System for locating inflamed plaque in a vessel

• US 20040015069A1
• Filed: 12/26/2001
• Published: 01/22/2004
• Est. Priority Date: 12/27/1996
• Status: Abandoned Application

• Current Assignee: Volcano Therapeutics, Inc. (Koninklijke Philips N.V.)
• Original Assignee: Volcano Therapeutics, Inc. (Koninklijke Philips N.V.)
• Inventors: Brown, David Lloyd
• Application Number:
  US10/033,635
• Publication Number:
  US 20040015069A1
• Time in Patent Office: Days
• US Class Current: 600/407
• CPC Class Codes: A61B 5/0086 using infrared radiation
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 5/6853 with a balloon
• CPC Class Codes: A61B 5/6855 with a distal curved tip
• CPC Class Codes: G01J 5/0025 Living bodies ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00
• CPC Class Codes: G01J 5/02 Constructional details
• CPC Class Codes: G01J 5/025 Interfacing a pyrometer to an external device or network; User interface
• CPC Class Codes: G01J 5/026 Control of working procedures of a pyrometer, other than calibration; Bandwidth calculation; Gain control
• CPC Class Codes: G01J 5/07 Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position optical collimating elements G01J5/0806
• CPC Class Codes: G01J 5/08 Optical arrangements
• CPC Class Codes: G01J 5/0808 Convex mirrors
• CPC Class Codes: G01J 5/0813 Planar mirrors; Parallel phase plates
• CPC Class Codes: G01J 5/0821 Optical fibres
• CPC Class Codes: G01J 5/084 Adjustable or slidable
• CPC Class Codes: G01J 5/0893 Arrangements to attach devices to a pyrometer, i.e. attaching an optical interface; Spatial relative arrangement of optical elements, e.g. folded beam path G01J5/049 takes precedence

Abstract

A system for locating inflamed plaque in a vessel is provided herein. The system includes a receiver, a positioner and a sensor. The receiver receives information about a vessel wall of the vessel. The positioner is used to position the receiver in the vessel to receive information from the vessel wall. The sensor is connected to the receiver. In use, the positioner selectively moves the receiver in the vessel to collect information about the vessel wall. The information is then transferred to the sensor to determine the temperature at the vessel wall. Temperatures at various locations can be taken, with elevated temperatures being indicative of inflamed plaque.

Claims

1. A device for locating inflamed plaque on a vessel wall of a vessel of a patient, the device comprising:

at least one receiver insertable into the vessel, the receiver being adapted to receive information from the patient;

a positioner for selectively positioning the at least one receiver in the vessel; and

a sensor for receiving the information from the receiver and determining the presence of inflamed plaque based upon the information received from the receiver.

2. The device of claim 1 comprising a plurality of receivers, the receivers being positioned substantially circumferential around the positioner.

3. The device of claim 1 wherein the positioner positions the receiver near the vessel wall of the patient.

4. The device of claim 1 wherein the receiver receives infrared radiation from the vessel wall.

5. The device of claim 1 wherein the positioner includes a positioning guidewire having a movable section which is adapted to be maneuvered in the vessel so that the movable section can be positioned near the vessel wall in the vessel, and the at least one receiver is attached to the guidewire near the movable section.

6. The device of claim 1 wherein the receiver includes a luminescent material which is positioned proximate to the vessel wall by the positioner and the sensor receives information regarding the emissions from the luminescent material.

7. The device of claim 1 wherein the receiver is adapted to receive sound waves from the vessel wall and the sensor utilizes the information regarding the sound waves to determine the presence of inflamed plaque.

8. The device of claim 1 wherein the sensor monitors temperature at the at least one receiver to determine the presence of inflamed plaque.

9. A device for measuring temperature in a vessel wall of a vessel of a patient, the device comprising:

at least one receiver, insertable into the vessel, for receiving information about the vessel wall;

a positioner for selectively positioning the at least one receiver proximate the vessel wall; and

a sensor for receiving the information from the at least one receiver and determining temperature at the at least one receiver based upon the information received.

10. The device of claim 9 comprising a plurality of receivers, the receivers being positioned substantially circumferential around the positioner.

11. The device of claim 9 wherein the positioner positions the receiver near the vessel wall of the patient.

12. The device of claim 9 wherein the positioner includes a positioning guidewire having a movable section which is adapted to be maneuvered in the vessel so that the movable section can be positioned near the vessel wall in the vessel, and the at least one receiver is attached to the guidewire near the movable section.

13. The device of claim 9 wherein the receiver includes a luminescent material which is positioned proximate to the vessel wall by the positioner and the sensor receives information regarding the emissions from the luminescent material.

14. The device of claim 9 wherein the receiver receives sound waves from the vessel wall and the sensor utilizes the information regarding the sound waves to determine the temperature.

15. The device of claim 9 wherein the sensor monitors the temperature at the at least one receiver to determine the presence of inflamed plaque.

16. A method for determining a temperature at a vessel wall of an vessel, the method comprising the steps of:

providing a receiver insertable into the vessel, the receiver being adapted to receive information regarding the vessel wall

advancing a receiver in the vessel;

transferring the information from the receiver to a sensor; and

determining the temperature of the vessel wall at the receiver with the sensor.

17. The method of claim 16 wherein the step of providing a receiver includes providing a plurality of receivers, the receivers being positioned substantially circumferential around a positioner.

18. The method of claim 16 including the step of positioning the receiver near the vessel wall of the patient.

19. The method of claim 16 wherein the step of advancing the receiver includes the step of using a positioning guidewire having a movable section which is adapted to be maneuvered in the vessel so that the movable section can be positioned near the vessel wall in the vessel.

20. The method of claim 16 wherein the step of providing a receiver includes the step of providing a luminescent material adapted for positioning in the vessel.

21. The method of claim 16 wherein the step of providing a receiver includes the step of providing a receiver adapted for receiving sound waves in the vessel.

22. The method of claim 16 including the step of determining the presence of inflamed plaque with the sensor.

23. A method for locating inflamed plaque on a vessel wall of a vessel of a patient, the method comprising the steps of:

providing a receiver, the receiver being adapted to receive information about the patient;

selectively positioning the receiver in the vessel; and

determining the presence of inflamed plaque based upon the information received from the receiver.

24. The method of claim 23 wherein the step of providing a receiver includes providing a plurality of receivers, the receivers being positioned substantially circumferential around a positioner.

25. The method of claim 23 including the step of positioning the receiver near the vessel wall of the patient.

26. The method of claim 23 wherein the step of positioning the receiver includes the step of using a positioning guidewire having a movable section which is adapted to be maneuvered in the vessel so that the movable section can be positioned near the vessel wall in the vessel.

27. The method of claim 23 wherein the step of providing a receiver includes the step of providing a luminescent material adapted for positioning in the vessel.

28. The method of claim 23 wherein the step of providing a receiver includes the step of providing a receiver adapted for receiving sound waves in the vessel.

29. The method of claim 23 including the step of collecting infrared radiation with the receiver.