Method and device for measuring venous pressure without wound

A venous pressure measurement device technology, applied in the medical field, can solve problems such as unrepeatable pressure measurement, bacterial infection, and difficulty in implementation, and achieve the effects of convenient and satisfactory display, reduced impact, and convenient operation

Inactive Publication Date: 2003-01-15
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although puncture manometry is the best way to obtain correct data, it still has its fatal weakness in scientific research and clinical application
The first is that the manometry cannot be repeated. The second is that one-third of the patients will cause massive bleeding due to pu

Method used

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  • Method and device for measuring venous pressure without wound
  • Method and device for measuring venous pressure without wound
  • Method and device for measuring venous pressure without wound

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Embodiment Construction

[0021] The present invention is designed on the basis of Mosimann wall-attached pressure measurement technology. According to Laplace's law of fluid mechanics: T = P 1 - P 2 t R , where T is the vessel wall tension, P 1 is the intravascular pressure, P 2 is the external pressure of the blood vessel, t is the thickness of the blood vessel, and R is the radius of the blood vessel. Increased intravascular pressure is the initiating factor. The higher the intravascular pressure, the larger the blood vessel, the larger the caliber, the thinner the blood vessel, and the greater the tension of the blood vessel. When the tension increases beyond 15mmHg, the vessel wall will rupture and massive bleeding will occur. The possibility is 78% %. The applicant has found through experiments tha...

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Abstract

A method and equipment for measuring venous pressure without wound is disclosed. Said equipment is composed of air channel including air pump, air sensitive probe consisting of guide tube and capillary tube, circuit unit consisting of amplifier and A/D converter, and data processing unit consisting of computer and display. Said method features that the venous pressure is sensed by air sensitive probe and then transmitted via sensor to amplifier, A/D converter and computer sequentially. The result is displayed in waveform and numerals modes. Its advantages are simple method and high correctness.

Description

Technical field: [0001] The invention relates to the medical field, in particular to a method capable of measuring venous pressure and a device designed according to the method. Background technique: [0002] The determination of venous pressure is widely used clinically. Although puncture manometry is the best way to obtain correct data, it still has its fatal weakness in scientific research and clinical application. The first is that manometry cannot be repeated, the second is that one-third of patients will cause massive bleeding due to puncture, and the third is that puncture manometry may cause bacterial infection. In developed countries, this method has been abandoned. At the same time, in some parts such as the vena cava, esophageal varices, and pulmonary veins, puncture manometry is difficult to implement due to danger. Invention content: [0003] The technical problem to be solved by the present invention is to provide a non-invasive venous pressure measuring me...

Claims

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Application Information

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IPC IPC(8): A61B5/021
Inventor 朱晒红李益民刘浔阳
Owner CENT SOUTH UNIV
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