Abstract: Methods and systems relate to enhancing heat transfer between a vessel wall and a sample or coupling medium during focused acoustic processing. The vessel containing the sample may include a heat exchanger on an inner surface and/or an outer surface of the vessel that can have any suitable shape or dimension that increases the surface area of the vessel wall. In some embodiments, heat exchanger features may disrupt a boundary layer of a liquid sample at the vessel wall during focused acoustic processing. Accordingly, the temperature of the liquid sample can be appropriately controlled. In some cases, heating and/or cooling of the liquid sample may be performed efficiently. In an embodiment, a liquid sample may be heated at a rate of at least about 25 degrees C. per ml per minute.
Abstract: Method and apparatus for controlling acoustic treatment of a sample including a liquid. A processing volume in which the sample is acoustically treated may be controlled, e.g., by positioning a suitable element so as to reduce and/or eliminate a headspace size at a sample/gas interface. An interaction between the acoustic energy and the sample may be controlled, e.g., by using a headspace control element positioned at least partially in the sample that helps to reduce splashing or other sample ejection that would otherwise occur.
Abstract: Acoustic energy is used to control motion in a fluid. According to one embodiment, the invention directs acoustic energy at selected naturally occurring nucleation features to control motion in the fluid. In another embodiment, the invention provides focussed or unfocussed acoustic energy to selectively placed nucleation features to control fluid motion. According to one embodiment, the invention includes an acoustic source, a controller for controlling operation of the acoustic source, and one or more nucleation features located proximate to or in the fluid to be controlled.
Type:
Grant
Filed:
January 25, 2010
Date of Patent:
July 19, 2011
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: A system and method for controlling operation of a transducer circuit, e.g., including an acoustic transducer arranged to cause mixing, cavitation or other movement in a liquid contained in a vessel located remote from the transducer. A load current of a transformer used to generate a drive signal for the transducer may be controlled to vary sinusoidally, to vary between negative and positive values and such that the load current flows in a closed loop when a zero voltage bias is applied across the primary transformer winding, to have a reduced or eliminated 3rd harmonic mode and/or to vary between three discrete modes including a forward current mode, a zero voltage loop current mode, and a freewheel current mode. An inverter circuit may be used to control the load current, e.g., so that the load current flows in a closed loop during portions of the control cycle.
Abstract: The present invention provides systems, methods, and devices for using acoustic energy. In some embodiments, a fluid bath may be provided in the system where the fluid bath quality may be monitored using acoustic energy. An assessment of fluid bath quality can be determined through a comparison that is made of an initial power signal of the acoustic energy with a reflected power signal of the acoustic energy.
Type:
Grant
Filed:
June 17, 2009
Date of Patent:
October 12, 2010
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison, Robert McKnight, Douglas A. Yates
Abstract: A method and apparatus for exposing a sample, including a liquid and another material, to sonic energy to produce a desired result such as, suspending a material support in the liquid. The material support may be a bead or other particle with at least one surface feature to which the material may bind. Material in the liquid may attach to the material support, such as by specific or non-specific binding, entrapment or other, so as to facilitate separation of the material from the liquid. Separation of the material supports from the liquid and other unbound material may be done by allowing the material supports to settle out, e.g., under the force of gravity and/or as assisted by centrifugation, by applying a magnetic field in case the supports or material bound to the supports are movable by way of a magnetic field, or other techniques.
Abstract: Methods and systems for automated compound management and sample preparation using acoustic energy. In some embodiments, acoustic energy may be transmitted through a medium and a solid or semi-solid layer that is disposed adjacent to the vessel. Both the medium and the solid or semi-solid layer may couple acoustic energy from an acoustic energy source to a focal zone in close proximity to the sample in the vessel.
Type:
Grant
Filed:
August 1, 2006
Date of Patent:
July 20, 2010
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison, Douglas A. Yates
Abstract: Acoustic energy is used to control motion in a fluid. According to one embodiment, the invention directs acoustic energy at selected naturally occurring nucleation features to control motion in the fluid. In another embodiment, the invention provides focussed or unfocussed acoustic energy to selectively placed nucleation features to control fluid motion. According to one embodiment, the invention includes an acoustic source, a controller for controlling operation of the acoustic source, and one or more nucleation features located proximate to or in the fluid to be controlled.
