JP2001095915A - Simple apparatus for alarming in intravenous drip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve weighing accuracy of a spring used in a simple apparatus for alarming in intravenous drip which informs an alarm when remaining amount of an intravenous dripping liquid gets less, to facilitate cognition of accurate timing when the intravenous drip is finished and to make the instrument itself compact for a portable use. SOLUTION: A projected part 11 is provided on the top part of a lower part hook 4 pulled downward by weight of an intravenous dripping liquid 24. When the lower part hook 4 of the projected part 11 is pulled downward by the weight of the intravenous dripping liquid 24, a stopper 11 is supported by means of a projected part 11a provided on the lower part of a case 1. At the last moment when the intravenous drip is finished, the projected part 11a is energized upward above the stopper by means of a sheer-like ring spring 2 being an elastic member to make an alarm switch 7 ON to actuate a buzzer 8 being an alarm and a light 10 and in addition, an alarm part is stored inside of the sheet-like ring spring along the case 1 to make compact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple drip alarm device used in infusion therapy, and more particularly to a simple drip alarm device having a simple structure and improved weighing accuracy so that it can be notified that drip is about to end. It relates to an infusion device.

[0002]

2. Description of the Related Art Infusion therapy is often performed on patients who have suffered from various diseases or accidents. Infusion therapy is a treatment method in which a liquid such as a nutrient or blood is infused into a patient's vein or subcutaneously, and an infusion device is used. As shown in FIG. 16, the infusion device includes a container 23 for filling an infusion solution 24, an infusion solution needle 33 penetrating into the container 23, and a drip solution needle 38 from a tube 27 connecting an injection needle pierced by a patient. The container 23 is suspended from an arm 32 attached to an upper portion of a stand 31.

[0003]

With such an infusion device, an infusion solution 24 is injected into a vein or subcutaneously of a patient lying on a bed. The time from the start to the end of infusion of the infusion liquid 24 varies depending on not only the constitution and condition of the patient but also the type of the infusion liquid 24. Therefore, while using the infusion device, it is necessary for the nurse or attendant or the patient to frequently monitor the remaining amount of the infusion solution 24.
However, frequently monitoring the remaining amount of the drip solution 24 over a long period of time is not only physically and mentally painful, but also contributes to overwork, especially for nurses.

[0004]

2. Description of the Related Art Various devices have been proposed which issue an alarm when the amount of drip solution 24 in container 23 becomes low. The device simply checks the remaining amount of the drip solution 24 based on the transmission and reflection of light, conductivity, ultrasonic waves, capacitance, volume, weight, etc., and also uses a sensor or the like to detect the remaining drip solution 24. There are advanced ones that detect quantities.

[0005]

2. Prior Art Embodiment 2 For example, Japanese Patent Laid-Open No. 61-2474
No. 1 discloses an apparatus for detecting and warning weight which measures the weight. A weight detector 59 which hangs the container 23 detects the decrease in the drip liquid 24 as shown in FIG.
When the amount of decrease of the alarm reaches the set value, the alarm 30 notifies. Further, Japanese Patent Application Laid-Open No. Hei 2-182267 discloses a weight detecting means for detecting the weight of the container 23 and outputting a weight signal, an informing means for informing the drip start state, the drip end state, and the like, and further displaying an elapsed time from the drip start state. There is disclosed an infusion alarm apparatus that includes a display unit and transmits data on the display contents of the notification unit and the display unit to a central management device that is a host computer of a hospital.

[0006]

[Prior Art 3] Japanese Patent Application Laid-Open No. Hei 3-23168.
No. 0 includes a drip tube 3 provided by a light source that emits parallel light and an image sensor that receives the parallel light transmitted through the drip tube 35.
A drip tester that detects the dripping state of the drip liquid 24 in 5 is disclosed. Further, JP-A-6-123987
A drip liquid 24 level detecting needle for detecting the remaining amount of the drip liquid 24 is pierced into the container 23, and an alarm signal generating means generates an alarm signal based on a detection signal derived from the drip 24 level detecting needle. Is disclosed. Japanese Unexamined Patent Publication No. 7-289635 discloses a nurse station in which a signal indicating the end of infusion is given when the drip liquid 24 flows between a pair of electrodes and the level of the drip liquid 24 becomes lower than the electrodes. A drip alarm device that notifies the user is notified.

