JP7106109B2 - automatic cardiopulmonary resuscitator - Google Patents

Description

The present disclosure relates to automatic cardiopulmonary resuscitators.

As Cardiopulmonary Resuscitation (CPR), a method of combining manual chest compression and mouth-to-mouth artificial respiration is known. However, consistent, high-quality CPR is difficult to perform manually. Therefore, a cardiopulmonary resuscitator in which chest compression and artificial respiration are automated has been proposed. For example, Applicant has proposed an automatic cardiopulmonary resuscitator that provides cardiac massage by applying repetitive shocks at coordinated timed intervals and ventilates breathing gas at coordinated times and durations. (See, for example, Patent Document 1.).

Cloth stretchers are easy to transport on stairs and narrow spaces, and are often used in emergency situations. A cloth stretcher has been proposed that facilitates the transportation of an automatic cardiopulmonary resuscitator and allows quick and safe mounting and transportation (see, for example, Patent Documents 2 and 3).

JP-A-2000-84028 Utility Model Registration No. 3161751 JP 2015-139595 A

An automatic cardiopulmonary resuscitator performs chest compressions with an impact mallet having a rod and a head pad provided at the tip of the rod. To improve the rate of cardiopulmonary resuscitation, it is important to apply the percussive mallet to the appropriate location of the patient's heart segment and to continue the cardiac massage. At this time, it is desired that the bottom surface of the head pad is pressed substantially horizontally against the chest of the patient in order to efficiently transmit the force of compression by the impact hammer to the patient. However, during transportation on a cloth stretcher, for example, in narrow places such as stairs, the patient may have to assume an L-shaped or V-shaped posture, and it is difficult to keep the patient horizontal at all times. . If the patient's posture is not kept horizontal, it may not be possible to press the bottom surface of the head pad substantially horizontally against the patient's chest.

The present disclosure provides an automatic cardiopulmonary resuscitator that can properly press the head pad of the impact mallet against the patient's chest regardless of the patient's posture, and efficiently transmit the force of compression from the impact mallet to the patient. intended to provide

An automatic cardiopulmonary resuscitator according to the present invention comprises an impact mallet having a rod and a head pad provided at the tip of the rod, and an elevating mechanism for reciprocating the impact mallet up and down. In an automatic cardiopulmonary resuscitator that performs chest compression, the head pad has an upper opening and a fitting part that communicates with the upper opening and fits the tip of the rod, and the inner peripheral surface of the upper opening and the rod, a gap for adjusting the angle of the head pad is provided, and the rod has a notch extending in a direction intersecting the height direction of the patient at a position corresponding to the gap. and the notch makes the allowable range of angle adjustment of the head pad larger in the patient's height direction than in the patient's left-right direction . Due to the notch, the allowable range of angle adjustment of the head pad is larger in the patient's height direction than in the patient's left and right direction. It is possible to flexibly respond to changes in the patient's posture where it is easy to perform chest compressions in a more accurate position.

In the automatic cardiopulmonary resuscitation device according to the present invention, it is preferable that the gap is configured to maintain a state in which a predetermined surface of the head pad is applied to the chest compression position of the patient. Even if the posture of the patient becomes L-shaped or V-shaped while being transported on a cloth stretcher, the head pad follows the patient's chest compression position so that the head pad is suitable for the patient's chest compression position. can be maintained in contact with

In the automatic cardiopulmonary resuscitation device according to the present invention, the surface of the tip of the rod is preferably rough. Since the head pad is prevented from coming into close contact with the tip of the rod and becomes slippery, the angle of the head pad can be adjusted more smoothly. Therefore, it is possible to prevent the tip of the rod from coming into close contact with the inside of the head pad and impairing the angle adjusting function of the head pad. In addition, the head pad can be easily and simply replaced due to aged deterioration or contamination.

In the automatic cardiopulmonary resuscitator according to the present invention, the head pad further has a lower opening that communicates with the fitting, and the automatic cardiopulmonary resuscitator emits laser light from the lower opening toward the patient. A laser irradiation mechanism for irradiating light is provided, and the impact mallet is provided with initial position confirmation means for confirming that the head pad is in a position that does not interfere with the irradiation of the laser light when the laser light is applied. is preferred. By irradiating the patient with laser light more reliably, a more appropriate compression position can be confirmed.

