JP2020126096A - Cardiac massage practice device and cardiac massage practice method - Google Patents

Abstract

To provide a cardiac massage practice device and a cardiac massage practice method with which a user can physically feel a sense similar to a real cardiac massage and can have higher-level practice.SOLUTION: A cardiac massage practice device 10 comprises: a pump body 21 that is shrunk by compression and extended by compression release; a first suction valve 22 and a second suction valve 24 that are released by negative pressure, in a pump chamber 21a, generated when the pump body 21 is extended and that enable both a liquid W and air to be suctioned into the pump chamber 21a from the outside of the pump body 21; and a discharge vale 23 that is released by positive pressure, in the pump chamber 21a of the pump body 21, generated when the pump body 21 is shrunk and that enables at least one of the liquid W and the air in the pump chamber 21a to be discharged into the outside.SELECTED DRAWING: Figure 8

Description

The present invention relates to a heart massage training tool and a heart massage training method for practicing a heart massage by chest compression.

This type of heart massage training device has a deformable hollow elastic body, a simulated vein, a simulated artery, a simulated mitral valve, and a simulated arterial valve. The hollow elastic body contracts and expands to simulate the simulated vein. Discloses that virtual blood is transferred to a hollow elastic body, and the transferred virtual blood is transferred to a simulated artery (see Patent Document 1). In the conventional heart massage training device, the simulated mitral valve is configured to open when the hollow elastic body expands from contraction and closes when the hollow elastic body contracts from expansion. In contrast to the simulated mitral valve, the simulated arterial valve is configured to open when contracting from expansion and close when the hollow elastic body expands from contraction.

JP, 2005-191235, A

In the cardiac massage practice device described in Patent Document 1, the simulated mitral valve opens due to the negative pressure generated in the hollow elastic body when the hollow elastic body expands from contraction, so-called negative pressure, and the simulated blood in the simulated vein is generated. The simulated blood in the hollow elastic body is delivered to the simulated artery by a positive pressure, that is, a positive pressure generated when the hollow elastic body flows into the hollow elastic body and contracts from expansion. Therefore, the simulated blood flow according to the deformation of the hollow elastic body can be seen, and the movement and role of the heart can be easily understood. The conventional heart massage practice device is highly valuable as a teaching material for learning heart massage for ordinary people such as elementary school children, middle school and high school students.

However, since the actual heart massage for the human body is affected by other internal organs present in the chest cavity, the sensation is different from that of the heart massage experienced using the conventional heart massage practice device. Therefore, the conventional heart massage practice device is insufficient for practice by medical personnel who are engaged in daily medical care, such as doctors, nurses, and paramedics, and it is difficult to perform advanced practice. there were.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a heart massage practice tool and a heart massage practice method that allow a person to experience a sensation close to that of an actual heart massage and perform a more advanced exercise. To do.

(1) The heart massage practice device according to the present invention is opened by negative pressure of the pump main body that contracts by compression and expands by releasing pressure, and the pump chamber of the pump main body generated when the pump main body expands. A first suction valve that communicates between a pump chamber of the pump body and the outside of the pump body to allow liquid to be sucked into the pump chamber of the pump body from the outside of the pump body; and the pump body extends. When the negative pressure of the pump chamber of the pump body is generated when it is opened, the pump chamber of the pump body and the outside of the pump body are communicated with each other from the outside of the pump body to the pump chamber of the pump body. A second suction valve that allows air to be sucked in; a positive pressure in the pump chamber of the pump body generated when the pump body contracts; And a discharge valve for communicating at least one of the liquid and the air in the pump chamber to the outside.

According to the present invention, the pump main body contracts due to compression, the pump chamber of the pump main body is pressurized to a positive pressure, the discharge valve is opened, and the liquid and air are discharged from the pump chamber of the pump main body to the outside of the pump main body. At least one is discharged. Then, as the pump main body expands by releasing the compression, the pump chamber of the pump main body becomes negative pressure, the first suction valve and the second suction valve are opened, and liquid is pumped into the pump chamber of the pump main body from outside the pump main body. And air is inhaled. That is, liquid is sucked into the pump chamber from the outside of the pump body through the first suction valve by compression, and air is sucked into the pump chamber from the outside of the pump body through the second suction valve.

The heart massage practice device of the present invention is provided with a second suction valve for sucking air into the pump chamber from the outside in addition to the first suction valve for sucking liquid into the pump chamber from the outside. At this time, since both liquid and air are sucked into the pump chamber from the first suction valve and the second suction valve, a state similar to the actual state of the human body in consideration of the thoracic internal organs other than the heart such as the lungs. Can be artificially created. Therefore, a person who uses the heart massage practice tool can experience a heart massage with a feeling similar to that of an actual heart massage, and can perform advanced practice.

(2) The heart massage practice device according to (1) above, including a base plate placed on a floor surface, and a cover disposed on the base plate and accommodating the pump body between the base plate and the base plate. The pump main body is fixed to the base plate at one end in the expansion/contraction direction, and the other end in the expansion/contraction direction of the pump main body is fixed to the cover. Is formed by an elastic member that elastically deforms by compression to contract the pump body, and elastically returns by releasing pressure to extend the pump body.

According to the present invention, the cover can be elastically deformed to compress the pump body by compression, and the cover can be elastically returned to release the pump body by releasing the compression. Therefore, the person who uses the heart massage practice device can obtain a repulsive force due to the cooperation of the elastic force of the cover and the elastic force of the pump body at the time of compression, and experience the same pressing sensation as an actual heart massage. can do. Further, since one end of the pump body on the one side in the expansion/contraction direction is fixed to the base plate and the other end of the pump body on the other side in the expansion/contraction direction is fixed to the cover, for example, when the cover elastically returns by releasing compression, It is possible to pull up the end portion of the main body on the other side in the expansion/contraction direction by the cover to urge the pump main body in the extending direction and to urge the elastic return of the pump main body.

