Resources Contact Us Home
Catheter for the introduction of an expandable member

Image Number 3 for United States Patent #5089005.

A catheter includes a cylindrical expansion holder detachable from its distal end portion to temporarily or permanently expand and hold an inner diameter of an internal cavity of a blood vessel or any other tubular organ. The outer diameter of the distal end portion of the catheter which supports the expansion holder is much smaller than that of other catheter portions. Even if the cylindrical expansion holder is supported on the small-diameter portion, the outer diameter of the expansion holder is equal to or smaller than that of other catheter portions. The expansion holder is made of a shape memory alloy which can radially expand or contract in accordance with changes in temperature. The expansion holder can expand or contract by supplying a warm or cool solution from side holes formed in the distal end portion of the catheter and bringing this solution into contact with the expansion holder.

  Recently Added Patents
Receiver with feedback continuous-time delta-sigma modulator with current-mode input
Tablet computer
Enhancement of semiconducting photovoltaic absorbers by the addition of alkali salts through solution coating techniques
Carbonyl-ene functionalized polyolefins
Methods for selective reverse mask planarization and interconnect structures formed thereby
Peered proctoring
Image-capturing device and projection automatic calibration method of projection device
  Randomly Featured Patents
Mounting for figures
6-bar erecting system
Lighting assembly for multiple fluorescent lamps
Zeolite adsorbent for separation of para-xylene
Light transmitting operating member
Backbone edge switching apparatus and packet processing method of the backbone edge switching apparatus
Encoding and decoding systems
Rolling block for rolling metallic bars or wires
Battery and flashlight recharger
Charging method, charging equipment, and integrated circuit