JP3520215B2 - Drug enema device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drug enema device for injecting a contrast agent, a drug or the like into the rectum, large intestine or colon via a rectal catheter or forcibly discharging excrement.

[0002]

2. Description of the Related Art Conventionally, in order to inject a contrast agent or a drug into the rectum, large intestine, or colon, or to forcefully discharge excrement in the intestine with a single rectal catheter, a rectal catheter is used. A drug injection path, a discharge path, and an air injection path were provided inside, and multiple pumps were connected to the pipes connected to each. Also,
Each pump had an electric motor and was switched using a switchgear and a controller. However, since each pump requires an electric motor and a plurality of opening / closing devices, the device is complicated and large, and it is difficult to move and the cost is high.

[0003]

The problem to be solved by the present invention is to solve these problems in the prior art, and it is safe and can be used without anxiety, and the device is small and lightweight, easy to move, and costly. To provide a low-drug enema device.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) An opening is provided on the upper surface of a main body of a drug enema apparatus having a space therein, and an electric motor is provided inside the drug enema apparatus. A rotating disc that is rotated by the drive is provided so that the outer peripheral portion projects from the opening, and a plurality of rotating rollers are provided on the same circumference of the rotating disc, and the rotating roller is closed on the upper surface of the drug enema device main body. A cover that covers the outer peripheral side of the rotating disk in an arc shape is provided at a predetermined interval so that it can be opened and closed, and an elastic tube is placed between the rotating roller and the cover to move the position where the tube is squeezed to deliver the drug. and subjected to suction of exudates and close the cover in the rotatable turntable by operation of the switch so as to enhance safety, yet electrostatic
A rotary shaft whose forward and reverse rotations are controlled by a dynamic motor
It is installed inside the enema device and transmits only one rotation to the same rotary shaft.
One-way clutch is installed, and another one-way clutch is
It is installed on the rotating shaft to transmit rotation in
Rotating disks are provided on the outer periphery where the rotation of the switch is transmitted.
Structure and switch the rotation direction of the electric motor
Pumps drugs through the rectal catheter and eliminates waste
The drug infusion device is designed so that it can be discharged. 2) An air pump for sending air to the rectal catheter is provided, the air destination from the air pump is divided into two, one is connected to the rectal catheter, and the other is pressurized. Connected to a sensor, and controlling the air pump to a predetermined pressure or lower by the signal of the pressure sensor. 3) The drug enema device described in the above 1) 3) The cover is provided with a plurality of irregularities so that the tube does not slip.
The drug enema device as described in 1) or 2) above is provided. 4) A sensor for measuring the rotation speed of the electric motor is provided.
The amount of drug delivered per unit time exceeds the specified amount
And the drug enema device as described in 1) or 2) above, wherein the drive of the electric motor is stopped .

[0005]

In the present invention, the tube is positioned between the rotary roller and the cover, and the rotary disk is rotated by driving the electric motor. When the turntable rotates, the rotating rollers provided on the same circumference of the turntable move in the direction of rotation about the center of rotation of the turntable. The tube is partially squeezed by a rotating roller and a cover. The compressed position of the tube moves due to the movement of the rotating roller in the rotating direction. At this time, the rotating roller moves in the direction of rotation with respect to the center of the rotating plate while rotating due to friction with the tube with respect to the center of the rotating roller, so that the tube can be squeezed without moving. Feeding and suction can be performed by switching the rotation direction of the turntable. Further, in the present invention, when the cover is closed, the rotary disk is made rotatable by the operation of the switch, and the malfunction such as the rotary disk rotating and the tube being caught when the cover is opened is prevented. An air pump that sends air to the rectal catheter is provided, and the destination of the air from the air pump is divided into two, one is connected to the rectal catheter, and the other is connected to the pressure sensor. Measure the pressure of the air sent out and stop the air pump or lower the output of the air pump when the pressure becomes higher than the specified pressure so that the air sent out from the air pump becomes below the specified pressure. To do.
Further, in the present invention, the rotary shaft is provided inside the drug enema device,
Toward a one-way clutch to the rotary shaft, a one-way clutch is provided for transmitting rotation to another one-way clutch and the reverse direction, since the structure for attaching the turntable to the outer circumference of the one-way clutch,
With a simple structure, the rotation of the electric motor that drives the rotary shaft can be switched between normal and reverse so that one of the one-way clutches transmits the rotation, so that the drug is pumped and the discharged product is discharged . In the case where the cover is provided with a plurality of concavities and convexities so that the tube does not slip, when the position where the tube is squeezed by the rotating roller is moved, the position where the tube and the cover are pressed is reliably moved so that the tube and the cover do not slip further . With a sensor that measures the number of revolutions of the electric motor, when the number of revolutions of the electric motor per unit time exceeds a predetermined number of revolutions, the drive of the electric motor is stopped so that the amount of drug delivered per unit time is Do not exceed the prescribed amount.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As a one-way clutch,
There are those that use balls, cocoon rollers, etc., and those that are inexpensive and have no loss during rotation transmission are preferable. As medicines, there are medicines, contrast agents, detergents, etc.
Anything that is almost liquid will do. As the structure of the drug infusion pump and the excrement discharge pump, it is desirable that the pump is a structure that does not directly take in the pressure-fed product but crushes the tube through a tube or the like and sends it out because it is clean and durable.