In the automatic cardiopulmonary resuscitator according to the present invention, the head pad further has a lower opening that communicates with the fitting, and the automatic cardiopulmonary resuscitator emits laser light from the lower opening toward the patient. It is preferable that a laser irradiation mechanism for irradiating light is provided, and the maximum inclination angle for adjusting the angle of the head pad is set to an angle that does not hinder the irradiation of the laser light. By irradiating the patient with laser light more reliably, a more appropriate compression position can be confirmed.

In the automatic cardiopulmonary resuscitation device according to the present invention, it is preferable that the head pad has a flat portion in a portion that contacts the patient. The load caused by pressing the head pad against the patient can be distributed, and the chest compression fracture can be prevented when the chest is compressed. In addition, an approximate cardiac massage can be reproduced by manual techniques. In addition, by having the flat portion, even if the patient's posture changes during transport, the flat portion can be pressed so that it is always parallel to the patient's chest compression position. The chest compression operation can be reproduced more faithfully.
In the automatic cardiopulmonary resuscitation device according to the present invention, the automatic cardiopulmonary resuscitation device includes artificial respiration means and chest compression means having the impact mallet and the elevating mechanism, and the artificial respiration means and the chest compression means is preferably configured as an integrated device. It is easy to carry around and can quickly start cardiopulmonary resuscitation in the early stages of critical care.

According to the present disclosure, automatic cardiopulmonary resuscitation capable of appropriately pressing the head pad of the impact hammer against the patient's chest regardless of the patient's posture and efficiently transmitting the force of compression by the impact hammer to the patient. equipment can be provided.

1 is a perspective view showing an example of an automatic cardiopulmonary resuscitator according to this embodiment; FIG. It is a figure for demonstrating an impact mallet. FIG. 3 is a perspective view showing an example of a tip portion of an impact mallet; 4 is a cross-sectional view taken along line AA of FIG. 3; FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3; FIG. It is a cross-sectional view showing an example of an initial position confirming means. FIG. 10 is a diagram for explaining a preferable relationship between the irradiation direction of laser light and the maximum tilt angle for angle adjustment of the head pad; It is a perspective view which shows an example of the front-end|tip part of a rod. It is a top view which shows an example of a cloth stretcher. FIG. 10 is a view for explaining bag portions in the cloth stretcher shown in FIG. 9;

Next, the present invention will be described in detail with reference to embodiments, but the present invention should not be construed as being limited to these descriptions. Various modifications may be made to the embodiments as long as the effects of the present invention are achieved.

The automatic cardiopulmonary resuscitator 100 according to this embodiment, as shown in FIG. 1 or FIG. and a lifting mechanism 122 that reciprocates to and from the head pad 121b, as shown in FIG. and a fitting portion 52 fitted to the tip of the rod 121a, and gaps 71 and 72 for adjusting the angle of the head pad 121b are provided between the inner peripheral surface of the upper opening 51 and the rod 121a. .

First, the configuration of the automatic cardiopulmonary resuscitator 100 will be described with reference to FIG. It is preferable that the automatic cardiopulmonary resuscitation device 100 is configured as an apparatus in which the artificial respiration means 110 and the chest compression means 120 are integrated. It is easy to carry around and can start cardiopulmonary resuscitation quickly in the early stage of critical care.

The artificial respiration means 110 has a hose 111 for blowing gas into the patient and a gas supply system (not shown) for supplying gas to the hose 111 . The gas is for example pure oxygen, oxygen-enriched air or air. One end of the hose 111 is connected to a hose receptacle 112 provided on the housing 101 of the cardiopulmonary resuscitator 100 . The other end of the hose 111 is connected to a mask (not shown) worn on the patient or an endotracheal intubation tube (not shown).

The chest compression means 120 includes an arch portion 10, a vertical rod 20, and a back plate 30.

The arch portion 10 has a top portion 11 and left and right side portions 12, and is arranged across the upper chest of the patient. The arch portion 10 has an impact hammer 121 that protrudes downward from the top surface portion 11 and is supported on the top surface portion 11 so as to be vertically movable, and an elevating mechanism 122 that vertically reciprocates the impact hammer 121 . The impact mallet 121 has a rod 121a connected to the lifting means 122 and a head pad 121b attached to the lower end of the rod 121a and applied to the patient's chest. The lifting means 122 has a cylinder 123 when the driving method of the lifting means 122 is a gas driving method. The cylinder 123 is container-shaped and has a gas supply port (not shown) and a gas exhaust port (not shown). A piston (not shown) and a spring (not shown) for pushing back the piston during exhaust are arranged in the internal space of the cylinder 123 . A portion of the arch portion 10 preferably forms a housing 101 . The housing 101 accommodates a gas supply system for the artificial respiration means 110, a drive system for the lifting means 122, a control means for the cardiopulmonary resuscitator 100, and the like.

