CN112837594A - Heart rhythm demonstration model capable of adjusting beating rhythm - Google Patents
Heart rhythm demonstration model capable of adjusting beating rhythm Download PDFInfo
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- CN112837594A CN112837594A CN202110178742.3A CN202110178742A CN112837594A CN 112837594 A CN112837594 A CN 112837594A CN 202110178742 A CN202110178742 A CN 202110178742A CN 112837594 A CN112837594 A CN 112837594A
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- 210000002216 heart Anatomy 0.000 title claims abstract description 67
- 238000010009 beating Methods 0.000 title claims abstract description 27
- 210000002837 heart atrium Anatomy 0.000 claims abstract description 184
- 230000002861 ventricular Effects 0.000 claims abstract description 123
- 230000001746 atrial effect Effects 0.000 claims description 65
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
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- 210000001308 heart ventricle Anatomy 0.000 claims 11
- 230000001105 regulatory effect Effects 0.000 claims 7
- 230000008602 contraction Effects 0.000 abstract description 20
- 230000010247 heart contraction Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
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- 238000004088 simulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000003205 diastolic effect Effects 0.000 description 2
- 230000001121 heart beat frequency Effects 0.000 description 2
- 210000005246 left atrium Anatomy 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 210000001147 pulmonary artery Anatomy 0.000 description 2
- 210000005245 right atrium Anatomy 0.000 description 2
- 210000005241 right ventricle Anatomy 0.000 description 2
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- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
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- 210000005242 cardiac chamber Anatomy 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
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Abstract
The invention discloses a heart rhythm demonstration model capable of adjusting a beating rhythm in the technical field of heart beating models, which comprises a ventricular cavity cover, a closed cavity in the shape of a ventricle on the outer part, a plurality of ventricular elastic strips uniformly and fixedly connected on the inner wall, and a ventricular limiting shaft fixed in the inner part, wherein a ventricular tension wheel is rotatably arranged on the ventricular limiting shaft, the other ends of the ventricular elastic strips are fixedly connected with the ventricular tension wheel, the heart beating rhythm can be simulated, and the contraction and relaxation of the ventricle and the atrium of the heart beat can be displayed. The manufacturing is simpler, the display is more visual, and the carrying is more convenient.
Description
Technical Field
The invention relates to the technical field of heart beat models, in particular to a heart rhythm demonstration model capable of adjusting beat rhythms.
Background
The heart's primary function is to provide the motive force for blood flow to the various parts of the body. The human heart is located in the lower left part of the chest, and has a volume about equivalent to the size of a fist and a weight of about 250 g. The heart of a woman is generally smaller and lighter than the heart of a man.
The human heart is shaped like a peach, is positioned above the diaphragm and between the two lungs, is slightly left, is in the middle of the chest cavity, is slightly lower left, is conical, has the size approximately equal to that of a fist of the user, is internally provided with four cavities, and has an atrium at the upper part and a ventricle at the lower part. The relaxation and contraction of the atria and ventricles push the blood circulation through the body.
The heart contracts and relaxes once, called a cardiac cycle, which includes four processes of atrial contraction, atrial relaxation, ventricular contraction and ventricular relaxation, and normal heartbeats are of fixed frequency and sequence.
The heart beat (heartbeat), as the name suggests, is the beat of the heart, and the venous blood of the whole body is accomodate to the right atrium, pumps from the pulmonary artery through the right ventricle, and what flow in the pulmonary artery is venous blood at this moment, through the gas exchange in the lung, becomes the arterial blood that contains abundant oxygen, sends to the left atrium to the pulmonary vein, and each tissue organ of the whole body is in order to satisfy its needs of normal physiological activity to rethread left ventricle's aortic pump.
When the heart is in diastole, the internal pressure is reduced, the vena cava blood flows back into the heart, when the heart is in systole, the internal pressure is increased, the blood is pumped to the artery, and each contraction and diastole of the heart forms a cardiac cycle. The first in a cardiac cycle is a two-atrial contraction, in which the right atrium contracts slightly before the left atrium; the two ventricles contract after the atria begin to relax, while the contraction of the left ventricle is slightly earlier than that of the right ventricle, then the ventricles relax, and the atria begin to contract again at the late stage of the diastole of the ventricles; the heartbeat sequence is thus: atrial contraction, atrial relaxation, ventricular contraction, ventricular relaxation, which is the normal cardiac cycle of the heart beat.
While some people's heart beat rhythm is abnormal, there is currently no good way to demonstrate such beats.
Based on the above, the invention designs a heart rhythm demonstration model capable of adjusting the beat rhythm to solve the problems.
