Laser system with fiber-bound communication

• US 7,006,749 B2
• Filed: 08/07/2003
• Issued: 02/28/2006
• Est. Priority Date: 08/07/2002
• Status: Active Grant

• Current Assignee: Dornier MedTech Systems GmbH
• Original Assignee: Dornier MedTech Systems GmbH
• Inventors: Hiereth, Werner, Austen, Jürgen, Illich, Wolfgang
• Primary Examiner(s): Song, Sarah
• Application Number:
  US10/638,289
• Publication Number:
  US 20040073202A1
• Time in Patent Office: 936 Days
• Field of Search: 385/31, 385/88, 385/92, 385/93, 385/137, 385/147, 385/33, 606 16- 18, 607/88, 607/89, 607/93, 607/94
• US Class Current: 385/137
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: B23K 26/0096 Portable laser equipment, e.g. hand-held laser apparatus surgical laser instruments A61B18/20, Dental Lasers A61C1/0046, Hand-held laser dental apparatus for curing resins A61C19/004
• CPC Class Codes: H04B 10/503 Laser transmitters

Abstract

A laser system is provided that includes a laser unit, an incoupling means for coupling the laser radiation into a light-guide, and an outcoupling means for coupling the laser radiation out from the light-guide. A data transmitting means is coupled to the incoupling means or outcoupling means and produces optical signals which are coupled into the light-guide via the incoupling means or the outcoupling means. These optical signals are received by a data receiving means at the other end of the light-guide. The laser system can be used for realizing a data communication between the hand-piece and the stationary unit of the laser system in the case of which additional cables between the hand-piece and the laser are not necessary for transmitting data.

Claims

1. A medical laser system, comprising:

a laser unit configured to produce laser radiation for medical treatment;

a light-guide having a first end and a second end;

an incoupling device configured to incouple the laser radiation from the laser unit into the first end of the light-guide;

an outcoupling device comprising at least one lens configured to outcouple the laser radiation from the second end of the light-guide;

a first data transmitter associated with the incoupling device and configured to provide first optical signals which are incoupled into the first end of the light-guide via the incoupling device;

a first data receiver associated with the outcoupling device and configured to receive the first optical signals from the second end of the light-guide;

a second data transmitter associated with the outcoupling device and configured to provide second optical signals which are reflected into the second end of the light-guide via the lens of the outcoupling device; and

a second data receiver associated with the incoupling device and configured to receive the second optical signals from the first end of the light-guide.

2. The laser system according to claim 1, wherein the first data transmitter is coupled to the incoupling device.

3. The laser system according to claim 1, wherein the second data receiver is coupled to the incoupling device.

4. The laser system according to claim 1, wherein the first data receiver is coupled to the outcoupling device.

5. The laser system according to claim 1, wherein the second data transmitter is coupled to the outcoupling device.

6. The laser system according to claim 1, wherein a wavelength of the first optical signals is different than a wavelength of the second optical signals.

7. The laser system according to claim 1, wherein a wavelength of the laser radiation is different than a wavelength of each of the first optical signals and the second optical signals.

8. The laser system according to claim 1, wherein the first optical signals comprise information concerning a status of the laser system.

9. The laser system according to claim 1, wherein the second optical signals comprise information concerning the status of the laser system.

10. The laser system according to claim 1, wherein each of the first optical signals and the second optical signals comprise at least one of information for controlling the laser unit, information for producing laser radiation, information for controlling the incoupling device, and information for controlling the outcoupling device.

11. The laser system according to claim 1, wherein the first optical signals comprise information for controlling a power level of the laser radiation.

12. The laser system according to claim 1, wherein the outcoupling device further comprises a lens system for focusing the laser radiation, the lens system comprising the at least one lens configured to outcouple the laser radiation from the second end of the light-guide.

13. The laser system according to claim 1, wherein the first data transmitter comprises a light emitting diode configured to emit the first optical signals.

