JP7253241B2 - automatic chest compression heart massager - Google Patents

Description

The present disclosure relates to an automatic chest compression heart massager.

Cloth stretchers are often used in emergency situations because they facilitate the transportation of patients on stairs and in narrow spaces. A cardiopulmonary arrest (CPA) patient may be lifesaving on a cloth stretcher using an automatic chest compression heart massager. The applicant has proposed a cloth stretcher with an automatic chest compression and heart massager that ensures that the patient's chest is positioned at the compression site of the automatic chest compression and heart massager (see, for example, US Pat. . Here, the automatic chest compression heart massager disclosed in Patent Document 1 includes an arch portion arranged to straddle the upper chest of a patient, a vertical rod supporting the arch portion, and an engagement for engaging the vertical rod. and a back plate, which is a plate that has a portion and supports the patient's lower chest. When the back plate is made of synthetic resin, X-ray imaging can be performed while the patient is placed on the cloth stretcher.

JP 2015-139595 A

It is further desired that the X-ray image taken is clear when X-rays are taken while the patient is placed on the cloth stretcher. In order to obtain a clear X-ray image, it is necessary to make the thickness of the back plate as thin as possible. Also, the area of the backboard that supports the patient's back should be smooth to provide comfort to the patient.

The present disclosure provides an automatic chest compression heart massager that has strength to receive the load from the patient's back, has a vertical rod that can be stably fixed, and has a back plate that enables clearer X-ray images to be obtained. intended to provide

In order to achieve the above object, as a result of intensive studies, it was found that the bottom of the back plate has a recess that is recessed leaving the edge of the bottom, and the engaging portions are on the left and right edges of the top surface of the back plate. The present inventors have found that the above problems can be solved by providing the above, and have completed the present invention.

An automatic chest compression and cardiac massager according to the present invention supports an arch portion arranged across the upper chest of a patient in the left-right direction and both sides of the arch portion so as to be movable in the vertical direction of the arch portion. a vertical rod, a plate-shaped back plate having an engaging portion for detachably engaging the vertical rod, an impact hammer rod protruding downward from the top surface of the arch portion, and fixed to the impact hammer rod. An automatic chest compression heart massager comprising: an impact mallet having an impact head pad mounted thereon; an elevating mechanism for reciprocating the impact mallet up and down; and a controller for controlling the elevating mechanism, wherein the back plate is synthetic The back plate is made of resin, and the bottom of the back plate has a recess that is recessed leaving the edge of the bottom, and the engaging portions are provided on both left and right edges of the top surface of the back plate , The back plate has no ribs in the region of the recess, and the minimum thickness of the top plate in the region of the recess is 90 to 100% of the maximum thickness of the top plate. The back plate has no ribs in the region of the recess, and the minimum thickness of the top plate in the region of the recess is 90 to 100% of the maximum thickness of the top plate. In the X-ray image obtained based on the line, the rib is not reflected, and there is no unevenness in definition of the X-ray image due to the thickness difference of the top plate. Therefore, the X-ray image can be made clearer.

In the automatic chest compression and heart massager according to the present invention, it is preferable that the edge portion of the bottom of the back plate has a reinforcing structure having at least one of ribs, grooves and bottomed holes. It is possible to reduce the weight of the back plate while maintaining the strength of the back plate.

In the automatic chest compression and cardiac massager according to the present invention, it is preferable that the entire circumference or a part of the side surface of the back plate is inclined so as to widen from the top surface to the bottom surface of the back plate. It is possible to reduce catching when inserting the backboard into the patient's back.

In the automatic chest compression heart massager according to the present invention, it is preferable that metal members are fixed along the extension direction of at least both upper and lower edges of the edge of the bottom of the back plate. In addition to preventing the metal member from appearing in an X-ray image obtained based on the X-rays transmitted through the recess, it is possible to prevent the back plate from bending toward the bottom side due to the weight of the patient.

In the automatic chest compression and heart massager according to the present invention, the side surfaces of the top surface of the back plate that are inclined from the left and right edges where the engaging portions are provided are provided with marks, respectively, and the top surface is viewed from the front. Preferably, both of said indicia are simultaneously visible when done. When inserting the backboard into the patient's back, it is possible to facilitate alignment for accurately applying the impact mallet to the optimal compression part of the patient's sternum. Especially easy to check the position even after inserting the vertical rod.

In the automatic chest compression heart massager according to the present invention, at least a pair of marks may be provided at positions facing the center of the top surface from the left and right edges of the top surface of the back plate where the engaging portions are provided. preferable. When inserting the backboard into the patient's back, it is possible to facilitate alignment for accurately applying the impact mallet to the optimal compression part of the patient's sternum. Especially easy to check the position even before inserting the vertical rod.

In the automatic chest compression heart massager according to the present invention, the back plate has a through hole connecting the top surface and the bottom surface of the recess, the through hole has an elongated opening, and When the top surface is viewed from the front, the longitudinal direction of the opening is along the extension direction of the upper edge or the lower edge of the top surface of the back plate, and the back plate extends from the upper side of the top surface and the lower edge of the top surface. A pair of elongated protrusions are provided along the inclination direction of the side surface on the side surface that is inclined from at least one edge of the lower side, and the pair of elongated protrusions extend in the longitudinal direction of the opening. It is preferable that they are provided at intervals equal to the length. By passing the back plate fixing belt through the through-hole and sandwiching the back plate fixing belt between the pair of elongated protrusions, it is possible to prevent the cloth stretcher and the back plate from being displaced while the patient is being transported. The automatic chest compression heart massager includes artificial respiration means, and chest compression means having the arch portion, the vertical rod, the back plate, the impact mallet, and the lifting mechanism, and the artificial respiration means and It is preferable that the chest compression means is configured as an integrated device. It is easy to carry around and can start cardiopulmonary resuscitation quickly in the early stage of critical care.

