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De Grandi, P. MD; Chardonnens, E. MD; Gerber, S. MD

Instruments & Methods

Background Cutting the cervix, morcellation, and extraction of the uterus and myomata remain major problems in endoscopic surgery. We developed an efficient, safe, reusable, and inexpensive instrument to cut the cervix and morcellate the uterus and myomata: the morcellator knife.

Instrument The morcellator knife is a classic lancet with an interchangeable blade, transformed into an endoscopic instrument that can be inserted easily through a 10-mm-diameter trocar. The blade has an automatic retraction system and is set in the standby position, ensuring security. Cutting the cervix and uterine or myoma fragmentation are easy. The mass to be cut is held between two grasping forceps for easy cutting with the blade, under permanent visual control. After morcellation, extraction of the masses is performed through a posterior culdotomy.

Experience We have used this morcellator knife in 54 subtotal hysterectomies and 16 myomectomies. There were no complications during the procedures. Morcellation lasted 3–14 minutes and involved the use of an average of two to three blades.

Conclusion The morcellator knife is a simple, safe, reusable, and inexpensive instrument with a low maintenance cost.

A new, safe, simple, and inexpensive instrument can be used to cut the cervix during endoscopic supracervical hysterectomy and morcellation of the uterus or leiomyomata.

Department of Gynecology and Obstetrics, University Hospital Center, Vaud, Lausanne, Switzerland.

Address reprint requests to: Pierre De Grandi, MD, Department of Gynecology and Obstetrics, University Hospital Center, Vaud 1011 Lausanne, Switzerland. E-mail:

Received June 9, 1999. Received in revised form October 21, 1999. Accepted November 15, 1999.

© 2000 The American College of Obstetricians and Gynecologists