Abstract: An alternative to using a stent, a catheter apparatus and method removes arterial plaque within an isolated environment at a target site while separately maintaining continuous blood flow, then removed post procedure. A catheter head has a tubular array for providing a plaque treatment solution within a first layer of the catheter apparatus without the same entering the blood stream, and for receiving a guide-wire to position the apparatus at the target site. The first layer has a plurality of flap members, with each defining an air pressure regulated pore for plaque removal using an inflow tube and an outflow tube. A separate second layer of the catheter apparatus accommodates continuous blood flow during the procedure. A third layer of the catheter apparatus contains the selectively inflatable balloon. When the balloon is inflated, the catheter head and the catheter end cap each inflate to supports the arterial wall.
Abstract: The present disclosure provides a scanning probe, a method and an apparatus for manufacturing the scanning probe. The scanning probe includes a base and a micro-tip disposed on an end of the base, wherein at least a section of the micro-tip comprises a lateral surface with a concavely curved generatrix. In the method, an end of a probe precursor is immersed in a corrosive solution by having a length direction of the probe precursor inclined with a liquid surface of the corrosive solution. The probe precursor is corroded by the corrosive solution while a corrosion current of the corroding is monitored. The probe precursor is moved away from the corrosive solution after a magnitude of the corrosion current has a plunge. The apparatus includes a container containing the corrosive solution, and a driving device configured to move the probe precursor in the container through a fastener.
Abstract: Massive parallel printing of structures and nanostructures at high speed with high resolution and high quality using two dimensional arrays comprising cantilevers and tip-based transfer of material to a surface. The array is designed so only tips touch the surface. This can be accomplished by long tips and bent cantilevers and alignment. An article comprising: a two-dimensional array of a plurality of cantilevers, wherein the array comprises a plurality of base rows, each base row comprising a plurality of cantilevers, wherein each of the cantilevers comprise tips at the cantilever end away from the base, wherein the number of cantilevers is greater than 250, and wherein the tips have an apex height relative to the cantilever of at least four microns, and a support for the array. Combinatorial arrays and bioarrays can be prepared. The arrays can be manufactured by micromachining methods.
Type:
Application
Filed:
June 21, 2012
Publication date:
November 22, 2012
Inventors:
Chad A. Mirkin, Khalid Salaita, Yuhuang Wang, Joseph S. Fragala, Raymond R. Shile
Abstract: An instrument includes a probe having a porous tip, a tip positioning apparatus to position the tip with respect to a sample material, a probe positioning apparatus to position the probe and sample material with respect to each other, and a controller. The controller controls the probe positioning apparatus in positioning the probe over the sample and controls the tip positioning apparatus in lowering the tip into the sample material to produce an interaction between the porous tip and the sample material.
Abstract: Probe structures and fabrication techniques are described. The described probe structures can be used as probes for various applications such as conductance measurement probes, field emitter probes, nanofabrication probes, and magnetic bit writing or reading probes.
Type:
Grant
Filed:
May 10, 2006
Date of Patent:
September 13, 2011
Assignee:
The Regents of the University of California
Abstract: Provided is near-field optical probe including: a cantilever arm support portion that is formed of a lower silicon layer of a silicon-on-insulator (SOI) substrate, the cantilever arm support portion having a through hole formed therein at a side of the lower silicon layer; and a cantilever arm forming of a junction oxidation layer pattern and an upper silicon layer pattern on the SOI substrate that are supported on an upper surface of the lower silicon layer and each have a smaller hole than the through hole, a silicon oxidation layer pattern having a tip including an aperture at a vertical end, corresponding with the hole on the upper silicon layer pattern, and an optical transmission prevention layer that is formed on the silicon oxidation layer pattern and does not cover the aperture.
Type:
Grant
Filed:
May 14, 2009
Date of Patent:
January 18, 2011
Assignee:
Electronics and Telecommunications Research Institute
Inventors:
Eunkyoung Kim, Sung Q Lee, Kang Ho Park
Abstract: A fabricating method of a structure having nano-hole is provided. The fabricating method includes: providing a substrate, forming a photoresist layer on the substrate, forming an opening, and performing a heat treatment process on the photoresist layer to shrink the opening to form a nano-hole. The structure having nano-hole fabricated by the method of the present invention can be used to fabricate a nano-tip having a diameter of tip-body of no more than 10 nm, high aspect ratio, and a uniform diameter of tip-body.
