Abstract:
Novel methods and devices which provide enhanced mixing, and application of two liquid components to form a biomaterial with minimized aerosols, are achieved using airflow rates below about 1.25 liters/minute in combination with a ratio of airflow to total liquid flow of from about 150:1 up to about 1500:1. Preferably the airflow is below about 1 liter/minute, and the ratio of airflow to total liquid flow is from about 200:1 to about 1200:1. The parameters are ideally suited for the spray application of components which form a surgical sealant, e.g., a fibrin sealant. Also a part of the present invention is novel application methods for biomaterial, e.g., surgical sealant, components at liquid flows below 1.9 ml/minute, novel methods involving the mixing of such components on the exit surface of a spray tip (14), or nozzle, novel spray tips (14), biomaterial applicators, and methods for making such applicators.
Abstract:
A centrifuge apparatus which comprises a container (10) including a cylindrical member (11) with a lower rim and a piston member with a tubular piston rod (12). A supporting turntable (1) with a first gripping means (27) releasably grips the lower rim when the container (10) is placed thereon, said supporting turntable (1) being connected with a first activating means (5) for rotating the turntable (1) with the container (10) about the central axis thereof. A rotatably journalled piston activating mechanism activates the piston (12) by a second activating means (21) and is provided with a second gripping means (13) for releasably gripping the piston rod (12). The first gripping means (27) enters into a locking engagement with the inner side of the cylindrical member (11) upon activation of a third activating means (8) when the container (10) is placed on the turntable (1). The second gripping means (13) enters into a locking engagement with the piston rod (12) upon activation of a fourth activating means (15).
Abstract:
A method of applying a mixture or two liquid components kept in their respective container (19) implies that the two components are expelled through their respective outlet (8, 9) of their respective outlet channel (5, 6) in a nozzle head (1) while a gas is simultaneously expelled through a separate outlet (10) in a gas outlet channel (7) in the nozzle head (1). The above outlets (8, 9, 10) are aligned along a substantially rectilinear line, the gas being expelled through the outlet (10) at one end of the line of outlets, and where the volume flow of the gas is adapted to the volume flows of the components in such a manner that outside the nozzle (1) said components are sucked into the jet being expelled through the gas outlet.
Abstract:
A device for separating components such as fibrin monomer from blood by centrifugation about a central axis comprising a first annular chamber (70) defined by an outer cylindrical wall (72) and an inner cylindrical wall (71) both walls being concentriclly accommodated about an axis of rotation, and by a top wall (73) and a bottom wall (74), where the bottom wall is formed by a piston (55) displlaceable within the first. The device furthermore comprises, a second chamber (75) below the first chamber and communicating with said first chamber through a first conduit (4) and being defined by the other cylindrical wall (72), the bottom wall (74) of the first chamber, and another bottom wall (76). The device also comprises a capsule (45) accommodated in the second chamber and including a plurality of compartments for receiving respective compositions promoting the separation.
Abstract:
Novel methods and devices which provide enhanced mixing, and application of two liquid components to form a biomaterial with minimized aerosols, are achieved using airflow rates below about 1.25 liters/minute in combination with a ratio of airflow to total liquid flow of from about 150:1 up to about 1500:1. Preferably the airflow is below about 1 liter/minute, and the ratio of airflow to total liquid flow is from about 200:1 to about 1200:1. The parameters are ideally suited for the spray application of components which form a surgical sealant, e.g., a fibrin sealant. Also a part of the present invention is novel application methods for biomaterial, e.g., surgical sealant, components at liquid flows below 1.9 ml/minute, novel methods involving the mixing of such components on the exit surface of a spray tip (14), or nozzle, novel spray tips (14), biomaterial applicators, and methods for making such applicators.
Abstract:
A device for separating components such as fibrin monomer from blood by centrifugation about a central axis comprising a first annular chamber (70) defined by an outer cylindrical wall (72) and an inner cylindrical wall (71) both walls being concentrically accommodated about an axis of rotation, and by a top wall (73) and a bottom wall (74), where the bottom wall is formed by a piston (55) displaceable within the first chamber. The device including a second chamber (75) below the first chamber and communicating with the first chamber through a first conduit (4) and being defined by the outer cylindrical wall (72), the bottom wall (74) of the first chamber, and another bottom wall (76). The device also includes a capsule (45) accommodated in the second chamber and including a plurality of compartments for receiving respective compositions promoting the separation.
Abstract:
The present invention provides methods and devices for maintaining the integrity of blood products throughout preparation, processing and application to a patient or desired site. Coding means are incorporated onto or into processing and delivery containers which coding means contain information identifying the donor and/orrecipient. Additionally or alternatively the coding means may contain information pertaining to a specific preparation or application process to be carried out. Blood product processors and blood product applicators include decoding means to ensure the blood product is administered to the appropriate recipient and further that it has been prepared and applied according to desired processes.
Abstract:
Novel methods and devices which provide enhanced mixing, and application of two liquid components to form a biomaterial with minimized aerosols, are achieved using airflow rates below about 1.25 liters/minute in combination with a ratio of airflow to total liquid flow of from about 150:1 up to about 1500:1. Preferably the airflow is below about 1 liter/minute, and the ratio of airflow to total liquid flow is from about 200:1 to about 1200:1. The parameters are ideally suited for the spray application of components which form a surgical sealant, e.g., a fibrin sealant. Also a part of the present invention is novel application methods for biomaterial, e.g., surgical sealant, components at liquid flows below 1.9 ml/minute, novel methods involving the mixing of such components on the exit surface of a spray tip (14), or nozzle, novel spray tips (14), biomaterial applicators, and methods for making such applicators.
Abstract:
A centrifuge apparatus which comprises a container (10) including a cylindrical member (11) with a lower rim and a piston member with a tubular piston rod (12). A supporting turntable (1) with a first gripping means (27) releasably grips the lower rim when the container (10) is placed thereon, said supporting turntable (1) being connected with a first activating means (5) for rotating the turntable (1) with the container (10) about the central axis thereof. A rotatably journalled piston activating mechanism activates the piston (12) by a second activating means (21) and is provided with a second gripping means (13) for releasably gripping the piston rod (12). The first gripping means (27) enters into a locking engagement with the inner side of the cylindrical member (11) upon activation of a third activating means (8) when the container (10) is placed on the turntable (1). The second gripping means (13) enters into a locking engagement with the piston rod (12) upon activation of a fourth activating means (15).
Abstract:
A centrifuge apparatus which comprises a container (10) including a cylindrical member (11) with a lower rim and a piston member with a tubular piston rod (12). A supporting turntable (1) with a first gripping means (27) releasably grips the lower rim when the container (10) is placed thereon, said supporting turntable (1) being connected with a first activating means (5) for rotating the turntable (1) with the container (10) about the central axis thereof. A rotatably journalled piston activating mechanism activates the piston (12) by a second activating means (21) and is provided with a second gripping means (13) for releasably gripping the piston rod (12). The first gripping means (27) enters into a locking engagement with the inner side of the cylindrical member (11) upon activation of a third activating means (8) when the container (10) is placed on the turntable (1). The second gripping means (13) enters into a locking engagement with the piston rod (12) upon activation of a fourth activating means (15).