Disclosure of Invention
The invention aims to provide a heart rhythm demonstration model capable of adjusting a beating rhythm, which can simulate the rhythm of heart beat and show the contraction and relaxation of heart chambers and atria of the heart beat.
The invention is realized by the following steps: a model for demonstrating a heart rhythm capable of modulating a beating rhythm, comprising:
the outer part of the ventricular cavity cover is a closed cavity in the shape of a ventricle, the inner wall of the ventricular cavity cover is uniformly and fixedly connected with a plurality of ventricular elastic strips, a ventricular limiting shaft is fixed in the ventricular cavity cover, a ventricular tension wheel is rotatably arranged on the ventricular limiting shaft, and the other ends of the ventricular elastic strips are fixedly connected with the ventricular tension wheel;
the atrium chamber cover is a closed chamber body with an atrium shape, the inner wall of the atrium chamber cover is uniformly and fixedly connected with a plurality of atrium elastic strips, an atrium limiting shaft is further fixed in the atrium chamber cover, an atrium tension wheel is rotatably arranged on the atrium limiting shaft, and the other ends of the atrium elastic strips are fixedly connected with the atrium tension wheel;
the fixed shaft is a straight shaft and is fixedly arranged between the ventricular cavity cover and the atrial cavity cover;
the adjusting rod is a loop bar, can be rotatably sleeved on the fixed shaft, can be inserted and drawn out and is arranged between the ventricular chamber cover and the atrial chamber cover in a sliding manner, one end of the adjusting rod is arranged outside the ventricular chamber cover and the atrial chamber cover, the other end of the adjusting rod is telescopically arranged on the fixed shaft of the ventricular chamber cover and the atrial chamber cover in a sliding manner, a plurality of groups of ventricular rotating rods and a plurality of groups of atrial rotating rods are arranged on the adjusting rod, and the plurality of groups of ventricular rotating rods and the plurality of groups of atrial rotating rods are arranged in the inner cavities of the;
the outer ends of the ventricle rotating rod and the atrium rotating rod are both in hook-shaped structures,
one ends of the ventricle tension wheel and the atrium tension wheel, which are close to the adjusting rod, are hook-shaped deflector rods;
each ventricle rotating rod can be separated and mutually shifted with the ventricle folding and expanding wheel, and each atrium rotating rod can be separated and mutually shifted with the atrium folding and expanding wheel;
when the atrial tension wheels at the corresponding positions of each group block the rotation paths of one group of atrial rotation rods, the ventricular tension wheels at the corresponding positions block the rotation paths of the corresponding group of ventricular rotation rods;
the ventricle rotating rods in the same group are not positioned on the adjusting rod cambered surface between the atrium rotating rods.
Furthermore, the number of the ventricle rotating rods and the atrium rotating rods corresponding to the positions is at least four groups, and the number proportion of the ventricle rotating rods and the atrium rotating rods in each group is fixed and different;
the number ratio of the ventricle rotating rods to the atrium rotating rods in the first group corresponding to the positions is 1: 1;
the number ratio of the ventricle rotating rods to the atrium rotating rods in the second group corresponding to the positions is 1: 2;
the number ratio of the ventricle rotating rods to the atrium rotating rods in the third group corresponding to the positions is 1: 3;
the number ratio of the ventricle rotating rods to the atrium rotating rods in the fourth group corresponding to the position is 1: 4.
Further, the number of the ventricular rotation rods in each group is one.
Furthermore, the plurality of ventricular elastic strips are tensioned and fixed on the inner wall of the ventricular cavity cover, and are tensioned between all jumping positions of the ventricles and the ventricular tension wheel;
the atrium elastic strips are tightly fixed on the inner wall of the atrium chamber cover, and the atrium elastic strips are tightly arranged between the full-beating position of the atrium and the atrium tension wheel.
Further, the ventricular elastic strip and the atrial elastic strip are strip-shaped spring strips.
Furthermore, the atrium contracting and expanding wheel is arranged on the atrium limiting shaft in a non-sliding mode through a bearing, and the ventricle contracting and expanding wheel is arranged on the ventricle limiting shaft in a non-sliding mode through a bearing.
Furthermore, the adjusting rod is in transition fit with the fixed shaft.
Furthermore, the ventricular chamber cover and the atrial chamber cover are integrally sealed cavities made of rubber, and stainless steel reinforcing ribs are arranged at the joint between the ventricular chamber cover and the atrial chamber cover.
Furthermore, the adjusting rod is arranged at one end outside the ventricular chamber cover and the atrial chamber cover and is further fixed with a rotating handle which is of a sheet structure, the adjusting rod outside the ventricular chamber cover and the atrial chamber cover is also etched with a heart rhythm mark, and the mark of the heart rhythm mark corresponds to the ratio of each group of ventricular rotating rods and each group of atrial rotating rods one to one.