According to the present disclosure, automatic chest compression heart massage provided with a back plate that has strength to receive the load from the patient's back, that the vertical rod can be stably fixed, and that a clearer X-ray image can be obtained. equipment can be provided.

1 is a perspective view showing an example of an automatic chest compression heart massager according to this embodiment; FIG. It is a perspective view which shows an example of a back plate. FIG. 4 is a plan view showing an example of a back plate; It is a bottom view which shows an example of a back plate. It is a front view which shows an example of a back plate. It is a rear view which shows an example of a back plate. It is a left view which shows an example of a back plate. It is a right view which shows an example of a back plate. FIG. 3 is a cross-sectional view taken along line JJ of FIG. 2; FIG. 3 is a sectional view taken along the line II of FIG. 2; FIG. 3 is a partial cross-sectional view taken along line NN in a portion sandwiched between Ms in FIG. 2; FIG. 11 is a bottom view showing another example of the back plate; BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic which shows an example of a metal member, (a) is a top view which shows an example of a metal member, (b) is a rear view which shows an example of a metal member. It is a figure which shows the state which attached the backboard to the cloth stretcher. FIG. 4 is a schematic cross-sectional view showing an example of a portion where a back plate fixing belt is passed through the back plate; FIG. 4 is a schematic cross-sectional view showing an example of a portion where a shoulder fixing belt is passed through a back plate;

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the present disclosure is not limited to the embodiments shown below. These implementation examples are merely illustrative, and the present disclosure can be implemented in various modified and improved forms based on the knowledge of those skilled in the art. In addition, in this specification and the drawings, constituent elements having the same reference numerals are the same as each other. A quartet in the drawing is a line representing the surface of the component.

As shown in FIGS. 1 to 4, an automatic chest compression heart massager 100 according to the present embodiment includes an arch portion 10 arranged across the upper chest of a patient in the left-right direction, and both sides of the arch portion 10, respectively. a vertical rod 20 supporting the arch portion 10 so as to be movable in the vertical direction; a plate-like back plate 30 having an engaging portion 332 for detachably engaging the vertical rod 20; 11, an impact hammer 121 having an impact hammer rod 121a and an impact head pad 121b fixed to the impact hammer rod 121a, a lifting mechanism 122 for reciprocating the impact hammer 121 up and down, and the lifting mechanism 122 being controlled. In the automatic chest compression heart massager 100 having a controller (not shown) that 34d), and the engaging portions 332 are provided on the left and right edge portions 333 of the top surface 33 of the back plate 30. As shown in FIG.

First, referring to FIG. 1, the configuration of an automatic chest compression heart massager 100 will be described. The automatic chest compression heart massager 100 is provided with artificial respiration means (not shown) and chest compression means 120, and the artificial respiration means and chest compression means 120 are preferably configured as an integrated device. It is easy to carry around and can start cardiopulmonary resuscitation quickly in the early stage of critical care.

The artificial respiration means has a hose for blowing gas into the patient and a gas supply system for supplying gas to the hose. The gas is for example pure oxygen, oxygen-enriched air or air. One end of the hose is connected to, for example, a hose receptacle 112 provided in the housing 101 of the automatic chest compression heart massager 100 . The other end of the hose is connected to, for example, a mask worn on the patient or an endotracheal intubation tube.

The sternum compression means 120 includes an arch portion 10 , a vertical rod 20 , a back plate 30 , an impact mallet 121 and an elevating mechanism 122 .

(Arch part)
The arch portion 10 has a top portion 11 and left and right side portions 12, and is arranged across the patient's upper chest in the left and right direction. A portion of the arch portion 10 preferably forms a housing 101 . The housing 101 accommodates, for example, a gas supply system for artificial respiration, a drive system for the lifting mechanism 122, and a control unit.

(vertical rod)
A pair of vertical rods 20 are provided in the left-right direction of the arch portion, 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 left and right sides of the arch portion 10 so as to be movable in the vertical direction of the arch portion 10 . 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.

(Backboard)
The back plate 30 is a plate-like member that supports the patient's back. In this embodiment, the controls are all located on the arch 10 and the back plate 30 preferably has no controls. The X-ray image can be made clearer without the control unit being reflected in the X-ray image.

(Impact mallet)
The impact hammer 121 protrudes downward from the top surface portion 11 of the arch portion 10 and is supported by the top surface portion 11 so as to be vertically movable. The impact hammer 121 has an impact hammer rod 121a connected to the lifting mechanism 122 and an impact head pad 121b attached to the lower end of the impact hammer rod 121a and applied to the patient's chest.

In impact hammer rod 121a and impact head pad 121b, impact head pad 121b is positioned at the distal end of impact hammer rod 121a so that the pad surface always accurately captures the compression point of the patient's sternum. It is preferable to provide an angle adjustment function. The angle adjustment function is, for example, a ball joint type structure. In the ball joint type structure, for example, a spherical ball portion (not shown) provided at the tip of the impact hammer rod 121a is slidably and rotatably fitted into a housing portion (not illustrated) provided in the impact head pad 121b. It has an intricate structure. As a result, even if the impact head pad 121b hits the patient at an angle, for example, the impact head pad 121b can swing or rotate, so that the pad surface is always parallel to the patient's sternum. An impact head pad 121b can be applied. As a result, fracture of the sternum can be prevented.

(lifting mechanism)
The lifting mechanism 122 vertically reciprocates the impact hammer 121 with respect to the top surface 11 . The drive system of the lifting mechanism 122 is, for example, a gas drive system or an electric drive system. The lift mechanism 122 has a cylinder 123 when the driving method of the lift mechanism 122 is a gas drive 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 . When the driving system of the lifting mechanism 122 is an electric driving system, the impact mallet 121 reciprocates up and down by, for example, a motor drive. The electric drive system is, for example, an internal battery (internal battery), an external battery (external battery), an external power supply such as an AC100V power supply, or a combination thereof. The driving method of the lifting mechanism 122 may be a mixed driving method of a gas driving method and an electric driving method.

