Packaging Method to Maintain Signal to Noise Ratio in Implantable Sensors
- Summary
- Researchers at Purdue University have developed a packaging method to reduce drift in implantable pressure sensors. The approach encloses the sensor in a medical balloon that is filled with silicone oil and sealed with UV epoxy around a polyimide cable that carries the sensor. The sensor is isolated from bodily fluids while the balloon and oil transmit the surrounding pressure to the sensor. This method provides easier implementation, low cost, and increased versatility in comparison to currently available technologies in the market place.
- Technology Benefits
- Easier implementation Lower cost Increased versatility
- Technology Application
- Medical device manufacturersPhysiciansHospitals
- Detailed Technology Description
- Babak ZiaieZiaie Biomedical Microdevices LaboratoryPurdue Electrical and Computer Engineering
- Countries
- United States
- Application No.
- None
- *Abstract
-
- *Background
- Baseline and sensitivity drift in implantable pressure sensors has been a major obstacle to success of many implantable pressure-sensing systems. Various efforts in the past 40 years in reducing this drift have been unsuccessful. The major source of drift comes from the absorption of water and bodily fluids into packaging material used to encapsulate the sensor. The materials often used are polymeric and readily absorb liquid resulting in swelling and drift.
- *IP Issue Date
- None
- *IP Type
- Provisional
- *Stage of Development
- Process validation in lab
- *Web Links
- Purdue Office of Technology CommercializationPurdue Innovation and EntrepreneurshipBabak ZiaieZiaie Biomedical Microdevices LaboratoryPurdue Electrical and Computer Engineering
- Country/Region
- USA
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