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
Image heating device
Plasmon generator includes three metal layers for thermally-assisted magnetic recording
Output device, source apparatus, television set, system, output method, program, and recording medium
Dual source mass spectrometry system
Soybean cultivar CL1013663
Methods and systems for identifying and changing resolutions to cause an aspect ratio of a printed image to match an aspect ratio of image data
Data processing circuit with arbitration between a plurality of queues
  Randomly Featured Patents
Motherboard having hard-wired private bus between graphics cards
Quilting method and apparatus
Apparatus for monitoring the functionality of an optical element
Package for activity kit
Housing for an automobile brake indicator
Echo ranging system for detecting velocity of targets using composite doppler invariant transmissions
Conversion tray for media storage container
Methods and apparatuses for generating error correction codes
Insulating structure between conductive members of electric device
Photoelectric sensor with a circular polarizing lens attached to its housing