[0007]

A simple device for detecting the remaining amount of the drip liquid 24 by measuring the weight of the container 23 is generally a drip in the container 23 using a scale using a spring. The amount of decrease in the liquid 24 is detected. Therefore, the spring used in the balance has a large elastic coefficient so that the elastic limit is not exceeded even when the drip solution 24 is stored in the container 23 to the maximum. However, the alarm is issued when the weight of the drip solution is reduced from the state in which the drip solution is maximally stored in the container 23 to 1/50 to 1/25. Therefore, it is difficult to accurately measure the weight of the lightened drip solution 24 with a balance using a spring having a large elastic coefficient, and the measurement accuracy is poor such that variation easily occurs.

Further, since the drip solution 24 in the container 23 is dripped for a long time, the spring used for the scale is continuously pulled for a long time. Therefore, the elastic force of the spring is deteriorated, and the weighing accuracy is reduced. Further, since the scale for suspending the container 23 must be positioned above the container 23, the size of the stand for suspending the container 23 also increases.

On the other hand, an apparatus provided with a sensor or the like has a drip solution 2
4 can be detected with high accuracy. However, the device becomes complicated and the device cost increases. In addition, when connecting to a host computer or the like, specialized knowledge is required, so that an attendant or patient's confidence cannot be easily used in a hospital room. SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple drip alarm apparatus which has a simple structure and which can improve the weighing accuracy and can notify that drip is about to end.

A simple infusion alarm having a simple structure and high weighing accuracy is not always installed in hospitals except for large hospitals and intensive care units. For example, infusions are performed in clinics, health centers, private hospitals, etc., but none of them have an infusion alarm device. It is an object of the present invention to provide a simple drip alarm device which is small, lightweight, inexpensive, can be stored in a handbag or a pocket, and has the same performance as that of a large one, and can be carried at the time of personal treatment at a hospital.

[0011]

In order to solve the above-mentioned problems, a first simple drip alarm apparatus has a lower hook for lifting and lowering a container for storing a drip solution attached to a lower end, and a convex portion provided on an upper end. A stopper for supporting the lower hook and the convex portion lowered by the weight of the drip liquid just before the end of the drip, an elastic member for urging the lower hook upward just before the end of the drip, and an alarm switch turned on by the raised lower hook. An alarm is connected to the alarm switch, and when the alarm switch is turned on, an alarm is provided to notify that the drip is about to end.

According to the first simple drip warning device,
The protrusion provided on the lower hook is transmitted to the stopper immediately before the end of the drip in which a large amount of drip solution is stored in the container, so that a spring having a small elastic coefficient can be used. A spring having a small elastic coefficient is excellent in weighing accuracy, and when the drip liquid becomes small and light immediately before the end of the drip, the convex portion is urged upward and the alarm switch can be turned on. This activates the alarm and informs the patient or nurse that the drip is about to end.

A second simple drip alarm apparatus for solving the above-mentioned problem is the first simple alarm apparatus, wherein a part of a lower hook that moves up and down forms a stopper. It is.

A third simple drip alarm device for solving the above-mentioned problem is the second simple drip alarm device, which is housed in a case and includes a plate-shaped ring spring abutting on the lower portion of the case and the upper hook. It is characterized by comprising an elastic member.

A fourth simple drip alarm device for solving the above-mentioned problem is the third simple alarm device, wherein the elastic member is constituted by a plate-shaped deformation spring which is housed in a case and abuts on the case. It is characterized by having done.

A fifth simple drip alarm device for solving the above-mentioned problems is the third and fourth simple alarm devices, wherein the adjustment is performed to adjust the state of the spring pressure plate of the plate-shaped ring spring and the plate-shaped deformed spring. The screw is provided outside the case.

A sixth simple drip alarm device for solving the above-mentioned problem is the fifth simple alarm device, wherein a plate-shaped ring spring and a plate-shaped deformed spring having different diameters, widths and spring forces are provided. It is characterized by being housed inside.