The invention has the beneficial effects that: 1. the invention does not use electronic products, has high reliability, convenient use and carrying, more applicable environments and can adjust and display different heart beat rhythms only by shaking hands;
2. the device ensures that the ventricle rotating rods and the atrium rotating rods of different groups are matched by pulling and pulling the adjusting rods, so as to adjust different beating rhythms of the ventricle cavity cover and the atrium cavity cover, be used for simulating heart beating rhythms in different states, and further achieve the purpose of displaying different beating rhythms of the heart beating;
3. the device has the advantages that the number of the ventricle rotating rods for controlling the ventricular beat is fixed, and the number of the atrium adjusting rods can be changed and adjusted, so that a plurality of beat frequency changes of the atrium when the ventricular frequency is fixed can be simulated, the atrium adjusting rods only need to be matched with different atrium rotating rods, the ventricular beat frequency change can be finished only by pulling the adjusting rods, and the operation is simple;
4. this device has used strip spring leaf as ventricle elastic strip and atrium elastic strip for ventricle receipts stretch out wheel and atrium receipts stretch out wheel after the atress shrink, because lose external force and elasticity is relaxed again and is opened, the simulation heartbeat is more lifelike, and need not operate once more, only need rotate the regulation pole and can accomplish easy operation.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the ventricular chamber cover and the atrial chamber cover of the present invention;
FIG. 3 is a schematic view of an adjusting lever according to the present invention;
FIG. 4 is a schematic view of the adjustment lever of the present invention in cooperation with the ventricular contraction wheel and the atrial contraction wheel;
FIG. 5 is a schematic view of the different sets of ventricular rotation rods and atrial rotation rods in poke engagement in accordance with the present invention;
FIG. 6 is a schematic view of the internal structure of the ventricular chamber cover and the atrial chamber cover with the adjustment rod removed.
In the drawings, the components represented by the respective reference numerals are listed below:
1-ventricular chamber cover, 11-ventricular contraction wheel, 12-ventricular elastic strip, 13-ventricular limiting shaft, 14-deflector rod, 2-atrial chamber cover, 21-atrial contraction wheel, 22-atrial elastic strip, 23-atrial limiting shaft, 3-adjusting rod, 31-ventricular rotating rod, 32-atrial rotating rod, 33-rotating handle, 34-rhythm mark and 4-fixed shaft.
Detailed Description
Referring to fig. 1 to 6, the present invention provides a technical solution: a model for demonstrating a heart rhythm capable of modulating a beating rhythm, comprising:
the ventricular cavity cover 1 is provided with a closed cavity in the shape of a ventricle on the outside, a plurality of ventricular elastic strips 12 are uniformly and fixedly connected on the inner wall, a ventricular limiting shaft 13 is fixed in the ventricular cavity cover 1, a ventricular tension wheel 11 is rotatably arranged on the ventricular limiting shaft 13, and the other ends of the ventricular elastic strips 12 are fixedly connected with the ventricular tension wheel 11;
the atrium chamber cover 2, the outside is the closed cavity of the atrium shape, the homogeneous fixed connection of inner wall has a plurality of atrium elastic strips 22, the inside has fixed a atrium spacing axle 23, the ones that can rotate on the said atrium spacing axle 23 have installed an atrium and contracted the tension wheel 21, another end of a plurality of said atrium elastic strips 22 all fixedly connects with atrium and contracts the tension wheel 21;
the fixed shaft 4 is a straight shaft and is fixedly arranged between the ventricular cavity cover 1 and the atrial cavity cover 2;
the adjusting rod 3 is a loop bar, can be rotatably sleeved on the fixing shaft 4, can be inserted and drawn out and is arranged between the ventricular chamber cover 1 and the atrial chamber cover 2 in a sliding manner, one end of the adjusting rod is arranged outside the ventricular chamber cover 1 and the atrial chamber cover 2, the other end of the adjusting rod is telescopically arranged on the fixing shaft 4 of the ventricular chamber cover 1 and the atrial chamber cover 2 in a sliding manner, a plurality of groups of ventricular rotating rods 31 and a plurality of groups of atrial rotating rods 32 are arranged on the adjusting rod, and the plurality of groups of ventricular rotating rods 31 and the plurality of groups of atrial rotating rods 32 are arranged in the inner cavities of the ventricular chamber;
the outer ends of the ventricle rotating rod 31 and the atrium rotating rod 32 are both in a hook-shaped structure,
one ends of the ventricle tension wheel 11 and the atrium tension wheel 21 close to the adjusting rod 3 are hook-shaped shift levers 14;
each ventricle rotating rod 31 can be separated from the ventricle stretching wheel 11 to be mutually pushed, and each atrium rotating rod 32 can be separated from the atrium stretching wheel 21 to be mutually pushed;
