Browse Prior Art Database

Catheter

IP.com Disclosure Number: IPCOM000091728D
Original Publication Date: 1968-May-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Garwin, RL: AUTHOR

Abstract

Catheter 1, for medical application, is a double-walled flexible tube having opening 2 entering into chamber 3. A pressure is applied to chamber 3 by flowing a fluid through duct 4 into such chamber. As the pressure increases within chamber 3, inner wall 5 of catheter 1 separates from outer wall 6 and can be freely moved by force on the right-hand end through hypodermic needle 7 causing wall 6 to roll upon itself as it enters needle 7. Catheter 1 travels through needle 7 into a blood vessel and into a designated biological organ. Because the applied pressure causes walls 5 and 6 of catheter 1 to roll upon itself, catheter 1 does not slide with respect to the blood vessel. Thus, damage to the blood vessel is minimized.

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Catheter

Catheter 1, for medical application, is a double-walled flexible tube having opening 2 entering into chamber 3. A pressure is applied to chamber 3 by flowing a fluid through duct 4 into such chamber. As the pressure increases within chamber 3, inner wall 5 of catheter 1 separates from outer wall 6 and can be freely moved by force on the right-hand end through hypodermic needle 7 causing wall 6 to roll upon itself as it enters needle 7. Catheter 1 travels through needle 7 into a blood vessel and into a designated biological organ. Because the applied pressure causes walls 5 and 6 of catheter 1 to roll upon itself, catheter 1 does not slide with respect to the blood vessel. Thus, damage to the blood vessel is minimized.

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