(3) The heart massage practice device according to (2), wherein the cover is formed of a transparent or translucent elastic member.

According to the present invention, since the cover is formed of the transparent or translucent elastic member, the person who uses the heart massage practice device operates the pump body when the cover is pressed and when the cover is unpressurized. Can be visually observed, and the movement of the heart during an actual heart massage can be easily understood.

(4) The heart massage practice device as described in (2) or (3) above, wherein the cover presses and lifts the cover at a position facing the end portion on the other side in the expansion and contraction direction of the pump body. It is characterized in that it has a mounting portion on which a first cardiopulmonary resuscitation assisting device for performing can be mounted.

According to the present invention, for example, a first cardiopulmonary resuscitation assisting device for compressing and lifting a cover such as a cardio pump is attached to a mounting portion, and the pump main body is forced by pulling it when the compression is released and the compression is released. Can be extended. Therefore, a larger amount of liquid can be sucked into the pump chamber more quickly, the effect of the first CPR assisting device can be realized, and the usage method of the first CPR assisting device can be efficiently learned.

(5) The heart massage practice device according to any one of (2) to (4), wherein the first surface detachably fixes the end portion of the pump body on one side in the expansion/contraction direction and the base plate. It is characterized by having a fastener and a second hook-and-loop fastener that detachably fixes the end of the pump body on the other side in the expansion and contraction direction and the cover.

According to the present invention, each component is detachably fixed by the first surface fastener and the second surface fastener, so that each component can be easily disassembled and convenience such as maintenance is improved. To do.

(6) The heart massage practice device according to any one of (1) to (5), wherein a transparent or translucent simulated vein tube is connected to the first inhalation valve, and the discharge valve is connected to the ejection valve. A transparent or translucent simulated arterial tube is connected.

According to the present invention, a person who uses a heart massage practice device can visually observe the movement of liquid during inhalation and exhalation from the outside of a transparent or translucent simulated venous tube and simulated arterial tube. The relationship with the movement of the liquid can be easily grasped, and the effect of practicing heart massage can be improved.

(7) The heart massage practice device according to any one of (1) to (6), wherein a simulated trachea is connected to the second inhalation valve, and the simulated trachea includes the second trachea. A connecting part for connecting a second cardiopulmonary resuscitation assisting device for limiting an inhalation amount of air inhaled from the outside of the pump body into the pump chamber of the pump body through the inhalation valve. Characterize.

According to the present invention, when a second cardiopulmonary resuscitation assisting device such as an inspiratory air resistance valve device (ITD) that restricts an inhalation amount of air is connected to the connection portion to perform a cardiac massage operation, The amount of air that passes through the second suction valve and flows into the pump chamber is smaller than that when the cardiopulmonary resuscitation assisting device is not connected, and flows into the pump chamber after passing through the first suction valve. The amount of liquid increases, and more liquid can be sucked into the pump chamber and discharged. Therefore, it is possible to artificially create a state in which the amount of air entering the lungs is limited in the actual cardiac massage to the human body by using the second cardiopulmonary resuscitation assisting device. You can experience the effect of the device (ITD) and learn how to use it efficiently.

(8) A heart massage practice method using the heart massage practice instrument according to any one of (1) to (7), wherein at least one of air and liquid in the pump chamber of the pump body is compressed to outside the pump body. And a suction step of sucking both air and liquid into the pump chamber of the pump body from the outside of the pump body by releasing the compression.

According to the present invention, the user of the heart massage practice device can visually check the movement of the pump body and the movement of the liquid by alternately performing the discharge process and the suction process. Then, during the inhalation process, both the air and the liquid are inhaled from the first and second inhalation valves into the pump chamber of the pump body. It is possible to create a state similar to that of the human body in a simulated manner, and the user of the heart massage practice device can experience a heart massage with a sensation close to that of an actual heart massage, and can perform advanced exercises. it can.

According to the present invention, it is possible to provide a heart massage practice tool that allows a person to experience a sensation close to that of an actual heart massage and perform a more advanced exercise.

The perspective view showing the outline of the cardiac massage practice instrument concerning the embodiment of the present invention. FIG. 3 is an exploded perspective view of a part of the heart massage practice device according to the embodiment of the present invention. The perspective view of other one part of the heart massage practice instrument which concerns on embodiment of this invention. The top view, the side view, and the front view of the cardiac massage practice device which concerns on embodiment of this invention. The perspective view which removed the cover of the cardiac massage practice instrument concerning the embodiment of the present invention. 1 is a plan view of a part of a heart massage practice device according to an embodiment of the present invention, a cross-sectional view showing an AA cross section, and a cross-sectional view showing a BB cross section. FIG. 7A is a cross-sectional view illustrating the movements of the first suction valve, the second suction valve, and the discharge valve of the heart massage practice device according to the embodiment of the present invention, and FIG. 7A shows the first suction valve. 7(b) shows a discharge valve, and FIG. 7(c) shows a second intake valve. It is explanatory drawing explaining the operation|movement of the heart massage practice instrument which concerns on embodiment of this invention, FIG.8(a) shows the initial state of a heart pump, FIG.8(b) compresses a pump main body and contracts. 8C shows a state in which the pump body is expanded by releasing the compression, and FIG. 8D shows a state in which the pump body is compressed again and contracted. 1 is a perspective view of a first cardiopulmonary resuscitation assisting device attached to a heart massage practice device according to an embodiment of the present invention. The perspective view showing the state where the 1st cardiopulmonary resuscitation assisting device is attached and used for the cardiac massage practice device concerning the embodiment of the present invention.

