Surgery – Specula – Retractor
Patent
1998-08-03
1999-09-14
Smith, Jeffrey A.
Surgery
Specula
Retractor
600235, 600245, 606119, A61B 1700
Patent
active
059514655
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical field
The present invention relates to a device for carrying out manipulations in the human body, in particular in the uterus.
2. State of the Art
Devices according to the generic part of claim 1 are, by way of illustration, manufactured and sold by Karl Storz GmbH & Co. These known devices have a hook element, the hook of which is connected to grip ends provided at the proximal end of the device via a rod, which is guided in a shaft.
By expanding and contracting the hooks, manipulations can be carried out in the human body, in particular in the uterus.
The known devices or instruments have the drawback that in some applications it is difficult to carry out the desired manipulation, because the tissue sections to be manipulated with the hook(s) give way sideways.
DESCRIPTION OF THE INVENTION
The object of the present invention is to further improve a generic device for carrying out manipulations in the human body, in particular in the uterus, in such a manner that the desired manipulation can be carried out in instances in which the to-be-manipulated tissue sections give way sideways.
An invented solution to this object is disclosed.
An element of the present invention is to provide a glide element guided in a sliding manner on a shaft in the longitudinal direction thereof and at the distal end of which an approximately bell-shaped expansion is provided. By sliding this glide element, the to-be manipulated tissue sections can be manipulated together with the clapped open hook(s). In particular, with the glide element, the tissue can be "gripped" by interacting with the hook(s).
Further embodiments of the present invention are the subject matter of the disclosure.
It is particularly preferred if the glide element is provided with an illumination device with a light exit at the peripheral edge of the bell-shaped expansion, thereby permitting illuminating the to-be-manipulated section of tissue, if need be, in addition to an endoscope illumination. In particular, however, the position of the edge of the bell can be determined laparoscopically.
In one aspect of the invention, the expansion has approximately the shape of a hemisphere, has the advantage that the expansion cannot get caught in the tissue or in the corporal opening when removed or withdrawn.
Further disclosed is an especially ergonomically advantageous embodiment in which a drive unit is provided for the glide element which is provided with a hand wheel which moves a ball guided in a longitudinal groove over a screwthread-shaped groove. Thus, in order to move the glide element in a longitudinal direction, the operating person only has to turn his/her hand.
The hook element may be provided in an as such known manner with at least three, preferably four, hooks which, when the grip ends are open, are clapped shut and which are clapped open in the direction toward the distal end by closing the grips ends by the rod acting like a drawrod.
Further embodiments simplify cleaning and sterilizing the invented device. In particular, the hook element, the shaft and the grip may be connected in a known manner, such as described in EP-A-0 688 187.
BRIEF DESCRIPTION OF THE DRAWING
The present invention is made more apparent in the following using the accompanying drawing, in which:
FIG. 1 shows a detailed representation of a uterus manipulator designed according to the present invention,
FIG. 2 shows the assembled uterus manipulator with a closed hook element,
FIG. 3a shows the uterus manipulator depicted in FIG. 2 with an open hook element, and
FIG. 3b shows an exploded view of the hook element with four hooks.
DESCRIPTION OF A PREFERRED EMBODIMENT
FIG. 1 shows the essential components of an invented device for carrying out manipulations in the human body, which particularly functions as a uterus manipulator. The device is provided with a hook unit 1, which bears at its distal end a hook element 11, which will be described in more detail in the following paragraphs. Hook element 11 is connected via an (actuating) rod 12 to the
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patent: 5199419 (1993-04-01), Remiszewski et al.
patent: 5235966 (1993-08-01), Jamner
patent: 5271385 (1993-12-01), Bailey
patent: 5353784 (1994-10-01), Nady-Mohamed
patent: 5522839 (1996-06-01), Pilling
Dittrich Horst
Schiff Norman
Karl Storz GmbH & Co.
Smith Jeffrey A.
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