JPH0745800Y2 - Gauze sheet number measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a gauze sheet number measuring device capable of confirming the number of used gauze sheets (gauze sheets).

“Conventional Technology” Conventionally, when performing surgery, gauze (gauze) is applied to the affected area to stop bleeding. These gauze will eventually be taken out of the body, but in order not to leave the gauze in the body, the number of gauze prepared for use in advance is counted, and the gauze taken out of the body during surgery (used gauze) The total number of gauze sheets taken out of the body and the unused gauze sheets prepared for use and not used is the same as the counted gauze sheets prepared for use in advance. I am checking whether or not there is gauze left behind in the body.

Also, there is a problem if the amount of bleeding during surgery is too large, so by checking the number of used gauze and measuring the amount of blood sucked into this used gauze, that is, the blood volume attached to the gauze (blood volume), I try to know the quantity.

As a measuring device for gauze used to confirm the number of gauze and the amount of bleeding, one shown in FIG. 10 is known as an example. That is, when the container 3 is placed on the weighing platform 2 provided at the bottom of the cylinder 1 and a synthetic resin bag (hereinafter simply referred to as a bag) 3a is spread inside the container 3 for interior mounting, the bag 3a is not present. In the above, the gauze (used gauze) 10 directly enters the container 3 and the blood sucked into the gauze 10 adheres to the inner surface of the container 3, compensating for the defect that an accurate blood volume cannot be measured. 1, a hopper 4 is provided above the cover 1 via a cover 9, and is composed of the light projector 5 and the light receiver 6 so that light emitted from the light projector 5 can be received by the light receiver 6 at a lower end portion of the hopper 4. An optical sensor 7 is provided, an indicator 8 is attached to the upper part of the hopper 4, and a microcomputer (not shown) is connected to the weighing platform 2, the optical sensor 7, and the indicator 8 to configure a gauze measuring device. is doing.

Then, at the time of surgery, the number of unused gauze prepared to be used in advance is counted, and at the time of surgery, an attendant such as a nurse can put the used gauze 10 from the affected area by hand with surgical gloves. The used gauze 10 is picked up one by one and dropped into the hopper 4, and the used gauze 10 is detected by the optical sensor 7 provided at the lower end of the hopper 4, and the used gauze is detected by the counting means of the computer based on the output signal.
The weight of the used gauze placed in the bag 3a is output from the weight weighing platform 2 while counting the number of 10 pieces, and the bleeding weight and bleeding sucked into the used gauze by the computing means of the computer based on the output signal. The amount (volume) is calculated, and the number of used gauze, the weight of bleeding sucked into the used gauze and the amount of bleeding are displayed on the display based on the output signal of the calculating means and the output signal of the counting means. .

The calculation means subtracts the weight of the container 3, the bag 3a in the container 3 and the unused gauze containing no blood measured in advance before use from the weight detected by the weighing platform 2 to calculate the weight of blood attached to the gauze. Then, the blood weight is divided by the specific gravity of blood, 1.06, to calculate the blood volume (ml).

After confirming the number of used gauze and the amount of bleeding, the used gauze was put into a collection container and a predetermined treatment of this gauze was performed.

"Problems to be solved by the device" However, as shown in Fig. 11, the bag 3a in the container 3 is filled with the used gauze 10 and rises, and these used gauze 10 block the light rays emitted by the projector 5. Since the process continues, it may not be possible to measure the number of used gauze 10 loaded from the hopper 4.

In addition, the used gauze 10 thrown into the hopper 4 is caught on the inner surface of the hopper 4 and hangs down from the hopper 4, and the light emitted by the projector 5 is kept blocked. Therefore, the number of used gauze 10 thrown from the hopper 4 is measured. It may not be possible to do so.

Furthermore, when the used gauze 10 that has risen or the used gauze 10 that has hung down on the hopper 4 is pulled up and tried to be taken out, the interruption of the light beam emitted by the projector 5 is repeated and the number of sheets is measured in duplicate. In some cases, an error may occur in the number of used gauze 10 that is put in from the hopper 4 and measured.

