Dentistry – Apparatus – Having suction orifice
Patent
1982-05-04
1983-11-29
Peshock, Robert
Dentistry
Apparatus
Having suction orifice
A61C 1704
Patent
active
044178743
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to suction devices of the kind disclosed in the preamble to the following main claim and which are used as dental aspirators or saliva suckers, the latter being used in surgical operations.
The invention primarily relates to an improved dental aspirator.
With dental aspirators it is a desire to dry out the area in question as effectively as possible, which signifies that the suction orifices of the aspirator must be as close as possible to the mucous membrane without being clogged by it.
At the present time, two main types of dental aspirators are used in practice, both comprising a plastic tube with an interiorly situated metal wire making it possible to bend the tube to a desired shape. In one type, a part of the tube is bent into a spiral running out into a bent portion, which in turn merges into a wishbone-shaped portion. The bent portion is intended to be pressed down with its underside against the mucous membrane, there being a plurality of suction orifices made in the upper side of the tube portion. Since the suction orifices open out at the surface of the cylindrical tube, there is great risk that they can be clogged by the mucous membrane, if the dental aspirator is not placed in the right way in the oral cavity. It is thus necessary now and again to check that the aspirator has not altered its position so that the suction orifices have become closed off. Another drawback with the known dental aspirator is that its end at the termination of the spiral is open, and this results in sucking-in a quite substantial quantity of leakage air, which reduces the suction ability of the aspirator at the suction orifices. Furthermore, the known dental aspirator is relatively expensive, and with regard to the fact that it is only used once, the cost per year for dental aspirators of this type for a dental practice is rather high.
A further drawback with the known dental aspirator is that it offers relatively severe resistance to bending, which can be troublesome when it is to be formed to suit the current area in the oral cavity. Since its shape is maintained with the aid of the bent metal wire, the aspirator will not adjust by itself to the oral cavity, since the bending resistance is too great for such adjustment, which results in that the aspirator can sometimes feel uncomfortable for the patient if it does not fit sufficiently well and therefore presses against certain spots in the oral cavity.
The other type of the most usual dental aspirators also comprises a flexible plastic tube with an interiorly situated metal wire. In this case there are no suction orifices in the tube. The end of the tube is instead provided with a suction head which has slit-shaped suction orifices. Since the slits are relatively long in the axial direction, it is sometimes necessary to press the suction head downwards relatively heavily against the mucous membrane so that as much as possible of the suction orifices will be placed under the saliva level in the oral cavity. In some cases, this downward pressure can be painful for the patient. This aspirator also has the drawback that the slits open out at the suction head surface and can easily be clogged by the ambient mucous membrane.
The object of the present invention is therefore to provide a dental aspirator the suction orifices of which are disposed such that they are practically completely prevented from being clogged by the mucous membrane.
This is achieved with a dental aspirator which, in accordance with the invention, has the characterizing features defined in the following claims.
The dental aspirator in accordance with the invention comprises a plastic tube which, at least at one portion along its length, is provided with a plurality of mutually separated ridges or similar protuberances, preferably extending around the circumference of the tube while forming grooves or depressions between the ridges. At least one such portion of the tube is provided with a plurality of suction orifices therein, at least at the bottoms of the grooves, and d
REFERENCES:
patent: 3409224 (1968-11-01), Harp et al.
Andersson Bror A. E.
Mo Arne B.
LandOfFree
Suction device such as a dental aspirator or sucker does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suction device such as a dental aspirator or sucker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suction device such as a dental aspirator or sucker will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-606062