Ring design for capsulotomy device
A device is described herein for performing capsulotomies that improves temperature uniformity and current flow around a cutting element of the device. The device includes a series of features whose geometries help remove cold and/or hot spots from the cutting element while maintaining the mechanical strength of the cutting element. In an embodiment, a device includes a cutting element and one or more electrical leads for providing an electrical discharge to the cutting element. The device further includes wire tabs configured to conductively couple an electrical lead to cutting element. Each wire tab includes a central conductive path and one or more conductive shunt paths conductively separated by one or more slots. The device further includes anchor tabs that are each associated with a slot disposed along the circumference of the cutting element and positioned to at least partially separate an anchor tab from a portion of the cutting element.
1. A device comprising:
a suction cup;
a cutting element;
one or more electrical leads configured to provide an electrical discharge to the cutting element;
one or more wire tabs protruding from the cutting element, each of the one or more wire tabs configured to conductively couple an electrical lead of the one or more electrical leads to the cutting element, one or more of the wire tabs including a conductive path and a conductive shunt path conductively separated by one or more slots;
one or more anchor tabs protruding from the cutting element, each of the one or more anchor tabs associated with a slot horizontally disposed along a circumference of the cutting element; and
one or more mechanical tabs protruding from the cutting element, each of the one or more mechanical tabs adjacent to a slot positioned to at least partially separate a respective anchor tab from a bottom portion of the cutting element and configured to couple the cutting element to an inner surface of the suction cup.
2. The device of claim 1 , further comprising an anchor thread coupled to the cutting element via the one or more anchor tabs, the anchor thread configured to compress the cutting element for insertion of the device through an incision.
3. The device of claim 1 , further comprising a suction tube configured to provide suction to the suction cup, wherein the one or more electrical leads are disposed within the suction tube.
4. The device of claim 1 , further comprising a rigid extender configured to compress the cutting element for insertion of the device through an incision.
5. The device of claim 1 , further comprising a controller configured to control one or more electrical discharges to the cutting element via the one or more electrical leads.
6. The device of claim 1 , wherein a first width of the cutting element includes a cutout adjacent to each of the one or more anchor tabs, wherein the first width of the cutting element is less wide than a second width of the cutting element.
7. A device comprising:
a stem;
a cutting element coupled to a distal end of the stem;
one or more electrical leads for providing an electrical discharge to the cutting element; and
one or more wire tabs protruding from the cutting element, each of the one or more wire tabs configured to conductively couple an electrical lead of the one or more electrical leads to the cutting element, one or more of the wire tabs including a conductive path and a conductive shunt path conductively separated by one or more slots.
8. The device of claim 7 , further comprising:
one or more anchor tabs, each of the one or more anchor tabs associated with a slot horizontally disposed along a circumference of the cutting element and positioned to at least partially separate a respective anchor tab from a bottom portion of the cutting element.
9. The device of claim 8 , further comprising an anchor thread coupled to the cutting element via the one or more anchor tabs, the anchor thread configured to compress the cutting element for insertion of the device through an incision.
10. The device of claim 8 , wherein a first width of the cutting element includes a cutout adjacent to each of the one or more anchor tabs, wherein the first width of the cutting element is less wide than a second width of the cutting element.
11. The device of claim 7 , wherein each of the one or more wire tabs further includes an additional slot disposed within a central conductive path of the wire tab, the additional slot conductively separating portions of the central conductive path.
12. The device of claim 7 , wherein the cutting element further includes one or more mechanical tabs protruding from the cutting element, each of the one or more mechanical tabs adjacent to a slot horizontally disposed along a circumference of the cutting element and positioned to at least partially separate a respective mechanical tab from a portion of the cutting element.
13. The device of claim 7 , further comprising a suction cup, wherein the cutting element is connected to the suction cup along an inner surface of the suction cup.
14. The device of claim 13 , further comprising a suction tube configured to provide suction to the suction cup, wherein the one or more electrical leads are disposed within the suction tube.
15. The device of claim 7 , further comprising a rigid extender configured to compress the cutting element for insertion of the device through an incision.
16. The device of claim 7 , further comprising a controller configured to control one or more electrical discharges to the cutting element via the one or more electrical leads.
17. A device comprising:
a stem;
a cutting element coupled to a distal end of the stem;
one or more electrical leads for providing an electrical discharge to the cutting element; and
one or more tabs protruding from the cutting element, each of the one or more tabs associated with one or more slots, and wherein at least one tab is a wire tab configured to conductively couple to an electrical lead of the one or more electrical leads to the cutting element, the wire tab including a conductive path that is conductively separated from a conductive shunt path.
18. The device of claim 17 , wherein a tab of the one or more tabs is an anchor tab, and wherein a slot of the one or more slots is horizontally disposed along a circumference of the cutting element and positioned to at least partially separate the anchor tab from a portion of the cutting element.
19. The device of claim 18 , further comprising a controller configured to control one or more electrical discharges to the cutting element via the one or more electrical leads.
20. The device of claim 17 , wherein a tab of the one or more tabs is a mechanical tab, and wherein a slot of the one or more slots is positioned to at least partially separate the mechanical tab from a bottom portion of the cutting element and configured to couple the cutting element to a surface of a suction cup.