Abstract:
A platform for cultivation, maintenance, and/or analysis of one or more bio-objects includes one or more integrated bio-object microfluidics modules. Each integrated bio-object microfluidics module is configured to cultivate, maintain, analyze and/or mimic functionalities of a respective bio-object, and includes one or more on-chip pumps; a plurality of fluidic switches; and a microfluidic chip in fluid communication with the one or more on-chip pumps and the plurality of fluidic switches, having at least one chamber for accommodating the bio-object and a plurality of fluidic paths connecting the at least one chamber, the one or more on-chip pumps and the plurality of fluidic switches, and a power and control unit adapted for selectively and individually controlling the one or more on-chip pumps and the plurality of fluidic switches for performing bio-object microfluidics functions.
Abstract:
A peristaltic pump having a plurality of rollers mounted on a rotor rotatable about an axis of rotation. The pump includes a cassette (5) comprising a flexible stator member (113) with a fixed portion secured to the cassette body, a second portion opposite the fixed portion, a reaction surface and a second surface opposite the reaction surface, the reaction surface being defined between the fixed portion and the second portion. The flexible tube (45) to be squeezed by the rollers is secured to the cassette body, wherein at least a portion of the tube is disposed against the reaction surface.
Abstract:
Systems, methods and apparatuses for delivering therapeutic fluid to the body of a patient are disclosed. The apparatus includes a dispensing unit (10) having a driving mechanism (120), a pumping mechanism (110), a reservoir (220) containing therapeutic fluid, and an outlet port (210). The driving mechanism causes the pumping mechanism to positively displace therapeutic fluid within the reservoir for delivery of therapeutic fluid to the body of the patient via the outlet port.
Abstract:
An infusion system, method and device for delivering therapeutic fluid to the body of a patient are disclosed. The device includes a dispensing unit having a peristaltic pump for dispensing therapeutic fluid to the body of the patient. The peristaltic pump includes a driving mechanism. The device further includes a monitoring mechanism (112, 114) for monitoring operation of the driving mechanism and dispensing of therapeutic fluid to the body of the patient.
Abstract:
A peristaltic pump mechanism comprises a base plate (11) having a generally planar surface for supporting a pump tube (12) to extend at least partially around a circular path defined on said surface, an operating section (10) connectable to the base member (11). At least one rotatable pumping element (21) is mounted on the operating section (10) locally to compress the pump tube (12) and roll around the circular path when the operating section (10) is connected to the base member. A power drive causes the pumping element (21) to roll around the circular path, the pumping element (21) being of conical shape and mounted on the operating section (10) so that the axis of the element is substantially co-incident with the centre of the circular path. In this way essentially no slippage takes place between the conical surface of the pumping element and the planar surface of the base plate.
Abstract:
An enteral feeding pump motor unit (10) and method of use are disclosed. The motor unit (10) uses optical sensors (54) to monitor the rotational period and position of a platen (22) of the motor unit (10). If the rotational period is different from a predetermined desired period, a controller in communication with the optical sensors (54) and the platen (22) changes the rate at which the platen rotates so as to effectuate movement of a desired amount of fluid through a delivery set passing through the motor unit (10). In accordance with one aspect of the invention, the optical sensors (54) are disposed in an asymmetrical pattern to enable self-testing and to avoid ambiguous readings.
Abstract:
This specification describes technologies relating to a pump for dispensing precise quantities of fluids. In some implementations, a pump includes a pump head including one or more recesses configured to receive one or more corresponding roller elements; and a pump body including an input port, and output port, a first fluid channel, and a second fluid channel, wherein the first fluid channel is formed in part from rigid walls of the pump body and in part from a semi-rigid membrane positioned on at least a portion of the pump body; wherein the pump head is rotatably coupled to the pump body such that the one or more roller elements interface with the semi-rigid membrane such that during rotation the roller elements compress the semi-rigid membrane to push fluid trapped within the first fluid channel in the direction of rotation.
Abstract:
Structure de conduits fluidiques pour cassette de pompe péristaltique, comprenant: un ensemble formant conduits (22) réalisé dans une plaque rigide (16); deux moyens de connexion (28, 30) raccordés audit ensemble formant conduits; une tubulure déformable (36) s'étendant hors de ladite plaque dont les deux extrémités (36b, 36c) sont raccordées respectivement auxdits moyens de connexion, ladite tubulure présentant une portion sensiblement en forme de demi-cercle pour coopérer avec le rotor (82) de la pompe péristaltique; et des moyens de raccordement (86, 90, 92) dudit ensemble formant conduits pour raccorder lesdits conduits à des composants fluidiques destinés à être montés sur la cassette. L'ensemble formant conduits est constitué par un relief en creux (40) débouchant dans une face de la plaque (16) et un film mince (26) fixé de façon étanche sur ladite face de la plaque en regard du relief en creux.