JP4100009B2 - Automatic powder melting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder dissolving apparatus that automatically opens a sachet filled with a predetermined amount of powder and supplies the powder to a dissolution tank to automatically prepare a solution having a predetermined concentration. More specifically, the present invention relates to an automatic powder dissolving apparatus that can open a bag filled with a predetermined amount of a powder preparation for dialysate preparation and prepare a dialysate having a predetermined concentration.
[0002]
[Prior art]
Conventionally, hemodialysis therapy has been performed for many patients with renal failure, and bicarbonate dialysate used for hemodialysis therapy includes an A stock solution containing an electrolyte other than bicarbonate, a B stock solution containing bicarbonate, and diluted water. Is prepared by mixing in a specified ratio. The A stock solution and the B stock solution may be prepared from a solution formulation, or may be prepared by dissolving a powder formulation in dilution water at a medical site, but in recent years there has been a problem with dust in a plastic container filled with a solution formulation. For the reasons of transportation cost, storage space, work load such as transportation, filling, etc., powder preparations filled in soft wrapping bags are increasingly used.
In the powder medicine, highly reactive components are separately packaged in order to maintain stability. When using the powder preparation, one set of them is dissolved in diluted water at the medical site, and first, a concentrated liquid having a higher concentration than the dialysate actually used is prepared. In the melting process, a powder dissolving apparatus is often used. Accordingly, the dissolution apparatus is required to reduce the concentration stability and cleanliness of the prepared concentrated liquid and the work load required for the preparation.
[0003]
Generally, the dissolution apparatus is roughly divided into a simple dissolution type that dissolves several tens of powder preparations filled in a sachet together and an automatic dissolution type that dissolves one set of powder preparations or a powder preparation continuously. .
The simple dissolution type dissolution device is, for example, that dozens of powder formulations are manually added to a dissolution tank into which a specified amount of dilution water has been introduced, and the dilution water and powder preparation in the dissolution tank are circulated by a pump. Dissolve to prepare a 100-200 L concentrated solution. In order to prepare a large amount of concentrated liquid, the above-mentioned type of dissolution apparatus is enlarged, and it is difficult to install in facilities where installation space is limited. A large amount of cleaning liquid is required, the burden of unpacking the bag and loading the powder preparation is large, and the preparation is exposed to the outside air when the powder preparation is charged, and there is a possibility that bacteria may be mixed in. May occur. For this reason, the latter automatic melt | dissolving type which can ensure the safety | security in a density | concentration and a cleanliness, and loads various operations to the apparatus side is desired.
[0004]
Automatic dissolution type dissolution devices include constant volume mixing, concentration control, weight control, and saturation concentration methods, all of which are safer in terms of concentration and cleanliness than simple dissolution types. It is expensive and the work burden on medical staff is small.
The constant volume mixing system dissolves and dissolves a set of sachets filled with a predetermined amount of powder formulation and a specified amount of diluted water measured by volumetric method, and it is necessary to measure the powder formulation. The feature is that there is no. The dissolution apparatus based on the concentration control system prepares the dialysate at a constant concentration while measuring the solution concentration in the dissolution tank with the concentration sensor, and the concentration of the prepared dialysate is affected by the accuracy of the concentration sensor. In addition, the weight control system dissolver measures the amount of the powder preparation to be added with a weight sensor, and mixes and dissolves with a predetermined amount of dilution water. The concentration of the prepared liquid is affected by the accuracy of the weight sensor. Furthermore, the dissolution apparatus using the saturated concentration method is a method in which a powder preparation is first dissolved to the saturation concentration range, and the concentration of the solution is measured while measuring with a concentration sensor. The concentration of the prepared liquid is affected by the accuracy of the concentration sensor.
[0005]
As described above, the concentration control method, the weight control method, and the saturation concentration method dissolution apparatus use a sensor such as a concentration sensor or a weight sensor, and the concentration of the prepared liquid is affected by the accuracy of the sensor. Concentration adjustment may not be possible due to failure or noise. On the other hand, the dissolution apparatus using the constant volume mixing method mixes the preparation weighed under strict process control in the manufacturing process with the specified amount of dilution water measured by the volumetric method. The accuracy is very high and there is no worry of sensor failure or noise.
