Title:
RADIALLY EXPANDABLE CANNULA SYSTEM
Document Type and Number:
Japanese Patent JP2023109781
Kind Code:
A
Abstract:
To provide a radially expandable trocar, port or cannula system for use in minimally invasive surgeries.SOLUTION: An expandable cannula device 100 creates a port access with an initial small internal diameter. The passage of the cannula device is defined by a plurality of elongate rigid members. A number of mechanisms are provided for expanding the passage of the cannula device, by moving the plurality of elongate rigid members towards a larger radial location, thereby creating a larger internal diameter for the port. The elongate rigid members can be prevented from unintended movement when the system is at the un-expanded state, during expansion and when it is expanded to the desired larger diameter. Example embodiments include methods of preventing gas loss from the tissue that would occur through the gaps created during expansion.SELECTED DRAWING: Figure 29
Inventors:
ZAID ATTO
SERAY CICEK
CHEVIS DILBERT
CATHERINE MACKENZIE CAMPBELL
AMAN LADAK
SERAY CICEK
CHEVIS DILBERT
CATHERINE MACKENZIE CAMPBELL
AMAN LADAK
Application Number:
JP2023075463A
Publication Date:
August 08, 2023
Filing Date:
May 01, 2023
Export Citation:
Assignee:
XPAN INC
International Classes:
A61B17/34; A61B17/02
Attorney, Agent or Firm:
Kita Aoyama International Patent Attorney Corporation
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