Magnetic drive centrifugal pump

Inventors

Ghelli, Nicola • Fontanili, Paolo • Costa Maianti, Edgardo

Assignees

Eurosets SRL

Abstract

A locking device having at least one load-bearing element, a first locking device engageable in a removable manner with the hollow body to lock it in travel with respect to the load-bearing element, the hollow body being movable in rotation around the axis with respect to the load-bearing element, and second locking device engageable in a removable manner with the support element, the locking device being movable between at least one release configuration and at least one locking configuration, wherein the second locking device engage with the support element to secure the load-bearing element in travel with respect thereto, the hollow body being movable in rotation around the axis with respect to the support element with the locking device in the locking configuration.

Core Innovation

The invention relates to a magnetic drive centrifugal pump that includes at least one internally hollow body provided with at least one inlet connector and at least one outlet connector for blood. The internally hollow body houses at least one rotor element with a portion made of magnetic material, and the rotor element is magnetically commanded in rotation around an axis without contact by a stator element associable with the internally hollow body.

The pump further comprises at least one support element capable of supporting the internally hollow body, where the support element is associable with the stator element. Removable locking means are provided to lock the internally hollow body to the support element and to lock movement of the internally hollow body with respect to the support element along at least one direction, and the removable locking means include at least one load-bearing element.

The removable locking means also comprise first locking means engageable in a removable manner with the internally hollow body, locking the internally hollow body to the load-bearing element along the at least one direction. When the first locking means are engaged, the internally hollow body is movable in rotation around the axis with respect to the load-bearing element, and second locking means are engageable in a removable manner with the support element and movable between at least one release configuration and at least one locking configuration.

The invention addresses the problem of conventional threaded locking parts by eliminating maintenance of conventional threaded locking parts and reducing complexity in adjusting outlet connector angle. Abutment means are provided to provide incremental angular positioning and stability of the internally hollow body so that the outlet connector can be oriented for blood line connection, while maintaining defined travel-with relative motion during release and locking configurations.

Claims Coverage

The partial content provides one independent claim. It includes multiple inventive features centered on the magnetic drive architecture and a removable two-stage locking arrangement that supports release and locking configurations while allowing rotational mobility around the axis.

Overall claim coverage centers on a magnetic drive centrifugal pump having a contactless rotor magnetically commanded by a stator within an internally hollow blood module, combined with removable locking means that lock the internally hollow body to a support element along a direction while moving between release and locking configurations. The locking arrangement includes load-bearing, first locking, and second locking elements, and supports controlled rotational mobility of the internally hollow body around the axis during locking configurations.

Stated Advantages

Documented Applications