Abstract:
A dual chambered syringe includes: an inner barrel defining a first inner chamber, the inner barrel having an apertured stopper at its distal end, the inner barrel being open at its proximal end; a shaft adapted to fit within the inner barrel, the shaft having a distal end which is engageable with the aperture of the stopper; a device for controlling engaging and disengaging of the distal end of the shaft with the aperture of the stopper; an outer barrel concentric with the inner barrel defining a second inner chamber, the outer barrel having a distal end for receiving and dispensing fluids and a proximal end into which the distal end of the inner barrel is insertable into the second inner chamber; the apertured stopper engages the second inner chamber of the outer barrel and selectively prevents or permits the passage of fluids between the outer barrel second chamber and the inner barrel first chamber; the inner barrel having an engageable surface on its outside surface; and, the outer barrel having operatively associated therewith an engaging device for selective engagement and disengagement with the engageable surface on the inner barrel.
Abstract:
A medical device for the separation of a concentrate enriched with cells from a biological fluid, in particular a concentrate of stromal or stem cells from medullar aspirate or venous blood, comprises: - a treatment container (3) for receiving and treating the biological fluid for the purposes of its separation into a number of fractions; - a first collection container (4), for receiving a first fraction of the fluid, in particular a fraction poor in said cells; - a second collection container (5), for receiving a second concentrated fraction of the fluid enriched with said cells; - a deviator valve (7) having a first way connected or prearranged for connection to the treatment container (3), a second way connected or prearranged for connection to the first collection container (4), and a third way connected or prearranged for connection to the second collection container (5); - a first line (10a) for connection of the treatment container (3) to the first way of the deviator valve (7), a second line (4a) for connection of the first collection container (4) to the second way of the deviator valve (7), and a third line for connection of the second collection container (5) with the third way of the deviator valve (7). The treatment container (3) is a syringe container with a plunger having a plunger stem (3c) associated in a releasable way to a corresponding plunger head, and the first connection line comprises a first transparent tube (10a), in particular a flexible transparent tube, and at least one of the second and third connection lines preferably comprises a second flexible tube (4a). At least one connection line, or each connection line, further comprises: at least one respective hydraulic connector (11, 13), for separable connection of a corresponding tube (10a, 4a) to the corresponding container (3, 4, 5) and/or to the corresponding way (7b, 7c, 7d) of the deviator valve (7); and at least one automatic-closing or one-way valve (12, 14a, 14b).
Abstract:
Apparatus and methods for generating a solution rich in interleukin-1 receptor antagonist from a tissue comprising cytokine-producing cells. The apparatus can include a filter used with a separation system. The separation system can include a float.
Abstract:
Plasma expressor manual top and bottom is an equipment used for separating plasma and buffy coat removed red blood cells. It is useful for all types of blood component bag. It is a mechanical device, which exerts uniform pressure on the blood bag during the separation of components. The plasma expressor includes a pressure plate (1), a handle hook (3), a rubber sheet (4), stainless steel springs (5), a steel rod (6), a expressor body (7) and a hanger (8). The current automated expressor is costly and requires maintenance. As no electrical components are used in this device, the manual top and bottom expressor is cheaper and requires no maintenance.
Abstract:
본 발명은 원심분리에 의하여 혈액이 분리된 상태에서 혈청과 혈소판을 다시 분리하여 혈소판만을 용이하게 축출하여 주사할 수 있도록 한 혈소판 축출 키트에 관한 것으로, 용기체의 상부를 캡으로 막아 그 캡의 중앙을 상, 하로 관통하도록 관체로 이루어진 로드 및 그 로드에 결합되면서 용기체에 내장되는 피스톤을 형성하고, 상기 로드의 상부는 밀폐캡으로 막아 용기체 내부가 밀폐상태로 이루어지도록 하며, 상기 로드와 피스톤의 결합부에는 상,하로 관통하는 유로를 형성하여 피스톤의 승,하강에 의하여 용기체 내부의 혈청과 혈소판을 상,하 분리함으로써 괴사하지 않은 순수한 혈소판만을 용이하게 축출할 수 있도록 한 것이다.
Abstract:
The present invention provides novel apparatuses and methods for isolating or recovering a subset of blood cells such as leukocytes and/or circulating tumor cells from blood samples by filtration without changing the intracellular concentration of a therapeutic agent such as an anticancer drug. Contrary to the art, the apparatuses and methods of the present invention advantageously provide cell lysates from recovered cells such as leukocytes and/or circulating tumor cells without substantial dilution of a therapeutic agent such as an anticancer drug.
Abstract:
The present invention is related to the field of tissue regeneration. It concerns more particularly new processes, tubes and devices for thrombin, platelet concentrate and wound healant preparations, alone or in combination with cell extracts, cell compositions and uses thereof.