A high-efficiency isolated heart perfusion device
A perfusion and in vitro technology, applied in blood flow measurement, medical science, surgery, etc., can solve the problems of unstable heart fixation, inaccurate position of perfusion needle inserted into the aorta, etc., to reduce the time to adjust the position of the perfusion needle, Reduced fixed time, cleverly structured effect
Inactive Publication Date: 2020-03-17
黄琼艳
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Problems solved by technology
[0004] In view of the above situation, in order to make up for the technical deficiencies in the prior art, the purpose of the present invention is to provide a high-efficiency isolated heart perfusion device, which effectively solves the problem of the heart being not firmly fixed and the perfusion needle inserted into the aorta in the existing perfusion device. inaccurate location problem
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[0020] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0021] Depend on Figure 1 to Figure 11 Provide, the present invention comprises frame body 1, frame body 1 front is fixed with fixed rod 3, is hinged with movable rod 4 on fixed rod 3, does not contact between the upper end of fixed rod 3 and movable rod 4, fixed rod 3 and movable rod The lower ends of 4 are sharp ends, and the two sharp ends form a clamping end, forming a clamp that is opened between the upper ends of the movable rod 4 and the fixed rod 3 and the lower ends are clamped;
[0022] The rear of the movable rod 4 is fixed with a reel 7 that rotates coaxially with the movable rod 4. There is a dial pin 8 on the end face of the reel 7. There is a rotating pin on the frame body 1 that is located on the left side of the reel 7. The disc 9 is provided with an opening groove 10 on the outer edge of the disc 9, a...
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Provided is an efficientisolated heart perfusion device. The problem is effectively solved that an existing perfusion device makes heart fixation insecure and the position for inserting a perfusion needle into the aorta is inaccurate. The efficientisolated heart perfusion device comprises a frame body, a fixed rod is fixed in front of the frame body, and a movable rod is hinged to the fixed rod toform a clamp with opened upper ends and lower ends for clamping. A winding wheel is fixed behind the movable rod and is provided with a shifting pin, the frame body is provided with a disc located onthe left side of the winding wheel, the disc is provided with an open groove and a connecting rod, one end of the connecting rod is fixed to the disc, the other end of the connecting rod is providedwith a cross beam capable of vertically sliding on the frame body, and a perfusion needle is fixed below the cross beam. A rolling wheel is arranged on the right side of the winding wheel, a rope is arranged between the winding wheel and the rolling wheel, a rolling wheel shaft is provided with a spring, a shifting rod is fixed to the end face of the rolling wheel, the upper end of the shifting rod penetrates through the cross beam and is arranged above the cross beam, and the cross beam can perform left-right slide on the frame body. The efficientisolated heart perfusion device is novel in concept, ingenious in structure and simple in operation and improves the efficiency of a perfusion experiment.
Description
technical field [0001] The invention relates to the technical field of perfusion devices, in particular to a high-efficiency isolated heart perfusion device. Background technique [0002] In the isolated heart perfusion experiment, the heart of the animal is taken out, connected to a specific perfusion device, and perfused with perfusate, excluding the control of nerves and body fluids, with special analysis software to record ventricular pressure, arterial blood pressure and ECG signals, and automatically analyze various Physiological parameters, used in the study of cardiac function and hemodynamic changes under pathophysiological conditions, have been widely used in physiological, pathophysiological and pharmacological research. [0003] At present, when performing heart perfusion experiments, it is necessary to manually insert the perfusion needle into the aorta of the isolated heart, and then temporarily fix the heart on the perfusion needle with an arterial clamp, and ...
Claims
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Login to View More IPC IPC(8): A61B90/00A61B5/02A61B5/026
CPCA61B5/02A61B5/02028A61B5/026A61B90/00
Inventor 黄琼艳蒋军张大伟程珊王琳赵越
Owner 黄琼艳