Apparatus for the automatic performance of diagnostic and/or therapeutic actions in body cavites

• US 6,650,920 B2
• Filed: 07/18/2001
• Issued: 11/18/2003
• Est. Priority Date: 07/18/2000
• Status: Active Grant

• Current Assignee: Biotronik Mess-Und Therapiegeraete GmbH & Company Ingenieurbuero Berlin (Biotronik SE & Company KG)
• Original Assignee: Biotronik Mess-Und Therapiegeraete GmbH & Company Ingenieurbuero Berlin (Biotronik SE & Company KG)
• Inventors: Schaldach, Max, Kranz, Curt, Gobrecht, Jens
• Primary Examiner(s): Cohen, Lee
• Application Number:
  US09/906,623
• Publication Number:
  US 20020042570A1
• Time in Patent Office: 853 Days
• Field of Search: 600/374, 600/424, 600/427, 600/439, 606/41, 606/194
• US Class Current: 600/374
• CPC Class Codes: A61B 2018/00351 Heart
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00875 Resistance or impedance
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/1076 for measuring dimensions inside body cavities, e.g. using catheters A61B3/1005 takes precedence
• CPC Class Codes: A61B 5/6885 Monitoring or controlling sensor contact pressure
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: Y10S 977/84 Manufacture, treatment, or detection of nanostructure

Abstract

An apparatus for the automatic performance of diagnostic and/or therapeutic actions in body cavities is provided with a base control unit, which is to be arranged extracorporally, and with a catheter-type actuator, which is coupled therewith and which is insertable in the corresponding body cavity and which, in the vicinity of its distal end, is provided with a diagnostically active detection equipment and/or a therapeutically active treatment equipment, and which, at least in the vicinity of its distal end, is provided with an actuation mechanism, which is triggered by the base control unit, for advance and/or twist and turn control of the actuator.

Claims

1. An apparatus for automatically performing diagnostic or therapeutic actions in body cavities (6), comprising

a base control unit (1);

and

a tubular actuator (3, 3′

) coupled to said base control unit, said tubular actuator having a distal end (35, 35′

) that is insertable into a corresponding body cavity (6), and

which, in a vicinity of the distal end (35, 35′

) is provided with at least one of a diagnostically active detection equipment and a therapeutically active treatment equipment (36, 36′

), and

which, at least in a vicinity of the distal end (35, 35′

), is provided with an internal actuation mechanism (43) triggered by the base control unit (1) via the actuator (3, 3′

) for at least one of advance control and twist and turn control of the actuator (3, 3′

), wherein the internal actuation mechanism is selected from the group consisting of electromechanically operated advance elements, pneumatic actuation elements, hydraulic actuation elements and piezoelectric stick-and-slip actuation elements,

wherein the actuator (3′

) has an expandable medial section (50) for it to be anchored in a body cavity (6).

2. An apparatus according to claim 1, wherein the distal end (35) of the actuator (3) is provided with a measuring sensor for detection of medically relevant data, as a diagnostically active detector.

3. An apparatus according to claim 1, wherein the distal end of the actuator (3, 3′

) is provided with at least one of an ablation electrode (36, 36′

) and a dilatation balloon as a therapeutically active treatment equipment.

4. An apparatus according to claim 1, wherein the actuator (3, 3′

) is provided with a contact sensor (10, 37, 37′

) for detection of mechanical contact with the wall (11, 49) of the body cavity (6).

5. An apparatus according to claim 1, wherein the base control unit (1) includes an orientation unit (12) for advance and direction control of the actuator (3, 3′

), with a coordinate plot, detected by measurement, of the corresponding body cavity (6) being recorded in a memory (7) as a basis for actuator control.

6. An apparatus according to claim 5, further comprising means for measuring the coordinates recorded in the memory (7) by imaging techniques.

7. An apparatus according to claim 5, further comprising a contact sensor (10, 37, 37′

) for measuring the coordinates recorded in the memory (7).

8. An apparatus according to claim 7, wherein motions of the body cavity (6) that are to be measured are detected by the contact sensor (10, 37) and incorporated in the measurement.

