Patents by Inventor Jeffrey C. Pederson
Jeffrey C. Pederson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10047334Abstract: A biological sterilization indicator (BI). The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a substrate positioned in the housing between the first chamber and the second chamber. The substrate can be positioned in fluid communication with the first chamber and the second chamber, and the substrate can be further positioned such that the substrate is not in direct contact with the source of biological activity.Type: GrantFiled: March 9, 2016Date of Patent: August 14, 2018Assignee: 3M Innovative Properties CompanyInventors: Sailaja Chandrapati, Heather M. Webb, Jeffrey C. Pederson, Jeffrey D. Smith, RuthAnn R. Duda, Brian J. Engel
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Patent number: 9717812Abstract: A biological sterilization indicator, system, and methods of determining the effectiveness of a sterilization process. The biological sterilization indicator can include a locus of spores, a reservoir containing a liquid, and a sterilant path positioned to provide fluid communication between ambience and the locus of spores. The reservoir can have a closed state in which the reservoir is not in fluid communication with the locus of spores and an open state in which the reservoir is in fluid communication with the locus of spores. The biological sterilization indicator system can include the biological sterilization indicator and a detection device adapted to be coupled to the biological sterilization indicator. In some embodiments, the method can include assaying the spores for a detectable change in a characteristic, and detecting substantially all of the detectable change.Type: GrantFiled: February 18, 2015Date of Patent: August 1, 2017Assignee: 3M INNOVATIVE PROPERTIES CO.Inventors: Sailaja Chandrapati, Jeffrey C. Pederson, Heather M. Webb, Jeffrey D. Smith, Kurt J. Halverson, Bryan S. Behun, Peter D. Ludowise
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Patent number: 9701996Abstract: A biological sterilization indicator (BI) and a method of using same for assaying the lethality of a sterilization process. The BI can include a housing, which can include a first portion, and a second portion, which can be movable with respect to the first portion between a first and second position. The BI can further include a frangible container comprising a liquid. The BI can further include a spore reservoir and a projection positioned in the housing. The projection can be configured to fracture the container when the second portion of the housing is moved from the first position to the second position. The method can include maintaining a minimal cross-sectional area of space around the container when the second portion of the housing is in the first position, and fracturing the container in response to moving the second portion between the first and second positions.Type: GrantFiled: February 17, 2015Date of Patent: July 11, 2017Assignee: 3M Innovative Properties CompanyInventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati
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Patent number: 9540677Abstract: A biological sterilization indicator (BI) and method of using same. The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a first fluid path positioned to fluidly couple the first chamber and the second chamber, and a second fluid path positioned to allow displaced gas to move out of the second chamber. The method can include moving displaced gas out of the second chamber via the second fluid path as a sterilant is moved into the second chamber via the first fluid path and/or as the liquid is moved into the second chamber via the first fluid path.Type: GrantFiled: September 17, 2014Date of Patent: January 10, 2017Inventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati, RuthAnn R. Duda
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Patent number: 9428786Abstract: A biological sterilization indicator (BI) system and method. The system can include a BI and a reading apparatus comprising a well. The BI can include a housing, which can include a first portion, and a second portion movable between a first “unactivated” position and a second “activated” position. The BI can further include a frangible container containing a liquid and dimensioned to be positioned in the housing. The reading apparatus can be configured to detect activation of the biological sterilization indicator, for example, by detecting that the second portion is in the second position, and/or by detecting that the liquid from the frangible container is present in a specific chamber of the biological sterilization indicator. The method can include positioning the BI in the well of the reading apparatus and detecting activation, for example, by detecting one or more of the above conditions.Type: GrantFiled: August 18, 2015Date of Patent: August 30, 2016Inventors: Jeffrey C. Pederson, Sailaja Chandrapati, Bryan S. Behun, Barry W. Robole, Leroy J. Longworth
