CN214847381U - Load teaching mode around heart - Google Patents
Load teaching mode around heart Download PDFInfo
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- CN214847381U CN214847381U CN202121151822.1U CN202121151822U CN214847381U CN 214847381 U CN214847381 U CN 214847381U CN 202121151822 U CN202121151822 U CN 202121151822U CN 214847381 U CN214847381 U CN 214847381U
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- heart
- guide pipe
- pressure sensor
- simulation device
- liquid storage
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Abstract
The utility model discloses a front and back load teaching model of a heart, which comprises a heart simulation device, a front load simulation device and a back load simulation device; the heart simulator is provided with a container provided with a piston chamber, a piston capable of reciprocating along the inner wall of the active chamber and a driving part connected with the piston; the preload simulation device comprises a liquid storage container and a first guide pipe, the liquid storage container is communicated with the piston chamber through the first guide pipe, and an opening is formed in the liquid storage container; the afterload simulation device comprises a first pressure sensor and a second guide pipe, the detection end of the first pressure sensor is connected with one end of the second guide pipe in a sealing mode, the other end of the second guide pipe is communicated with the piston chamber, and the second guide pipe has elasticity. The teaching model for the front and rear loads of the heart can simply and directly simulate the front and rear loads of the heart, so that students can clearly and really understand the definition of the front and rear loads of the heart, comprehensively understand the clinical common etiology and case of the increase of the front and rear loads, and further integrate and understand the relevant treatment and nursing measures.
Description
Technical Field
The utility model belongs to the technical field of teaching model, concretely relates to load teaching model around heart.
Background
Heart failure is a common medical critical syndrome of the circulatory system and is a medical disease that medical students must learn. When studying the pathogenesis of heart failure, understanding the increase of the front and back loads of the heart is the key and difficult content for medical students to master.
In the teaching process, students often have difficulty in understanding the front and back load mechanisms due to the complexity of the heart and the circulatory system and the defined abstraction, so that the difficulty is increased for the students to learn and teachers to teach, and the students can miss understanding of important contents.
Therefore, a teaching model is needed to assist teaching, so as to reduce the difficulty of student learning and teacher teaching, and facilitate the students to understand the teaching content.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem among the prior art, the utility model provides a load teaching mode around the heart can reduce the degree of difficulty that the student studied and the teacher taught, and the student of being convenient for understands the teaching content.
The utility model adopts the following technical scheme:
a heart front and back load teaching model comprises a heart simulation device, a front load simulation device and a back load simulation device;
the heart simulation device is provided with a container provided with a piston chamber, a piston capable of moving in a reciprocating manner along the inner wall of the active chamber and a driving part connected with the piston;
the preload simulation device comprises a liquid storage container and a first guide pipe, the liquid storage container is communicated with the piston chamber through the first guide pipe, and an opening is formed in the liquid storage container;
the afterload simulation device comprises a first pressure sensor and a second guide pipe, the detection end of the first pressure sensor is connected with one end of the second guide pipe in a sealing mode, the other end of the second guide pipe is communicated with the piston chamber, and the second guide pipe has elasticity.
As a further improvement of the technical scheme of the utility model, the bottom of the liquid storage container is higher than the highest point of the piston chamber.
As a further improvement of the technical scheme of the utility model, the stock solution container is transparent.
As a further improvement of the technical proposal of the utility model, the liquid storage container is provided with capacity scales.
As a further improvement, the driving portion is provided with a second pressure sensor for detecting the pressure received by the driving portion.
As a further improvement of the technical proposal of the utility model, the driving part is a handle.
As a further improvement of the technical scheme of the utility model, the drive portion is electronic vaulting pole.
As a further improvement of the technical solution of the present invention, the present invention further includes a display electrically connected to the first pressure sensor and the second pressure sensor for displaying a pressure value of the first pressure sensor and the second pressure sensor.
Compared with the prior art, the beneficial effects of the utility model are that:
the teaching model for the front and back loads of the heart can simply and directly simulate the front and back loads of the heart, so that students can clearly and really understand the definition of the front and back loads of the heart (the front load is a volume load, and the back load is a pressure load), so that the students can comprehensively understand the common clinical etiology and case of the increase of the front and back loads, and further, the teaching model can thoroughly understand the related treatment and nursing measures.
Drawings
The technology of the present invention will be further described in detail with reference to the accompanying drawings and detailed description:
FIG. 1 is a schematic diagram of the overall structure of the teaching model for load before and after heart.
Reference numerals:
1-a heart simulator; 11-a container; 111-a piston chamber; 12-a piston; 13-a drive section;
2-a preload simulation device; 21-liquid storage container; 211-an opening; 212-volume scale; 22-a first conduit;
3-afterload simulation means; 31-a first pressure sensor; 32-second conduit.
Detailed Description
The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.
Referring to fig. 1, a teaching model of pre-and post-load of heart includes a heart simulator 1, a pre-load simulator 2, and a post-load simulator 3.
The heart simulator 1 is provided with a container 11 having a chamber 111 for a piston 12, a piston 12 which is reciprocatingly movable in close contact with an inner wall of the active chamber, and a driving unit 13 connected to the piston 12. In one embodiment, the movement of the piston 12 is up and down.
The preload simulator 2 comprises a liquid storage 2111 and a first conduit 22, wherein the liquid storage 2111 is communicated with the chamber 111 of the piston 12 through the first conduit 22, and the liquid storage 2111 is provided with an opening 211.
