Visual imaging system for ultrasonic probe

• US 7,142,905 B2
• Filed: 02/04/2003
• Issued: 11/28/2006
• Est. Priority Date: 12/28/2000
• Status: Expired due to Term

• Current Assignee: Guided Therapy Systems Llc
• Original Assignee: Guided Therapy Systems Llc
• Inventors: Slayton, Michael H., Barthe, Peter G.
• Primary Examiner(s): Smith, Ruth S.
• Application Number:
  US10/358,110
• Publication Number:
  US 20030176790A1
• Time in Patent Office: 1,393 Days
• Field of Search: 600/407, 600/427, 600/424, 600/439, 600/440, 600/549, 601 2- 4
• US Class Current: 600/427
• CPC Class Codes: A61B 8/00 Diagnosis using ultrasonic, sonic or infrasonic waves imaging of objects using sonar G01S15/00
• CPC Class Codes: A61B 8/42 Details of probe positioning or probe attachment to the patient
• CPC Class Codes: A61B 8/463 characterised by displaying multiple images or images and diagnostic data on one display composite display in devices for short-range imaging with acoustic waves G01S7/52074

Abstract

A non-invasive visual imaging system is provided, wherein the imaging system procures an image of a transducer position during diagnostic or therapeutic treatment. In addition, the system suitably provides for the transducer to capture patient information, such as acoustic, temperature, or ultrasonic images. For example, an ultrasonic image captured by the transducer can be correlated, fused or otherwise combined with the corresponding positional transducer image, such that the corresponding images represent not only the location of the transducer with respect to the patient, but also the ultrasonic image of the region of interest being scanned. Further, a system is provided wherein the information relating to the transducer position on a single patient may be used to capture similar imaging planes on the same patient, or with subsequent patients. Moreover, the imaging information can be effectively utilized as a training tool for medical practitioners.

Claims

1. A non-invasive treatment and imaging system comprising:

a control system configured for control of said non-invasive treatment and imaging system;

an extracorporeal probe assembly configured for treatment of a patient, said probe assembly comprising a transducer configured for obtaining patient information and for facilitating treatment of the patient; and

an imaging device configured for capturing positional information of said transducer with respect to a patient, said imaging device being directly attached to said transducer to move along with said transducer and to facilitate tracking any movement of said transducer.

2. A system according to claim 1, wherein said control system is configured for assessing the patient information and the positional information to facilitate use of said transducer at a desired position with respect to the patient.

3. A system according to claim 1, wherein said transducer comprises an ultrasonic transducer, said ultrasonic transducer being adapted to transmit imaging information comprising ultrasonic images of a treatment region of the patient to said control system.

4. A system according to claim 3, wherein said control system further comprises a central processing unit, said central processing unit comprising an algorithm configured for processing the imaging information and the positional information.

5. A system according to claim 4, wherein said control system further comprises a memory unit for storing the imaging information and the positional information.

6. A system according to claim 4, wherein said control system further comprises a display unit for displaying the imaging information and the positional information.

7. A system according to claim 6, wherein the positional information is combined via said algorithm within said control system with at least one of an acoustic image, a thermal image, and a therapy treatment image to provide a combined image.

8. A system according to claim 6, wherein the positional information is combined via said algorithm and said control system with the imaging information to provide a fused image.

9. A system according to claim 8, wherein said fused image comprises the positional information configured to display a position of said transducer relative to the patient in fusion with the imaging information configured to display an ultrasonic image of a treatment region.

10. A system according to claim 9, wherein said fused image provides an image similar to a cross-sectional view of the patient and the treatment region.

11. A system according to claim 9, wherein said display unit is configured to display a primary image comprising said fused image, and is configured to display a secondary image comprising one of the positional information configured to display the position of said transducer relative to the patient and the imaging information configured to display the ultrasonic image of the treatment region.

12. A system according to claim 8, wherein said probe assembly comprises a positioning indicator configured with said transducer, said positioning indicator configured to permit said control system to correlate a geometry position of said transducer with respect to the patient to a geometry of an ultrasonic image of a treatment region of the patient.

13. A system according to claim 12, wherein said positioning indicator facilitates scaling of the fused image during changes in position of said transducer.

14. A system according to claim 12, wherein said positioning indicator comprises a series of triangulation marks.

15. A system according to claim 12, wherein said positioning indicator comprises at least one of an electromagnetic device and a gravitational accelerometer.

16. A system according to claim 1, wherein said transducer comprises at least one of an acoustic, therapy and treatment monitoring transducer and is configured for transmitting said patient information to said control system.

17. A system according to claim 1, wherein said transducer comprises a combined ultrasonic imaging, therapy and temperature monitoring transducer and is configured for transmitting said patient information to said control system.

18. A system according to claim 1, wherein said imaging device comprises a video camera configured for sending a video stream to said control system, said video stream correlative of the positional information of said transducer during treatment.

19. A system according to claim 1, wherein said probe assembly further comprises an arm member connecting said imaging device to a housing of said transducer in a fixed position relative to said transducer, said arm member being configured to facilitate the capturing of positional information by said imaging device of said transducer during operation.

