Aspiration flow meter and control
AssigneeBausch & Lomb Incorporated
InventorWilliam J. Neubert
Life of this patent
Estimating the term…
Abstract
An ophthalmic surgical pump system 32 includes a collection reservoir 54 and a venturi pump 56 for creating a vacuum level for aspirating fluid and tissue from a surgical site to the collection reservoir 54. Aspiration tubing 50 connects to each of a surgical handpiece 46 and the collection reservoir 54. A flow meter 34 is electrically connected to either the aspiration tube 50 or the collection reservoir 54. Control circuitry 38 is connected to the flow meter 34 and to the venturi pump 56 for varying a vacuum level of the pump 56 to maintain a desired flow rate of the fluid and tissue being aspirated from the surgical site.
Claims5
An ophthalmic surgical pump system comprising:
- a collection reservoir;
- a venturi pump for creating a vacuum level for aspirating fluid and tissue from a surgical site to the collection reservoir;
- aspiration tubing for connection to each of a surgical handpiece and the collection reservoir;
- a flow meter electrically connected to one of the aspiration tubing and the collection reservoir;
- and
- control circuitry connected to the flow meter and to the venturi pump for varying the vacuum level of the pump thereby maintaining a desired flow rate of the fluid and tissue being aspirated from the surgical site.
A surgical pump system comprising:
- a pump for aspirating fluid and tissue from a surgical site to a collection reservoir;
- aspiration tubing for connection to each of a surgical handpiece and the collection reservoir;
- a flow meter electrically connected to one of the aspiration tubing and the collection reservoir;
- and
- control circuitry connected to the flow meter and to a console for displaying a flow rate of the aspirating fluid and tissue from the handpiece to the collection reservoir.
Dependencies are inferred from the claim text.