JPH0327610Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an additional device for detecting respiration, and more specifically, an additional device for respiration detection that is added to an air bag, which is a sensor for respiration detection, to enhance its detection function. It is related to the device.

[Conventional technology]

Generally, electrocardiographs and sphygmomanometers are used to determine a patient's health status, but when respiratory problems are involved, it is necessary to know the status of the respiratory organs.

The state of this respiratory organ can be grasped by knowing the state of respiration, such as the respiratory rate and respiratory waveform.

By the way, when a living body breathes, the chest or abdomen moves, that is, the movement of the chest or abdomen can be said to indicate the state of respiration.

Therefore, if the movement of the chest or abdomen can be detected by some means, the state of the respiratory organs (lungs) can be known by detecting and recording the state of breathing.

This is extremely effective as a non-invasive patient monitoring method that does not require actual surgery to know the inside of the lung.

Traditionally, to monitor a patient's respiratory status,
Impedance methods, nasal thermistor methods, etc. are used.

The former impedance method uses impedance changes on the body surface that occur with breathing to determine the respiratory status, while the latter nasal thermistor method uses a small thermometer attached to the nasal cavity to measure the temperature of the air passing through the nose when breathing. It measures the temperature change caused by the air to determine the state of breathing.

However, with the former impedance method, it is difficult to accurately detect breathing after surgery that involves an incision in the chest, and with the latter nasal thermistor method, the thermistor is attached to the nose, making it unsightly and difficult to wear for long periods of time. Because it involves both pleasure and pain, a method using airbags has been devised.

This air bag method involves covering a sponge 1a with a sponge cover 1b made of vinyl chloride, as shown in Figure 8, and placing a collar piece around the sponge cover.
c is attached, and an air guide pipe 5 is also attached and connected to the air bag detector 7 side with a connector 6.

The sponge 1a of the air bag 1 is made of soft and elastic polyurethane in which a large number of open cells are formed.

This airbag 1 is placed on the abdomen H as shown in FIG. 9 and fixed from above with adhesive tape.
When you inhale, your abdomen H expands and presses the airbag 1, so the airbag 1 contracts.
The air inside is sent to the air bag detector 7 via the air guide pipe 5.

Next, when you exhale, the abdomen H contracts, and the air bag 1 is released from the pressed state, so it expands due to the restoring force of the sponge 1a, and sucks air from the air bag detector 7 through the air guide tube 5. .
In this way, the airbag 1 contracts and expands in response to the expansion and contraction of the abdomen H due to breathing, so that the breathing state can be detected using this contraction and expansion.

[The problem that the idea attempts to solve]

In general, when this airbag method is attached to the abdomen H, the expansion and contraction of the abdomen H changes greatly due to breathing, so the breathing state is well transmitted to the airbag 1, and the breathing state can be detected reliably.
However, there are many patients who have little abdominal movement during breathing and female patients who breathe through their chest. There was a problem with not being able to obtain detection results.

The present invention aims to solve such problems.

[Means to solve the problem]

In order to achieve the above object, the present invention provides the following additional device for detecting respiration.

In other words, the present invention includes a base case that holds an airbag for respiration detection, and a base case that is wrapped around the chest of a living body to bring the base case into contact with the chest, and covers the airbag on the base to detect changes in chest circumference due to breathing of the living body. a belt that converts the pressing force into a change in pressing force and transmits it to the air bag, the base case has a surface that contacts the chest is formed larger than the air bag, and the belt responds to changes in the chest circumference. This additional device for detecting respiration is characterized by comprising an elastic band that stretches and contracts, and a non-stretchable band that does not stretch or contract.

[Effect]

In the above configuration, the surface of the base case that comes into contact with the chest is larger than that of the airbag, which prevents the airbag from being buried between the ribs even in the case of thin patients.
Securely hold the air bag.

The belt is wrapped around the chest and the airbag is held between it and the chest.

