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 for determining decoding order in a MIMO system with successive interference cancellation
Process for preparing substituted aromatic carboxylic acids
Monofocal photographing lens assembly
Memristive junction with intrinsic rectifier
Solar power system with communication network utilizing magnetic fields
Off-loading of processing from a processor blade to storage blades based on processing activity, availability of cache, and other status indicators
Systems and methods for electronic verification of vehicle insurance coverage
  Randomly Featured Patents
Electrically controlled fuel injection system
Method and device for transmission of a wide-beam in an ultrasonic diagnostic system
Method for producing magnetic memory device
Power cable tap connector
Information recording and reproducing device suppressing erasure of data when power interruption occurs during data recording
Method and apparatus for making and manipulating streams of fibrous material
Method for production of aldehydes
Camera strap
Device for sealing the penetration of drive shaft/housing in rotary pumps for liquids, especially oil pumps for motor vehicles
Membraneless electrochemical cell and microfluidic device without pH constraint