Patents by Inventor David J. Kastan

David J. Kastan 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: 5221266
    Abstract: A device for safely taking bodily samples is taught. A stylet is held within a sheath and cap. The cap has biased flanges at the forward end thereof to prevent inadvertent forward extension and possible contamination with the stylet to a health care worker. The flanges are formed such that the needle is forwardly extendable past the flanges initially for use. Once retracted, the flanges prevent re-extension beyond offering protection to the user or other personnel. A strap connected to the stylet and the cap prevents the separation of the stylet from the cap. The cap is detachable from the sheath, thus allowing the stylet and the cap to be withdrawn leaving the sheath for use. The stylet would only be used once and discarded with the protective cap over the sharp end of the stylet. A fresh stylet and cap could be obtained for use with the original sheath if additional procedures with the same sheath is necessary.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: June 22, 1993
    Inventor: David J. Kastan