the positions of the ventricle rotating rod 31 and the atrium rotating rod 32 of each group are in one-to-one correspondence, the number proportion of the ventricle rotating rod 31 and the atrium rotating rod 32 of different groups is different, when the atrium tension wheel 21 of the corresponding position of each group blocks the rotating path of a group of atrium rotating rods 32, the ventricle tension wheel 11 of the corresponding position blocks the rotating path of a group of ventricle rotating rods 31 of the corresponding position,
the same set of ventricle dwang 31 is not in on the 3 cambered surfaces of regulation pole between a plurality of atria dwang 32, can simulate the rhythm of heartbeat, and demonstrate the systolic relaxation of the ventricle of heartbeat and atrium, this device is under the condition of the normal heartbeat of show, simultaneously can also demonstrate the beating of ventricle with different rhythms, a heartbeat for simulating different rhythms, can make audio-visual simulation show to the heartbeat, can simulate the too fast condition of heartbeat, and can demonstrate the heartbeat rhythm when the arrhythmia with the atrium ventricle rhythm of multiple differences, and this device is complete mechanical structure, do not need the power supply, do not have cardiovascular simulation yet, only demonstrate the heartbeat rhythm, consequently, the preparation is simpler, it is more convenient to carry, can portable give people's show in the place of the difference, it is also more convenient to use.
At least four groups of ventricle rotating rods 31 and atrium rotating rods 32 are arranged in corresponding positions, and the number proportion of the ventricle rotating rods 31 and the atrium rotating rods 32 in each group is fixed and different;
the number ratio of the ventricle rotating rods 31 to the atrium rotating rods 32 in the first group corresponding to the positions is 1: 1;
the number ratio of the ventricle rotating rods 31 to the atrium rotating rods 32 in the second group corresponding to the position is 1: 2;
the number ratio of the ventricle rotating rods 31 to the atrium rotating rods 32 in the third group corresponding to the position is 1: 3;
the number ratio of the ventricle rotating rods 31 to the atrium rotating rods 32 in the fourth group corresponding to the positions is 1:4, and the contraction and relaxation frequencies of the ventricle cavity cover 1 and the atrium cavity cover 2 are completed by matching the ventricle rotating rods 31 and the atrium rotating rods 32 with different ratios, so that different heartbeat frequencies are simulated for displaying different heartbeat rhythms;
the number of the ventricular rotating rods 31 in each group is one, so that the ventricular beat frequency of the device is fixed, and the atrial frequency can be conveniently adjusted to simulate arrhythmia or simulate normal heartbeat frequency;
the ventricular elastic strips 12 are tensioned and fixed on the inner wall of the ventricular cavity cover 1, and the ventricular elastic strips 12 are tensioned between the full-beating position of the ventricle and the ventricular tension wheel 11;
the plurality of the atrium elastic strips 22 are tightly fixed on the inner wall of the atrium chamber cover 2, the plurality of the atrium elastic strips 22 are tightly arranged between the full beating position of the atrium and the atrium tension wheel 21, and the ventricle chamber cover 1 and the atrium chamber cover 2 are pulled through the elastic ventricle elastic strips 12 and the atrium elastic strips 22 for simulating the beating of the heart;
the ventricular elastic strip 12 and the atrial elastic strip 22 are strip-shaped spring strips, so that the ventricular elastic strip and the atrial elastic strip are convenient to pull and elastically restore, and the contraction and immediate relaxation of the heart are simulated;
the atrium tension wheel 21 is arranged on the atrium limiting shaft 23 in a non-sliding way through a bearing, the ventricle tension wheel 11 is arranged on the ventricle limiting shaft 13 in a non-sliding way through a bearing, so that the atrium tension wheel 21 and the ventricle tension wheel 11 can rotationally pull the ventricle elastic strip 12 and the atrium elastic strip 22 to contract the ventricle cavity cover 1 and the atrium cavity cover 2;
the adjusting rod 3 is in transition fit with the fixed shaft 4, so that the adjusting rod 3 can be telescopically adjusted on the fixed shaft 4, and the adjusting rod 3 can also rotate by taking the fixed shaft 4 as an axis, so that the ventricle rotating rod 31 and the atrium rotating rod 32 can be conveniently pulled during rotation;
the ventricular cavity cover 1 and the atrial cavity cover 2 are integrally sealed cavities made of rubber, and stainless steel reinforcing ribs are arranged at the joint between the ventricular cavity cover 1 and the atrial cavity cover 2 and used for stably fixing the adjusting rod 3 and the fixing shaft 4 and playing a role in reinforcing the integral structure;
adjust pole 3 and set up in one of ventricle chamber cover 1 and atrium chamber cover 2 outside and still fixed turning handle 33, turning handle 33 is sheet structure, still be carved with rhythm of the heart mark 34 on adjusting pole 3 of ventricle chamber cover 1 and atrium chamber cover 2 outside, the mark of rhythm of the heart mark 34 and every proportion one-to-one of group's ventricle dwang 31 and atrium dwang 32 are convenient for externally just can accurate judgement be that the ventricle dwang 31 and the atrium dwang 32 of that group's proportion receive tension wheel 21 and ventricle tension wheel 11 to the atrium, the different rhythm of the heart of regulation of being convenient for clearly demonstrates.