When the person inhales, the chest circumference increases, and the air bag held between the belt and the chest receives pressing force, causing the air bag to contract and send air into the tube.

When you exhale, your chest circumference decreases and the pressure between the belts decreases, causing the airbag to expand with its restoring force.

The belt consists of an elastic strap and a non-stretch strap, and the stretch strap expands and contracts according to changes in chest circumference caused by breathing, and generates stress.

The non-elastic strap converts the change in chest circumference into air bag pressing force more effectively than the elastic strap.

〔Example〕

Regarding embodiments of the present invention, how the configuration of the present invention is actually embodied will be described below with reference to the drawings, together with its operation.

FIG. 1 is a perspective explanatory view of one embodiment of the present invention, and in the figure, 1 is an air bag;
is formed to be able to expand and contract, and when it expands, it sucks in air from the air guide tube 5, and when it contracts, it acts to exhale air.

This air bag 1 is held in a base case 2.

Further, this base case 2 is made of hard resin, and a belt 3 is attached to it, and the base case 2 is attached by wrapping the belt 3 around the chest M of the living body.

This belt 3 consists of an elastic strap 3a and a non-stretch strap 3b, each with one end attached to the base case 3.
At the same time, fasteners 4a and 4b are attached to the other ends so that they can be locked to each other.

The elastic strap 3a expands and contracts according to the expansion and contraction of the chest M, while the non-stretchable strap 3b transmits force without stretching.

Note that the elastic strap 3a is attached so as to be able to press the air bag 1 from above.

FIG. 2 shows the same embodiment attached to the chest of a living body. Since the base case 2 has a larger bottom surface than the airbag 1, when the chest M is wrapped around the belt 3, it will not fit into the intercostal recess of a thin patient. Airbag 1
It is possible to prevent the air bag from being buried, and it is possible to absorb the pressure of the air bag 1 by the belt 3, thereby stabilizing the air bag pressing function.

FIGS. 3 and 4 are explanatory diagrams of the operation of the same embodiment, of which FIG. 3 shows the state when breathing.

The belt 3 shown in the figure is tightened as the chest M inhales and expands, and presses the airbag 1 onto the base case 2 so as to sandwich it therebetween.

This pressure causes the sponge 1 inside the air bag 1 to
A sends the contained air to the air bag detector through an air guide pipe (not shown).

FIG. 4 is a diagram showing the operating state of the same embodiment when the person exhales, and as the chest M contracts, the belt 3 loosens and the force pressing against the airbag 1 becomes weaker.

When released from this pressing force, the sponge 1a within the airbag 1 returns to its original expanded shape due to the restoring force based on the elasticity of the sponge itself.

This restoration causes air to be sucked into the numerous bubbles that make up the sponge 1.

FIG. 5 is an explanatory diagram of a non-stretchable strap 3b constituting the belt 3 of the same embodiment, in which a strip-shaped non-stretchable resin film 3c is slidably inserted into a sheath-like cloth cover 3d.

Therefore, force can be transmitted to the airbag 1 and the base case 2 without causing unnecessary friction with the expanding and contracting skin surface of the chest M.

FIG. 6 is a diagram showing another embodiment of the present invention,
This embodiment differs from the previous embodiment in that an auxiliary plate 8 made of hard resin is interposed between the belt 3 and the air bag 1.

With this configuration, the advantage of this embodiment is that the pressing force received from the belt 3 can be concentrated on the air bag 1 on the base case 2, and the air bag 1 can be made to work efficiently.

FIG. 7 shows still another embodiment of the present invention, which differs from the above two embodiments in that a pressing means 9 consisting of a pressing plate 9a and a vertical arm 9b is provided.

That is, a protrusion 2a is provided at one end of the base case 2, and the pressing means 9 is rotatably attached to the support shaft 2b of the protrusion 2a, and the vertical arm 9b of the pressing means 9 is attached to the chest. The belt 3 is constructed so as to be stretched.