[0007]

Embodiments of the present invention will be specifically described with reference to the drawings. Embodiments (see FIGS. 1 to 7) In the embodiments shown in FIGS. 1 to 7, a one-way clutch is provided on a rotating shaft driven by an electric motor, and another one-way clutch is used to transmit rotation in the opposite direction. The one-way clutch is equipped with a rotary disk on the outer circumference, multiple rotary rollers are installed on the same circumference of the rotary disk, the cover is openable and closable, and the electric motor switch is turned off when the cover is opened. A device is provided and an air pump for sending air to the rectal catheter is provided. The destination of the air from the air pump is divided into two, one is connected to the rectal catheter and the other is connected to the pressure sensor. Control the air pump below a predetermined pressure, provide multiple irregularities on the cover, install a transformer in the middle of the wiring from the power supply, step down the power supply to 12V, and rotate the electric motor. This is an example of a drug enema device in which a sensor for measuring the number is provided so that the drive is stopped when the electric motor reaches a predetermined number of rotations, and the amount of the drug to be pumped by the drug injection pump can be controlled. FIG. 1 is a plan view of the drug enema apparatus of the embodiment. FIG. 2 is a perspective view of the drug enema apparatus of the embodiment. FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a rear view of the drug enema apparatus of the embodiment. FIG. 5 is a partially enlarged sectional view taken along line BB of FIG. FIG. 6 is a partially enlarged sectional view taken along line BB of FIG. FIG. 7 is an explanatory view of the drug enema apparatus of the embodiment. In the figure, 1 is a drug enema device, 1a is a drug enema device body, 2 is an electric motor, 3a is a sprocket, 3b is a sprocket, 4 is a chain belt, 5 is a bearing, 6 is a drug injection pump, and 6a is a feed. One-way clutch that transmits rotation only in one direction, 6b is a rotary disc, 6c is a rotary roller, 7 is a pump for excrement discharge, 7a is a one-way clutch that transmits rotation only in the returning direction, 7b is a rotary disc, and 7c is a rotary disc. Rotating roller, 8 is a cover, 8a is a concavo-convex portion, 8b is a notch, 8c is a joint, 8b is a spring, 8e is an engagement hole, 9 is a switch, 9a is an opening / closing lever, 9b is a rotating shaft, 9c is a spring, 10 is a tube support plate, 11 is a drug injection tube, 12 is an excrement discharge tube, 13 is an air pump, 16 is a safety device, 16a is a pin, 17 is a rotary shaft, 18 is a switch, 19 is a switch,
20 is a switch, 21 is a pressure sensor, 22 is an air tube, 23 is an air pipe, 24 is an external connector, 25
Is a fixed plate, 26 is a transformer and control unit, 30 is a rectal catheter, 31 is an air hose, 32 is a container, 32a is a contrast agent, 33 is a waste collection container, and 33a is excrement. In the embodiment, a box-shaped drug enema device main body is used as shown in FIGS. First, the electric motor 2 is provided inside the main body 1a of the drug enema device. A sprocket 3a is attached to the output shaft of the electric motor 2. Next, in parallel with the output shaft of the electric motor 2, the rotary shaft 17 is rotatably supported at its both ends by bearings 5 and attached to the drug enema apparatus main body 1a. The sprocket 3b is attached to one end of the rotary shaft 17. Next, the chain belt 4 is stretched over the sprockets 3a and 3b. Next, a one-way clutch 6a that transmits rotation to the rotating shaft 17 only and a one-way clutch 7a that transmits rotation to the returning direction are inserted into the inner periphery of the one-way clutches 6a and 7a. To install. Next, the turntable 6b is attached to the outer circumference of the one-way clutch 6a, and the turntable 7b is attached to the outer circumference of the one-way clutch 7a. Next, the rotary rollers 6c are rotatably attached at four locations on the same circumference on the surface of the rotary disk 6b facing the rotary disk 7b. Similarly, the rotary rollers 7c are rotatably attached at four positions on the same circumference on the surface of the rotary disk 7b facing the rotary disk 6b. An opening is provided on the upper surface of the main body 1a of the drug enema device, and as shown in FIG.
