System and method for monitoring a parameter associated with the performance of a heart

• US 6,277,078 B1
• Filed: 11/19/1999
• Issued: 08/21/2001
• Est. Priority Date: 11/19/1999
• Status: Expired due to Term

• Current Assignee: Remon Medical Technologies Ltd. (Boston Scientific Corporation)
• Original Assignee: Remon Medical Technologies Ltd. (Boston Scientific Corporation)
• Inventors: Penner, Abraham, Rozenman, Yoseph, Porat, Yariv
• Primary Examiner(s): Nasser, Robert L.
• Application Number:
  US09/443,341
• Time in Patent Office: 641 Days
• Field of Search: 607/18, 607/23, 600/486, 600/488, 600/505
• US Class Current: 600/486
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/026 Measuring blood flow A61B3/1233, A61B3/1241 take precedence
• CPC Class Codes: A61B 5/029 Measuring or recording blood output from the heart, e.g. minute volume A61B8/065 takes precedence
• CPC Class Codes: A61B 5/6862 Stents
• CPC Class Codes: A61B 5/6876 Blood vessel

Abstract

An intrabody implantable system for long-term, real time monitoring of at least one parameter associated with heart performance. The system includes (a) a first sensor being implantable within a heart and being for collecting information pertaining to a pressure in a first cavity of the heart; (b) at least one additional sensor being implantable in an blood vessel supporting blood flow into or out of a second cavity of the heart, the at least one additional sensor being for collecting information pertaining to a pressure and a flow within the blood vessel; and (c) at least one device implantable in the body and being in data communication with the first sensor and the at least one additional sensor, the at least one device being for receiving the information pertaining to the pressure in the first cavity of the heart and the information pertaining to the pressure and the flow within the blood vessel and for relaying the information pertaining to the pressure in the first cavity of the heart and the information pertaining to the pressure and the flow within the blood vessel outside the body.

Claims

1. An intrabody implantable system for long-term, real time monitoring of at least one parameter associated with heart performance, the system comprising:

(a) a first sensor being implantable within a heart and being for collecting information pertaining to a pressure in a first cavity of the heart;

(b) at least one additional sensor being implantable in a blood vessel supporting blood into or out of a second cavity of the heart, said at least one additional sensor being for collecting information pertaining to a pressure and a flow within said blood vessel; and

(c) at least one device implantable in the body and being in data communication with said first sensor and said at least one additional sensor, said at least one device being for receiving said information pertaining to said pressure in the first cavity of the heart and said information pertaining to said pressure and said flow within said blood vessel and for relaying said information pertaining to said pressure in the first cavity of the heart and said information pertaining to said pressure and said flow within said blood vessel outside the body.

2. The system of claim 1, wherein said first cavity is a ventricle.

3. The system of claim 1, wherein said blood vessel is an artery.

4. The system of claim 3, wherein said artery is a pulmonary artery.

5. The system of claim 1, wherein said at least one additional sensor includes at least two pressure sensors being implantable in a spaced apart configuration within said blood vessel, said at least two pressure sensors being for collecting said information pertaining to said pressure and said flow within said blood vessel.

6. The system of claim 5, wherein said at least two pressure sensors are attached to or integrally formed with a stent assembly, said stent assembly being configured so as to be positionable within said blood vessel.

7. The system of claim 6, wherein said at least one device includes a plurality of devices and further wherein said stent assembly includes a device of said plurality of devices attached thereto and being in communication with each of said at least two pressure sensors.

8. The system of claim 1, further comprising an extracorporeal processing unit capable of receiving, processing and interpreting said information pertaining to said pressure in the first cavity of the heart and said information pertaining to said pressure and said flow within said blood vessel relayed outside the body by said at least one device.

9. The system of claim 1, wherein said first sensor is a pressure sensor and further wherein said information pertaining to said pressure in the first cavity of the heart pertains to both active and passive pressures within said first cavity.

10. The system of claim 1, wherein said at least one device includes at least one transducer for converting electric signal into a radiative signal.

11. The system of claim 10, wherein said radiative signal is selected from the group consisting of radio frequency, a magnetic field, an electric field and acoustic radiation.