(control part)
The controller controls the lifting mechanism 122 . When the automatic chest compression heart massager 100 is equipped with artificial respiration means, the control section further controls the gas supply system of the artificial respiration means. The control unit is, for example, a printed circuit board.

Next, the back plate 30 will be described in more detail with reference to FIGS. 2 to 13. FIG.

The back plate 30 has a plate shape. Here, the plate-like shape means a shape having a front surface and a back surface having an elongated outline such as a rectangle, a rectangle with rounded corners, and an ellipse, and having a thickness between the front surface and the back surface. When the outlines of the front and back surfaces are projected horizontally, the ratio of the area surrounded by the horizontally projected outline of the front surface and the area surrounded by the horizontally projected outline of the back surface is 4:6 to 6:4. Preferably.

Regarding the external dimensions of the back plate 30, the length of the back plate 30 in the longitudinal direction (D3-D4 direction in FIG. 3) is about the same as the length of the arch portion 10 in the left-right direction, eg, 500 to 600 mm. Considering that the vertical rod 20 is stably fixed and that the patient's chest is located directly above the back plate 30, the length of the back plate 30 in the short direction (D1-D2 direction in FIG. 3) The height is, for example, 250-320 mm. The height of the back plate 30 shown in FIGS. 2 and 3 at the point C1 in the center of the top surface (the length in the direction of the back of the paper surface and the front of the paper surface in FIG. 3) is, for example, 24 to 33 mm.

The engaging portion 332 is a groove or hole for detachably engaging the vertical rod 20 . For example, a protrusion (not shown) provided at the lower end of the vertical rod 20 is fitted to the engaging portion 332 . By supporting the arch portion 10 with the vertical rod 20, the arch portion 10 is arranged across the patient's upper chest in the left-right direction. In terms of the external dimensions of the back plate 30, the height of the back plate 30 at the engaging portion 332 (the length from the back of the paper surface to the front of the paper surface in FIG. 3) is such that the bottom edge portion 34 has sufficient strength, for example 30 to 65 mm.

The back plate 30 is made of synthetic resin. Since X-rays can pass through, X-ray imaging can be performed while the patient is placed on the back plate 30 . Also, washing and cleaning can be facilitated. The back plate 30 is preferably a molded product integrally formed by injection molding, compression molding, blow molding, or the like. The top plate 32 and the bottom edge portion 34 (34a, 34b, 34c, 34d) can be integrated. The synthetic resin is preferably a hard synthetic resin. Examples of hard synthetic resins include thermoplastic resins such as polycarbonate resins and vinyl ester resins, and thermosetting resins such as epoxy resins and phenol resins. The rigid synthetic resin may be a fiber reinforced resin. The strength of the back plate 30 can be increased. Fiber reinforced resins include, for example, glass fiber reinforced polycarbonate resins, glass fiber reinforced vinyl ester resins, glass fiber reinforced epoxy resins, glass fiber reinforced phenolic resins, carbon fiber reinforced polycarbonate resins, carbon fiber reinforced phenolic resins, carbon fiber reinforced epoxy resins, or It is a carbon fiber reinforced vinyl ester resin. The glass fiber preferably does not contain elements such as Pb and Ba that easily absorb X-rays. When the back plate 30 is made of glass fiber reinforced polycarbonate resin, the content of glass fiber in the glass fiber reinforced polycarbonate resin is preferably 10 to 30% by mass in consideration of required strength.

The top surface 33 of the back plate 30 is the surface that comes into contact with the patient's back when the patient is placed on the back plate 30 . The top surface 33 of the back plate 30 is a region surrounded by edges 330 of the top surface, as shown in FIGS. That is, the top surface 33 has a patient back contact surface 336 , left and right edge portions 333 and an intermediate edge portion 338 of the top surface. The top surface 33 may have connecting portions 337 between the patient back contact surface 336 and the left and right side edge portions 333 of the top surface and between the patient back contact surface 336 and the intermediate edge portion 338 . In this embodiment, the edge portion 333 and the intermediate edge portion 338 are separated by a pair of elongated protrusions 312a, 312b; 312d, 312e, but may be integrated if they are not separated. The top surface 33 is preferably a smooth surface, and more preferably a smooth curved surface that is convex downward when the back plate is viewed from the front, as shown in FIG. With this smooth curved surface, displacement of the patient's back can be further suppressed. In the present embodiment, the term "smooth" refers to a surface with no unevenness, or a surface with unevenness to the extent that the patient does not feel pain when the patient touches the back plate 30 . The smooth surface may be a rough surface, but preferably a rough surface such as a textured surface having unevenness to the extent that the patient does not feel pain. The sticky feeling when the patient's back touches the top surface can be reduced, and further comfort can be given to the patient. Moreover, the top surface 33 of the back plate 30 is preferably an antibacterial product. The back plate 30 can be kept clean. The back plate 30 whose top surface 33 is an antibacterial product can be obtained, for example, by coating the top surface 33 of the back plate 30 with an antibacterial paint, or by molding a resin mixed with an antibacterial agent by kneading. be done.

As shown in FIG. 3, edge portions 333 on both left and right sides of the top surface 33 of the back plate 30 (D3 direction side and D4 direction side in FIG. It is a portion having a width toward the vicinity. Considering that the vertical rod 20 is stably fixed, this width is, for example, 28-45 mm. An engaging portion 332 is provided on the edge portion 333 . The size of the engaging portion 332 is such that the opening fits within the edge portion 333 and the depth fits within the height of the back plate 30 . When the top surface 33 is a smooth curved surface that is convex downward when viewed from the front of the back plate 30, the top surface 33 is curved while leaving the left and right edge portions 333, so that the plate thickness at the edge portions 333 is It remains secured and can maintain the depth of the groove or hole in the engagement portion 332 . Therefore, the vertical rod 20 can be stably fixed while further suppressing displacement of the patient's back.