Rotating rollers 6c and 7 attached to the upper part of b and the turntable
A part of c is projected from the opening. Next, a joint 8c is provided on the side of the opening of the drug enema apparatus main body 1a, a fixing plate 25 is provided at one end for opening and closing, and a cover 8 is provided on the fixing plate 25. As a result, the cover 8 can be opened and closed. When the cover is closed, the inner surface thereof has a shape that covers the outer peripheral sides of the rotating disks 6b, 7b at a predetermined distance from the rotating rollers 6c, 7c in an arc shape. Next, the uneven portion 8a is provided on the inner surface of the cover. Next, as shown in FIG. 2, cutouts 8b are provided at four positions of the cover 8. Next, a spring 8d is provided so as to urge the joint 8c of the cover toward the open side. Next, an engaging hole 8e is provided at the tip of the cover 8. Next, as shown in FIG. 5, a box-shaped switch 9 is attached to the cover on the side opposite to the opening provided with the joint. A rotary shaft 9b is provided on the upper portion near the cover of the switch. Next, attach the opening / closing lever 9a to the rotating shaft 9b,
The a is rotatable with respect to the rotating shaft 9b. A front end of the opening / closing lever 9a is bent downward to project from the switch 9, and a rear end of the opening / closing lever 9a also projects from an opening portion of the switch 9. The lower surface of the rear end is positioned with a predetermined gap at the end of the opening. Next, the rotating shaft 9b of the opening / closing lever 9a
A spring 8d is attached so as to urge the rear side downward. Next, three switches 18, 19, 20 are provided on the upper surface of the main body 1a of the drug enema device. Next, the drug enema device body 1
The air pump 13 is provided inside the a.
The air tube 22 is attached to the feed port, the middle of the air tube 22 is divided into two, one is attached to the pressure sensor 21, and the other is attached to the air pipe 23 provided on the side surface of the drug enema apparatus main body 1a. Next, as shown in FIG. 6, through holes are provided in the upper surface and the lower joint 8c of the drug enema apparatus main body 1, and the safety device 16 is attached so that the pins 16a project to the outside from the through holes. Next, the tube support plates 10 are attached to the upper surface of the drug enema apparatus main body 1a at two positions. Next, the electric motor 2, the switches 18, 19, 20,
Wiring is performed so as to connect the external connector 24 and the safety device 16. Next, the connection cord is connected to the external connector 24 and the transformer 26, and the power cord of the transformer 26 is connected to the outlet of the room used. Further, the electric motor 2 used in the present embodiment has a built-in sensor that outputs a rotation signal according to the number of rotations, and is wired so that a signal is sent to the control unit. To test a patient using the drug enema device of this example, first administer the antispasmodic / laxative to be tested,
A contrast agent 32 a suitable for the condition of the patient's lesion, constitution, and intestine is placed in the container 32. The rectal catheter 30 is then inserted into the patient's anus and secured in the anus. Next, the drug injection tube 11 connected to the rectal catheter is connected to the drug injection pump 6
The axis of the rotary roller 6c is positioned so as to extend in a direction perpendicular to the both sides, and both sides of the drug injection pump 6 are supported by the tube support plates 10. Next, excrement discharge tube 12
