| Basic
requirements for a leak tester |
|
How BlisterScan outperforms these basic
requirements
|
|
| Must be suitable for both
tablets and capsules. |
|
The BlisterScan can detect a leak in any format of blister
pocket regardless of the shape of the pocket or whether the contents
are tablets or capsules. |
Must detect leaks in both
thermoformed and
cold-formed blisters. |
|
The blisterpacks are supported on a nest so that it
does not matter whether the blisterpack is thermoformed or cold formed. |
| Must detect holes down
to 25 microns. |
|
The BlisterScan is an extremely sensitive device and
is capable of detecting holes down to 10 microns. |
| Must be simple to calibrate. |
|
There is a single sensing head which simplifies calibration.
The sensor is part of a self-test mechanism which verifies that the
sensor system is working before each individual test. |
| Test results must be totally
objective. |
|
The operator has no influence on the results obtained
with BlisterScan. A PASS result is indicated on the screen by a green
pocket and a FAIL result is indicated by a red pocket. These colours
can be changed to facilitate operators with colour blindness. These
screen results are supported by data which is stored in encrypted
form in the database. Each test result is given a unique
identification number. |
Must conform to
21 CFR Part 11. |
|
The BlisterScan software has been written to fully comply with 21 CFR Part 11. A full
validation package is available. |
| Ideally, test all blisters
from a single seal station at one time. |
|
The large format size of the BlisterScan allows a complete
web width to be tested at one time. This can be custom designed to
suit a particular web formation where the standard device is not suitable. |
| Suitable for production
or laboratory environments. |
|
The exterior surfaces of the BlisterScan are stainless
steel and comply with GMP requirements. |
| Must be reliable and simple
to use. |
|
The test is controlled from a user-friendly touch screen.
|
The test should be
non-destructive so all the product can be re-used. |
|
During the test there is no contact with any contaminating
substance. Packs which pass can be added to the production batch.
The product from failed packs can be deblistered and repackaged. |
Must be possible to
print out the results. |
|
The BlisterScan can be connected to a parallel printer
port. There are also connection ports for storage devices such as
floppy disc, CD Rom, etc. |
| Set up and changeover
from one pack to another must be simple. |
|
Set up: Batch details are entered on the screen and
can be verified before the test is run. A database of the user's blister
configurations is installed n the system before delivery to allow
fast set-up. Before running the test, the BlisterScan displays a picture
of the blisterpack from its database so that the operator can confirm
that the correct blister is being tested.
Changeover: The only change parts required are 2 product nests. These
can be fitted in less than 1 minute. The nests are provided with a
unique identification code which is identified by the scanner and
confirmed on-screen. The identification number is also the trigger
for the blister test information to be recalled from the database. |
| The apparatus must be
bench-mounted for laboratory use or mobile for production use. |
|
The BlisterScan is available both as a bench-mounted
or a mobile unit. |
Conclusion: The BlisterScan
outperforms the requirements for a production or laboratory leak tester
in terms of quality, performance and flexibility. It is simple to
operate and conveniently mobile. |