CN2602447Y - Teaching instrument of heart valve open and close and blood stream direction - Google Patents

Abstract

The utility model pertains to a teaching demonstrating module, relating to an open and close and blood flowing dir consists of a transparent hear model, two lighting bulbs and a control circuit; wherein the lighting bulbs are arranged in the hear model; the heart model is arranged in a stand, where is provided with a power switch; the power switch control the light in the hear model to open and close; the bulbs have two different colors, so as to denote blood flowing in the artery and the vein respectively; and the valve in the heart model is an electric valve. The utility model is easy to manufacture and has an excellent dynamitic demonstration close and open of the heart valve and flood flowing direction in the heart, thus enhancing the teaching effect.

Description

Cardiac valves opens and closes and the blood flow direction Teaching instrument

Technical field

The utility model belongs to the teaching demonstration model, relates to a kind of anatomy cardiac valve and opens and closes and the blood flow direction Teaching instrument.

Background technology

When now anatomy is given lessons cardiac valves opened and closed and the demonstration of blood flow direction, mainly be with static cardiac module, be described by the teacher is oral, this teaching method can not reflect blood flow direction in cardiac valves switching and the heart intuitively, thereby does not reach better teaching.

Technology contents

The purpose of this utility model provides a kind of blood flow direction Teaching instrument in cardiac valves switching and the heart of dynamically demonstrating, to overcome the deficiencies in the prior art.The utility model by a transparent cardiac module and and the emitting bulb (pipe) and the control circuit that are installed in the model form, cardiac module is installed on the base, power switch is installed on the base, the open and close of the light in the controlling models and the open and close of valve, in cardiac module, the bulb that two kinds of colors are arranged, in order to the flowing of the artery and vein blood of expression heart, the valve of cardiac module adopts solenoid valve respectively.The utility model is easy to make, and the dynamic demonstration cardiac valves opens and closes and the interior blood flow direction of heart well, thereby improves teaching efficiency.

Description of drawings

Accompanying drawing is a structural representation of the present utility model

Specific embodiment

1 is transparent cardiac module of the present utility model among the figure, be installed on the base 2, arterial blood in the cardiac module 1 and venous blood are represented with having luminous red bulb 3 and the blue bulb 4 of time-delay respectively, all valves are made of coloured plastics material, solenoid valve is housed, lamp and solenoid valve are connected with control circuit on being installed in base 2, control circuit is by the switch Control work, switch has three, switch 10, switch 11, switch 12, switch 10 is for shrinking switch, control bicuspid valve 7, the solenoid valve of tricuspid valve 8, left ventricle are to aortal red bulb 3, and right ventricle is to Pulmonic blue bulb 4, switch 11 is the diastole switch, control aortic valve 5 solenoid valves, cusps of pulmonary valve 6 solenoid valves, atrium sinistrum are to the red bulb 3 of left ventricle, and the atrium dextrum is to the blue bulb 4 of right ventricle.One illuminating lamp all is installed on each valve, and illuminating lamp is by switch 12 controls.During use, the power connection on the base, open switch 12, connect illuminating lamp, each valve all is in open configuration, open switch 11, aorta petal and pulmonary valve are closed, and bicuspid valve and tricuspid valve are open, the atrium sinistrum is bright to the red light of left ventricle, to show that arterial blood flows into left ventricle by the atrium sinistrum, the atrium dextrum is to the Lan Dengliang of right ventricle, to show that venous blood is from the atrium dextrum to the right ventricle.Open switch 10, shut switch 11, at this moment bicuspid valve, TC, aorta petal, pulmonary valve are opened, and left ventricle is bright to aortal red light, to show that arterial blood is from the left ventricle to the sustainer, right ventricle to Pulmonic blue lamp bright, with show venous blood by right ventricle to pulmonary artery.Thereby can demonstrate cardiac valves opens and closes and blood flow direction.

Demonstration for convenience, transparent cardiac module of the present utility model can be installed on the base 2 by a coupling shaft, and lead passes each parts of connection in axle.

Claims (2)

1, a kind of cardiac valves opens and closes and the blood flow direction Teaching instrument, form by cardiac module (1), cardiac module (1) is installed on the base (2), it is characterized in that: arterial blood in the cardiac module (1) and venous blood are respectively with having luminous red bulb (3) of time-delay and blue bulb (4) expression, all valves are made of coloured plastics material, illuminating lamp all is installed, and solenoid valve is housed, lamp and solenoid valve are connected with control circuit on being installed in base (2).

2, a kind of cardiac valves according to claim 1 opens and closes and the blood flow direction Teaching instrument, it is characterized in that: control circuit is an on-off circuit, switch has three, switch (10), switch (11), switch (12), switch (10) control bicuspid valve (7), the solenoid valve of tricuspid valve (8), left ventricle is to aortal red bulb (3), right ventricle is to Pulmonic blue bulb (4), switch (11) control aortic valve (5) solenoid valve, cusps of pulmonary valve (6) solenoid valve, the atrium sinistrum is to the red bulb (3) of left ventricle, and the atrium dextrum is to the blue bulb (4) of right ventricle, and illuminating lamp is controlled by switch (12).

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