A seventh simple drip alarm apparatus for solving the above-mentioned problems is the sixth simple alarm apparatus, wherein a plate-shaped ring spring and a plate-shaped deformed spring having different diameters and widths and different spring forces are compressed. It is characterized in that two adjusting screws for adjusting the state are provided outside the case.

An eighth simple drip alarm apparatus for solving the above-mentioned problems is the simple alarm apparatus according to any one of the first to seventh aspects, wherein a magnet is attached to the plate-shaped ring spring and the plate-shaped deformed spring. It is characterized in that an alarm switch is configured by a Hall element that is installed and reacts to the magnet.

A ninth simple drip alarm apparatus for solving the above-mentioned problem is the simple alarm apparatus according to any one of the first to eighth aspects, wherein the alarm is notified to a nurse station by wire and wireless in a case. It is characterized by storing things to be done.

A tenth simple drip alarm apparatus for solving the above-mentioned problem is the simple alarm apparatus according to any one of the first to ninth aspects, wherein an upper hook of the case is integrated with the case. It is characterized by the following.

An eleventh simple drip alarm apparatus for solving the above-mentioned problem is the simple alarm apparatus according to any one of the first to tenth aspects, wherein an upper hook of the case is provided along an outer wall of the case. The present invention is characterized in that the ring-shaped hook is foldable and its support is linked to a switch.

A twelfth simple drip alarm device for solving the above-mentioned problem is the simple alarm device according to any one of the first to eleventh, wherein the device is light and small and can be carried in a handbag or a pocket. It is characterized by the following.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is directed to a drip alarm device, in which a plate-shaped ring spring and a plate-shaped deformed spring are mounted on a hanging lower hook portion of a drip solution container and moved up and down to support a lower hook lowered by the weight of the drip solution. Immediately after the end of the drip, the hook is urged upward to turn on the alarm switch and generate an alarm.

The basic structure of a simple drip alarm device using a plate-shaped ring spring and a plate-shaped deformed spring is also shown in FIGS.
This will be described with reference to FIG. FIG. 1 shows an outline of a simple infusion alarm apparatus superior to the present invention. FIG. 1 (a) is a cross-sectional view just before the end of infusion, and FIG. 1 (b) is a cross-sectional view until just before the end of infusion. It is shown. This simple drip alarm device is a plate that is an elastic member that is attached to the lower hook 4 that lifts and lowers a container 23 (see FIG. 16) that stores the drip liquid 24, lifts it to the upper part of the case 1, and urges it upward. A ring spring 2 is arranged. FIG. 2 shows a plate-shaped deformation spring (2
1a and 2b) are shown, and the elastic members are arranged by the support portions 17 and 17a, and the operation is the same as that of the plate ring of FIG.

A large amount of the drip solution 24 stored in the container 23 attempts to pull the lower hook 4 downward, so that the plate-shaped ring spring 2
The upper end of the lower hook 4, which is a stopper 11 that is supported when the lower hook 4 is slightly lowered, is in contact with the support portion 11a of the case 1 so that the lower hook 4 is not compressed so as to exceed the elastic limit. The plate-shaped ring spring 2 and the deformable springs (2a, 2b) have excellent weighing accuracy which can urge the lower hook 4 upward when the drip liquid 24 in the container 23 is small and light. Can be used.

As shown in FIG. 3, an upper hook 3 and an upper portion of a plate-shaped ring spring 2 are supported on the upper portion of the case 1, and adjustment screws 12, 12a are hinged to both ends thereof. Adjustment screw 1
2, 2a are joined to a plate-shaped ring spring, and the compressed state of the plate-shaped ring spring 2 can be adjusted by turning the adjusting screws 12, 12a installed in the case. That is, even if the elastic coefficient of the plate-shaped ring spring 2 changes with time, it can be adjusted by the adjusting screws 12 and 12a, and it is possible to cope with an increase or decrease in the weight of the drip container 23.

At the position where the lower hook 4 is raised, the container 2
The alarm switch 7 for notifying that the drip solution 24 of 3 has run low is arranged. The alarm switch 7 uses, for example, a micro switch, and the lower hook 4
Rises and contacts the alarm 7a of the switch 7, and the alarm switch 7 is connected.

