CN102402890A

CN102402890A - Model for simulating and demonstrating pathogenesis of pulmonary edema caused by mitral valve stenosis

Info

Publication number: CN102402890A
Application number: CN2011103905172A
Authority: CN
Inventors: 关真民; 鹿勇; 侯亚莉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-01
Filing date: 2011-12-01
Publication date: 2012-04-04

Abstract

The invention relates to a model for simulating and demonstrating the pathogenesis of pulmonary edema caused by mitral valve stenosis, belonging to a medical teaching facility, in particular to a teaching tool for demonstrating the pathogenesis of pulmonary edema caused by mitral valve stenosis. The teaching tool mainly comprises a conical pulmonary artery model, a branched pulmonary artery model, an alveolar wall capillary model, an alveolar model, a pulmonary vein model, a heart model, a mitral valve model and a mitral valve cusp adjustment switch which form a model system for simulating and demonstrating the pathogenesis of pulmonary edema caused by mitral valve stenosis. The device has a simple structure, is convenient to operate, can be used to teach intuitively and pellucidly and is beneficial to culturing the problem observing and analyzing capacity of the students.

Description

The simulation mitral stenosis causes pulmonary edema mechanism demonstrating model

Technical field

The invention belongs to medical teaching equipment, particularly demonstrate the teaching aid that mitral stenosis causes pulmonary edema mechanism demonstrating model.

Background technology

Do at two traditional points that lobe is narrow to be caused in the pulmonary edema mechanism teaching; The main instruction mode that adopts: two points do the narrow back → atrium sinistrum inflow of lobe left ventricle blood flow and are obstructed → atrium sinistrum in blood stagnation → pulmonary vein backflow obstruction → pulmonary venous pleonaemia, pulmonary edema; The corresponding clinical manifestation of reasoning then is like ^{[1] such as expiratory dyspnea, die Blausuchts.}Because the content complicacy is abstract, student's indigestion dynamic process.Main through pathological characteristic under pathology section examination pulmonary venous pleonaemia, the pulmonary edema mirror, its hemodynamics variation of student's indigestion in experimental teaching.Although multimedia teaching obtains widespread usage, the model teaching aid demonstration lets the student that impression more intuitively can be arranged.Through stimulating student's sense organ to make the student better understand knowledge ^[2]

Summary of the invention

The purpose of this invention is to provide a kind of simulation two points and do the narrow pulmonary edema mechanism demonstrating model that causes of lobe; Simple in structure, easy to operate, the teaching visual and understandable; Make abstract knowledge become vivid, become dynamic demonstration, can improve the ability of observation of students problem analysis by static state.

Realize that this practical new technique scheme is: mainly form by pulmonary conus model, pulmonary artery branch model, alveolus wall capillary model, alveolar model, pulmonary vein model, cardiac module, bicuspid valve model and lobe leaf by-pass cock.Pulmonary conus places the cardiac module top, joins with the pulmonary artery branch model.Alveolus wall capillary model one end connects the pulmonary artery branch model, and the other end connects the pulmonary vein model.The alveolar cinclides is corresponding with the capillary cinclides.The pulmonary vein model gets into the cardiac module atrium sinistrum.Mitral valve leaflet model top is the atrium sinistrum, and the below is a left ventricle.The mitral valve leaflet by-pass cock is regulated the open and close of mitral valve leaflet model, arrives the left ventricular blood flow to regulate the cardiac module atrium sinistrum.

Description of drawings

Fig. 1 is a structural representation of the present invention

Among the figure,

1-pulmonary conus model

2-pulmonary artery branch model

3-alveolus wall capillary model

4-alveolus wall capillary is observed aperture

5 alveolus wall blood capillary pores

6-alveolar cinclides

7-alveolar model

8-pulmonary vein model

The 9-bicuspid valve

10-mitral valve leaflet by-pass cock

11-cardiac module atrium sinistrum

12-cardiac module left ventricle

The right heart of 13-cardiac module

The 14-cardiac module

Embodiment

A specific embodiment of the present invention that provides through Figure of description below further describes its structure.

