Title:
自己シール性カニューレ
Document Type and Number:
Japanese Patent JP4777655
Kind Code:
B2
Abstract:
A cannula assembly (10) for performing a surgical procedure includes a cannula defining a longitudinal axis (a) and having a longitudinal passageway (29) extending therethrough, a seal for substantially sealing the longitudinal passageway within the cannula in the absence of an object being received through the passageway and an elongated membrane (30) disposed within the longitudinal passageway of the cannula. The elongated membrane is secured to the cannula at respective ends of the elongated membrane to define an angular space (38) between the elongated membrane and the cannula. The cannula has a throughhole (42) in communication with the annular space whereby, when the cannula is positioned within an insufflated body cavity, insufflation gases pass through the throughhole to expand the annular space to thereby cause the elongated membrane to form a seal about an object inserted therethrough.
Inventors:
Wenchel, Thomas
Application Number:
JP2004551893A
Publication Date:
September 21, 2011
Filing Date:
November 07, 2003
Export Citation:
Assignee:
Tyco Healthcare Group LP
International Classes:
A61B17/34; A61L29/00; A61L31/00
Domestic Patent References:
| JP2002209904A | 2002-07-30 |
Foreign References:
| WO2001052754A1 | 2001-07-26 | |||
| US6358266B1 | 2002-03-19 | |||
| US5871474A | 1999-02-16 |
Attorney, Agent or Firm:
Takeshi Oshio