Application device for applying a composite substance to a site

• US 20020170833A1
• Filed: 05/06/2002
• Published: 11/21/2002
• Est. Priority Date: 05/21/2001
• Status: Active Grant

• Current Assignee: Ivoclar Vivadent AG
• Original Assignee: Ivoclar Vivadent AG
• Inventors: Muller, Frank
• Granted Patent: US 7,083,350 B2
• Time in Patent Office: Days
• US Class Current: 206/219
• CPC Class Codes: A61C 5/60 Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
• CPC Class Codes: B65D 77/245 Utensils for removing the contents from the package, e.g. spoons, forks, spatulas B65D77/28 takes precedence
• CPC Class Codes: B65D 81/3255 Containers provided with a piston or a movable bottom, and permitting admixture within the container

Abstract

An application device for applying a composite substance onto a site is provided that operably applies a composite substance formed of at least two reaction substances which react with one another. The application device includes a receptacle for receiving a fluid. The receptacle has a support element having a working end on which a reaction substance is supported and the receptacle is operable to guide the one reaction substance into reaction contact with another reaction substance to thereby effect the formation of the composite substance. The receptacle is configured with respect to another receptacle which receives therein a reaction substance such that the receptacle comprises either a shaft portion of a grip or the grip itself of the other receptacle adapted to be gripped by a user in deploying the other receptacle.

Claims

1. An application device for applying a composite substance onto a site, the composite substance being formed of at least two reaction substances which react with one another, comprising:

a receptacle for receiving a fluid, the receptacle having a support element, the support element having a working end onto which a reaction substance is wetted, the receptacle being operable to guide the one reaction substance into reaction contact with another reaction substance enclosed in another receptacle to thereby effect the formation of the composite substance, and the receptacle being configured with respect to the other receptacle such that the receptacle comprises at least one of a shaft portion and a grip surface of a grip of the other receptacle adapted to be gripped by a user in deploying the other receptacle.

2. An application device according to claim 1, and further comprising a plurality of receptacles insertable into one another, whereby each receptacle includes a support element which extends into the neighboring receptacle.

3. An application device according to claim 1, and further comprising a piston which is insertable under pressure into the receptacle, whereby, in the inserted condition of the piston, a fluid connection is established between the reaction substance disposed interiorly of the piston and the interior of the receptacle.

4. An application device according to claim 1, wherein the receptacle is sealed off relative to a shaft of the support element.

5. An application device according to claim 1, wherein a shaft of the support element includes a recess which corresponds to the interior oversurface of the receptacle inserted thereover.

6. An application device according to claim 1, wherein the receptacle is cylindrical and has a length to diameter relationship of at least 1:

1 and, especially, approximately 3;

1.

7. An application device according to claim 1, wherein the receptacle guides a piston, which has a hollow interior dimensioned for receiving the support element inserted therein.

8. An application device according to claim 1, and further comprising a piston which is slidable within the receptacle and an annular projection which seals against the base of the piston in the non-activated position of the piston and, in connection with a sliding movement of the piston from its non-activated position into its activated position, a gap, especially, an annular gap, is formed which permits the spillover of fluids into the interior space of the piston.

9. An application device according to claim 1, and further comprising an outer receptacle into which the receptacle is inserted and having a base, the outer receptacle having an inner space sealed off by the receptacle base of the outer receptacle and receiving a further fluid, and the receptacle base having a further support element.

10. An application device according to claim 1, wherein a plurality of receptacles are disposed in inserted condition with one another and are enclosed in a tube which promotes stiffening of the inserted receptacle arrangement.

11. An application device according to claim 10, wherein the receptacles are insertable in one another and are of uniform size within the tube, a first receptacle of the arrangement is insertable into a last receptacle and the arrangement of the receptacles which are in inserted condition with one another is displaceable relative to the tube while being guided therethrough.