The iWorx newsletter is a FREE monthly publication dedicated to sharing teaching laboratory techniques and other useful information with educators in the fields of Anatomy and Physiology. We will also be sending you technical information and info on new developments at iWorx that we feel may be of use to you in your teaching and research activities.

About iWorx
iWorx has everything you need to add excitement and distance learning to any physiology teaching program. Our products include data acquisition hardware, professionally -developed physiology courseware, innovative web tools, and a full selection of transducers, cables, front ends and accessories.

iWorx/CB Sciences
One Washington St.
Suite 404
Dover, NH 03820
P: 800-234-1757
F: 603-742-2455
info@iworx.com

© 2005 CB Sciences, Inc. Patent pending. iWorx is a trademark of CB Sciences, Inc.

July 2006

  Experiment:  Ventilation and Oxygen Saturation Levels
  Part 2 (continued from June Newsletter)

This experiment is a continuation of Experiment HS-6: Ventilation and Oxygen Saturation Levels, which is available here.

Breathing is a function that can be controlled either voluntarily or involuntarily. During exercise, the autonomic nervous system adjusts the depth and rate of breathing during the different segments of the exercise routine. The person performing the exercise routine can also voluntarily change his or her breathing pattern, which influences the autonomic nervous system and leads to additional changes in heart rate, circulation, muscle tension, and many other bodily functions that are unseen. The voluntary breathing patterns used in this experiment will alter the frequency and volume of air exchanged in the lungs leading to changes in the oxygen saturation level of the blood and the heart rate.

In this experiment, students will perform different abdominal and thoracic breathing techniques and demonstrate the effects of these breathing patterns on oxygen saturation levels in the blood and on heart rate as measured by a pulse oximeter. The subject’s breathing rate will be also measured using a respiration monitor and used in conjunction with the other parameters to demonstrate the integration of the cardiovascular and pulmonary systems.

Download high resolution  press optimized or low resolution screen optimized Oxygen Saturation Levels and Ventilation Experiment Part 2 (PDF file).

Tech Note:  The PO2-100D Pulse Oximeter and RM-204
Respiration Monitor

The PO2-100D Pulse Oximeter is a simple device that can, easily and non-invasively, measure the oxygen saturation levels of blood through a sensor that clips over the end of the subject’s finger or toe.  The sensor functions by emitting two wavelengths of light, detecting the absorbance of each wavelength by the oxygenated and deoxygenated forms of hemoglobin, using the programming in the unit to determine the ratio of the two forms of hemoglobin, and expressing the level of oxygen saturation in the blood as a percentage. 

The RM-204 Respiration Monitor is a transducer used to measure of relative depth and frequency of breathing in a human subject during experiments where it is impractical to monitor breathing with a spirometer.  The RM-204 permits breathing rates and relative amplitudes to be measured easily, accurately, and unobtrusively while the subject performs another task like a psychological test. 

Learn more about the PO2-100D Pulse oximeter from this Tech Note. 

Learn more about the RM-204 Respiration Monitor from this Tech Note.

PO2-100D Pulse Oximeter

RM-204 Respiration Monitor

iWorx is offering a 20% discount on the PO2-100D Pulse Oximeter and is available for just $795 (list price $995) until December 31, 2006.  Customers in the U.S. and Canada can order directly online.

PO2-100D

Pulse Oximeter and Plethysmography Sensor

$995

$795

  Users Area: Log-in or Register for Access to LabScribe
  Installers, Lab Manuals, and Settings Files.

Whether you plan to download any of the experiments announced in recent editions of the iWorx Newsletter or a new copy of the LabScribe Installation CD, you need a password and an ID to access the download sites for these items. 

To register for a new ID and password, please go here.   After you receive confirmation that user account has been activated, return to the same site and click on the Enter link. 

Registered users can log-in here.

To download screen or press optimized copies of the latest lab experiments and Tech Notes published in the iWorx Newsletters, go here and select the lab experiment of interest.

If you plan to use any of the experiments or manuals announced in recent editions of the iWorx Newsletter, you should obtain a copy of the settings group used to configure LabScribe for these experiments.  To download the settings file, right click here and choose "Save Target As" in the Internet Explorer browser or "Save Link As" in the Firefox browser.  Save the file in your LabScribe Folder.  When you launch LabScribe, the settings group will be available from Load Group command in the Settings menu.

Learn more about lungs, blood gases, pulse oximetry, and hemoglobin by going to our external Web resources page.

On this page we have also accumulated a host of links to informative, external physiology Web sites and conveniently categorized them into major sub categories for easy reference.

New iWorx 2006 Catalog

iWorx 2006 Physiologist's Toolbook is now available in print and on a new interactive CD.   The catalog contains full descriptions and photographs of iWorx full line of integrated physiology teaching kits, Web tools, and courseware, as well as the complete range of advanced systems and components for physiology research. 

The new interactive CD version provides links to iWorx ecommerce Web site for easy ordering in North America.

Request your copy today!

Clearance Items

iWorx has a large supply of new and trade-in items at up to 70% discount.  Also check with us about trade in allowances for your older Powerlab or Biopac equipment.  Customers in the U.S. and Canada can order directly online. See specials