14. The laser system according to claim 13, wherein the light emitting diode is configured to emit the first optical signals in a blue spectral range.

15. The laser system according to claim 1, wherein the second data transmitter comprises a light emitting diode configured to emit the second optical signals.

16. The laser system according to claim 15, wherein the light emitting diode is configured to emit the second optical signals in a blue spectral range.

17. The laser system according to claim 1, wherein the lens comprises a dielectric coating.

18. The laser system according to claim 1, wherein the incoupling device comprises a mirror with a dielectric coating, wherein the mirror is transparent to the laser radiation and is configured to reflect the second optical signals.

19. The laser system according to claim 1, wherein the first optical signals have specific pulse durations which make them distinguishable from the second optical signals and other interfering signals.

20. The laser system according to claim 1, wherein the second optical signals have specific pulse durations which make them distinguishable from the first optical signals and other interfering signals.

21. The laser system according to claim 1, wherein the second data receiver is further configured to detect additional optical signals.

22. The laser system according to claim 1, wherein the first data receiver is further configured to detect additional optical signals.

23. The laser system according to claim 1, wherein the first data transmitter comprises a pilot laser configured to indicate the focus of the laser radiation.

24. The laser system according to claim 1, further comprising a means for measuring reemitted radiation, wherein the reemitted radiation is produced when material is treated by the laser radiation.

25. The laser system according to claim 1, wherein the second data receiver is further configured to detect reemitted radiation, wherein the reemitted radiation is produced when material is treated by the laser radiation.

26. The laser system according to claim 1, further comprising a hand-piece connected via the light-guide to the laser unit.

27. The laser system according to claim 26, wherein the outcoupling device, the second data transmitter, and the second data receiver are integrated in the hand-piece.

28. The laser system according to claim 26, wherein the hand-piece comprises an operating device configured to provide electric signals that control the laser unit and to forward the electric signals to the second data transmitter to be converted to the second optical signals.

29. The laser system according to claim 26, wherein the hand-piece comprises a display unit operable to display information received via the first data receiving means.

30. The laser system according to claim 26, wherein the hand-piece further comprises:

an operating device configured to provide electric signals that control the laser unit and to forward the electric signals to the second data transmitter to be converted to the second optical signals;

a display unit operable to display information received via the first data receiving means; and

a rechargeable battery configured to supply power to the second data transmitter, the first data receiver, the operating device, and the display unit.

31. The laser system according to claim 30, further comprising a charging device coupled to the laser unit, the charging device comprising a holder configured to detachably fasten to the hand-piece, and wherein each of the holder and the hand-piece comprises at least one electric contact configured to charge the rechargeable battery.

32. The laser system according to claim 26, further comprising photocells configured to supply power to the second data, transmitter and the first data receiver, wherein the photocells are integrated in the hand-piece and are further configured to use at least one of conventional light and reflected laser radiation to generate electric energy.

33. The laser system according to claim 26, wherein the hand-piece comprises a modular structural design with interchangeable elements that are mountable to the hand-piece depending on the respective intended use of the laser system.

34. The laser system according to claim 33, wherein each of the interchangeable elements of the hand-piece comprises identification information that is arranged to be identified via a reading unit in the hand-piece when the the respective element is mounted to the hand-piece, whereby the identification information is forwarded to the second data transmitter and used for controlling at least one of the hand-piece and the laser unit.

35. The laser system according to claim 33, wherein the hand-piece comprises a modular structural design with interchangeable elements that are independently mountable to the hand-piece depending on the respective intended use of the laser system, each of the interchangeable elements of the hand-piece comprising identification information that is arranged to be identified via a reading unit in the hand-piece when the respective element is mounted to the hand-piece, whereby the identification information is forwarded to the second data transmitter and used for controlling at least one of the hand-piece and the laser unit.

36. The laser system according to claim 1, wherein a spectral sensitivity of the first data receiver is different than a spectral sensitivity of the second data receiver.