Resources Contact Us Home
Device for subcutaneous accessibility

Image Number 9 for United States Patent #5911706.

An implantable single or dual-lumen or more lumen device for repeated accessing vessels within a body. The device uses a resilient material to form a seal, and has a smooth streamlined flowpath with no flow discontinuity. The device is joined to a catheter, in most cases, such that fluids can be extracted from or injected into the vessel to be accessed. The device is designed for the high flowrates, on the order of 150 and greater milliliters per minute, associated with hemodialysis, plasmapheresis, and other fluid exchange therapies. In such applications smooth flow streaming is important to minimize damage to the blood. A corresponding straight-needle apparatus is designed to mate and lock with the access device, where alignment and open flowpath is ensured. A valve seal incorporates opposing very hard surfaced guide elements that are retained and in intimate contact with the seal itself. The needle assembly pushes open these guide elements which open the seal before the needle point reaches the seal material.

  Recently Added Patents
Selection of hash lookup keys for efficient retrieval
Reticle for a riflescope or other projectile-weapon aiming device
Compositions for inhibiting NADPH oxidase activity
Wireless communication system
Transmitter having a programmable amplifier operating class
Methods of prognosing a rheumatoid arthritis remission phenotype
  Randomly Featured Patents
Method and system for enhancing short wave infrared images using super resolution (SR) and local area processing (LAP) techniques
Method and apparatus for coalescing variables
Hydrocarbon oxidations catalyzed by nitride-activated metal coordination complexes
Anchored catalyst system and method of making and using thereof
Aluminum alloy blank for lithographic printing plate and support for lithographic printing plate
Tilt steering mechanism and method
TV dinner tray
Outdwelling slit valves and assemblies for medical liquid flow through a cannula and related methods
Analyte meter and strip port
Audio data transmission device with coupling device