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The Ultimate Electronic Bowie Dick Test

The Ultimate Electronic Bowie Dick Test

- Get peace of mind with SteriSense®

SteriSense® is a reliable and cost efficient Electronic Bowie Dick Test that provides you with verification of critical sterilization parameters beyond that of chemical indicators.

Introduction to the Bowie Dick Test

The Bowie Dick test, also referred to as an air removal test or steam penetration test, is used for daily routine control of steam sterilizers (autoclaves) to verify that they perform in accordance with ISO 17665.

A safe and reliable test is important to use, as proper air removal is crucial for the performance of the steam sterilizer. Any air left in the sterilizer can impact how the steam penetrates the load and thereby the sterilization of the instruments. The Bowie Dick test is commonly used in Central Sterile Services Departments (CSSD) as part of the daily morning routine before releasing the steam sterilizer for use.  

Peace of mind with SteriSense®

SteriSense is a brand new and innovative Electronic Bowie Dick Test (air removal test) that is unmatched in accuracy, performance and reliability. Our Bowie Dick test provides far more insight into critical sterilization parameters than previously possible, ensuring patient safety. Unlike traditional chemical indicators, where you subjectively decide according to a change in color, SteriSense also offers an accurate report that eliminates any guess work. 

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The SteriSense® Measuring Device Technical Specifications SteriSense® Single Reader Station
The SteriSense® Measuring Device
Process Challenge Device (PCD)

The PCD has been specially designed to reflect the reference method originally developed by Dr. J. Bowie and J. Dick in the 1960’s. The function of the PCD is to “challenge” the steam penetration of a steam sterilizer in accordance with EN ISO 11140-4. Between tests, the PCD needs to be cooled down to ambient temperature (approx. 90 minutes), which is why it is a big advantage that the device can easily be disassembled from the body (logger) and be changed with a spare. Due to the PCD design, SteriSense is also able to check for the presence of non-condensable gases (NCG).


SteriSense® Triple Sensor

1.  Temperature sensor that measures inside the PCD
2.  Temperature sensor that measures the ambient temperature in the sterilization chamber
3.   Pressure sensor that measures the ambient pressure value within the chamber
 

SteriSense® Data Logger

The SteriSense data logger contains a battery with enough capacity to run 1,000 test cycles of 30 min. The data logger itself is based on Ellab’s 3rd generation of the well-known TrackSense® Pro data loggers.

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Technical Specifications
Technical Specifications


SteriSense Unit

ISO Standard Compliance:

11140-4:2007 type B1, B2 and B3 at 134 °C

3rd Party Test Institute:

SAL GmbH

Type of Sterilizers:

Steam Sterilizers / Autoclaves qualified for sterilization at +134 °C
according to EN 285 (volume larger than 60 L) and EN ISO
17665 (moist heat autoclaves)

Measuring Principle:

Piezoresistive / Electrical Resistance

Sensor Type:

Strain Gauge / Pt1000

Temperature Measuring Range:

0 to +140 °C (Calibrated +25 to +140 °C)

Temperature Accuracy: +25 to +140 °C:

± 0.05 °C

Pressure Measuring Range:

10 mBar to 6 Bar

Accuracy:

± 0.25% Full Scale (± 15 mBar)

Logger Housing Material:

316L Stainless Steel

PCD Housing Material:

PEEK

Operating Temperature:

-20 to +150 °C

Operating Pressure:

0.001 mBar to 10 Bar ABS

Diameter:

25 mm

Length:

125 mm including PCD (30 mm)

Weight with Battery:

240 g

Memory Capacity:

40,000 Data Points / 10,000 Samples

Minimum Sample Rate:

1 Second

Maximum Sample Rate:

24 Hours

Intrinsically Safe:

Ex II1GD ia IIC T3 Ga, -55 °C ≤ Tamb ≤ +105 °C

Time Accuracy:

± 5 Seconds per 24 Hours

Battery:

TSP 150L Battery

Expected Battery Lifetime:

1,000 Tests / 500 Hours (at +134 °C with Sample Rate of 1 Sec)


If equipment is used in ATEX environment,
special conditions for safe use are stated in ATEX
certificates
, section 17 must be considered.

SteriSense® Single Reader Station
Fast and Secure Data Transmissions

The highly compact reader station is used to start and read the SteriSense data logger. Much like the data logger, the reader station is based on Ellab’s 3rd generation of the TrackSense Pro reader stations, which enables fast and secure data transmissions.

