Patent · US Active

Surgical obturator

US8523895B2 · kind B2 · utility

3Cited by

5References

22Claims

0Family size

Assignee

Stryker Corporation · US

Inventors

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

Key dates

Filing date	Oct 5, 2011
Grant date	Sep 3, 2013
Priority date	—
Expiry date	Oct 5, 2031

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.