Abstract: The device for the microbiological analysis of a support (41) adapted to contain microorganisms marked by a fluorophore agent comprises illuminating means adapted to illuminate said support (41) comprising two bases (21) on each of which is mounted at least one group of light sources (22), with said sources (22) of that group being regularly spaced from each other to form an array for illuminating said support (41), said bases (21) being fixed to a frame of said device, one on each side of an opening (9) formed in said frame, with said bases (21) being inclined towards each other in the direction of a predetermined location for reception of said support (41) in said device.
Abstract: The present invention provides compact spiral-wound filter elements having cassette-like performance. The invention further provides filtration systems (e.g., TFF systems) and processes (e.g., SPTFF processes) employing compact spiral-wound filter elements having cassette-like performance.
Abstract: A testing apparatus employs an interface module removably attached to a filter testing device. The interface module includes a first flowpath communicating with an outlet of the testing device and a housing of the filter device, a first valve disposed in the first flowpath, a second flowpath communicating with the housing of the filter device and an exhaust, a second valve disposed in the second flowpath, and an enclosure enclosing the first flowpath, the first valve, the second flowpath, and the second valve. The interface module is cleanable and/or sterilizable, and replaceable. A filter integrity testing method uses an interface module to prevent contamination of the testing device and cross-contamination of different filter devices and avoid liquid ingress into the testing device.
Abstract: A scaling tool for replicating filtration characteristics of a large-scale filtration device, the scaling tool comprising a housing having a fluid inlet and a fluid outlet, and a filter receiving region in fluid communication with the fluid inlet and the fluid outlet and configured to contain a membrane comprising one or more pleats, the filter receiving region being defined by a rigid wall framework configured to hold the one or more pleats of the membrane and compress the pleats in an amount effective to replicate the filtration performance of the large-scale filtration device. Also disclosed is a methodology for configuring a filter receiving region in a scaling tool.
Type:
Application
Filed:
August 23, 2017
Publication date:
July 25, 2019
Applicant:
EMD Millipore Corporation
Inventors:
Songhua Liu, Michael Lynch, Ryan Sylvia, Joseph Almasian, Salvatore Giglia, Luc Messier
Abstract: Methods of filtering a liquid feed are disclosed. In one version, the method comprises passing a liquid feed through a single pass tangential flow filtration (SPTFF) system and recovering the retentate and permeate from the system in separate containers without recirculation through the SPTFF system. In another version, the method of filtering a liquid feed, comprises passing a liquid feed through a tangential flow filtration (TFF) system, recovering permeate and a portion of the retentate from the system in separate containers without recirculation through the TFF system, and recirculating the remainder of the retentate through the TFF system at least once. The methods can be performed using an SPTFF or a TFF system that comprises manifold segments to serialize the flow path of the feed and retentate without requiring diverter plates.
Type:
Grant
Filed:
August 28, 2015
Date of Patent:
July 16, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Jonathan Steen, Mikhail Kozlov, Herbert Lutz, Joseph Parrella, Elizabeth M. Goodrich, Bala Raghunath
Abstract: A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.
Abstract: A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.
Abstract: The present invention provides novel and improved protein purification processes which incorporate certain types of carbonaceous materials and result in effective and selective removal of certain undesirable impurities without adversely effecting the yield of the desired protein product.
Type:
Grant
Filed:
June 23, 2015
Date of Patent:
May 14, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Nanying Bian, Christopher Gillespie, Matthew T. Stone, Mikhail Kozlov, Jie Chen, Martin Siwak
Abstract: A biocontainer film enhanced with an abrasion resistant or “cut-proof” substrate. Such substrates can be combined with current biocontainer materials, via various techniques of embedding, coextrusion or laminating, to maintain the cleanliness and low extractables already validated for biotech manufacturing. The substrate of choice may be constructed from materials known to be more resistant to abrasion and sharp razor type cuts or from materials oriented in such a way to prevent puncture to occur. The new substrate must also be flexible to allow for typical folding as demonstrated by current packaging practices. The new substrate may be constructed from materials other than polymers such as metal, glass or carbon or in combination with polymers. A non-constrained pressure test is also disclosed.