9. An apparatus according to claim 1, further comprising reference navigation means (8) connected to the base control unit (1) to be placed in, or in proximity to, the body cavity, functioning as a point of reference for determination of a position of the actuator (3).

10. An apparatus according to claim 1, further comprising at least one of a measuring and contact sensor (48) incorporated in at least one of an advance control and a twist-and-turn control of the actuator (3) for the distal end (35′

) of the actuator (3′

) to detect any motions of the body cavity (6) and track the motions of the body cavity (6).

11. An apparatus according to claim 1, wherein the medial section (50) is expandable spirally or by waves for anchoring in a blood vessel (47).

12. An apparatus according to claim 1, wherein deformation of the medial section (50) of the actuator (3′

) is produced by an automatically controllable actuation mechanism.

13. An apparatus for automatically performing diagnostic or therapeutic actions in body cavities (6), comprising

a base control unit (1);

and

a tubular actuator (3, 3′

) coupled to said base control unit, said tubular actuator having a distal end (35, 35′

) and being insertable into a corresponding body cavity (6), and

which, in a vicinity of the distal end (35, 35′

) is provided with at least one of a diagnostically active detection equipment and a therapeutically active treatment equipment (36, 36′

), and

which, at least in a vicinity of the distal end (35, 35′

), is provided with an internal actuation mechanism (43) triggered by the base control unit (1) via the actuator (3, 3′

) for at least one of advance control and twist and turn control of the actuator (3, 3′

),

wherein the actuator (3′

) has an expandable medial section (50) for it to be anchored in a body cavity (6).

14. An apparatus according to claim 13, wherein the distal end (35) of the actuator (3) is provided with a measuring sensor for detection of medically relevant data, as a diagnostically active detector.

15. An apparatus according to claim 13, wherein the distal end of the actuator (3, 3′

) is provided with at least one of an ablation electrode (36, 36′

) and a dilatation balloon as a therapeutically active treatment equipment.

16. An apparatus according to claim 13, wherein the actuator (3, 3′

) is provided with a contact sensor (10, 37, 37′

) for detection of mechanical contact with the wall (11, 49) of the body cavity (6).

17. An apparatus according to claim 13, wherein said internal actuation mechanism comprises advance elements for electromechanical operation, said advance elements comprising at least one of piezoelectric elements, electrostrictive polymer elements and micro mechanical actuation elements.

18. An apparatus according to claim 13, wherein an actuation mechanism for the actuator (3, 3′

) is formed by at least one of pneumatic and hydraulic actuation elements.

19. An apparatus according to claim 13, wherein the base control unit (1) includes an orientation unit (12) for advance and direction control of the actuator (3, 3′

), with a coordinate plot, detected by measurement, of the corresponding body cavity (6) being recorded in a memory (7) as a basis for actuator control.

20. An apparatus according to claim 19, comprising imaging means for detecting the coordinates recorded in the memory (7).

21. An apparatus according to claim 19, further comprising a contact sensor for detecting the coordinates recorded in the memory (7).

22. An apparatus according to claim 21, wherein motions of the body cavity (6) that are to be measured are detected by the contact sensor (10, 37) and incorporated in the measurement.

23. An apparatus according to claim 13, further comprising reference navigation means (8) connected to the base control unit (1) to be placed in, or in proximity to, the body cavity, functioning as a point of reference for determination of a position of the actuator (3).

24. An apparatus according to claim 13, wherein an actuation mechanism for the actuator (3, 3′

) is formed by piezoelectric stick-and-slip actuation elements (42, 43, 44, 45).

25. An apparatus according to claim 13, wherein any motions of the body cavity (6) are detected by at least one of a measuring and contact sensor (48) and are incorporated in at least one of an advance control and a twist-and-turn control of the actuator (3) for the distal end (35′

) of the actuator (3′

) to track the motions of the body cavity (6).

26. An apparatus according to claim 13, wherein the medial section (50) is expandable spirally or by waves for anchoring in a blood vessel (47).

27. An apparatus according to claim 13, wherein deformation of the medial section (50) of the actuator (3′

) is produced by an automatically controllable actuation mechanism.