[0006]
As a dissolution apparatus using the above-mentioned constant volume mixing method, a container in which a powder preparation is quantitatively sealed is incorporated into a dissolution line, and dilution water is supplied into the container to mix and dissolve the powder preparation to prepare a solution. Inverted a container in which a powder preparation is encapsulated on a dissolving container into which a diluted solution has been introduced (JP-A-4-84967, JP-A-5-146487, etc.) and encloses the powder preparation There are known ones in which the lower mouth of the container is opened and a powder preparation is put into a dissolution container to prepare a solution (Japanese Patent Laid-Open Nos. 5-146485, 5-168678, etc.).
A container enclosing a powder preparation used in these methods needs to use a hard container such as a blow bottle or a sachet having a hard mouth part due to the configuration of the apparatus. These containers are expensive to manufacture and are problematic in that they are bulky when the used containers are discarded. In addition, in the above-mentioned device that opens the lower part of the powder preparation container and discharges the preparation by natural dropping, the powder preparation is likely to be scattered, and the cutting blade and the cutting mechanism are in contact with the preparation. There is a possibility of mixing.
[0007]
Also known is an apparatus in which one sachet of powder preparation is manually placed in advance in a hopper, the hopper is rotated at the time of solution preparation, the preparation is introduced into a dissolution tank, and mixed with dissolution water to prepare a solution. (JP-A-10-232). However, this apparatus not only has a heavy burden of the powder preparation charging operation, but also has a high possibility that bacteria will be mixed into the preparation during the charging operation. In addition, if the time during which the preparation is stored in the hopper becomes long, problems such as moisture absorption of the preparation and sticking of the absorbed preparation to the hopper may occur.
[0008]
On the other hand, an automatic dissolution apparatus for a powder preparation filled in a soft sachet has been developed (Japanese Utility Model Laid-Open No. 4-83250, Japanese Patent Laid-Open No. 7-265393, Japanese Patent Laid-Open No. 8-207915). These devices convey the wrapping bag to the upper part of the dissolution tank by an endless conveyance band while holding the upper end of the wrapping bag filled with the powder preparation with a clip or adsorbing the side surface of the wrapping bag by vacuum suction. , A device for cutting and unsealing the lower portion of the sachet disposed in the upper part of the dissolution tank, putting the preparation in the sachet into the dissolution tank, and mixing and dissolving with dilution water to prepare a dialysis solution ( No. 4-83250, JP-A-8-207915). In addition, after carrying the wrapping bag filled with the powder preparation to the upper part of the dissolution tank in the same manner as the above apparatus, once inserting the sachet into the tray, cutting and opening the upper part of the wrapping bag, and tilting the tray overturning There is also an apparatus for preparing a dialysate by introducing the powder preparation inside the sachet into a dissolution tank and mixing and dissolving with dilution water (Japanese Patent Laid-Open No. 7-265393).
However, in the apparatus using the means for directly suspending and transporting the sachet containing the powder preparation described above, the work of attaching the both ends of the plurality of sachets individually to the attachment part has a large burden on the operator, It takes a lot of time to prepare. Further, in such an apparatus, since the entire weight of the wrapping bag is applied to the suspending means, the wrapping bag may fall during the transportation. Furthermore, an apparatus having a mechanism for cutting and unsealing the lower part of the sachet to discharge the powder preparation inside is easy for the powder preparation to scatter, and the cutting mechanism used at the time of cutting and opening makes contact with the preparation. There is also a possibility that foreign matter may be mixed in.
[0009]
[Problems to be solved by the invention]
In view of the above circumstances, the present invention is free from the risk of foreign matter being mixed into the powder preparation filled in the sachet, there is no risk of the sachet falling during transport, and the burden on the medical staff It is an object of the present invention to provide a reduced and automated powder dissolving apparatus.
[0010]
[Means for Solving the Problems]
As a result of various earnest studies to solve the above-mentioned problems, the present inventors have avoided the risk of falling of the wrapped bag during transportation by transporting the wrapped bag to the upper part of the dissolution tank while being accommodated in the tray. Furthermore, the present inventors have found that the burden on the medical staff is greatly reduced by providing a plurality of trays on the conveying means, and have reached the present invention.
