Illuminated suction apparatus

Patent metadata

Field	Value
Publication number	US-9308054-B2
Application number	US-201514732617-A
Country	US
Kind code	B2
Filing date	Jun 5, 2015
Priority date	Nov 10, 2009
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

An illuminated suction apparatus including a hand-held surgical device combining a high-performance non-fiber optic optical waveguide with suction. This device is useful in a wide array of surgical procedures including open and minimally invasive orthopedics.

First claim

What is claimed is:

1. An illuminated medical device comprising:
a non-fiber optic optical waveguide having a first index of refraction;
an optical cladding disposed on at least a portion of the non-fiber optic optical waveguide, the optical cladding having a second index of refraction lower than the first to preserve total internal reflection of light passing through the non-fiber optic optical waveguide;
a medical or surgical instrument coupled to the waveguide;
a cradle having a channel sized to engage with the medical or surgical instrument;
a portion of the waveguide forms a saddle having a concave inner surface that is shaped to match the outer surface of the surgical instrument.

2. The illuminated medical device of claim 1 , wherein the cradle further includes a plurality of standoffs, the cradle at least partially surrounding the waveguide and contacting the waveguide only at the standoffs such that an air gap is generally provided between the waveguide and the cradle.

3. The illuminated medical device of claim 1 , further comprising means for sealing a distal end of the cradle to prevent fluid infiltration into the air gap.

4. The illuminated medical device of claim 3 , wherein the sealing means is one of an adhesive or an o-ring.

5. The illuminated medical device of claim 1 , further comprising second optical cladding provided on at least a portion of the waveguide.

6. The illuminated medical device of claim 5 , wherein the second optical cladding is air.

7. The illuminated medical device of claim 1 , wherein the optical cladding is air.

8. The illuminated medical device of claim 1 , wherein the medical or surgical instrument is a suction tube.

9. The illuminated medical device of claim 8 , wherein the suction tube includes suction holes and radially extending fins, the fins being configured to prevent tissue from being drawn into the suction holes.

10. The illuminated medical device of claim 9 , wherein the fins are radially expandable.

11. The illuminated medical device of claim 9 , wherein at least some of the fins are electrically conductive.

12. The illuminated medical device of claim 1 , wherein the cross-sectional area of the waveguide near the distal end is larger than the cross-sectional area of the waveguide near the proximal end.

13. The illuminated medical device of claim 1 , wherein the cross-sectional area of the waveguide varies along a length of the waveguide.

14. The illuminated medical device of claim 1 , further comprising a main handle having two or more discrete portions which engage with one another and at least partially surround a portion of the medical or surgical instrument.

15. The illuminated medical device of claim 14 , further comprising a pistol grip handle engaged with the main handle.

16. The illuminated medical device of claim 1 , wherein at least a portion of both the waveguide and the medical or surgical instrument are formed of a malleable material enabling dynamic shaping thereof.

17. The illuminated medical device of claim 1 , wherein the optical cladding is interposed between the standoffs and the waveguide such that the cradle does not directly engage with the waveguide.

18. The illuminated medical device of claim 1 , wherein the waveguide has an inner saddle portion which at least partially surrounds the medical or surgical instrument and has a first radius of curvature, the waveguide further having an outer saddle portion and has a second radius of curvature greater than the first radium of curvature.

19. The illuminated medical device of claim 18 , wherein the optical cladding at least partially surrounds the outer saddle portion.

20. The illuminated medical device of claim 18 , wherein an air gap is provided between the inner saddle portion and the medical or surgical instrument.

21. The illuminated medical device of claim 1 , wherein the medical or surgical instrument includes a plurality of radially extending fins.

22. The illuminated medical device of claim 21 , wherein the fins are radially expandable.

23. The illuminated medical device of claim 21 , wherein at least one of the fins is electrically conductive.

Assignees

• Invuity Inc

Inventors

• Vayser Alex
• Erismann Fernando
• Rimer Douglas
• Zagatsky Vladimir

Classifications

• A61M1/84

  Drainage tubes; Aspiration tips (for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32) · CPC title

• A61B1/0625

  for multiple fixed illumination angles · CPC title

• A61B1/04

  combined with photographic or television appliances · CPC title

• A61B1/07

  using light-conductive means, e.g. optical fibres · CPC title

• A61B1/0017

  Details of single optical fibres, e.g. material or cladding · CPC title