Two-component mixing capsule, in particular for dental purposes

Patent metadata

Field	Value
Publication number	US-11744674-B2
Application number	US-201816616721-A
Country	US
Kind code	B2
Filing date	May 24, 2018
Priority date	May 30, 2017
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

The disclosure relates to a two-component mixing capsule for intake and for mixing of two compositions with a capsule housing having a discharge spout at its front end, wherein the mixing capsule comprises a first mixing chamber and a second mixing chamber, wherein the two mixing chambers may be separated from each other for storage or for transport, by the first mixing chamber being rotatable into a first position in which the first mixing chamber is separated from mixing chamber, by a rotatably mounted handhold element, the rotational axis of which is approximately perpendicularly arranged to the longitudinal axis of the mixing capsule. The two mixing chambers form a common mixing chamber by rotating the first mixing chamber into a second position in which the central axes of the first and second mixing chamber are substantially coaxially arranged, wherein the composition may be discharged after mixing by attaching a squeezing piston.

First claim

The invention claimed is:

1. A two-component mixing capsule for intake and for mixing of two compositions with a capsule housing having a discharge opening at its front end,
wherein
the mixing capsule comprises a rotary element rotatably mounted in the capsule housing, a rotational axis of the rotary element being approximately perpendicularly arranged to a longitudinal axis of the mixing capsule, and a rotatably mounted first mixing chamber being assigned to the rotary element in the capsule housing, and a second mixing chamber being arranged in the capsule housing, a sealing piston being arranged in the capsule housing at a back end of the capsule housing, and the sealing piston being passable through the first mixing chamber and the second mixing chamber along the longitudinal axis of the mixing capsule when the first mixing chamber is rotated to be coaxially oriented with the longitudinal axis of the mixing capsule.

2. The mixing capsule according to claim 1 , wherein
the capsule housing is a one-piece integral component.

3. The mixing capsule according to claim 1 , wherein
a) the capsule housing has an opening to receive the rotary element, an opening to receive the sealing piston and a discharge opening, optionally the capsule housing otherwise has a continuously closed housing wall, or
b) the capsule housing of the mixing capsule has a continuously closed housing wall on the housing wall of the capsule housing opposite the rotary element rotatably arranged in an opening of the housing wall of the capsule housing.

4. The mixing capsule according to claim 1 , wherein
a) a separate handhold element is attachable to the rotary element or a separate handhold element or a squeezing piston is insertable into the rotary element, or b) the rotary element additionally has an integral handhold element, or c) the rotary element has a groove.

5. The mixing capsule according to claim 1 , wherein
the first mixing chamber is arranged at the rotary element rotatably mounted in the capsule housing, and optionally the rotatably mounted rotary element and the first mixing chamber form a one-piece component.

6. The mixing capsule according to claim 1 , wherein the diameter of the movable sealing piston is reducible.

7. The mixing capsule according to claim 1 , wherein a guiding adapter, in which a movable squeezing piston is arranged, is attachable to the back end of the housing of the mixing capsule.

8. The mixing capsule according to claim 1 , wherein
a) the discharge opening is arranged at a discharge spout, and the discharge spout is an integral part of the capsule housing, or
b) the discharge opening is a discharge spout and is fastenable to the capsule housing.

9. The mixing capsule according to claim 1 , wherein the mixing capsule has a single rotary element rotatably mounted or rotatably arranged in the capsule housing.

10. The mixing capsule according to claim 1 , wherein
the first mixing chamber is arranged at the rotary element rotatably mounted in the capsule housing and the rotatably mounted rotary element and the first mixing chamber being in the form of a pipe section or a one-side closed cylindrical sleeve form an integral component.

11. The mixing capsule according to claim 10 , wherein
the pipe section connected to the rotatably mounted rotary element or the cylindrical one-side closed sleeve forms the first mixing chamber and a) the second mixing chamber is located in the front region in the capsule housing or b) the second mixing chamber is located in the back region in the capsule housing.