[0011]
That is, the present invention provides a plurality of trays that can accommodate a wrapping bag filled with a predetermined amount of powder, a transporting means for transporting the tray, an opening means for cutting and opening the upper part of the wrapping bag, A rotating means for rotating the tray to discharge the powder in the sachet arranged in the bag, a dissolving means including a dissolving tank for dissolving the powder in a liquid, and these means to be interlocked An automatic powder melting apparatus having control means capable of controlling.
[0012]
[Action]
In the automatic powder dissolving apparatus of the present invention, a sachet filled with a predetermined amount of powder is previously stored in a tray, the tray is transported to the upper part of the dissolution tank by a transport means, and the upper part of the sachet is cut. After opening, the tray is rotated to put the powder inside the sachet into the dissolution tank. The powder charged into the dissolution tank is dissolved by introducing a diluent, and a liquid having a predetermined concentration is prepared. When the tray is rotated, the bag is held by the bag holding means, so that only the powder inside is discharged to the dissolution tank without dropping the bag.
Since all the operations are automated by the control means, it does not require the manual work of medical personnel. In addition, the preparation of the solution can be completely automated by automating the placement of the sachets on the tray and the collection of the sachets after discharging the powder from the tray. Furthermore, the solution preparation can be performed in an aseptic state by providing the dissolution apparatus with a cleaning cover and providing an air cleaning mechanism in the cover. Further, by providing an identification means for identifying the type of powder in the dissolution apparatus, a plurality of types of sachets can be accommodated in one tray and simultaneously dissolved to prepare a solution.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the automatic powder melting apparatus of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an embodiment of the automatic powder dissolving apparatus of the present invention, and FIG. 2 is an explanatory view showing the automatic powder dissolving apparatus shown in FIG. 3 and 4 are explanatory views showing the operation of the powder supply means by the automatic powder melting apparatus shown in FIG. FIG. 5 is a schematic view showing another embodiment of the automatic powder dissolving apparatus of the present invention.
The automatic powder melting apparatus of the present invention includes a conveying means 1 for conveying a plurality of trays 2, an opening means 4 for cutting and opening an upper portion of a packaging bag 3 accommodated in the tray 2, and a powder in the packaging bag 3. , A rotating means 5 for rotating the tray 2, a dissolving means 6 for dissolving the powder in a liquid, and a control means (not shown) for interlocking these means.
[0014]
The conveying means 1 in the present invention is for conveying a plurality of trays 2 to be described later and moving them one by one to the upper part of the dissolution tank 61 as necessary. For example, a plurality of trays are arranged on the upper part shown in FIG. 2, a turntable 11 having an open center, a plurality of trays 2 shown in FIG. 5 that can be suspended using the same number of tray holders 121 as the trays 2, a substantially circular endless transport belt 12, etc. Can be given.
The shapes of the turntable 11 and the endless transport belt 12 are not particularly limited. However, the configuration of the entire apparatus is preferably such that a plurality of trays 2 can be arranged concentrically or elliptically, and a desired number of trays are arranged. It is a large size.
[0015]
First, an automatic powder melting apparatus shown in FIGS. 1 to 4 when the conveying means 1 is a turntable 11 will be described.
A plurality of trays 2 are concentrically arranged on the turntable 11. Each of the trays 2 can accommodate a sachet 3 filled with a predetermined amount of powder, and is sequentially moved to a powder discharge position by the rotation of the turntable 11. The turntable 11 does not rotate when solution preparation is unnecessary, and rotates so that the tray 2 is disposed at a suitable position by the turntable motor 111 or the like when solution preparation is required.
The tray 2 is a box-shaped container having an open top, and the size of the tray 2 depends on the size of the wrapping bag 3 accommodated therein, but the size of the wrapping bag 3 can be inverted in the tray 2. Preferably there is. In addition, when the powder in the sachet 3 is a preparation for dialysate preparation, a plurality of sachets 3 may be used as one set, and the shape of the tray 2 in that case is as follows. And the like that are divided into a plurality of chambers according to the shape of the bag, and those that are provided with a plurality of trays according to the shape of each package.