The afterload simulator 3 includes a first pressure sensor 31 and a second conduit 32, a detection end of the first pressure sensor 31 is connected with one end of the second conduit 32 in a sealing manner, the other end of the second conduit 32 is communicated with the interior of the chamber 111 of the piston 12, and the second conduit 32 has elasticity. In one embodiment, the second conduit 32 is a rubber tube.
The teaching model for the front and back loads of the heart can simply and directly simulate the front and back loads of the heart, so that students can clearly and really understand the definition of the front and back loads of the heart (the front load is a volume load, and the back load is a pressure load), so that the students can comprehensively understand the common clinical etiology and case of the increase of the front and back loads, and further, the teaching model can thoroughly understand the related treatment and nursing measures.
The working principle of the teaching model for the load before and after the dirtiness is briefly described as follows:
1. a liquid, such as water, preferably colored water, may be added to the reservoir 2111, the water from the reservoir 2111 being fed through the first conduit 22 to the chamber 111 of the piston 12, the addition of water being stopped when there is still water in the reservoir 2111 when the chamber 111 of the piston 12 becomes maximum;
2. the piston 12 is lifted to the maximum by the driving unit 13, and at this time, before the simulated myocardial contraction, the pressure applied to the driving unit 13 corresponds to the end diastole of the ventricle, that is, the simulated cardiac preload. By adding liquid to the reservoir 2111, that is, by increasing the pseudo blood volume, the force required to move the piston 12 by the driving unit 13 also needs to be increased at this time, that is, the heart load is increased by the increase in the pseudo blood volume, so that the student can understand the cause of the increase in the heart load due to the increase in the blood volume.
3. When the second catheter 32 is pinched by hand, the cross section of the second catheter 32 is reduced to increase the simulated vascular resistance, and at this time, the pressure of the first pressure sensor 31 connected to the second catheter 32 is increased, that is, the afterload is increased, and correspondingly, when the piston 12 is pulled, the force required for moving the piston 12 by the driving unit 13 is also increased, that is, the simulated vascular resistance is increased to increase the cardiac load, so that the student understands that the increase in vascular resistance increases the cardiac load.
The bottom of the reservoir 2111 is higher than the highest point of the chamber 111 of the piston 12, so that the liquid in the reservoir 2111 can be conveniently introduced into the chamber 111 of the piston 12.
Preferably, the liquid storage container 2111 is transparent, so that the change of the liquid level in the liquid storage container 2111 can be conveniently observed, and students can understand the increase of the pressure required by the driving part 13 caused by the increase of the liquid level after adding water. More preferably, the liquid storage container 2111 is provided with a volume scale 212 for further convenient observation.
Preferably, the driving part 13 is provided with a second pressure sensor for detecting the pressure applied to the driving part 13, so that students can conveniently confirm the increase of the cardiac preload through the detection data of the second pressure sensor.
In one embodiment, the driving portion 13 is a handle, and the change of the force required by the manual driving can be directly sensed by the operator by manually driving the piston 12 to descend and ascend.
In one embodiment, the driving part 13 is an electric support rod, which can automatically drive the piston 12 to descend, and is more automatic. One end of the electric stay bar is fixed on the bracket and applies force downwards.
Preferably, the pressure measuring device further comprises a display electrically connected with the first pressure sensor 31 and the second pressure sensor, and the display is used for displaying the pressure values of the first pressure sensor 31 and the second pressure sensor, displaying data detected by the two pressure sensors in real time, and being more intuitive.
Other contents of the load teaching model before and after the heart of the utility model are referred to in the prior art and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A load teaching model around heart which characterized in that: comprises a heart simulation device, a front load simulation device and a back load simulation device;
the heart simulation device is provided with a container provided with a piston chamber, a piston capable of moving in a reciprocating manner along the inner wall of the piston chamber and a driving part connected with the piston;
the preload simulation device comprises a liquid storage container and a first guide pipe, the liquid storage container is communicated with the piston chamber through the first guide pipe, and an opening is formed in the liquid storage container;
the afterload simulation device comprises a first pressure sensor and a second guide pipe, the detection end of the first pressure sensor is connected with one end of the second guide pipe in a sealing mode, the other end of the second guide pipe is communicated with the piston chamber, and the second guide pipe has elasticity.
2. The intracardiac preload teaching model according to claim 1, wherein: the bottom of the liquid storage container is higher than the highest point of the piston chamber.
3. The intracardiac preload teaching model according to claim 1, wherein: the liquid storage container is arranged in a transparent mode.
4. The intracardiac preload teaching model according to claim 3, wherein: the liquid storage container is provided with capacity scales.
5. The intracardiac preload teaching model according to claim 1, wherein: and the driving part is provided with a second pressure sensor for detecting the pressure borne by the driving part.
6. The intracardiac preload teaching model according to claim 5, wherein: the driving part is a handle.
7. The intracardiac preload teaching model according to claim 5, wherein: the driving part is an electric support rod.
8. The intracardiac preload teaching model according to claim 5, wherein: the pressure sensor also comprises a display electrically connected with the first pressure sensor and the second pressure sensor and used for displaying the pressure values of the first pressure sensor and the second pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121151822.1U CN214847381U (en) | 2021-05-26 | 2021-05-26 | Load teaching mode around heart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121151822.1U CN214847381U (en) | 2021-05-26 | 2021-05-26 | Load teaching mode around heart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214847381U true CN214847381U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121151822.1U Active CN214847381U (en) | 2021-05-26 | 2021-05-26 | Load teaching mode around heart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214847381U (en) |
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2021
- 2021-05-26 CN CN202121151822.1U patent/CN214847381U/en active Active
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