When the belt 3 pulls this vertical arm 9b,
The pressing means 9 generates a rotational force about the support shaft 2b, and the pressing plate 9a uses the rotational force as a pressing force to press the air bag 1 on the base 2.

Therefore, since the vertical arm 9b pulls the belt 3 in the perpendicular direction, the efficiency of the pulling force is good, and the effect of this embodiment is that the force can strongly press the air bag 1.

As described above with respect to the embodiments, the present invention holds the airbag 1 in the base case 2 whose contact surface to the chest M is larger than that of the airbag 1, and connects the elastic strap 3a and the non-stretch strap. A band 3 consisting of a string 3b is wound around the chest M to hold the air bag 1 on the base case,
Since the abutment surface is formed wide, the airbag 1 will not be buried between the ribs even in a thin patient, and therefore the movement of the chest due to breathing will be stabilized by being held by the belt 3, and the airbag 1 will be efficiently moved. can be conveyed to.

[Effect of idea]

According to the present invention, the base case has a larger contact surface to the chest than the airbag, which prevents the airbag from being buried between the ribs of the chest.
Even thin patients can be reliably supported with an airbutt.

Therefore, the pressing force of the belt can be reliably transmitted to the air bag, and the air bag can be operated effectively.

Since the belt is wrapped around the chest and covers the airbag on the base case, changes in the expansion and contraction of the belt due to breathing can be transmitted to the airbag.

Therefore, even small breaths can be easily and clearly detected from the movement of the entire chest.

Since the air bag is held between the base case and the belt, changes in the belt's expansion and contraction caused by breathing are efficiently transmitted to the air bag.

The belt consists of an elastic strap and a non-stretch strap, and the elastic strap stretches and contracts freely according to changes in chest circumference without causing pain to breathing movements. Since the non-stretchable strap can convert changes in chest circumference into changes in airbag pressing force, even small changes in breathing can be reliably detected.

Since the auxiliary plate made of hard resin is interposed between the belt and the airbag, the pressing force received from the belt can be concentrated on the airbag, and the airbag can be made to work efficiently.

Since the pressing means consisting of a pressing plate and a vertical arm is pivotally supported on the protrusion at one end of the base case, the pulling force of the belt can be efficiently transmitted to the vertical arm, and the pressing plate uses its rotational force to transfer the force. Since the energy is concentrated in the air bag, the air bag can be used even more efficiently.

[Brief explanation of drawings]

Fig. 1 is a perspective explanatory view of one embodiment of the present invention;
The figure shows the same embodiment attached to the chest of a living body.
4 and 4 are explanatory diagrams of the operation of the same embodiment, and FIG.
The figure is an explanatory diagram of the non-stretchable strap constituting the belt of the same embodiment, and FIG. 6 is a diagram showing another embodiment of the present invention.
FIG. 7 is a diagram showing still another embodiment of the present invention, and FIGS. 8, 9, and 10 are explanatory diagrams of conventional examples. 1... Air bag, 2... Base case, 3...
Belt, 3...Elastic strap, 3b...Non-elastic strap, M...Chest.

Claims (1)

[Claims for Utility Model Registration] (1) A base case that holds an airbag for respiration detection, and a base case that is wrapped around the chest of a living body to bring the base case into contact with the chest and cover the airbag on the base to detect the breathing of the living body. a belt that converts changes in chest girth due to changes in pressing force into changes in pressing force and transmits the same to the airbag; the base case has a surface in contact with the chest that is larger than the airbag; An additional device for detecting respiration, comprising an elastic band that expands and contracts in response to changes in chest circumference, and a non-stretchable band that does not stretch or contract. (2) The additional device for detecting respiration according to claim 1, characterized in that an auxiliary plate made of hard resin is interposed between the air bag and the belt. (3) The base case is provided with a protrusion at one end, and a pressing means comprising a pressing plate for pressing the air bag and a vertical arm that receives rotational force from a belt is pivotally supported on the protrusion. The additional device for respiration detection according to claim 1.