Abstract:
A blood filtration system can be used with an external infusion pump and can include, among other things, a withdrawal line, an infusion (return) line, a filter coupled between the withdrawal line and the infusion line, a controller, and a withdrawal pressure sensor and/or an infusion pressure sensor. The withdrawal pressure sensor can sense a withdrawal pressure signal indicative of a pressure in the withdrawal line. The infusion pressure sensor can be coupled to the infusion line to sense an infusion pressure signal indicative of a pressure in the infusion line. In various embodiments, the controller can detect an operational state of the external infusion pump by analyzing at least the withdrawal pressure signal and/or the infusion pressure signal.
Abstract:
A catheter may include a withdrawal lumen wall extending around a withdrawal lumen. The withdrawal lumen may have a withdrawal lumen profile. The catheter may include an infusion lumen wall coupled with the withdrawal lumen wall. The infusion lumen wall may extend around an infusion lumen. The infusion lumen may have an infusion lumen profile smaller than the withdrawal lumen profile. A flexible septum may extend between the withdrawal lumen and the infusion lumen. The flexible septum may isolate the withdrawal lumen from the infusion lumen. In another example, a blood filtration system may monitor blood flow velocity within vasculature. The blood filtration system may guide operation of a blood pump or a filtrate bump based on the blood flow velocity within the vasculature.
Abstract:
An example electrical stimulation system for use in combination with a non-pulsatile or low-pulsatile ventricular assist device and for restoration of autonomic balance by stimulating at least one nerve. The system includes a stimulation source including a controller configured to control delivery of electrical stimulation at a stimulation rate modeled to simulate a baroreceptor discharge related to an intrinsic heart rate, a lead operably coupled to the stimulation source, and at least one electrode operably coupled to the lead, wherein the at least one electrode is positionable in contact with or adjacent to the at least one nerve.
Abstract:
This invention relates to methods and compositions for materials having a non-leaching coating that has antimicrobial properties. The coating is applied to substrates such as gauze-type wound dressings, powders and other substrates. Covalent, non-leaching, non-hydrolyzable bonds are formed between the substrate and the polymer molecules that form the coating. A high concentration of anti-microbial groups on multi-length polymer chains and relatively long average chain lengths, contribute to an absorbent or superabsorbent surface with a high level antimicrobial efficacy.
Abstract:
A superabsorbent polymer dressing having antimicrobial properties for use in fabricating wound dressings, sanitary napkins, tampons and the like, includes a synthetic polymer matrix fabricated to have an enhanced surface area. Antimicrobial compounds are coupled to the surface of the polymer matrix by non-siloxane bonds.
Abstract:
A bioreactor for microbial conversion of at least one conversion substrate, which comprises a treatment zone to accommodate when in use a solution of said at least one conversion substrate, a culture holding zone to accommodate when in use a microbial culture capable of metabolising said at least one conversion substrate, a source of primary growth substrate for the microbial culture, a first permeable membrane forming an interface between the treatment zone and the culture holding zone, and a second permeable membrane forming an interface between the source of primary growth substrate and the culture holding zone, the first permeable membrane being of a material which will allow passage of the at least one conversion substrate from the treatment zone to the culture holding zone whilst being impermeable to the microbial culture, the second permeable membrane being of a material permeable to the primary growth substrate but substantially impermeable to water; and a process of operating said bioreactor.
Abstract:
A compound of general formula (I), wherein n is 1 or 2; R1 and R2 are each independently hydrogen, hydroxy, substituted or unsubstituted C1-4 alkyl, substituted or unsubstituted C1-4 alkoxy or halogeno; R5 is hydrogen, substituted or unsubstituted C1-4 alkyl, amino or NR6R7; R3, R4, R6 and R7 are each independently hydrogen or (CH2)m-[NH(CH2)x]y-NHR11 wherein m is from 0-5, y is from 0-5 and each x is independently from 1-5 and R11 is hydrogen or C(NH)NH2; provided that when R3 and R4 are both hydrogen, R5 is amino or NR6R7; pharmaceutically acceptable salts and optically active isomers thereof.
Abstract:
The subject invention provides R(+)-N-propargyl-1-aminoindan and pharmaceutically acceptable salts thereof, as well as pharmaceutical compositions containing same. The subject invention also provides methods of treating a subject afflicted with Parkinson's disease, a memory disorder, dementia, depression, hyperactive syndrome, an affective illness, a neurodegenerative disease, a neurotoxic injury, brain ischemia, a head trauma injury, a spinal trauma injury, schizophrenia, an attention deficit disorder, multiple sclerosis, or withdrawal symptoms, using R(+)-N-propargyl-1-aminoindan or the pharmaceutically acceptable salt of the subject invention. The subject invention further provides a method of preventing nerve damage in a subject. Finally, the subject invention provides methods of preparing R(+)-N-propargyl-1-aminoindan, a salt thereof, and racemic N-propargyl-1-aminoindan.
Abstract:
A compound having structure (I), wherein A is X or Y, X is (a), Y is (b); R1, R2, R3, R4 and R5 are each independently hydrogen, a C1-C6 alkyl group, an aralkyl group, or an aryl group; and n is 0, 1, 2, or 3. Also provided are a compound containing a 2-valproenoic moiety, pharmaceutical compositions comprising these compounds, and methods of using them for the effective treatment of epilepsy and other neurological disorders.
Abstract:
This invention relates to methods and compositions for materials having a non-leaching coating that has antimicrobial properties. The coating is applied to substrates such as gauze-type wound dressings, powders and other substrates. Covalent, non-leaching, non-hydrolyzable bonds are formed between the substrate and the polymer molecules that form the coating. A high concentration of anti-microbial groups on multi-length polymer chains and relatively long average chain lengths, contribute to an absorbent or superabsorbent surface with a high level antimicrobial efficacy.