Coherent fiber bundle system and method for ophthalmic intervention
Systems and processes are described relating to laser-based ophthalmic intervention technologies, and, more specifically, to techniques for creating lesions on an eye using a modular system featuring one or more coherent fiber bundles configured to deliver laser energy to the eye from a separate housing wherein a laser source is located. The subject technology may be utilized to not only separate a patient from certain portions of the hardware, but also to facilitate patterned lesion creation using mobile devices such as LIO and laser endoprobe devices.
1. A system for laser treatment of an eye of a patient, the system comprising:
a coherent fiber bundle comprising a first end and a second end;
a first subsystem coupled to the first end of the coherent fiber bundle, the first subsystem configured to:
generate a patterned treatment beam comprising at least two separate areas of laser energy concentration, wherein a size of the at least two separate areas of laser energy concentration and a pattern formed by the at least two separate areas of laser energy concentration are adjustable by the first subsystem; and
direct the patterned treatment beam to the first end of the coherent fiber bundle; and
a second subsystem coupled to the second end of the coherent fiber bundle, the second subsystem configured to:
receive the patterned treatment beam from the second end of the coherent fiber bundle; and
transmit the patterned treatment beam to the eye of the patient.
2. The system of claim 1 , wherein the first subsystem is configured to direct the patterned treatment beam to a portion of the first end of the coherent fiber bundle, and wherein the second subsystem is configured to receive the patterned treatment beam from a portion of the second end of the coherent fiber bundle, the portion of the second end of the coherent fiber bundle corresponding to the portion of the first end of the coherent fiber bundle.
3. The system of claim 2 , wherein a relative location of the portion of the first end of the coherent fiber bundle with respect to the first end of the coherent fiber bundle is substantially the same as a relative location of the portion of the second end of the coherent fiber bundle with respect to the second end of the coherent fiber bundle.
4. The system of claim 1 , wherein the treatment beam is at a non-visible wavelength.
5. The system of claim 1 , wherein the treatment beam has a power in the range of 30 mW to 2 W.
6. The system of claim 1 , wherein the first subsystem comprises:
a laser source configured to generate a laser beam;
a spot size selector configured to:
receive the laser beam; and
adjust the size of the at least two separate areas of laser energy concentration by adjusting the size of the laser beam; and
scanning hardware configured to:
receive the size-adjusted laser beam from the spot size selector; and
generate the pattern formed by the at least two separate areas of laser energy concentration by selectively redirecting the received size-adjusted laser beam.
7. The system of claim 6 , wherein the laser source is further configured to generate an alignment beam having an average power of less than 1.2 mW and at a visible wavelength.
8. The system of claim 6 , wherein the scanning hardware comprises a collimating lens and a scanning device.
9. The system of claim 8 , wherein the scanning device comprises a galvanometer, micro-electro-mechanical (“MEMS”) device, or rotating polygon.
10. The system of claim 1 , wherein the first subsystem further comprises an interface for coupling to an LIO or endoprobe via a multi-mode fiber, the interface configured to transmit a single treatment beam through the multi-mode fiber.
11. The system of claim 1 , wherein the first subsystem is contained in a first housing that is physically separate from a second housing containing the second subsystem.
12. The system of claim 1 , wherein the second subsystem is incorporated within a slit lamp, endoprobe, or laser indirect ophthalmoscope (“LIO”).
13. The system of claim 12 , wherein the second subsystem is coupled to a slit lamp, endoprobe, or LIO.
14. The system of claim 1 , wherein the second subsystem comprises a field adjustment module for adjusting a field of view.
15. A method for laser treatment of an eye of a patient, the method comprising:
generating, by a first subsystem, a treatment beam comprising at least two separate areas of laser energy concentration, wherein a size of the at least two separate areas of laser energy concentration and a pattern formed by the at least two separate areas of laser energy concentration are adjustable by the first subsystem; and
directing, by the first subsystem, the patterned treatment beam to a first end of a coherent fiber bundle;
receiving, by a second subsystem, the patterned treatment beam from a second end of the coherent fiber bundle;
delivering the patterned treatment beam to the eye of the patient.
16. The method of claim 15 , wherein the patterned treatment beam is directed to a portion of the first end of the coherent fiber bundle, and wherein the patterned treatment beam is received from a portion of the second end of the coherent fiber bundle, the portion of the second end of the coherent fiber bundle corresponding to the portion of the first end of the coherent fiber bundle.
17. The method of claim 16 , wherein a relative location of the portion of the first end of the coherent fiber bundle with respect to the first end of the coherent fiber bundle is substantially the same as a relative location of the portion of the second end of the coherent fiber bundle with respect to the second end of the coherent fiber bundle.
18. The method of claim 15 , wherein the patterned treatment beam is at a non-visible wavelength.
19. The method of claim 15 , wherein the patterned treatment beam has a power in the range of 30 mW to 2 W.
20. The method of claim 15 , wherein the first subsystem comprises:
a laser source configured to generate a laser beam;
a spot size selector configured to:
receive the laser beam; and
adjust the size of the at least two separate areas of laser energy concentration by adjusting the size of the laser beam; and
scanning hardware configured to:
receive the size-adjusted laser beam from the spot size selector; and
generate the pattern formed by the at least two separate areas of laser energy concentration by selectively redirecting the received size-adjusted laser beam.
21. The method of claim 20 , wherein the laser source is further configured to generate an alignment beam having an average power of less than 1.2 mW and at a visible wavelength.
22. The method of claim 15 , wherein the second subsystem is incorporated within a slit lamp, endoprobe, or LIO.
23. The method of claim 22 , wherein the second subsystem is coupled to a slit lamp, endoprobe, or LIO.
24. The method of claim 15 , wherein the second subsystem comprises a field adjustment module for adjusting a field of view.