Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.

Filtering systems, methods, and devices, particularly adapted for concentrating and harvesting neoplastic cells in pancreatic juices.

A method for removing fat from salvaged blood includes transferring salvaged blood from a reservoir to a blood component separation device, and separating the blood into a plurality of blood components. The method may then transfer a volume of unwashed blood components from the blood component separation device back toward the reservoir, and recentrifuge the blood components remaining within the blood component separation device. After re-centrifuging, the method transfers additional salvaged blood from the reservoir to the blood component separation device to refill the blood component separation device. The method may then wash the components within the bowl by introducing wash solution into the blood component separation device. The wash solution displaces a volume of fat from the blood component separation device and into a waste container. The method may then empty the washed blood components within the blood component separation device to a product container.

A surgical fluid management system delivers fluid for distending a uterine cavity to allow cutting and extraction of uterine fibroid tissue, polyps and other abnormal uterine tissue. The system comprises a fluid source, fluid deliver lines, one or more pumps, and a filter for re-circulating the distension fluid between the source and the uterine cavity. A controller can monitor fluid retention by the patient.

A closed system for harvesting fat through liposuction, concentrating the aspirate so obtained, and then re-injecting the concentrated fat into a patient comprises as its main components a low pressure cannula having between about 7 to 12 side holes of about 1-2 mm by 2.0 to 4.0 mm, a spring loaded syringe holder with a constant force or coiled ribbon spring to apply a substantially constant pressure over the full excursion of the plunger, and a preferably flexible collection bag which is also preferably graduated, cylindrical over most of its body and funnel shaped at its bottom, all of which are connected through flexible tubings to a multi-port valve. The multi-port valve has two flutter/duck bill valves which restrict the fluid flow to a one way direction which effectively allows the syringe to be used to pump fat out of a patient and into a collection bag in a continuous manner. After the bags are centrifuged to concentrate the fat, the excess fluids are separated and the valve is re-connected to permit the syringe pump to reverse fluid flow to graft the concentrated fat back into the patient.

A tissue separating device (100) is provided. The tissue separating device (100) includes a canister device (20) including a canister body (21) defining a volume. A tissue retrieval port (36) can be arranged on the canister device (20) and is capable of being arranged in fluid communication with a harvesting device (300) for directing a fatty liposuction aspirate into the volume of the canister device (20). An adjustable height filtration mesh assembly (50) can be arranged within the canister body (21) and can include a filtering mesh (62). A tissue harvesting port (24) can be arranged in the sidewall of the canister body (21) and can be capable of being arranged in communication with a collection device (400) to allow the tissue harvesting port (24) to atraumatically receive a filtered pure fat collected on the filtering mesh (62). The filtration mesh assembly (50) can be movably arranged within the canister body (21) such that the filtering mesh (62) is adjustable with respect to the tissue harvesting port (24).

A novel retinal and optic nerve autologous bone-marrow derived stem cell surgery method is provided. The method generally includes the separation of stem cells from the bone-marrow of a patient, and the reintroduction of the cells to treat various optic nerve and retinal conditions of the eye. Novel needle embodiments which can be used during the stem cell surgery are also described.

Embodiments are described for separating/collecting components from a multi-component fluid such as whole blood. Some embodiments provide for controlling the amount of a component, such as platelets, introduced into a separation chamber to ensure that the density of fluid in the separation chamber does not exceed a particular value. This may provide for collecting purer components. Other embodiments may provide for determining a chamber flow rate based on a concentration of a component in the multi-component fluid, which may then be used to determine a centrifuge speed, to collect purer concentrated components.

Systems and methods for perfusing a treatment solution into the blood stream of particular organs while isolating those organs from the systemic vasculature as a whole. By deploying both collection and supply catheters, some having balloons on their distal ends, to particular locations within the body, various organs can be isolated so that the treatment solution can be delivered directly thereto. By isolating the organs, any side effects that may occur from a systemic introduction of the treatment solution are avoided. The method may be used to isolate not just organs, but specific tumors within certain organs for oncology treatment.

The present application relates to an extracorporeal blood treatment system for treating a subject. In an example, a system computing unit of the extracorporeal blood treatment system is adapted for receiving a desired blood concentration GLN.sub.b of glutamine, a desired blood concentration GLUCOSE.sub.b of glucose, and a desired blood concentration of a ketone body KETONE.sub.b. The system computing unit is adapted for controlling a blood pump and a dialysate fluid pump so that the actual concentration value GLN.sub.a of glutamine is driven towards GLN.sub.b, and the actual concentration value GLUCOSE.sub.a of glucose is driven towards D.sub.b, and the actual concentration value of ketone bodies is driven towards KETONE.sub.a.