The present invention solves the above problems of the conventional gauze measuring apparatus and provides a gauze number measuring apparatus capable of issuing an alarm when the used gauze number cannot be measured. With the goal.

"Means for Solving the Problem" The present invention has the following configuration in order to achieve the above object. That is, a weighing platform for detecting the weight of gauze, an object to be placed placed on the weighing platform, a cylindrical gauze loading section provided above the object to be loaded, and this gauze A passing object sensor provided in the lower part of the charging unit, a storage unit for storing the number of the gauze pieces via the passing object sensor, and the number of used gauze pieces are calculated based on the output signal of the passing object sensor. Computing means,
In a gauze type number measuring device comprising a display for digitally displaying the calculation result of the calculation means, the pass-through sensor is an upper sensor and a lower sensor which are provided vertically below the gauze charging section. And a time measuring means for measuring an elapsed time from the time when an object moving from the upper side to the lower side cuts off and passes the light beam emitted from the upper sensor to the time when it passes through the light beam emitted from the lower sensor. When the elapsed time measured by is less than a predetermined time, a first determination means that issues an input detection signal, a counting means that counts the number of outputs of the first determination means, and the elapsed time measured by the time measurement means is the predetermined time. The second that outputs a signal to give an alarm when the time is over
The configuration includes a determination unit and an alarm device that issues an alarm based on the output signal of the second determination unit.

[Operation] According to the above-mentioned configuration, when the used gauze thrown in from the gauze throwing-in unit blocks the light beam emitted by the upper sensor and passes from the upper side to the lower side, and the light emitted by the lower sensor passes and passes, the gauze The upper sensor is used to take out the gauze that is incapable of counting the number, such as gauze caught in the gauze input part, gauze that has risen from the input object, etc. The gauze is not counted even if it is pulled up above the emitted light, and the used gauze blocks the light emitted by the upper sensor and passes it from above to the lower, and cuts the light emitted by the lower sensor and passes it. If not, an alarm is issued and the number of used gauze pieces is not measured.

Also, after the used gauze thrown in from the gauze throw-in section blocks the light beam emitted by the upper sensor and passes from above to below, it shuts off the light beam emitted by the lower sensor and issues an alarm if a predetermined time has elapsed before passing. It does not count the number of used gauze.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. Reference numeral 11 in FIGS. 1 and 2 denotes a case, and used gauze (used gauze) 12 is openably and closably provided on the front surface (the right side in FIG. 1 and the front side of the paper surface in FIG. 2) of the case 11. A door 13 for taking out is attached. Further, a lid 14 is detachably provided on the upper part of the case 11, and a caster 15 is attached to the lower part of the case 11, so that the case 11 can be easily moved. A weighing platform 16 is fixedly provided on the bottom of the case 11. This weighing platform 16 is a weight detection sensor (load cell)
(Not shown), and is bus-connected to the CPU 19 via the A / D converter 18 shown in FIG.

As shown in the figure, the CPU 19, the ROM 20, the RAM 21, the display unit 22, and the operation unit 31 are bus-connected, and the upper sensor 28 and the lower sensor 29 are bus-connected via the A / D converters 38 and 39, respectively. . A control program is stored in the ROM 20. RAM
21 is used as a work area. The CPU 19 performs calculation and judgment (comparison). RAM21 functions as various registers. The indicator 22 is, as will be described later, the accumulated weight of bleeding attached to the used gauze 12 in a synthetic resin bag (hereinafter simply referred to as a bag) 23, the accumulated bleeding volume (volume) (unit: ml), the used gauze 12 Is displayed.

A guide member 24 is fixedly provided at a predetermined position on the upper surface of the weighing table 16, and on the weighing table 16, the guide member 24 is positioned inside the guide member 24 and positioned on these guide members 24 to form a box shape. An object to be loaded 25 is detachably mounted. The bag 23 is removably inserted into the object 25.

