Balloon catheter for hyperthermia treatment
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United States of America Patent
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-
Sep 28, 1999
Grant Date -
N/A
app pub date -
Jun 13, 1997
filing date -
Nov 21, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device for carrying out heat treatment so-called hyperthermia, in a body cavity or duct comprising a catheter having an elongate front part (3) intended for insertion into said cavity or duct provided with a central tube (9) and a flexible and/or elastic balloon (7) surrounding said central tube in a liquid-tight manner, further comprising an axially operating first inlet (11) at the proximal end of the central tube and at least one outlet from the central tube intended for the supply of said medium under pressure to the balloon for the expansion thereof. The device is characterized in that said central tube (9) at its distal end extends at least up to the forward inner wall of the balloon to which it is fixed, said device in connection with the distal end of the central tube (9) being provided with a valve (33; 33') enabling discharge of gas from the interior of the balloon (7) through at least one gas outlet arranged at said distal end.
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