Catheter head comprising a flow sensor

• US 20030135154A1
• Filed: 12/19/2002
• Published: 07/17/2003
• Est. Priority Date: 07/20/2000
• Status: Abandoned Application

• Current Assignee: Disetronic Licensing Ag (Roche Holding AG)
• Original Assignee: Disetronic Licensing Ag (Roche Holding AG)
• Inventors: Heiniger, Hanspeter, Schiltges, Gilbert, Krieftewirth, Michael, Geiser, Simone, Yeandel, Julian
• Application Number:
  US10/325,472
• Publication Number:
  US 20030135154A1
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/16886 for measuring fluid flow rate, i.e. flowmeters

Abstract

The invention relates to a device for supplying liquid into a body, the device including a catheter head, a liquid supply to the catheter head and a means for measuring the flow of the liquid, wherein the means for measuring the flow is a flow sensor arranged directly on or in the catheter head.

Claims

1. A device for supplying liquid into a body, comprising a catheter head, a liquid supply to said catheter head and a means for measuring the flow of the liquid, wherein said means for measuring the flow is a flow sensor arranged directly on or in the catheter head.

2. The device as set forth in claim 1, wherein said flow sensor is arranged downstream of a catheter supply line of the catheter head.

3. The device as set forth in the preceding claim, wherein said flow sensor is arranged between the catheter supply line and a connecting needle of the catheter head which leads to a catheter cannula.

4. The device as set forth in claim 1, further comprising a data transfer means for data captured by the flow sensor.

5. The device as set forth in claim 4, wherein said data transfer means connects the flow sensor to a regulating means in a pump for the liquid, by means of which the flow is regulated to a predetermined value by comparing desired and actual values.

6. The device as set forth in claim 4, wherein the flow sensor comprises an analog/digital-converter which is integrated on a chip and digitally transfers the data captured.

7. The device as set forth in claim 4, wherein the data transfer means comprises cables which lead from the flow sensor in the catheter head along the liquid supply to a processing unit.

8. The device as set forth in the preceding claim, wherein said processing unit is the regulating means on the pump.

9. The device as set forth in claim 7, wherein line junctions at components of the liquid supply to be connected to each other are realized by contacts.

10. The device as set forth in the preceding claim, wherein said contacts are touching contacts.

11. The device as set forth in claim 4, wherein the data transfer means comprises cables which lead separately from the liquid supply to a processing unit.

12. The device as set forth in the preceding claim, wherein said processing unit is the regulating means on the pump.

13. The device as set forth in claim 11, wherein it is possible to connect the cables to the catheter head and fix them there by means of a plug-on adapter.

14. The device as set forth in claim 4, wherein the data transfer means comprises a transmitter which wirelessly transfers the data captured by the flow sensor to a receiver on a processing unit.

15. The device as set forth in the preceding claim, wherein said processing unit is the regulating means on the pump.

16. The device as set forth in claim 14, wherein it is possible to connect the transmitter to the catheter head and fix it there by means of a plug-on adapter.

17. A device for supplying liquid into a person'"'"'s body, comprising a catheter head, a liquid supply to said catheter head and a flow sensor associated with the catheter head.

18. The device according to claim 17, wherein the flow sensor comprises an analog/digital-converter which is integrated on a chip and digitally transfers flow data.

19. The device according to claim 17, further comprising a processing unit and a pump, operably coupled to the flow sensor in a feedback loop.

20. A device for supplying liquid into a person'"'"'s body, comprising a catheter head, a pump, a conduit through which the liquid may flow coupled to said catheter head and pump, a flow sensor carried by the catheter head, and a processing unit, said flow sensor, processing unit and pump operably coupled in a feedback loop.