Vitreous cutter
View Patent ↗A vitrectomy or needle made of a hard resistance metal glass alloy. The wall of the outer tubing or the entire needle can be illuminated when connected to a light source. The instrument, when inserted inside the tissue or the eye, provides illumination, thereby illuminating the surrounding tissue structure and eliminating the need for additional internal or external illumination.
1. A vitrectomy cutter, comprising:
a needle with a body and a closed end tip, said body of said needle including a sidewall extending in an axial direction from said closed end tip, said body of said needle defining a linear passageway closed at a distal end by said closed end tip, said needle coated with a black material and being configured to cut vitreous or tissue and being made from a compound that is transparent to visible light, wherein the compound is transparent to visible light from 400-800 nm, and wherein the compound comprises one of: metal glass, amorphous glass, palladium alloy, zirconium alloy and aluminum nitrloxyde; and
an illumination device connected to said body of said needle, such that said illumination device is capable of providing illumination to an inside portion of an eye through at least one of said closed end tip of said needle and said body of said needle,
wherein the needle includes an opening disposed in said sidewall of said body, said opening being disposed proximate to said closed end tip of said needle, and said opening being configured to enable cutting of the vitreous or the tissue.
2. The vitrectomy cutter according to claim 1 wherein said compound that is transparent to visible light is one of metal glass and amorphous glass.
3. The vitrectomy cutter according to claim 1 wherein said illumination device is connected to said body of said needle at a portion of said needle that does not enter the eye.
4. The vitrectomy cutter according to claim 1 wherein said illumination device is disposed inside said body of said needle.
5. The vitrectomy cutter according to claim 1 wherein said compound is aluminum nitryloxyde.
6. The vitrectomy cutter according to claim 1 wherein said needle is configured to cut the vitreous or the tissue such that the vitreous or the tissue is capable of being removed.
7. The vitrectomy cutter according to claim 1 wherein said needle is an outer tube, and said vitrectomy cutter further comprises an inner tube, and
wherein said inner tube is configured to oscillate so as to be capable of cutting the vitreous or the tissue that enters the opening in said outer tube.
8. The vitrectomy cutter according to claim 7 wherein said inner tube is configured to enable the cut vitreous or the cut tissue to be removed.
9. A vitrectomy cutter, comprising:
a needle with a body and a closed end tip, said body of said needle including a sidewall extending in axial direction from said closed end tip, said body of said needle defining a linear passageway closed at a distal end by said closed end tip, said needle coated with a black material and being configured to cut vitreous or tissue and being made from a compound that is transparent to visible light, wherein the compound is transparent to visible light from 400-800 nm, and wherein the compound comprises one of: metal glass, amorphous glass, palladium alloy, zirconium alloy and aluminum nitrloxyde; said needle further including an opening disposed in said sidewall of said body, said opening being disposed proximate to said closed end tip of said needle, and said opening being configured to enable cutting of the vitreous or the tissue; and
an illumination device connected to said body of said needle, such that said illumination device is capable of providing illumination to an inside portion of an eye through at least one of said closed end tip of said needle and said body of said needle, and through a portion of said needle that is adjacent to said opening disposed in said sidewall of said body.
10. The vitrectomy cutter according to claim 9 wherein said compound that is transparent to visible light is one of metal glass and amorphous glass.
11. The vitrectomy cutter according to claim 9 wherein said compound is aluminum nitryloxyde.
12. A vitrectomy cutter, comprising:
a needle in the form of an outer tube with a body and a closed end tip, said body of said needle including a sidewall extending in axial direction from said closed end tip, said body of said needle coated with a black material and defining a linear passageway closed at a distal end by said closed end tip, said needle being configured to cut vitreous or tissue and being made from a compound that is transparent to visible light, wherein the compound is transparent to visible light from 400-800 nm, and wherein the compound comprises one of: metal glass, amorphous glass, palladium alloy, zirconium alloy and aluminum nitrloxyde; said needle further including an opening disposed in said sidewall of said body, said opening being disposed proximate to said closed end tip of said needle, and said opening being configured to enable cutting of the vitreous or the tissue;
an inner tube arranged concentrically within said outer tube, said inner tube being configured to oscillate so as to be capable of cutting the vitreous or the tissue that enters said opening in said body of said outer tube; and
an illumination device connected to said body of said needle, such that said illumination device is capable of providing illumination to an inside portion of an eye through at least one of said closed end tip of said needle and said body of said needle, and through a portion of said needle that is adjacent to said opening disposed in said sidewall of said body.
13. The vitrectomy cutter according to claim 12 wherein said compound that is transparent to visible light is one of metal glass and amorphous glass.
14. The vitrectomy cutter according to claim 12 wherein said compound is aluminum nitryloxyde.
15. The vitrectomy cutter according to claim 12 wherein said inner tube is configured to remove the cut vitreous or the cut tissue by applying an aspiration force to the cut vitreous or the cut tissue.
16. The vitrectomy cutter according to claim 15 wherein said aspiration force is configured to draw the cut vitreous or the cut tissue through said opening disposed in said sidewall of said body of said outer tube.