A peristaltic pump (1) of the type comprising a stator which supports a portion of tube or sub-pump tube intended for the passage of a fluid to be pumped and a pressor element adapted to exert a pressure on said sub-base to determine a cyclical narrowing of the latter for the movement of the fluid inside it; the pump (1) comprises: a support base (2) provided with first locking means (22) for a body defining the stator; a stator (3), constituted by a hollow body provided with an internal groove (37) which extends for at least 360 and which accommodates said sub-pump tube (7), keeping it exposed towards the inside of the same stator, and provided with seconds locking means (30) complementarily shaped with respect to said first locking means (22) to allow locking of said stator (3) on said base (2); a single pressor element (4) provided with motorization means for rotation about its own axis, so as to make it move along a circular trajectory when it is in contact with said sub-pump tube (7); and in that the value of the compression of the tube (7) is different along the trajectory followed by said pressor (4) so as to determine the gradual compression, the gradual distension and the total occlusion and allow the peristaltic action on the tube (7) same.

A hose manifold device (05) for a peristaltic pump device (42) comprises the following components: A plurality of flexible hoses (12), two holding devices (10A, 10B), wherein the two holding devices (10A, 10B) are designed to incorporate the plurality of hoses (12) parallel to each other and in a form fitting manner and wherein one of the two holding devices (10A, 10B) comprises one additional protrusion member (20), the hose manifold device being combinable with two fixing elements (22A, 22B) designed to encompass and hold the two holding devices (10A, 10B) in a predetermined position, wherein the two fixing elements (22A, 22B) are designed to be disposed at a peristaltic pump device (42), so that the plurality of hoses (12) are held in a working position.

A dual-head, pulseless peristaltic-type pump comprises a pump housing, cover, two compressible tube chambers and two sets of rotatable occluding members. An off-center drive axis driven by motor or other rotational mechanism rotate inner large diameter disk. Balls or rollers between inner disk rotate in one direction from center drive axis where the outer ring is stationary and occludes the tube by linear motion without friction between tube and outer ring. The linear roller occluding motion transfers liquid or slurry from inlet to outlet of tube. In one embodiment, two separate sets of occluding members are installed 180 degree opposite to each other such that pulsations are compensated for and canceled out.

Disclosed herein is a peristaltic pump configured to receive a fluid line and comprising a stator having a pump race, a rotor surrounded by the pump race and configured to rotate about a rotor axis. The rotor comprises a contrasting element configured to abut against the fluid line. The contrasting element is movable between a released position where the contrasting element is away from the pump race, and an operative position where the at least one contrasting element is approached to the pump race and configured to abut against the fluid line. In the released position, the contrasting element is at a distance from the pump race higher than in the operative position. The peristaltic pump further comprises a releasing member borne by the stator and movable between an active position and a rest position, where the releasing member is spatially shifted with respect to the rotor axis.

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

A peristaltic pumphead is provided that has a pumping chamber within which is disposed a pressing element for exerting a peristaltic action on a tube extending within the pumping chamber, and an auxiliary chamber which in normal use is a dry chamber. The pumping chamber and the auxiliary chamber are arranged in fluid communication such that liquid which escapes from the tube into the pumping chamber flows from the pumping chamber into the auxiliary chamber.

The present invention relates to a fluid handling device which can prevent an inclination of a rotary member. The fluid handling device includes: a substrate; a circular first groove disposed on the substrate; a second groove connected to the first groove; a third groove connected to the first groove; a film joined to the substrate so as to cover the first groove, the second groove and the third groove; and a joining area where the film and the bottom of the first groove is joined, the joining area being disposed between a connecting portion of the second groove and a connecting portion of the third groove in the first groove. The surface of the film in the joining area is located closer to the bottom of the first groove than the surface of the film in an area joined to the substrate of the film.

A peristaltic pump device is provided with a tube allowing the passage of a fluid, a tube holder holding the tube, and a base to which the tube holder is fitted. A rotor is attached rotatably onto the base, and rollers are pivotally supported on the rotor and configured to rotate while pressing and crushing the tube. A substantially U-shaped tube holding groove is formed on a bonded surface of the tube holder on the base side. A depth of the tube holding groove is formed to be shorter than an outer diameter of the tube. When the tube is inserted into the tube holding groove, the tube is held inside the tube holding groove by a frictional resistance caused by a restoring elastic force of the tube.

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.

A tube pump includes a tube, a housing member having a cylindrical chamber including an inner peripheral surface, a rotator having a first shaft and a first portion, the first portion having a guide, and a roller having a first shank received by the guide. The tube pump includes a contact member having a contact portion in the cylindrical chamber extending outwardly towards the inner peripheral surface at least the first distance and less than the second distance, the contact portion being configured to selectively contact the roller.