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Pump and method for expansion elasticity of pump membrane

A diaphragm and pump casing technology, applied in the field of diaphragm pumps, can solve problems such as limiting the stroke length of the diaphragm, the maximum pump pressure fatigue life of the diaphragm pump, and limiting the elastic deformation capacity of the diaphragm.

Active Publication Date: 2017-05-03
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(The outer edge of the film in this case is not fixed) This design limits the elastic deformation capacity of the film and also limits the stroke length of the film
The pump area limits the maximum pump pressure of the diaphragm pump (because the pump area and the pump force will jointly limit the maximum pump pressure) and fatigue life
Another problem is that when the flat membrane is matched to the concave or flat surface of the cavity, noise will be generated, at the same time, the stroke will stop immediately to generate mechanical vibration

Method used

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  • Pump and method for expansion elasticity of pump membrane
  • Pump and method for expansion elasticity of pump membrane
  • Pump and method for expansion elasticity of pump membrane

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Embodiment Construction

[0030] The disclosed specific embodiments are described in conjunction with the accompanying drawings. However, the disclosed content can be expressed in many different ways, and is not limited to the forms disclosed here. Of course, these embodiments are provided so that the disclosure will be comprehensive and complete, and fully convey the protection scope of the present invention to those skilled in the art. The terminology used in the detailed description of the embodiments explained in the drawings is not used to limit the disclosed content. In the drawings, like reference numerals refer to like elements.

[0031] The following description is devoted to describing the diaphragm element and the diaphragm pump in the disclosed embodiments of the present invention. Diaphragm pumps are used as sampling pumps for devices used in patient monitoring, respiratory monitoring, anesthesia monitoring, especially medical ventilation monitoring and as gas analyzers for monitoring th...

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PUM

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Abstract

A pump comprising a pump housing member (1) having a chamber (21) with inner walls and an open end having a first area (25), the pump housing member (1) comprises an enlarged surface surrounding the open end of the chamber (21). The pump further comprises a second pump housing member (5) and a membrane element (32) with a second area (27). The membrane element (32) has a first central section having a third area (28) with same size as the first area (25) of the open end of the chamber (21). The membrane element (32) is arranged on the pump housing element (1) with the first central section positioned over the open end, forming a sealed chamber. A portion of the membrane element (32) is slidably clamped between the enlarged surface and the second pump housing member (5).

Description

technical field [0001] The present invention relates generally to the field of diaphragm pumps. The invention particularly relates to a diaphragm pump used as a sampling pump in patient monitoring, respiratory monitoring, and anesthesia monitoring equipment, especially in medical ventilation monitoring and gas analyzers for monitoring patient respiratory gas components. Background technique [0002] The diaphragm pump has the advantages of simple structure, compactness and good sealing. Therefore, diaphragm pumps are widely used in medical equipment and biochemical analysis as sampling pumps for fluid analysis. In the field of medical ventilation monitoring, the gas measurement module analyzes the gas collected by the diaphragm pump from the patient's breathing circuit, and monitors the composition of the gas in the patient's breathing circuit in real time to obtain the patient's status. At present, gas measurement modules tend to be miniaturized and have better stability ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/00F04B43/02F04B17/04
CPCF04B43/0054F04B43/02
Inventor 约翰·沃纳乔金·加布里尔森
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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