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
Dental cement composition
Controlling information about a data storage system returned to an end-user
Printer having guided print zone
Copolymers of epoxy compounds and amino silanes
Image forming apparatus
Immunotherapeutic method
Mounting component, electronic device, and mounting method
  Randomly Featured Patents
Symmetric key distribution framework for the internet
Dispersion-based heat-sealable coating
Voice actuated vehicle security system with starting system interlock and automatic arming feature
Light pipe for direct-type backlight and direct-type backlight
Continuous smelting and refining of cement copper
Apparatus and method for controlling reel game
Thermally accommodating interconnection for cast-in-place components
Mobile surveillance
Integrated circuit operable in a standby mode
Expandable stretching frame with cladding and bearing mechanisms