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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Schafer, M.E. Kraynak, T.L. Lewin, P.A. |
| Copyright Year | 1990 |
| Description | Author affiliation: Sonic Technol., Horsham, PA, USA (Schafer, M.E.; Kraynak, T.L.) |
| Abstract | The authors discuss the development of a miniature precision acoustic sensor (hydrophone) which would survive in an in-vivo shock-wave field. The immediate application of the device is in improving the safety and efficacy of extracorporeal shock-wave lithotripsy (ESWL) treatment of kidney and gallbladder stones. The hydrophone is designed for insertion into the body using a catheter or biopsy needle, to provide reliable in-vivo acoustic pressure measurements of the ESWL. The research efforts include, (1) theoretical modeling to examine design trade-offs associated with material choice and sensor configuration; (2) prototype construction; and (3) acoustical performance characterization. The results of prototype testing are shown and compared to existing hydrophone designs. Performance differences involve bandwidth, directivity, and survivability under shock-wave exposure. The fundamental difficulty is improving survivability without sacrificing bandwidth or signal fidelity. |
| Starting Page | 1623 |
| Ending Page | 1626 |
| File Size | 420563 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ULTSYM.1990.171643 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1990-12-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Shock waves Sonar equipment Acoustic sensors Prototypes Bandwidth Safety devices Lithotripsy Catheters Biopsy Needles |
| Content Type | Text |
| Resource Type | Article |
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