[0016]
The sachet 3 accommodated in the tray 2 is filled with powder, for example, a preparation for dialysate preparation used at the time of conventional dialysate preparation. When the automatic powder dissolving apparatus is used for dialysate preparation, the plurality of packaging bags may be used as one set as described above. For example, the wrapping bag 3 is specifically a case where two wrapping bags of an A-1 agent containing an electrolyte other than bicarbonate and an A-2 agent containing glucose are used as one set. However, the automatic powder dissolving apparatus of the present invention is not limited to a preparation for dialysate preparation, and can be used for dissolving any powder filled in a sachet. Here, the powder specifically refers to a powdery or granular preparation.
The material of the wrapping bag 3 that can be used in the automatic powder dissolving apparatus of the present invention can be easily cut and opened by the opening means 4 described later, and can be held for prevention of falling by the wrapping bag holding means 54 described later. It is sufficient that the conventional preparation for dialysate preparation is encapsulated, and is formed of a flexible film such as polyethylene, polypropylene, polyethylene terephthalate, or a composite film thereof, or a film having a gas barrier property added to these films. If it is a bag, it can be used without problems.
[0017]
The upper part of the bag 3 accommodated in the tray 2 needs to be cut and opened immediately before use. Therefore, the automatic powder dissolving apparatus of the present invention is provided with the opening means 4 for the bag 3. As the opening means 4, there are means for opening the packaging bag 3 while the turntable 11 is stopped and means for opening the packaging bag 3 while the turntable 11 is rotating. Examples of the former include a rotating blade 42 that moves horizontally from one end to the other end of the upper portion of the wrapping bag 3 by the motor 41 shown in FIG. 1, and a configuration in which the two rotating blades are arranged to face each other. can give. Moreover, as an example of the latter, there is one that cuts and opens the upper part of the wrapping bag 3 that is moved by the rotation of the turntable 11 with a cutter-like fixed blade or a V-shaped fixed blade.
The unsealing means 4 is arranged at a preferred position on the turntable 11, but since it is preferable that the unwrapping bag 3 be unpacked immediately before the powder in the unwrapping bag 3 is dissolved, the unwrapping bag 3 It is more preferable that the opening means 4 is arranged so that the upper part of the sachet 3 is cut open when placed near the upper part of the dissolution tank 61. Further, when a plurality of packaging bags 3 are used as one set, the opening means 4 is prepared by the number of the packaging bags 3, and if the upper portions of the respective packaging bags 3 are arranged at positions where they can be cut and opened, they can be opened. This time is preferable because it can be shortened.
[0018]
When the tray 2 of the present invention is placed on the dissolution tank 61, the upper opening of the tray 2 is directed downward by the rotating means 5 in order to put the powder in the sachet 3 into the dissolution tank 61. That is, it is rotated so that the opened upper part of the bag 3 is directed downward. Therefore, the tray 2 is rotatably held on the turntable 11 by a hinge 51 or the like. The tray 2 may be rotated in the center direction of the turntable 11 as shown in FIG. 4 or may be rotated outward of the turntable 11 although not shown. Good. The turning means 5 of the tray 2 includes, for example, a turning motor 52 provided at the lower part of the turntable 11 and a gear 53 that transmits the power of the motor 52 to the hinge 51. Further, it is possible to employ a device in which a rotation motor 52 is installed at the lower part of each tray 2 and the tray 2 is directly rotated without using the gear 53. The rotating motor 52 may be replaced with one using pressurized air or hydraulic pressure.
