FR2767470A1

FR2767470A1 - Aspiration cannula, for use in dentistry

Info

Publication number: FR2767470A1
Application number: FR9710561A
Authority: FR
Inventors: Pierre Conduche
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-08-21
Filing date: 1997-08-21
Publication date: 1999-02-26

Abstract

The tip, attached by a friction fit to the end of a tube, has a tubular section (1) with a whistle outlet (4) in a cavity forming a nozzle (2). Preferred features: The cavity has a central recess (3) in its reinforced edge. The tip is made from a supple, bio-medical and sterilisable material.

Description

La présente invention concerne une CANULE D'ASPIRATION A USAGE
DENTAIRE.The present invention relates to a SUCTION CANNULA FOR USE
DENTAL.

La canule d'aspiration traditionnelle est constituée par un élément rigide en matière plastique ou en métal dont l'axe est légèrement coudé par le fabricant. The traditional suction cannula consists of a rigid plastic or metal element whose axis is slightly bent by the manufacturer.

Ces canules traditionnelles ont l'inconvénient ,vu leur rigidité d'être peu adaptables aux circonatances,difficiles à positionner par le praticien compte tenu de l'angle préétabli. These traditional cannulas have the disadvantage, given their rigidity of being poorly adaptable to the circumstances, difficult to position by the practitioner taking into account the preset angle.

D'autre part en raison de la rigidité de la canule ,une pression involontaire du praticien sur celle-ci ,est une occasion supplémentaire de gêne voire de douleur pour le patient.On the other hand because of the rigidity of the cannula, an involuntary pressure of the practitioner on it, is an additional occasion of discomfort or even pain for the patient.

La présente invention a pour objectif de remédier à ces inconvénients. The present invention aims to remedy these drawbacks.

En effet elle apporte un dispositif qui se caractérise par un ensemble de deux éléments amovibles, un embout qui se fixe par friction sur un tube de raccordement lui même connecté sur un tuyau d'aspiration au moyen d'un adaptateur. Indeed, it provides a device which is characterized by a set of two removable elements, a nozzle which is fixed by friction on a connection tube itself connected to a suction pipe by means of an adapter.

L'embout dont s'agit ,est constitué d'un matériau souple qui lui confère une souplesse particulière, lui permettant d'épouser les formes anatomiques de la région et de s'adapter à la surface de contact voire d'appui sans être traumatisant pour le patient.De ce fait, le praticien se trouve libéré de la préoccupation constante d'exercer par inadvertance, une pression excessive sur la canule .I1 peut dès lors, se consacrer totalement à ses soins. The tip in question, is made of a flexible material which gives it a particular flexibility, allowing it to marry the anatomical shapes of the region and to adapt to the contact surface or even support without being traumatic For this reason, the practitioner is freed from the constant concern of inadvertently exerting excessive pressure on the cannula. He can therefore devote himself entirely to his care.

Le tube qui sert de support à cet embout est constitué d'un matériau plastique qui a l'avantage de pouvoir être coudé au gré du praticien selon l'angle désiré par simple réchauffement. The tube which supports this tip is made of a plastic material which has the advantage of being able to be bent at the discretion of the practitioner at the desired angle by simple heating.

L'invention est décrite en détail ci-après par référence aux dessins annexés dans lesquels:
- la figure 1 donne une vue de face de l'embout,
- la figure 2 est une coupe longitudinale de 1' embout,
- la figure 3 est une vue globale montrant le dispositif complet : embout plus
tube formant canule.The invention is described in detail below with reference to the accompanying drawings in which:
FIG. 1 gives a front view of the end piece,
FIG. 2 is a longitudinal section of the end piece,
- Figure 3 is an overall view showing the complete device: tip more
cannula tube.

En référence aux dessins la canule d'aspiration à usage dentaire,est du type comportant un embout (6) ajusté sur un tube de raccordement (7) L'embout est constitué d'une partie tubulaire(l) prolongée par un évasement progressif sous forme de pavillon (2) avec à son
sommet une échancrure centrale (3) dont le dessin est comparable à celui d'un coeur stylisé.With reference to the drawings, the suction cannula for dental use is of the type comprising a nozzle (6) adjusted on a connection tube (7) The nozzle consists of a tubular part (l) extended by a progressive flaring under pavilion shape (2) with sound
top a central notch (3) whose design is comparable to that of a stylized heart.

Cette partie tubulaire (1) dans le prolongement du tube de raccordement (7) se termine en
sifflet (4) et s'estompe ensuite progressivement dans cet évasement dont l'épaisseur
présente latéralement un renforcement sur son pourtour extérieur (5) .Ce renforcement (5)
permet notamment quelque soit la pression exercée par le praticien de maintenir l'ouverture
tubulaire en position constante de fonctionnement.This tubular part (1) in the extension of the connection tube (7) ends in
whistle (4) and then gradually fades in this flare whose thickness
laterally has a reinforcement on its outer periphery (5).
allows in particular whatever the pressure exerted by the practitioner to maintain the opening
tubular in constant operating position.

Le tube de raccordement(7) qui sert de support à cet embout (6) est constitué avec
un matériau malléable notamment plastique bio médical stérilisable ,de préférence d'un type
polysulfone qui présente les propriétés requises et notamment celle de pouvoir être coudé
à la demande par simple réchauffement .The connection tube (7) which serves as a support for this nozzle (6) is constituted with
a malleable material, in particular sterilizable bio medical plastic, preferably of a type
polysulfone which has the required properties and in particular that of being able to be bent
on demand by simple reheating.

Le matériau de l'embout (6) est un matériau souple bio médical stérilisable et
notamment un silicone bio médical. The material of the end piece (6) is a flexible bio-medical sterilizable material and
including a medical bio silicone.

Claims

1-Suction cannula for dental use of the type comprising an end fitting adjusted to a connection tube, characterized in that its end piece (6) comprises a tubular part (1) which, in the extension of the connection tube (7) forms a whistle outlet (4) which fades into a flare constituting a pavilion (2).

2-cannula according to claim l, characterized in that the flag-shaped flare (2) has at its top a central notch (3).

3-cannula according to claim 1 or 2 characterized in that the bell-shaped flare (2) has laterally a reinforcement at its outer periphery.

cannula according to any one of claims 1 to 3 characterized in that the

tubular base of the nozzle (6) is frictionally fixed to the connection tube (7).

5-cannula according to any one of claims 1 to 4 characterized in that its connection tube (7) is made of malleable material allowing it to be bent at the option of the practitioner by simple heating.

6-cannula according to claim 5 characterized in that the material of the connection tube (7) is a plastic of the polysulfone type.

7-cannula according to any one of claims 1 to 6 characterized in that the material of the nozzle is a flexible bio-medical sterilizable material.

8-cannula according to claim 7 characterized in that the material of the tip (6) is a bio medical silicone.