Type:
Grant
Filed:
March 22, 2016
Date of Patent:
April 30, 2019
Assignee:
EMD Millipore Corporation
Inventors:
David DeCoste, Joseph Cianciolo, Michael Furbush, John Saragosa
Abstract: In one embodiment, a removable pneumatic connector, comprises a body having a plurality of bores passing through, each bore surrounded by a sealing member on an inner surface of the body. A plurality of gas lines may be placed within a corresponding bore. A vacuum port is disposed on the inner surface of the body, and an outer seal on the inner surface of the body surrounds the sealing members and the vacuum port. A vacuum line may be placed within the vacuum port, and configured to deliver negative pressure to the vacuum port. A vacuum holding area is created in the volume between the outer seal and each of the sealing members when the inner surface of the body is placed against a substrate. When the vacuum line is activated, a vacuum is created within the vacuum holding area, creating a positive seal between the body and the substrate.
Type:
Grant
Filed:
December 5, 2017
Date of Patent:
April 30, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Terry Gaige, Andrew Zayac, Paul Sydlowski, Philip Lee
Abstract: A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.
Type:
Grant
Filed:
March 2, 2017
Date of Patent:
April 9, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Onur Y. Kas, Mikhail Kozlov, Wilson Moya, Sherry A. Leon, Philip Goddard, Jibin Hao, Gabriel Tkacik
Abstract: A disposable device for the sterile transfer of fluids, such as liquids or gases, includes a body, a bore formed through at least a portion of the interior of the body, and a linearly moveable plunger contained within the bore. The body is formed from a rotating section and a stationary section. Partial rotation of the rotating section around a portion of the stationary section and the plunger drives the plunger linearly within the bore, opening and closing the device. The plunger includes at least a first and a second opening, and a fluid channel in the interior of the plunger connecting the first and second openings forming a fluid pathway to downstream components when the device is open. A termination component at one end of the plunger connects to a downstream component. A flange at one end of the body attaches to an upstream component.
Type:
Grant
Filed:
March 28, 2016
Date of Patent:
April 2, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Jeff Hartnett, Alf Lofving, Lars Hultquist, Jan Davidsson, Lennart Myhrberg
Abstract: The present invention relates to a selectively soluble polymer capable of binding to a desired molecules in an unclarified mixture containing various biological materials and the methods of using such a polymer to purify a molecule from such a mixture. The polymer is soluble in the mixture under a certain set of process conditions such as pH or temperature and/or salt concentration and is rendered insoluble and precipitates out of solution upon a change in the process conditions. The polymer is capable of binding to the desired molecule (protein, polypeptide, etc) and remains capable of binding to that molecule even after the polymer is precipitated out of solution. The precipitate can then be filtered out from the remainder of the stream and the desired biomolecule is recovered such as by elution and further processed.
Abstract: The present invention provides, in various embodiments, hybrid single-pass tangential flow filtration assemblies, disposable single-pass tangential flow filtration assemblies, scalable single-pass tangential flow filtration assemblies and adaptable modular single-pass tangential flow filtration assemblies. In other embodiments, the invention relates to processes for recovering proteins from the surface of a filtration membrane in a single-pass tangential flow filtration assembly and for cleaning a tangential flow filtration assembly. In additional embodiments, the invention provides methods of increasing the processing capacity of a single-pass tangential flow filtration assembly.
Type:
Grant
Filed:
June 11, 2015
Date of Patent:
February 19, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Herbert Lutz, Joseph Parrella, Bala Raghunath
Abstract: A method of filtering a liquid feed is described, comprising passing a liquid feed through a single pass tangential flow filtration (SPTFF) system and recovering the retentate and permeate from the system in separate containers. A method of filtering a liquid feed is also described comprising passing a liquid feed through a tangential flow filtration (TFF) system, recovering permeate and a portion of the retentate from the system in separate containers without recirculation through the TFF system, and recirculating the remainder of the retentate through the TFF system at least once. The methods of the invention can be performed using an SPTFF or a TFF system that comprises manifold segments to serialize the flow path of the feed and retentate without requiring diverter plates.
Type:
Grant
Filed:
August 28, 2015
Date of Patent:
February 5, 2019
Assignee:
EMD Millipore Corporation
Inventors:
Jonathan Steen, Mikhail Kozlov, Herbert Lutz, Joseph Parrella, Elizabeth M. Goodrich, Bala Raghunath