JPS6033509B2 - heart stimulator - Google Patents

Abstract

An apparatus for mechanical stimulating of the heart comprising a girdle provided to be stretched over the chest of a human body and carrying power means arranged to mechanically treat said chest in a rhythmical sequence thereby stimulating the heart whereby according to the invention the bloodstream from the heart is directed towards the brain by means of a further girdle provided to be stretched over the body in the level of the abdomen and provided with means arranged to be extended and to exert a thrust against the abdomen intended to cause a compression of aorta abdominalis.

Description

[Detailed Description of the Invention] The present invention relates to a device that mechanically stimulates the heart from the outside, in which a band member wrapped around the chest of a human body is fixed to a bed-shaped base, and the chest is compressed and released by reciprocating motion. A heart stimulation mechanism is provided on the band member to stimulate the human heart from the outside.

A known device for externally mechanically stimulating the heart is shown in U.S. Pat. No. 3,307,541 and comprises a band member adapted to fix the body at the heart, the band member being connected to a compressed fluid tank. The known device is designed to treat the heart by rhythmically massaging the chest using a hydraulic piston mechanism, which directs blood flow toward the lower part of the patient's body, ie, the abdomen or chest. Because it is distributed, it is not effective in producing cardiac action to save lives, and its effective range is very limited.

It is an object of the present invention to provide a device for mechanically stimulating the heart from the outside in a much more effective manner than previous devices, and to provide a device for mechanically stimulating the heart from the outside in a way that is much more effective than previous devices. It is designed to increase blood flow.

In order to achieve the above-mentioned object, the device according to the present invention includes a separate band member stretched over the body at the abdominal position to locally press the abdominal aorta of the human body and maintain the pressure. The band member is provided with a pressing mechanism that generates a pressing operation.

Next, the heart stimulation device according to the present invention will be described in detail with reference to the illustrated embodiment.

1 to 4, the device of the present invention is composed of a bed-shaped base 1, which is provided with through holes 2, 3, and in which band members 4, 5 are provided. are expanded respectively.

The band member 4 is equipped with a heart stimulation mechanism 6, and the piston village constituting the heart stimulation mechanism 6 is provided with a pressing plate 7 (FIG. 4) inside the band member 4. The band member 6 is a pressing mechanism 8
The pressing mechanism 8 includes an inflatable balloon 9 (FIG. 3) inside the band member 5. Through hole 2,
3 includes an actuating body 10, from which the locking members 15 of the band members 4 and 5 can be actuated. The actuating body 10 and the locking member 15 together form a lever at the closed end of the through hole, which lever is pivotable by a shaft 16. The spring 17 is provided to press the locking member 15 against the band members 4 and 5 inserted into the through holes 2 and 3. As a result, the locking section 15 locks the band member 4,
The band members 4 and 5 are locked in cooperation with the through holes formed in the respective holes. When the actuating body 10 is pressed, the lever pivots against the pressure of the spring IJ ring 17, thereby locking member 15
is pressed out of engagement with the band member. Band member 4
, 5 can be completely pulled out to the outside of the through hole, so that the band member can surround the human body on the base 1. The band member can be moved through the through hole not only in the direction of its extension, but also along the longitudinal direction of the base 1 in order to precisely adapt the position of the band member to different bodies. As shown in FIG. 5, the cardiac stimulation mechanism and the pressure mechanism are connected by a conduit 11 to a source of compressed air.

In FIG. 5, the source of compressed air is illustrated as a pressure tank 18 having a shutoff valve, a reduction valve and a pressure gauge. A branch line is led from the pressure tank 18 via a closing valve 19 and a line 11 to the heart stimulation mechanism 6 and the pressure mechanism 8 . The cardiac stimulation mechanism 6 is composed of a cylinder 21 having a piston 22 which receives pressure from a pressure spring 23, the piston 22 is provided with a piston shaft 24, and a piston village 24 is provided.
A pressure plate 7 is provided at the end of the plate 7, and the pressure plate 7 is capable of reciprocating movement.

To effect this reciprocation, the conduit leading to the cardiac stimulation mechanism 6 is equipped with an air pulse generator. It consists of a housing 25 with two air pulse generators and a main channel 26, by means of which the main groove 26 connects the organ stimulation mechanism 6 via a tube 11 to a pressure tank 18.

A branch groove 27 is also guided from the main body 26 through a regulating valve 29 and a cylinder 28 . The branch groove 27 is connected to the second regulating valve 3
01, it is possible to form an outlet for exhaust gas. A piston 31 is disposed within the cylinder 28 so as to be movable up and down, and receives the pressing force of a spring 32. The piston 31 is provided with a piston village 33, the piston punch 33 being designed as a closing valve in the main groove 26. The valve body of the piston punch 33 has a valve seat in the main groove 26, and the piston 31 forms a valve seat that approaches the inlet portion of the branch groove 27 provided with the scener 281. The base 1, which functions as a bed, has a curved upper surface, and the curved upper surface is shaped so that the body can be laid down on the bed 1, and when viewed from the front, it has a raised position. , which allows the head to bend backwards (see Figure 2).

