05307814 is referenced by 120 patents and cites 27 patents.

An insertable intracavity probe for use in magnetic resonance imaging of an area of interest in a body cavity particularly the colon, has an elongate shaft with a handle at its proximal end and an inflatable balloon structure at its distal end. The balloon structure has an outer balloon containing a loop-type pickup coil for connection to an interfacing network. The coil is sandwiched between two internal separately inflatable balloons, and when the probe is inserted, the coil can be optimally positioned relative to the area of interest by controlled differential inflation of the balloons. The probe also has an insertable rod-like mandrel for providing twisting orbital-type movement of the balloon structure on the shaft, by rotation of the mandrel, useful to steer the probe along curves or bends in the body cavity when it is being inserted. In a modified form of the probe, the mandrel can be used to rotate the coil and the internal balloons as a unit within the outer balloon for optimal in situ angular positioning of the coil.

Title
Externally moveable intracavity probe for MRI imaging and spectroscopy
Application Number
7/760463
Publication Number
5307814
Application Date
September 17, 1991
Publication Date
May 3, 1994
Inventor
Yutaka Imai
Tokyo
JP
Robert E Lenkinski
Drexel Hill
PA, US
Mitchell Schnall
Lansdowne
PA, US
Edward J Rhinehart
Monroeville
PA, US
Herbert Y Kressel
Wynnesal
PA, US
Agent
Keck Mahin & Cate
Assignee
The Trustees of the University of Pennsylvania
PA, US
Medrad
PA, US
IPC
A61M 25/10
A61B 5/055
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