Coaxial blunt dilator and endoscopic cannula insertion system

Details Coaxial blunt dilator and endoscopic cannula insertion system Coaxial blunt dilator and endoscopic cannula insertion system

1996-02-27

1997-11-11

Rimell, Sam

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604164, A61M 518

Patent

active

056858566

ABSTRACT:
A coaxial blunt dilator insertion system for insertion of laparoscopic cannulas which uses a coaxial needle guide and blunt dilator instead of a sharp trocar to insert primary and secondary laparoscopic cannulas. A single blunt dilator allows the insertion path to be expanded from the diameter of a needle to a size capable of accepting a digital cannula. Alternative embodiments allow multiple dilators to be used in sequence to expand the opening in the body cavity for a larger sized cannula. The size of the insertion path can thus accommodate both narrow devices such as suture graspers and optical devices up to and including objects as large as a surgeons finger. Open laparoscopy insertion of the first cannula may be performed under improved visual guidance utilizing a Laparoscopic Optically Directed Insertion System ("LODIS"). A blunt optical sleeve guide of appropriate length is fitted over the micro laparoscope and bluntly opens the peritoneum. The sleeve guide is backloaded with a blunt dilator and a laparoscopic cannula. Alternatively, the micro laparoscope may be used to visually control a sharpened double action grasper to enter the peritoneal cavity. When using a primary closed laparoscopy technique, the micro laparoscope allows verification of the correct position of the needle and the outer sleeve prior to creating the pneumoperitoneum, thus enhancing safety.

REFERENCES:
patent: 2705949 (1955-08-01), Silverman
patent: 5232442 (1993-08-01), Johnson
patent: 5250036 (1993-10-01), Farivar
patent: 5273545 (1993-12-01), Hunt
patent: 5370623 (1994-12-01), Kreamer

Affiliated with

Also associated with

Rating

Coaxial blunt dilator and endoscopic cannula insertion system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coaxial blunt dilator and endoscopic cannula insertion system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coaxial blunt dilator and endoscopic cannula insertion system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1225257