A conductance telemetry system for implant blood pumps
DESCRIPTION (provided by applicant): An ideal permanent ventricular assist
system (VAS) or total artificial heart (TAH) will not include tubes or wires
passing through the skin. This proposal describes development of a telemetry
system capable of providing the bi-directional communications between implanted
and external components required for safe operation.
The ECG signal is a naturally occurring form of telemetry. The voltages sensed
by the ECG machine are the result of minute electrical currents generated by
the heart flowing through the resistances of the tissues in the thorax. In
similar fashion, the Conductance Telemetry System (CTS) transmitter admits
minute high frequency currents into tissues via one pair of electrodes
producing voltages that can be detected by a remote receiver connected to a
second pair of external electrodes. A telemetry system based on this principle
will be highly resistant to interruptions of service if issues pertaining to
its reliance on chronic skin electrodes can be adequately addressed.
The goals of this program are to: 1) develop custom electronic components that
make it easy to integrate the CTS into a host system; 2) develop skin electrode
systems suitable for use in VAS and TAH patients, and, 3) obtain third party
certification of compliance with safety standards.
PROPOSED COMMERCIAL APPLICATION:
Both the NHLBI and private industry are supporting the devleopment of implantable blood
pumps to address the needs of an estimated 30-40,000 patients annually who might benefit
from permanent mechanical circulatory support. The proposed device is applicable to
virtually all of these systems.
Small Business Information at Submission:
Principal Investigator:Craig W. Sherman
WHALEN BIOMEDICAL, INC.
5 HOWLAND ST CAMBRIDGE, MA 02138
Number of Employees: