Infusion Pump Blockage Notification Using Force Sensors

Background: Automated, wearable pump systems continuously deliver vital drugs to the user. A crucial design consideration for such devices is a sensor that will detect life-threatening blockages in the system and alert the user in time to take appropriate steps to correct the problem or minimize any negative effects. The sensor must be small and thin, in keeping with the size and weight requirements of the device.

Solution: Incorporating a small sensor into a drug-delivery pump

When a blockage occurs in a portable, wearable pump like the one pictured, the tubing expands. A FlexiForce™ custom force sensor incorporated where the tubing meets the housing can detect this expansion by monitoring the force applied to the sensor by a section of the tubing. The sensor can trigger an alarm to alert the user if this expansion is detected. The same principles of operation can apply in infusion pumps and devices designed for operation by medical professionals in settings such as hospitals, hospices, and home-care. FlexiForce is ideal thanks to its light weight, low power requirements, and ability to be customized.

Benefits of FlexiForce™ Sensors

• Ultra-thin sensor construction and flexibility means minimal interference/disturbance to normal action
• Accurate response gives your customers and end users confidence in the performance of your product
• Knowledgeable, experienced technical staff help you develop the most effective, economical sensor based on your specific requirements. All manufacturing takes place at ISO 9001 compliant & 13485 registered Tekscan headquarters.
• 100% factory inspection ensures your sensors meet established performance specifications

Getting Started with FlexiForce Sensors

FlexiForce sensors are available off-the-shelf in packs of four or eight for testing and prototyping. Visit our online store to place an order, or contact us to discuss customization options with one of our engineers.