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公开(公告)号：US11786895B2
公开(公告)日：2023-10-17
申请号：US17739705
申请日：2022-05-09
发明人： Jamieson W. Crawford , Ravi Attri , Christopher A. Battles , Benjamin R. Bartfeld , Gregory R. Hires
CPC分类号： B01L3/50215 , B01D17/0217 , B01D21/2405 , G01N1/34 , G01N1/4077 , B01D21/262 , G01N33/491 , G01N2001/4083 , Y10T436/25375
摘要： A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.
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公开(公告)号：US11318459B2
公开(公告)日：2022-05-03
申请号：US14426555
申请日：2013-09-04
发明人： Song Shi , Mei Yang , Klaus W. Berndt , Robert J. Losada , Jamieson W. Crawford , Ravi Attri , Christopher A. Battles , Benjamin R. Bartfeld , Gregory R. Hires
摘要： A method for detecting the presence of a microorganism in a fluid sample is disclosed. The method includes providing a fluid specimen within a specimen collection container having a sidewall defining an interior therein. The interior includes a mechanical separator adapted for separating the fluid sample into first and second phases within the specimen collection container and a sensing element capable of detecting the presence of a microorganism disposed therein. The method includes subjecting the specimen collection container to applied rotational force to isolate a concentrated microorganism region. The method also includes detecting by a sensing element the presence or absence of a microorganism within the concentrated microorganism region.
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公开(公告)号：US20200009552A1
公开(公告)日：2020-01-09
申请号：US16574515
申请日：2019-09-18
发明人： Jamieson W. Crawford , Ravi Attri , Christopher A. Battles , Benjamin R. Bartfeld , Gregory R. Hires
摘要： A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.
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公开(公告)号：US10350591B2
公开(公告)日：2019-07-16
申请号：US15616315
申请日：2017-06-07
摘要： A mechanical separator for separating a fluid sample into first and second phases is disclosed. The mechanical separator includes a float having a passageway extending between first and second ends thereof with a pierceable head enclosing the first end of the float, a ballast longitudinally moveable with respect to the float, and a bellows extending between a portion of the float and a portion of the ballast. The bellows is adapted for deformation upon longitudinal movement of the float and the ballast, with the bellows isolated from the pierceable head. The float has a first density and the ballast has a second density greater than the first density. The bellows is structured for sealing engagement with a cylindrical wall of a tube, and the pierceable head is structured for application of a puncture tip therethrough. The separation device is suitable for use with a standard medical collection tube.
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公开(公告)号：US20180361064A1
公开(公告)日：2018-12-20
申请号：US16111786
申请日：2018-08-24
摘要： A closure for use with a specimen collection container is disclosed. The closure includes a base portion having a first end adapted for engagement with an open end of the specimen collection container, and a second end adapted for receiving a portion of a syringe assembly therein. The closure also includes a luer fitting connected to the base portion and having at least one channel for venting an interior of the specimen collection container to atmosphere during introduction of a fluid specimen from the syringe assembly into the specimen collection container. The closure further includes a shielding portion connected to the base portion and adapted to transition from an open position in which fluid communication is established between the first end and the second end through the luer fitting, to a closed position in which the luer fitting is fully shielded by the shielding portion.
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公开(公告)号：US20180154355A1
公开(公告)日：2018-06-07
申请号：US15888238
申请日：2018-02-05
发明人： Jamieson W. Crawford , Ravi Attri , Christopher A. Battles , Benjamin R. Bartfeld , Gregory R. Hires
摘要： A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.
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公开(公告)号：US09878130B2
公开(公告)日：2018-01-30
申请号：US15193450
申请日：2016-06-27
发明人： Jamieson W. Crawford
CPC分类号： A61M25/0631 , A61M5/3204 , A61M5/321 , A61M5/3213 , A61M5/326 , A61M25/0637
摘要： A shieldable needle device includes a hub with and a needle cannula having a puncture tip extending from a forward end thereof, and a shield member in telescoping association with the hub. At least one of the hub and the shield member are adapted for relative axial movement with respect to the other between a first position in which the puncture tip of the needle cannula is exposed from a forward end of the shield member and a second position in which the puncture tip of the needle cannula is encompassed within the shield member. A drive member extends between the hub and the shield member, biasing the hub and the shield member axially away from each other. A packaging cover may further extend about the needle cannula, applying external pressure between the cooperating portions of the hub and the shield.
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公开(公告)号：US20170251966A1
公开(公告)日：2017-09-07
申请号：US15601253
申请日：2017-05-22
发明人： Jamieson W. Crawford , Bradley M. Wilkinson , Chee Leong Alvin Tan , Tiong Yee Sim , C. Mark Newby , Jon Yaohan Moh , Robert G. Ellis , Neville Yu Leng Chia , Benjamin R. Bartfeld
摘要： A needle assembly is disclosed. The needle assembly includes a housing having a flash chamber, and having a distal end and a proximal end engageable with a specimen collection container. The assembly includes a cannula having a patient end, a non-patient end, and a sidewall extending therebetween defining a cannula interior. The patient end of the cannula projects at least partially from the distal end of the housing, and the cannula interior is in fluid communication with the flash chamber. The assembly further includes a shield restrainably engaged with a portion of the housing and axially transitionable over the patient cannula from a retracted position in which the patient end is exposed, to an extended position in which the patient end is shielded by at least a portion of the shield, wherein at least a portion of the flash chamber is visible in the retracted position.
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公开(公告)号：US09700886B2
公开(公告)日：2017-07-11
申请号：US15251616
申请日：2016-08-30
CPC分类号： B01L3/50215 , B01L2200/0689 , B01L2300/044 , B01L2300/048 , B01L2300/0832 , B01L2300/0858 , B01L2300/123 , B04B7/08 , Y10T29/49826 , Y10T436/25375
摘要： A mechanical separator for separating a fluid sample into first and second phases is disclosed. The mechanical separator includes a float having a passageway extending between first and second ends thereof with a pierceable head enclosing the first end of the float, a ballast longitudinally moveable with respect to the float, and a bellows extending between a portion of the float and a portion of the ballast. The bellows is adapted for deformation upon longitudinal movement of the float and the ballast, with the bellows isolated from the pierceable head. The float has a first density and the ballast has a second density greater than the first density. The bellows is structured for sealing engagement with a cylindrical wall of a tube, and the pierceable head is structured for application of a puncture tip therethrough. The separation device is suitable for use with a standard medical collection tube.
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公开(公告)号：US09364828B2
公开(公告)日：2016-06-14
申请号：US13956661
申请日：2013-08-01
发明人： Jamieson W. Crawford , Ravi Attri , Christopher A. Battles , Benjamin R. Bartfeld , Gregory R. HIres
CPC分类号： B01L3/50215 , B01D17/0217 , B01D21/2405 , B01D21/262 , G01N1/34 , G01N1/4077 , G01N33/491 , G01N2001/4083 , Y10T436/25375
摘要： A mechanical separator for separating a fluid sample into first and second phases within a collection container is disclosed. The mechanical separator may have a separator body having a through-hole defined therein, with the through-hole adapted for allowing fluid to pass therethrough. The separator body includes a float, having a first density, and a ballast, having a second density greater than the first density. A portion of the float is connected to a portion of the ballast. Optionally, the float may include a first extended tab adjacent a first opening of the through-hole and a second extended tab adjacent the second opening of the through-hole. In certain configurations, the separator body also includes an extended tab band disposed about an outer surface of the float. The separator body may also include an engagement band circumferentially disposed about at least a portion of the separator body.
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