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
Display screen or portion thereof with icon
Optical fixing device and image forming apparatus
Decrementing settings for a range of power caps when a power cap is exceeded
Storage device performance alignment notification
Image descriptor quantization
Semiconductor device and manufacturing method
Electrowetting display devices with a reflective plate structure
  Randomly Featured Patents
Portable electronic device with fastening structure
Multi-color marking pen assembly
11.beta.-aryl-17, 17-spirothiolane-substituted steroids
Phase-lock loop control circuitry
Monopolar and bipolar electrolyzer and electrodic structures thereof
Photomask blank, photomask, and methods of manufacturing the same
System and method for evaluating character in a message
Chimeric infectious bursal disease virus cDNA clones, expression products and vaccines based thereon
Method, apparatus, and program for detecting sequential and distributed path errors in MPIO
Endodontic instrument and method