The bag 23 is normally folded, and is a commercially available synthetic resin bag made of polyethylene or polypropylene that has a rectangular parallelepiped shape with an upper part opened when unfolded, and is inserted into the object 25 to be inserted and is detachably inserted. The upper end thereof projects from the upper edge of the object 25 and is hooked on the upper edge. A zigzag string (not shown) is sewn on the upper end of the bag 23, and the opening of the bag 23 can be closed by pulling the string. When the bag 23 is unfolded, the caliber is about 250 mm square and the height is about 500 mm to 550 mm, and is a size capable of accommodating 150 pieces of gauze (size 300 × 300 mm) used for surgery. This is a size capable of accommodating the total number of gauze used for heart surgery, which is generally considered to cause the most blood loss.

On the other hand, in the upper part of the case 11, a gauze input section (hopper) 26
Is detachably attached. The hopper 26 has a cylindrical shape and has an upper opening 26 as shown in FIGS.
a is circular, and the lower opening 26b is elongated elliptical.

Further, a guide cylinder 27 having an inner diameter larger than the inner diameter of the thrown object 25 is provided between the upper edge of the thrown object 25 and the lower end of the hopper 26.

An upper sensor 28 is attached to the outside of the guide cylinder 27 in a horizontal straight line via an attachment member (not shown). Below the upper sensor 28, a lower sensor 29 is provided in the same manner as the upper sensor 28 with a predetermined distance therebetween. The upper sensor 28 and the lower sensor 29 are designed so that the light emitted from the light projector can be received by the light receiver. These upper sensors are provided on the outer wall of the guide cylinder 27.
A through hole (not shown) is formed so that a light beam can pass between the lower sensor 28 and the lower sensor 29.

It should be noted that even when the used gauze passes through and falls anywhere in the lower opening 26b of the hopper 26, the light beams emitted from the upper sensor 28 and the lower sensor 29 are blocked.

By installing these upper sensor 28 and lower sensor 29,
The upper sensor 28 and the lower sensor 29 are configured to process by a logic circuit or the like to block the light beams emitted from the upper sensor 28 and the lower sensor 29, respectively, and output a detection signal of a passing object passing from the upper side to the lower side. ing.

In addition, used gauze (passage) 12 is the upper sensor 28.
And does not pass both of the light rays emitted from the lower sensor 29,
If the light emitted from either the upper sensor 28 or the lower sensor is blocked, and if the light emitted from the upper sensor 28 is blocked and passed, then the light emitted from the lower sensor 29 is blocked and passed for a predetermined time. (0.5 in this example
If more than a second) has elapsed, it is processed by a logic circuit or the like and an alarm is issued. In addition, this alarm is light,
It is designed to be performed by a buzzer.

The display 22 is attached to the case 11 via a mounting member 30. As shown in FIG. 4, the display 22 shows the amount of bleeding that has been sucked into the used gauze, the amount of bleeding display 22a for the amount of gauze used, and this is indicated by a flashing light when counting the number of used gauze. A count display portion 22b, a used gauze number display portion 22c, a gauze weight display portion 22d, a reset button 22e, and a power switch 22f are provided to inform the user of this by lighting. The bag 23 has a diameter much larger than that of the opening 26b in the lower portion of the hopper 26.
Further, the apparatus of this embodiment is provided with a horizontal confirmation means (not shown) for the weighing platform 16 and a horizontal adjustment means (not shown) for horizontally positioning the weighing platform 16.

Next, the relationship between the gauze and the gauze sheet number measuring device in surgery will be described.

In this embodiment, the weighing platform is previously adjusted by the horizontal adjustment means
Make the top of 16 horizontal and check its condition.

In addition, the weight per piece of unused gauze prepared in advance for surgery, the weight of the thrown-in object 25, the bag 23, and the total number of unused gauze prepared for use in surgery are set on the operation unit 31. Input from and store in RAM21.

