Alcon, Inc.

Novartis Ag

Salomon Valencia

Jack Robert Auld

Brian William McDonell

Jose Luis Lopez

John R Underwood

Timothy C Ryan

Matthew D McCawley

Michael James Papac

Mark Alan Hopkins

Paul R Hallen

Robert Joseph Sanchez, Jr

Matthew Douglas Mccawley

Philip John Biancalana

Brian William Mcdonell

In some embodiments, a vitrectomy probe may include an inner cutting tube reciprocating in an outer tube. The outer tube includes a side port and the inner tube includes a distal cutting port, and, in some embodiments, an additional side port. In some embodiments, the inner tube may also include a flat upper edge that cuts across the outer tube side port. In some embodiments, a diaphragm drives the inner tube and may have an open-stroke side with a lower hardness material than a closed-stroke side. In some embodiments, an aspiration tube coupled to the vitrectomy probe may include a first aspiration tubing and a second aspiration tubing with a lower hardness than the first aspiration tubing. In some embodiments, the vitrectomy probe may be coupled to pneumatic tubing that is stepped or tapered.

Vitrectomy probe

Provided herein are vitrectomy instruments and related systems and methods in which the vitrectomy instruments may include a forward needle stop and a cutter stop to reduce dimensional variation of a cutter of the vitrectomy instruments, allowing for a location of the port formed in a needle of the cutter to be positioned closer to a distal tip of the cutter. With the port located closer to a distal end of the cutter, the port is able to be positioned closer to the retina of an eye.

Vitrectomy instrument with precision cutter stop

Vitrectomy probes and methods related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having a rotational helical cutter. An example helical cutter includes an outer cutter portion and an inner cutter portion received therewithin. The inner cutter portion is operable to rotationally reciprocate within the outer cutter portion about a longitudinal axis thereof. A helical shearing surface formed at a distal end of the inner cutter portion is operable to sever material entering the cutter via a port formed in the outer cutter portion.

Vitrectomy probe with rotational helical cutter

Systems, apparatuses, and methods of and for an ophthalmic surgical system are disclosed. An ophthalmic surgical system may include a vitreous probe having a housing sized and shaped for grasping by a user. The vitreous probe may also include a cutter extending from the housing and being sized to penetrate and treat a patient eye. The cutter may include an outer cutting tube coupled to the housing. The outer cutting tube may have an outer port formed at a distal end wall of the outer cutting tube and configured to receive tissue. The cutter may include a rotatable inner cutting member disposed within the outer cutting tube. The inner cutting member may include a first cutting surface that rotates across the outer port to cut the tissue when the inner cutting member is rotated.

Vitrectomy probe with end tissue cutter and associated devices, systems, and methods

An ophthalmic surgical probe having a modular drive assembly and a skin that is removable from the drive assembly. This design simplifies probe manufacturing and provides greater manufacturing flexibility.

Modular design for ophthalmic surgical probe

Growing community of inventors

Aliso Viejo, CA, United States of America

Salomon Valencia