The alarm switch 7 is connected to a power supply 5, a power switch 9, a buzzer (melody) 8 as an alarm, a blinking light 10, and a terminal 13 for transmitting an alarm to a nurse station. In FIG. 1, the switch 9 is provided so that a patient lying on the bed can easily operate, and the blinking light 10 is installed downward so as to be easy to see.

To the terminal 13 for transmitting an alarm to the nurse station, a cable obtained by branching a cable connected to an existing hand push button (nurse call) provided in a hospital room can be connected. In addition, it can be transmitted wirelessly to an infrared corner that does not cause radio interference.
FIG. 13 is a schematic diagram including a transmitter for wirelessly informing a nurse station of a simple drip alarm according to the present invention. In such a wireless type, the amplifier 6 is connected to the transmitter 28.
The receiver 28 and the transmitter 29 are connected to a portion where the cable connected to the hand push button switch is branched by the alarm device in the nurse station. By adopting the wireless system, the cable 25 is not routed around the patient, which leads to prevention of accidents such as the patient getting hooked on the cable 25. No problem.

An upper hook 3 is provided below the alarm device 39 shown in FIG. 16 so that the drip container 23 can be hung on the hook 32 of the stand 31. The upper hook 3 is shown in FIG. As shown, hook the case 1
It is also possible to integrate the upper hook 3 with a hook 3b shaped along the outside of the case 1 as shown in FIG. This is a simple drip alarm device which is of a foldable type (FIG. 6b) and is provided with a shaft portion 12, 12c of a hook 3c at the center of the case 1 as shown in FIG.

FIG. 8 shows a case where a main switch 15 is installed on the supporting portion of the case 1 of the foldable upper hook 3c and is linked with the upper hook 3c so that the power is turned on only when the simple drip alarm is used. There is no projection on the installation of the power switch, and this prevents the power switch from being forgotten to be turned off.

By mounting a magnet on the plate-shaped ring spring 2 and providing a Hall element 24 that follows the magnet (see FIG. 1), a change in the lower hook 4 that moves up and down is detected and an alarm switch 7 is formed. Thus, it is possible to adjust the increase / decrease of the weight of the drip container 23 and to cope with a drip liquid pack having a different drip liquid 24, for example, 100 ml to 2000 ml.

Plate-like ring spring 2 along the inside of case 1
A power supply 5, which is required as an alarm device, is provided therein.
An alarm switch 7, a main switch 9, a buzzer 8, an amplifier and the like can be provided, and the area in the case can be used effectively.

The simple drip alarm device is configured as described above, and the operation will be described next. The upper hook 3 of this simple drip alarm device is suspended from the arm 32 of the drip stand 31 and the lower hook 4 suspends the container 23 containing the drip solution 24. The power switch 9 preferably suspends the container 23 to drip the drip. It is turned on until the start or immediately after the start.
As shown in (b), the lower hook 4 is attached to the container 23 by the weight of the drip solution 24 and is pulled down. However, the convex portion 11 provided on the upper portion of the lower hook 4 corresponds to the convex portion 11 of the case which is a stopper. The load above the elastic limit is not applied to the plate-shaped ring spring 2 which is supported and has excellent weighing accuracy.

When the amount of the drip liquid 24 in the container 23 is reduced and the weight is reduced, the elastic force of the plate-shaped ring spring 2 and the plate-shaped deformed ring springs 2a and 2b is used.
The convex portion 11 supported on the lower hook 2 is urged upward.
4 rises. The projection of the lower hook 4 is shown in FIG.
As shown in (5), when the contact is made with the contact 7a of the alarm switch 7, the alarm switch 7 is turned on. Then, the buzzer 8 and the blinking light 10, which are alarms, are activated to notify that the drip is about to end even while the patient is sleeping. In addition, the activation of the alarm device allows the patient to reliably know that his or her infusion is about to end, regardless of the presence or absence of hearing impairment. Therefore, as shown in FIG. 13, the patient can notify the nurse at the nurse station that the drip is about to end by pressing the hand push button 22 connected to the cable 25.