A pair of vertical rods 20 are provided on the left and right, and are fixed to fixing portions 13 provided at the lower ends of the left and right side portions 12 of the arch portion, respectively. The vertical rod 20 engages with, for example, a ratchet of the fixed portion 13 to support the arch portion 10 so as to be vertically movable. A scale 21 is preferably displayed on the vertical rod 20 . With the arch portion 10 set on the patient, the arch portion 10 is pushed down toward the chest of the patient, and the value indicated by the scale 21 when the head pad 121b comes into contact with the chest of the patient is the chest thickness of the patient. corresponds to Based on the read chest thickness, the compression depth of the impact mallet 121 can be set. In this way, finer adjustment of the compression depth suitable for each patient becomes possible.

The back plate 30 is a plate that supports the patient's chest lower surface. The back plate 30 is formed by, for example, engaging an engaging portion (not shown) such as a groove or a hole provided in the back plate 30 with a projection (not shown) provided at the lower end of the vertical rod 20 so that the arch portion 10 is detachably fixed to the

It is preferable that the back plate 30 has a belt through-hole 31 penetrating in the plate thickness direction. The automatic cardiopulmonary resuscitator 100 can be fixed to the cloth stretcher 300 by inserting, for example, the belt 331 of the cloth stretcher 300 as shown in FIG. The cloth stretcher 300 in FIG. 9 is an example of a preferred embodiment, and the present invention is not limited to the type of cloth stretcher 300. FIG.

Next, the chest compression means 120 will be described in more detail with reference to FIGS. 2 to 5. FIG. In FIG. 2, the inside of the head pad 121b is shown by dotted lines. 3 shows a state in which the pad receiving portion 44 is removed from the center rod portion 43. FIG. The AA line cross section in FIG. 3 is a cross section taken along a plane parallel to the left-right direction of the patient, and FIG. 4 shows a cross-sectional view. The BB line cross section in FIG. 3 is a cut plane parallel to the patient's height direction (also referred to as the head-foot direction), and FIG. 5 shows a cross-sectional view.

Preferably, the rod 121a has a center rod portion 43 and a pad receiving portion 44, as shown in FIG. The center rod portion 43 is rod-shaped and is a portion fixed to the lifting means 122 . The pad receiving portion 44 is a portion that forms the tip portion of the rod 121a and holds the head pad 121b. The pad receiving portion 44 preferably has a spherical portion 45 and a base portion 46 . 2 and 3 show the form in which the pad receiving portion 44 is separate from the center rod portion 43 as an example, but the present invention is not limited to this, and the pad receiving portion 44 is integrated with the center rod portion 43. may When the pad receiving portion 44 is separate from the center rod portion 43, for example, a fixing projection 47 (shown in FIG. The pad receiving portion 44 may be detachably attached to the center rod portion 43 by inserting it into an insertion hole (not shown) provided in the lower end portion and fixing it with a fixing member (not shown) such as a screw.

The head pad 121b is a portion that is pressed against the patient's chest during chest compression. The head pad 121b is preferably made of soft resin. By making the head pad 121b made of soft resin, it is possible to perform a flexible operation similar to manual chest compression. The soft resin is, for example, silicone resin such as silicone rubber, or urethane resin such as urethane rubber. Among these, the soft resin is preferably silicone rubber. The hardness of the head pad 121b is preferably about 20. Moreover, it is preferable that an antibacterial agent is kneaded into the soft resin.

As shown in FIG. 2, the head pad 121b has an upper opening 51 and a fitting portion 52 as a space for accommodating the pad receiving portion 44 of the rod 121a. The base end portion 46 of the pad receiving portion 44 is preferably accommodated in the upper opening portion 51 . The fitting portion 52 preferably accommodates the spherical portion 45 of the pad receiving portion 44 . Moreover, it is preferable that the head pad 121b further has a lower opening 53 that communicates with the fitting portion 52 . The lower opening 53 opens on the surface facing the patient. The surface facing the patient is, for example, the bottom surface S of the head pad 121b. Moreover, it is preferable that an annular member 55 is arranged at a connection portion between the lower opening 53 and the fitting portion 52 . The annular member 55 is made of metal, for example, and is a support plate that supports the tip of the rod 121a (for example, the pad receiving portion 44), and prevents the tip of the rod 121a from jumping out of the lower opening 53. can be done.