A heart massage practice device 10 according to an embodiment to which the heart massage practice device according to the present invention is applied will be described with reference to the drawings.

The heart massage practice device 10 according to the present embodiment is used for practicing a heart massage of a human body, and can also be used for advanced practice for medical staff, for example. The heart massage practice device 10 has a shape that imitates the chest of a human body, and is placed on a flat surface such as the ground or floor so that the user of the heart massage practice device 10 has a portion corresponding to the sternum. It is possible to practice heart massage by alternately repeating compression and decompression.

When practicing a heart massage using the heart massage practice device 10, as shown in FIG. 1, for storing a liquid such as water to be inhaled by the heart massage practice device 10 separately from the heart massage practice device 10. A first container 51 and a second container 52 for storing the liquid discharged from the heart massage practice device 10 are prepared. The first container 51 and the second container 52 may be any as long as they can store a liquid, and for example, a bucket can be used, but it is possible to easily see the change in the amount of the liquid in these containers. As possible, it is preferable to use a transparent or translucent container. In addition, it is preferable to use water as the liquid because it is easily available and easy to handle. For example, the water may be colored with a paint or the like so that changes in the flow and amount of the liquid can be more easily seen.

Next, the configuration of the heart massage practice device 10 will be described in detail.

As shown in FIGS. 1 and 2, the heart massage practice device 10 includes a heart pump 11, a base plate 17 on which the heart pump 11 is mounted, and a heart pump between the base plate 17 and the base plate 17. And a cover 12 for housing 11.

The heart pump 11 has a configuration in which the liquid W and air are sucked in and discharged by the user pressing and releasing the pressure. As shown in FIGS. 2 and 6, the heart pump 11 has a pump body 21 and a pump body 21, respectively. The attached first suction valve 22, discharge valve 23, second suction valve 24, simulated venous pipe 25 connected to the first suction valve 22, and simulated arterial pipe connected to the discharge valve 23. 26 and a simulated trachea 27 connected to the second intake valve 24.

The pump body 21 has a configuration in which it elastically deforms and contracts when pressed, and elastically returns and extends when the pressure is released. For example, as shown in FIG. 4, the pump main body 21 has a lower end that is one end of the pump main body 21 on one side in the expansion/contraction direction fixed to the base plate 17, and an upper end that is the other end of the pump main body 21 on the other side in the expansion/contraction direction. Are fixed to the cover 12.

As shown in FIG. 2, the pump main body 21 includes a cylindrical bellows portion 31 that can expand and contract in the axial direction, a lower end surface portion 33 that closes the lower end portion of the bellows portion 31, and an upper end that closes the upper end portion of the bellows portion 31. And a surface portion 32. Inside the pump body 21, there is formed a pump chamber 21 a which is a sealed space surrounded by a bellows portion 31, a lower end surface portion 33 and an upper end surface portion 32. The pump body 21 has a positive pressure in the pump chamber 21a when contracting, and has a negative pressure in the pump chamber 21a when expanding.

The bellows portion 31 is made of a synthetic resin thin-walled cylindrical member in which a large diameter portion and a small diameter portion are continuously formed alternately, is made to have a predetermined size (mm ³ ) and thickness (mm), and expands and contracts in the axial direction. It has elasticity, flexibility and airtightness. The bellows portion 31 has a mounting portion 31b for mounting the lower end surface portion 33 on the lower end portion and a mounting portion 31a for mounting the upper end surface portion 32 on the upper end portion.

The pump body 21 has an upper end surface portion 32 fixed to the inner wall surface of the cover 12, and a lower end surface portion 33 fixed to the base plate 17 with the fixing plate 14 and the spacer 34 interposed therebetween. When the user of the heart massage practice device 10 pushes the sternum portion of the cover 12 downward to compress the pump body 21, the bellows portion 31 of the pump body 21 elastically deforms together with the cover 12, and the pump body 21 moves in the axial direction. Contract. When the pressure is released, the bellows portion 31 elastically returns together with the cover 12 and extends in the axial direction.

The cover 12 and the bellows portion 31 are elastically deformed by about 5 cm when the sternum portion of the cover 12 is pressed by a force of about 30 Kgf (about 294 N), and the height of the sternum portion of the cover 12 is, for example. The elastic strength is set so that Therefore, the spring constant of the cover 12 and the bellows portion 31 is about 60 N/cm. The load and the contraction amount are not limited to about 30 Kgf and 5 cm, and an optimum value is appropriately selected.

Then, when the pressure is released, the cover 12 and the bellows portion 31 quickly elastically return to their original shapes by their own restoring force (N). The cover 12 and the bellows portion 31 are elastic so as to obtain about 100 to 120 compressions per minute when the user of the heart massage practice device 10 practices to press the sternum portion of the cover 12. Power is set.

As shown in FIGS. 2, 5 and 6, the upper end surface portion 32 includes an insertion portion 32a into which the attachment portion 31a of the bellows portion 31 is inserted, a pair of belt guide portions 32b through which the belt fastener 16 is inserted, and a first portion. It has a fastener fixing portion 32c for fixing the surface fastener 13. The upper end surface portion 32 is detachably fixed to the inner wall surface of the cover 12 by a pair of first surface fasteners 13. When the cover 12 is pressed and elastically deformed, it moves downward together with the cover 12 and the bellows portion. When the cover 12 is contracted, the cover 12 is released from the pressure and elastically returns, the cover 12 is moved upward together with the cover 12, and the bellows portion 31 is expanded.