However, since the terminal 13 is connected to the nurse station, a cable 25 is connected, as shown in FIGS. 14 and 15, or from the antenna 29 of the transmitter 28 of the radio to the antenna 29a of the receiver 28b.
The nurse station is informed that the drip is about to end without receiving and not informing the patient. Therefore, the nurse can end the infusion and replace the infusion liquid 24 with good timing.

Next, an example of a simple drip alarm apparatus using the plate-shaped ring spring 2 and the plate-shaped deformed ring springs 2a and 2b will be described with reference to FIGS. FIG. 17 is a cross-sectional view of a simple drip alarm device that operates a coil spring 2c different from that of FIG. 1 according to this description. As shown in FIG.
Upper hook 3 hung on arm 32 of drip stand 31
And a lower hook 4 that moves up and down. The alarm is activated by an elastic member that turns on an alarm switch depending on the weight of the drip solution 24. The elastic member needs to have a small wire diameter and a large length in order to improve the operation accuracy with the coil spring 2c. There is. In addition, since the structure for the stopper is provided, the case 1a itself becomes large, so that the drip alarm device is not suitable for carrying as in the present invention. FIGS. 11 to 15 are schematic structural views of components used in the simple drip alarm device shown in FIG. 1 according to the present invention. The simple drip alarm device shown in FIG. 4 is characterized in that a magnet 15 is formed or installed on the upper part of the lower hook 4 of the above-described basic drip alarm device and is constituted by a Hall element 16 to which the magnet 15 reacts. Things. As shown in FIG. 12, an amplifier 28c is connected to the Hall element 16, and a volume, a battery, and a terminal are connected to the amplifier 28c. The volume can be adjusted so that the alarm switch is turned on just before the end of the infusion. In addition, the change over time of the elastic coefficient of the plate-shaped ring spring 2 and the drip container 23
Of different containers. Therefore, by using the magnetic force 15 and the Hall element 16,
As described above, the simple drip alarm device can be simplified without the need for the elastic adjustment screw 12 by the plate-shaped ring spring 2. Regarding wireless communication, a simple drip alarm device using the magnet 15 and the Hall element 16 is the same as the above-described basic simple drip alarm device, and a description thereof will be omitted.

Next, another modification of the simple drip alarm device using the plate-shaped ring spring 2 will be described with reference to FIG.
Plate-shaped ring springs 2 and 2a different from FIG.
1 schematically shows a simple drip alarm device using two of them. FIG. 9 shows a cross-sectional view thereof. The plate-shaped ring spring 2a having a large elasticity and the plate-shaped ring spring 2 having a small elasticity are accommodated in the case doubly in the support portion of the upper hook 3. The adjusting screws 12, 12a provided on the upper part of the case 1 can adjust the elasticity of the respective plate-like ring springs 2, 2a.
This simple drip alarm device is different from the drip container 23, for example, when the load is small, the plate-shaped ring spring 2 is used.
Operates, and in the case of a large load, the plate-like ring springs 2 and 2
When a overlaps, the alarm switch 7 is activated to notify that the drip is about to end.

As described above, the power supply 5, the amplifier 6, the micro switch 7, the buzzer 8, and the main switch 9 are housed in the plate-shaped ring spring 2 of the case 1, and the blinking light 10, the terminal 13, the adjustment Screws 12, 12 a and an upper hook 3 for suspending an arm 32 of a drip stand 31 at the upper part of the case 1 and a lower hook 4 for suspending a drip container 23 which moves up and down are arranged at the lower part of the case 1. .

Next, FIG. 10 is a sectional view of a simple drip alarm device using a wireless communication. FIGS. 14 and 15 are schematic structural views of components used in the simple drip alarm device according to the present invention. FIG. 10 shows a case 1 in which the infrared sensor 29 is wirelessly used.
The microswitch 7 which is provided at the lower part of the device and is activated immediately before the end of the drip is connected to the amplifier 6, and the infrared sensor 29 of the receiver 28b receives from the infrared sensor 29 by the infrared sensor 29 of the transmitter 28 in FIG. Then, the patient is notified to the nurse station that the patient is about to finish the drip without operating the push button switch 22. In the case of the present invention, since infrared rays are used as radio waves, there is no radio interference to other medical equipment, and since there is no cable to a simple drip alarm device, it is easy even when going to a drip toilet or the like.

