Methods and apparatus for delivery of ocular implants
First Claim
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1. An apparatus for implanting an ocular implant at a location in a patient'"'"'s eye comprising:
- a cannula having a lumen extending therethrough configured to receive an ocular implant; and
means for retaining an implant received within the cannula lumen to minimize inadvertent release of the implant from the cannula wherein the retention means comprises a frictional stop which extends into the cannula lumen for contacting an implant received therein, wherein the frictional stop comprises an O-ring, at least a portion of which extends into the cannula lumen for contacting an implant received therein, wherein the cannula includes a notch, the notch providing for communication between the cannula lumen and cannula exterior, and wherein the O-ring is positioned around the cannula and where a portion of the O-ring is received in the notch and extends into the cannula lumen.
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Accused Products
Abstract
An apparatus and methods for delivering ocular implants or microimplants. The apparatus is ergonomically designed for ease of use, and a simple manual depression of an actuator produces proportional movement of a linkage causing the implant or microimplant to be ejected through a cannula disposed at the desired location in the eye. Small gauge cannulas are provided for self-sealing methods of delivery.
231 Citations
7 Claims
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1. An apparatus for implanting an ocular implant at a location in a patient'"'"'s eye comprising:
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a cannula having a lumen extending therethrough configured to receive an ocular implant; and means for retaining an implant received within the cannula lumen to minimize inadvertent release of the implant from the cannula wherein the retention means comprises a frictional stop which extends into the cannula lumen for contacting an implant received therein, wherein the frictional stop comprises an O-ring, at least a portion of which extends into the cannula lumen for contacting an implant received therein, wherein the cannula includes a notch, the notch providing for communication between the cannula lumen and cannula exterior, and wherein the O-ring is positioned around the cannula and where a portion of the O-ring is received in the notch and extends into the cannula lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification