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Pressure indicator

An indicator and pressure technology, applied in the direction of measuring fluid pressure, instruments, pressure difference measurement between multiple valves, etc., can solve the problems that cannot meet the needs of accurate pressure measurement, small pressure indication range, insufficient adaptability, etc., to achieve Wide range of pressure indication, strong adaptability and strong distinguishability

Inactive Publication Date: 2014-02-19
天津市百宜国际贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the above three pressure indicators have the following common defects: (1) The pressure indication range is small and the adaptability is insufficient; (2) Although the structure is simple, the accuracy is insufficient and cannot meet the needs of precise pressure measurement

Method used

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Embodiment

[0042] A pressure indicator, the structure of which is as figure 1 As shown, it is composed of an upper cover 1, an intermediate member 2, an elastic pressure-sensitive diaphragm 3, a transmission indicator rod 4 and a lower cover 5. The structures of each of the components are as follows:

[0043] The upper cover 1, such as figure 2 , image 3 and Figure 4 As shown, a one-way valve 1-2 is provided inside it, and its outer wall and the one-way valve 1-2 jointly form an upper port 1-1, and its shoulder is provided with a circle of annular grooves 1-6, an air passage communicating with the atmosphere. The opening of 1-5 is set in the annular groove 1-6, and the positioning protrusion 1-7 of the upper cover 1 is connected with the positioning groove 2-3 of the intermediate member 2;

[0044] In the middle member 2, the lower port 2-2 is bonded to the circumferential flange 3-1 of the elastic pressure-sensitive diaphragm 3, and the lower surface 3-3 of the elastic pressure-se...

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Abstract

The invention discloses the structure of a pressure indicator. The pressure indicator comprises an upper cover, a middle component, an elastic pressure induction membrane, a transmission indicating rod and a lower cover, wherein a one-way valve is arranged inside the upper cover, the outer wall of the upper cover and the one-way valve jointly form an upper opening, the upper cover and the middle component jointly form an atmosphere channel communicated to the atmosphere, the lower port of the middle component is glued to the peripheral flange of the elastic pressure induction membrane, the elastic pressure inductance membrane structure is designed to be a circular slice and is 0.1mm-2.0mm in width, the lower surface of the elastic pressure induction membrane is provided with a groove matched with the supporting end of the transmission indicating rod which comprises the supporting end, a connecting rod, holes and an indicating end, and the elastic pressure inductance membrane is provided with an annular reinforcing rib and a longitudinal reinforcing rib which are made of rubber or silicon rubber or TPE or other high-elasticity polymer materials. The pressure indicator is wide in pressure indicating range, high in accuracy, visual, capable of being matched with equipment provided with an air bag or a water bag for use, and especially suitable for laryngeal masks, trachea cannulas, urinary catheters and other medical instruments.

Description

technical field [0001] The invention relates to a pressure measuring and indicating device, which is mainly used for measuring and indicating the internal pressure of an air bag or a water bag in a medical device, especially a pressure measuring and indicating pressure of a laryngeal mask, an endotracheal tube or a urinary catheter indicator. Background technique [0002] Air bags and water bags are widely used in the field of medical devices, such as endotracheal tubes, laryngeal masks, urinary catheters and other medical devices, which play the role of sealing the body cavity and fixing devices. The detection of sac pressure is very important, and it is necessary to detect its pressure at any time in clinical practice. [0003] Due to its clinical application value, pressure indicators have attracted great attention from medical workers and the medical device industry. Due to the simple structure and function of ordinary pressure indicators. Therefore, in recent years, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/10G01L13/02
Inventor 邹德伟
Owner 天津市百宜国际贸易有限公司
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