Abstract: A peristaltic pump includes a rotor and a track assembly. The track assembly is spaced from the rotor to receive n tubes therebetween, where n=2m with m a positive integer ?2. The tubes are manifolded to one another at a discharge port. One of the rotor and the track includes an occlusion surface for each of the n tubes. The occlusion surfaces are located at n different angular positions. The angular offset between the occlusion surfaces offsets pulsation associated with each tube so as to reduce overall pulsation at the discharge port.

Abstract: A peristaltic pumphead comprising a pumphead housing accommodating a pumping tube, an end of the tube being provided with an end fitting having a through passage and an abutment shoulder and a threaded shank extending from the abutment shoulder into the tube the tube end abutting the abutment shoulder and being accommodated in an opening, in the pumphead housing, the abutment shoulder abutting the housing at the opening, and the end fitting being engaged by a retaining element to retain the abutment shoulder against the housing.

Abstract: A peristaltic pump is provided comprising a drive unit, a pumphead comprising a pressing element. The pumphead is connectable to the drive unit such that, when connected, the pressing element is driveable by the drive unit to exert a peristaltic action on a tube arranged within the pumphead. The pumphead further comprises an optical sensor, wherein the optical sensor comprises an emitter and a receiver which are mounted on the drive unit and a reflector element mounted on the pumphead. The reflector element is arranged on the pumphead such that when the pumphead is connected to the drive unit, radiation emitted by the emitter is reflected by the reflector element towards the receiver.

Abstract: A peristaltic pump comprises a pump unit including a pump which receives a replaceable tube. The tube has a transponder, for example an RFID tag, which carries data relating to the tube, which can be read by a reader of the pump unit. On the basis of a comparison between the tube data on the RFID tag and control data held in a memory of the reader, the reader permits operation of the pump unit if the tube data is compatible with the control data, but prevents such operation if the tube data is incompatible with the control data, for example indicting that an incorrect tube has been fitted, or the tube is approaching the end of its predicted operational life.

Abstract: A peristaltic pump is provided comprising a drive unit, a pumphead comprising a pressing element. The pumphead is connectable to the drive unit such that, when connected, the pressing element is driveable by the drive unit to exert a peristaltic action on a tube arranged within the pumphead. The pumhead further comprises an optical sensor, wherein the optical sensor comprises an emitter and a receiver which are mounted on the drive unit and a reflector element mounted on the pumphead. The reflector element is arranged on the pumphead such that when the pumphead is connected to the drive unit, radiation emitted by the emitter is reflected by the reflector element towards the receiver.

Abstract: A peristaltic pumphead comprising a pumphead housing accommodating a pumping tube, an end of the tube being provided with an end fitting having a through passage and an abutment shoulder and a threaded shank extending from the abutment shoulder into the tube the tube end abutting the abutment shoulder and being accommodated in an opening, in the pumphead housing, the abutment shoulder abutting the housing at the opening, and the end fitting being engaged by a retaining element to retain the abutment shoulder against the housing.

Abstract: A peristaltic pump comprises a pump unit including a pump which receives a replaceable tube. In operation, the pump unit applies a peristaltic action to the tube to induce fluid flow between inlet and outlet ends of the tube. The tube has a transponder, for example an RFID tag, which carries data relating to the tube. The pump unit has a reader which is capable of reading the data on the RFID tag. On the basis of a comparison between the tube data on the RFID tag and control data held in a memory of the reader, the reader outputs a control signal to operating means of the pump unit which permits operation of the pump unit if the tube data is compatible with the control data, but prevents such operation if the tube data is incompatible with the control data, for example indicting that an incorrect tube has been fitted, or the tube is approaching the end of its predicted operational life.

Abstract: A peristaltic pump comprises a housing (2) in which a peristaltic action is applied to a tube (6) by a rotor (4). The tube (6) has locating means in the form of flanges (16) at each end, which ensure proper positioning of the tube (6) within the housing (2). The housing (2) makes a fluid-tight seal with the flanges (16) so that the interior of the housing (2) is isolated from the ambient surroundings. The flanges (16) are non-circular and fit in complementary recesses (30), (32) in the housing (2) so that, when installed, the tube (6) is not twisted between its ends.