In one embodiment of the invention:
the embodiment of the invention provides a heart rhythm demonstration model capable of adjusting a beating rhythm, and the technical problem solved by the invention is as follows: 1. the existing heartbeat model is not available and is basically a fixed model with a blood vessel flow direction; 2. the existing heart model is only fixed, cannot beat, cannot completely display the heartbeat and beat rhythm, and does not have a model convenient to display.
The realized technical effects are as follows: 1. the invention does not use electronic products, has high reliability, convenient use and carrying, more applicable environments and can adjust different heart beat rhythms only by shaking hands;
2. the device ensures that the ventricle rotating rods 31 and the atrium rotating rods 32 of different groups are matched by pulling the adjusting rod 3, so as to adjust different beating frequencies of the ventricle cavity cover 1 and the atrium cavity cover 2, be used for simulating heart beating rhythms in different states and further achieve the purpose of displaying different beating rhythms of the heart beating;
3. the device has the advantages that the number of the ventricle rotating rods 31 for controlling the ventricular beat is fixed, and the number of the atrium adjusting rods 32 can be changed and adjusted, so that a plurality of beat frequency changes of the atrium when the ventricle frequency is fixed can be simulated, the atrium adjusting rods can be matched only by using different atrium rotating rods 32, the ventricular beat frequency change can be finished only by pulling the adjusting rods 3, and the operation is simple;
4. the device uses the strip-shaped spring pieces as the ventricle elastic strips 12 and the atrium elastic strips 22, so that the ventricle tension wheel 11 and the atrium tension wheel 21 are elastically stretched after being stressed and contracted due to the loss of external force, the simulated heartbeat is more vivid, the operation is not required again, the operation can be finished only by rotating the adjusting rod 3, and the operation is simple.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea:
for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
When the invention is manufactured and installed, firstly, two hollow rubber capsule bodies are made of rubber with moderate hardness and good toughness, the external shape is made into the shape of the heart of an adult, the internal part is hollow, one is made into the shape of a ventricle cover 1, the other is made into the shape of an atrium, and is an atrium cover 2, after all parts are assembled, the ventricle cover 1 and the atrium cover 2 are fused or bonded to form an integral sealed cavity, preferably, each part is arranged in the ventricle cover 1 and the atrium cover 2 in advance, and then the ventricle cover 1 and the atrium cover 2 are injected into an integral structure;
the heart in the ventricular cavity cover 1 can jump to contract or relax, the ventricular elastic strip 12 is fixed at the position, then, a ventricular limiting shaft 13 is fixedly inserted into the ventricular cavity cover 1, the ventricular limiting shaft 13 does not rotate, a ventricular tension wheel 11 is installed on the ventricular limiting shaft 13, the ventricular tension wheel 11 can be rotatably installed on the ventricular limiting shaft 13 through a bearing, but the ventricular tension wheel 11 cannot slide on the ventricular limiting shaft 13 and can only be fixed at a specific position and rotate along the axis of the ventricular limiting shaft 13, then, the ventricular elastic strip 12 is tightened between the inner wall of the ventricular cavity cover 1 and the ventricular tension wheel 11, so that the ventricular elastic strip 12 is in the ventricular relaxation state when not stressed, and the ventricular tension wheel 11 is in a hook-shaped structure as shown in fig. 4 and one end opposite to the adjusting rod 3;
the atrial chamber cover 2 has the same internal structure as the ventricular chamber cover 1, as shown in fig. 2, and the structures of the atrial tension wheel 21, the atrial elastic strip 22 and the atrial limiting shaft 23 are also the same as the internal structure of the ventricular chamber cover 1, so that the atrium is in a diastolic state when the atrial elastic strip 22 is free from external force, and the outside of the atrial chamber cover 2 is in a contracted state when the atrial elastic strip 22 is pulled by force;
