RU198432U1 - Saliva suction nozzle - Google Patents

Abstract

The utility model relates to dentistry, namely to devices designed to remove saliva from the oral cavity. The technical result of the utility model is to minimize the possibility of clogging the openings of the saliva ejector. The specified technical result is achieved due to the fact that a nozzle for suction of saliva, containing a body with a tip in the form toothbrush, which has a longitudinal hole inside, on one side of which a connecting sleeve is located, and in the area of the toothbrush there is a hole for sucking saliva, characterized in that the hole for sucking saliva is located in the central part of the brush between its bristles, and in the upper part of the hole there is widening in the form of a funnel, and the inner longitudinal hole has a gradually increasing diameter towards the connecting sleeve.

Description

The utility model relates to dentistry, namely to devices designed to remove saliva from the oral cavity, and can be used to brush teeth for patients who are unable to perform the procedure on their own.

The salivary suction tip for protecting the tongue and mucous membrane of the cheek is known from the prior art [RF patent No. 2111135], containing two curved tubes of different lengths, which are connected in the form of a bifurcated main tube, the short part of which is bent at right angles and equipped with a pellet to protect the mucous membrane of the cheek and has two bends located in mutually perpendicular planes. The short part of the main tube is made with a hole for aspirating saliva, and both parts of the main tube end with cylinders of 2 mm in length having no internal openings with the same diameters as the main tube, and the holes for aspirating saliva are made in front of the cylinders on tubes with smaller, than the main tube, diameters.

The disadvantage of the analogue is that when it is used, it is possible for adhesion holes to stick saliva to the patient’s gums or cheeks, which completely overlaps the saliva ejector and delays the performance of medical procedures.

Known TIP FOR SALIVARY SUCTION [http://simbis.su/catalog/product/6752/nakonechniki-dlya-slyunootsosov-o/], comprising a housing with a longitudinal hole, on one side of which there is a connecting sleeve, and on the other side of the body a hole is made for suction of saliva, while around the hole for suction of saliva grooves are made, which form ribs around it, preventing the overlap of the hole when using it.

The disadvantage is the low productivity of the saliva ejector, which is due to the fact that the gaps between the ribs reduce the efficiency of the saliva ejector and do not allow the saliva suction hole to be brought close to its accumulation site.

The closest analogue is a saliva ejector in the form of a toothbrush, which is used to brush teeth for patients who are unable to perform the procedure on their own [http://sageproducts.com/product-oral-hygiene/] (publ.: 01/29/2016). The solution is chosen for the prototype. The disadvantage of the prototype is the presence of 2 holes for the absorption of saliva located on the end and top of the toothbrush. In the case of direct contact of the end hole with the gum, it overlaps and prevent the absorption of saliva, and no suction occurs through the upper hole. And if there is a tilt of the brush and simultaneous overlapping of the end and upper holes, the suction tightens the gum, which creates a plug and unpleasant, painful effects in the patient. In addition, at such moments, there is a high probability of clogging of the hole with mucus, pieces of food and blood clots. Therefore, when brushing your teeth, the operator must monitor the position of the brush.

The objective of the utility model is to eliminate the disadvantages of the prototype.

The technical result of the utility model is to minimize the possibility of clogging the holes of the saliva ejector.

The specified technical result is achieved due to the fact that the nozzle for aspirating saliva, comprising a body with a tip in the form of a toothbrush, having a longitudinal hole inside, on one side of which there is a connecting sleeve, and in the zone of the toothbrush there is a hole for sucking saliva, characterized in that the saliva suction hole is located in the central part of the brush between its bristles, and the funnel-shaped broadening is made in the upper part of the hole, and the inner longitudinal hole has a gradually increasing diameter towards the connecting sleeve.

In particular, a hollow cylindrical protrusion of a smaller diameter is made at the base of the connecting sleeve.

In particular, the connecting sleeve, the longitudinal hole and the saliva suction hole are communicated and form a common cavity.

A brief description of the drawings.

In FIG. 1 is a side view of a saliva aspirator (sectional view).

In FIG. 2 is a top view of a saliva aspirator.

In FIG. 3 shows a general view of a nozzle for aspirating saliva.

In the figures: 1 - body, 2 - a longitudinal hole, 3 - a connecting sleeve, 4 - the base of the sleeve, 5 - a cylindrical protrusion, 6 - hole for suction of saliva, 7 - head, 8 - bristles, 9 - hole for suction of saliva.

Utility Model Implementation

The nozzle for aspirating saliva contains a housing 1 with a longitudinal hole 2, on one side of the housing 1 a connecting sleeve 3 is made (see Fig. 1, Fig. 2). A cylindrical protrusion 5 is located at the base 4 of the connecting sleeve 3. On the other hand, the housing 1 is connected to a head 7 in which a hole is made for sucking saliva 9, and a bristle 8 is located on the surface of the head 7 around the hole 6.