The turning means 5 may be provided with a wrapping bag holding means 54 for preventing the wrapping bag 3 accommodated in the tray 2 from falling out of the tray 2 when the tray 2 is turned. For example, as shown in FIG. 3, the wrapping bag holding means 54 is a claw fixed to the lower part of the turntable 11 that pierces and holds the wrapping bag 3 housed in the tray when the tray 2 is rotated. As long as the claw is fixed so as not to move with the rotation of the tray 2, the claw may be fixed to the rotating motor 52 of the rotating means 5, a part of the dissolving means 6 described later, or the like. Further, as shown in FIGS. 3 and 4, the claw may be curved in an arc shape in accordance with the turning locus of the tray 2. In the case where the sachet holding means 54 is the claw, the tray 2 needs to have a hole in a portion where the claw is inserted in advance. Other examples of the sachet holding means 54 include suction by a vacuum pad, holding by a chuck, and fixing with a pin or the like in a hole provided in advance at the edge of the sachet 3. Further, the sachet holding means 54 may be used when the sachet 3 is housed in the tray 2, or as shown in FIGS. 3 and 4, only when the tray 2 is rotated. There may be.
[0019]
Below the turntable 11, a dissolving means 6 for dissolving the powder in the sachet 3 into a liquid is installed. The dissolving means 6 includes, in addition to a dissolving tank 61 for introducing and dissolving a liquid for diluting the powder after containing the powder, a pipe 62 for supplying the liquid to the dissolving tank 61, the dissolving tank And a pipe 63 for stirring the powder and liquid in 61, and a pipe 64 for discharging the solution after the powder stored in the dissolution tank 61 is completely dissolved in the liquid. . Further, the pipe 63 is provided with a stirring pump 631, and the pipe 64 is provided with a liquid feed pump 641.
A funnel-like chute 65 may be provided on the upper part of the dissolution tank 61 so as to reliably put the powder in the sachet 3 into the dissolution tank 61. Further, an opening / closing valve that is opened only when powder is charged may be provided at the lower end of the chute 65. By the opening / closing valve, it is possible to reliably prevent the vapor in the dissolution tank 61 from being released to the upper side of the dissolution tank 61 so that the powder absorbs moisture and the absorbed powder adheres to the chute 65.
[0020]
A valve 621 for controlling the supply of the liquid is provided on the pipe 62 for introducing the liquid into the dissolution tank 61, and an amount of liquid defined by the amount of powder to be charged is supplied. The liquid is water, for example, when the powder is a preparation for dialysate preparation. The liquid supplied into the dissolution tank 61 is measured by a method using a liquid level sensor such as a float sensor, an ultrasonic sensor, a capacitance sensor, a thermistor sensor, or a supply amount using a metering pump. Or a method of integrating the supply amount using a flow meter.
[0021]
The pipe 63 bypasses the lower part of the dissolution tank 61 and the upper part of the dissolution tank 61, and a stirring pump 631 and a concentration sensor 632 are provided on the pipe 63. By providing the pipe 63, the powder and liquid in the dissolution tank 61 are discharged from the lower part of the dissolution tank 61 by the agitation pump 631, and stirred by being introduced into the dissolution tank 61 from the upper part of the dissolution tank 61. Promotes body fluid dissolution. As the stirring pump 631, a centrifugal pump using a magnetic coupling is preferably used.
Instead of stirring the powder and liquid in the dissolution tank 61 by the pipe 63, it is also possible to provide a separate stirring means. As the stirring means, a stirring rod with screw blades inserted into the dissolution tank 61 or a stirrer chip introduced into the dissolution tank 61 is magnetically stirred and rotated by a stirrer installed outside the dissolution tank. Etc.
The concentration sensor 632 is used to grasp the dissolution state of the powder in the dissolution tank 61. When using a powder containing an electrolyte, such as a preparation for dialysate preparation, a conductivity meter can be used.
[0022]
When the preparation of the solution in the dissolution tank 61 is completed, the solution in the dissolution tank 61 is discharged by the liquid feed pump 641. For example, when the prepared solution is a concentrated solution, the discharge destination of the solution is a diluting device or a tank for temporarily storing the solution before dilution, and when the prepared solution has a concentration that can be used as it is. An apparatus using the solution. When the solution can be discharged by a drop pressure, it is only necessary to provide a valve in place of the liquid feed pump 641.
[0023]
Next, an automatic powder melting apparatus shown in FIG. 5 when the conveying means 1 is an endless conveying band 12 will be described.
