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Infusion set

A technology of infusion device and sealed cavity, which is applied in pressure infusion, hypodermic injection devices, and devices introduced into the body, etc., can solve the problems of unstable infusion rate and other problems, and achieve the effect of stable infusion rate and stable moving speed.

Active Publication Date: 2021-06-11
ANHUI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an infusion device to alleviate the technical problem of unstable infusion rate in the prior art

Method used

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Experimental program
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Embodiment 1

[0028] Such as figure 1 As shown, the infusion device provided by the embodiment of the present invention includes: a housing 100, a piston assembly 200 and a pushing device 300; the piston assembly 200 is arranged in the housing 100, and separates the inner chamber of the housing 100 to form a first seal cavity 101 and a second sealed cavity 102; the housing 100 has an inner cavity extending axially, and the pushing device 300 is used to make the piston assembly 200 have a tendency to move axially along the inner cavity of the housing 100 to change the second The volume of the sealed chamber 102, and compress the first sealed chamber 101; the first sealed chamber 101 is used to accommodate the medicament, and the housing 100 is provided with a first passage 103 communicating with the first sealed chamber 101; the housing 100 is provided with a communication with the second The second channel 104 of the sealed chamber 102 is provided with a first flow limiting component 105 in...

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Abstract

The invention provides an infusion device, which relates to the technical field of injection devices. The infusion device provided by the invention includes: a casing, a piston assembly and a pushing device; the piston assembly is arranged in the casing, and the inner cavity of the casing is separated to form The first sealed cavity and the second sealed cavity; the pushing device is used to make the piston assembly have a tendency to move along the inner cavity of the housing to change the volume of the second sealed cavity and compress the first sealed cavity; the first sealed cavity is used It is used to accommodate medicine, and the housing is provided with a first channel that communicates with the first sealed cavity; the housing is provided with a second channel that communicates with the second sealed cavity, and the second channel is provided with a first flow limiting component for the first current limiting component. It is used to change the opening degree of the second channel to adjust the moving speed of the piston assembly, which alleviates the technical problem of unstable infusion rate in the prior art.

Description

technical field [0001] The invention relates to the technical field of injection devices, in particular to an infusion device. Background technique [0002] In the traditional infusion process, the patient needs to use the pressure difference of the liquid medicine to infuse the medicine liquid into the body in a sitting or lying posture in the infusion room of the hospital. Because the infusion restricts the patient's activities, the patient's anxiety increases and the long-term impact on the medical room is greatly reduced. Time occupation also reduces the utilization rate of medical resources. In addition, the drug delivery rate is affected by the infusion pressure, so it is very easy to cause the drug delivery rate to be unstable when the patient is moving. The speed of administration is reduced, and the infusion time is longer, which easily causes pain in patients; the speed of administration is too fast, which will cause local swelling of the patient's body, and is no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/145
CPCA61M5/14244A61M5/1452A61M2005/14506
Inventor 吴雪艳徐胜春苏彦艳焦轶吴连仲朱友余
Owner ANHUI MEDICAL UNIV