SteriSense® vs. Traditional Chemical Indicators

Unlike traditional chemical indicators, where you subjectively decide according to a change in color, SteriSense provides a much more in-depth verification of critical sterilization parameters. The SteriSense software also automatically generates and stores printable reports, ensuring electronic documentation of the process.

In summary, by using the SteriSense for full parametric release you gain the following advantages:

  • Economically efficient with high test volumes
  • Improved safety - objective results that eliminate the risk of false or grey zone readings
  • Additional critical information - checks performed according to ISO 17665
  • Easy to store, retrieve and compare the data from a database - convenient and safe method that eliminates the need for guessing
  • Time stamps included to increase reliability

SteriSense® vs. Other Electronic Bowie Dick Test Devices

SteriSense is by far the most compact Electronic Bowie Dick Test on the market. The Process Challenge Device (PCD) has the unique feature of being replaceable, which allows the user to run several Bowie Dick test cycles in a sequence with very limited need for cooling. This reduces the amount of time and investments spent on unnecessary backup devices. The replaceable PCD feature is patent pending.

  • Ultra-compact size
  • Highly user-friendly software
  • Advanced sterilization analysis
  • Environmentally friendly process
  • Up to 1,000 test cycles between each calibration
ISO 11140-4 Compliant
ISO 11140-4 Compliant

- Tested by a 3rd Party Institute

Get in-depth verification of critical parameters and save time by changing the process challenge device between test cycles.

Try it out First
Try it out First

We offer the possibility to test whether the Electronic Bowie Dick test, SteriSense®, fulfils your needs prior to buying.

Different Solutions for Different Customer Needs
Different Solutions for Different Customer Needs

- SteriSense® is designed with your needs in mind

Purchase or subscription? We have made it easy for you to choose between our 3 options. 

Try it out First
Try it out First

We offer the possibility to test whether the Electronic Bowie Dick test, SteriSense®, fulfils your needs prior to buying.

User-friendly and Comprehensive Software

SteriSense is extremely easy to use and requires only little training to operate. With just a single click in the software, the SteriSense measuring device will start to measure and record data. Once the Bowie Dick Test Program has ended, the device is simply placed back in the reader station where the software automatically processes the data and provides a test result. All test results are saved electronically and can be presented in accessible reports with audit trails – simple and easy!

 

Absolute Compliance

When compared to traditional methods, the SteriSense provides far more insight into critical sterilization parameters than previously possible. The standard report showcases all the results from the optional ‘checks’ performed by the software. When using the standard settings, a routine control test will be performed in accordance with EN ISO 17665.

SteriSense has been tested by a 3rd party certified test institute to comply with the reference method originally developed by Dr. J. Bowie and J. Dick, using a test procedure described in EN ISO 11140-4.

How to use the SteriSense® System for a Bowie Dick Test Program:
Step 1
Step 1

Place the SteriSense measuring device in the reader station and open the SteriSense Software

Step 2
Step 2

Start the logger by clicking on “Start” and edit the sample number if necessary

Step 3
Step 3

Place the SteriSense measuring device inside the steam sterilizer and start the Bowie Dick Test Program

Step 4
Step 4

After the test program has completed, place the SteriSense back in the reader station to get the result

Analyzing Test Result and Generating Reports

The result of the test will either pass or fail, which will appear on the screen shortly after the data has been processed. The test results will be stored in the software and be included in an automatically generated PDF report.

When analyzing data, the SteriSense software can perform the following “checks”:

EN ISO 17665

  • Phase detection (default)
  • Holding time (default)
  • Equilibration time (default)
  • Maximum temperature deviation (default)

EN ISO 11140-4

  • Air removal phase (optional)
  • Heating phase (optional)
  • Drying phase (optional)


Advanced Check

  • Dilution factor calculation (optional)

 

Utilize the Full Potential of SteriSense® with ValSuite Medical Software

You have the option of utilizing SteriSense to perform even more complex analysis than a simple routine Bowie Dick test control, like:

✔  Be a part of validation studies with Ellab TrackSense Data loggers
✔  Use for batch control during sterilization processes
✔  Perform a vacuum leak test
✔  Perform a check after the sterilizer has undergone service

Purchase or Subscription?
Purchase or Subscription?

We have made it easy for you to choose between our 3 options. 

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