Is disposed so as to extend in a direction perpendicular to the axis of the rotating roller 7c of the excrement discharge pump 7, and the excrement discharge pump 7
Both sides of each are supported by the tube support plate 10. One of the excrement discharge tubes 12 is connected to the rectal catheter 30,
One of them is connected to the waste collection container 33. Next, the air hose 31 is connected to the air pipe 23, and the other end of the air hose 31 is connected to the rectal catheter 30. Next cover 8
Close. When the cover 8 is closed, the open joint 8c pushes the pin 16a to move it as shown in FIG. Pin 1
The movement of 6a activates the switch of the safety device 16 to connect a part of the power supply line of the electric motor 2 so that the electric motor 2 can rotate. As described above, in the drug enema apparatus of the present embodiment, the medicine injection pump 6 and the excrement discharge pump 7 do not malfunction due to an erroneous operation by the safety device 16 when the cover is open. Therefore, the drug injection tube and excrement discharge tube that are not fixed due to the cover being open are entangled in the drug injection pump 6 and the excrement discharge pump 7, flow backward, and stop the feeding of the drug and the suction of the discharge. There is nothing to do. Therefore, it is very safe and can be used with confidence. Further, when the cover 8 is closed, the tip of the opening / closing lever 9a is engaged with the engaging hole 8e provided at the tip of the cover 8 so as to fit therein. If the cover 8 is mistakenly opened in this state, the tip of the opening / closing lever 9a will be engaged with the engaging hole 8e at the tip of the cover 8.
, The rear end portion of the opening / closing lever 9a hits the switch 9 and does not move any further. Therefore, the cover 8 will not be opened by being touched by vibration or the like. Therefore, the cover is accidentally opened during use, and the drug injection tube and the excrement discharge tube are entangled with the drug injection pump 6 and the excrement discharge pump 7, causing backflow and stopping the sending of the drug and suction of the discharged product. There is nothing to do. Thus, the drug enema apparatus of this example is very safe and can be used with confidence. In this state, the transformer and control unit 26 or the switch 18 is operated to rotate the electric motor 2 forward. As a result, the sprocket 3a attached to the output shaft of the electric motor 2 rotates, the chain belt 4 rotates the sprocket 3b, and the rotating shaft 17 rotates forward. Rotating shaft 17
When the gear rotates normally, the one-way clutch 6a transmits the rotation of the rotating shaft 17 to the outer circumference, and the turntable 6b rotates. On the other hand, since the one-way clutch 7a transmits the rotation only in the returning direction, the rotation of the rotating shaft is not transmitted. When the rotary disk 6b rotates, the rotary roller 6c attached to the rotary disk rotates so as to move the position where the medicine injection tube 11 located between the cover 8 and the rotary roller 6c is squeezed. At this time, in the present Example 1, since the uneven portion 8a is provided on the inner surface of the cover as shown in FIG. 3, when the position where the drug injection tube 11 is squeezed is moved, the drug injection tube does not come into contact with the uneven portion. The tube does not move with the rotating roller because it does not slip. Therefore, the tube is not stretched partially, and the possibility of failure is suppressed, so that the tube can be used safely. In this way, the medicine is extruded one after another, so that the medicine injection tube 1 on the rectal catheter 30 side of the medicine injection pump 6