In the automatic cardiopulmonary resuscitator according to this embodiment, it is preferable that the head pad 121b has a flat portion 54 in the portion that contacts the patient. The load caused by pressing the head pad against the patient can be distributed. In addition, it is possible to reproduce an approximation of heart massage by manually compressing the chest using the base of the palm (the part at the base of the palm, the part of the palm just above the wrist).

The head pad 121b is attached so that it can move freely without sticking to the pad receiving portion 44 of the rod 121a. Here, as shown in FIG. 3, gaps 71 and 72 for angle adjustment are provided between the inner peripheral surface of the upper opening 51 and the rod 121a. The gaps 71 and 72 are preferably configured to maintain a state in which a predetermined surface of the head pad 121b is applied to the chest compression position of the patient. The head pad 121b can follow the patient's chest compression position to keep the head pad 121b in proper contact with the patient's chest compression position. The gaps 71 and 72 ensure that the predetermined surface of the head pad 121b is always parallel to the patient's chest compression position when the patient's posture is L-shaped or V-shaped while being transported on the cloth stretcher. It is preferable that the head pad 121b is designed to have a size that allows the head pad 121b to move following the contact. The predetermined surface of the head pad 121b is preferably, for example, the bottom surface S of the head pad 121b, and more preferably the plane portion 54 of the head pad 121b.

The gaps 71 and 72 for adjusting the angle of the head pad 121 b are preferably provided between the inner peripheral surface of the upper opening 51 and the base end 46 . The head pad 121b can be freely moved to a position where the inner peripheral surface of the upper opening 51 abuts against the rod 121a (for example, the proximal end 46) and the gaps 71 and 72 disappear. By providing the gaps 71 and 72, the attachment angle of the head pad 121b to the rod 121a can be changed. The angle can be adjusted while maintaining a state in which a predetermined position of the head pad 121b (for example, the bottom surface S of the head pad 121b) contacts the patient's chest. Then, in any posture, the bottom surface of the head pad 121b can always be brought into contact with and pressed against the patient's chest compression part in parallel. As a result, the head pad 121b of the impact hammer 121 can be appropriately pressed against the patient's chest regardless of the patient's posture, flexibly responding to changes in the patient's posture. Therefore, even during transportation up stairs or the like, the pressing force of the impact hammer 121 can be continuously and efficiently transmitted to the patient without shifting the pressing position. In addition, it is possible to prevent the chest compression position from shifting during transportation, and to prevent sternum fracture while continuously and safely performing cardiopulmonary resuscitation. When performing chest compressions manually, it is important to repeat up-and-down reciprocating movements while keeping the palms horizontally on the chest compression position. The automatic cardiopulmonary resuscitator 100 according to this embodiment replaces the manual operation during stair transportation, and "mechanically" presses the sternum while maintaining a state in which a predetermined portion of the head pad 121b is in contact with the patient's sternum compression position. You can keep pressing. For example, the head pad 121b of the impact mallet can horizontally follow the chest compression position even when the patient is in a V-shape while being transported on a cloth stretcher. In addition, even when the patient's body is twisted while being transported upstairs on a cloth stretcher, the head pad 121b of the impact hammer can always horizontally follow the patient's sternum compression position.

In the automatic cardiopulmonary resuscitator according to this embodiment, as shown in FIG. It is preferable that the head pad 121b has a notch 48 so that the allowable range of angle adjustment of the head pad 121b is larger in the patient's height direction than in the patient's left-right direction. Notch 48 is preferably provided at proximal end 46 . Due to the notch 48, as shown in FIGS. 3 to 5, the gap 72 in the height direction of the patient is larger than the gap 71 in the lateral direction of the patient. As a result, the allowable range of angular adjustment of the head pad 121b is greater in the patient's height direction than in the patient's lateral direction. As a result, it is possible to flexibly respond to changes in the patient's posture and perform chest compressions in a more accurate position where positional deviation is more likely to occur in the patient's height direction than in the lateral direction during transportation.