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Patent number: 9410180Abstract: A biological sterilization indicator (BI) system and method. The system can include a BI and a reading apparatus comprising a well. The BI can include a housing, which can include a first portion, and a second portion movable between a first “unactivated” position and a second “activated” position. The reading apparatus can detect at least one of (i) when the well is empty; (ii) when the biological sterilization indicator is positioned in the well with the second portion of the housing in the first position, and (iii) when the biological sterilization indicator is positioned in the well with the second portion of the housing in the second position. The method can include detecting at least one of the above conditions, which can be used to detect an activation status of the biological sterilization indicator.Type: GrantFiled: October 28, 2011Date of Patent: August 9, 2016Inventors: Jeffrey C. Pederson, Sailaja Chandrapati, Bryan S. Behun, Barry W. Robole, Leroy J. Longworth, Kaileen Chen
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Publication number: 20160186120Abstract: A biological sterilization indicator (BI). The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a substrate positioned in the housing between the first chamber and the second chamber. The substrate can be positioned in fluid communication with the first chamber and the second chamber, and the substrate can be further positioned such that the substrate is not in direct contact with the source of biological activity.Type: ApplicationFiled: March 9, 2016Publication date: June 30, 2016Inventors: Sailaja Chandrapati, Heather M. Webb, Jeffrey C. Pederson, Jeffrey D. Smith, RuthAnn R. Duda, Brian J. Engel
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Patent number: 9322046Abstract: A biological sterilization indicator (BI). The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a substrate positioned in the housing between the first chamber and the second chamber. The substrate can be positioned in fluid communication with the first chamber and the second chamber, and the substrate can be further positioned such that the substrate is not in direct contact with the source of biological activity.Type: GrantFiled: October 28, 2011Date of Patent: April 26, 2016Assignee: 3M Innovative Properties CompanyInventors: Sailaja Chandrapati, Heather M. Webb, Jeffrey C. Pederson, Jeffrey D. Smith, RuthAnn R. Duda, Brian J. Engel
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Patent number: 9279141Abstract: The present invention provides method of detecting a predetermined biological activity. The method includes using an aqueous mixture comprising a first indicator reagent with a first absorption spectrum and a second indicator reagent. The second indicator reagent is converted by the predetermined biological activity to a second biological derivative with a second emission spectrum. The first absorbance spectrum includes detectable absorbance in at least a portion of wavelengths present in the second emission spectrum. The first indicator reagent is received and concentrated from an aqueous liquid by a substrate, facilitating the detection of the second biological derivative.Type: GrantFiled: August 7, 2014Date of Patent: March 8, 2016Assignee: 3M Innovative Properties CompanyInventors: Sailaja Chandrapati, Heather M. Webb, Jeffrey C. Pederson, Kurt J. Halverson, Brian J. Engel
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Publication number: 20150353984Abstract: A biological sterilization indicator (BI) system and method. The system can include a BI and a reading apparatus comprising a well. The BI can include a housing, which can include a first portion, and a second portion movable between a first “unactivated” position and a second “activated” position. The BI can further include a frangible container containing a liquid and dimensioned to be positioned in the housing. The reading apparatus can be configured to detect activation of the biological sterilization indicator, for example, by detecting that the second portion is in the second position, and/or by detecting that the liquid from the frangible container is present in a specific chamber of the biological sterilization indicator. The method can include positioning the BI in the well of the reading apparatus and detecting activation, for example, by detecting one or more of the above conditions.Type: ApplicationFiled: August 18, 2015Publication date: December 10, 2015Inventors: Jeffrey C. Pederson, Sailaja Chandrapati, Bryan S. Behun, Barry W. Robole, Leroy J. Longworth