Type:
Grant
Filed:
April 20, 2007
Date of Patent:
October 12, 2010
Assignee:
Industrial Technology Research Institute
Abstract: Provided are a probe for surface enhanced vibrational spectroscopic analysis which has excellent detection sensitivity to laser light having an intensity level at which a sample is not damaged and which has a long life, and a method of manufacturing the probe. The probe for surface enhanced vibrational spectroscopic analysis is formed on a cantilever. A plurality of metal fine particles are dispersed in the probe. The plurality of metal fine particles are exposed on the surface of the probe.
Abstract: An apparatus includes a storage media having a surface coated with a lubricant, and a plurality of probes having tips contacting the lubricant, wherein the probes are coated with one of a fluorocarbon, perfluoropolyether, polytetrafluoroethylene, fluorinated ethylene propylene, polyethylene, or a hydrocarbon polymer.
Type:
Grant
Filed:
May 1, 2006
Date of Patent:
October 6, 2009
Assignee:
Seagate Technology LLC
Inventors:
Paul Max Jones, Earl Chrzaszcz Johns, James Dillon Kiely, Lei Li, Yiao-Tee Hsia
Abstract: A carbon thin line probe having a carbon thin line selectively formed at a projection-like terminal end portion thereof by means of an irradiation of high-energy beam, the carbon thin line internally containing a metal. Thereby achieved is a carbon thin line probe suitable for example for the probe of SPM cantilever, which has a high aspect ratio and high durability and reliability, capability of batch processing based on a simple manufacturing method, and to which magnetic characteristic can be imparted.
Abstract: The present invention provides microcoaxial probes fabricated from semiconductor heterostructures that include strained semiconductor bilayers. The microcoaxial probes are well suited for use as scanning probes in scanning probe microscopy, including scanning tunneling microscopy (STM), atomic force microscopy (AFM), scanning microwave microscopy, or a combination thereof.
Abstract: Sensors and systems for electrical, electrochemical, or topographical analysis, as well as methods of fabricating these sensors are provided. The sensors include a cantilever and one or more probes, each of which has an electrode at its tip. The tips of the probes are sharp, with a radius of curvature of less than about 50 nm. In addition, the probes have a high aspect ratio of more than about 19:1. The sensors are suitable for both Atomic Force Microscopy and Scanning Electrochemical Microscopy.
Type:
Grant
Filed:
September 22, 2005
Date of Patent:
November 4, 2008
Assignee:
The Board of Trustees of the Leland Stanford Junior University
Inventors:
Friedrich B. Prinz, Ye Tao, Rainer J. Fasching, Ralph S. Greco, Kyle Hammerick, Robert Lane Smith
Abstract: A microscope device includes a probe having a dielectric material with a first side and a second side. First and second electrodes are disposed on the first side of the dielectric material. A nanotube connects the first and second electrodes. A gate electrode is disposed on the second side (e.g., backside) of the dielectric material. The device includes a stage adapted for holding a sample. The stage and probe are moveable with respect to one another such that the sample can be brought in close proximity to the nanotube. The device further includes current measurement circuitry for measuring current (e.g., Random Telegraph Signals) passing through the nanotube. The microscope device is able to identify and characterize single defects on the molecular or atomic scale. The probe device may be combined with spin resonance and/or optical systems such that the detection/mapping/manipulate of single spin and single photon could be achieved.
Type:
Grant
Filed:
April 12, 2006
Date of Patent:
September 23, 2008
Assignee:
The Regents of the University of California
Abstract: A method for fabricating scanning probe microscopy (SPM) probes is disclosed. The probes are fabricated by forming a structural layer on a substrate, wherein the substrate forms a cavity. A sacrificial layer is located between the substrate and the structural layer. Upon forming the structural layer, the sacrificial layer is selectively removed, and the probe is then released from the substrate. The substrate may then later be reused to form additional probes. Additionally, a contact printing method using a scanning probe microscopy probe is also disclosed.