At the time of surgery, a surgeon witness such as a nurse takes out the used gauze (gauze into which blood is sucked) 12 one by one from the operative field with a hand wearing surgical gloves and drops it into the hopper 26.

Then, the used gauze 12 blocks the light beam emitted from the upper sensor 28, and the used gauze 12 further drops and blocks and passes the light beam emitted by the lower sensor 29.

Then, the upper sensor 28, the lower sensor 29 emits the detection signal of the used gauze 12, and the CPU 19 based on the output signal.
The display 22 displays the number of used gauze sheets via.

The used gauze 12 that has passed through the lower sensor 29 and is counted further falls and enters the bag 23, and is placed on the weighing table 16 through the bag 23.

Then, the load cell of the weighing platform 16 is placed on the loading target 25,
The output signal (voltage) according to the weight of the used gauze 12 etc. in the thrown-in object 25 is emitted, and the CPU 19 subtracts the stored before-use gauze weight from the weight of the used gauze 12 based on the output signal. The weight of bleeding (unit: g) attached to the used gauze 12 is measured, and this is divided by the specific gravity of blood of 1.06 to calculate and integrate the blood volume (unit: ml). Then, the integrated bleeding weight and bleeding volume (the bleeding volume sucked into the used gauze 12) are displayed on the display 22.

It should be noted that, when the inventor witnessed the actual surgery and took out the used gauze 12 one by one from the operative field and measured the time interval for putting the used gauze into the measuring device for the used gauze, the insertion interval was 2 It is more than a second and it has been found that doing this within 2 seconds is nearly impossible under normal usage conditions.

Further, in the present embodiment, the following is taken into consideration regarding the obstacles that may occur during the above surgery. That is, the used gauze 12 may be caught on the inner surface of the hopper 26. In this case, (a) when the hopper 25 remains hooked, and (b) because the hopper 26 has a tubular shape, the hopper 26 sticks to the inner surface of the hopper 26 and slides downward to hang down from the lower end of the hopper 26. Only the light emitted from the sensor 28 is blocked, or the upper sensor 28
In some cases, the lower sensor 29 may be shut off. At the time of (a), the used gauze 12 is not counted, but the surgeon witnesses the used gauze 12 in the hopper 26.
Is counted by dropping it into the bag 23 below.
At the time of (b), the warning by the light and the sound is continuously issued, and the surgeon witnesses the used gauze 12 in the hopper 26.
Is counted by dropping it into the bag 23 below, and the alarm is canceled. By releasing this alarm, the used gauze 12 can be continuously counted and weighed.

The light emitted from the upper sensor 28 of the used gauze 12 thrown into the hopper 26 is blocked, the light emitted from the lower sensor 29 is blocked, and the light emitted from the lower sensor 29 is blocked for a predetermined time (this execution). In the example, 0.5 seconds) or more. In this case, the used gauze 12 is not counted and the alarm continues to be issued. If the alarm is released, the used gauze 12 can continue to be counted and weighed.

This is the case where the used gauze 12 put into the bag 23 rises and the light rays emitted from the lower sensor 29 remain blocked or the light rays emitted from the lower sensor 29 and the upper sensor 28 remain blocked.

In this case, the used gauze 12 is not counted, and the alarm continues to be issued.

Therefore, if the used gauze 12 that rises above the bag 23 is removed from the bag 23 and more used gauze 12 can be put into the bag 23, the alarm is canceled and the used gauze 12 is counted continuously. ， Weight can be measured.

In this case, in order to remove the used gauze 12 from the bag 23, for example, even if the hand is extended from above the hopper 26,
This hand cannot pass through the upper sensor 28 and the lower sensor 29, and when raising the hand upwards, the hand blocks the light rays emitted from the lower sensor 29 and the upper sensor 28 from the lower side to the upper side. Since it passes through, the counting is not performed, and therefore, until the used gauze 12 is removed from the bag 23 and the hand is pulled up, the counting is not performed and the alarm continues to be issued.

