JPH0618211U - PTP drug filling amount inspection device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention can be installed in an existing blister pack device, and the drug filling amount of each capsule on the sheet can be set without the need for a dedicated process for inspection or a specialized person. Inspect all at once, fast and accurately. [Structure] While illuminating one surface of a PTP sheet 6 by an illuminating device 2, the PTP sheet 6 is made visible by a television camera 3.
After the PTP sheet 6 is photographed from the other surface of the sheet 6, the image photographed by the television camera 3 is processed by the image processing device 4 to be filled in each capsule 5 on the PTP sheet 6. This is detected when the drug is deficient.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a PTP drug filling amount inspection device for inspecting whether or not the drug amount in each capsule placed on a PTP sheet is insufficient.

[0002]

[Prior art]

 When making capsule PTP sheets, after the capsules are supplied on the PVC sheet, an inspector visually inspects whether or not the drug in the capsules is insufficient so that each capsule does not have an insufficient filling amount. There is.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional drug deficiency inspection method, since it is inspected by an inspector whether or not each capsule on the PTP sheet is deficient in the drug, it is difficult to improve the accuracy of the inspection, and it is difficult for the expert to know. There was a problem that we had to secure the required inspectors.

Therefore, it may be considered to inspect the filling amount of each capsule before the PTP sheet process, but if such a method is adopted, a dedicated inspection device for inspecting the filling amount of each capsule other than the production process is taken. There is a problem that is needed.

In view of the above-mentioned circumstances, the present invention can be installed in an existing blister pack device, and separately fills each capsule with a drug on a sheet without requiring a dedicated inspection process or a specialized person. It is an object of the present invention to provide a drug filling amount inspecting device for PTP, which can inspect the amount at once and at high speed and accurately.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a drug filling amount inspection device for PTP according to the present invention is an illumination device for illuminating a PTP sheet to be inspected from one side, and the PTP sheet illuminated by the illumination device. When a photographing device for photographing the PTP sheet from the other side of the PTP sheet and an image photographed by the photographing device are processed and the medicines filled in the capsules on the PTP sheet are insufficient. And an image processing device for detecting this.

[0007]

[Action]

 In the above structure, while the illumination device illuminates one surface of the PTP sheet, the imaging device captures the PTP sheet from the other surface of the PTP sheet, and then the image processing device captures the image with the imaging device. When the processed image is processed and the amount of the drug filled in each capsule on the PTP sheet is insufficient, this is detected.

[0008]

【Example】

 FIG. 1 is a front view showing an embodiment of a PTP drug filling amount inspection device according to the present invention, and FIG. 2 is a side view of the PTP drug filling amount inspection device.

The PTP drug filling amount inspection device shown in these figures includes an illuminating device 2 provided in a blister pack device 1, a television camera 3, and an image processing device 4, so that a drug in the middle of transportation is While illuminating the PTP sheet 6 on which the plurality of filled capsules 5 are placed from below with the illumination device 2, the TV camera 3 photographs the PTP sheet 6 from above, and the image signal obtained by this photographing operation is obtained. The image processing device 4 inspects whether or not the medicine filling amount of each capsule 5 on the PTP sheet 6 is sufficient.

The illuminating device 2 is disposed below the conveyor for conveying the PTP sheet 6, and two illuminating cases are disposed inside the illuminating case 7 as shown in the partially cut side view of FIG. Rod-shaped light source (only one is shown in the figure) 8 and two arc-shaped reflectors (only one is shown in the figure) 9 for reflecting light from each of these rod-shaped light sources 8 respectively. The cross-section has a V shape that reflects the light from each of the arc-shaped reflection plates 9 and the light from each of the rod-shaped light sources 8 and reflects the light toward the opening 11 formed in the upper portion of the lighting case 7. It is equipped with a plate-shaped reflector 10 and a shading correction plate 12 that makes the light reflected by the plate-shaped reflector 10 uniform, and turns on each rod-shaped light source 8 to convert the light obtained by this into an arc-shaped form. With the reflector 9 and the plate-shaped reflector 10, After the reflection, the shading correction plate 12 makes uniform light, which is emitted from the opening 11 and illuminates the PTP sheet 6 conveyed on the conveyer conveyor from below.

Further, the television camera 3 is arranged above a conveyer conveys the PTP sheet 6, the PTP sheet 6 is photographed by the lighting device 2, and the photograph is taken. The image signal obtained by the operation is supplied to the image processing device 4.

