Ophthalmic surgical systems and handpieces
AssigneeAlcon Inc.
InventorsEdward Troy Tanner, Brian William McDonell
Life of this patent
Estimating the term…
Abstract
In certain embodiments, a system includes a vitrectomy handpiece and a pneumatic assembly coupled to the vitrectomy handpiece. The vitrectomy handpiece includes a cutting assembly, and a diaphragm disposed in a drive chamber and coupled to the cutting assembly. The pneumatic assembly includes an airflow controlling member and an actuating assembly. The airflow controlling member is configured to direct air to the drive chamber to move the diaphragm, thereby actuating the cutting assembly. The actuating assembly is configured to actuate the airflow controlling member.
Claims15
A system comprising:
- a vitrectomy handpiece comprising:
- a cutting assembly;
- and
- a diaphragm disposed in a drive chamber and coupled to the cutting assembly;
- and
- a pneumatic assembly coupled to the vitrectomy handpiece, the pneumatic assembly comprising:
- an airflow controlling member configured to direct air to the drive chamber to move the diaphragm, thereby actuating the cutting assembly;
- and
- an actuating assembly configured to actuate the airflow controlling member.
A vitrectomy handpiece comprising:
- a cutting assembly;
- a diaphragm disposed in a drive chamber and coupled to the cutting assembly;
- and
- a pneumatic assembly coupled to the cutting assembly, the pneumatic assembly comprising:
- an airflow controlling member configured to direct air to the drive chamber to move the diaphragm, thereby actuating the cutting assembly;
- and
- an actuating assembly configured to actuate the airflow controlling member.
A vitrectomy handpiece comprising:
- a handpiece configured to be removably coupled to a cutting assembly, the handpiece comprising:
- an actuating assembly coupled to the cutting assembly and configured to actuate the cutting assembly to cut vitreous of an eye, the actuating assembly comprising:
- a piezoelectric assembly;
- and
- a spring coupled to the piezoelectric assembly and the cutting assembly,
- wherein the piezoelectric assembly engages with the spring to cause movement of the cutting assembly.
Dependencies are inferred from the claim text.