One-way valve and infusion device

A technology of an infusion device and a one-way valve, applied in the field of medical devices, can solve problems such as affecting the stability of liquid delivery, generating bubbles in the liquid, and affecting the quality of the liquid.

Pending Publication Date: 2019-09-06
SHENZHEN ANTMED CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will greatly change the flow path of the liquid, which will affect the stability of liquid delivery, cause the liquid to generate bubbles, and affect the quality of the liquid

Method used

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  • One-way valve and infusion device
  • One-way valve and infusion device

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0032] In the present in...

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Abstract

The invention discloses a one-way valve and an infusion device, wherein the one-way valve comprises: a first shell, provided with a liquid passage; a second shell connected to the first shell, whereinthe surface of the second shell opposite to the first shell is provided with a liquid chamber in recessed manner, the surface of the second shell facing the first shell is provided with a first mounting groove communicated with the liquid passage, and the second shell is provided with a liquid hole, in the periphery of the bottom wall of the liquid chamber, communicated with the bottom wall of the first mounting groove; and a seal which is arranged between the first shell and the second shell, wherein at least part of the seal is embedded in the first mounting groove so as to open or close the liquid hole such that the liquid passage is communicated or disconnected with the liquid chamber. The one-way valve prevents bubbles from generating during liquid delivery, so that liquid quality isimproved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a one-way valve and an infusion device using the one-way valve. Background technique [0002] Clinically, in order to prevent liquid backflow during infusion treatment or drainage of patients, check valves are widely used in medical devices such as syringes, tracheal intubations, and urinary catheters. At present, a gasket is provided in the channel of the gasket type check valve on the market, and the backflow liquid is stopped by the gasket. However, in the process of using the gasket type check valve, it is found that after the gasket is activated, the high-speed flowing liquid passes through the periphery of the gasket, and then flows into the liquid outlet channel of the check valve. In this way, the flow path of the liquid is greatly changed, thereby affecting the stability of liquid delivery, causing bubbles to be generated in the liquid, and affecting the qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M39/24A61M5/14
CPCA61M5/14A61M39/24A61M2039/242
Inventor 王五星于敬军王博森
Owner SHENZHEN ANTMED CO LTD
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