JPH0558150U - Automatic open / close device for powdered medicine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an automatic opening / closing device for a granular drug capable of preventing contamination of bacteria by automatically opening the drug bag, loading the drug and collecting the drug bag. [Structure] A hopper 1 provided with a wire net that divides the inside of the lower end into upper and lower parts, and a cutting table 5 horizontally opposed to above the hopper 1 with a gap and rotatably provided downward from a central gap side.
And a cutting blade 8 of the medicine bag a movably provided through the gap 6 of the cutting table 5, and a direction perpendicular to the vertical plane that faces the peripheral wall 2 on one side outside the hopper 1 and passes through the gap 6 of the cutting table 5. Piercing rod 9 movably provided to the pier, notch 4 provided on the peripheral wall 2 of the hopper 1 on the same straight line as the piercing rod 9, and an empty drug bag provided outside the hopper 1 on the opposite side of the piercing rod 9. a
Automatic opening device for powdered and granular chemicals with a recovery arm.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for automatically opening a powdery drug in a medicine bag, throwing the medicine into a hopper, and automatically collecting the empty medicine bag.

[0002]

[Prior Art]

 When powdered and granular drugs are automatically added to the dissolution tank and dissolved and mixed, as in the case of artificial dialysate preparation, the operator opens the drug bag and inserts the drug into the hopper, and then a fixed amount from the hopper. The above chemicals are supplied to a dissolution tank filled with a solution such as pure water and dissolved to form a solution adjusted to a constant concentration.

[0003] For example, powdery granular medicines are packed in a synthetic resin medicine bag in an amount necessary for one preparation in a dissolution tank, and an operator takes out the medicine bag from the storage place and removes the medicine bag. It was cut with scissors and the chemicals were put into the hopper. All of this melting work was done manually. The dissolved and prepared dialysate is stored in the storage tank from the dissolution tank and automatically supplied to the dialysis machine as needed.

Recently, however, it has been pointed out that bacterial contamination of the dialysate and contamination of endotoxin produced by the bacteria into the dialysate are factors that cause fever and long-term complications in patients undergoing dialysis treatment. For this reason, it is necessary to thoroughly disinfect related tools such as dissolution tanks and tanks. In particular, the sodium bicarbonate component solution is weakly alkaline and susceptible to bacterial contamination, so measures such as using it as soon as possible after dissolution and preparation are recommended. Has been taken.

However, under the present circumstances, since a series of melting operations such as opening of the medicine bag and charging of the medicine into the hopper are performed manually, there are many occasions when the medicine is exposed to the atmosphere more than necessary, and the operator is often exposed to the atmosphere. It was unavoidable that bacteria adhering to the body surface and bacteria floating in the atmosphere were mixed in the drug. In addition, it has been pointed out that, in the process of dissolving a sodium bicarbonate-based drug, the drug powder floats up into the atmosphere when it is charged into the hopper, and the worker may inhale it.

[0006]

[Problems to be solved by the device]

 In view of such conventional circumstances, the present invention prevents bacteria from being mixed into the medicine during dissolution and preparation of the dialysate, and opens the medicine bag so that an operator does not inhale the powdered medicine. It is another object of the present invention to provide an automatic opening / closing device for powdery granular drug, which can automatically perform the processes from the drug injection to the drug bag collection.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the automatic opening and dispensing device for powdered and granular medicines of the present invention is provided with a hopper for feeding powdered and granular medicines, which is provided with a wire mesh that vertically divides the lower end portion, and a space above the hopper. A drug bag cutting table that is composed of two horizontally opposed flat plates, and is provided so that each flat plate can rotate downward around the front edge side and the rear edge side opposite to each other. And the cutting blade of the drug bag, which is located on a vertical plane that passes through the gap of the cutting table and is movable vertically or horizontally, and the gap of the cutting table facing the peripheral wall on one side outside the hopper. A piercing stick of a drug bag that is designed to be able to move forward and backward in the direction perpendicular to the vertical plane that passes through it, and a notch cut through the peripheral wall on one side and the other side of the hopper on the same straight line as the piercing stick. Use a bag of medicine that is placed outside the hopper on the opposite side of the rod. Characterized by comprising an arm.

