Metal hot tip catheter with fused tip and temperature feedback loop
Disclosed is a hot tip catheter having minimal tip dissociation, which reaches and consistently maintains very high temperatures. The catheter body is formed of spirally wound metal wire (2) which is relatively flat, each spiral substantially in contact with the next, to improve column strength, and...
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| creator | SONOU, JIM CHEN, PETER DE LA RAMA, ALAN DIAZ MARTINEZ, RICHARD HO, DANIEL N NGUYEN, THO H |
| description | Disclosed is a hot tip catheter having minimal tip dissociation, which reaches and consistently maintains very high temperatures. The catheter body is formed of spirally wound metal wire (2) which is relatively flat, each spiral substantially in contact with the next, to improve column strength, and is sealed with teflon (21) and a distal collar (22). The hot tip (3) is also formed of metal and is welded to the catheter body to eliminate dissociation of the tip. Heating is a accomplished by a catalytic reaction of H2 and O2 at the tip monitored via a thermocoupler, and the catheter body includes a gas inlet lumen (connected to a gas generator) and a vacuum outlet lumen (connected to a vacuum pump) to input the gas and remove the heat by-products, respectively. A temperature control loop is preferably included which regulates the inflow of gas to the catheter, and the temperature of the tip. |
| format | Patent |
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The catheter body is formed of spirally wound metal wire (2) which is relatively flat, each spiral substantially in contact with the next, to improve column strength, and is sealed with teflon (21) and a distal collar (22). The hot tip (3) is also formed of metal and is welded to the catheter body to eliminate dissociation of the tip. Heating is a accomplished by a catalytic reaction of H2 and O2 at the tip monitored via a thermocoupler, and the catheter body includes a gas inlet lumen (connected to a gas generator) and a vacuum outlet lumen (connected to a vacuum pump) to input the gas and remove the heat by-products, respectively. A temperature control loop is preferably included which regulates the inflow of gas to the catheter, and the temperature of the tip.</description><language>eng ; fre ; ger</language><subject>CONTROLLING ; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY ; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR ; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY ; DIAGNOSIS ; HUMAN NECESSITIES ; HYGIENE ; IDENTIFICATION ; MEDICAL OR VETERINARY SCIENCE ; PHYSICS ; REGULATING ; SURGERY ; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES</subject><creationdate>1990</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900131&DB=EPODOC&CC=EP&NR=0352955A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19900131&DB=EPODOC&CC=EP&NR=0352955A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SONOU, JIM</creatorcontrib><creatorcontrib>CHEN, PETER</creatorcontrib><creatorcontrib>DE LA RAMA, ALAN DIAZ</creatorcontrib><creatorcontrib>MARTINEZ, RICHARD</creatorcontrib><creatorcontrib>HO, DANIEL N</creatorcontrib><creatorcontrib>NGUYEN, THO H</creatorcontrib><title>Metal hot tip catheter with fused tip and temperature feedback loop</title><description>Disclosed is a hot tip catheter having minimal tip dissociation, which reaches and consistently maintains very high temperatures. The catheter body is formed of spirally wound metal wire (2) which is relatively flat, each spiral substantially in contact with the next, to improve column strength, and is sealed with teflon (21) and a distal collar (22). The hot tip (3) is also formed of metal and is welded to the catheter body to eliminate dissociation of the tip. Heating is a accomplished by a catalytic reaction of H2 and O2 at the tip monitored via a thermocoupler, and the catheter body includes a gas inlet lumen (connected to a gas generator) and a vacuum outlet lumen (connected to a vacuum pump) to input the gas and remove the heat by-products, respectively. 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The catheter body is formed of spirally wound metal wire (2) which is relatively flat, each spiral substantially in contact with the next, to improve column strength, and is sealed with teflon (21) and a distal collar (22). The hot tip (3) is also formed of metal and is welded to the catheter body to eliminate dissociation of the tip. Heating is a accomplished by a catalytic reaction of H2 and O2 at the tip monitored via a thermocoupler, and the catheter body includes a gas inlet lumen (connected to a gas generator) and a vacuum outlet lumen (connected to a vacuum pump) to input the gas and remove the heat by-products, respectively. A temperature control loop is preferably included which regulates the inflow of gas to the catheter, and the temperature of the tip.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CONTROLLING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PHYSICS REGULATING SURGERY SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES |
| title | Metal hot tip catheter with fused tip and temperature feedback loop |
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