As shown in FIG. 4, the bottom of the back plate 30 has a concave portion 35 which is recessed leaving the edge portions 34 (34a, 34b, 34c, 34d) of the bottom. The sharpness of the X-ray image obtained based on the X-rays transmitted through the edge 34 is lower than the sharpness of the X-ray image obtained based on the X-rays transmitted through the recess 35 . However, when the patient is seated on backboard 30, edge 34 is away from a vertical line through the center of the patient's chest. Therefore, the edge portion 34 does not affect the sharpness of the image of the internal organs of the chest in the X-ray image, and the amount of information that the doctor can obtain from the X-ray image is not reduced. In the present embodiment, the bottom edge portion 34 includes an upper bottom edge portion 34a, a bottom lower edge portion 34b, a bottom left edge portion 34c, and a bottom edge portion 34c on the outside of the portion AB. The edge portion 34 d on the right side is continuously connected through a connecting portion 381 in an annular shape. That is, the bottom of the back plate 30 has a bottom edge 34 and a recess 35 surrounded by the edge 34 .

The recessed portion 35 is a recessed portion surrounded by the edge portion 34 at the bottom of the back plate 30 . In order to reduce the thickness of the back plate 30, the comfort of the patient is provided by having a depression in the bottom instead of the top surface 33. - 特許庁The recess 35 is part AB at the bottom, see FIG. As shown in FIG. 9 , the concave portion 35 is provided below the top plate 32 sandwiched between the left and right edge portions 333 of the top surface 33 of the back plate 30 . The size of the concave portion 35 is preferably as large as possible as long as the strength of the entire back plate 30 and the strength of the engaging portion 332 can be secured. X-ray images can be sharpened over a wider area. The length of the recess 35 in the longitudinal direction (D3-D4 direction in FIG. 4) is, for example, 310-544 mm. The length of the recess 35 in the lateral direction (D1-D2 direction in FIG. 4) is, for example, 186-280 mm. The depth of the recess 35 (the length in the direction from the back of the paper to the front of the paper in FIG. 4) is, for example, 17 to 29 mm at the center point C2, and 23 to 61 mm at the boundary between the recess 35 and the bottom edge 34. .

The top plate 32 is a plate that separates the space above the top surface 33 and the space of the recess 35 on the bottom. The thickness of the top plate 32 in the region of the recess 35 is represented by T. As shown in FIG. The thickness T is, for example, 4-7 mm.

In the automatic chest compression heart massager 100 according to this embodiment, as shown in FIGS. 4, 9, and 10, the back plate 30 does not have ribs in the region of the recess 35, and the top of the region of the recess 35 has no ribs. The minimum thickness T _min of the plate 32 is preferably 90-100% of the maximum thickness T _max of the top plate 32 . More preferably 95 to 100%, still more preferably 98 to 100%. X-ray images can be made clearer. An X-ray image obtained by imaging the area of the concave portion 35 does not show any ribs, and the thickness T of the top plate 32 is uniform or substantially uniform, so that there is no unevenness in definition of the X-ray image due to the difference in thickness. Therefore, the X-ray image can be made clearer. If the minimum thickness _Tmin of the top plate 32 in the region of the recess 35 is 100% of the maximum thickness _Tmax of the top plate 32, the thickness T of the top plate 32 in the region of the recess 35 is completely uniform. It is preferable that the top surface 33 of the back plate 30 is a curved surface convex downward when viewed from the front, and the thickness T of the top plate 32 in the region of the recess 35 is completely uniform. At this time, the deepest depression of the recess 35 is the highest point 382 of the contact portion between the wall of the engaging portion 332 and the recess 35 as shown in FIG.

The bottom edge portion 34 has a width of, for example, 20 to 45 mm from the bottom edge 340 to the inner vicinity of the edge 340 . Therefore, the back plate 30 has an annular reinforcing structure 38 over the entire contour of the back plate 30 . The bottom edge 34 and the exposed surface of the recess 35 are the bottom surface of the back plate 30 . The bottom surface of the back plate 30 is located on the opposite side of the top surface 33 with the thick portion of the back plate 30 interposed therebetween. When the back plate 30 is placed with the top surface 33 facing up on a flat surface such as a flattened cloth litter, floor or the like, the bottom edge 34 contacts said flat surface. The portion of the bottom edge 34 that contacts the plane is preferably a flat surface. When a patient is placed on the backboard 30, rattling of the backboard 30 can be suppressed.

The annular reinforcing structure 38 completely circles along the contour of the back plate 30 . If there is chipping, it becomes impossible to suppress the bending of the back plate 30 when a load is applied to the back plate 30 . The annular reinforcing structure 38 is provided with edge portions 333 on both left and right sides of the top surface 33 and engaging portions 332 . The structure of the bottom edge portion 34 provided on the lower side of the annular reinforcing structure 38 (on the front side of the paper surface in FIG. 4) may be a solid structure, and at least one of ribs 341, grooves 342, and bottomed holes 343 may be used. It may also be a reinforcing structure having two.

In the automatic chest compression heart massager 100 according to this embodiment, as shown in FIGS. It is preferable to have a reinforcing structure having any one of them. By reducing the weight of the bottom edge portion 34 while increasing the strength of the bottom edge portion 34, the strength of the annular reinforcing structure 38 can be increased while the weight of the annular reinforcing structure 38 can be reduced. Therefore, the strength of the back plate 30 can be improved, and the weight of the back plate 30 can be reduced. As the form of the reinforcing structure, a reinforcing structure having a rib 341, a reinforcing structure having a groove 342, a reinforcing structure having a bottomed hole 343, a reinforcing structure having a rib 341 and a groove 342, and a groove 342 and a bottomed hole. There is a reinforcement structure, a reinforcement structure having bottomed holes 343 and ribs 341 , or a reinforcement structure having ribs 341 , grooves 342 and bottomed holes 343 .