To make it convenient to carry, the base 1 can be divided into two parts, which are connected by a hinge 12, so that when the base 1 is folded, there are two parts, as is clear from FIG. The parts are closely spaced to each other and are shaped to form a parallelepiped 13. A drawer box 14 is provided on one side of the half-disc part, into which a pressure tank 18 and the like can be inserted. In using the device according to the present invention, the base 1 is remounted on a flat surface without being folded, and the Teito materials 4, 5
to open.

Thereafter, the patient's body is placed on the base 1 in the position shown in FIG. When the band member is fixed along the body, the cardiac stimulation mechanism 6 of the band member 4 is placed in front of the heart, and the pressing mechanism 8 of the band member 5 is placed on the left side of the abdomen. The cardiac stimulation mechanism 6 and the pressure mechanism 8 are connected to a pressure tank 18 by a conduit 11.

After opening the main valve, the valve 19 is opened and the balloon 9 is filled with gas according to the pressure. The balloon 9 is inflated,
As shown in Figure 3, "When the abdominal wall is pressed inward and the balloon is in the correct position, the abdominal aorta is pressed against the vertebrae. This restricts blood flow downwards. When the heart is stimulated, the blood flow restricts the blood supply to the very sensitive brain.For initiation of the cardiac stimulation operation, the other valve 19 is opened. 33 is pressed by the spring 32 and is in the position shown in FIG. moves against the pressing force of the spring 23, so the pressing plate 7 presses the heart through the passage shown in FIG. run away.
When the pressure in the piston 31 reaches a certain standard, it overcomes the force of the spring 32 and the piston 31 moves to the leading position 26.
start moving towards. When the piston 31 rises from its valve seat, the entire surface of the piston 31 is subjected to the action of force gas. The piston 31 thereby moves to the second end position, in which position the valve body formed by the piston punch 33 of the piston 31 closes the main groove 26. The pressure gas between the valve body of the piston punch 33 and the piston 22 of the heart stimulation mechanism 6 passes through the two regulating valves 29 and 30 and gradually escapes to the outside. As a result, the pressing plate 7 returns to its inner end position due to the pressing force of the spring 23 against the spring 22. At the same time, the pressure in the cylinder 28 decreases, and after a certain period of time, the pressure of the piston punch 33 against the valve body, that is, the pressure of the spring 32, overcomes the reduced pressure in the cylinder 28, and the valve body of the piston punch 33 The surface of the valve body descending from the valve seat and subject to forces within the main body 26 is increased. As a result, piston tube 33 and piston 31 return to their initial positions shown in FIG. It is mechanically stimulated by a cyclical operating system. The number of times can be adjusted by adjusting valves 29 and 30. Due to the bed shape of the base 1, the patient's body is supported in a position where the heart can appropriately receive external massage, and in that position, the abdominal aorta is effectively compressed. ing.

Therefore, while stimulating the heart, it compresses the abdomen,
The blood flow path from the heart to the lower part of the body is closed, and the dish flow is directed towards the upper part of the body, allowing a large amount of blood to be quickly supplied to the brain, effectively treating even seriously injured patients. be able to. Although the device according to the invention performs the complex and effective functions described above, it is very simple to handle, convenient to use, and convenient to carry. The gist and embodiments of the present invention are listed below.

(1) The claim consists of two band members, one of which extends to the body's chest and has a cardiac stimulation mechanism, and the other which extends to the body at the level of the abdomen and has a pressing mechanism. '2} The device according to item 1 above, comprising a base formed on the body and a curved support surface so that the upper body of the body is in a protruding position.

(2) The device according to item 1 or 2, characterized in that it is composed of two halves so that the base formed on the body can be connected together to form a battle layer.

t4) Item 2 or 3 above, characterized in that when the curved support surfaces of each half of the base formed on the body are joined together, the two parts come into close contact with each other. Equipment described in Section.

'5} The device according to any one of the above items, characterized in that a through hole is formed in the base formed on the body, and a band member is inserted into the through hole.

[Brief explanation of the drawing]

Since the figure shows an embodiment of the heart stimulation device according to the present invention,
Fig. 1 is a perspective view, Fig. 2 is a side view, Fig. 3 is a longitudinal sectional front view taken along line mm in Fig. 2, and Fig. 4 is a W-W in Fig. 2.
5 is a schematic illustration of the pneumatic actuating mechanism of the present invention. 1... Base, 2, 3... Through holes, 4, 6...
...Band member, 6... SoD organ stimulation mechanism, 7... Pressing plate, 8... Pressing mechanism, 9... Balloon, 11...
Conduit, 18... Pressure tank, 19... Valve, 20
...Air pulse generator. F So G.7 FJG. 2 F? G-3 G-child line G

Claims (1)

[Claims] 1. A band-shaped body that extends over the chest and abdomen of the human body is attached to a base that supports the human body, and the band-shaped body is equipped with a heart stimulation mechanism that mechanically compresses and releases the chest area of the human body through reciprocating action. It is characterized by comprising an abdominal pressing mechanism that presses the abdomen through a pressing operation and maintains the pressed state, and that the cardiac stimulation mechanism and the abdominal pressing mechanism are each connected to a fluid pressure source so as to be driven by fluid. Heart stimulator.