JP2008284347A - Capsule for tooth restoration material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel capsule for tooth restoration materials with significantly improved efficiency in blending and kneading dental restoration materials composed of two components. <P>SOLUTION: The capsule for tooth restoration materials is constituted of a cylindrical capsule body 1 which forms a blending compartment 1b for storing a first component A and which has the circular cross section on the inner side; a plunger 2 which is inserted into the capsule body 1 in such a way as rotatable and slidable inside the capsule body and which comprises a rod-like projection 2a at the distal end, a first presser part 2b at the rear end, a rotation force transmitting engagement part 2c to which the rotation force is applied, a storage compartment 2d in which a second component B is stored and an agitator bar insertion hole 2e; a penetrating agitator bar 3 slidably inserted into the storage compartment 2d so that the second component B is introduced into the blending compartment 1b when pressed to the distal end and that the distal end of the agitator bar 3 penetrates into the inner side at the distal end of the blending compartment 1b or the vicinity; an agitation exclusive bar 4 slidably inserted into the agitator bar insertion hole 2e so that the distal end of the bar 4 penetrates into the inner side at the distal end of the blending compartment 1b or the vicinity; and a nozzle 5 to be fixed or attached to the capsule body 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is intended for use in filling, bonding, lining, and other applications for dental restoration in the field of dental treatment, as soon as the two-component dental restoration material is mixed and kneaded and immediately after the patient is to be restored. The present invention relates to a capsule for a tooth restoration material that can be administered.

  In general, tooth restoration materials are used for restoration of teeth. As the tooth restoration materials, a material composed of a powder component that reacts by mixing and kneading and a liquid component or a liquid component is generally used. . Conventionally, these two-component tooth restoration materials have been used by mixing and kneading each component as appropriate. However, in recent years, a certain amount of each component has been weighed in advance for the purpose of omitting the weighing operation of each component and the operation of storing the tooth restoration material after mixing and kneading it into the syringe for administration to the site to be restored. Each of these is stored in an isolated state, and when desired, the isolated state is released and mechanically mixed and kneaded with a mixer or the like, and the mixed kneaded material is restored to a tooth cavity or the like through a nozzle. Tooth restorative capsules have been developed that are extruded and administered directly.

  As such a capsule for a tooth restoration material, for example, a first opening formed in a cylindrical shape having a mixing compartment in which a powder component is accommodated and forming an outlet hole of the mixed kneaded material on the center axis of the tip portion thereof. And a second opening forming portion for forming a liquid component outlet hole on the central axis of the tip portion of the capsule body having a liquid component storage chamber in which the liquid component is stored. When the capsule body is fitted to the cylindrical part forming the mixing compartment of the capsule body and the second opening forming part is pushed through the outer surface in the vicinity of the rear end part to form an outlet hole for the liquid component A liquid cup provided with a convex stopper of a size that does not obstruct the entry into the capsule body when a large force is applied but is not easily slid into the second opening, and the second opening of the liquid cup form A plunger having a rod-like projection for pushing through the portion and the first opening forming portion of the capsule body, and being fitted to a cylindrical portion in the liquid cup, and a rear end portion at the tip portion of the capsule body There is a capsule for a tooth restoration material (see, for example, Patent Document 1) which has a corresponding shape and includes a nozzle connected to the tip of the capsule body.

  In order to mix and knead the two components housed individually using such a capsule for tooth restoration material, first, the plunger is slid to the tip side, and the second opening forming portion of the liquid cup is formed by the rod-shaped protrusion of the plunger. A capsule holding chamber for holding, for example, a capsule for a tooth restoration material and the capsule holding chamber after the liquid component stored in the liquid cup is allowed to flow into the mixing compartment in which the powder component of the capsule body is stored. A capsule kneading device for capsules for tooth restoration comprising a capsule holding chamber rotating means for circularly moving the capsule holding chamber itself in a state in which the longitudinal direction of the chamber is maintained in a constant direction, and a driving means for driving the capsule holding chamber rotating means (For example, refer to Patent Document 2.) Or, the powder component and the liquid component of the tooth restoration material are shaken and mixed and kneaded in the mixing compartment of the capsule for tooth restoration material. Therefore, a tooth in which two components are present in the mixing compartment of a device such as a device for kneading a capsule for a tooth restoration material (see, for example, Patent Document 3) having a capsule holding chamber for holding a capsule for a tooth restoration material The restoration material capsule is mounted, and thereafter, both components in the mixing compartment of the dental restoration material capsule are mixed and kneaded by rotating or shaking the dental restoration material capsule itself with such a device.