then a fixed shaft 4 is inserted and fixed between the ventricular cavity cover 1 and the atrial cavity cover 2, one end of the fixed shaft is fixed inside the ventricular cavity cover 1 and the atrial cavity cover 2, the other end of the fixed shaft is suspended, an adjusting rod 3 is inserted through the suspended end of the fixed shaft 4, the adjusting rod 3 is a loop bar, the adjusting rod 3 can slide along the axis of the fixed shaft 4, and meanwhile, the adjusting rod 3 can also rotate along the fixed shaft 4;
the adjusting rod 3 and the fixing shaft 4 are both made of stainless steel structures, the seam between the ventricular cavity cover 1 and the atrial cavity cover 2 is reinforced by stainless steel and fixed as reinforcing ribs, the seam between the ventricular cavity cover 1 and the atrial cavity cover 2 does not need to be shrunk or stretched in a relaxation mode, and then the fixing shaft 4 is fixed on the reinforcing ribs between the ventricular cavity cover 1 and the atrial cavity cover 2;
the adjusting rod 3 is provided with 4 groups of ventricle rotating rods 31 and atrium rotating rods 32, the positions of each group of ventricle rotating rods 31 and atrium rotating rods 32 are fixed, when the same group of ventricle rotating rods 31 and the ventricle tension wheels 11 are butted and can be rotated and mutually hooked, the atrium rotating rods 32 in the same group of positions just correspond to the positions of the atrium tension wheels 21, at the moment, the atrium rotating rods 32 and the atrium tension wheels 21 can be mutually hooked and also can be separated, as shown in fig. 2 and fig. 5, the ventricle rotating rods 31 and the atrium rotating rods 32 in different groups are respectively mutually hooked and driven with the ventricle tension wheels 11 and the atrium tension wheels 21;
and the number ratio of the ventricular rotation rods 31 to the atrial rotation rods 32 of different groups is different, as shown in fig. 3, there is one ventricular rotation rod 31 in the first leftmost group, and at the same time, there is one atrial rotation rod 32 in the first group; the ventricular rods 31 of the second group are 1 and the atrial rods 32 of the second group are 2 in number; the ventricular rods 31 of the third group are 1 and the atrial rods 32 of the third group are 3 in number; the ventricular rotation rods 31 of the fourth group are 1 and the atrial rotation rods 32 of the fourth group are 4 in number; therefore, by adjusting the ventricular rotating rods 31 and the atrial rotating rods 32 of different groups to be matched with the ventricular contraction and expansion wheel 11 and the atrial contraction and expansion wheel 21, the rotating frequency of different proportions is achieved, and different rotating speeds are matched, so that the heart beats with different rhythms are achieved;
one end of the adjusting rod 3 is inserted into the fixed shaft 4 and all the ventricle rotating rods 31 and all the atrium rotating rods 32 are arranged inside the ventricle cavity cover 1 and the atrium cavity cover 2 and can not be separated, while the other end of the adjusting rod 3 is arranged outside the ventricle cavity cover 1 and the atrium cavity cover 2 and is used for manually rotating and pulling the adjusting rod 3, the adjusting rod 3 is further provided with a rotating handle 33 at one end outside the ventricle cavity cover 1 and the atrium cavity cover 2, meanwhile heart rhythm marks 34 with different proportions are carved on the outer end of the adjusting rod 3, and each heart rhythm mark 34 is in one-to-one correspondence with the quantity proportion of each group of ventricle rotating rods 31 and atrium rotating rods 32, for example, when the third group of ventricle rotating rods 31 and atrium rotating rods 32 are respectively hooked and butted with the ventricle tension wheel 11 and the atrium tension wheel 21, and the second heart rhythm mark 34 is just aligned with the outer edge of the ventricle cavity cover 1 and the atrium cavity cover 2, as shown in fig. 2;
similarly, when the first group of ventricular rotating rods 31 and the atrial rotating rods 32 are hooked in an abutting mode, the first heart rhythm mark 34 is exactly aligned with the outer edge of the ventricular cavity cover 1 and the atrial cavity cover 2, the heart lining mark directly marks the ratio of the ventricular rotating rods 31 to the atrial rotating rods 32, the number ratio of the first group of ventricular rotating rods 31 to the atrial rotating rods 32 is 1:1, the first heart rhythm mark 34 is number 1, the second group of corresponding heart rhythm marks 34 is number 2, the third group of corresponding heart rhythm marks 34 is number 3, the fourth group of corresponding heart rhythm marks 34 is number 4, if different ratio groups of the ventricular rotating rods 31 and the atrial rotating rods 32 are added, the heart rhythm marks 34 are correspondingly added, and the positions need to be accurately matched.