The endless transport belt 12 is provided with the same number of tray holders 121 as the number of trays 2 for arranging a plurality of trays 2, and the tray 2 is connected to the endless transport belt 121 via the tray holders 121. 12 is suspended. The endless transport belt 12 is rotated by the driving means 122 only when the solution preparation is necessary, and the tray 2 is arranged at a suitable position. The tray 2 is rotatably held on the tray holder 121 by a hinge 51 or the like so that the powder in the sachet 3 can be put into the dissolution tank 61.
In addition, the tray 2, the wrapping bag 3, the opening means 4, the rotating means 5, and the melting means 6 are also applied to the endless conveying belt 12 in the same manner as the conveying means 1 is the turntable 11. However, when the bag holding means 54 provided in the rotating means 5 is the above-described claw, the claw may be fixed to each tray holder 121.
[0024]
The operation of the automatic powder dissolving apparatus of the present invention will be described with reference to FIGS. 1 to 4 in which a dialyzer is prepared using a turntable 11 as the conveying means 1. Even when the transport means 1 is the endless transport belt 12, the apparatus of the present invention can be moved by the same operation.
The automatic powder melting apparatus of the present invention is not limited to the following examples, and it is possible to provide accessory parts used in conventional melting apparatuses.
[0025]
First, among the plurality of trays 2 arranged on the turntable 11, the inner tray 21 accommodates the packing bag 31 filled with the A-1 agent containing an electrolyte other than bicarbonate, and the outer tray 22. Inside, the sachet 32 filled with the A-2 agent containing glucose is accommodated. This operation may be performed manually by a medical worker or may be automatically accommodated using an industrial robot or the like. Here, on the turntable 11, the accommodation status of the packaging bag 3 in the tray 2 and the type of the packaging bag 3 accommodated are identified, and when the packaging bag 3 is not properly stored in the tray 2, You may provide a package identification means which issues an alarm when the wrong type of package 3 is accommodated.
When preparing the solution after the wrapping bag 3 is installed, the turntable 11 is first rotated to move the tray 2 to the position of the opening means 4 (FIG. 3). Here, the upper portions of the wrapping bags 31 and 32 are simultaneously cut and opened by the opening means 43 and 44. Since the wrapping bag 3 is a soft container, a means for fixing the upper portion of the wrapping bag 3 may be separately provided so that it can be easily cut and opened. Examples of the fixing means include a clip for holding the upper portion of the wrapping bag 3, and the fixing means can be fixed at a position where the opening means 4 is provided or can be fixed to the tray 2.
[0026]
After cutting and opening the sachet 3, the trays 21 and 22 containing the sachets 31 and 32 are transferred to a chute 65 provided on the upper part of the dissolution tank 61 by the rotation of the turntable 11. Thereafter, the tray 2 is rotated inward by the rotating means 5 and at the same time, the packaging bags 31 and 32 are placed in the tray 2 by arcuate claws fixed to the upper end of the chute 65 as the packaging holding means 54. The upper opening of the sachets 31 and 32 is completely turned downward, and the rotation of the tray 2 is stopped. The preparation for dialysate preparation in the sachets 31 and 32 passes through the chute 65 and is put into a dissolution tank 61 provided below the chute 65.
When the discharge of the powder in the sachets 31 and 32 is completed, the tray 2 is rotated in the reverse direction by the rotating means 5 so as to return to the original position again. At this time, the tray 2 can be further rotated to the outside of the turntable 11, and the package 3 in the tray 2 can be dropped to the package collection unit provided outside the track of the turntable 11. In addition, it is possible to provide a mechanism for automatically collecting the empty bag 3 using an industrial robot or the like. The time of collection of the sachet 3 is an apparatus such as after the powder has been put into the sachet 3 and immediately before the installation of a new sachet 3 or after the adjacent tray 2 has been transferred to the upper part of the dissolution tank for solution preparation. A suitable time is selected in view of the structure. In addition, after discarding the empty wrapping bag 3, a new wrapping bag 3 is also appropriately stored using an industrial robot or the like at a suitable time.
