment of various diseases because they generally do not cause other adverse symptoms of patients or cause large sores after use. [0003] However, during the injection of some specific drugs, due to the influence of the pharmacological effects of the drug itself, it is necessary to slow down the speed of administration, that is, the injection speed, so as not to cause strong discomfort or local allergic reactions to the patient; When injecting subcutaneously, if the injection speed is too fast, the patient will feel obvious pain, and it will cause local bulging and hardening, which will easily bring unexpected worries and troubles to the patient; once the injection is accompanied by long-term ...
Claims
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IPC IPC(8): A61M5/178A61M5/31A61M5/315A61M5/48
CPCA61M5/178A61M5/3129A61M5/315A61M5/482A61M2205/3334
Inventor 庄国燕李清梁楠
Owner 庄国燕