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
Making transparent capacitor with multi-layer grid
Nitrogen-doped carbon-supported cobalt-iron oxygen reduction catalyst
Mobile browser context switching
Blend polymer gas separation membrane
Customizing a range of acceptable tape dimensional stability write conditions
LO generation with deskewed input oscillator signal
Multi-port, gigabit SERDES transceiver capable of automatic fail switchover
  Randomly Featured Patents
Diagnostic marker for hepatocellular carcinoma comprising anti-FASN autoantibodies and a diagnostic composition for hepatocellular carcinoma comprising antigens thereof
Valve control system for an air displacement type pump
Use of .beta.-adrenergic agonists to treat patients with demyelinating or autoimmune diseases
Regulated DC to DC power supply with automatic recharging capability
Position detecting device of linear motor
Maintaining a graphical user interface state that is based on a selected piece of content
Watchdog circuit
System and method for packaging oriented containers
Nativity scene housing construction