Lacrimal drainage manometer and method of use

摘要

A lacrimal drainage manometer includes a syringe having a syringe body and a piston. The syringe body defines a fluid cavity in fluid communication with a cannula configured for insertion into at least a portion of a lacrimal drainage system. The piston dispenses a fluid from the fluid cavity through the cannula. A pressure sensor is operably coupled to the syringe for measuring fluid pressure in the fluid cavity. A position sensor operably coupled to the syringe measures the position of the piston relative to the syringe body. A user feedback unit in electrical communication with the pressure sensor and the position sensor provides user feedback based on data from at least one of the pressure sensor and the position sensor indicative of a condition of the lacrimal drainage system.

主权项

1. A lacrimal drainage manometer comprising:
a syringe including a syringe body, a piston, and a plunger arm connected with and having a centerline extending parallel to the piston, the syringe body defining a fluid cavity in fluid communication with a cannula configured for insertion into at least a portion of a lacrimal drainage system, the piston for dispensing a fluid from the fluid cavity through the cannula; a pressure sensor operably coupled to the syringe for measuring fluid pressure in the fluid cavity; a position sensor operably coupled to the syringe and extending parallel to the length of the plunger arm for measuring the position of the plunger arm to indirectly measure the position of the piston relative to the syringe body; and a user feedback unit in electrical communication with the pressure sensor and the position sensor for providing user feedback based on data from at least one of the pressure sensor and the position sensor indicative of a condition of the lacrimal drainage system.