Patents by Inventor MICHAEL C. RATIGAN

MICHAEL C. RATIGAN 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: 11452816
    Abstract: In one aspect of the subject invention, a drug delivery device is provided which includes a reservoir for containing a medicament and has a proximal end and a distal end, the medicament including a suspension of solids in a liquid carrier. Further, the drug delivery device includes a needle in fluid communication with the reservoir and having a distal end for injection into a patient, and a proximal end in the reservoir. An accumulation surface is defined at least partially about the needle, distally of the proximal end of the needle. The accumulation surface defines a distally-extending indentation which is sized and shaped to collect, during use, solids that come out of suspension. Advantageously, with the subject invention, the accumulation surface allows for solids to accumulate at a location spaced from the proximal end of the needle, thereby minimizing the possibility of clogging the needle.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: September 27, 2022
    Assignee: Becton, Dickinson and Company
    Inventors: Roger Groskopf, Lionel Vedrine, Michael C. Ratigan
  • Publication number: 20190134310
    Abstract: In one aspect of the subject invention, a drug delivery device is provided which includes a reservoir for containing a medicament and has a proximal end and a distal end, the medicament including a suspension of solids in a liquid carrier. Further, the drug delivery device includes a needle in fluid communication with the reservoir and having a distal end for injection into a patient, and a proximal end in the reservoir. An accumulation surface is defined at least partially about the needle, distally of the proximal end of the needle. The accumulation surface defines a distally-extending indentation which is sized and shaped to collect, during use, solids that come out of suspension. Advantageously, with the subject invention, the accumulation surface allows for solids to accumulate at a location spaced from the proximal end of the needle, thereby minimizing the possibility of clogging the needle.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Inventors: Roger Groskopf, Lionel Vedrine, Michael C. Ratigan
  • Publication number: 20130245559
    Abstract: In one aspect of the subject invention, a drug delivery device is provided which includes a reservoir for containing a medicament and has a proximal end and a distal end, the medicament including a suspension of solids in a liquid carrier. Further, the drug delivery device includes a needle in fluid communication with the reservoir and having a distal end for injection into a patient, and a proximal end in the reservoir. An accumulation surface is defined at least partially about the needle, distally of the proximal end of the needle. The accumulation surface defines a distally-extending indentation which is sized and shaped to collect, during use, solids that come out of suspension. Advantageously, with the subject invention, the accumulation surface allows for solids to accumulate at a location spaced from the proximal end of the needle, thereby minimizing the possibility of clogging the needle.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 19, 2013
    Applicant: BECTON, DICKINSON AND COMPANY
    Inventors: ROGER W. GROSKOPF, LIONEL VEDRINE, MICHAEL C. RATIGAN