Endosurgical instrument with a radially movable end effector

Details Endosurgical instrument with a radially movable end effector Endosurgical instrument with a radially movable end effector

1995-05-08

1996-12-24

Buiz, Michael Powell

Surgery

Instruments

Cutting, puncturing or piercing

606167, A61B 1732

Patent

active

055869904

ABSTRACT:
An endosurgical cutting instrument includes a hollow tube having a distal end with a radial slot and an interior deflection surface, a push rod extending through the tube and having a proximally directed sickle blade coupled to its distal end, and a manual actuator coupled to the proximal ends of the tube and the push rod for imparting relative axial movement to the tube and push rod. The sickle blade is a curved member having a sharp concave edge and a dull convex edge and is coupled to the distal end of the push rod with its sharp concave edge facing the push rod. The blade is dimensioned such that it may be substantially completely contained within the tube. The push rod is oriented so that its distal end is free to move in a radial direction as it moves axially. Movement of the push rod against the deflection surface urges the push rod in a radial direction thereby causing the sickle blade to exit the tube through the radial slot. As the sickle blade is moved out of the tube, there is no cutting action since it is the dull convex edge of the blade which faces the tissue adjacent to the tube. Once the blade is deployed outside the tube, cutting is effected by capturing tissue in the space between the concave cutting edge of the blade and the exterior of the tube.

REFERENCES:
patent: 2668537 (1954-02-01), Kapp
patent: 4729374 (1988-03-01), Alfranca
patent: 4963147 (1990-10-01), Agee et al.
patent: 5053044 (1991-10-01), Mueller et al.
patent: 5069679 (1991-12-01), Taheri
patent: 5089000 (1992-02-01), Agee et al.
patent: 5112346 (1992-05-01), Hiltebrandt et al.
patent: 5152772 (1992-10-01), Sewell, Jr.
patent: 5282813 (1994-02-01), Redha
patent: 5403328 (1995-04-01), Shallman
patent: 5443475 (1995-08-01), Auerbach et al.

Affiliated with

Also associated with

Rating

Endosurgical instrument with a radially movable end effector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Endosurgical instrument with a radially movable end effector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endosurgical instrument with a radially movable end effector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1176075