146results about How to "Reduce hemolysis" patented technology

A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner cannula includes a fluid inlet extending through the fluid inlet of the outer cannula and the atrial septum for placement within at least one of the left atrium and left ventricle of the heart. The cannulation system also employs a pumping assembly coupled to the inner and outer cannulas to withdraw blood from the right atrium for delivery to the pulmonary artery to provide right heart support, or to withdraw blood from at least one of the left atrium and left ventricle for delivery into the aorta to provide left heart support, or both.

Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,”“pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfactants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).

A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner cannula includes a fluid inlet extending through the fluid inlet of the outer cannula and the atrial septum for placement within at least one of the left atrium and left ventricle of the heart. The cannulation system also employs a pumping assembly coupled to the inner and outer cannulas to withdraw blood from the right atrium for delivery to the pulmonary artery to provide right heart support, or to withdraw blood from at least one of the left atrium and left ventricle for delivery into the aorta to provide left heart support, or both.

A sulfoalkyl ether-alkyl ether cyclodextrin (SAE-AE-CD) derivative is provided. The SAE-AE-CD possesses advantages over known SAE-CD and AE-CD derivatives as well as over the parent cyclodextrin by being more water soluble and less membrane disturbing. The SAE-AE-CD includes at least one sulfoalkyl ether group and at least one alkyl ether group even though the degree of substitution for the functional groups can be different. The SAE functional group can be present in molar excess over the AE functional group and vice versa. The total degree of substitution of the cyclodextrin, with respect to both functional groups, can be varied such that a minority or a majority of the hydroxyl moieties of the CD are derivatized. The SAE-AE-CD derivative can be used to solubilize compounds with insufficient water solubility. In some cases, they also stabilize compounds in solution against degradation or to solubilize degradation products formed during degradation. In addition, SAE-AE-CD can also be used for other purposes such as osmotic agents, agents used to mask the taste of problematic drugs. Surprisingly, while AE-CDs are known to be toxic by being membrane disturbing, SAE-AE-CDs are less membrane disturbing and therefore have greater safety.

The invention relates to an apparatus system and methods for treatment of virus-infected or pathogen-loaded human blood components separated from normal components comprising a separation apparatus and treatment apparatus system that inactivate pathogens in an extracorporeal blood system.

The invention relates to an apparatus system and methods for treatment of virus-infected or pathogen-loaded human blood components separated from normal components comprising a separation apparatus and treatment apparatus system that inactivate pathogens in an extracorporeal body fluid system.