Vitreous cutter with integrated illumination system

Patent metadata

Field	Value
Publication number	US-10307290-B2
Application number	US-201615202896-A
Country	US
Kind code	B2
Filing date	Jul 6, 2016
Priority date	Jul 13, 2015
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

An illuminated microsurgical instrument is provided herein that includes a microsurgical instrument having a tubular member arranged to treat patient tissue at a surgical site, the tubular member having a distal tip, an inner surface, and an outer surface. The inner surface defines a lumen. The outer surface has a notch formed therein. The illuminated microsurgical instrument further includes an optical fiber arranged to deliver light to the surgical site. The optical fiber includes a proximal end arranged to receive a light beam from a light source and also includes a curved distal end arranged to emit light adjacent to the distal tip. A portion of the curved distal end is positioned within the notch and curves away from the tubular member.

First claim

What is claimed is:

1. An illuminated microsurgical instrument comprising:
a microsurgical instrument having a tubular member arranged to treat patient tissue at a surgical site, the tubular member having a distal tip and an outer surface; and
an optical fiber arranged to deliver light to the surgical site, the optical fiber including a proximal end arranged to receive a light beam from a light source and also including a distal end with a fiber distal tip that includes a beveled end arranged to refract light away from the tubular member outer surface;
wherein the outer surface of the tubular member has a notch formed therein;
wherein the outer surface includes a longitudinal groove formed therein, the optical fiber extending along the tubular member within the longitudinal groove, the notch having a depth greater than a depth of the longitudinal groove;
wherein the optical fiber is seated in the notch.

2. The illuminated microsurgical instrument of claim 1 , wherein the optical fiber is attached to the tubular member through an adhesive.

3. The illuminated microsurgical instrument of claim 1 , wherein the fiber distal tip is not curved away from the tubular member.

4. The illuminated microsurgical instrument of claim 1 , wherein the fiber distal tip is curved away from the tubular member.

5. The illuminated microsurgical instrument of claim 1 , further comprising a sleeve around the tubular member and the optical fiber.

6. An illuminated microsurgical instrument comprising:
a microsurgical instrument having a tubular member arranged to treat patient tissue at a surgical site, the tubular member having a distal tip and an outer surface; and
an optical fiber arranged to deliver light to the surgical site, the optical fiber including a proximal end arranged to receive a light beam from a light source and also including a distal end with a fiber distal tip that includes a beveled end arranged to refract light away from the tubular member outer surface;
wherein the outer surface of the tubular member has a notch formed therein;
wherein the outer surface includes a longitudinal groove formed therein, the optical fiber extending along the tubular member within the longitudinal groove, the notch having a depth greater than a depth of the longitudinal groove;
wherein the distal end of the optical fiber is a curved distal end arranged to emit light adjacent to the distal tip, a portion of the curved distal end being positioned within the notch, the curved distal end curving away from the tubular member.

7. The illuminated microsurgical instrument of claim 6 , wherein the curved distal end of the optical fiber comprises a tapered fiber tip portion, wherein the tapered fiber tip portion of the curved distal end of the optical fiber comprises an opaque coating thereon.

8. The illuminated microsurgical instrument of claim 6 , wherein the curved distal end of the optical fiber comprises:
a first portion that curves into the notch; and
a second portion that curves out of the notch.

9. The illuminated microsurgical instrument of claim 6 , wherein the curved distal end is affixed within the notch by an opaque adhesive material that surrounds a portion of the curved distal end.

10. The illuminated microsurgical instrument of claim 6 , wherein a central axis of a lumen extending within the tubular member is offset from a central axis of the outer surface of the tubular member such that a thickness of the tubular member is greater on a side comprising the optical fiber than a thickness of the tubular member on an opposite side.

11. The illuminated microsurgical instrument of claim 6 , wherein the tip of the curved distal end comprises a lens that focuses the light beam in a near field of the light beam and diverges the light beam in a far field of the light beam.

12. The illuminated microsurgical instrument of claim 6 , wherein the microsurgical instrument is a vitrectomy probe.

13. The illuminated microsurgical instrument of claim 6 , wherein the outer surface of the tubular member comprises an angled section that provides a cutting edge disposed distal of a port on the tubular member outer surface, wherein at least the angled section comprises an anti-glare surface.

14. A surgical system, the surgical system comprising:
a light source coupleable to an optical fiber to provide illumination at a distal end of the optical fiber; and
a vitrectomy subsystem having a vitrectomy cutter, the vitrectomy cutter including:
a tubular member with a distal tip and a lumen extending therein, the lumen being defined by an inner surface of a wall of the tubular member, the distal tip including a port extending through the wall of the tubular member; and
the optical fiber arranged to deliver light to a surgical site, the optical fiber including a proximal end for receiving a light beam from the light source and a distal end arranged to emit light adjacent to the port, a portion of the distal end being positioned within a notch extending from an outer surface of the tubular member into the wall, wherein a tip of the distal end is directed away from the tubular member;
wherein the outer surface includes a longitudinal groove formed in the wall, the optical fiber extending along the tubular member within the longitudinal groove, wherein the notch has a depth greater than a depth of the longitudinal groove.

15. The surgical system of claim 14 , wherein the distal end of the optical fiber comprises:
a less distal portion that curves into the notch; and
a more distal portion that curves away from the lumen.

16. The surgical system of claim 14 , wherein the distal end is affixed within the notch by an opaque adhesive material that surrounds a portion of the distal end.

17. The surgical system of claim 14 , further comprising a sleeve around the tubular member and the optical fiber.

18. A vitrectomy cutter comprising:
a tubular member arranged to remove vitreous from within an eye of a patient, the tubular member having a distal tip and a lumen extending therein, the lumen being defined by an inner surface of a wall of the tubular member, the distal tip comprising a port extending through the wall of the tubular member to receive vitreous into the lumen; and
an optical fiber arranged to deliver light into the eye, the optical fiber including a proximal end to receive a light beam from a light source and also including a distal end arranged to emit light adjacent to the port, a portion of the distal end being positioned within a notch formed in an outer surface of the tubular member, a portion of the distal end directed away from the tubular member;
wherein the outer surface of the tubular member includes a longitudinal groove formed therein, the optical fiber extending along the tubular member within the longitudinal groove, the notch having a depth greater than a depth of the longitudinal groove.

19. The vitrectomy cutter of claim 18 , wherein the distal end of the optical fiber comprises:
a first portion that curves into the notch; and
a second portion that curves out of the notch, the second portion being tapered, wherein a cross-sectional shape of at least part of the second portion of the distal end is oval.

20. The vitrectomy cutter of claim 18 , wherein a distal side of the port comprises an angled section that provides a cutting edge and wherein the angled section is treated to be one of a specular surface or an absorptive surface.

21. The vitrectomy cutter of claim 18 , wherein a tip of the distal end of

Assignees

• Novartis Ag

Inventors

• Kern Thomas
• Mirsepassi Alireza
• Papac Michael J
• Smith Ronald T
• Wheatley Barry L

Classifications

• A61B2017/00973

  pedal-operated · CPC title

• A61B90/30

  Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure · CPC title

• A61B2217/005

  with suction drainage system · CPC title

• A61F9/00736 Primary

  Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments (A61F9/008 takes precedence) · CPC title

• A61B2217/007

  with irrigation system · CPC title