Laser vitrectomy and bleeding cessation tool
The present disclosure generally relates to a surgical instrument. The surgical instrument includes a base unit and a probe. The probe is disposed through an opening in a distal end of the base unit. The probe includes a port formed proximate to a distal tip of the probe. The distal tip includes a window, a lumen formed through the probe, and one or more optical fibers disposed in the lumen. The one or more optical fibers project a first laser light for irradiating an area proximate to the port to cut collagen fibers of vitreous material aspirated through the port. The one or more optical fibers further project a second laser light for cauterizing bleeding in an intraocular space of a patient.
1 . A surgical instrument for performing vitrectomy, comprising:
a base unit;
a probe coupled to a distal end of the base unit, the probe comprising:
a distal tip disposed at a distal end of the probe, the distal tip comprising a window;
a port formed in a side wall of the probe and proximate to the distal tip;
a lumen formed through the probe; and
one or more optical fibers disposed in the lumen, the one or more optical fibers configured to project a first laser light for irradiating an area proximate to the port, wherein the first laser light is configured to cut collagen fibers of vitreous material aspirated through the port, the one or more optical fibers further configured to project a second laser light through the window, wherein the second laser light is configured to cauterize a bleeding site;
wherein the window is configured to allow the second laser light to pass through the window and prevent the first laser light from passing through the window.
2 . The surgical instrument of claim 1 , wherein the one or more optical fibers comprise a single optical fiber configured to project the first laser light and the second laser light.
3 . The surgical instrument of claim 2 , wherein the window is spectrally selective to allow the second laser light to pass through the window and prevent the first laser light from passing through the window.
4 . The surgical instrument of claim 1 , wherein the window is coated with a filtering film configured to allow the second laser light to pass through the distal tip and prevent the first laser light from passing through the distal tip.
5 . The surgical instrument of claim 1 , wherein the one or more optical fibers comprise a first optical fiber configured to project the first laser light and a second optical fiber configured to project the second laser light.
6 . The surgical instrument of claim 5 , wherein the probe further comprises a distal endface disposed at the distal tip, and wherein the window forms a portion of the distal endface that is aligned with the second optical fiber such that the distal endface enables the second laser light to pass through the distal tip and prevents the first laser light from passing through the distal tip.
7 . The surgical instrument of claim 6 , wherein the window is coated in a filtering film configured to allow the second laser light to pass through the distal tip and prevent the first laser light from passing through the distal tip.
8 . The surgical instrument of claim 6 , wherein a portion of the window aligned with the first optical fiber is coated in an opaque film configured to prevent the first laser light and the second laser light from passing through the distal tip.
9 . A surgical instrument for performing vitrectomy, comprising:
a base unit;
a probe disposed through an opening in a distal end of the base unit, the probe comprising:
a distal tip comprising a window;
a port formed proximate to the distal tip;
a lumen formed through the probe; and
one or more optical fibers disposed in the lumen, the one or more optical fibers configured to project a first laser light for irradiating an area proximate to the port, wherein the first laser light is configured to cut collagen fibers of vitreous material aspirated through the port, the one or more optical fibers further configured to project a second laser light wherein the second laser light is configured to cauterize bleeding in an intraocular space of a patient, wherein the window is configured to allow the second laser light to pass through the window and prevent the first laser light from passing through the window.
10 . The surgical instrument of claim 9 , wherein the one or more optical fibers comprise a single optical fiber configured to project the first laser light and the second laser light.
11 . The surgical instrument of claim 10 , wherein the window is coated in a filtering film configured to allow the second laser light to pass through the distal tip and prevent the first laser light from passing through the distal tip.
12 . The surgical instrument of claim 9 , wherein the one or more optical fibers comprise a first optical fiber configured to project the first laser light and a second optical fiber configured to project the second laser light.
13 . The surgical instrument of claim 12 , wherein the probe further comprises a distal endface disposed at the distal tip, and wherein the window forms a portion of the distal endface that is aligned with the second optical fiber such that the distal endface enables the second laser light to pass through the distal tip and prevents the first laser light from passing through the distal tip.
14 . The surgical instrument of claim 12 , wherein the window is coated in a filtering film configured to allow the second laser light to pass through the distal tip and prevent the first laser light from passing through the distal tip.
15 . The surgical instrument of claim 12 , wherein a portion of the window aligned with the first optical fiber is coated in an opaque film configured to prevent the first laser light and the second laser light from passing through the distal tip.
16 . The surgical instrument of claim 1 , further comprising a first laser source operably coupled to the one or more optical fibers and configured to generate the first laser light configured to cut collagen fibers of vitreous material, and a second laser source operably coupled to the one or more optical fibers and configured to generate the second laser light configured to cause cauterization of a bleeding site within an eye.
17 . The surgical instrument of claim 16 , wherein the second laser light is a green laser light having a pulse rate within a range of 10 kilohertz and 500 kilohertz.
18 . The surgical instrument of claim 9 , further comprising a first laser source operably coupled to the one or more optical fibers and configured to generate the first laser light configured to cut collagen fibers of vitreous material, and a second laser source operably coupled to the one or more optical fibers and configured to generate the second laser light configured to cause cauterization of a bleeding site within an eye.
19 . The surgical instrument of claim 18 , wherein the second laser light is a green laser light having a pulse rate within a range of 10 kilohertz and 500 kilohertz.