The pressure of the medicine pressure in 1 becomes high. Therefore, the medicine flows toward the rectal catheter and is injected into the intestine of the human body through the rectal catheter. In addition, the control unit calculates the number of revolutions of the electric motor per unit time or the amount of drug delivery per unit time by the rotation signal from the sensor incorporated in the electric motor, so as not to exceed the predetermined amount, Make sure that the human body is not overloaded and that medicines can be delivered within a comfortable range. At the same time as injecting the drug into the intestine, the transformer and control unit 26 or the switch 19 is operated to operate the air pump 13 so that air is supplied to the air tube 2.
2. It is sent to the rectal catheter 30 via the air pipe 23 and the air hose 31 and sent to the intestine. At this time, the air tube 22 is divided into two, and since one of them is connected to the pressure sensor 21, the same pressure as the air sent to the rectal catheter 30 is applied to the pressure sensor 21. The pressure sensor 21 emits a signal when the pressure exceeds a predetermined pressure. When this signal reaches the control unit 26, the output of the air pump 13 is reduced or stopped so that the pressure of the air sent into the intestine does not exceed a predetermined pressure.
As a result, it is possible to use it without any excessive pressure on the intestine, which is very safe and reliable. After the medicine and air are sent to the intestine in this way and the examination is performed, the electric motor 2 is rotated in the reverse direction by operating the transformer and control unit 26 or the switch 20. As a result, the rotary shaft 17 rotates in the reverse direction. The one-way clutch 6a transmits rotation only in the feed direction, and thus does not transmit rotation. On the other hand, the one-way clutch 7a transmits rotation. Therefore, the turntable 7b rotates, and the rotating roller 7c attached to the turntable
Rotates while moving the position where the excrement discharge tube 12 located between the cover 8 and the rotating roller 7c is squeezed. At this time, in this embodiment, as shown in FIG. 3, since the uneven portion 8a is provided on the inner surface of the cover, the excrement discharge tube has an uneven portion when the position where the excrement discharge tube 11 is compressed is moved. The tube does not move with the rotating roller because it does not slip against it. Therefore, the tube is not stretched partially, and the possibility of failure is suppressed, so that the tube can be used safely. As a result, the pressure in the excrement discharge tube on the rectal catheter 30 side of the excrement discharge pump 7 becomes lower. Therefore, the excrement in the intestine is sucked through the rectal catheter. By sucking and discharging the excrement in this manner, the excrement does not get entangled with the pump and the pump cannot operate, so that the durability is improved. The sucked excrement 33a is collected in the waste collection container 33. When the examination and the post-treatment of the examination are completed in this way, the rectal catheter 30 is removed from the patient, and the work is completed. As described above, the drug enema apparatus of the present embodiment prevents the drug injection pump and the excrement discharge pump from operating in the state where the cover is open, and covers the cover while the drug injection pump or the excrement discharge pump is operating. Is designed to prevent accidental opening, so it is extremely safe and secure to use.
Further, in the drug enema device of the present embodiment, the tube is squeezed for feeding and suction without taking the drug or excrement into the device from the drug injecting tube and the excretory discharge tube, which is very hygienic. And the post-treatment of the device is very simple. Further, the combination of the electric motor and the two one-way clutches performs the feeding of the medicine and the discharge of the excrement by switching the forward and reverse rotations of the single electric motor, so that the size and weight are low and the cost is low. In addition, in the drug enema device of this embodiment, a 100 V AC power source is used for the transformer 2.
It is set to DC 12V by 6 and used. Therefore, high voltage is not applied in case of short circuit or leakage,
Very safe.