The rib 341 is a wall-shaped member that reinforces the engaging portion 332 . Ribs 341 are provided on the left and right edges 34c and 34d of the bottom. When the vertical rod 20 is attached to the engaging portion 332 , the ribs 341 prevent the wall of the engaging portion 332 from widening while reducing the weight of the back plate 30 . It is preferable that the ribs 341 are joined with each other or joined together with the engaging portion 332 or the connecting portion 381 . The size of the rib 341 is appropriately set according to the size of the engaging portion 332 . From the viewpoint of reinforcing the engaging portion 332, as shown in FIG. 11, the rib 341 is preferably joined perpendicularly to the edge portion 333 of the top surface 33 on the side where the rib 341 is provided.

The groove 342 is a recess having a bottom (not shown) and an elongated opening 342a, as shown in FIG. Elongated shapes include, for example, rectangles or rectangles with rounded corners. Further, the groove 342 is formed by, for example, two long wall-shaped ribs 38a and 38b facing each other, a columnar rib 38c sandwiched between the long wall-shaped ribs 38a and 38b with an interval therebetween, or the long wall-shaped rib 38a. , 38b, columnar ribs 38c and the inner surface 345 of the bottom.

The long-wall ribs 38a, 38b and the columnar ribs 38c are integrated members, and are in contact with the top plate 32 to suppress the bending of the back plate 30. As shown in FIG. Therefore, the weight of the back plate 30 can be reduced while maintaining the strength of the back plate 30 .

The bottomed hole 343 is, as shown in FIGS. 4 and 10, a recess having a bottom 343b and a non-elongated opening 343a. Non-elongated shapes include, for example, fan shapes, triangular shapes, and triangular shapes with rounded corners. The bottomed hole 343 is formed by being surrounded by, for example, the long-walled rib 38b, the short-walled ribs 38d and 38e, and the inner side surface 345 of the bottom.

The short-walled ribs 38d, 38e support the long-walled ribs 38a, 38b and the columnar rib 38c. Therefore, the strength of the back plate 30 can be maintained, and lateral bending and twisting of the top plate 32 can be suppressed, and the weight of the back plate 30 can be reduced.

As shown in FIGS. 2 and 3, the side surface 31 of the back plate 30 is sandwiched between the edge 330 of the top surface 33 and the edge 340 of the bottom, and has the appearance of an annular band. As shown in FIG. 2, the side surface 31 of the back plate 30 includes a side surface 31a inclined from edge portions 333 on both left and right sides of the top surface 33 (the D3 direction side and the D4 direction side in FIG. 3), and the bottom side of the top surface 33. It includes a side surface 31b inclined from the edge 330b (D2 direction side in FIG. 3) and a side surface 31c inclined from the edge 330a above the top surface 33 (D1 direction side in FIG. 3). The side surface 31 of the back plate 30 is preferably a smooth surface, and more preferably a rough surface such as a textured surface having unevenness to the extent that the patient does not feel pain. It is possible to reduce the feeling of stickiness when inserting the backboard into the patient's back. Moreover, it is preferable that the side surface 31 of the back plate 30 is an antibacterial processed product. The back plate 30 can be kept clean. The back plate 30 whose side surface 31 is an antibacterial product can be obtained, for example, by coating the side surface 31 of the back plate 30 with an antibacterial paint, or by molding a resin mixed with an antibacterial agent by kneading.

In the automatic chest compression heart massager 100 according to this embodiment, as shown in FIGS. It is preferably slanted in a widening direction. It is possible to reduce catching when inserting the backboard into the patient's back. The inclination angle of the side surface 31 is preferably greater than 0° and 45° or less near the left and right edges 333 of the top surface 33, and preferably greater than 45° and 85° or less near the bottom edge 340. . The inclined surface of the side surface 31 preferably presents an upwardly convex curved surface. Further, it is preferable that reinforcing members such as short-wall ribs 38d and 38e surrounding the bottomed hole 343 are provided on the opposite side of the inclined surface of the side surface 31 across the thick portion. The strength of the back plate 30 can be increased. When the back plate 30 is a molded product that is integrated as a whole, the slope of the widened end can be used as a draft when the molded product is removed from the mold during manufacturing.

As shown in FIGS. 2, 3, 7 and 8, in the automatic chest compression heart massager 100 according to the present embodiment, both the right and left sides of the top surface 33 of the back plate 30 provided with the engaging portions 332 are It is preferable that each of the side surfaces 31a inclined from the edge portion 333 has a mark 311, and both of the marks 311 are visible at the same time when the top surface 33 is viewed from the front. The form of the mark 311 is, for example, a protrusion, print, or label, and the protrusion is preferable from the viewpoint of visibility. The shape of the mark 311 includes, for example, an elongated shape such as a rectangle, a rectangle with rounded corners, a triangular shape, or an arrow shape, preferably the elongated shape. When inserting the back plate 30 into the patient's back, it is possible to facilitate alignment for accurately applying the impact mallet 121 to the optimal compression portion of the patient's sternum. In particular, it is easy to confirm the position even after inserting the vertical rod 20. - 特許庁

As shown in FIGS. 2, 3, and 10, in the automatic chest compression heart massager 100 according to the present embodiment, left and right edge portions 333 on which engaging portions 332 are provided on the top surface 33 of the back plate 30 are provided. It is preferable to have at least a pair of marks 334 at positions extending from the top surface toward the center of the top surface. The form of the indicia 334 includes, for example, protrusions, grooves, coatings, or labels. The shape of the mark 334 includes, for example, an elongated shape such as a rectangle, a rectangle with rounded corners, a triangular shape, or an arrow shape, preferably an elongated shape. When inserting the back plate 30 into the patient's back, it is possible to facilitate alignment for accurately applying the impact mallet 121 to the optimal compression portion of the patient's sternum. Especially, it is easy to confirm the position even before inserting the vertical rod 20. - 特許庁