[0008]

[Action]

 In the device of the present invention, the medicine bag placed on the cutting table is automatically cut by the cutting blade into two at substantially the center and opened, and at the same time or thereafter, the cutting table is cracked from the central gap and pivoted downward. By doing so, the drug bag is automatically dropped into the hopper with the cutting port facing down, so the powdery granular drug in the drug bag flows out of the bag through the cutting port and is supplied to the dissolution tank from the hopper. .. Therefore, the process from cutting the drug bag to loading the drug is extremely quick, and since the cutting port of the drug bag faces the opening side of the lower end of the hopper, the powdery granular drug has less chance of being exposed to the air than before, and bacteria In addition to being able to almost completely prevent the contamination of powdered chemicals, there is no danger of inhalation even if powdered chemicals scatter around because the worker is not around them.

[0009] Furthermore, the drug bag that has fallen into the hopper with the cutting opening in the center down is stopped from falling by the wire netting at the bottom of the hopper, and at that time, the drug inside the cut-down side remains. Partly because of the presence of a wire, the wire net in the hopper stands almost upright with the cutting edge down. At this time, the piercing stick pierces the drug bag cut in two from the lateral direction through the notch in the peripheral wall on one side of the hopper, and then pushes the drug bag into the notch in the peripheral wall on the opposite side and takes it out of the hopper. Therefore, the drug bag is squeezed by the peripheral wall of the hopper, and the drug inside is not left in the hopper, and is automatically taken out to the outside on the opposite side.

The empty medicine bag taken out of the hopper is removed from the piercing rod by the collecting arm and collected in a predetermined collecting container. The collecting arm may have any structure as long as the drug bag can be removed from the piercing rod, for example, one having a hook for hooking the bag at the tip of the rotating arm, one having a hollow arm for sucking the bag by suction. Etc. can be used.

The shape and the cutting operation of the cutting blade for cutting the medicine bag on the cutting table are not particularly limited. For example, a rotating circular blade descends to cut the medicine bag, and a triangular blade is linear. The saw blades or knives arranged side by side descend to push down the medicine bag.Similar saw blades or knife cutting blades move in the longitudinal direction to pull the medicine bag from below. Although a cut object or the like can be used, push-cut by a saw-shaped cutting blade or pull-cut by a knife-shaped cutting blade that does not generate cutting waste of a drug bag is preferable.

[0012]

【Example】

 The device of the present invention will be described with reference to FIG. The hopper 1 for charging powdery chemicals is a square cylinder made of stainless steel with an open upper end, and has a peripheral wall 2 with an upper end side length of about 300 mm and a height of about 250 mm. Is fitted with a coarse mesh 3 that divides the interior vertically. In addition, a cutout 4 is provided in a horizontal straight line through the peripheral wall 2 of the one side of the quadrangular cylindrical shape of the hopper 1 and the peripheral wall 2 on the opposite side opposite thereto. The size of the cutout 4 is 70 mm in length and 180 mm in width, and its lower end is located 150 mm above the wire mesh 3. A normal screw feeder (not shown) is installed below the wire net 3 of the hopper 1, and one end of the screw feeder reaches the chemical injection port of the melting tank and the powder fed into the hopper 1 is discharged. The granular drug can be supplied to the dissolution tank.

Above the hopper 1, there is provided a cutting table 5 composed of two flat plates that are horizontally opposed to each other with a gap 6 interposed therebetween. The cutting table 5 is opposite to the front edge portions of the respective flat plates facing each other. It is configured to mechanically rotate about a rotation shaft 7 on the side of the rear end edge of the side, and to break from the center so that each flat plate hangs down in the peripheral wall 2 of the hopper 1 with the front end of the flat plate facing down. The cutting table 5 has a size such that the medicine bag a of about 255 × 80 mm in length and width can be placed, for example, about 350 × 100 mm in length and width, and the width of the central gap 6 is set to about 30 mm. Further, above the cutting table 5 on a vertical plane passing through the gap of the cutting table 5, a saw-shaped cutting blade 8 having a length of about 100 mm in which triangular blades are arranged in a straight line is vertically arranged on the plane. It is provided so that it can be moved.

On the outside of the peripheral wall 2 on one side of the hopper 1, a piercing rod 9 for the medicine bag a is provided in a direction orthogonal to the vertical plane passing through the gap 6 in the center of the cutting table 5. The piercing rod 9 is a metal rod having a length of about 600 mm and a diameter of about 6 mm and having a pointed tip, and the notch 4 of the peripheral wall 2 on one side formed in the peripheral wall 2 of the hopper 1 and the notch of the peripheral wall 2 on the opposite side. Through the mouth 4, it is possible to advance to a predetermined position and retract to the original position. Further, a stopper 10 is fixed near the tip of the piercing rod 9, and the rear end side of the piercing rod 9 is resisted when the pierced drug bag a passes through the notch 4 in the opposite peripheral wall 2. To prevent it from being removed to the outside on the opposite side of the hopper 1.