Referring to accompanying drawing 1, the pulmonary conus model 1 of this device places cardiac module 14 tops and pulmonary artery branch model 2 to join.Cardiac module 14 is divided into the right heart 13, atrium sinistrum 11, left ventricle 12.Alveolus wall capillary model 3 one ends and pulmonary artery branch model 2 join; The other end communicates with pulmonary vein model 8; Alveolar cinclides 6 is corresponding with alveolus wall blood capillary pore 5; Pulmonary vein model 8 gets into cardiac module atrium sinistrum 11, and mitral valve leaflet by-pass cock 10 is regulated the unlatching of bicuspid valve 9 with closed, to regulate the CBF that cardiac module atrium sinistrum 11 arrives left ventricle 12.

[0008]During use; Add clear water at pulmonary conus model 1; Get into alveolus wall capillary model 3 through pulmonary artery branch model 2 (light blue outward appearance simulation venous blood color); Observe aperture 4 entering pulmonary vein models 8 (outward appearance is a pale red simulation arterial blood color) through the alveolus wall capillary and enter into atrium sinistrum 11, arrive left ventricle 12 during through bicuspid valve 9 valve orifices.This system's mould has been simulated the process of pulmonary circulation.When rheumatism is invaded mitral valve; Can make that valve thickens, hardening; Cause bicuspid valve 9 valve orifices narrow (but analog regulation two lobe leaf switches 10 make the narrow gradually closure even of bicuspid valve 9 valve orifices); The result causes cardiac module atrium sinistrum 11 to flow to left ventricle 12 blood being obstructed, causing pulmonary vein model 8 extravasated blood, this moment alveolus wall capillary model 3 partially liqs (simulation edematous fluid); Flow in alveolar model 7 chambeies through alveolus wall blood capillary pore 5, alveolar cinclides 6, so far accomplished the presentation process that mitral stenosis causes pulmonary edema.

See that from the above-mentioned illustrative teaching plan of the present invention this apparatus structure is simple, easy to operate, visual in image, use is economical.Make mitral stenosis cause pulmonary congestion, edema with the lung involved kind mechanism, by complicacy to simple, by take out look like concrete, by static state to dynamic, make the student can dynamically understand the incidence and development process of its hemodynamic change, improved the ability of observation of students problem analysis.

List of references

[1] Wang Bin, old life is man. Pathology and Pathophysiology [M]. and the 6th edition. Beijing: People's Health Publisher .2009:161.

[2] Universities and Colleges in Beijing young teacher impart knowledge to students basic training match appraisement system and case study seminar. classroom instruction technical ability and evaluation [M]. Beijing: the .2011:127. of Higher Education Publishing House

Claims

1. a simulation mitral stenosis causes pulmonary edema mechanism demonstrating model, it is characterized in that mainly being made up of pulmonary conus model, pulmonary artery branch model, alveolus wall capillary model, alveolar model, pulmonary vein model, cardiac module, mitral leaflet model and by-pass cock thereof.

2. the pulmonary conus model places the cardiac module top, and joins with the pulmonary artery branch model, and alveolus wall capillary model one end connects the pulmonary artery branch model, and the other end connects the pulmonary vein model.

3. the alveolar cinclides is corresponding with alveolus wall blood capillary pore.

4. the pulmonary vein model gets into the cardiac module atrium sinistrum.

5. bicuspid valve model top is the atrium sinistrum, and the below is a left ventricle.

6. the mitral valve leaflet by-pass cock is regulated mitral open and close.

7. cause pulmonary edema mechanism demonstrating model by the described simulation mitral stenosis of claim 1; It is characterized in that it is light blue (simulation venous blood color) that pulmonary conus model, pulmonary artery branch model, alveolus wall capillary cope pattern branch, cardiac module right ventricle adopt transparent material and outward appearance, and alveolus wall capillary model the latter half, pulmonary vein model, cardiac module atrium sinistrum, left ventricle employing transparent material and outward appearance are pale red (simulation arterial blood color).

8. alveolar model, mitral valve leaflet model are white transparent material.