In the automatic chest compression heart massager 100 according to this embodiment, as shown in FIGS. has an elongated opening, and when the top surface 33 is viewed from the front, the longitudinal direction of the opening is the extension direction of the upper edge 330a or the lower edge 330b of the top surface 33 of the back plate 30. (D3-D4). 312d, 312e along the inclination direction of 31c, and the pair of elongated projections 312a, 312b; It is preferable to open Q1 and Q2. The through-hole 335 is a hole for passing the back plate fixing belt 42, and the pair of elongated projections 312a, 312b; 312d, 312e are projections for sandwiching the back plate fixing belt 42 therebetween. The elongated shape of the opening is, for example, a rectangle with rounded corners. The length to width ratio of the elongated shape of the opening is preferably 2:7 to 1:8. To minimize the play of a back plate fixing belt. The pair of elongated projections 312a, 312b; 312d, 312e may extend toward the top surface 33 and further extend to the through hole 335 as long as the projections do not cause discomfort to the patient. may As the form of the pair of elongated projections, a pair of elongated projections 312a and 312b are provided on the side surface 31c inclined from the upper edge 330a of the top surface 33 along the inclination direction of the side surface 31c. The side surface 31b inclined from the lower edge 330b has a pair of elongated protrusions 312d and 312e along the inclination direction of the side surface 31b, and the side surface 31c inclined from the upper edge 330a of the top surface 33 A pair of elongated protrusions 312a and 312b are provided along the inclination direction of the top surface 33, and a pair of elongated protrusions 312a and 312b are provided along the inclination direction of the side surface 31b. There is a form having protrusions 312d and 312e.

12 is a bottom view of the back plate of an automatic chest compression and heart massager according to another embodiment than the automatic chest compression and heart massager with the back plate shown in FIG. 4. FIG. In the automatic chest compression heart massager 100 according to this embodiment, as shown in FIG. ) is fixed along the metal member 36 . The metal member 36 is a member that suppresses bending of the back plate 30 in the height direction of the back plate (D5-D6 direction in FIGS. 5 to 8) due to the weight of the patient. The metal member 36 preferably has a strip portion 362 which is stressed by the weight of the patient, as shown in FIG. Here, the strip portion 362 is attached to the edge portion 34 by being inserted into the strip portion insertion opening 344 in the edge portion 34 of the bottom. Therefore, the metal member 36 is not reflected in the X-ray image obtained based on the X-rays that have passed through the recess 35, and bending of the back plate 30 toward the bottom side due to the weight of the patient can be suppressed. The shape of the band plate portion 362 is appropriately set so as to match the shape of the band plate portion insertion port 344 and not protrude from the edge portion 34 when inserted. The outline 362b of one side edge extending in the longitudinal direction of the band plate portion 362 is preferably a straight line without steps. A rim contour 362 b may be located on the bottom rim surface 346 . Preferably, the metal member 36 further has a fastening portion 361 as shown in FIG. The fastening portion 361 has an engaging means such as a screw hole 363, for example. When the metal member 36 is in the form of a plate, the fastening portions 361 are preferably provided at both ends of the metal member 36 for ease of fastening. As shown in FIG. 13, when the normal line of the fastening portion 361 is inclined at an angle of 90° with respect to the normal line of the band plate portion 362, the belt plate portion 362 and the fastening portion 361 are aligned. Although it may be formed by annealing after twisting both ends of a plate, it is preferably formed by cutting a single square bar. By cutting a single square bar, a metal member with higher strength can be obtained. The fastening part 361 can be fixed, for example, by passing the screw 37 shown in FIG. The fasteners 361 may be fixed to the fixing means receivers on the bottom of the back plate 30 using adhesive instead of or in conjunction with the screws 37 .

The band plate portion insertion port 344 is a groove for inserting the band plate portion 362 . The depth direction of the band plate insertion port 344 is preferably the height direction of the back plate. The width direction of the band plate portion 362 coincides with the height direction of the back plate, and the bending of the back plate 30 due to the weight of the patient can be further suppressed. The strip plate insertion port 344 preferably has a size that leaves no gap when the strip plate 362 is inserted. The strip portion 362 can be tightly fixed. The bottom surface (not shown) of the strip insertion port 344 preferably extends along the edge 330 of the top surface 33 when viewed from the front side of the front view of FIG. 5 and the rear view of FIG. The contour 362a of the other longitudinally extending edge of the strip 362 conforms to the shape of the bottom surface of the strip insertion port 344, so that stress due to the patient's weight can be evenly received. For example, when the top surface 33 is a curved surface that is convex downward when viewed from the front of the back plate, and the strip plate insertion openings 344 are provided in the edge portions 34a and 34b on both the upper and lower sides of the bottom, the strip plate The bottom surface (not shown) of the external insertion port 344 extends along the upper edge 330a of the top surface 33 as shown in FIG. 6 or the lower edge 330b of the top surface 33 as shown in FIG. Moreover, as shown in FIG. 13(b), the form of the band plate portion 362 of the metal member 36 can be in the form of a plate having an arc-shaped contour 362a. Here, the outline 362a can evenly touch the bottom surface of the strip insertion port 344. As shown in FIG. Therefore, the contour 362a can evenly receive the stress due to the patient's weight on the upper edge 330a or the lower edge 330b of the top surface 33 . Strip insert 344 preferably has a curved portion 344 a along edge 34 . By bending the band plate portion 362 according to the band plate portion insertion port 344, strength against stress due to the weight of the patient can be improved.

As shown in FIG. 12, the metal member 36 is arranged along the extending direction (D3-D4) of the upper and lower edge portions 34a and 34b of the edge portion 34 at the bottom of the back plate 30. of the bottom edge portion 34 of the back plate 30, the extension direction (D3-D4) of the upper and lower edge portions 34a and 34b and the extension direction of the left edge portion 34c The form in which the metal member 36 is arranged along (D1-D2), the extension direction (D3-D4) of the upper and lower edge portions 34a and 34b, and the extension direction (D1-D2) of the right edge portion 34d , the extension direction (D3-D4) of the upper and lower edge portions 34a and 34b of the edge portion 34 at the bottom of the back plate 30, and the left and right edge portions There is a form in which the metal members 36 are arranged along the extension direction (D1-D2) of 34c and 34d.