FIG. 8 is a perspective view showing an example of the tip portion of the rod. As shown in FIG. 8, in the automatic cardiopulmonary resuscitation device according to this embodiment, the surface of the tip of the rod 121a is preferably rough. Since the head pad 121b is prevented from coming into close contact with the distal end of the rod 121a and becomes more slippery, the angle of the head pad 121a can be adjusted more smoothly. The tip of the rod 121a is in close contact with the inner side of the head pad 121b, so that the angle adjusting function of the head pad 121b is not impaired. In addition, it does not hinder the simple detachment/replacement work of the head pad 121b. A tip portion of the rod 121a is, for example, a spherical portion 45 . Further, the rough surface means that when the tip of the rod 121a is accommodated in the fitting portion 52 of the head pad 121b, the contact area with the inner peripheral surface of the fitting portion 52 is reduced to improve the slipperiness. A surface having unevenness, for example, a satin-finished surface.

FIG. 6 is a cross-sectional view showing an example of initial position checking means. In the automatic cardiopulmonary resuscitator according to this embodiment, the head pad 121b further has a lower opening 53 communicating with the fitting portion 52, for example, as shown in FIG. Equipped with a laser irradiation mechanism that irradiates a laser beam from the unit 53 toward the patient, the impact mallet 121 is an initial position for confirming that the head pad 121b is in a position that does not interfere with the irradiation of the laser beam during the irradiation of the laser beam. Position confirmation means 81 and 82 are preferably provided.

The laser irradiation mechanism has, for example, a hollow portion 41 in which the rod 121a opens downward in the vertical reciprocating direction of the impact hammer 121, and the laser beam passes through the hollow portion 41 and the lower opening 53 of the head pad 121b. It has structures that are illuminated. The laser irradiation mechanism is provided with a laser irradiation unit 42 for irradiating laser light in the hollow portion 41, and irradiates the laser light downward from the lower opening 53, or the laser irradiation unit is provided outside the rod 121a, and the optical A system may be used to guide the laser light into the hollow portion 41 and irradiate the laser light downward from the lower opening 53 . In addition, although FIG. 4 shows an example in which the hollow portion 41 extends over the pad receiving portion 44 and the fixing protrusion 47, the present invention is not limited to this, and the hollow portion 41 is formed between the pad receiving portion 44 and the fixing protrusion 47. In addition to the fixing protrusion 47, it may be provided over the center rod portion 43 (shown in FIG. 2) (not shown). The laser irradiation unit 42 is, for example, a laser pointer. Although the color of the laser light is not particularly limited, it may be red laser light or green laser light, for example. Among these, green laser light is more preferable because of its higher visibility. The laser beam emitted from the laser irradiation unit 42 is irradiated to the patient through the hollow portion 41 and the lower opening 53 of the head pad 121b.

The initial position confirming means 81 and 82 have a structure that allows the operator to sense, tactilely, visually, or audibly, that the head pad 121b is positioned so as not to interfere with the laser beam irradiation. By the initial position confirming means 81 and 82, it is possible to more reliably irradiate the patient with laser light and confirm a more appropriate compression position. The initial position confirmed by the initial position confirming means 81, 82 is preferably a position where the lower opening 53 of the head pad 121b faces directly downward. The initial position confirming means 81 and 82 are generated, for example, as shown in FIG. 6, when a ridge 81 provided on the spherical portion 45 of the rod 121a fits into a groove 82 provided on the fitting portion 52 of the head pad 121b. The structure allows the worker to confirm that the head pad 121b is in the proper position by feeling the vibration.

FIG. 7 is a diagram for explaining a preferable relationship between the irradiation direction of the laser beam and the maximum inclination angle for adjusting the angle of the head pad. In the automatic cardiopulmonary resuscitator according to this embodiment, the head pad 121b further has a lower opening 53 communicating with the fitting portion 52, as shown in FIG. It is preferable that a laser irradiation mechanism for irradiating a laser beam from 53 toward the patient is provided, and the maximum inclination angle for adjusting the angle of the head pad 121b is set to an angle that does not hinder the irradiation of the laser beam. By irradiating the patient with laser light more reliably, a more appropriate compression position can be confirmed. The maximum tilt angle for adjusting the angle of the head pad 121b is the angle when the head pad 121b is tilted to the maximum. As shown in FIG. 7, when the rod 121a has a notch 48 extending in a direction intersecting the height direction (head-foot direction) of the patient, the maximum tilt angle for angle adjustment of the head pad 121b is is tilted in the height direction and moved to a position where the gap 72 in the height direction disappears. It is preferable that the lower opening 53 of the head pad 121b opens on the extension line O of the central axis of the hollow portion 41 when the head pad 121b is tilted to the maximum.