20. A system according to claim 19, wherein said probe assembly further comprises an attachment device for attaching said arm member to the housing of said transducer.

21. A non-invasive treatment and imaging system, said system comprising:

an extracorporeal probe assembly configured for treatment of a patient, said extracorporeal probe assembly comprising an ultrasonic transducer, said ultrasonic transducer being adapted to send imaging information comprising ultrasonic images of a treatment region of the patient for facilitating treatment of the patient; and

an imaging device configured for capturing positional information of said transducer with respect to a patient during operation, said imaging device being configured for physical attachment to said transducer during operation to facilitate tracking of movement of said transducer, said imaging device and said transducer separated by a fixed distance and configured to move substantially in unison.

22. A system according to claim 21, wherein said non-invasive treatment and imaging system is configured to permit a control system to assess the positional information to facilitate use of said transducer at a desired position with respect to the patient.

23. A system according to claim 21, wherein said transducer comprises a combined ultrasonic imaging, therapy and temperature monitoring transducer and is configured for transmitting patient information to a control system.

24. A system according to claim 21, wherein said probe assembly further comprises an arm member connecting said imaging device to a housing of said transducer, said arm member being configured to facilitate the capturing of positional information of said transducer during operation.

25. A system according to claim 24, wherein said arm member comprises an adjustable device which can position said imaging device in a plurality of fixed positions with respect to said transducer to provide a plurality of views of said transducer with respect to the patient.

26. A system according to claim 24, wherein said arm member comprises a substantially rigid member which can position said imaging device in a substantially permanent position with respect to said transducer to provide a fixed view of said transducer with respect to a patient.

27. A system according to claim 24, wherein said arm member is integrated directly into the housing of said transducer.

28. A system according to claim 24, wherein said probe assembly further comprises an attachment device for attaching said arm member to the housing of said transducer.

29. A system according to claim 28, wherein said attachment device comprises a clip configured to securely attach said arm member to the housing of said transducer, said clip having an inner contour shaped to an outer contour of the housing of said transducer such that once said clip is attached to said transducer, said imaging device can follow in a direct correlation to movement and position of said transducer.

30. A system according to claim 21, wherein said probe assembly further comprises a positioning indicator configured to provide geometric information regarding the positional information of said transducer during operation.

31. A system according to claim 30, wherein said imaging information and said positional information are combined to provide a fused image.

32. A system according to claim 31, wherein said fused image comprises the positional information configured to display a position of said transducer relative to the patient in fusion with the imaging information configured to display an ultrasonic image of treatment region.

33. A system according to claim 32 wherein said fused image is substantially identical to a cross-sectional view of the patient and the treatment region.

34. A system according to claim 31, wherein said positioning indicator facilitates scaling of the fused image during changes in position of said transducer.

35. A non-invasive treatment and imaging system comprising:

a control system configured for operation of said treatment and imaging system;

an extracorporeal probe assembly configured for facilitating non-invasive treatment of a patient, said probe assembly comprising a transducer configured for obtaining imaging information and delivering ultrasound energy to said patient for treatment; and

an imaging device configured for capturing orientation information of said transducer with respect to the patient, said imaging device being rigidly attached to said transducer during positioning of said transducer such that a spatial relationship between said imaging device and said probe remains substantially fixed.

36. The treatment and imaging system according to claim 35, wherein said control system is configured for assessing said imaging information and said orientation information to facilitate use of said transducer at a desired position with respect to the patient.

37. The treatment and imaging system according to claim 35, wherein said orientation information is combined with said imaging information via an algorithm within said control system to provide a fused image.

38. The treatment and imaging system according to claim 37, wherein said display unit is configured to display a primary image comprising said fused image, and is configured to display a secondary image comprising one of said orientation information and said imaging information.

39. The treatment and imaging system according to claim 35, wherein said transducer comprises a positioning indicator configured to facilitate said control system in correlating orientation of said transducer with respect to the patient.

40. The treatment and imaging system according to claim 39, wherein said positioning indicator comprises a series of triangulation marks.

41. A system for use in providing non-invasive treatment of a patient, said system comprising:

non-invasive probe assembly comprising an ultrasonic transducer adapted to obtain imaging information of a treatment region of the patient and to deliver ultrasonic energy to the treatment region for treatment;

a positioning device configured for capturing positional information of said transducer with respect to the patient, wherein said positioning device is connected to said transducer through an arm member comprising a substantially rigid member which can position said positioning device in a plurality of substantially fixed positions with respect to said transducer; and

said positioning device being physically attached in a fixed position relative to said transducer during positioning of said transducer, and wherein said positional information and said imaging information are combined on a real-time basis.

42. The system according to claim 41, wherein said transducer further comprises a positioning indicator configured to facilitate capturing geometric information from said transducer during operation.

43. The system according to claim 41, further comprising an imaging device, wherein said imaging device comprises a conventional device capable of capturing visual information relating to the position of said transducer.