As shown in FIG. 2, FIG. 5, FIG. 6 and FIG. 7, the lower end surface portion 33 has an insertion portion 33a into which the attachment portion 31b of the bellows portion 31 is inserted, and an attachment portion to which the first intake valve 22 and the discharge valve 23 are attached. And a portion 33b. Through holes 33d and 33e are formed in the attaching portion 33b, the attaching portion 41a of the first intake valve 22 is inserted into the through hole 33e, and the attaching portion 43a of the discharge valve 23 is inserted into the through hole 33d. Are inserted and fixed in a sealed state. The lower end surface portion 33 is formed with a through hole 33c penetrating the central portion. The connection portion 46b of the second intake valve 24 is inserted into the through hole 33c of the lower end surface portion 33 and is fixed in a sealed state.

A spacer 34 is provided below the lower end surface portion 33. As shown in FIGS. 2, 5 and 6, the spacer 34 is interposed between the lower end surface portion 33 and the fixed plate 14, and abuts against the fixed plate 14 and the contact surface 34 a that abuts the lower end surface portion 33. It has the contact surface 34b which contacts. Then, a through hole 34c is formed on the side surface side of the spacer 34, and a through hole 34d is formed in the central portion. The simulated trachea 27 is passed through the through hole 34c, and the connecting portion 46b of the second intake valve 24 is inserted and fixed in the through hole 34d.

The first suction valve 22 is opened by the negative pressure of the pump chamber 21a generated when the pump body 21 extends, and communicates between the pump chamber 21a and the outside of the pump body 21 from the outside of the pump body 21. The pump chamber 21a has a structure capable of sucking liquid. As shown in FIG. 7A, the first suction valve 22 has a valve case 41 having a passage 22a penetrating therethrough, and a valve body 42 that opens and closes the passage 22a.

The valve case 41 has a mounting portion 41 a that is mounted on the lower end surface portion 33 of the pump body 21 and a connecting portion 41 b that connects the simulated intravenous line 25. As shown in the upper diagram of FIG. 7( a ), the valve body 42 has air or liquid W from the mounting portion 41 a side toward the connecting portion 41 b side (from the left side to the right side in FIG. 7( a )). When it flows, the flow path 22a is closed, and as shown in the lower part of FIG. 7A, from the connection part 41b side toward the attachment part 41a side (from the right side to the left side in FIG. 7A). When the liquid W flows (toward), the flow path 22a is opened.

The discharge valve 23 is opened by the positive pressure of the pump chamber 21a generated when the pump body 21 contracts, communicates between the pump chamber 21a and the outside of the pump body 21, and the liquid W and the air in the pump chamber 21a. At least one of the above can be discharged to the outside. As shown in FIG. 7B, the discharge valve 23 has a valve case 43 having a passage 23a penetrating therethrough and a valve element 44 that opens and closes the passage 23a.

The valve case 43 has a mounting portion 43 a that is mounted on the lower end surface portion 33 of the pump body 21 and a connecting portion 43 b that connects the simulated arterial tube 26. As shown in the upper diagram of FIG. 7( b ), the valve body 44 has air or liquid W flowing from the mounting portion 43 a side toward the connecting portion 43 b side (from the left side to the right side in FIG. 7( b )). When it flows, the flow path 23a is opened, and as shown in the lower diagram of FIG. 7B, from the connecting portion 43b side to the mounting portion 43a side (from the right side to the left side in FIG. 7B). When air or liquid W flows (toward), the flow path 23a is closed.

The second suction valve 24 is opened by the negative pressure of the pump chamber 21a generated when the pump body 21 extends, and communicates between the pump chamber 21a and the outside of the pump body 21 from the outside of the pump body 21. The pump chamber 21a has a structure capable of sucking air. As shown in FIG. 7( c ), the second intake valve 24 has a valve case 46 having a flow passage 24 a that penetrates the inside thereof, and a valve body 47 that opens and closes the flow passage 24 a.

The valve case 46 is inserted into the through hole 33c of the lower end surface portion 33 and the through hole 34d of the spacer 34 to project into the spacer 34, and is connected to the simulated trachea 27 in the spacer 34, and an end of the connecting portion 46b. And a flange portion 46a attached to the lower end surface portion 33. As shown in the diagram on the left side of FIG. 7C, the valve body 47 has air flowing from the connection portion 46b side toward the flange portion 46a side (from the lower side to the upper side in FIG. 7C). In this case, the flow path 24a is opened, and as shown in the diagram on the right side of FIG. 7C, from the flange portion 46a side toward the connecting portion 46b side (from the upper side to the lower side in FIG. 7C). ) When the air or the liquid W flows, the flow path 23a is closed.

The simulated venous tube 25 is formed of a flexible tube having a predetermined length and made of transparent or translucent synthetic resin, and has a channel 25a for allowing the air or the liquid W to flow therethrough. The simulated venous tube 25 is open at both ends, one end thereof is connected to the connecting portion 41b of the inhalation valve 22, and the other end is an open end. The other end of the simulated intravenous line 25 is immersed in the liquid W stored in the first container 51, as shown in FIG.

Similar to the simulated venous tube 25, the simulated arterial tube 26 is formed of a flexible tube having a predetermined length and made of transparent or translucent synthetic resin, and has a flow path through which the air or the liquid W is circulated. 26a. The simulated arterial tube 26 is open at both ends, one end is connected to the connecting portion 43b of the discharge valve 23, and the other end is an open end. The other end of the simulated arterial tube 26 is placed in the second container 52, as shown in FIG.

