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US 7,597,546 B2Granted
Hose pump
AssigneeLifebridge Medizintechnik AG
InventorGerhard Brieske
Life of this patent
Estimating the term…
Abstract
A peristaltic hose pump has a rotor which is rotatable by a drive shaft as well as a support element which extends along a part of the rotor periphery. A flexible hose is inserted between the support element and the rotor. The support element is movable in the direction toward the rotor by rotation of the drive shaft.
Claims9
A peristaltic hose pump comprising:
- a rotor rotatable by a drive shaft;
- and
- a support element extending along a part of the rotor periphery, with a flexible hose being insertable between the support element and the rotor,
- wherein the support element is movable by a predetermined distance in the direction toward the rotor by rotation of the drive shaft in a first direction of rotation, wherein a drive plate rotatable about the drive shaft is provided which is provided with a spiral guide that guides the movement of the support element, wherein a ring groove is provided in the drive plate into which a fixed position cam guide engages, wherein the drive plate has at least one guide chamfer, whose lowest point is an opening in the base of the ring groove, in the region of the opening on the side opposite the ring groove.
1 more element
A peristaltic hose pump comprising:
- a rotor rotatable by a drive shaft;
- a support element extending along a part of the rotor periphery, with a flexible hose being insertable between the support element and the rotor;
- a drive plate rotatable about the drive shaft, the drive plate having a spiral guide and at least one guide chamfer;
- a ring groove provided in the drive plate into which a fixed position cam guide engages;
- and
- a drive pin rotationally fixedly connected to the drive shaft, the drive pin being displaceably supported against the force of a spring in the axial direction of the drive shaft, wherein the drive pin can be brought into engagement with the cam guide through an opening in the base of the ring groove;
- wherein the lowest point of the at least one guide chamfer is the opening, in the region of the opening on the side opposite the ring groove, and
- wherein the support element is movable by rotation of the drive shaft in a first direction of rotation by a predetermined distance in the direction toward the rotor
5 more elements
Dependencies are inferred from the claim text.