ELECTROSURGICAL DEVICE INCORPORATING A PHOTO-ACOUSTIC SYSTEM FOR INTERROGATING/IMAGING TISSUE

• US 20130345541A1
• Filed: 06/19/2013
• Published: 12/26/2013
• Est. Priority Date: 06/26/2012
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: NAU, WILLIAM H. Jr.
• Application Number:
  US13/922,006
• Publication Number:
  US 20130345541A1
• Time in Patent Office: Days
• US Class Current: 600/407
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/0063 Sealing
• CPC Class Codes: A61B 2018/1861 with an instrument inserted into a body lumen or cavity, e.g. a catheter
• CPC Class Codes: A61B 2018/1869 with an instrument interstitially inserted into the body, e.g. needles
• CPC Class Codes: A61B 2018/2005 with beam delivery through an interstitially insertable device, e.g. needle
• CPC Class Codes: A61B 2018/20359 by movable mirrors, e.g. galvanometric
• CPC Class Codes: A61B 2018/2272 with reflective or refractive surfaces for deflecting the beam A61B2018/2261, A61B2018/2266 take precedence
• CPC Class Codes: A61B 5/0095 by applying light and detecting acoustic waves, i.e. photoacoustic measurements
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence

Abstract

The present disclosure is directed to an electrosurgical system for imaging and interrogating tissue. The electrosurgical system includes an energy source configured to generate a first energy and an electrosurgical instrument. the electrosurgical instrument includes a transmission line coupled to the energy source and configured to emit the first energy. A mirror reflects the first energy towards a target tissue that emits a second energy. An ultrasonic transducer receives the second energy from the target tissue and converts the second energy into an electrical signal. A controller receives the electrical signal and converts the electrical signal into an image.

Claims

1. An electrosurgical system, comprising:

a first energy source configured to output a first energy;

an electrosurgical instrument including;

a housing;

a transmission line coupled to the first energy source and configured to emit the first energy;

a mirror configured to reflect the first energy towards a target tissue;

an ultrasonic transducer configured to receive a second energy from the target tissue and convert the second energy into an electrical signal; and

a controller configured to receive the electrical signal and convert the electrical signal into an image.

2. The electrosurgical system according to claim 1, wherein the electrosurgical instrument further comprises a motor coupled to the mirror and configured to translate the mirror along a longitudinal axis defined through the electrosurgical instrument.

3. The electrosurgical system according to claim 1, wherein the electrosurgical instrument further comprises a motor coupled to the mirror and configured to rotate the mirror around a longitudinal axis defined through the electrosurgical instrument.

4. The electrosurgical system according to claim 1, wherein the energy source is a laser.

5. The electrosurgical system according to claim 4, wherein the transmission line is an optical fiber.

6. The electrosurgical system according to claim 1, wherein the energy source is a microwave generator.

7. The electrosurgical system according to claim 6, wherein the transmission line is an antenna.

8. The electrosurgical system according to claim 1, wherein the electrosurgical instrument is an ablation needle.

9. The electrosurgical system according to claim 1, wherein the electrosurgical instrument is catheter.

10. An electrosurgical instrument, comprising:

a shaft;

a first jaw member and a second jaw member disposed at a distal end of the shaft and configured to grasp tissue therebetween;

an energy source configured to emit a first energy directed to target tissue; and

an ultrasonic transducer configured to receive a second energy from the target tissue and convert the second energy into an electrical signal.

11. The electrosurgical instrument according to claim 10, wherein the energy source is in the first jaw member and the ultrasonic transducer is in the second jaw member.

12. The electrosurgical instrument according to claim 10, wherein the energy source is movable from a first position to a second position along a longitudinal axis defined in the first jaw member.

13. The electrosurgical instrument according to claim 10, further comprising a mirror configured to reflect the first energy from the energy source toward the target tissue.

14. The electrosurgical instrument according to claim 13, wherein the mirror is in the first jaw member.

15. The electrosurgical instrument according to claim 14, wherein the ultrasonic transducer is in the first jaw member.

16. The electrosurgical instrument according to claim 10, further comprising a motor configured to move the mirror relative to a longitudinal axis defined through the shaft.

17. The electrosurgical instrument according to claim 16, where in the motor translates the mirror along the longitudinal axis defined through the shaft.

18. The electrosurgical instrument according to claim 16, where in the motor rotates the mirror around the longitudinal axis defined through the shaft.

19. The electrosurgical instrument according to claim 16, wherein the ultrasonic transducer, the mirror, and the motor are disposed in the shaft.

20. An electrosurgical instrument comprising:

a housing;

a transmission line adapted to connect to a first energy source and configured to emit a first energy;

a minor configured to reflect the first energy towards a target tissue; and

an ultrasonic transducer configured to receive a second energy from the target tissue and convert the second energy into an electrical signal,

wherein the first energy is different from the second energy.