12. The mixing capsule according to claim 10 , wherein
the pipe section connected to the rotatably mounted rotary element forms the first mixing chamber and the second mixing chamber is located in the front region in the capsule housing,
the mixing capsule being a) in a first position (storage) when the longitudinal axis of the pipe section is twisted by approximately 90° to the longitudinal axis of the capsule housing, so that the first mixing chamber and the second mixing chamber are separated from each other, or
the mixing capsule being
b) in a second position when the longitudinal axis of the pipe section is substantially coaxial with the longitudinal axis of the capsule housing, so that the first mixing chamber and the second mixing chamber form a common mixing chamber, or
the mixing capsule in position b) being in a discharge position c) when a guiding adapter with movable squeezing piston is arranged at the back end of the capsule housing, the movable squeezing piston and a sealing piston being displaceable through the common mixing chamber in the direction toward the front end of the capsule housing or in the direction toward the back region.

13. The mixing capsule according to claim 10 , wherein
the sealing piston is passable through the first mixing chamber being in the form of a pipe section and the second mixing chamber along the longitudinal axis of the mixing capsule when the mixing chamber in the form of a pipe section is coaxially oriented with the longitudinal axis of the mixing capsule.

14. A method for mixing at least two compositions A and B into a composition C in a mixing capsule according to claim 1 , comprising the steps of (i) transferring the mixing capsule from a) a first position into b) a second position by a pipe section being rotated in a direction toward the longitudinal axis of the capsule housing, by rotating the rotary element with the pipe section, in which the mixing chamber and composition B are located, about its rotational axis so that the first mixing chamber comprising composition B and the second mixing chamber in the capsule housing comprising composition A form a common mixing chamber,
(ii) mixing compositions A and B with each other, by the mixing capsule being moved, and
(iii) obtaining composition C.

15. The method according to claim 14 , wherein
(iv) discharging of composition C from the mixing capsule is made, with the steps of
(iv.1) fastening a guiding adapter with movable squeezing piston at the back end of the capsule housing,
(iv.2) pushing the squeezing piston into the capsule housing of the mixing capsule along with the sealing piston, so that the sealing piston is pushed through the common mixing chamber by the squeezing piston.

16. The method according to claim 14 , wherein
the mixing capsule a) is in a first position when the longitudinal axis of the pipe section is twisted by approximately 90° to the longitudinal axis of the capsule housing, so that the first mixing chamber and the second mixing chamber are separated from each other, or the mixing capsule being
b) in a second position when the longitudinal axis of the pipe section is coaxial with the longitudinal axis of the capsule housing so that the first mixing chamber and the second mixing chamber form a common mixing chamber comprising compositions (A and B), or the mixing capsule in position b) being also in a discharge position c) when the guiding adapter with movable squeezing piston is arranged at the back end of the capsule housing, the movable squeezing piston and the sealing piston are displaceable through the common mixing chamber in the direction towards the discharge opening.

17. Method of using a mixing capsule with a capsule housing for mixing, wherein the capsule housing has an opening to receive a rotary element, an opening located in a back region to receive a sealing piston and a discharge opening located in a front region, the rotary element comprising a first mixing chamber being arranged in the opening to receive the ro

Assignees

• Kulzer & Co Gmbh

Inventors

• Kemeny Andrea
• Kondziela Mike
• Suffel Ralf
• Utterodt Andreas
• Eck Michael
• Kocoglu Raif
• Balkenhol Markus

Classifications

• A61C5/66 Primary

  Capsules for filling material · CPC title

• A61C5/64

  for multi-component compositions · CPC title

• A61C5/68

  Mixing dental material components for immediate application to a site to be restored, e.g. a tooth cavity · CPC title

• B01F23/53

  using driven stirrers · CPC title

• B01F23/57

  Mixing high-viscosity liquids with solids · CPC title