Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Catheter sheath with longitudinal seam










Image Number 2 for United States Patent #4921479.

An improved removable expandable sheath for aiding in the introduction of catheters into the body which is fabricated from a semi-stiff plastic with memory formed in a tubular configuration with a longitudinal slit or non-joined seam extending along the entire length of the sheath and where the tubular structure with slit is coiled about its longitudinal axis so that its tubular wall overlaps itself in its native state. On exertion of an internal force directed outward, the tubular sheath enlarges its effective diameter by uncoiling to the extent necessary to accommodate a catheter inserted therein. The memory inherent in the material of the sheath keeps the wall of the sheath snugly around the catheter to afford guidance of the catheter into a blood vessel.








 
 
  Recently Added Patents
Distortion estimation for quantized data
Integrated circuit testing with power collapsed
Image forming apparatus and method
Method and structure for adding mass with stress isolation to MEMS structures
Method for incubating the contents of a receptacle
Pluggable power cell for an inverter
Drive and startup for a switched capacitor divider
  Randomly Featured Patents
Integrated rotor-generator
Triarylmethane derivatives
Apparatus for making assemblies of pocketed springs
Inflatable raft with inflatable climbing slide
Calibration fault detector and automatic calibrator
Surfactant compositions
Laser beam scanning system
Support device which is adjustable by an electric motor
Wheelchair shade or canopy means
Golf aids