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
Methods of packaging imager devices and optics modules, and resulting assemblies
Group control method for machine type communication and mobile communication system using the method
Optical disc drive having a tray for loading a disc using supporting portions
Compound containing a carbon or an oxygen isotope, preparation and use thereof, and composition comprising thereof
Liquid crystal display wherein the data lines covered by each pixel electrode are supplied with data signals of opposite polarities
Method for implementing dynamic pseudorandom keyboard remapping
  Randomly Featured Patents
Four-stroke cycle internal combustion engine
Coil spring counterbalance system for side loading window sashes
Engine exhaust muffler
Process for the preparation of melamine
Picture frame assembly
Headphone cable heart
Adaptive anode nitrogen management control
Process for thermodynamically treating a region joining two members
Tackle holder for fishermen
Implementation of a metal barrier in an integrated electronic circuit