A recovery arm for the medicine bag a is provided outside the hopper 1 on the side opposite to the piercing rod 9, that is, outside the hopper 1 in the forward direction of the piercing rod 9. The recovery arm shown in FIG. 1 is composed of four arms 11 having a length of about 250 mm, which are provided around the rotary shaft 13 at right angles to each other, and a hook 12 attached to the tip of each arm 11. It rotates at a constant speed or intermittently in the direction of arrow 1. When the hooking hook 12 at the tip of the rotating arm 11 moves forward and passes near the stopper 10 of the piercing bar 9 stopped at a predetermined position, the piercing bar 9 passes through the notch groove of the hooking hook 12 and becomes empty. Only the medicine bag a can be scratched and dropped, and an empty medicine bag a can be collected in a collection container (not shown) installed below it.

Next, the operation of opening the medicine bag and inserting the medicine by the above device will be described. A drug bag a filled with a powdery or granular drug for adjusting dialysate, for example, a powdery or granular drug AF-1P (trade name of Fuso Yakuhin Co., Ltd.) consisting of sodium bicarbonate and fructose, is placed on a conveyor from a predetermined storage location. It is placed on the cutting table 5 by a normal transfer means such as. After that, the cutting blade 8 descends from above through the gap 6 of the cutting table 5, cuts the medicine bag a into almost half, and then rises to the original position again. Almost at the same time as the cutting blade 8 was raised, the cutting table 5 was cracked from the central gap 6 and rotated downward, and the medicine bag a was automatically dropped into the hopper 1 with the cutting opening facing downward. Rise to the position and close again.

The medicine bag a that has fallen into the hopper 1 stops in a substantially standing state on the wire net 3 at the bottom of the hopper 1 with the cutting opening facing down, and the granular drug b in the medicine bag a comes into the bag from the cutting opening. It flows out and is supplied from the hopper 1 to the melting tank. Almost at the same time as the dropping of the medicine bag a, the piercing bar 9 starts to move forward, pierces the medicine bag a cut in two through the notch 4 of the peripheral wall 2 on one side of the hopper 1 from the lateral direction, and the opposite The drug bag a is pressed against the peripheral wall 2 by the notch 4 in the peripheral wall 2 on the side and squeezed, and the powdery granular drug b remaining inside is completely charged into the hopper 1.

After that, the piercing rod 9 further advances, and the empty medicine bag a is automatically taken out of the hopper 1. At the same time when the piercing rod 9 stops at a predetermined position, the arm 11 rotates, and the empty drug bag a is dropped from the piercing rod 9 by the hook 12 of the arm 11 and collected in the collecting container installed below. After the collection is completed, the piercing rod 9 is retracted to its original position, and the arm 11 also stops rotating.

[0019]

[Effect of the device]

 According to the present invention, since the process of opening the drug bag and loading the drug to recovering the drug bag can be automatically performed, the chance of the drug coming into contact with the atmosphere during the dissolution and preparation of the dialysate is minimized, and the bacteria are transferred to the drug. Can be prevented, and labor is not required because the worker does not have to be present for opening and loading, and the danger of drug suction by the worker can be avoided.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a specific example of the device of the present invention.

[Explanation of symbols]

 a medicine bag b powder granulated medicine 1 hopper 2 peripheral wall 3 wire netting 4 notch 5 cutting table 6 gap 7 rotating shaft 8 cutting blade 9 piercing bar 10 stopper 11 arm 12 hooking hook 13 rotating shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Takeshi Shibata 5587-22 Shin-yoshida-cho, Kohoku-ku, Yokohama-shi, Kanagawa

Claims (1)

[Scope of utility model registration request] 1. A hopper for charging a powdery chemical agent, which is provided with a wire net that vertically divides the inside of the lower end, and two flat plates horizontally opposed to each other with a gap above the hopper, each flat plate facing each other. It is located on the vertical plane that passes through the gap between the cutting base and the cutting base of the drug bag that is provided so as to be able to rotate downward around the rear edge side opposite to Alternatively, a cutting blade of a medicine bag provided so as to be movable in the lateral direction and a cutting bag provided outside the hopper so as to be able to move forward and backward in a direction orthogonal to a vertical plane that faces a peripheral wall on one side of the hopper and passes through a gap of the cutting table. A piercing stick of the medicine bag, a cutout provided through the peripheral wall on one side and the other side of the hopper on the same straight line as the piercing stick, and a collecting arm for the medicine bag provided outside the hopper on the opposite side of the piercing stick. Automatic opening and feeding of powdered and granular drug characterized by having apparatus.