  However, in such a capsule for tooth restoration material, although the two components constituting the tooth restoration material can be mixed and kneaded in the mixing compartment of the capsule body of the capsule for tooth restoration material, a mixture can be easily obtained. When mixing and kneading the two components constituting the tooth restoration material in the mixing compartment of the capsule body of the capsule for tooth restoration material, the capsule for tooth restoration material itself is used by using a kneading device for capsules for tooth restoration material. By holding and rotating or shaking, the two components constituting the tooth restorative material collide with the inner wall of the mixing compartment of the capsule body and / or move indirectly along the inner wall, thereby indirectly in the mixing compartment of the capsule body. Since the two components are mixed and kneaded, there is not only a disadvantage that the mixing and kneading efficiency is bad, but also the viscosity of the mixture to be kneaded is mixed. Is higher, in the action of such indirect mixing and kneading, were a drawback that the efficiency of the mixing and kneading will further deteriorate.

  Further, in such a capsule for a tooth restoration material, as described above, the two components constituting the tooth restoration material collide with the inner wall of the mixing compartment of the capsule body and / or move along the inner wall to move the capsule body. Since the two components constituting the tooth restoration material are mixed and kneaded indirectly in the mixing compartment, the tooth restoration material is constituted in the mixing compartment of the capsule body of the tooth restoration material capsule. Space is required for the components to impact and / or move along the inner wall of the mixing compartment. For this reason, the capsule body has a drawback that it must be a capsule for a dental restoration material in which a mixing compartment having a large volume compared with the volume necessary for simply storing these two components is contained as a mixing compartment of the capsule body. In addition to improving the efficiency of mixing and mixing the capsules for tooth restoration materials, when the two components constituting the tooth restoration material collide with the inner walls in the mixing compartment having a certain space, the inner walls thereof Because it is necessary to increase the amount of movement when moving along the tooth, the tooth restoration in which a large volume mixing compartment having a larger space is formed in order to mix and knead these two components efficiently and uniformly There was also a drawback that it had to be a capsule for the material.

JP 2002-191622 A JP 2003-164469 A JP 2001-340355 A

  The present invention eliminates the disadvantages of the prior art, and is a capsule for a dental restoration material that can be immediately administered to a site to be restored by a patient after mixing and kneading a two-component dental restoration material, In particular, it is an object of the present invention to provide a novel capsule for a tooth restoration material in which the mixing and kneading efficiency is remarkably improved.

  As a result of diligent research to solve the above problems, the present inventors have been able to rotate and slide within the capsule body as a plunger fitted into the capsule body that forms the mixing compartment in which the first component is stored. A second component having a shape that is formed in parallel with the central axis of the mixing compartment of the capsule body and that has the same cross section is provided at the rear end thereof and a portion that is pressed toward the distal end and a portion to which rotational force is applied. Using a storage compartment and a plunger formed in parallel with the central axis and having a through hole for a stirring bar having the same cross section, and pushing the storage compartment into the storage compartment of this plunger Penetrating agitation so that the second component stored in the mixing chamber is introduced into the mixing compartment and its tip abuts on the inner surface of the tip of the capsule body in the mixing compartment or enters the vicinity of the inner surface of the tip. And a stirring-only rod body in a state where the tip of the plunger is in contact with the inner surface of the distal end in the mixing compartment of the capsule body or the vicinity of the inner surface of the distal end is inserted into the through hole for the stirring rod of the plunger. If inserted, the penetrating stirring bar is pressed to break through the storage compartment of the plunger so that the second component is introduced into the mixing compartment in which the first component is contained, and its tip is placed in the mixing compartment. When it touches the inner surface of the tip or penetrates to the vicinity of the inner surface of the tip, not only does this penetrating stirring rod protrude from the tip of the plunger, but also this stirring-only rod already protrudes from the tip of the plunger. Therefore, by applying a rotational force to the rear end of the plunger in such a state, the first component and the second component in the mixing compartment of the capsule body are moved to the plunger. Since it was mixed and kneaded with not only the penetrating stirring rod protruding from the bar but directly with the stirring rod, it was found that the efficiency of mixing and kneading can be greatly improved, and the present invention was completed. is there.

