Patents by Inventor John G. DiFrancesco

John G. DiFrancesco has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4349027
    Abstract: A needle guide for intra-ocular surgery designed for insertion through the corneal rim incision to span the anterior chamber of the patient's eye, and being thereby positioned to conduct surgical needles safely past the corneal endothelium, comprises an elongated narrow substantially rectangular guide plate having along each edge an elongated needle flange inturned to form a needle guide chamber dimensioned to embrace a surgical needle during its endwise telescoping passage through the guide chamber, and having an elongated suture-release slot too narrow to permit lateral removal of a surgical needle from the guide chamber, whereby the elongated narrow guide may be inserted spanning an anterior chamber, guided by trans-illumination, a pair of surgical needles secured to opposite ends of a first suture loop interlinked with a retention loop of an intra-ocular lens may be inserted through the respective guide chambers safely passing the endothelium to exit through the sclera opposite the corneal rim incision, l
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: September 14, 1982
    Inventor: John G. DiFrancesco