FIG. 5 is a sectional view of a simple drip alarm device in which the upper hook 3 of the simple drip alarm device of the present invention is integrated with the case 1. When stored in a handbag, a second bag, or a pocket, a smaller, lighter, and more beautiful one is a necessary condition particularly as a simple drip alarm device.

FIG. 6 is a sectional view of the simple drip alarm device of the present invention in which the upper hook 3 is of a folding type. A ring-shaped folding-type upper hook 3b along the outer periphery of the case 1 is used as a support for the central side surfaces 12, 12a of the case 1. When the upper block 3b is not used, the upper block 3b is folded as shown in FIG. When used for infusion, FIG. 6 (a) is used, which covers the lower hook 4 and is compact. Regarding the inside of case 1 in FIG.
The description is omitted because it is the same as FIG.

FIG. 7 is a cross-sectional view of a simple drip alarm device different from FIG. 6 in which the upper hook 3 of the simple drip alarm device of the present invention is of a folding type. A case where the upper hook 3c is provided as a ring-shaped folding type upper hook 3c along the circular shape of the case 1 and provided at the center of the circular shape of the case 1 and the upper hook 4 is not used as shown in FIG. Is a compact simple drip alarm device that covers the folding lower hook 4. The inside of case 1 of FIG. 7 is the same as that of FIG.

FIG. 8 is a cross-sectional view of a simplified drip alarm device different from FIG. 6 in which the upper hook 3c of the simplified drip alarm device of the present invention is of a folding type. The upper hook 3c is shown in FIG.
Same as above, but with a foldable top hook 3
A deformable cam is provided on the supporting portion 12a of FIG.
When the drip is not used, the power is turned off to save labor and prevent forgetting to turn off the power. The inside of the case 1 of FIG. 8 is the same as that of FIG.

[0045]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings (FIG. 1 (a)). A plate-like ring spring 2 is fixed inside a case 1 of a simple drip alarm device by an upper hook 3 and is supported by a lower hook 4 to move up and down. Move. The drip container 23 (FIG. 16) is hung on the lower hook 4, descends by its weight, comes into contact with the convex portion 11 of the case 1, and is supported as a stopper. The drip liquid 24 (FIG. 16) is reduced and the drip is finished immediately before the drip is completed. The alarm switch 7 is turned on by the elastic ring spring 2 (FIG. 1B), and the alarm device 14 is activated.

FIGS. 2 (a) and 2 (b) show that the plate-shaped ring spring 2 and the plate-shaped deformed springs 2a, 2b are
7, 17a are supported, and a lower hook is fixed to a central portion. The operation with respect to the change of the drip solution 24 (FIG. 16) is the same as that of the first embodiment, and a description thereof is omitted.

In the embodiment shown in FIG. 3, the spring pressure adjusting screws 12 and 12a of the plate-shaped ring spring 2 are provided on the upper side of the case 1 to adjust the spring pressure state of the plate-shaped ring spring 2 so that the drip liquid 2 is adjusted.
4 (FIG. 16) for changing the weight and elastic member over time and for fine adjustment of the alarm switch 7.

In the embodiment shown in FIG. 4, a plate-shaped ring spring 2 similar to that of the first embodiment is used, but a permanent magnet 15 is provided on the convex portion 11 of the lower hook 4, and a Hall element which reacts by this magnetic force. 16 is formed on the upper part. The Hall element 16 is connected to an amplifier 28c (FIG. 12) and is adjusted by a volume so as to issue an alarm immediately before the end of the infusion.

In the embodiment shown in FIG. 5, a simple drip alarm device having the same internal structure as that of the first embodiment is used.
Is integrated with the case 1 and the upper hook 3a is easy to miniaturize and assemble.