FIG. 9 is a plan view showing an example of a cloth stretcher. The automatic cardiopulmonary resuscitator 100 according to this embodiment is preferably attached to the cloth stretcher 300 . For the cloth stretcher 300, for example, the cloth stretcher described in Patent Document 3 can be used. An example of the cloth stretcher described in Patent Document 3 will be described with reference to FIG. As shown in FIG. 9, the cloth stretcher 300 has a band shape and includes a planned head placement portion 311, a planned chest placement portion 312, a planned abdomen placement portion 313, and legs, which are connected along the longitudinal direction. A seat portion 310 having a portion placement portion 314, handles 321 and 324 provided on the seat portion 310, a side belt piece 331 projecting from the surface of the chest placement portion 312, and a side belt piece 331. It has a shoulder belt piece 332 projecting from the surface of the head placement portion 311 side, and a connecting means 333 for connecting the side belt piece 331 and the shoulder belt piece 332, and the side belt piece 331, A shoulder fixing belt 330 in which at least one shoulder belt piece 332 and connecting means 333 are provided on each of the left and right sides of a center line O parallel to the longitudinal direction of the seat portion 310 is provided.

The seat portion 310 is made of a strip-shaped sheet and is a portion on which a patient is mainly placed. The seat portion 310 has a base end portion 301 from which the armpit-side belt piece 331 projects to the surface of the seat portion 310 and a base end portion 302 from which the shoulder-side belt piece 332 projects to the surface of the seat portion 310 . The base end portions 301 and 302 are, for example, through holes such as notches and rectangular punched holes, or portions where the side belt piece 331 or the shoulder belt piece 332 is sewn to the seat portion 310 . It is more preferable that the proximal end portions 301 and 302 are notches or through holes such as rectangular punched holes. A storage bag 360 for storing a spare battery of the automatic cardiopulmonary resuscitator 100 may be attached to the seat portion 310 . The material of the sheet portion 310 is not particularly limited, but is, for example, natural fibers such as cotton and linen, and synthetic fibers such as acrylic, polyester, and nylon. Alternatively, a fabric made of natural fibers, synthetic fibers, or the like, impregnated or coated with a resin such as vinyl chloride, may be used.

The planned head placement portion 311 , the planned chest placement portion 312 , the planned abdomen placement portion 313 , and the planned leg placement portion 314 are integrally formed to be connected along the longitudinal direction of the seat portion 310 . The sheet portion 310 preferably consists of one sheet. The planned head placement portion 311 is an area closer to one short side of the seat portion 310 than the planned chest placement portion 312 . A pillow 311a may be attached to the head-resting portion 311 in some cases. The planned chest placement portion 312 is a region including the base end portion 302 of the shoulder belt piece 332 and the planned back plate mounting portion 315 of the automatic cardiopulmonary resuscitator 100 . The scheduled abdomen placement portion 313 and the scheduled leg placement portion 314 are regions on the other short side side of the seat portion 310 relative to the scheduled chest placement portion 312 . Here, the planned abdomen placement section 313 and the planned leg placement section 314 are divided for convenience, for example, based on the average height of an adult male, and the legs of the patient are not necessarily placed on the planned leg placement section 314. It is not. That is, when the patient's height is shorter than the average height, the patient's abdomen and legs may be placed on the abdomen placing portion 313 .

The handles 321 to 324 preferably protrude from the peripheral edges of the sheet portion 310 , and more preferably protrude from both long side edges of the sheet portion 310 . The handles 321 to 324 are preferably shaped such that they can be gripped by the carrier's hands or carried by inserting pipes or rods, for example, ring-shaped. Although the arrangement of the handles 321 to 324 is not particularly limited, for example, one or more are arranged in each of the planned head placement portion 311, the planned chest placement portion 312, the planned abdomen placement portion 313, and the planned leg placement portion 314. preferably. In particular, since the waist area of the patient is the heaviest part during transportation of the patient, it is preferable to centrally provide the handles 323 and 324 on the planned abdomen placement portion 313 and the planned leg placement portion 314 . For example, it is preferable that the number of handles 323 and 324 provided on the planned abdomen placement portion 313 and the planned leg placement portion 314 is four or more per long side of the seat portion 310 . In addition, it is preferable that the handles 322 are arranged on both sides of the back plate attachment portion 315 . It can be stably transported with the automatic cardiopulmonary resuscitator 100 attached.