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Patent number: 9145573Abstract: A biological sterilization indicator (BI) system and method. The system can include a BI and a reading apparatus comprising a well. The BI can include a housing, which can include a first portion, and a second portion movable between a first “unactivated” position and a second “activated” position. The BI can further include a frangible container containing a liquid and dimensioned to be positioned in the housing. The reading apparatus can be configured to detect activation of the biological sterilization indicator, for example, by detecting that the second portion is in the second position, and/or by detecting that the liquid from the frangible container is present in a specific chamber of the biological sterilization indicator. The method can include positioning the BI in the well of the reading apparatus and detecting activation, for example, by detecting one or more of the above conditions.Type: GrantFiled: October 28, 2011Date of Patent: September 29, 2015Assignee: 3M Innovative Properties CompanyInventors: Jeffrey C. Pederson, Sailaja Chandrapati, Bryan S. Behun, Barry W. Robole, Leroy J. Longworth
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Publication number: 20150167047Abstract: A biological sterilization indicator (BI) and a method of using same for assaying the lethality of a sterilization process. The BI can include a housing, which can include a first portion, and a second portion, which can be movable with respect to the first portion between a first and second position. The BI can further include a frangible container comprising a liquid. The BI can further include a spore reservoir and a projection positioned in the housing. The projection can be configured to fracture the container when the second portion of the housing is moved from the first position to the second position. The method can include maintaining a minimal cross-sectional area of space around the container when the second portion of the housing is in the first position, and fracturing the container in response to moving the second portion between the first and second positions.Type: ApplicationFiled: February 17, 2015Publication date: June 18, 2015Inventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati
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Publication number: 20150165082Abstract: A biological sterilization indicator, system, and methods of determining the effectiveness of a sterilization process. The biological sterilization indicator can include a locus of spores, a reservoir containing a liquid, and a sterilant path positioned to provide fluid communication between ambience and the locus of spores. The reservoir can have a closed state in which the reservoir is not in fluid communication with the locus of spores and an open state in which the reservoir is in fluid communication with the locus of spores. The biological sterilization indicator system can include the biological sterilization indicator and a detection device adapted to be coupled to the biological sterilization indicator. In some embodiments, the method can include assaying the spores for a detectable change in a characteristic, and detecting substantially all of the detectable change.Type: ApplicationFiled: February 18, 2015Publication date: June 18, 2015Inventors: Sailaja Chandrapati, Jeffrey C. Pederson, Heather M. Webb, Jeffrey D. Smith, Kurt J. Halverson, Bryan S. Behun, Peter D. Ludowise
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Patent number: 8980622Abstract: A biological sterilization indicator (BI) and a method of using same for assaying the lethality of a sterilization process. The BI can include a housing, which can include a first portion, and a second portion, which can be movable with respect to the first portion between a first and second position. The BI can further include a frangible container comprising a liquid. The BI can further include a spore reservoir and a projection positioned in the housing. The projection can be configured to fracture the container when the second portion of the housing is moved from the first position to the second position. The method can include maintaining a minimal cross-sectional area of space around the container when the second portion of the housing is in the first position, and fracturing the container in response to moving the second portion between the first and second positions.Type: GrantFiled: July 6, 2010Date of Patent: March 17, 2015Assignee: 3M Innovative Properties CompanyInventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati
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Patent number: 8969029Abstract: A biological sterilization indicator, system, and methods of determining the effectiveness of a sterilization process. The biological sterilization indicator can include a locus of spores, a reservoir containing a liquid, and a sterilant path positioned to provide fluid communication between ambience and the locus of spores. The reservoir can have a closed state in which the reservoir is not in fluid communication with the locus of spores and an open state in which the reservoir is in fluid communication with the locus of spores. The biological sterilization indicator system can include the biological sterilization indicator and a detection device adapted to be coupled to the biological sterilization indicator. In some embodiments, the method can include assaying the spores for a detectable change in a characteristic, and detecting substantially all of the detectable change.Type: GrantFiled: October 12, 2009Date of Patent: March 3, 2015Assignee: 3M Innovative Properties CompanyInventors: Sailaja Chandrapati, Jeffrey C. Pederson, Heather M. Webb, Jeffrey D. Smith, Kurt J. Halverson, Bryan S. Behun, Peter D. Ludowise