In the embodiment shown in FIGS. 6A and 6B,
The structure and operation are the same as those in the above-mentioned example, except that the upper hook 3 is a half-ring shape along the outer peripheral portion of the case 1 and is of a folding type, and the hook 3b is provided with fulcrums 12, 12a at both ends of the case. . Infusion stand 31 (Fig. 16)
(A) when it is hung up, the shape becomes (b) after the end of the infusion, and the lower hook 4 is covered.

In the embodiment shown in FIG.
The upper hook 3 is similar to that shown in FIG. 6, but is provided with hook fulcrums 12 and 12a at the center of the case 1 and is folded. FIG. 7A shows an infusion stand 31 (FIG. 16).
(B) covers the folded lower hook 4 after the drip is completed.

In the embodiment shown in FIG. 9, the plate-shaped ring springs 2 and 2a having different elastic forces are installed in the case 1 in a double manner. It applies the elasticity of a single spring.

In the embodiment shown in FIG. 10, an alarm is transmitted to a nurse wirelessly by an infrared lamp 29 and a transmitter 28 is transmitted.
a (FIG. 14) transmits a signal to the receiver (FIG. 15),
Notified to the nurse station.

In the embodiment shown in FIG. 11, the lower hook 22, the alarm switch 23, and the battery 21 are transmitted by a cable 25 as an outline of the internal connection of the simple drip alarm device, and an alarm is issued immediately before the drip of the light 6 and the buzzer 27 is completed. .

In the embodiment shown in FIG. 12, the Hall element 28 c corresponding to the permanent magnet 16 installed on the lower hook 4 (FIG. 4) and the battery 21 are transmitted by the cable 25, schematically showing the internal connection of the simple drip alarm device. Light 26
Then, the buzzer 27 operates.

In the embodiment shown in FIG. 13, the lower hook 22 is operated by the outline of the internal connection for notifying the nurse station of an alarm by wire, and the alarm switch 23 and the battery 21 are transmitted to the light 26 and the buzzer 27 by the cable 25. An alarm is signaled from a cable 25 by a light 26 and a buzzer 27 by an amplifier 28 in the nurse station.

In the embodiment shown in FIG. 14, a lower hook 22 is operated in the outline of a transmitter 28a for wirelessly informing a nurse station of an alarm, and an alarm switch 23 and a battery 21 are transmitted to a light 26 and a buzzer 27 by a cable 25. Infrared lamp 2 from transmission amplifier 28a
9

In the embodiment shown in FIG. 15, a transmitter 28b for notifying a nurse station of an alarm by radio is used to transmit a transmission antenna 29 (FIG. 14) to a receiver 28b.
Antenna 29a transmits by cable 25 to the receiving nurse station, and amplifier 28 and light 2
6 and the buzzer 27 are activated to transmit an alarm.

[0060]

According to this nail, while the drip liquid in the container is large and a large load is applied to the lower hook which is easily pulled, the convex portion provided on the upper portion of the lower hook is convex in the case. Since it is supported by the section stopper, an elastic member having a small elastic coefficient can be used. With this elastic member, the lower hook can be raised and the alarm switch can be turned on when the drip is about to end. In addition, by using the plate-shaped ring spring and the plate-shaped deformed spring as the elastic members, it is possible to provide a compact drip alarm device with a simple configuration.

Therefore, the timing of the end of the infusion is accurate, and it is possible to eliminate one cause of excessive working of the nurse. In addition, the patient or the attendant receiving the infusion can sleep with peace of mind without becoming nervous at the end of the infusion. Moreover, since the weighing accuracy can be improved with an extremely simple structure, it is possible to reduce the cost.Furthermore, by using the elastic members of the plate-shaped ring spring and the plate-shaped deformed spring, the size is reduced and the simple drip alarm device is provided. Become.

[Brief description of the drawings]

FIG. 1 is a simple infusion alarm device using a plate-shaped ring spring, wherein (a) is a cross-sectional view of the device immediately before the end of infusion (b)
Is a sectional view just before the end of infusion.

FIG. 2 is a longitudinal sectional view showing an embodiment of a plate-shaped deforming spring installation section.

FIG. 3 is a longitudinal sectional view of an embodiment in which an adjusting screw of a plate-shaped ring spring is provided.