The simulated trachea 27 is formed of a flexible tube made of a synthetic resin and having a predetermined length, and has a flow path 27a for circulating air therein. The simulated trachea 27 is open at both ends, one end is connected to the connecting portion 46 of the second intake valve 24, and the other end is an open end. The open end 27b of the simulated trachea 27 also functions as a connection portion that allows connection of the resistance valve 28 (see FIG. 10) that is the second assist device for cardiopulmonary resuscitation.

The cover 12 is formed of an elastic member that elastically deforms due to compression to contract the pump body 21 and elastically returns by releasing pressure to extend the pump body 21. As shown in FIGS. 1, 2 and 4, the cover 12 is formed by three-dimensionally molding a plate-shaped member made of, for example, transparent or translucent synthetic resin, and has a smooth surface imitating the chest of the human body. It has a unique shape.

The cover 12 has a flat portion 12a formed flat on the upper surface of the cover 12 and in a portion corresponding to the central lower third of the sternum. The cover 12 is elastic and deformed when the user of the heart massage practice device 10 pushes down the flat portion 12a with both hands and presses the flat portion 12a, and the cover 12 is depressed by a predetermined distance according to the pushing force, and is elastically restored by releasing the pressure. Have power The flat portion 12a is arranged at a position facing the upper end surface portion 32 of the pump main body 21, and for example, is a cardiopump or the like for mounting the first cardiopulmonary resuscitation assisting device for pressing and pulling up the cover 12. Function as a department. The flat portion 12a has, for example, a smooth surface capable of adsorbing a suction cup of a cardio pump.

The outer edge of the cover 12 is provided with an edge portion 12b formed in a flat shape with a predetermined width (mm) so as to contact the base plate 17 over the entire circumference. Further, the side surface of the cover 12 is provided with a through hole 12c through which the simulated venous tube 25 passes, a through hole 12d through which the simulated arterial tube 26 passes, and a through hole 12e through which the simulated trachea 27 passes.

An upper end surface portion 32 of the pump body 21 is detachably fixed to a portion of the inner wall surface of the cover 12 facing the flat portion 12a by a pair of first surface fasteners 13. As shown in FIG. 1, FIG. 5 and FIG. 6, the pair of first surface fasteners 13 are rectangular with chamfered four corners, and are composed of surface pressure-bonding members having a predetermined thickness. The pair of first surface fasteners 13 are configured to be attached by pressing the brushed side on the hook and the looped and densely brushed side, and are detachably fastened.

One first surface fastener 13 of the pair of first surface fasteners 13 is fixed to the upper end surface portion 32 of the heart pump 11, and the other first surface fastener 13 is fixed to the inner wall surface of the cover 12, The cover 12 and the upper end surface portion 32 are detachably fixed. Examples of the first surface fastener 13 include Velcro (registered trademark of Kuraray Co., Ltd.) and Velcro (registered trademark of BV IB).

As shown in FIGS. 2, 5 and 6, the fixing plate 14 is a rectangular plate having a predetermined thickness and made of glass, wood, synthetic resin or metal. The spacer 34 of the pump body 21 is brought into contact with the upper surface of the fixed plate 14. The fixing plate 14 is detachably fixed to the base plate 17 by a pair of second surface fasteners 15.

As shown in FIGS. 2, 3, and 5, the pair of second surface fasteners 15 are rectangular and are surface pressure-bonding members having a predetermined thickness. Similar to the first surface fastener 13, the pair of second surface fasteners 15 are configured to adhere by pressing the brushed side on the hook and the looped and densely brushed side. And are detachably fixed to each other.

One second surface fastener 15 of the pair of second surface fasteners 15 is fixed to the lower surface of the fixing plate 14 as shown in FIG. 2, and the other second surface fastener 15 is shown in FIG. Thus, it is fixed to the upper surface of the base plate 17. As the second surface fastener 15, similar to the first surface fastener 13, Velcro (registered trademark of Kuraray Co., Ltd.) and Velcro (registered trademark of BVBIA) can be used.

As shown in FIGS. 2, 5, and 6, the pump body 21 is integrally fixed to the fixing plate 14 by the belt fastener 16. The belt fastener 16 is made of a belt-shaped surface pressure-bonding member having a predetermined width and a predetermined thickness. Similar to the first surface fastener 13, the belt fastener 16 is configured to be adhered by pressing the brushed side on the hook and the looped and densely brushed side, and they are attached to and detached from each other. It is fixed freely.

As shown in FIGS. 2 and 5, the belt fastener 16 is passed through the pair of belt guide portions 32b of the upper end surface portion 32, is passed through between the fixed plate 14 and the base plate 17, and is adhered at the portions where both ends overlap. By being attached, the pump main body 21 is detachably fixed to the fixed plate 14 and integrated.

The belt fastener 16 has a function of allowing the contraction of the bellows portion 31 by being slackened by the pressure of the cover 12 and the pump main body 21, while limiting the expansion of the bellows portion 31 by releasing the compression so that the bellows portion 31 does not extend beyond a predetermined length. .. In the present embodiment, the belt fastener 16 is adjusted to have a length such that the upper end surface portion 32 abuts on the inner wall surface of the cover 12 when the cover 12 is not pressed. As the belt fastener 16, similar to the first surface fastener 13, Velcro (registered trademark of Kuraray Co., Ltd.) and Velcro (registered trademark of BVBIA) can be used.

As shown in FIGS. 1, 3, 4, and 5, the base plate 17 is made of a plate made of wood, synthetic resin, or metal that is rectangular and has a predetermined thickness. The other second surface fastener 15 of the pair of second surface fasteners 15 is fixed to the upper surface of the base plate 17, and the heart pump 11 is connected to the base plate 17 via the other second surface fastener 15. It is detachably attached to the upper surface. The base plate 17 has such a size and weight that a person who uses the heart massage practice device 10 can easily carry it.

