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
Display fixture for highlighting products
Hepatitis C virus inhibitors
Generation of uniform fragments of nucleic acids using patterned substrates
Method and system for a low-power client in a wide area network
Methods of saccharification of polysaccharides in plants
Browsing or searching user interfaces and other aspects
Electronic component and reflected-wave cancelling method
  Randomly Featured Patents
Layer-2 management entity messaging framework in a network
Selective passivation of exposed silicon
Paper product
Electric connector with pull-out plug
Composition for promotion of health
Protection bus and method for a telecommunications device
Trencher guidance via GPS
Outdoor unit for air-conditioner
Method and apparatus for automatically recognizing photographic originals unsuitable for copying