12. The system of claim 10, wherein said at least one transducer is an acoustic transducer and further wherein said radiative signal is an acoustic signal.

13. The system of claim 10, wherein said transducer is a magnetic field transducer and further wherein said signal is a magnetic field signal.

14. The system of claim 1, further comprising at least one power source, said at least one power source being in electrical communication with said first sensor and said at least one additional sensor.

15. The system of claim 14, wherein said at least one power source is integrated into said at least one device.

16. The system of claim 14, wherein said at least one power source is selected from the group consisting of at least one energy containing power source and at least one energizeable power source.

17. The system of claim 16, wherein said at least one energizeable power source includes at least one transducer for converting a radiative energy into electric energy.

18. The system of claim 17, wherein said radiative energy is selected from the group consisting of radio frequency, a magnetic field, an electric field and acoustic radiation.

19. The system of claim 17, wherein said at least one transducer is an acoustic transducer and further wherein said radiative energy is an acoustic energy.

20. The system of claim 17, wherein said transducer is a magnetic field transducer and further wherein said radiative energy is a magnetic field.

21. The system of claim 1, wherein said at least additional sensor is attached to or integrally formed with a stent assembly, said stent assembly being configured so as to be positionable within said blood vessel.

22. The system of claim 21, wherein said at least one device includes a plurality of devices and further wherein said stent assembly includes a device of said plurality of devices attached thereto and being in communication with said at least one additional sensor.

23. A method of monitoring the heart performance of an individual, the method comprising the steps of:

(a) implanting within the patient'"'"'s body;

(i) a first sensor within a heart for collecting information pertaining to a pressure in a first cavity of the heart; and

(ii) at least one additional sensor in an blood vessel supporting blood flow into or out of a second cavity of the heart, said at least one additional sensor being for collecting information pertaining to a pressure and a flow within said blood vessel;

(b) extracorporeally retrieving and processing said information collected by said first sensor and said information collected by said at least one additional sensor;

(c) interpreting said information resultant from step (b) so as to yield interpreted information pertaining to the heart performance of the patient; and

(d) if required, repeating steps (b) through (c) a predetermined number of times over a predetermined time period so as to enable monitoring the heart performance of the individual.

24. The method of claim 23, wherein said first cavity is a ventricle.

25. The system of claim 23, wherein said blood vessel is an artery.

26. The system of claim 25, wherein said artery is a pulmonary artery.

27. The method of claim 23, wherein said information pertaining to a pressure in the first cavity of the heart pertains to both active and passive pressures within said first cavity.

28. The method of claim 23, wherein said at least one additional sensor includes at least two pressure sensors being implantable in a spaced apart configuration within said blood vessel, said at least two pressure sensors being for collecting said information pertaining to said pressure and said flow within said blood vessel.

29. The method of claim 23, wherein said first sensor is a pressure sensor and further wherein said information pertaining to said pressure in the first cavity of the heart pertains to both active and passive pressures within said first cavity.

30. The method of claim 29, wherein said communication is selected from the group consisting of wire communication and wireless communication.

31. The method of claim 30, wherein said wireless communication is effected via radiative energy selected from the group consisting of radiofrequency energy, acoustic energy and magnetic field energy.

32. The method of claim 23, wherein said at least additional sensor is attached to or integrally formed with a stent assembly, said stent assembly being configured so as to be positionable within said blood vessel.

33. The method of claim 23, wherein said step of extracorporeally retrieving and processing said information collected by said first sensor and said information collected by said at least one additional sensor is effected by an extracorporeal processing unit being in communication with said first sensor and said at least one additional sensor.

34. A method of monitoring the heart performance of an individual, the method comprising the steps of:

(a) collecting and processing information pertaining to a pressure in a cavity of the heart;

(b) collecting and processing information pertaining to a pressure and a flow within an blood vessel supporting blood flow into or out of the heart;

(c) interpreting said information resultant from step (b) and said information resultant from step (c) so as to yield interpreted information pertaining to the heart performance of the patient; and

(d) repeating steps (b)-(d) a predetermined number of times over a predetermined time period so as to enable monitoring the heart performance of the individual.