Surgery – Instruments – Internal pressure applicator
Patent
1995-03-07
1997-09-02
Buiz, Michael
Surgery
Instruments
Internal pressure applicator
604105, 600210, A61B 1702
Patent
active
056626762
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an instrument set for laparoscopic hysterectomy, including laparoscope-assisted sub-total and total hysterectomy, and to a uterine rotator and an artery forceps therefor.
Hysterectomy is one of the surgical operations most frequently performed on women. On average the uterus is removed in one of three women.
SUMMARY OF THE INVENTION
Abdominal hysterectomy is generally performed in particular when the uterine volume is large, when extensive pelvic adhesions are present or expected, and when other pathology such as ovarian cysts, extensive endometriosis or cancer are present.
Vaginal hysterectomy has the advantage relative to abdominal hysterectomy of a lower post-operative morbidity and the absence of abdominal scars.
Endoscopic Surgery has been employed more and more in recent years due to technical developments in the area of video-endoscopy and in the area of lasers as bloodless, precision cutting instruments in addition to persufflation techniques, such as described in EP-A-0 350 499.
Laparoscopic hysterectomy has already been described by Reich et al., J. Gynaecol. Surg., 1989, 5, p. 213-216.
A frequently occurring problem, especially with a larger uterus, is that during the operation the uterus rotates spontaneously whereby the operation becomes more difficult. Problems can occur particularly at the most crucial moment of the operation, when the uterine artery is ligated. Moreover it can be necessary in the case of a myomatous uterus to rotate the uterus in order to expose the broad ligament and the uterine artery.
In order to facilitate laparoscopic vaginal hysterectomy, to shorten the operation time and to increase the percentage of successful operative procedures the present invention provides an instrument set. The instrument set for laparoscopic vaginal hysterectomy according to the invention is characterized in that it comprises a uterine rotator comprising a rod with a uterine end for insertion into the uterus and a control end, and with at least one wing movable in and out of the uterine end which in the folded-out position makes contact with the inner wall of the uterus and which connected via coupling means to a control member located at the control end. It is thus possible with the uterine rotator to fix the uterus and rotate it in controlled manner whereby the necessary surgical procedures viewed with a laparoscope can be optimally performed.
Fixed and controlled rotation of the uterus is further improved if more preferably the rod is provided with two wings which in that case are preferably movable diametrically relative to each other and in and out of the uterine end of the rod.
In order to provide a uterine rotator combining good fixed and controlled rotation of the uterus with a construction which can be prepared well in pro-operative instrument treatments such as sterilization and the like, each wing preferably comprises two wing portions connected for mutual rotation, whereof a first wing portion is rotatably connected to a rod tip and whereof the second wing portion is connected to the coupling means. When more preferably in folded-in position the first wing portions are enclosed by the second wing portions the advantage is achieved that a smaller displacement of the coupling means is necessary for folding out the wings.
If in further preference in folded-out position an angle smaller than 180.degree. and greater than 90.degree. is enclosed between both adjoining second wing portions, both second wing portions lie in reflex position inside both first wing portions in the folded-out position, thereby the second wing portions or their coupling to the coupling means do not touch the fundus of the uterus, whereby damage or perforation is avoided.
Optimal insertion of the uterine rotator into the uterus is obtained when in a folded-in position the wing more preferably lies enveloped within a rod. It is recommended for this purpose that the rod is provided with a recess for receiving a folded-in win
REFERENCES:
patent: 3857395 (1974-12-01), Johnson et al.
patent: 5113846 (1992-05-01), Hiltebrandt et al.
patent: 5339803 (1994-08-01), Mayzels et al.
patent: 5351679 (1994-10-01), Mayzels et al.
Reich et al., J. Gynaecol. Surg., 1989. 3 pages.
Buiz Michael
K.U. Leuven Research & Development
Lewis William
LandOfFree
Instrument set for laparoscopic hysterectomy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Instrument set for laparoscopic hysterectomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrument set for laparoscopic hysterectomy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-304277