When the heart beat rhythm display device is used, when a normal heart beat rhythm needs to be displayed, the adjusting rod 3 is firstly pulled out to be as shown in figure 5, the first group of the ventricle rotating rod 31 and the atrium rotating rod 32 with the number ratio of 1:1 are ensured to be respectively butted with the ventricle tension wheel 11 and the atrium tension wheel 21, then the adjusting rod 3 is rotated, the adjusting rod 3 rotates on the fixed shaft 4, the atrium rotating rod 32 hooks the hook-shaped shift rod 14 of the atrium tension wheel 21, the atrium tension wheel 21 rotates on the atrium limit shaft 23 to pull and drag all the atrium elastic strips 22, the atrium elastic strips 22 pull the atrium chamber cover 2, the atrium chamber cover 2 is contracted, the atrium chamber cover 2 is shown contracted from the outside, when the adjusting rod 3 rotates continuously, the atrium rotating rod 32 and the atrium tension wheel 21 rotate excessively to be separated, the atrium elastic strip 22 restores to the original position, and the atrium cavity cover 2 returns to the relaxation state, so that the contraction and the relaxation of an atrium are finished;
the adjusting rod 3 continuously rotates, when the ventricle rotating rod 31 pulls the hook-shaped pulling rod 14 of the ventricle stretching wheel 11, the ventricle stretching wheel 11 rotates on the ventricle limiting shaft 13 by a certain radian, the ventricle limiting shaft 13 rotates to pull the ventricle elastic strip 12, the ventricle elastic strip 12 contracts to pull the ventricle cavity cover 1, so that the exterior of the device looks like that the ventricle cavity cover 1 contracts once, then the ventricle rotating rod 31 rotates excessively and is separated from the ventricle stretching wheel 11 quickly, the ventricle elastic strip 12 is not pulled by external force, and the ventricle cavity cover 1 recovers the original diastolic position by elastic force, so that the device finishes the contraction and relaxation of a ventricle;
the atria contract and relax, then the ventricles contract and relax to complete a normal heartbeat,
the ventricle rotating rods 31 and the atrium rotating rods 32 are respectively arranged on different sides of the axis of the adjusting rod 3, all the ventricle adjusting rods 31 are arranged on the same side of the axis of the adjusting rod 3, the atrium rotating rods 32 are arranged on the arc surface of the other side of the adjusting rod 3, each group of the atrium rotating rods 32 and the ventricle rotating rods 31 are arranged on the arc surfaces of different sides of the axis of the adjusting rod 3, as shown in fig. 3, all the atrium rotating rods 32 are arranged above the axis of the adjusting rod 3, and all the ventricle rotating rods 31 are arranged below the axis of the adjusting rod 3;
similarly, when different groups of atrium rotating levers 32 and ventricle rotating levers 31 are butted on the atrium tension wheel 21 and ventricle tension wheel 11, as shown in fig. 2, the ventricle rotating levers 31 and atrium rotating levers 32 of the third group are butted on the atrium tension wheel 11 and atrium tension wheel 21 respectively, at this time, when the adjusting lever 3 rotates, the atrium housing 2 will shrink and relax 3 times after poking of the three atrium rotating levers 32, the ventricle housing 1 shrinks and relaxes once, the heart beat rhythm is that the atrium beats 3 times first, then the ventricle beats 1 time after one time, the adjusting lever 3 continues to rotate, the atrium beats continuously according to the frequency of 3:1, the heart beat showing arrhythmia with fixed frequency is formed, and the heart beat can be adjusted according to specific requirements, and the device can simulate the heart rate fast and slow by rotating the rotating speed of the adjusting lever 3, different proportions of atrial and ventricular beats are simulated, and adjustment is realized by adjusting different numbers of ventricle rotating rods 31 and atrial rotating rods 32 on the rod 3.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (9)
1. A model for demonstrating heart rhythm that regulates beating rhythm, comprising:
the heart ventricle cavity cover (1) is provided with a closed cavity in the shape of a heart ventricle on the outside, a plurality of heart ventricle elastic strips (12) are uniformly and fixedly connected on the inner wall, a heart ventricle limiting shaft (13) is further fixed in the heart ventricle cavity cover, a heart ventricle tension wheel (11) is rotatably arranged on the heart ventricle limiting shaft (13), and the other ends of the heart ventricle elastic strips (12) are fixedly connected with the heart ventricle tension wheel (11);
the atrium chamber cover (2) is a closed chamber body with an atrium shape on the outer part, a plurality of atrium elastic strips (22) are uniformly and fixedly connected on the inner wall, an atrium limiting shaft (23) is further fixed in the atrium chamber cover, an atrium tension wheel (21) is rotatably arranged on the atrium limiting shaft (23), and the other ends of the atrium elastic strips (22) are fixedly connected with the atrium tension wheel (21);
the fixed shaft (4) is a straight shaft and is fixedly arranged between the ventricular cavity cover (1) and the atrial cavity cover (2);