When the alarm is released, the alarm is released after a lapse of a predetermined time (0.5 seconds in this embodiment) after removing the cause of the alarm, and the used gauze 12 can be continuously counted and the weight can be measured. That is, at this time, the accumulated count value of the used gauze 12 until the alarm is generated, the accumulated bleeding weight measurement value, and the accumulated bleeding amount measurement value are stored in the storage means. , Bleeding weight measurement value, bleeding amount measurement value are added, and the used gauze 12 is continuously counted,
The weight measurement can be continued.

The above operation is shown in FIG.

In FIG. 9, numeral 32 indicates a lower sensor 29 after an object moving from the upper side to the lower side intercepts and passes the light beam emitted from the upper sensor 28.
When the elapsed time measured by the elapsed time measuring means 32 is less than a predetermined time (0.5 seconds in the present embodiment), an object to be inserted is measured. The first determination means for issuing a detection signal, the second determination means 34 for outputting a signal for issuing an alarm when the elapsed time measured by the elapsed time measuring means 32 is the predetermined time (0.5 seconds in this embodiment) or more Means, 35 is first judging means
Counting means for counting the number of times of output of 33, 36 is an alarm device for issuing an alarm by the output signal of the second judging means, 37 is a detection signal of the first judging means 33, a weight input signal 37 per gauze sheet
a, Tare weight input signal of target 25, bag 23 and gauze before use
37b, a blood weight / volume measuring unit for calculating the weight of bleeding sucked into the used gauze 12 and the amount (volume) of bleeding based on the output signal 37c of the weighing platform 16 and the like.

In this way, the light rays emitted by the upper sensor 28 and the lower sensor 29 are counted only when the used gauze 12 drops downward from above and passes through, and no alarm is issued at this time.

Also, when an object blocks one or both of the light beams emitted from the upper sensor 28 and the lower sensor 29, and when the object blocks the light beam emitted from the upper sensor 28 and passes through, this object moves downward. When a predetermined time (0.5 seconds) or more elapses before moving and passing the lower sensor 29, the used gauze 12 is not counted and an alarm is issued.

In addition, after the operation is completed and the bleeding volume measurement is completed,
Pull the string at the upper end of the bag 23 to close the mouth of the bag 23, open the door 13 of the case 11 and take the bag 23 out of the case 11, and then the bag 23 and the used gauze 12 in the bag 23 are taken into the case. Can be easily removed from 11.

Further, since it is easy to separate the loading target 25 from the weighing platform 16, the weighing platform 16 can be used as a balance by removing the loading target 25.

In addition, since the caster 15 is provided in the case 11, it is convenient because the device can be easily moved, and as described above, when the used gauze 12 does not fall from the hopper, it is necessary to take care of it. Women who witness surgery can put this in a bag 23
It is possible to measure the bleeding amount of the used gauze 12 and count the number of the used gauze 12 by putting it in the inside, so that it can be ensured.

In addition, although the target liquid is blood in the above-described embodiment, the present invention is not limited to this, and various general liquids can be used as the target liquid.
Paper or the like may be used.

