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Blood capillary refilling time measuring apparatus

A time measurement and capillary technology, applied in the direction of blood flow measurement, etc., can solve the problems of poor sensitivity and specificity, many influencing factors, no measurement methods, etc., and achieve the effects of avoiding human errors, fast and accurate measurement, and convenient use

Pending Publication Date: 2019-04-09
张志强
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Problems solved by technology

[0004] It is not difficult to trace the reasons why CRT is gradually abandoned in clinical practice. Its poor sensitivity and specificity may be related to factors such as many influencing factors, poor repeatability, and obvious observation errors. At present, there is no standard clinical measurement method

Method used

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  • Blood capillary refilling time measuring apparatus

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Embodiment Construction

[0018] as attached figure 1 As shown, the present invention mainly includes four parts, which are shell support, power module, pressing execution module and sensor module. The shell support includes a shell 1, a support plate 14 located below the shell 1, and a shell support 8 located on one side of the shell 1 for connecting the shell 1 and the support plate 14. The bottom plate of the shell 1 and the support plate 14 form a Space for fingers. The pressing actuator module is installed in the housing 1 , the power module is connected with the pressing actuator module to make the pressing actuator module realize the pressing action, and the sensor module on the lower support plate 14 is used to measure the filling condition of blood vessels.

[0019] The pressing execution module includes a connecting column 16 and a pressing piece 12 arranged at the lower end of the connecting column 16, a pressing plate 11 is fixedly connected to the top of the connecting column 16, and the ...

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Abstract

The invention relates to a blood capillary refilling time measuring apparatus which comprises a shell, a lower support plate below the shell, a pressing execution module mounted in the shell, a powermodule enabling the pressing execution module to realize pressing action, and a sensor module mounted on the lower support plate and used for measuring the blood capillary filling situation. Accordingto the blood capillary refilling time measuring apparatus, the power module pushes the pressing execution module to drain blood in a blood capillary of a finger, then, the pressing execution module has springback to refill the blood capillary of the finger, and the sensor is utilized to measure and record the time from draining the blood to refilling the blood capillary of the finger, so that a personal error is avoided, and measurement is faster and more precise; and in addition, the finger only needs to be put at a specific position during the measuring process, and the application is veryconvenient.

Description

technical field [0001] The invention relates to a capillary refill time measuring instrument. Background technique [0002] Capillary refill time (capillary refill time, CRT) is the time required for the distal capillaries to restore their original color after being compressed. It is the quantitative data obtained by clinicians through the capillary refill test. The most direct observation of capillary flow. [0003] As more and more studies have found that the normalization of central circulation parameters does not lead to a decrease in mortality, microcirculation has received more and more attention. Due to the existence of the compensatory mechanism of the human body, the blood flow of the peripheral skin and muscles is often sacrificed first and restored last, which can sensitively and accurately reflect the worst microcirculation state of the body. Capillary refill time measurement, a non-invasive and fast indicator, has once again attracted the attention of research...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/026
CPCA61B5/026
Inventor 王仲张志强苗佐栋
Owner 张志强
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