Peristaltic hose pump

A technology of roller pumps and hoses, applied in the direction of pumps, pump control, pump parameters, etc., can solve the problems of less convenient user operation, no timely injury, pump failure, etc., to avoid the risk of injury, reliable operation, high reliability sexual effect

Active Publication Date: 2010-07-21
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of such an accident, the bearing of the rotor shaft on the output side is also overloaded, which can lead to pump failure after days or months
A third and more serious possible fault situation is that the operator does not remove his fingers from the pump base in time and thus there is a risk of injury due to collisions with the hose guide wings or with the hose rollers
However, this manual adjustment possibility is rarely user-friendly and is moreover extremely prone to operating errors
[0012] On the contrary, from WO 95 / 17598 A1 and US Pat. No. 4,205,948, the adjustability of the rollers by means of a separate adjusting drive is known, but here a complex joint structure and a complicated adjusting drive arranged outside the rotor are necessary.

Method used

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Embodiment Construction

[0052] The general structure of the exemplary embodiments of the invention is based on the proven basic types already described at the outset, so that reference is made to the descriptions of the prior art with regard to the basic structure and pump function of the invention. about in figure 1 With respect to the elements that can be seen in , the invention differs from the prior art only by the shorter and more rounded hose guide wings 21 . In addition, however, the invention is identical to the hose roller pump according to the prior art with respect to the basic elements of the rotor and the stator. Therefore, the embodiments of the invention also have the same advantageous features of the hose roller pump which have been proven for a long time when the pump is running, but it is now possible to significantly improve the Simplifies hose insertion and removal.

[0053] Here, the rotor of the exemplary embodiment of the hose roller pump according to the invention is based ...

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Abstract

The present invention relates to a peristaltic hose pump comprising a stator, a rotor, and a rotor drive, wherein the rotor has rolled-up hoses, the position of which can be adjusted in the radial direction via an adjusting device having an adjusting element, and wherein a brake device is provided, and the radial position of the rolled-up hoses can be varied by the interaction of the brake deviceand the rotor drive.

Description

technical field [0001] The invention relates to a hose roller pump with a stator, a rotor and a rotor drive, wherein the rotor includes hose rollers. [0002] In such hose roller pumps, hoses are inserted between the rotor and the hose roller tracks of the stator, which are pressed against the hose rollers in each case so that the hoses passing through the rotor With the rotation and thus the swivel movement of the hose roller, the liquid is sucked through the hose. Hose roller pumps of this type are used in great numbers especially in medical technology and are used especially in dialysis for pumping medical fluids such as dialysate or blood, especially in hemodialysis or peritoneal dialysis . Background technique [0003] Among the hose roller pumps for disposable pump hoses established in the market for medical technology, the simple basic type still prevails. This long-known basic form of the hose roller pump, on which the hose roller pump according to the invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/00F04B43/12
CPCF04B43/1276F04B43/0081F04B43/1292F04B49/06F04B43/12F04B2201/127F05B2260/90F05B2210/11F05B2240/50Y10S417/00
Inventor 马丁·劳尔
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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