What is new is that the hole for sucking saliva 9 is located in the central part of the brush between its bristles 8, and in the upper part of the hole 9 there is a broadening 6 in the form of a funnel.

In addition, the inner longitudinal hole 2 has a gradually increasing diameter towards the connecting sleeve 3.

The broadening 6 in the shape of a funnel and the gradually increasing diameter of the longitudinal hole 2 towards the connecting sleeve 3 create a maximum flow rate in the channel break zone according to Bernoulli law, since the changing diameter creates an increase in the fluid flow rate precisely in the channel break zone, which minimizes the possibility of clogging the saliva ejector in the fracture zone of the channel, where clogging is most likely.

Inside the head 7, the saliva suction opening 9 can directly communicate with the longitudinal hole 2. The combination of the hole 9, the longitudinal hole 2 and the sleeve 3 forms a common nozzle cavity.

The nozzle for aspirating saliva is used as follows.

Initially (see Figs. 1-3), a vacuum source tube (not shown in the drawings) is inserted into the connecting sleeve 3 so that the specified tube is located in the gap between the inner surface of the sleeve 3, the base of the sleeve 4 and the cylindrical protrusion 5.

After that, the source of vacuum is turned on and the head 7 is inserted into the oral cavity, the bristle 8 is brought to the place of accumulation of saliva and slightly pressed onto the body 1, while the bristle 8 is bent, the hole 9 approaches the place of accumulation of saliva and saliva is sucked into it, which passes through the longitudinal hole 2, the sleeve 3 and enters the tube of the vacuum source.

The exclusion of the possibility of clogging the holes of the saliva ejector, as well as the elimination of painful effects in patients when brushing teeth, is achieved by the fact that the hole for sucking saliva 9 is located in the central part of the brush between its bristles 8, and in the upper part of the hole 9 there is a broadening 6 in the form of a funnel.

This is explained by the following reasons.

The location of the bristles 8 around the hole for suctioning saliva 9 with a broadening 6 in the form of a funnel prevents the suction of the specified hole to the gum or cheek of the patient. Even if the bristles 8 are pressed during the cleaning process and the suction hole 9 directly touches the gums, due to the presence of a funnel 6, which has a wider diameter than the diameter of the hole 9, suction to the gum is practically excluded even in this case. Therefore, pain from sticking to the gums is eliminated or reduced to a minimum.

Also, the presence in the upper part of the opening 9 of broadening in the form of a funnel 6 forms a turbulent flow (vortex) during the suction process, which prevents the suction along the channel with the longitudinal hole 2 in a continuous flow, which can penetrate food pieces and viscous salivary masses. The turbulent flow generated due to the presence of broadening in the form of a funnel 6 allows more efficiently pushing pieces of food and viscous salivary masses along the channel of the longitudinal opening 2, which are sucked along it in a spiral, pressing against the walls of the channel. This allows for more efficient suction and to prevent clogging of the channel of the longitudinal hole 2.

In addition, due to the fact that around the hole for the suction of saliva 9 there is a bristle 8, most of the pieces of food and clots of saliva, blood, remain on the bristles 8 and do not fall into the saliva ejector, or fall into it already crushed into smaller fractions. These fines are more easily absorbed and do not clog the suction channel. Thus, there is no need on the part of the operator brushing the teeth of the patient to monitor the particular position of the nozzle with a brush inside the oral cavity. No matter how he places the brush, this will not create painful effects for the patient and the saliva ejector channel will not clog.

Due to the fact that the device uses only one hole 9 leading to the saliva ejector channel, there is no need for a second air outlet. This simplifies the design of the device.

The saliva suction nozzle can be used as a toothbrush for hygienic cleaning of the oral cavity of paralyzed people who cannot independently spit saliva along with the remains of toothpaste.

In this case, the nozzle is used as follows.

After attaching the discharge source tube 3 to the sleeve 3, a toothpaste is applied to the bristles 8, after which hygienic cleaning of the teeth, gums, cheeks and tongue of the patient is carried out with bristles 8.

After cleaning, the source of discharge is switched on and the accumulated saliva and residues of toothpaste are sucked out of the oral cavity.

Claims (3)

1. A nozzle for suctioning saliva, comprising a body with a tip in the form of a toothbrush, having a longitudinal hole inside, on one side of which there is a connecting sleeve, and in the area of the toothbrush there is a hole for sucking saliva, characterized in that the hole for sucking saliva is located in the central part of the brush between its bristles, and in the upper part of the hole a broadening in the form of a funnel is made, and the inner longitudinal hole has an increasing diameter towards the connecting sleeve. 2. The nozzle according to claim 1, characterized in that a hollow cylindrical protrusion is made at the base of the connecting sleeve. 3. The nozzle according to claim 1, characterized in that the connecting sleeve, the longitudinal hole and the hole for aspirating saliva are communicated and form a common cavity.

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