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
Antimony and germanium complexes useful for CVD/ALD of metal thin films
Front end for RF transmitting-receiving systems with implicit directional control and time-multiplexing method in submicron technology
Liquid crystal display device with a control mechanism for eliminating images
Semiconductor device
Perspective runway system
Intralevel conductive light shield
Systems and methods for a signed magnitude adder in one's complement logic
  Randomly Featured Patents
Multispeaker sound imaging system
Apparatus for cold-forming metal workpieces
Contactless guided positioning table
Information processing apparatus
System for noninvasive determination of analytes in tissue
Dynamic prioritized replacement of language
Electromagnetic contactor
Wireless control system
Process for preparing low-monomer-content TDI trimers
Method and apparatus for volumetric calibration of liquid flow sensor output signals