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Ophthalmic valved trocar cannula

  • US 8,277,418 B2
  • Filed: 11/22/2010
  • Issued: 10/02/2012
  • Est. Priority Date: 12/23/2009
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a single-piece cannula configured for insertion into an eye, wherein the cannula includes at least two tabs;

    an overcap affixed to the cannula, wherein the overcap is configured not to rotate relative to the cannula, wherein the overcap includes at least two slots and wherein the overcap is affixed to the cannula by receiving the at least two tabs in the corresponding at least two slots; and

    a seal between the cannula and the overcap, wherein the seal is configured to allow passage of a surgical tool into the cannula through a slit in the seal while inhibiting fluid flow through the seal when the surgical tool is not present in the seal;

    wherein the seal is overmolded into a depression in the overcap; and

    wherein the seal is molded into at least two holes in the overcap.

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