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
Method, apparatus, and manufacture for adaptation of video encoder tuning parameters
Multicolored light converting LED with minimal absorption
Method and system for providing status of a machine
Reuse of static image data from prior image frames to reduce rasterization requirements
Method for carrying out a chemical reaction
Permitting access of slave device from master device based on process ID's
System and method for creating, managing and trading hedge portfolios
  Randomly Featured Patents
Building structure
Servo system controller
Thin film transistor liquid crystal display
Culture collection and transport device
Broad band slot style television broadcast antenna
Apparatus for performing raised dot formations
Triggered data collector and data transmitter
Strained silicon MOSFETs having NMOS gates with work functions for compensating NMOS threshold voltage shift
Bar code scanner with scanning beam and/or field of view adjustable about three mutually orthogonal axes