The shoulder fixing belt 330 is a belt that securely binds and fixes the base of the patient's arm to the seat part 310 . The shoulder fixing belts 330 are for the left arm and for the right arm, and are provided one each on the left side and the right side with respect to the center line O parallel to the longitudinal direction of the seat portion 310 . The armpit-side belt piece 331 protrudes from the base end portion 301 to the surface of the seat portion 310 and is wrapped around the patient's armpits to the front shoulders. The shoulder-side belt piece 332 protrudes from the base end portion 302 to the surface of the seat portion 310 and is looped over the patient's upper and front shoulders. The connecting means 333 is, for example, a buckle such as a ratchet buckle or a cam buckle.

The stretcher 300 preferably further includes a belt loop portion 341 provided on the surface of the abdomen placement portion 313 and an abdomen fixing belt 342 passing through the belt loop portion 341, as shown in FIG. By arranging the belt loop part 341 on the surface of the seat part 310, regardless of the size of the patient's waist circumference, the patient can be firmly fixed on the stretcher, and the lateral shift of the patient can be further suppressed. Also, the stretcher 300 may further include knee fixing belts 343 and/or ankle fixing belts 344 as needed. Knee fixing belt 343 and ankle fixing belt 344 are preferably arranged through the back side of seat portion 310 . Also, the stretcher 300 preferably has a shoulder belt 370 as shown in FIG. The shoulder belts 370 may be attached to the short sides of the seat portion 310 as shown in FIG. 9, or may be attached to the corners of the seat portion 310, for example. When the stretcher 300 is used as a storage case for carrying the automatic cardiopulmonary resuscitator 100, it serves as a handle for the case, and when the patient is transported on the stretcher 300, the transporter may carry the stretcher with the back belt 370.

FIG. 10 is a diagram for explaining the bag portion in the cloth stretcher shown in FIG. 9. FIG. The planned leg placement portion 314 has fixing means 350 provided along the edges of both long sides of the seat portion 310. The fixing means 350 secures the distal end portion 314a of the planned leg placement portion 314 to the abdomen. The surface of the sheet portion 310 folded back toward the intended placement portion 313 is fixed detachably, and the distal end portion 314 a of the intended leg placement portion 314 is attached to the intended abdomen placement portion 313 . The bag portion 351 formed by folding the surface of the seat portion toward the inside serves as a leg bag for storing the patient's legs during treatment and as a storage bag for storing the arch portion 310 and the vertical rod 320 during non-treatment. It is preferable to be The fixing means 350 is, for example, a surface fastener. By using the bag portion 351 as a leg bag, it is possible to further suppress the displacement of the patient in the vertical direction. By using the bag part 351 as a housing bag, the number of parts of the life-saving device can be reduced. In addition, it is possible to further speed up the setting at the emergency site.

An example of a method of using the automatic cardiopulmonary resuscitator 100 according to this embodiment will be described, but the present invention is not limited to this method of use. The automatic cardiopulmonary resuscitator 100 is fixed to the cloth stretcher 300 by attaching the back plate 30 to the back plate attachment portion 315 of the cloth stretcher 300 as shown in FIG. 9, for example. Then, the patient is placed on the backboard 30 attached to the cloth stretcher 300 . Next, the arch portion 10 and the vertical rods 20 are attached to the back plate 30 . At this time, it is preferable to irradiate the patient with a laser beam using a laser irradiation mechanism to confirm an appropriate chest compression position. Then, the arch portion 10 is pushed down toward the patient's chest, and a predetermined surface (for example, the bottom surface S) of the head pad 121b is brought into contact with the patient's chest surface (chest compression position). This state is defined as the starting state of chest compression. In the starting state, a predetermined surface of the head pad 121b is preferably applied parallel to the patient's chest compression position. Compression fractures of the sternum can be better prevented. Chest compression by the automatic cardiopulmonary resuscitator 100 is performed by repeating the action of moving the impact mallet 120 downward from the starting state to compress the sternum, moving the impact mallet 120 upward and returning to the starting state. In the automatic cardiopulmonary resuscitator 100 according to this embodiment, even if the patient's posture changes during transportation on a cloth stretcher, for example, the gaps 71 and 72 prevent the head pad 121b from contacting the chest compression position of the patient in the starting state. state can be maintained. Therefore, the head pad 122b of the impact mallet 120 can be appropriately pressed against the patient's chest, and the force of compression by the impact mallet 120 can be efficiently transmitted to the patient.

