Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Catheter set










Image Number 2 for United States Patent #4451256.

In order to keep the opening for inserting a catheter into a blood vessel as small as possible, a catheter insertion tube is used which coaxially surrounds the puncturing canula and consists, at least in a circumferential area and/or at least along a portion of its length, of one or several dilatable or expandable areas permitting enlargement of its internal diameter. The diameter of the catheter insertion tube, at the front end where it is inserted into the blood vessel, is approximately equal or smaller than the outer diameter of the catheter. The catheter insertion tube is expandable at least over the front or forward portion of its length by the catheter. The catheter insertion tube i removable from the puncture over the catheter while the catheter is advanced into the puncture and is tighty sealed by the catheter because the catheter has an external diameter equal to or larger than the puncture previously occupied by the insertion tube.








 
 
  Recently Added Patents
Processing biomass
Prevention and treatment of oxidative stress disorders by gluthathione and phase II detoxification enzymes
Method and apparatus for user selection of advertising combinations
Non-volatile memory array and device using erase markers
Message value indicator
Laser processing method and apparatus
Web-based royalty system and user interface
  Randomly Featured Patents
Lunch bag with loop handles
Chromatographic septum having polyimide coating
Fuel system
Questionnaire network for mobile handsets and a trading system for contracts on user commitments to answer questionnaires
Modulated semiconductor DFB laser array with a MEMS-based RF switch
Staircase
Mirror-carrying flash lamp
Apparatus for estimating and compensating carrier frequency offset and data receiving method in receiver of wireless communication system
Duty cycle correction using input clock and feedback clock of phase-locked-loop (PLL)
Separation and purification of carboxylic acids from fermentation broths