An extracorporeal circulation apparatus including a blood circuit including an arterial blood circuit and a venous blood circuit whose proximal ends are connected to a blood purifier, the blood circuit allowing a patient's blood to extracorporeally circulate from a distal end of the arterial blood circuit to a distal end of the venous blood circuit; a discharge unit through which a priming solution supplied into the blood circuit is discharged to an outside; a negative-pressure-generating unit that generates a negative pressure in a region of the blood circuit, the region being filled with the priming solution; and a control unit that controls the negative-pressure-generating unit. The control unit executes a priming step in which the priming solution supplied into the blood circuit is discharged through the discharge unit while a flow route in the blood circuit is filled with the priming solution; a negative-pressure-generating step in which, after the priming step, a negative pressure is generated in the region by the negative-pressure-generating unit; and a discharge step in which bubbles in the region subjected to the negative pressure generated in the negative-pressure-generating step are caused to flow and are discharged through the discharge unit.

A peristaltic pump precise dosing control system includes a driver, a pump head, pipeline switching means, a metering pipeline, and a discharge pipeline. An elastic tubing is provided in the pump head, and the outlet end of the elastic tubing is connected to the pipeline switching means. The driver drives the pump head to rotate to pump the liquid in the elastic tubing to the outlet end of the elastic tubing. The driver is electrically connected to the pipeline switching means so as to be capable of controlling the pipeline switching means to switch to the output pipeline with which the outlet end of the elastic tubing is connected. The pipeline switching means is driven to switch the outlet end of the elastic tubing from a state of connection with the discharge pipeline to a state of connection with the metering pipeline.

An automatic analyzer includes a tube pump, a mounting unit that mounts the liquid delivery target container, a drive mechanism, a liquid surface detecting unit, and a control unit. The tube pump delivers the liquid to the liquid delivery target container during design liquid delivery time necessary to deliver the liquid in a design liquid delivery amount before the tube pump is degraded. The drive mechanism moves the mounting unit mounting the liquid delivery target container from a first position to a second position at which the liquid surface is to be detected by the liquid surface detecting unit. The control unit computes an actual liquid delivery amount of the liquid for the design liquid delivery time based on the first and the second positions, and the control unit determines a degradation state of the tube pump based on the design liquid delivery amount and the actual liquid delivery amount.

The present disclosure provides apparatuses and methods related to a high pressure processing device that is configured to simplify batch processing. In an embodiment, a high pressure processing device includes a processing module configured to reduce a particle size of a material or achieve a desired liquid processing result for the material, a pump configured to pump the material to an inlet of the processing module, a recirculation pathway configured to recirculate the material from an outlet of the processing module back to the pump, an input device configured to receive at least one user input variable, and a controller configured to (i) determine a number of pump strokes for the pump based on the user input variable, and (ii) control the pump according to the determined number of pump strokes so that the material makes a plurality of passes through the processing module.

The invention regards a micro dosage peristaltic pump (2) for micro dosage of a fluid, comprising: a housing (4) with an inner annular surface (5), wherein the annular surface comprises an opening (12), a flexible tube (6), wherein a section of the tube is placed upon the annular surface (5), a compression element (7) configured for peristaltic engagement with the section of the tube placed upon the annular surface (5), at least one counter acting element (11), an arm (10) comprising the compression element (7) and the counter acting element (11), wherein the arm (10) is rotatably mounted with a rotation axis perpendicular to the arm, driving means for rotating the arm (10), and thereby moving the compression element (7) and the counter acting element (11) in a circular motion.

The present disclosure provides apparatuses and methods related to a high pressure processing device that is configured to simplify batch processing. In an embodiment, a high pressure processing device includes a processing module configured to reduce a particle size of a material or achieve a desired liquid processing result for the material, a pump configured to pump the material to an inlet of the processing module, a recirculation pathway configured to recirculate the material from an outlet of the processing module back to the pump, an input device configured to receive at least one user input variable, and a controller configured to (i) determine a number of pump strokes for the pump based on the user input variable, and (ii) control the pump according to the determined number of pump strokes so that the material makes a plurality of passes through the processing module.

The invention regards a micro dosage peristaltic pump (3) for micro dosage of a fluid, comprising: a housing (4) with an inner surface (5) comprising at least one circular section (6), a flexible tube (8) placed upon the at least one circular section of the surface, a flexible layer (9) placed between the surface and the flexible tube, at least one compression element (10), driving means for moving the at least one compression element in an eccentric circular motion having a circular circumference (14), whereby the at least one compression element is peristaltically engaged at the circumference with the tube placed upon the circular section of the surface.

A tube pump having small driving energy is provided. The tube pump includes: a flexible tube for conveying a fluid; a holder part holding the tube so that the tube is at least partially bent; a driving part; and at least one pressing part, rotationally driven around a first central axis by the driving part, and pressing the tube along the bent portion of the tube held by the holder part while rotating around the first central axis, thereby conveying the fluid in the tube. The pressing part has an inclined plane inclined from the side of the tube toward the side of the pressing part in a radially outward direction with reference to the first central axis.

The present invention relates to the titration and delivery of anesthetic and sedative medications to a subject. Further, the present invention relates to a device and methods for titrating and delivering such medications in a semi-automated or fully automated manner and which can be monitoring and controlled remotely. Even still further, the present invention relates to such a device that can perform the titration and delivery of medication in a manner that minimalizes occlusion and prevents back flow of the medication. More particularly, the present invention relates to a device for titration and delivery of medication using a non-concentric pumping mechanism that gradual or progressively increases and decreases occlusion in the medication delivery line within the pump to minimize and/or prevent sudden formation and release of occlusion in order to provide more steady and continuous flow of the medication through the device to the subject.

A pump body assembly, a pump, a sprinkler system, and an unmanned aerial vehicle are provided, the pump body assembly including a drainage outlet on a pump housing and a valve body portion of a valve core member, where the valve body portion is elastic, and the valve body portion changes from a natural state to an elastic deformation state under an action of liquid in the pump housing, such that when the valve body portion is in the natural state, the valve body portion seals the drainage outlet of the pump housing, and when the valve body portion is in the elastic deformation state, the valve body portion does not seal the drainage outlet of the pump housing.