In addition, as shown in FIG. 10, in the stretcher 300, the leg placing portion 314 is folded back in accordance with the height of the patient to form a bag portion 351. , for example, when a posture such as a V-shape is assumed, there is an effect of preventing the patient's body from shifting downward. In addition to the action of the gaps 71 and 72 for adjusting the angle of the head pad 121b in the automatic cardiopulmonary resuscitator 100 according to this embodiment, the synergistic effect of the action of the bag portion 351 in the stretcher 300 allows the head pad 122b of the impact hammer 120 to be adjusted. A better compression can be achieved against the patient's chest, and the force of compression by the impact mallet 120 can be more efficiently transmitted to the patient.

10 Arch part 11 Top surface part 12 Left and right side parts 13 Fixed part 20 Vertical rod 21 Scale 30 Back plate 41 Hollow part 42 Laser irradiation part 43 Center rod part 44 Pad receiving part 45 Spherical part 46 Base end part 47 Fixing protrusion 48 Cutting Notch portion 51 Upper opening portion 52 Fitting portion 53 Lower opening portion 54 Flat portion 55 Annular members 71, 72 Gap 81, 82 Initial position confirming means 100 Automatic cardiopulmonary resuscitator 101 Housing 110 Artificial respiration means 111 Hose 112 Hose insertion Mouth 120 Chest compression means 121 Impact mallet 121a Rod 121b Head pad 122 Elevating mechanism 123 Cylinder 300 Stretcher 301, 302 Base end 310 Seat 311 Head placing portion 311a Pillow 312 Chest placing portion 313 Abdomen placing portion 314 Leg placing plan portion 314a Tip end portion of leg placing plan portion 315 Back plate mounting plan portions 321 to 324 Handle 330 Shoulder fixing belt 331 Armpit side belt piece 332 Shoulder side belt piece 333 Connecting means 341 Belt loop portion 342 Abdomen fixing belt 343 Knee fixing belt 344 Ankle fixing belt 350 Fixing means 351 Bag part 360 Storage bag O Extended line S of central axis of hollow part Bottom surface of head pad

Claims (7)

An automatic cardiopulmonary resuscitation device for applying chest compressions to a patient, comprising an impact mallet having a rod and a head pad provided at the tip of the rod, and an elevating mechanism for vertically reciprocating the impact mallet,
The head pad has an upper opening and a fitting part that communicates with the upper opening and is fitted to the tip of the rod,
A gap for adjusting the angle of the head pad is provided between the inner peripheral surface of the upper opening and the rod ,
the rod has a notch extending in a direction intersecting the height direction of the patient at a position corresponding to the gap;
An automatic cardiopulmonary resuscitator according to claim 1, characterized in that the allowable range of angular adjustment of the head pad is larger in the patient's height direction than in the patient's lateral direction due to the notch . 2. The automatic cardiopulmonary resuscitator according to claim 1, wherein said gap is configured to maintain a state in which a predetermined surface of said head pad is applied to said patient's chest compression position. 3. The automatic cardiopulmonary resuscitator according to claim 1, wherein the surface of the tip of said rod is rough. The head pad further has a lower opening communicating with the fitting,
The automatic cardiopulmonary resuscitator includes a laser irradiation mechanism that irradiates laser light from the lower opening toward the patient,
4. The impact mallet according to any one of claims 1 to 3 , wherein the impact mallet is provided with initial position confirmation means for confirming that the head pad is in a position that does not interfere with the irradiation of the laser beam when the laser beam is irradiated. An automatic cardiopulmonary resuscitator according to any one of the preceding claims. The head pad further has a lower opening communicating with the fitting,
The automatic cardiopulmonary resuscitator includes a laser irradiation mechanism that irradiates laser light from the lower opening toward the patient,
4. The automatic cardiopulmonary resuscitator according to any one of claims 1 to 3 , wherein a maximum tilt angle for angle adjustment of said head pad is set to an angle at which irradiation of said laser light is not hindered. The automatic cardiopulmonary resuscitator according to any one of claims 1 to 5 , wherein the head pad has a flat portion in a portion that contacts the patient. The automatic cardiopulmonary resuscitator comprises artificial respiration means and chest compression means having the impact mallet and the lifting mechanism,
An automatic cardiopulmonary resuscitator according to any one of claims 1 to 6 , wherein said artificial respiration means and said chest compression means are constructed as an integrated device.

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