Next, the operation of the heart massage practice device 10 according to the present embodiment will be described with reference to the drawings. Note that, for convenience of explaining the operation of the heart pump 11 of the heart massage practice device 10, in FIGS. 8A to 8D, the first suction valve 22 is illustrated so as to be located above the discharge valve 23. Showing. Even if the first suction valve 22 is located above the discharge valve 23, both functions in the same manner as when the first suction valve 22 is located next to the discharge valve 23.

In the practice with the heart massage practice device 10 according to the present embodiment, the practice is started from the initial state shown in FIG. 8A, that is, the state where the heart massage practice device 10 is initially set for the practice. A first container 51 filled with a liquid W simulating human blood, for example, water is arranged near the heart massage practice device 10, and the opening end of the simulated intravenous tube 25 is immersed in the liquid W. ..

In addition, the second container 52 is placed in the vicinity of the first container 51 in an empty state, and the open end of the simulated intravenous line 25 is inserted into the second container 52. In this initial state, the first suction valve 22, the second suction valve 24, and the discharge valve 23 are closed.

Next, when the cover 12 is pressed by the user and the pump body 21 contracts as shown in FIG. 8B and the inside of the pump chamber 21a of the pump body 21 becomes a positive pressure, the air inside the pump chamber 21a is released. , Is discharged from the discharge valve 23, passes through the simulated arterial tube 26, and is discharged from the open end into the second container 52. At this time, the first suction valve 22 and the second suction valve 24 are in the closed state, and the discharge valve 23 is in the open state.

Next, when the pressure on the cover 12 by the user is released and the pump body 21 extends as shown in FIG. 8C and the inside of the pump chamber 21a of the pump body 21 becomes negative pressure, the simulated venous line 25 The liquid W in the first container 51 is sucked from the opening end, passes through the simulated venous tube 25, and flows from the first suction valve 22 into the pump chamber 21a. At the same time, the outside air passes through the simulated trachea 27 and flows into the pump chamber 21a from the second suction valve 24. At this time, the first suction valve 22 and the second suction valve 24 are in the open state, and the discharge valve 23 is in the closed state.

The operation of sucking the liquid W from the first suction valve 22 into the pump chamber 21a by releasing the pressure on the cover 12 by the user and the suction of air from the second suction valve 24 into the pump chamber 21a. The action that corresponds to the inhalation process in the heart massage practice method.

Next, when the cover 12 is pressed again by the user, the pump body 21 contracts as shown in FIG. 8D, and the inside of the pump chamber 21a of the pump body 21 becomes a positive pressure. At least one of the liquid W and the liquid W is discharged from the discharge valve 23, passes through the simulated arterial tube 26, and is discharged from the open end into the second container 52. At this time, the first suction valve 22 and the second suction valve 24 are in the closed state, and the discharge valve 23 is in the open state.

The cover 12 is pressed by the user, at least one of the air and the liquid W in the pump chamber 21a is discharged from the discharge valve 23, and is discharged from the open end into the second container 52 through the simulated arterial tube 26. The operation corresponds to the ejection process in the method of practicing heart massage.

Next, the function and effect of the heart massage practice device 10 according to the present embodiment will be described.

The heart massage practice device 10 includes a pump chamber 21a formed in a stretchable pump body 21, a first suction valve 22 for sucking the liquid W into the pump chamber 21a, and a second suction valve 22 for sucking air into the pump chamber 21a. It has a suction valve 24 and a discharge valve 23 for discharging at least one of the air and the liquid W in the pump chamber 21a.

Therefore, when the user of the heart massage practice device 10 presses the cover 12, the pump main body 21 contracts, the pump chamber 21a of the pump main body 21 becomes a positive pressure, and air or liquid in the pump chamber 21a of the pump main body 21 is discharged. At least one is discharged from the discharge valve 23 (discharge step). When the cover 12 is released from compression, the pump main body 21 extends, the pump chamber 21a of the pump main body 21 becomes negative pressure, and the liquid W and the air are pumped from the first suction valve 22 and the second suction valve 24. Is inhaled (inhalation process). That is, the liquid W is sucked into the pump chamber 21a from the outside of the pump body 21 through the first suction valve 22 by the compression and release, and the air is sucked into the pump chamber 21a from the outside of the pump body 21 through the second suction valve 24. Inhaled.

The heart massage practice device 10 is provided with a second suction valve for sucking air into the pump chamber 21a from the outside in addition to the first suction valve 22 for sucking liquid into the pump chamber 21a from the outside. At this time, both the liquid W and the air can be sucked into the pump chamber 21a from the first suction valve 22 and the second suction valve 24.

For example, in actual heart massage for a human body, the heart is pressed by externally pressing the sternum, but at the same time, other thoracic internal organs existing around the heart such as the lungs which are respiratory organs are also pressed. In particular, the air in the lungs serves as a cushioning material when compressing the sternum, and acts to prevent contraction of the heart due to compression. Therefore, in actual heart massage, the amount of blood that can be pumped from the heart changes depending on the amount of air remaining in the lungs and the amount of air that is simultaneously taken into the lungs by the heart massage.

According to the heart massage practice device 10, since both the liquid W and the air are sucked into the pump body 21 from the first suction valve 22 and the second suction valve 24 during the suction process, the heart such as the lungs. It is possible to artificially create a state similar to the actual state of the human body in consideration of other internal rib cages, and the user of the heart massage practice device 10 can experience a heart massage similar to an actual heart massage for the human body. You can do advanced training.

