Laser probe tip

1. A method, comprising:

producing electromagnetic radiation using a laser resonator;

transmitting the electromagnetic radiation from the laser resonator to a probe tip, wherein the probe tip includes a distal end of a waveguide, a primary capsule attached to the distal end of the waveguide, a secondary capsule positioned at least partially over the primary capsule, and at least one crimp on a proximal end of the secondary capsule to secure the secondary capsule to at least one of the primary capsule or the waveguide;

positioning the probe tip in a first fluid flow channel, wherein the first fluid channel extends distally of the crimp;

allowing fluid to flow into a second fluid flow channel between the primary capsule and the secondary capsule; and

delivering electromagnetic radiation to tissue.

2. The method of claim 1 , wherein the secondary capsule includes a proximal end portion, a distal end portion, and an outlet port between the proximal and distal end portions.

3. The method of claim 1 , wherein the at least one crimp includes an annular dent in the secondary capsule that extends towards the primary capsule.

4. The method of claim 1 , wherein the at least one crimp includes at least one tab.

5. The method of claim 1 , wherein the second fluid flow channel extends from the proximal end of the secondary capsule to an outlet port on a lateral portion of the secondary capsule.

6. The method of claim 1 , wherein the secondary capsule includes a malleable material.

7. The method of claim 1 , wherein the step of delivering electromagnetic radiation to tissue includes discharging the electromagnetic radiation in a lateral direction relative to a longitudinal axis of the optical fiber.

8. A method, comprising:

producing electromagnetic radiation using a laser resonator;

transmitting the electromagnetic radiation from the laser resonator to a probe tip, wherein the probe tip includes a distal end of a waveguide, a primary capsule having a transmissive surface, wherein the secondary capsule includes an outlet port on a first side and is secured to at least one of the waveguide or the primary capsule by a crimp, and wherein the crimp is formed by at least one deformable member positioned on a proximal end of the secondary capsule and on the first side of the secondary capsule;

positioning at least a portion of the probe tip in a first fluid flow channel of a medical device;

allowing fluid to flow into a second fluid flow channel between the primary capsule and the secondary capsule; and

delivering electromagnetic radiation to tissue.

9. The method of claim 8 , wherein:

a back side of the primary capsule, which is opposite a front side of the primary capsule, is pressed against a back side of the secondary capsule; and

the second fluid flow channel is formed between the front side of the primary capsule and a front side of the secondary capsule.

10. The method of claim 8 , wherein the second fluid flow channel extends from the proximal end of the secondary capsule to an outlet port of the secondary capsule.

11. The method of claim 8 , wherein the waveguide includes a protective layer, and wherein the crimp compresses the protective layer.

12. The method of claim 8 , wherein a distal end of the waveguide includes a beveled surface that is non-perpendicular to a longitudinal axis of the waveguide.

13. The method of claim 8 , wherein the step of positioning at least a portion of the probe tip in a first fluid flow channel of the medical device includes positioning at least a portion of the probe tip in the first fluid flow channel of at least one of an endoscope or cystoscope.

14. The method of claim 8 , further comprising a compressible member positioned between the primary capsule and the secondary capsule.

15. A method, comprising:

providing a medical device including a probe tip, wherein the probe tip includes a distal end of an optical fiber, a primary capsule attached to the distal end of the optical fiber, and a secondary capsule positioned at least partially over the primary capsule, wherein the secondary capsule is secured relative to the primary capsule by a crimp on a proximal end of the secondary capsule and a portion of the probe tip is in a first fluid flow channel distal to the crimp;

producing electromagnetic radiation;

transmitting the electromagnetic radiation to the probe tip;

allowing fluid to flow into a second fluid flow channel of the probe tip; and

discharging electromagnetic radiation from the probe tip.

16. The method of claim 15 , wherein the step of providing the medical device further includes that the crimp includes a tab proximate the proximal end of the secondary capsule.

17. The method of claim 15 , wherein the step of providing the medical device further includes that the crimp includes a deformation in the secondary capsule that extends towards the primary capsule.

18. The method of claim 15 , wherein the step of providing the medical device further includes that the secondary capsule includes a tubular sleeve having an open proximal end and an open distal end.

19. The method of claim 15 , wherein the step of discharging electromagnetic radiation includes discharging the electromagnetic radiation in a lateral direction relative to a longitudinal axis of the optical fiber.

20. The method of claim 15 , wherein the step of providing the medical device further includes that the optical fiber includes a protective layer, and wherein the crimp compresses the protective layer.