Suctioning and supply device with drive unit and connecting part

Inventors

Ehlert, Hilmar • Bannwart, Lukas

Assignees

Medaxis AG

Abstract

Provided is a device for suctioning bodily fluids and for supplying a fluid substance to a human or animal body, in which the device includes a drive unit (1, 1′, 1″; 2) having a drive (20), a pump head (30, 30′, 30″) which is drivable by the drive (20) and a connecting part (5, 7′, 4″) which is releasably connectable to the drive unit (1, 1′, 1″; 2) and has a tube guide (555, 710′, 43″). The tube guide (555, 710′, 43″) is realized in such a manner for receiving a tube (I) that the tube, in combination with the pump head (30, 30′, 30″), forms a peristaltic pump (3) by way of which the fluid substance is conveyable through the tube (I) to the human or animal body. The pump head (30, 30′, 30″) is incorporated in the connecting part (5, 7′, 4″), and the drive unit (1, 1′, 1″; 2) includes a coupling element (24, 24′) which is connected to the drive (20) in order to couple the pump head (30, 30′. 30″) to the drive (20).

Core Innovation

The document describes a device for both suctioning bodily fluids and supplying a fluid substance to a human or animal body at the same time. The device includes a drive unit having a drive, a pump head drivable by the drive, and a connecting part that is releasably connectable to the drive unit. The connecting part has a tube guide realized to receive a tube such that, when the connecting part is connected as intended to the drive unit, the tube together with the pump head forms a peristaltic pump for conveying the fluid substance through the tube to the human or animal body.

In the described arrangement, the pump head is incorporated in the connecting part, and the drive unit comprises a coupling element connected to the drive to couple the pump head to the drive when the connecting part is connected as intended. The connecting part further comprises a gearing unit via which the pump head is coupled to the drive when the connecting part is connected as intended. This structurally integrates the peristaltic pump function into the releasably connected connecting part while enabling the drive unit to couple to the incorporated pump head.

The document further specifies embodiments in which the drive unit includes a suctioning function using a vacuum pump, including a diaphragm pump, and mechanical features such as planetary gearing. It also describes the connecting part as disposable and injection-molded in certain embodiments, and introduces control aspects including an identification feature/identification unit for identifying the type of connecting part to select operating modes. In additional variants, the connecting part is defined as a peristaltic cassette and includes secretion line and auxiliary line interfaces, and the device can use a combined fluid-collecting and instillation container with independent fluid volumes separated by a flexible partition wall/pouch.

Claims Coverage

Independent claim coverage is provided by two independent claims (clm-00001 and clm-00013). Across these independent claims, the inventive features primarily combine simultaneous suctioning and fluid substance supply with a releasably connectable connecting part that incorporates a pump head to form a peristaltic pump via a tube guide, and coupling of the pump head to a drive using a coupling element and a gearing unit.

Taken together, the independent claims define a simultaneous suctioning and fluid-supplying device that uses a releasably connectable connecting part with a tube guide to form a peristaltic pump with an incorporated pump head. The drive unit couples to the incorporated pump head via a coupling element and via a gearing unit, and one independent claim specifies the connecting part as a fluid-collecting container or intermediate part while also specifying planetary gearing.

Stated Advantages

Documented Applications