The heart massage practice device 10 has a base plate 17 placed on the floor surface, and a cover 12 placed on the base plate 17 and accommodating the pump body 21 between the base plate 17 and the pump body 21. The end of the pump main body 21 on one side in the expansion/contraction direction is fixed to the base plate 17, and the end of the pump main body 21 on the other side in the expansion/contraction direction is fixed to the cover 12. It is formed by an elastic member that contracts the main body 21 and elastically returns by releasing the compression to extend the pump main body 21.

Therefore, the cover 12 can be elastically deformed by the compression to contract the pump body 21, and the cover 12 can be elastically restored by the release of the compression to extend the pump body 21. Therefore, the user of the heart massager 10 can obtain a repulsive force due to the cooperation of the elastic force of the cover 12 and the elastic force of the pump body 21 at the time of compression, and the pressing sensation similar to that of an actual heart massage is obtained. You can experience it. Further, the lower end surface portion 33 which is one end portion of the pump body 21 on the one side in the expansion and contraction direction is fixed to the base plate 17, and the upper end surface portion 32 which is the other end portion of the pump body 21 on the other side in the expansion and contraction direction is fixed to the cover 12. For example, when the cover 12 elastically returns due to pressure release, the upper end surface portion 32 of the pump body 21 is pulled up by the cover 12 to urge the pump body 21 in the extending direction to urge the elastic return of the pump body 21. You can

Since the cover 12 of the heart massage practice device 10 is formed of a transparent or translucent elastic member, the user of the heart massage practice device 10 releases the pressure of the cover 12 when the cover 12 is pressed. The operation of the pump main body 21 at that time can be visually observed, and the movement of the heart during actual heart massage can be easily understood.

Further, according to the heart massage practice device 10 according to the present embodiment, since the pump body 21 quickly elastically returns, the number of times of compression per minute is about 100 to 120, and the liquid W can be well delivered. Is obtained.

The heart massage practice device 10 includes a first surface fastener 13 that detachably fixes the lower end surface portion 33, which is one end of the pump body 21 on the one side in the expansion and contraction direction, and the base plate 17, and the other side of the pump body 21 on the other side in the expansion and contraction direction. It has an upper end surface portion 32 that is an end portion and a second surface fastener 15 that detachably fixes the cover 12, and each component is detachable by the first surface fastener 13 and the second surface fastener 15. Since the components are fixed to each other, each component can be easily disassembled, and the convenience such as maintenance can be improved.

In the heart massage practice device 10, a transparent or translucent simulated vein tube 25 is connected to the first inhalation valve 22, and a transparent or translucent simulated artery tube 26 is connected to the discharge valve 23. Therefore, the user of the heart massage practice device 10 can visually observe the movement of the liquid W during inhalation and discharge from the outside of the transparent or translucent simulated venous tube 25 and simulated artificial tube 26, and the operation of the user and the liquid. The relationship with the movement of the person can be easily grasped, and the effect of practicing heart massage can be improved.

The heart massage practice method according to the present embodiment is a method of practicing a heart massage using the heart massage practice tool 10, and includes a discharge step of discharging at least one of air and liquid in the pump body 21 by compression, and compression. The release process is alternately performed with a suction process in which both the liquid W and the air are sucked into the pump chamber 21a of the pump body 21.

According to the heart massage practice method according to the present embodiment, the user of the heart massage practice instrument 10 can visually observe the movement of the pump body 21 and the movement of the liquid by alternately performing the discharge process and the suction process. it can. During the inhalation process, both the liquid W and the air are inhaled into the pump body 21 from the first inhalation valve 22 and the second inhalation valve 24. It is possible to artificially create a state similar to the actual state of the human body, and the user of the heart massage practice device 10 can experience a heart massage with a sensation similar to that of an actual heart massage for the human body, which is highly advanced. You can practice.

As another example of the present embodiment, various cardiopulmonary resuscitation assisting devices may be used as the heart massage practice device 10. For example, as shown in FIG. 9, a cardio pump P (first cardiopulmonary resuscitation assisting device) that is actually used for heart massage of a human body can be attached to the flat portion 12a of the cover 12 for use.

The cardio pump P is a device for adsorbing to the chest and pressing and pulling it up, and as shown in FIG. 9, a suction cup K, a disc E, and a connection R connecting the suction cup K and the disc E. And have. When performing a heart massage, the cardio pump P adsorbs the sucker part K to the chest of the human body and presses down the disc part E to press the sternum, and further pulls up the disc part E to make negative pressure in the chest cavity to make the heart. It is used to increase the amount of blood circulated into a vein. It has a function of increasing cardiac output by repeating such compression and pulling up.

As shown in FIG. 10, the cardio pump P sucks the suction cup portion K on the flat portion 12a of the cover 12, and repeatedly presses and lifts the cover 12. Even if the cover 12 is pulled up by the suction cup portion K, as shown in FIG. 5, the pump main body 21 is integrated with the belt fastener 16 and the base plate 17 with the second hook-and-loop fastener 15. Since the main body 21 and the cover 12 are integrated by the first surface fastener 13, the pump main body 21 does not separate from the base plate 17.

Therefore, by pulling up the cover 12 with the suction cup portion K, the cover 12 and the bellows portion 31 of the pump body 21 can be forcibly returned from the compressed state to the uncompressed state, and the heart massage practice device 10 It is possible to carry out the exercise using the and the cardio pump P at the same time.

