DARA LEE KRAITCHMAN
Veterinary in Oxford, MD
License number
Pennsylvania BV007373L
Category
Veterinary Medicine
Type
Veterinarian
Address
Address
2
Oxford, MD 21654
Pennsylvania
Pennsylvania
Personal information
See more information about DARA LEE KRAITCHMAN at radaris.comName
Address
Phone
PO Box 558, Oxford, MD 21654
Professional information
Systems And Methods For High-Throughput Microfluidic Bead Production
US Patent:
2013018, Jul 18, 2013
Filed:
Oct 3, 2011
Appl. No.:
13/822983
Inventors:
Weijie Beh - Baltimore MD, US
Dara L. Kraitchman - Oxford MD, US
Dara L. Kraitchman - Oxford MD, US
Assignee:
The Johns Hopkins University - Baltimore MD
International Classification:
B29B 9/12
US Classification:
424 93, 425 10, 264 11, 424 94, 424 95
Abstract:
A system for producing microbeads includes a microfluidic device defining a supply channel and a shearing channel, a microbead precursor material disposed in the supply channel, a carrier fluid disposed in the shearing channel, and a pressure distribution system fluidly connected to each of the supply channel and the shearing channel to control at least relative pressures of the microbead precursor material and the carrier fluid. The supply channel includes a check valve adapted to be subjected to a bias pressure that is sufficient to close the check valve to flow of microbead precursor material when a supply pressure of the microbead precursor material is below a threshold pressure and is open to flow of the microbead precursor material when the supply pressure of the microbead precursor material is greater than the threshold pressure. An end of the supply channel opens into the shearing channel such that the microbead precursor material is sheared into droplets by the carrier fluid flowing through the shearing channel. A pressure of the carrier fluid is less than the bias pressure. The microbead precursor material and the carrier fluid are substantially immiscible.
Method For Magnetic Resonance Imaging Using Inversion Recovery With On-Resonant Water Suppression Including Mri Systems And Software Embodying Same
US Patent:
2012006, Mar 15, 2012
Filed:
Oct 24, 2011
Appl. No.:
13/279686
Inventors:
Matthias Stuber - Ellicott City MD, US
Wesley D. Gilson - Pasadena MD, US
Dara L. Kraitchman - Oxford MD, US
Wesley D. Gilson - Pasadena MD, US
Dara L. Kraitchman - Oxford MD, US
Assignee:
The Johns Hopkins University - Baltimore MD
International Classification:
G01R 33/44
US Classification:
324309
Abstract:
Featured are methods for magnetic resonance imaging of a volume, such a volume having susceptibility-generating objects or interfaces having susceptibility mismatches therein. Such a method includes selectively visualizing one of susceptibility-generating objects or interfaces having susceptibility mismatches as hyperintense signals, where such visualizing includes controlling variable imaging parameters so as to control a geometric extent of a signal enhancing effect, m more particular aspects of the present invention, such selectively visualizing includes attenuating or essentially suppressing signals from fat and/or water, namely on-resonant water protons, so as to thereby enhance a signal(s) associated with magnetic susceptibility gradient(s). Also featured are MRI systems, apparatuses and/or applications programs for execution on a computer system controlling the MRI data acquisition process embodying such methods.
Magnetic Resonance-Detectable, Ultrasound-Detectable And/Or Radiopaque Microcapsules And Uses Thereof
US Patent:
2010004, Feb 25, 2010
Filed:
Apr 24, 2007
Appl. No.:
12/226648
Inventors:
Jeff Bulte - Fulton MD, US
Bradley Powers - Baltimore MD, US
Aravind Arepally - Baltimore MD, US
Dara Lee Kraitchman - Oxford MD, US
Bradley Powers - Baltimore MD, US
Aravind Arepally - Baltimore MD, US
Dara Lee Kraitchman - Oxford MD, US
Assignee:
The Johns Hopkins University - Baltimore MD
International Classification:
A61K 9/50, A61K 35/12, G01R 33/48
US Classification:
424490, 424 931, 424 937, 324309
Abstract:
The present invention provides a microcapsule for implantation into a mammalian body, comprising: a) at least one cell and/or bioactive agent; and b) a biocompatible semi-permeable membrane encapsulating the at least one cell, wherein the biocompatible semi-permeable membrane comprises: at least one polycationic polymer region, at least one alginate polymer region, and a paramagnetic or superparamagnetic metal that does not participate in the crosslinking of the alginate polymer. The present invention further provides methods of making the microcapsules of this invention and use of the microcapsules of this invention in methods of delivering cells and/or therapeutic agents to a subject and in methods of embolization.
Method For Magnetic Resonance Imaging Using Inversion Recovery With On-Resonant Water Suppression Including Mri Systems And Software Embodying Same
US Patent:
2009002, Jan 29, 2009
Filed:
Feb 3, 2006
Appl. No.:
11/883534
Inventors:
Matthias Stuber - Ellicott City MD, US
Wesley D. Gilson - Pasadena MD, US
Dara L. Kraitchman - Oxford MD, US
Wesley D. Gilson - Pasadena MD, US
Dara L. Kraitchman - Oxford MD, US
Assignee:
The Johns Hopkins University - Baltimore MD
International Classification:
G01R 33/483
US Classification:
324309
Abstract:
Featured are methods for magnetic resonance imaging of a volume, such a volume having susceptibility-generating objects or interfaces having susceptibility mismatches therein. Such a method includes selectively visualizing one of susceptibility-generating objects or interfaces having susceptibility mismatches as hyperintense signals, where such visualizing includes controlling variable imaging parameters so as to control a geometric extent of a signal enhancing effect, m more particular aspects of the present invention, such selectively visualizing includes attenuating or essentially suppressing signals from fat and/or water, namely on-resonant water protons, so as to thereby enhance a signal(s) associated with magnetic susceptibility gradient(s). Also featured are MRI systems, apparatuses and/or applications programs for execution on a computer system controlling the MRI data acquisition process embodying such methods.