公开(公告)号：EP0300026A4

公开(公告)日：1990-05-14

申请号：EP88901721

申请日：1988-01-29

Applicant: BAXTER INT

Inventor： WILLIAMSON WARREN P ,  SCHOENDORFER DONALD W

IPC: A61M1/00 ,  A61B5/15 ,  A61M1/02 ,  A61M1/14

CPC classification number: A61H9/0078 ,  A61H2201/165 ,  A61H2230/06 ,  A61M1/02 ,  A61M2230/04 ,  A61M2230/005

Abstract: A limb stimulator is engaged with a lower portion of a patient's limb for facilitating sustained venous blood flow therefrom toward a phlebotomy needle (14). The stimulator may be an inflatable squeeze bulb (100) adapted to engage a human hand and to be squeezed thereby when inflated. The stimulator may also, or alternatively, include a pressurizable member (200) substantially surrounding a lower portion of the limb and adapted to apply external pressure thereto when periodically pressurized so as to periodically (e.g., in approximate synchronism with natural pulsatile blood movements in the limb) express venous blood upwardly through the limb to the needle (14). Inflation of the hand-held squeeze bulb (100) serves as a tactile stimulus to the patient to assist in venous blood movements towards the needle by muscle and tendon flexure in the lower part of the limb and may also be periodically activated.

公开(公告)号：DE69132172T2

公开(公告)日：2001-01-25

申请号：DE69132172

申请日：1991-06-12

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W

IPC: B01D61/16 ,  A61M1/02 ,  A61M1/30 ,  A61M1/36

Abstract: In the method, either no anticoagulant solution, or an aliquot of anticoagulant solution is added to whole blood upstream of a separator. Anticoagulant solution is added to a separated component downstream of the separator.

公开(公告)号：AU597157B2

公开(公告)日：1990-05-24

申请号：AU1295388

申请日：1988-01-29

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W ,  WILLIAMSON WARREN P

IPC: A61M1/00 ,  A61B5/15 ,  A61M1/02 ,  A61M1/14

Abstract: A limb stimulator is engaged with a lower portion of a patient's limb for facilitating sustained venous blood flow therefrom toward a phlebotomy needle when the stimulator is activated. The stimulator may be an inflatable squeeze bulb adapted to engage a human hand and to be squeezed thereby when inflated. The stimulator may also, or alternatively, include a pressurizable member substantially surrounding a lower portion of the limb and adapted to apply external pressure thereto when periodically pressurized so as to periodically (e.g., in approximate synchronism with natural pulsitile blood movements in the limb) express venous blood upwardly through the limb to the needle. Inflation of the hand-held squeeze bulb serves as a tactile stimulus to the patient to assist in venous blood movements towards the needle by muscle and tendon flexure in the lower part of the limb and may also be periodically activated (e.g., in approximate synchronism with natural pulsatile blood movements in the limb).

公开(公告)号：CA2154347A1

公开(公告)日：1994-09-01

申请号：CA2154347

申请日：1994-02-17

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W

IPC: A61M1/02 ,  A61M1/30 ,  A61M1/36

Abstract: An extracorporeal blood processing method and system (14) wherein blood is extracted from a mammalian subject through a blood withdrawal tube (16) having a blood pump (18), such as a peristaltic pump, positioned thereon. A "distal segment" of the blood withdrawal tube (16) extends from the mammalian subject to the inlet side of withdrawal pump (18). A "proximal segment" of the blood withdrawal tube (16) extends from the outlet side of the blood pump (18) to an extracorporeal blood processing apparatus (14). An anticoagulant feed tube (24) is connected to the "proximal segment" of the blood withdrawal tube (16) such that a flow of anticoagulant solution may be combined with blood exiting the outlet of said blood pump (18) and passing through the "proximal segment" of said blood withdrawal tubing (16).

公开(公告)号：AU647151B2

公开(公告)日：1994-03-17

申请号：AU8051591

申请日：1991-06-12

Applicant: BAXTER INT

Inventor： BENJAMIN GRANT S ,  RITCHEY BRIAN ,  SCHOENDORFER DONALD W

IPC: A61M5/158 ,  A61M39/12 ,  A61M5/00 ,  A61M5/142

公开(公告)号：AU2944489A

公开(公告)日：1989-06-14

申请号：AU2944489

申请日：1989-11-22

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W ,  PRINCE PAUL R

IPC: A61M1/02 ,  A61M1/30 ,  A61M1/36 ,  A61M37/00

公开(公告)号：AU2558288A

公开(公告)日：1989-05-02

申请号：AU2558288

申请日：1988-10-03

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W

IPC: A61M1/02 ,  A61M1/34 ,  A61M1/36 ,  A61M1/00

Abstract: A method of wetting a plasmapheresis filter with anticoagulant in a plasmapheresis system having a venepuncture needle, a plasma separation device connected in series by a fluid conduit, including operating the system such that an initial limited volume charge of anticoagulant is introduced into the conduit (for wetting the filter of the separation device) in advance of whole blood flowing from the donor towards to the separation device (and pushing the anticoagulant charge ahead of the whole blood into the separation device).

公开(公告)号：DE3854927D1

公开(公告)日：1996-02-29

申请号：DE3854927

申请日：1988-11-22

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W ,  PRINCE PAUL R

IPC: A61M1/02 ,  A61M1/30 ,  A61M1/36 ,  A61M1/38

公开(公告)号：CA1328825C

公开(公告)日：1994-04-26

申请号：CA584043

申请日：1988-11-24

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W ,  PRINCE PAUL R

IPC: A61M1/02 ,  A61M1/30 ,  A61M1/36 ,  A61M1/38

Abstract: SINGLE NEEDLE CONTINUOUS HEMAPHERESIS APPARATUS AND METHODS Blood separation is accomplished by alternately extracting blood from and reinfusing blood into a donor by way of a single needle while simultaneously and continuously separating the extracted blood into constituents. A harness set applicable to a hemapheresis instrument includes a dual-compartment reservoir. A first compartment stores blood during extraction for supply to the separator during reinfusion. The second compartment stores packed cells during collection for return to the donor during reinfusion. The collection and reinfusion cycles are alternated rapidly to preclude clotting in the un-anticoagulated portion of the harness tubing between the venepuncture needle and the Y-connection with the anticoagulant line.

公开(公告)号：CA1318864C

公开(公告)日：1993-06-08

申请号：CA584044

申请日：1988-11-24

Applicant: BAXTER INT

Inventor： SCHOENDORFER DONALD W

IPC: A61M1/02 ,  A61M1/30 ,  A61M1/36 ,  B04B5/00 ,  B01D33/15

Abstract: APPARATUS AND METHODS FOR GENERATING PLATELET CONCENTRATE A tubing or harness set is provided having first and second portions sequentially applicable to a microprocessor-controlled hemapheresis instrument for generating platelet concentrate. The first portion includes a reservoir having dual compartments and a separator. The instrument and the first portion of the harness set alternately collect whole blood from the donor and reinfuse packed cells into the donor while simultaneously continuously separating whole blood into packed cells and platelet-rich plasma. Upon collection of a predetermined quantity of platelet-rich plasma, the donor is disconnected from the phlebotomy needle of the harness, the first harness portion is removed from the instrument and the second harness portion is applied to the instrument. The second harness portion includes a separator for receiving platelet-rich plasma from the collection container of the first harness portion and separating such plasma into platelet concentrate and platelet-depleted plasma.