A flat portion 12a is provided on the upper surface of the cover 12 of the heart massage practice device 10 and at a position facing the upper end surface portion 32 of the pump body 21, so that the flat portion 12a functions as a mounting portion for mounting the cardio pump P. Has become. The card body pump P is attached to the flat portion 12a for compression, and the pump body 21 can be forcibly extended by pulling it up when releasing the compression. When the cardio pump P is used for the heart massage practice device 10, more liquid W can be sucked into the pump chamber 21a more quickly, the effect of the cardio pump P can be felt, and the cardio pump P can be used efficiently. Can be mastered.

In addition, as a cardiopulmonary resuscitation assisting device, for example, a resistance valve 28 (second cardiopulmonary resuscitation assisting device) that restricts the inhalation amount of air from the airways to the lungs when performing a heart massage of a human body is used for heart massage practice. It can also be used in the instrument 10. The resistance valve 28 is connected to the open end 27b of the simulated trachea 27, as shown in FIG.

The resistance valve 28 has a function of adjusting the intake amount of the air that passes through the flow path 27a of the simulated trachea 27 and the second intake valve 24 and is sucked into the pump chamber 21a from the outside of the pump body 21, For example, even with an inspiratory air resistance valve device (ITD) that can be attached to the oral cavity of a human body to increase the venous return amount and cardiac output during so-called CPR, and the negative pressure of intrathoracic pressure during CPR Good.

When the operation of heart massage is performed on the heart massage practice device 10 with the resistance valve 28 connected to the open end 27b of the simulated trachea 27, compared with the case where the resistance valve 28 is not connected, The amount of air that passes through the suction valve 24 and flows into the pump chamber 21a decreases, and the amount of liquid W that passes through the first suction valve 22 and flows into the pump chamber 21a increases, thereby pumping more liquid W. It can be sucked into the chamber 21a and discharged. Therefore, it is possible to artificially create a state in which the amount of air entering the lungs is limited in the actual cardiac massage to the human body by using the resistance valve 28, and the effect of the resistance valve 28 can be actually felt, and the method of using the resistance valve 28. Can be learned efficiently.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. You can make changes.

10... Heart massage practice tool 11... Heart pump 12... Cover 12a... Flat portion 12b... Edge portion 13... First surface fastener 14... Fixing plate 15... Second hook-and-loop fastener 16... Fastener 17... Base plate 21... Pump body 21a... Pump chamber 22... First suction valve 23... Discharge valve 24... Second suction Valve 25... Simulated vein tube 26... Simulated arterial tube 27... Simulated trachea 28... Second cardiopulmonary resuscitation assisting device 31... Bellows (hollow elastic body)
32... Upper end surface portions 32a, 33a... Insertion portion 33... Lower end surface portion 34... Spacers 41, 43, 46... Valve cases 42, 44, 47... Valve body W... Liquid P: Cardio pump (first cardiopulmonary resuscitation assist device)

Claims (8)

A pump body that contracts when compressed and expands when released.
The negative pressure of the pump chamber of the pump main body generated when the pump main body is extended causes the pump chamber of the pump main body and the outside of the pump main body to communicate with each other and the pump from the outside of the pump main body. A first suction valve that allows liquid to be sucked into the pump chamber of the main body;
The negative pressure of the pump chamber of the pump main body generated when the pump main body is extended causes the pump chamber of the pump main body and the outside of the pump main body to communicate with each other and the pump from the outside of the pump main body. A second suction valve that allows air to be sucked into the pump chamber of the main body;
The positive pressure of the pump chamber of the pump body generated when the pump body contracts causes the pump chamber of the pump body and the outside of the pump body to communicate with each other, and thereby the liquid and air in the pump chamber A discharge valve that allows at least one to be discharged to the outside,
A heart massage exercise device comprising: A base plate placed on the floor,
A cover disposed on the base plate to accommodate the pump body between the base plate and the cover,
The pump main body has an end on one side in the expansion/contraction direction of the pump main body fixed to the base plate, and an end on the other side in the expansion/contraction direction of the pump main body is fixed to the cover,
2. The heart massager according to claim 1, wherein the cover is formed of an elastic member that elastically deforms when pressed to contract the pump body, and elastically returns when the pressure is released to extend the pump body. Practice equipment. The heart massage exerciser according to claim 2, wherein the cover is formed of a transparent or translucent elastic member. The cover has a mounting portion at a position facing the end portion on the other side of the pump main body in the expansion/contraction direction, which enables mounting of a first cardiopulmonary resuscitation assisting device for compressing and lifting the cover. The heart massage practice device according to claim 2 or 3, characterized in that. A first surface fastener that detachably fixes the end portion of the pump body on one side in the expansion and contraction direction and the base plate;
The heart according to any one of claims 2 to 4, further comprising: a second surface fastener that detachably fixes the end of the pump main body on the other side in the expansion/contraction direction and the cover. Massage practice equipment. The transparent or translucent simulated vein tube is connected to the first inhalation valve, and the transparent or translucent simulated artery tube is connected to the discharge valve. 5. The heart massage training device according to any one of 5 above. A simulated trachea is connected to the second intake valve,
A second cardiopulmonary resuscitation assisting device for limiting an inhalation amount of air inhaled from the outside of the pump body into the pump chamber of the pump body through the second inhalation valve can be connected to the simulated trachea. The heart massage practice device according to any one of claims 1 to 6, further comprising a connecting portion. A cardiac massage practice method using the cardiac massage practice instrument according to any one of claims 1 to 7,
A discharging step of discharging at least one of air and liquid in the pump chamber of the pump body to the outside of the pump body by compression;
An inhalation step of inhaling both air and liquid from the outside of the pump body into the pump chamber of the pump body by releasing the compression,
A method of practicing heart massage, comprising:

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