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Publication number: 20150004682Abstract: A biological sterilization indicator (BI) and method of using same. The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a first fluid path positioned to fluidly couple the first chamber and the second chamber, and a second fluid path positioned to allow displaced gas to move out of the second chamber. The method can include moving displaced gas out of the second chamber via the second fluid path as a sterilant is moved into the second chamber via the first fluid path and/or as the liquid is moved into the second chamber via the first fluid path.Type: ApplicationFiled: September 17, 2014Publication date: January 1, 2015Inventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati, RuthAnn R. Duda
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Publication number: 20140349335Abstract: The present invention provides method of detecting a predetermined biological activity. The method includes using an aqueous mixture comprising a first indicator reagent with a first absorption spectrum and a second indicator reagent. The second indicator reagent is converted by the predetermined biological activity to a second biological derivative with a second emission spectrum. The first absorbance spectrum includes detectable absorbance in at least a portion of wavelengths present in the second emission spectrum. The first indicator reagent is received and concentrated from an aqueous liquid by a substrate, facilitating the detection of the second biological derivative.Type: ApplicationFiled: August 7, 2014Publication date: November 27, 2014Inventors: Sailaja CHANDRAPATI, Heather M. WEBB, Jeffrey C. PEDERSON, Kurt J. HALVERSON, Brian J. ENGEL
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Patent number: 8840837Abstract: A biological sterilization indicator (BI) and method of using same. The BI can include a housing, and a container positioned in the housing. The container can contain a liquid and at least a portion of the container can be frangible. The BI can further include a first chamber and a second chamber. The second chamber can include at least one source of biological activity. The BI can further include a first fluid path positioned to fluidly couple the first chamber and the second chamber, and a second fluid path positioned to allow displaced gas to move out of the second chamber. The method can include moving displaced gas out of the second chamber via the second fluid path as a sterilant is moved into the second chamber via the first fluid path and/or as the liquid is moved into the second chamber via the first fluid path.Type: GrantFiled: October 28, 2011Date of Patent: September 23, 2014Assignee: 3M Innovative Properties CompanyInventors: Jeffrey D. Smith, Jeffrey C. Pederson, Sailaja Chandrapati, RuthAnn R. Duda
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Patent number: 8834792Abstract: A system and method for processing sample processing devices. The system can include a base plate adapted to rotate about a rotation axis. The system can further include a cover including a first projection, and a housing. A portion of the housing can be movable with respect to the base plate between an open position and a closed position, and can include a second projection. The first projection and the second projection can be adapted to be coupled together when the portion is in the open position and decoupled when the portion is in the closed position. The method can include coupling the cover to the portion of the housing, moving the portion of the housing from the open position to the closed position, and rotating the base plate about the rotation axis.Type: GrantFiled: November 13, 2009Date of Patent: September 16, 2014Assignee: 3M Innovative Properties CompanyInventors: Barry W. Robole, William Bedingham, Peter D. Ludowise, Jeffrey C. Pederson
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Patent number: 8802392Abstract: The present invention provides method of detecting a predetermined biological activity. The method includes using an aqueous mixture comprising a first indicator reagent with a first absorption spectrum and a second indicator reagent. The second indicator reagent is converted by the predetermined biological activity to a second biological derivative with a second emission spectrum. The first absorbance spectrum includes detectable absorbance in at least a portion of wavelengths present in the second emission spectrum. The first indicator reagent is received and concentrated from an aqueous liquid by a substrate, facilitating the detection of the second biological derivative.Type: GrantFiled: October 28, 2011Date of Patent: August 12, 2014Assignee: 3M Innovative Properties CompanyInventors: Sailaja Chandrapati, Heather M. Webb, Jeffrey C. Pederson, Kurt J. Halverson, Brian R. Engel