Experimental device for changing toad heart afterload

An experimental device and afterload technology, applied in applications, veterinary instruments, veterinary surgery, etc., can solve the problem of increased experimental costs, distortion of posterior vena cava cannula and arterial cannula, lack of experimental records and experimental results, etc. Problems, to achieve the effect of saving time and effort in experimental operation, avoiding the output tube being too long, and improving the success rate of the experiment
CN102274078BInactive Publication Date: 2013-06-12SHENYANG MEDICAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG MEDICAL COLLEGE
Publication Date
2013-06-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an experimental device for changing toad heart afterload, and mainly solves the technical difficulty that the existing experimental device does not conform to the physiological status and clinical practices of a body. The experimental device comprises an arterial cannula, a main output pipe, a main pipe, a main pipe sleeve, side pipes, side pipe sleeves, output pipes and plugs. In use, the two ends of the main output pipe are respectively connected with the M ends of the arterial cannula and the main pipe, and the output pipes of different sizes can be optionally connected with or dismounted from the corresponding side pipes. The output quantity of a certain output pipe is measured, when required, by firstly connecting the output pipes and the corresponding side pipes and simultaneously closing all of the other side pipes with the corresponding plugs. The experimental device provided by the invention uses the output pipes of different sizes to manifest the degree of arteriostenosis and reflect the change in peripheral blood resistance and the change in heart afterload. The experimental device has the characteristics of reasonable and compact structure and accurate measurement, and is simple for operation.
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Description

Technical field:

[0001] The invention relates to a frog heart perfusion experimental device for functional science of basic medicine, in particular to an experimental device for changing toad heart afterload. Background technique:

[0002] Factors affecting heart function and treatment of heart failure are routine experimental items in basic medical functional experiments in all medical colleges. In this experiment, the effect of afterload changes on toad heart function is one of the important observation indicators. At present, the frog heart perfusion experimental devices used in various medical schools are not the same, but the method of changing the cardiac afterload is basically the same, that is, the increase of peripheral resistance is reflected by raising the height of the output tube. The issue is:

[0003] (1) By raising the height of the output tube, that is, through the external atmospheric pressure and the gravity of the fluid in the lumen to reflect the increa...

Claims

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