According to the present invention, a weighing platform for detecting the weight of gauze,
An object to be placed placed on the upper part of the weighing platform, a cylindrical gauze introducing section provided above the object to be introduced, and a passing object sensor provided below the gauze introducing section, Storage means for storing the number of gauze pieces through the passing object sensor, calculating means for calculating the number of used gauze pieces based on the output signal of the passing object sensor, and digital display of the calculation result of the calculating means In the device for measuring the number of gauze products including an indicator, the pass-through sensor is composed of an upper sensor and a lower sensor that are provided vertically below the gauze loading section, and moves downward from above. The time measuring means for measuring the elapsed time from the time when the object passes the light beam emitted from the upper sensor to the time when it passes the light beam emitted from the lower sensor and the time measuring means measures And a counting unit that counts the number of outputs of the first determining unit, and an elapsed time measured by the time measuring unit is equal to or more than the predetermined time. The second that outputs a signal for issuing an alarm when
Since it is composed of the judging means and the alarm device which issues an alarm by the output signal of the second judging means, the used gauze drops the light emitted by the upper sensor and the lower sensor from the upper side to the lower side and cuts through. Used gauze can be counted only when the object is blocked, and when the object blocks the light emitted from the upper sensor, the lower sensor, or both, and the object blocks the light emitted from the upper sensor. When a certain amount of time has passed before the object moves downwards and passes through the lower sensor, it is possible to not count used gauze and issue an alarm. If the bag inside the body is filled with used gauze and rises up and these used gauze blocks the light rays emitted by the upper sensor or the lower sensor, An alarm can be issued without measuring the number of used gauze thrown in from the throwing part, and used gauze thrown in from the gauze throwing part is caught on the inner surface of the gauze throwing part and does not fall. It is possible to continue counting by dropping the used gauze into the bag from the gauze input part, and the used gauze input from the gauze input part is displayed on the inner surface of the gauze input part. If it gets caught and hangs down from the gauze input section and continues to block one or both of the light rays emitted from the upper sensor, the lower sensor, it is possible to issue an alarm without measuring the number of used gauze, Further, the used gauze that has been raised or the used gauze that has been hung down by the gauze input section is pulled up and collected. Can be impossible counting when said, the number of used gauze acids that are submitted from the gauze such insertion portion, can be accurately and automatically measure to prevent measurement errors.

[Brief description of drawings]

1 to 9 show an embodiment of the present invention.
1 is a side view, FIG. 2 is a front view, FIG. 3 is a schematic perspective view showing the inside of the case, FIG. 4 is a front view of an indicator, FIG. 5 is a plan view of a hopper, and FIG. FIG. 7 is a perspective view of the hopper, FIG. 7 is a plan view showing the relationship between the lower opening of the hopper and the upper sensor, and FIG. 8 is a conceptual diagram for explaining the electrical configuration,
FIG. 9 is a block diagram, FIG. 10 is a longitudinal sectional view of a conventional gauze measuring device, and FIG. 11 is a schematic perspective view showing the inside of a conventional gauze measuring device. 16 …… Weighing stand, 22 …… Display unit, 25 …… Injection object, 26 ……
Gauze loading section, 28 …… upper sensor, 29 …… lower sensor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Shou 62-142312 (JP, U) Seki 56-163413 (JP, U) Seki 55-138366 (JP, U) Japanese Patent Publication 6- 22504 (JP, B2) JP 61-12694 (JP, B2) Jpn 6-12738 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A weighing platform for detecting the weight of gauze, an object to be loaded placed on the weighing platform, and a cylindrical gauze loading section provided above the object to be loaded. The passing object sensor provided at the lower part of the gauze input section, the storage means for storing the number of the gauze items via the passing object sensor, and the number of used gauze items based on the output signal of the passing object sensor In a device for measuring the number of gauze products comprising a computing device for computing and a display for digitally displaying the computation result of the computing device, the pass-through sensors are provided vertically below the gauze loading space. It consists of an upper sensor and a lower sensor, and measures the elapsed time from when an object moving from above to below intercepts the light beam emitted from the upper sensor and then passes through the light beam emitted from the lower sensor. A time measuring means for measuring, a first judging means for issuing an inserting body detection signal when the elapsed time measured by the time measuring means is less than a predetermined time, a counting means for counting the number of outputs of the first judging means, Second output of a signal for issuing an alarm when the elapsed time measured by the time measuring means is equal to or longer than the predetermined time
An apparatus for measuring the number of pieces of gauze, which comprises a judging means and an alarm device for issuing an alarm in response to an output signal of the second judging means.