Patent · US Active

Cannula for receiving surgical instruments

US8540746B2 · kind B2 · utility

4Cited by

365References

10Claims

0Family size

Assignee

Zimmer Spine, Inc. · US

Inventors

Thomas W. Davison · Naples, US
Timothy E. Taylor · Hoover, US
Adam Sher · Attleboro, US

Key dates

Filing date	Sep 14, 2012
Grant date	Sep 24, 2013
Priority date	—
Expiry date	Sep 14, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/0046
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A cannula (10) receives surgical instruments (120) for performing a surgical procedure on a body (130). The cannula (10) comprises a tube structure (12) defining a passage (16) through which the surgical instruments (120) are inserted into the body (130). The tube structure (12) has a proximal end (20) and a distal end (62). The tube structure (12) includes an expandable portion (40) for enabling an increase in the cross-sectional area of the passage (16) at the distal end (62). The expandable portion (40) of the tube structure (12), when expanded, has a conical configuration.

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