Surgery – Truss – Pad
Patent
1994-03-01
1995-12-19
Smith, Ruth S.
Surgery
Truss
Pad
1286535, A61B 5055
Patent
active
054760950
ABSTRACT:
An insertable pickup probe and interface network for magnetic resonance imaging and spectroscopy. The pickup probe in the preferred embodiment is for use in imaging the male prostate and comprises an elongated shaft supporting a patient interface balloon at its distal end which contains a RF receiving coil. The interface balloon comprises an inflatable inner balloon enclosed by a flexible outer balloon. The receiving coil is positioned between the inner and outer balloons and placed intimately adjacent the region of interest by inflating the inner balloon to expand outwardly against the outer balloon. In addition, a non-stretchable planar material is provided on the surface on the inner balloon adjacent the receiving coil for ensuring that the receiving coil is placed adjacent the region of interest. The inner balloon is inflated by an inflator cuff connected to the shaft and communicated to the inner balloon by a first lumen in the shaft. The receiving coil is electrically connected to an interconnecting cable which is connected to the proximal end of the shaft and communicated to the receiving coil by a second lumen in the shaft. The interface network receives the interconnecting cable of the pickup probe and includes impedance matching means, tuning means, and decoupling means for interfacing the probe with a magnetic resonance imaging scanner. In addition, the interface includes an electronic circuit for automatically adjusting the control voltage of a varactor diode in a Pi network which comprises the tuning means.
REFERENCES:
patent: 2085644 (1937-06-01), Ferciot
patent: 2126257 (1938-08-01), Hird
patent: 4338942 (1982-04-01), Fogarty et al.
patent: 4398149 (1983-08-01), Zens
patent: 4545390 (1985-10-01), Leary
patent: 4587493 (1986-05-01), Sepponen
patent: 4617936 (1986-10-01), Malko
patent: 4620155 (1986-10-01), Edelstein
patent: 4636730 (1987-01-01), Bottomley
patent: 4646024 (1987-02-01), Schenck et al.
patent: 4649348 (1987-03-01), Flugan
patent: 4672972 (1987-06-01), Berke
patent: 4680549 (1987-07-01), Tanttu
patent: 4692705 (1987-09-01), Hayes
patent: 4775371 (1988-10-01), Mueller, Jr.
patent: 4793351 (1988-12-01), Landman et al.
patent: 4911163 (1990-03-01), Fina
patent: 4920318 (1990-04-01), Misic et al.
patent: 4932411 (1990-06-01), Fritschy et al.
patent: 4960106 (1990-10-01), Kubukawa et al.
patent: 4989608 (1991-02-01), Ratner
patent: 5035231 (1991-07-01), Kubokawa et al.
patent: 5050607 (1991-09-01), Bradley et al.
patent: 5071406 (1991-12-01), Jang
patent: 5108370 (1991-12-01), Walinsky
patent: 5170789 (1992-12-01), Narayan et al.
J. F. Schenck et al., "High Resolution Magnetic Resonance Imaging Using Surface Coils," Resonance Annual, p. 123 (1986).
Schnall et al., "The Development of an Intracavitary Inflatable Surface Coil for High Resolution Proton Imaging and Spectroscopy," Society of Magnetic Resonance in Medicine (Aug. 1986).
J. F. Martin et al., "Inflatable Surface Coil for MR Imaging of the Prostate", (Apr. 1988).
R. J. Otto et al., "High Resolution MR Imaging of the Prostate" Society of Magnetic Resonance Imaging, (Feb. 1987).
Kressel Herbert Y.
Lenkinski Robert E.
Pollack Howard M.
Schnall Mitchell D.
Medrad Inc.
Smith Ruth S.
University of Pennsylvania
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