Resources Contact Us Home
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
Bamboo scrimber and manufacturing method thereof
Method and apparatus for detection of the remote origin fraction of radon present in a measuring site
Systems and methods for detecting and rejecting defective absorbent articles from a converting line
Method and a channel estimating arrangement for performing channel estimation
Filtering method for improving the data quality of geometric tire measurements
Integrated circuit with electromagnetic intrachip communication and methods for use therewith
Methods of isolating bipotent hepatic progenitor cells
  Randomly Featured Patents
Bow module portable modular structure
Perceptual similarity image retrieval method
Portable diving box
Fuel gas station, fuel gas filling system, and fuel gas supplying method
Bi-directional information exchange mechanism for collaborative network navigation among a group of user terminals
Alternating current chopper circuit with low noise
Turbocharger vane
Recording apparatus
Air conditioner unit suitable for mounting on the roof of a vehicle
Orthodontic threading tool