Resources Contact Us Home
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
Taxi cab key chain
Lens module and method for manufacturing thereof
Engineered magnetic layer with improved perpendicular anisotropy using glassing agents for spintronic applications
Pattern forming method using developer containing organic solvent and rinsing solution for use in the pattern forming method
Magnetic reading and writing device
Stable file system
Color image forming apparatus with contact control of process units
  Randomly Featured Patents
Speech timer
Sandwich preparation and storage container set
Method and device for sanitation using bacteriophages
Energy robust field effect transistor
Apparatus and method for measuring and compensating the length of a punch tool
Cover label for daylight camera
Plasma treatment of glass surfaces to remove carbon
High DQE photon counting detector using statistical recovery of pile-up events
Can crusher