The form of the band plate portion 362 of the metal member 36 may be in the form of an annular frame in which both ends of the band plate portion 362 are joined together when the bottom of the back plate 30 on which the metal member 36 is arranged is viewed from the front. . Only one metal member 36 allows placement along the direction of extension of the edges 34a, 34b, 34c, 34d on all sides of the bottom. Here, the strip insert 344 runs along the entire circumference of the bottom annular edge 34 . It is preferable that the fastening portion 361 does not enter the bottom recess 35 when it is fixed along the edge portion 34 in order to facilitate transmission of X-rays.

The boundary between the patient back contact surface 336 and the connecting portion 337, the boundary between the connecting portion 337 and the edge portion 333, the boundary between the connecting portion 337 and the intermediate edge portion 338, the boundary between the edge portion 333 and the side surface 31a, the edge portion 333 and The boundary with the side surface 31b, the boundary between the edge portion 333 and the side surface 31c, the boundary between the intermediate edge portion 338 and the side surface 31b, and the boundary between the intermediate edge portion 338 and the side surface 31c are shown in FIGS. , it forms an angle, but it may also form an R surface. A portion of these boundaries may form an angle and the rest may form an R surface.

An example of a form in which the automatic chest compression heart massager 100 according to the present embodiment is fixed to the cloth stretcher 40 will be described. As shown in FIG. 14 , the cloth stretcher with backboard 500 includes a cloth stretcher 40 and a backboard 30 . The cloth stretcher 40 includes a seat portion 41 , a back plate fixing belt 42 and shoulder fixing belts 43 . The seat portion 41 has a planned head placement portion 411, a planned chest placement portion 412, and a planned abdomen placement portion 413 according to the patient's planned placement position. The back plate fixing belt 42 includes a first back plate fixing belt piece 42a protruding from the surface of the planned chest placement portion 412 and a surface closer to the planned abdomen placement portion 413 than the first back plate fixing belt piece 42a. It has a protruding second back plate fixing belt piece 42b and back plate fixing belt connecting means 42c for connecting the first back plate fixing belt piece 42a and the second back plate fixing belt piece 42b. The shoulder fixing belt 43 includes a side belt piece 43a protruding from the surface of the chest placement portion 412 and a shoulder side belt piece 43b protruding from the surface closer to the head placement portion 411 than the side belt piece 43a. and a shoulder fixed belt connection means 43c for connecting the armpit side belt piece 43a and the shoulder side belt piece 43b. The back plate 30 is installed on the chest placing portion 412 .

When the cloth stretcher 40 is used, the seat portion 41 and the back plate 30 are likely to be misaligned, for example, when the patient is transported. It is a belt that is securely fixed to the portion 41 . One end of the first back plate fixing belt piece 42a passing between the pair of elongated projections 312d and 312e and one end of the second back plate fixing belt piece 42b passed through the through hole 335 They are connected via a plate fixing belt connecting means 42c. When connecting, the position of the back plate fixing belt connecting means 42c is not particularly limited. By sandwiching the second back plate fixing belt piece 42b between the pair of elongated protrusions 312, it is possible to prevent the seat portion 41 and the back plate 30 from slipping during transportation of the patient. The first back plate fixing belt piece 42a and the second back plate fixing belt piece 42b may be two independent belts with their other ends fixed to the seat portion 41, as shown in FIG. , a single belt fixed to the seat portion 41 via a joining member 45 such as stitching. The back plate fixing belt connecting means 42c is, for example, a hook-and-loop fastener.

The arch portion 10 and the vertical rod 20 are attached to the back plate 30, as shown in FIG. The arch portion 10 and the vertical rod 20 are attached by fixing the fixing portion 13 of the arch portion 10 to the vertical rod 20 in advance and attaching the arch portion 10 and the vertical rod 20 to the back plate 30. Alternatively, the arch portion 10 may be fixed to the vertical rod 20 after the vertical rod 20 is engaged with the back plate 30 .

As shown in FIG. 14, the shoulder fixing belt 43 is a belt that securely binds and fixes the base of the patient's arm to the seat part 41 . The shoulder fixing belts 43 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 longitudinal direction of the seat portion 41 . The armpit-side belt piece 43a protrudes from the surface of the seat portion 41 and is put around from the patient's armpit to the front shoulder. The shoulder-side belt piece 43b protrudes from the surface of the seat portion 41 and is wrapped around the patient's upper shoulder to front shoulder. The shoulder fixing belt connecting means 43c is, for example, a buckle such as a ratchet buckle or a cam buckle.

The armpit-side belt piece 43a and the shoulder-side belt piece 43b are preferably a single belt connected on the back side of the seat portion 41, as shown in FIG. At this time, the armpit belt piece 43a is a portion that protrudes from the surface of the seat portion 41 via the armpit belt piece through hole 46a formed in the seat portion 41, and the shoulder belt piece 43b is a portion that protrudes from the surface of the seat portion 41. This is a portion protruding from the surface of the seat portion 41 via the shoulder-side belt piece passage hole 46b formed in the . By forming the side belt piece 43a and the shoulder belt piece 43b into one belt, the patient can be firmly fixed by the cloth stretcher 40 regardless of the thickness of the patient's arm.

As shown in FIGS. 2 to 4 and 16, the back plate 30 further has a side belt piece through hole 331 on the top surface 33, and only the side belt piece 43a is inserted through the back plate 30, and is attached to the shoulder side. It is preferable not to let the belt piece 43b pass through the back plate 30 . When the shoulder fixing belt 43 is tightened, the shoulder belt piece insertion hole 46b as the base end of the shoulder belt piece 43b can be pulled toward the back plate 30, regardless of the thickness of the patient's arm. , the patient can be fixed firmly by the cloth stretcher 40 . The patient's chest can be placed more securely in the chest compression position of the massager (directly below the impact mallet 121), which is expected to speed up the process and improve the resuscitation rate. In addition, the length of the back plate 30 in the longitudinal direction of the cloth stretcher 40 can be made shorter, and the position of the back plate 30 can be more easily adjusted according to the chest compression position of the massager.

