Surgery – Instruments – Surgical mesh – connector – clip – clamp or band
Patent
1996-05-30
1998-03-10
Buiz, Michael
Surgery
Instruments
Surgical mesh, connector, clip, clamp or band
606148, A61B 1708
Patent
active
057255393
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a surgical instrument used to clamp (ligature) a vessel, hollow organ or similar part of the body by means of a thread or rein, particularly in minimum invasive surgery.
BACKGROUND OF THE INVENTION
When applying a ligature, i.e. tying off vessels and the like, a so-called rein in the form of a thread, a plastic hose or a rubber thread is used for wrapping round the vessel. This rein is looped around the vessel to be ligated and then knotted.
There is furthermore the possibility of using haemostatic forceps for ligating, but they can be used only for a short period as they are in the way in the operating area.
While a ligature is comparatively simple to apply if the abdomen is open, considerable problems arise if the abdomen is closed and instruments are introduced by way of trocar sleeves, because the room for movement is very restricted.
As a result, it is very time-consuming to apply the ligature. A further drawback is that the tension of the ligature can no longer be altered after knotting.
A ligature system usable in conjunction with trocars is known from WO 90/06725. It has a thread which can be drawn with its end into a cavity and can be fixed there by retaining means, particularly by locking profiles. For drawing in the end of the thread, a pulling element is provided which can be fed through the trocar sleeve. Using the pulling element, the thread end can be grasped and the loop can be drawn tight. Slackening of the ligature is not possible in this instance either.
When ligating a blood vessel or the like, it is therefore not possible by slackening the ligature to check whether, for example, a suture is tight. Hence neither is temporary blood circulation or temporary perfusion of an organ possible in a simple manner. Therefore such cases necessitate that in a complicated way the first ligature be severed and then if necessary a new ligature be applied again.
SUMMARY OF THE INVENTION
The object underlying the present invention is to provide an auxiliary surgical instrument of the kind mentioned at the outset, with the aid of which a ligature can be applied in a significantly simpler fashion and in a short space of time. This is to be possible particularly also in minimum invasive surgery and when operating through trocar sleeves or the like. In addition, it is possible for the ligature to be temporarily loosened and then tightened again.
To accomplish this object it is proposed according to the invention particularly that the instrument has a lock assembly with a thread holder and a shaft-like lock assembly holder that can be coupled with the lock assembly, and that the lock assembly holder has actuating members for opening and closing the lock assembly thread holder.
Using this instrument, a ligature can be carded out in a simple manner by putting the lock assembly with the aid of the lock assembly holder at the vessel to be ligated and by the lock assembly there clampingly holding the thread looped round the vessel. The lock assembly holder can then be removed so as not to be in the way in the operating area. By the same token, the lock assembly holder can also be coupled with the lock assembly again for removing or loosening the ligature. Using this instrument, the ligature can also be applied as well as possibly removed particularly quickly; a factor of especial significance for a number of operations. It is furthermore advantageous that the handling is possible without any difficulty, even in very confined conditions.
Suitably, the actuating members of the lock assembly holder at the same time compose coupling elements for connecting to the lock assembly. This contributes towards simple handling of the instrument. If the lock assembly holder is coupled with the lock assembly, the thread holder is simultaneously held in the open position. During uncoupling, the thread holder automatically assumes the clamping position and then holds the intermediate end of the rein fast. Additional actuation for clamping or releasing the end of the rein is n
REFERENCES:
patent: 5207694 (1993-05-01), Broome
Buiz Michael
Klinikum Der Albert-Ludwigs-Universitat Freiburg
Truong Kevin
LandOfFree
Surgical instrument used to clamp a vessel or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surgical instrument used to clamp a vessel or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical instrument used to clamp a vessel or the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-135081