The image processing device 4 takes in an image signal output from the television camera 3 and binarizes the image signal with a threshold value preset for each capsule to generate a binarized image. Based on this binarized image, it is determined whether or not the amount of the drug filled in each capsule 5 placed on the PTP sheet 6 is insufficient.

As a result, the amount of the drug filled in each capsule 5 placed on the PTP sheet 6 is not insufficient, and the image from the television camera 3 to the image shown in FIG. When a signal is output and the density cross section of each capsule 5 indicated by this image signal is as shown in FIG. 4 (b), the image obtained by binarizing the image signal as shown in FIG. 4 (c) It is determined that the respective capsules 5 have a uniform concentration with each other, and the medicines filled in the capsules 5 placed on the PTP sheet 6 this time are not insufficient.

Further, one of the capsules 5 placed on the PTP sheet 6, for example, an empty capsule 5 is the second one from the upper left, and the other capsules 5 are filled with the empty drug. When the amount is not insufficient, the empty capsule 5 is not found even if the image shown by the image signal output from the television camera is viewed as shown in FIG.

However, since the density cross section of each capsule 5 indicated by this image signal is as shown in FIG. 5B, the image signal is binarized with the threshold value 150 as shown in FIG. 5C. As is clear from the image obtained, the amount of drug in the second capsule 5 from the upper left is insufficient.

Further, as shown in FIG. 6A, when the same density cross section as in FIG. 5B is obtained, if binarization is performed with a threshold value of 170, a binarized image shown in FIG. 6B is obtained. As can be seen from this binarized image, the drug amount in the second capsule 5 from the upper left is insufficient.

Further, as shown in FIG. 7A, in the case of the same density cross section as in FIG. 5B, if binarization is performed with the threshold value 180, the binarized image shown in FIG. 7B is obtained. As can be seen from this binarized image, the drug amount in the second capsule 5 from the upper left is insufficient.

Further, as shown in FIG. 8A, in the case of the same density cross section as in FIG. 5B, if binarization is performed with the threshold value 185, the binarized image shown in FIG. 8B is obtained. As can be seen from this binarized image, the drug amount in the second capsule 5 from the upper left is insufficient.

As described above, in this embodiment, while the PTP sheet 6 being conveyed is illuminated by the illumination device 2 from below, the television camera 3 photographs the PTP sheet 6 from above, and the PTP sheet 6 is obtained by this photographing operation. Since the image signal thus processed is processed by the image processing device 4 to check whether or not the drug filling amount in each capsule 5 placed on the PTP sheet 6 is insufficient, the existing blister is used. It can be installed in the pack device 1 and can inspect the drug filling amount of each capsule 5 on the sheet 6 at once, at high speed and accurately, without requiring a dedicated inspection process or specialized personnel. be able to.

[0020]

[Effect of device]

 As described above, according to the present invention, the drug filling amount of each capsule on the sheet can be installed in the existing blister pack device and without the need for a separate inspection-dedicated process or specialized personnel. Can be inspected at once, at high speed and accurately.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a drug filling amount inspection device for PTP according to the present invention.

FIG. 2 is a side view of the drug filling amount inspection device for PTP shown in FIG.

FIG. 3 is a partially cut side view showing a detailed configuration example of the lighting device shown in FIG.

FIG. 4 is a schematic diagram showing a processing example of the PTP drug filling amount inspection device shown in FIG. 1.

5 is a schematic diagram showing a processing example of the PTP drug filling amount inspection device shown in FIG. 1. FIG.

FIG. 6 is a schematic view showing a processing example of the PTP drug filling amount inspection device shown in FIG. 1.

FIG. 7 is a schematic diagram showing a processing example of the PTP drug filling amount inspection device shown in FIG. 1.

FIG. 8 is a schematic diagram showing a processing example of the PTP drug filling amount inspection device shown in FIG. 1.

[Explanation of symbols]

 1 Blister pack device 2 Lighting device 3 Television camera (photographing device) 4 Image processing device 5 Capsule 6 PTP sheet

Claims (1)

[Scope of utility model registration request] 1. An illuminating device for illuminating a PTP sheet to be inspected from one surface, an imaging device for imaging the PTP sheet from the other surface of the PTP sheet illuminated by the illuminating device, and the imaging device. The image captured by the device is processed to generate the P
An apparatus for inspecting a drug filling amount for PTP, comprising: an image processing device that detects when the drug filled in each capsule on the TP sheet is insufficient.