Arrangement for the coupling of an intravenous tube with infusion pump

• US 7,611,498 B2
• Filed: 05/18/2006
• Issued: 11/03/2009
• Est. Priority Date: 05/18/2006
• Status: Active Grant

• Current Assignee: Codan Holding GmbH
• Original Assignee: Codan Holding GmbH
• Inventors: Hasler, Roland
• Primary Examiner(s): Sirmons; Kevin C
• Assistant Examiner(s): Doukas; Maria E
• Application Number:
  US11/436,907
• Publication Number:
  US 20070270765A1
• Time in Patent Office: 1,265 Days
• Field of Search: 604/250, 604/131, 604/151, 604/246, 604/111
• US Class Current: 604/250
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 39/28 Clamping means for squeezing flexible tubes, e.g. roller clamps tube strippers A61M1/83
• CPC Class Codes: A61M 39/281 Automatic tube cut-off devices, e.g. squeezing tube on detection of air
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member

Abstract

The invention concerns an arrangement to couple an intravenous hose having a roller clamp with an infusion pump. A hose clamp has clamping surfaces in the form of legs which can move relative one another about a hinge, the legs being enveloped on their outside by a biased clamping spring, and the device is formed by an expander rib that is fastened on the inside of the door and can be brought into engagement with the legs of the hose clamp so to produce the open position after closing the door to expand the legs. The housing has a receiver, into which the hose clamp can be snapped, and that a locking device is present in the housing that prevents the closing of the door if the hose clamp is not inserted into the receiver and permits the closing of the door when the hose clamp is fully inserted.

Claims

1. An arrangement for coupling an intravenous hose having a roller clamp with an infusion pump with a housing to deliver a medicinal solution to a patient, comprising:

a hose clamp that can be coupled with the intravenous hose and can be displaced between an open position, in which the medicinal solution can flow through the hose, and a closed position, in which the hose is closed by the hose clamp,

a device mounted on the door or lid of the housing, that can be engaged with the hose clamp to bring it to the open position from the closed position,

wherein the hose clamp has clamping surfaces in the form of legs which can move relative one another about a hinge, the legs being enveloped on their outside by a biased clamping spring, wherein the device is formed by an expander rib that is fastened on the inside of the door and can be brought into engagement with the legs of the hose clamp so that to produce the open position after closing the door to expand the legs,

wherein the housing has a receiver, into which the hose clamp can be snapped,

and wherein a locking device is present in the housing that prevents the closing of the door if the hose clamp is not inserted into the receiver and permits the closing of the door when the hose clamp is fully inserted wherein the locking device is formed by a locking slide biased by means of a spring, said locking slide interacting with a stop on the inside of the door and slides on an inclined surface of the stop when the hose clamp is inserted into the infusion pump to bring about the open position and the door is closed.

2. The arrangement according to claim 1 wherein in the region of the receiver a printed circuit board with a sensor is mounted, that detects whether the hose clamp is pushed in or not.

3. The arrangement according to claim 1 wherein for the storage of the infusion pump when not in use a securing by magnets is provided, that holds the door closed, while the stop is provided on the locking slide.

4. The arrangement according to claim 1 wherein the hose clamp can be snapped into the receiver in a form-locking manner.

5. The arrangement according to claim 1 wherein horizontal hose guides are provided in the housing both on the entry and outlet sides.

6. The arrangement according to claim 1 wherein the door extends almost over the entire width of the housing and can be pivoted upwards into the closed position.

7. The arrangement according to claim 1 wherein the anti-free-flow hose clamp is positioned past the entry into the housing and before the drive of the infusion pump and is made from an injection moulded piece, the legs of which are enveloped by a metal clamping spring.

8. The arrangement according to claim 1 wherein the hose comprises PVC or PVC-free having a Shore hardness A 75 to 85, an inside diameter of 3.0 mm and an outside diameter of 4.10 mm, and the clamping force of the hose clamp is minimum 10 N.

9. The arrangement according to claim 1 comprising a volumetric infusion pump with a peristaltic drive.

10. The arrangement according to claim 1 wherein for the storage of the infusion pump when not in use a securing by magnets is provided, that holds the door closed, while the stop is provided on the locking slide.

11. The arrangement according to claim 1 wherein the hose clamp can be snapped into the receiver in a form-locking manner.

12. The arrangement according to claim 1 wherein horizontal hose guides are provided in the housing both on the entry and outlet sides.

13. The arrangement according to claim 1 wherein the door extends almost over the entire width of the housing and can be pivoted upwards into the closed position.

14. The arrangement according to claim 1 wherein the anti-free-flow hose clamp is positioned past the entry into the housing and before the drive of the infusion pump and is made from an injection moulded piece, the legs of which are enveloped by a metal clamping spring.

15. The arrangement according to claim 1 wherein the hose comprises PVC or PVC-free having a Shore hardness A 75 to 85, an inside diameter of 3.0 mm and an outside diameter of 4.10 mm, and the clamping force of the hose clamp is minimum 10 N.

16. The arrangement according to claim 1 comprising a volumetric infusion pump with a peristaltic drive.

17. The arrangement according to claim 1, wherein in the region of the receiver a printed circuit board with a sensor is mounted, that detects whether the hose clamp is pushed in or not;

and wherein for the storage of the infusion pump when not in use a securing by magnets is provided, that holds the door closed, while the stop is provided on the locking slide; and

wherein the hose clamp can be snapped into the receiver in a form-locking manner; and

wherein horizontal hose guides are provided in the housing both on the entry and outlet sides; and

wherein the door extends almost over the entire width of the housing and can be pivoted upwards into the closed position; and

wherein the anti-free-flow hose clamp is positioned past the entry into the housing and before the drive of the infusion pump and is made from an injection moulded piece, the legs of which are enveloped by a metal clamping spring; and

wherein the hose comprises PVC or PVC-free having a Shore hardness A 75 to 85, an inside diameter of 3.0 mm and an outside diameter of 4.10 mm, and the clamping force of the hose clamp is minimum 10 N; and

further comprising a volumetric infusion pump with a peristaltic drive.