[0008]

According to the present invention, there can be provided a drug enema device which is highly safe and can be used with peace of mind, has a small and lightweight device, is easy to move, and is low in cost. An air pump for sending air to the rectal catheter is provided, the air destination from the air pump is divided into two, and one is connected to the rectal catheter.
The other end connected to a pressure sensor can be a drug enema device that can be used more safely. The rotating shaft is provided inside the drug enema device, the rotating shaft is provided with a one-way clutch, the other one-way clutch is provided with a one-way clutch for transmitting rotation in the reverse direction, and the turntable is attached to the outer periphery of the one-way clutch. The structure can be used as a drug enema device which is smaller, lighter and less expensive. A cover having a plurality of irregularities to prevent the tube from slipping can be used more safely. A transformer provided in the middle of the wiring from the power source to reduce the voltage to a low voltage of 25 V or less to drive the electric motor can improve the safety against short circuit and leakage. A sensor provided with a sensor for measuring the number of rotations of an electric motor prevents the amount of drug delivery per unit time from exceeding a predetermined amount so that the drug can be delivered within a comfortable range without affecting the human body.

[Brief description of drawings]

FIG. 1 is a plan view of a drug enema device of an embodiment.

FIG. 2 is a perspective view of the drug enema device of the embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a rear view of the drug enema device of the embodiment.

5 is a partially enlarged cross-sectional view taken along the line BB of FIG.

6 is a partially enlarged cross-sectional view taken along line BB of FIG.

FIG. 7 is an explanatory diagram of a drug enema device of an example.

[Explanation of symbols]

1 drug enema device 1a Drug enema device body 2 electric motor 3a sprocket 3b sprocket 4 chain belt 5 bearings 6 pump for drug injection 6a One-way clutch that transmits rotation only in the feed direction 6b turntable 6c rotating roller 7 Excretion pump 7a One-way clutch that transmits rotation only in the returning direction 7b turntable 7c rotating roller 8 covers 8a uneven part 8b Notch 8c joint 8d spring 8e Engagement hole 9 switch 9a Open / close lever 9b rotating shaft 9c spring 10 Tube support plate 11 Drug injection tube 12 Excretion discharge tube 13 Air pump 14 Missing number 15 Missing number 16 Safety device 16a pin 17 rotation axis 18 switch 19 switch 20 switches 21 Pressure sensor 22 Air tube 23 Air pipe 24 External connector 25 fixed plate 26 Transformer and control unit 27-29 Missing number 30 rectal catheter 31 air hose 32 containers 32a contrast agent 33 Waste collection container 33a excrement

Continuation of the front page (56) Reference JP-A-61-58665 (JP, A) JP-A-6-7372 (JP, A) JP-A-8-84777 (JP, A) JP-A-10-192400 (JP , A) Japanese Unexamined Patent Publication No. 50-144290 (JP, A) Actual flat 1-104152 (JP, U) Actual flat 3-56449 (JP, U) Actual flat 3-25877 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61M 31/00 A61M 3/00

Claims (4)

(57) [Claims] 1. An opening is provided in an upper surface of a drug enema apparatus main body having a space therein, and an outer peripheral portion of a rotary disk, which is rotated by driving an electric motor, is protruded from the opening inside the drug enema apparatus. Provided as such, provided with a plurality of rotating rollers on the same circumference of the same rotating disk, and when closed on the upper surface of the main body of the drug enema device, a cover for covering the outer peripheral side of the rotating disk in an arc shape at a predetermined interval with the rotating roller. It is openable and closable, and an elastic tube is placed between the rotating roller and the cover to move the position where the tube is squeezed to feed the medicine and suck the discharged substance, and when the cover is closed, the switch operates. The turntable can be rotated to increase safety ,
Moreover, the rotation whose forward and reverse rotations are controlled by the electric motor
The shaft is installed inside the drug enema device, and only one can be rotated on the same rotary shaft.
A one-way clutch for transmitting rolling
Is installed on the rotary shaft so as to transmit rotation in the opposite direction.
Place the turntable around the outer periphery where the rotation of the directional clutch is transmitted.
Each has a structure to switch the rotation direction of the electric motor.
Pumping and excretion of the drug via the rectal catheter
A drug enema device designed to discharge a discharge . 2. An air pump for sending air to a rectal catheter is provided, the destination of air from the air pump is divided into two, one is connected to the rectal catheter, and the other is connected to a pressure sensor. The drug enema device according to claim 1, wherein the air pump is controlled to a predetermined pressure or less by a signal. 3. The tube is provided with a plurality of projections and depressions so that the tube can slide smoothly.
The drug enema device according to claim 1 , wherein the drug enema device is not provided. 4. A sensor for measuring the rotational speed of an electric motor.
Is provided so that the amount of drug delivered per unit time is
3. The drug enema device according to claim 1 , wherein the drive of the electric motor is stopped when it exceeds the limit.