Type:
Application
Filed:
January 25, 2010
Publication date:
May 20, 2010
Applicant:
Covaris, Inc.
Inventors:
James A. Laugharn, JR., Brevard S. Garrison
Abstract: Apparatus and methods are disclosed for treating a sample by selectively controlling sonic energy and/or selectively controlling the location of the sample relative to the sonic energy.
Type:
Grant
Filed:
August 20, 2007
Date of Patent:
March 30, 2010
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: Acoustic energy is used to control motion in a fluid. According to one embodiment, the invention directs acoustic energy at selected naturally occurring nucleation features to control motion in the fluid. In another embodiment, the invention provides focussed or unfocussed acoustic energy to selectively placed nucleation features to control fluid motion. According to one embodiment, the invention includes an acoustic source, a controller for controlling operation of the acoustic source, and one or more nucleation features located proximate to or in the fluid to be controlled.
Type:
Grant
Filed:
June 27, 2005
Date of Patent:
March 30, 2010
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: The invention, in various embodiments, provides systems, methods and devices relating to processing a sample. Aspects presented herein relate to collecting, stabilizing, pulverizing, fragmenting, and/or analyzing biological and non-biological sample specimens. Before constituents of sample specimens are analyzed, the sample specimens may be fragmented into a plurality of smaller specimens. Such smaller specimens may then be stored, analyzed, or further processed.
Type:
Grant
Filed:
December 31, 2007
Date of Patent:
March 16, 2010
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: The present invention provides systems, methods, and devices for using acoustic energy. In some embodiments, a fluid bath may be provided in the system where the fluid bath quality may be monitored using acoustic energy. An assessment of fluid bath quality can be determined through a comparison that is made of an initial power signal of the acoustic energy with a reflected power signal of the acoustic energy.
Type:
Application
Filed:
June 17, 2009
Publication date:
January 21, 2010
Applicant:
Covaris, Inc.
Inventors:
James A. Laugharn, JR., Brevard S. Garrison, Robert McKnight, Douglas A. Yates
Abstract: Method and apparatus for controlling acoustic treatment of a sample including a liquid. A processing volume in which the sample is acoustically treated may be controlled, e.g., by positioning a suitable element so as to reduce and/or eliminate a headspace at a sample/gas interface. An interaction between the acoustic energy and the sample may be controlled, e.g., by using an energy director positioned at least partially in the sample that helps to reduce splashing or other sample ejection that would otherwise occur.
Abstract: Apparatus and methods are disclosed for treating a sample by selectively controlling sonic energy and/or selectively controlling the location of the sample relative to the sonic energy.
Type:
Grant
Filed:
February 11, 2004
Date of Patent:
April 21, 2009
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: The invention, in various embodiments, provides systems, methods and devices relating to processing a sample. A vessel is described for containing a sample. The vessel includes a reversibly sealable chamber for containing the sample which has a flexible portion to allow the vessel to deform nondestructively in response to a mechanical impact to fragment the sample. In certain embodiments the vessel may include a port for reversibly engaging with a second vessel to enable transfer of material between the two vessels while maintaining a barrier between the sample and an external environment. The vessel may be exposed to mechanical impacts of various energies and at various temperatures, and the internal surface of the structural barrier of the vessel may be treated with various chemical agents to maintain integrity of the sample.
Type:
Grant
Filed:
December 2, 2004
Date of Patent:
February 12, 2008
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: Apparatus and methods are disclosed for treating a sample by selectively controlling sonic energy and/or selectively controlling the location of the sample relative to the sonic energy.
Type:
Grant
Filed:
December 7, 2004
Date of Patent:
February 12, 2008
Assignee:
Covaris, Inc.
Inventors:
James A. Laugharn, Jr., Brevard S. Garrison
Abstract: This invention relates to systems and methods for applying acoustic energy to a sample. According to one aspect of the invention, a system comprises a housing, a chamber for receiving the sample, an acoustic energy source for providing a focused acoustic field to the sample according to a treatment protocol, a processor for determining the treatment protocol, a sensor for detecting information about the sample, and a user interface for communicating with a user.
Type:
Application
Filed:
August 1, 2007
Publication date:
February 7, 2008
Applicant:
Covaris, Inc.
Inventors:
James Laugharn, Brevard Garrison, Douglas Yates