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公开(公告)号：DE69418454T2
公开(公告)日：2000-01-05
申请号：DE69418454
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
Abstract: A blood processing assembly is described. The assembly comprises a separation element (16) for separating blood from a source and a fluid path (18) for conveying blood from the source to the separation element (16). The fluid path (18) includes an in-line cassette (22) having a housing (110) defining an interior, first (T4) and second (T5) pump ports on the housing (110), a first flexible tubing loop (134) extending between the first and second pump ports externally of the housing for engagement with an external peristaltic pumping element (292), a liquid port (T1 to T3,T8 to T10) on the housing attachable to a length of tubing (154) that extends externally of the housing and forms a part of the associated fluid path (18), liquid passages (F1 to F19) formed within the housing and communicating with the liquid port, the first pump port and the second pump port, and valve means (V1 to V10) formed within the housing for controlling liquid flow through the liquid passages and through the associated fluid path. The cassette also comprises a pressure sensing chamber (S1 to S4) which is formed within the housing and communicates with at least one liquid passage (F1 to F19). The sensing chamber (S1 to S4) includes means for transmitting liquid pressure present within the liquid passage to an external sensing element (PS1 to PS4).
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公开(公告)号：DE69416510T2
公开(公告)日：1999-09-23
申请号：DE69416510
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： CHAPMAN ARTHUR S , DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
Abstract: A peristaltic pump tube holder has a body having first and second pump tube connectors extending outside of it. The pump tube connectors extend at an acute angle relative to a surface of the body to receive a flexible tubing loop and orient the tubing loop for engagement with an external peristaltic pump rotor.
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公开(公告)号：DE3784347T2
公开(公告)日：1993-09-16
申请号：DE3784347
申请日：1987-02-25
Applicant: BAXTER INT
Inventor： WILLIAMSON WARREN , PRINCE R
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公开(公告)号：DE69230371D1
公开(公告)日：2000-01-05
申请号：DE69230371
申请日：1992-12-23
Applicant: BAXTER INT
Inventor： CLARK RONALD , WILLIAMSON WARREN
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公开(公告)号：DE69413022D1
公开(公告)日：1998-10-08
申请号：DE69413022
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
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Patent Agency Ranking
公开(公告)号：DE69230371T2
公开(公告)日：2000-08-24
申请号：DE69230371
申请日：1992-12-23
Applicant: BAXTER INT
Inventor： CLARK RONALD , WILLIAMSON WARREN
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公开(公告)号：DE69418454D1
公开(公告)日：1999-06-17
申请号：DE69418454
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
Abstract: A blood processing assembly is described. The assembly comprises a separation element (16) for separating blood from a source and a fluid path (18) for conveying blood from the source to the separation element (16). The fluid path (18) includes an in-line cassette (22) having a housing (110) defining an interior, first (T4) and second (T5) pump ports on the housing (110), a first flexible tubing loop (134) extending between the first and second pump ports externally of the housing for engagement with an external peristaltic pumping element (292), a liquid port (T1 to T3,T8 to T10) on the housing attachable to a length of tubing (154) that extends externally of the housing and forms a part of the associated fluid path (18), liquid passages (F1 to F19) formed within the housing and communicating with the liquid port, the first pump port and the second pump port, and valve means (V1 to V10) formed within the housing for controlling liquid flow through the liquid passages and through the associated fluid path. The cassette also comprises a pressure sensing chamber (S1 to S4) which is formed within the housing and communicates with at least one liquid passage (F1 to F19). The sensing chamber (S1 to S4) includes means for transmitting liquid pressure present within the liquid passage to an external sensing element (PS1 to PS4).
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公开(公告)号：DE69411546T2
公开(公告)日：1999-04-15
申请号：DE69411546
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： CHAPMAN ARTHUR S , WILLIAMSON WARREN
Abstract: A peristaltic pump includes a pump race for receiving a flexible tubing. A rotatable pump rotor carries at least one roller for contacting the tubing. A roller locating mechanism moves the pump roller between a retracted position free of contact with the tubing and an extended position making operative contact with the tubing. A controller operates the pump (i) in a pumping mode, during which the rotor is rotated with the roller located in its extended position, and (ii) in a valving mode, during which rotation of the rotor is terminated and the roller is selectively moved between its extended position to block fluid flow through the tubing and its retracted position to permit fluid flow through the tubing. The pump thus provides a peristaltic pump pumping function, as well as serving as a valve element.
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公开(公告)号：DE69416510D1
公开(公告)日：1999-03-25
申请号：DE69416510
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： CHAPMAN ARTHUR S , DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
Abstract: A peristaltic pump tube holder has a body having first and second pump tube connectors extending outside of it. The pump tube connectors extend at an acute angle relative to a surface of the body to receive a flexible tubing loop and orient the tubing loop for engagement with an external peristaltic pump rotor.
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公开(公告)号：DE69413022T2
公开(公告)日：1999-05-20
申请号：DE69413022
申请日：1994-03-17
Applicant: BAXTER INT
Inventor： DENNEHEY T , BROWN RICHARD , WILLIAMSON WARREN
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