Trocar needle and expandable trocar tube
July 14, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMulti-lumen catheter Trocar method and apparatus Trocar with profile to reduce insertion force Expandable cannula having longitudinal wire and method of use Minimally invasive body cavity penetrating instruments Trocar system having expandable port Obturator for justing a flexible trocar tube Patent #: 5562677 InventorAssigneeApplicationNo. 891934 filed on 07/14/1997US Classes:606/185, Puncturing or piercing604/264, Body inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.)604/272, Body piercing condit (e.g., needle, etc.)606/191Internal pressure applicator (e.g., dilator)ExaminersPrimary: Dawson, Glenn K.Attorney, Agent or FirmForeign Patent References
International ClassA61B 017/34Foreign Application Priority Data1994-07-11 JPAbstractA trocar including a trocar tube and a trocar needle inserted into the trocar needle. The trocar tube has a tubular portion and a grip attached to the rear end of the tubular portion. The front end of the trocar tube is smaller in diameter than the rear end. The front end portion of the trocar tube can be expanded by inserting an expanding device of an inside diameter suited to the outside diameter of an operative device inserted. The trocar needle has a shaft a piercing end provided at the front side of the shaft, and a grip attached to the rear end of the shaft. The shaft becomes gradually smaller in diameter toward the front end.Field of SearchBody inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.)Body piercing condit (e.g., needle, etc.) Punch Puncturing or piercing Blunt dissectors Internal pressure applicator (e.g., dilator) Inflatable or expandible by fluid Inserted in female reproductive system Inserted in vascular system Detachable from inflation means Nose or throat Rectal or anal Expanding dilator (e.g., expanding arm, etc.) Nasal dilator With emboli trap or filter Laproscopic Inflatable | |
