P10022: Transcutaneous signal transmission for VAD


Project Summary Project Information

The objective of the Transcutaneous Signal Transmission project was to develop a system that could transmit signals to and from a Left Ventricular Assist Device (LVAD) with a decreased amount of physical wiring through the skin. The original design of the LVAD called for a percutaneous cable consisting of 23 wires with a diameter of 8mm. Through the senior design process 16 wires were eliminated, decreasing the cable diameter to 2.7 mm. This provided 370% improvement in flexibility and less skin penetration, minimizing the risk of infection. The number of percutaneous wires was reduced by changing the placement of components as well as implementing a communication protocol, SPI, capable of transmitting and receiving the required signals through fewer wires. It was found that all signals could accurately be transmitted through the system except for the motor speed command signal. In addition, a transcutaneous energy transmission system was developed in order to further reduce required wires by wirelessly delivering power. The power efficiency was found to be 10% over the system and 27% over the coils.

Project Name
Transcutaneous signal transmission for VAD
Project Family
Biomedical Device Development
Assistive Device and Bioengineering
2009-Fall & 2009-Winter
Primary Customer
Dr. ShanBao Cheng / Dr. Steven Day
Poster Conference Paper
View the poster in PDF or PowerPoint.
View the paper.
The Final Product


More Drawings and Schematics

Public Documents & Project Information

Planning Design Process Documents Major Publications

Project Readiness Package

Project Data Sheet

Work Breakdown Structure

SD I Project Schedule

SD II Project Schedule

Project Execution vs. Plan

Risk Assessment with Evaluation

Team Values and Norms

Staffing Requirements

Intellectual Property Considerations

Customer Needs

Customer Needs Actually Met (SD 2)

Target Specifications

Target Specifications Actually Met (SD 2)

Product Concepts

Bill of Materials (SD 1)

Electronics Theory of Operation, Pseudo-code, and Feasibility (SD 1)

Action Items

Test Plan (SD 1)

Test Plan & Results (SD 2)

Success & Failure Evaluation

Project Debriefing

Technical Conference Paper

Final Presentation

Project Poster

Concept Design Review Packet (SD 1)

Detailed Design Review Packet (SD 1)

Final Design Review Packet (SD 1)

Supporting Documentation

Primary Components - Data Sheets

Useful Technical Papers