the adjusting rod (3) is a loop bar, can be rotatably sleeved on the fixed shaft (4), can be inserted and drawn out and is arranged between the ventricular chamber cover (1) and the atrial chamber cover (2) in a sliding manner, one end of the adjusting rod is arranged outside the ventricular chamber cover (1) and the atrial chamber cover (2), the other end of the adjusting rod is telescopically arranged on the fixed shaft (4) of the inner cavities of the ventricular chamber cover (1) and the atrial chamber cover (2) in a sliding manner, a plurality of groups of ventricular rotating rods (31) and a plurality of groups of atrial rotating rods (32) are arranged on the adjusting rod, and the plurality of groups of ventricular rotating rods (31) and the plurality of groups of atrial rotating rods (32) are arranged in the inner cavities of the ventricular chamber cover;
the outer ends of the ventricle rotating rod (31) and the atrium rotating rod (32) are both in hook-shaped structures,
one ends of the ventricle stretching wheel (11) and the atrium stretching wheel (21) close to the adjusting rod (3) are hook-shaped shift levers (14);
each ventricle rotating rod (31) can be separated from and pushed to the ventricle tension wheel (11) and each atrium rotating rod (32) can be separated from and pushed to the atrium tension wheel (21);
the positions of the ventricle rotating rods (31) and the atrium rotating rods (32) in each group are in one-to-one correspondence, the number proportion of the ventricle rotating rods (31) to the atrium rotating rods (32) in different groups is different, and when the atrium tension wheels (21) in the corresponding positions in each group block the rotating path of one group of atrium rotating rods (32), the ventricle tension wheels (11) in the corresponding positions block the rotating path of one group of ventricle rotating rods (31) in the corresponding positions;
the ventricle rotating rods (31) in the same group are not positioned on the arc surface of the adjusting rod (3) among the atrium rotating rods (32).
2. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 1, wherein: the number of the ventricle rotating rods (31) and the atrium rotating rods (32) corresponding to the positions is at least four groups, and the number proportion of the ventricle rotating rods (31) to the atrium rotating rods (32) in each group is fixed and different;
the number ratio of the ventricle rotating rods (31) to the atrium rotating rods (32) in the first group corresponding to the positions is 1: 1;
the number ratio of the ventricle rotating rods (31) to the atrium rotating rods (32) in the second group corresponding to the positions is 1: 2;
the number ratio of the ventricle rotating rods (31) to the atrium rotating rods (32) in the third group corresponding to the positions is 1: 3;
the number ratio of the ventricle rotating rods (31) to the atrium rotating rods (32) in the fourth group corresponding to the position is 1: 4.
3. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 2, wherein: the number of the ventricle rotating rods (31) in each group is one.
4. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 1, wherein: the ventricular elastic strips (12) are tensioned and fixed on the inner wall of the ventricular cavity cover (1), and the ventricular elastic strips (12) are tensioned between the full beating position of the ventricle and the ventricular tension wheel (11);
the atrium elastic strips (22) are tightly fixed on the inner wall of the atrium chamber cover (2), and the atrium elastic strips (22) are tightly arranged between the full beating position of the atrium and the atrium tension wheel (21).
5. A model for demonstrating heart rhythm capable of modulating a beating rhythm according to claim 4, wherein: the ventricle elastic strip (12) and the atrium elastic strip (22) are strip-shaped spring strips.
6. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 1, wherein: the atrium tension wheel (21) is arranged on the atrium limit shaft (23) in a non-sliding mode through a bearing, and the ventricle tension wheel (11) is arranged on the ventricle limit shaft (13) in a non-sliding mode through a bearing.
7. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 1, wherein: the adjusting rod (3) is in transition fit with the fixed shaft (4).
8. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 1, wherein: the heart ventricle cover (1) and the heart atrium cover (2) are integrally sealed cavities made of rubber, and stainless steel reinforcing ribs are arranged at the joint between the heart ventricle cover (1) and the heart atrium cover (2).
9. A model for demonstrating heart rhythm capable of regulating a beating rhythm as claimed in claim 2, wherein: adjust pole (3) and set up and still fixed turning handle (33) on one end of ventricular chamber cover (1) and atrium chamber cover (2) outside, turning handle (33) are the sheet structure, still be carved with rhythm of the heart mark (34) on ventricular chamber cover (1) and atrium chamber cover (2) outside regulation pole (3), the mark of rhythm of the heart mark (34) and the proportion one-to-one of every group's ventricle dwang (31) and atrium dwang (32).
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