A medical intervention device

• US 20090149740A1
• Filed: 11/21/2008
• Published: 06/11/2009
• Est. Priority Date: 12/11/2007
• Status: Active Grant

• Current Assignee: Siemens Healthineers AG (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: Hoheisel, Martin
• Granted Patent: US 8,977,342 B2
• Time in Patent Office: Days
• US Class Current: 600/424
• CPC Class Codes: A61B 2017/00694 with means correcting for movement of or for synchronisation with the body
• CPC Class Codes: A61B 2034/2048 using an accelerometer or inertia sensor
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/0818 Redundant systems, e.g. using two independent measuring systems and comparing the signals
• CPC Class Codes: A61B 2090/364 Correlation of different images or relation of image positions in respect to the body
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for

Abstract

The invention relates to a device for a medical intervention in or on moving tissue of a living being, said device having a medical instrument provided for the intervention, a position detection system by means of which the position of the medical instrument in the body of the living being can be determined, and at least one acceleration sensor for recording at least one movement of the instrument caused by the moving tissue. The invention also relates to a medical instrument for a medical intervention in or on moving tissue of a living being, said medical instrument having at least one acceleration sensor and a sensor of a position detection system, as well as to an operating method for the device.

Claims

1-16. -16. (canceled)

17. A medical intervention device, comprising:

a medical instrument that performs an intervention on a patient;

a position detection system that determines position data for a position of the medical instrument in a body of the patient;

an acceleration sensor that records a movement of the medical instrument caused by a moving tissue of the patient; and

a computing device that corrects the position data based on the movement of the medical instrument recoded by the acceleration sensor.

18. The medical intervention device as claimed in claim 17, wherein the acceleration sensor comprises a measured value recorder for recording the movement of the medical instrument in a spatial direction or in a rotational direction.

19. The medical intervention device as claimed in claim 17, wherein the acceleration sensor comprises a plurality of measured value recorders and each of the measured value recorders records the movement of the medical instrument in a spatial direction or in a rotational direction.

20. The medical intervention device as claimed in claims 17, further comprising a plurality of acceleration sensors.

21. The medical intervention device as claimed in claims 20, wherein at least one of the acceleration sensors is disposed on or in the medical instrument.

22. The medical intervention device as claimed in claims 20, wherein at least one of the acceleration sensors is disposed on a body surface of the patient.

23. The medical intervention device as claimed in claims 17, wherein the position detection system is an optical or an electromagnetic position detection system.

24. The medical intervention device as claimed in claims 17, wherein the position detection system comprises a sensor that is disposed in or on the medical instrument.

25. The medical intervention device as claimed in claims 17, wherein the medical instrument comprises a catheter or a puncture needle.

26. The medical intervention device as claimed in claims 17, wherein the intervention is performed in or on the moving tissue of the patient.

27. A medical instrument for performing a medical intervention on a patient, comprising:

a sensor of a position detection system that determines a position of the medical instrument in a body of the patient; and

an acceleration sensor that records a movement of the medical instrument caused by a moving tissue of the patient.

28. The medical instrument as claimed in claim 27, wherein the acceleration sensor comprises a measured value recorder for recording the movement of the medical instrument in a spatial direction or in a rotational direction.

29. The medical instrument as claimed in claim 27, wherein the acceleration sensor comprises a plurality of measured value recorders and each of the measured value recorders records the movement of the medical instrument in a spatial direction or in a rotational direction.

30. The medical instrument as claimed in claim 27, wherein the medical instrument comprises a catheter or puncture needle.

31. The medical instrument as claimed in claim 27, wherein the acceleration sensor is disposed at, in or on a tip region of the medical instrument.

32. A method for operating a medical instrument performing a medical intervention on a patient, comprising:

determining position data of the medical instrument in a body of the patient by a position detection system during the medical intervention;

recording a movement of the medical instrument caused by a moving tissue of the patient by an acceleration sensor; and

correcting the position data based on the movement of the medical instrument recoded by the acceleration sensor.

33. The method as claimed in claim 32, wherein an image of the medical instrument or a marker of a location of the medical instrument is superimposed on an image of the moving tissue based on the corrected position data of the medical instrument.

34. The method as claimed in claim 32, wherein the determination of the position data of the medical instrument is synchronized with the recording of the movement of the medical instrument.