FIG. 4 is a longitudinal sectional view of an embodiment in which a permanent magnet and a Hall element are configured in a plate-shaped ring spring.

FIG. 5 is a longitudinal sectional view of an embodiment in which an upper hook is integrated with a case.

FIG. 6 is a longitudinal sectional view of an embodiment in which an upper hook is foldable.

FIG. 7 is a longitudinal sectional view of an embodiment in which the upper hook is a folding type different from that of FIG. 6;

FIG. 8 is a longitudinal sectional view of an embodiment in which a power switch is provided on a folding upper hook portion.

FIG. 9 is a longitudinal sectional view of an embodiment in which a plate-shaped ring spring is a double type.

FIG. 10 is a longitudinal sectional view of an embodiment in which an alarm is wirelessly transmitted by infrared rays.

FIG. 11 is a schematic view of parts related to an alarm.

FIG. 12 is a schematic view of an embodiment in which a permanent magnet and a Hall element are provided.

FIG. 13 is a schematic diagram of an embodiment for transmitting a warning to a nurse station by wire.

FIG. 14 is a schematic diagram of an embodiment in which a warning is transmitted to a nurse station by a transmitter.

FIG. 15 is a schematic diagram of an embodiment of a receiver that notifies a nurse station of an alarm.

FIG. 16 is a schematic configuration diagram including a conventional drip alarm device.

FIG. 17 is a longitudinal sectional view using a coil spring different from the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Case 2 ... Plate-shaped ring spring 3 ... Upper hook 4 ... Lower hook 7 ... Alarm switch 8 ... Buzzer 10 ... Light 11 ... Stopper 12 ... Adjustment screw 14 ... Alarm device

Claims (11)

[Claims] 1. A lower hook (4) for suspending and suspending a container (23) storing a drip solution, and a convex portion (1) is provided on an upper portion.
1), a case stopper (11a) for supporting the lower hook (4) lowered by the weight of the drip liquid (24) until just before the end of the infusion, and the lower hook (4) just before the end of the infusion
The alarm switch (7), which is turned on by the elastic member (2) for urging the upper part and the raised lower hook (4), is connected to the alarm switch (7), and the alarm switch (7) is turned on, and the drip is about to end. A simple drip alarm device comprising an alarm device (14) for notifying the user. 2. The simple drip alarm device according to claim 1, wherein a stopper (11a) is formed by a part of the case (1) at a lower end of the lower hook (4) moving up and down. 3. A plate-shaped ring spring (2) which is housed in a case (1) and abuts on an upper part of a lower hook (4) which moves up and down.
3. The elastic member is constituted by:
A simple drip alarm device according to the above. 4. A plate-shaped ring spring (2) which is housed in a case (1) and abuts on an upper part of a lower hook (4) which moves up and down.
The simple drip alarm device according to claim 3, wherein the elastic member is constituted by a). 5. The simple drip alarm device according to claim 3, wherein adjusting screws (12, 12a) for adjusting the spring pressure state of the plate-shaped ring spring (2) are provided on the case (1). 6. A plate-shaped ring spring (2) is provided along the inner outer wall of the case (1), and an alarm (1) is provided inside thereof.
The simple drip alarm device according to claim 5, further comprising (4). 7. The simple drip alarm device according to claim 6, wherein the upper hook (3) and the case (1) are integrated. 8. The upper hook (3) is a folding type of a ring-shaped hook (3b) along the outer wall of the case (1), and its case supporting portions (12, 12a) and a power switch (1) are provided.
The simple drip alarm device according to claim 7, wherein 5) is linked. 9. The simple drip alarm device according to claim 7, wherein the plate-shaped ring springs (2) having different diameters, widths and spring forces are doubled in the case (1). 10. The simple drip alarm device according to claim 9, wherein a magnet is provided on the plate-shaped ring spring and an alarm switch is constituted by a Hall element which responds to the magnet. 11. The simple drip alarm according to claim 10, wherein the case (1) the hooks (3, 4), the alarm (14) and the like are reduced in size and weight so as to be always portable in a handbag, a second bag or a pocket. apparatus.