Peristaltic pump

• US 20060177329A1
• Filed: 05/25/2004
• Published: 08/10/2006
• Est. Priority Date: 06/06/2003
• Status: Abandoned Application

• Current Assignee: Innolab GmbH
• Original Assignee: Innolab GmbH
• Inventors: Firmann, Markus
• Application Number:
  US10/557,930
• Publication Number:
  US 20060177329A1
• Time in Patent Office: Days
• US Class Current: 417/477.900
• CPC Class Codes: F04B 43/0072 of tubular flexible members
• CPC Class Codes: F04B 43/1253 by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Abstract

The invention relates to a peristaltic pump comprising a tube-tube bed unit (1) which is connected in a rigid manner to the tube (3) in the pressed region (5) and which can not be separated from the tube bed (2). The tube-tube bed unit (1) comprises features or means (6, 6′) which enable the pump to be fixed in a simple, precise and reproducible manner in relation to the rotor. In the pressed region (5), the tube (3) can be effectively prevented from being displaced or stretched corresponding to the decrease in the cross-section due to the tube-tube bed unit (1) and twisting of the tube (3) around the longitudinal axis is impossible in principle. The tube-tube bed unit (1) comprises a marking area, integrated tube clamping areas and grips (18, 18′). Preferably, the tube-tube bed unit (1) is produced by firmly and non-detachably connecting a tube bed (2), produced according to the inventive method, to a tube, which has a contact surface (4) which is adjusted to the tube bed (2), by means of adhesive or welding or by coextruding the tube (3) and the tube bed (2).

Claims

1. A peristaltic pump comprising:

at least one tube bed;

at least one tube;

at least one squeezing element, wherein the at least one squeezing element is led over the at least one tube bed;

wherein the squeezing element is adapted to squeeze squeezes the latter in a squeezing region against the at least one tube bed with at least one retaining device for fixing the at least one tube bed with respect to the at least one squeezing elements;

the at least one tube bed and the at least one tube are connected to one another rigidly and non-separably in the squeezing region to and form together a tube/tube-bed unit; and

at least one suitable means for detachably fixing of the is tube/tube-bed unit to the at least one retaining device.

2. The peristaltic pump according to claim 1, wherein the at least one tube bed of the tube/tube-bed unit has a lower stretchability than the at least one tube.

3. The peristaltic pump according to claim 1, wherein the tube/tube-bed unit has at least one region designed as a handle for operating of the at least one means.

4. The peristaltic pump according to claim 1, wherein the tube/tube-bed unit has at least one tube clamping region.

5. The peristaltic pump according to claim 4, wherein the at least one tube clamping region of the tube/tube-bed unit is designed as a slit.

6. The peristaltic pump according to claim 1, wherein the at least one means is formed by at least one region or extension of the at least one tube bed designed as a recess, eyelet, cam, protuberance or tooth.

7. The peristaltic pump according to claim 1, wherein the at least one means is designed as a clamp, holding device or cassette.

8. The peristaltic pump according to claim 1, wherein the at least one means is designed in such a way that a contact pressure of the tube/tube-bed unit on the at least one squeezing element is adjustable.

9. The peristaltic pump according to claim 1, wherein the at least one means contains at least one spring-mounted element, wherein the spring-mounted element is adapted to bring about a contact pressure of the tube/tube-bed unit on the at least one squeezing element, the contact pressure corresponding to its spring power.

10. The peristaltic pump according to claim 1, wherein a fixed, non-separable connection of the at least one tube bed and the at least one tube in the tube/tube-bed unit is produced by gluing, welding, injection-moulding or extrusion.

11. The peristaltic pump according to claim 10, wherein the at least one tube bed and the at least one tube of the tube/tube-bed unit are produced by means of two-component injection moulding.

12. The peristaltic pump according to claim 10, wherein the at least one tube bed and the at least one tube of the tube/tube-bed unit are produced by means of co-extrusion.