In X-ray imaging, the patient's chest is often X-rayed after the patient with the automatic chest compression heart massager 100 is removed from the cloth stretcher 40 . However, the seat portion 41, the first back plate fixing belt piece 42a, the second back plate fixing belt piece 42b, and the side belt piece 43a are used to such an extent that the effect of reduction in definition does not become apparent in the obtained X-ray image. Allow X-rays to pass through. Therefore, the patient's chest can be X-rayed without removing the patient from the cloth stretcher 40 .

10 Arch part 11 Top surface part 12 Left and right side parts 13 Fixed part 20 Vertical rod 21 Scale 30 Back plate 31 Side surface 31a Side surface 31b inclined from the left and right edges of the top surface Side surface 31c inclined from the lower edge of the top surface Top Side surface 32 inclined from the upper edge of the surface Top plate 33 Top surface 34a Bottom upper edge 34b Bottom lower edge 34c Bottom left edge 34d Bottom right edge 35 Recess 36 Metal member 37 Screw 38 Annular reinforcing structure 38a, 38b Long-walled rib 38c Column-shaped rib 38d, 38e Short-walled rib 40 Cloth stretcher 41 Seat part 42 Back plate fixing belt 42a First back plate fixing belt piece 42b Second back plate fixing belt Piece 42c Back plate fixing belt connection means 43 Shoulder fixing belt 43a Side belt piece 43b Shoulder side belt piece 43c Shoulder fixing belt connection means 45 Joining member 46a Side belt piece through hole 46b formed in the seat portion In the seat portion Formed shoulder belt one-way hole 100 Automatic chest compression heart massager 101 Housing 112 Hose insertion port 120 Chest compression means 121 Impact hammer 121a Impact hammer rod 121b Impact head pad 122 Elevating mechanism 123 Cylinder 311 Side mark 312a , 312b, 312d, 312e Elongated protrusions 330 Top surface edge 330a Top surface upper edge 330b Top surface lower edge 331 Top surface side belt through hole 332 Engagement portion 333 Left and right sides of the top surface Edge portion 334 Top surface mark 335 Through hole 336 Patient back contact surface 337 Communication portion 338 Intermediate edge portion 340 Bottom edge 341 Rib 342 Groove 342a Elongated opening 343 of groove 343 Bottomed hole 343a Non-elongated shape of bottomed hole Opening 343b Bottom of bottomed hole 344 Band plate insertion port 344a Curved portion 345 of band plate insertion port Inner surface 346 Bottom edge surface 361 Fastening portion 362 Band plate portion 362a Edge outline 362b Edge edge Contour 363 Screw hole 381 Connecting portion 382 Uppermost portion 411 of contact portion between wall of engaging portion and concave portion Planned head placement portion 412 Planned chest placement portion 413 Planned abdomen placement portion 500 Cloth stretcher with backboard

Claims (8)

an arch portion arranged across the upper chest of the patient in the left-right direction;
a vertical rod supporting both sides of the arch portion so as to be movable in the vertical direction of the arch portion;
a back plate having a plate shape and having an engaging portion for detachably engaging the vertical rod;
an impact hammer having an impact hammer rod and an impact head pad fixed to the impact hammer rod projecting downward from the top surface of the arch;
a lifting mechanism for reciprocating the impact hammer up and down;
A control unit that controls the lifting mechanism, and an automatic chest compression heart massager comprising:
The back plate is made of synthetic resin,
The bottom of the back plate has a recess that is recessed leaving the edge of the bottom,
The engaging portions are provided on both left and right edges of the top surface of the back plate,
The automatic sternum, wherein the back plate has no ribs in the region of the recess, and the minimum thickness of the top plate in the region of the recess is 90 to 100% of the maximum thickness of the top plate. Compression heart massager. 2. The automatic chest compression heart massager according to claim 1 , wherein the edge of the bottom of said back plate has a reinforcing structure having at least one of ribs, grooves and bottomed holes. 3. The automatic chest compression heart massager according to claim 1 or 2, wherein the entire circumference or part of the side surface of the back plate is inclined toward the bottom from the top surface of the back plate. The automatic type according to any one of claims 1 to 3 , wherein a metal member is fixed along at least the extending direction of the upper and lower edges of the edge of the bottom of the back plate. Chest compression heart massager. Marks are provided on the side surfaces of the top surface of the back plate that are inclined from the left and right edge portions where the engaging portions are provided, and both of the marks are visible at the same time when the top surface is viewed from the front. The automatic chest compression heart massager according to any one of claims 1 to 4 , characterized in that: 6. The top surface of the back plate has at least a pair of marks at positions facing the center of the top surface from the left and right edge portions where the engaging portions are provided on the top surface of the back plate. The automatic chest compression heart massager described in . The back plate has a through hole connecting the top surface and the bottom surface of the recess,
The through-hole has an elongated opening, and the longitudinal direction of the opening extends from the upper edge or the lower edge of the top surface of the back plate when the top surface is viewed from the front. along the direction of
The back plate has a pair of elongated projections along the direction of inclination of the side surface on the side surface that is inclined from at least one of the upper and lower sides of the top surface,
The automatic chest compression cardiac massager according to any one of claims 1 to 6 , wherein the pair of elongated protrusions are provided with the same interval as the length of the opening in the longitudinal direction. vessel. The automatic chest compression heart massager includes artificial respiration means, and chest compression means having the arch portion, the vertical rod, the back plate, the impact mallet, and the lifting mechanism,
The automatic chest compression heart massager according to any one of claims 1 to 7 , wherein said artificial respiration means and said chest compression means are configured as an integrated device.

Images