Patent · US Active

Surgical obturator

US8066729B2 · kind B2 · utility

4Cited by

28References

15Claims

0Family size

Assignee

Stryker Corporation · US

Inventors

Richard Mazzolla · Bloomfield, US
Michael Patton · Austin, US

Key dates

Filing date	Jul 13, 2004
Grant date	Nov 29, 2011
Priority date	—
Expiry date	Apr 13, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/346
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An obturator has an elongated shaft with a first shaft portion and a second shaft portion within an obturator housing. The distal end of the first shaft portion creates a first shield and the distal end of the second shaft portion creates a second shield. A blade having a piercing tip and cutting edges is interposed between the first shield and the second shield. In use, once the piercing tip passes the body wall, the first shield moves to cover the piercing tip and protect internal organs from accidental injury while the cutting edges continue to cut the body wall. Once the second shield passes through the body wall, the second shield moves to cover the cutting edges.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.