[0027]
A predetermined amount of dilution water is introduced into the dissolution tank 61 from the pipe 62 in advance. Therefore, stirring using the pipe 63 is started immediately after the preparation for dialysate preparation is charged. Stirring is continued until the concentration sensor 632 provided on the pipe 63 detects that a dialysate having a predetermined concentration has been prepared. When the dialysate in the dissolution tank 61 is prepared to a predetermined concentration, the stirring operation is stopped, the dialysate is discharged from the pipe 64, and further sent to the diluting device.
[0028]
The above operations are controlled by control means (not shown) so that each means can be linked. Therefore, according to the automatic powder dissolution apparatus of the present invention, the dialysate preparation can be automatically performed from installation of the bag 3 to disposal. In addition, the operation of storing, opening and discarding the sachet 3 and the dialysate preparation operation by the dissolving means 6 are performed in parallel with each other, so that the dialysate can be prepared in a shorter time.
[0029]
In the automatic powder dissolving apparatus of the present invention, the entire apparatus is covered with the cleaning cover 7 so that the solution can be prepared in a sterile state. In this case, accommodation and disposal of the sachet 3 can be performed while preventing entry of bacteria by providing an air curtain or the like.
[0030]
【The invention's effect】
In the automatic powder melting apparatus of the present invention, the packaging bag filled with the powder is transported in a state of being accommodated in the tray, so that the packaging bag is not likely to fall during transportation. Moreover, since there is no possibility that a load will be applied to the packaging bag even during the preparation of the solution, it can be safely stored without damaging the packaging bag. The medical staff simply stores the bag in the tray, and the installation operation is simple.
Further, in the above apparatus, since the cutting and unsealing of the wrapping bag is performed at the upper part of the wrapping bag, there is no possibility that the powder is scattered, and there is no possibility that foreign matter is mixed in the powder when the opening means is in contact with the powder. . Further, since the cutting and opening of the sachet is performed immediately before the preparation of the solution, moisture absorption of the powder and adhesion of the moisture absorbed powder to the inside of the apparatus can be prevented.
The powder automatic dissolving apparatus of the present invention is controlled by the control means, and the solution preparation is automatically performed by controlling the feeding and unsealing of the packing bag, the charging of the powder in the packing bag and the dissolution of the powder. The work burden on the person can be greatly reduced. In this apparatus, if the packaging and storing operations are automated, the solution preparation operation becomes fully automatic, and the solution preparation can be performed more easily and safely. Furthermore, by arranging such an apparatus in the cleaning cover, the solution can be prepared in an aseptic condition, and a safer solution can be provided.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of an automatic powder dissolving apparatus of the present invention.
FIG. 2 is an explanatory diagram showing a case where the automatic powder melting apparatus shown in FIG. 1 is viewed from above.
FIG. 3 is an explanatory view showing the operation of the powder supply means by the automatic powder melting apparatus shown in FIG. 1;
FIG. 4 is an explanatory view showing the operation of the powder supply means by the automatic powder melting apparatus shown in FIG.
FIG. 5 is a schematic view showing another embodiment of the automatic powder dissolving apparatus of the present invention.
[Explanation of symbols]
1 Transport means
11 Turntable
12 Endless transport belt
2 trays
3 wrapping bags
4 Opening means
5 Rotating means
54 Packaging means
6 Melting means
61 Dissolution tank

Claims (1)

A plurality of trays capable of containing a sachet filled with a predetermined amount of powder, transport means for transporting the plurality of trays and moving them one by one to the upper part of the dissolution tank one by one, if necessary, An unsealing means for cutting and unsealing the upper part, a turning means for turning the tray to discharge the powder in the sachet disposed in the tray when the tray is disposed in the upper part of the dissolution tank, and dissolving means comprising a dissolving tank for dissolving the powder in a liquid, Ri Na and a control means capable of controlling so as to interlock these means, the rotating means, the tray only when the tray rotates Nail which is provided with a wrapping bag holding means for preventing the wrapping bag contained in the tray from falling out of the tray, and the wrapping bag holding means pierces and holds the wrapping bag housed in the tray when the tray rotates. , and the that Do with holes drilled in the portion where the pawl is inserted in the tray Body automatic dissolution apparatus.

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