That is, the present invention comprises a capsule body that forms a cylindrical shape with a circular inner cross section, a mixing opening chamber in which a discharge opening rupture portion is formed on the tip side and a first component is housed. ,
It has a cylindrical shape and is slidably fitted into the mixing compartment so as to be able to rotate within the capsule body and to push out the mixture in the mixing compartment of the capsule body. A rod-like projection for pushing through the discharge opening breakage portion of the capsule body is provided so as to be rotated in the capsule body at the rear end thereof and a first pressing portion that is pressed toward the distal end side. A rotational force transmission engaging portion to which the rotational force is applied, and the rod-like shape from a position away from the first pressing portion and the rotational force transmission engaging portion and from a central axis of the mixing compartment of the capsule body The center of the mixing compartment of the capsule body in a shape that has the same transverse cross section from the insertion opening opened at the rear end to the opening opening breaking portion on the distal end side at a position that is separated from the circumferential side by more than the maximum thickness of the protrusion Second component formed parallel to the axis A storage compartment that is housed and a through-hole for a stirring bar that is formed in the shape of the same cross section from the rear end to the front end and formed in parallel with the central axis of the mixing compartment of the capsule body are respectively drilled. A plunger,
The plunger has a slidable shape in the storage compartment, and when the second pressing portion at the rear end is pressed toward the tip side, the tip breaks the opening opening for introduction of the plunger to remove the second component. The capsule body is introduced into the mixing compartment of the capsule body, and the distal end of the capsule body is fitted into the storage compartment of the plunger so as to contact the inner surface of the distal end of the mixing body of the capsule body or to penetrate into the vicinity of the inner surface of the distal end. A penetrating stirring rod,
The plunger stirring bar has a shape that is slidable in the plunger stirring bar through-hole, and the tip of the plunger is in contact with the inner surface of the mixing compartment chamber of the capsule body or in the vicinity of the inner surface of the tip. A stirring rod inserted into the through-hole,
The capsule body is fixed or attached to the distal end portion of the capsule body, and when the first pressing portion of the plunger is pressed toward the distal end side, the capsule body opens from the discharge opening breakage portion of the capsule body opened by the rod-like protrusion of the plunger. A nozzle for discharging a mixture obtained by mixing and kneading the first component and the second component in the mixing compartment;
It is comprised from these. The capsule for tooth restoration materials characterized by the above-mentioned.

  In such a capsule for tooth restoration material according to the present invention, if the plunger has a plurality of storage compartments and / or a plurality of stirring rod through holes, a plurality of penetration stirring rod bodies and a plurality of The mixing and kneading of the first component and the second component in the mixing compartment of the capsule body with a plurality of penetration stirring rods and a plurality of stirring dedicated rods during mixing and kneading by inserting a stirring rod into the plunger. Therefore, it is preferable that the mixing and kneading efficiency can be further improved, and the distance from the central axis of the plunger to the central axis of the plunger is different between the storage compartment of the plunger and the through hole for the stirring rod. The plunger storage compartment and the stirring rod through hole are at equal angles with respect to the central axis of the plunger when viewed from the rear end side of the plunger. If the plunger has a storage compartment and / or a stirring rod through-hole that is drilled so as to be positioned near the outer periphery of the plunger when viewed from the rear end side of the plunger They also found that the mixing and kneading efficiency can be remarkably improved.

  Further, a thin bar-like portion for storage having a cross-sectional area smaller in cross section than the rear end side and the same cross-section up to the front end is formed on the front end side of the through stir bar, and this through stirrer is formed. If the second component is stored in the space between the outer peripheral surface of the thin rod-shaped portion for storing the rod and the inner peripheral surface of the plunger storage compartment, even if the pressing force is weak, the plunger storage compartment In the aspect having such a thin bar-like portion for storage, it is preferable that the introduction opening fracture portion can be surely broken. When the two pressed parts are pressed toward the front end and the front end abuts on the inner surface of the front end of the mixing compartment of the capsule main body or is penetrated to the vicinity of the inner surface of the front end of the capsule body, Near the opening rupture part for introduction of the compartment And the cross-sectional area of the position where the opening opening rupture portion of the storage compartment of the plunger is pushed and broken by the thin rod-shaped portion for storage is slightly larger than the cross-sectional area of the thin rod-shaped portion for storage. It has also been found that it is preferable that the second component housed in the storage compartment of the plunger is surely introduced into the mixing compartment of the capsule body if it is formed.

  Furthermore, the front end side of the penetrating stir bar has a cylindrical shape that is obliquely cut off at the end of the solid penetrating stir bar, and can push through the opening opening break portion of the storage compartment of the plunger and It is formed of a flexible material that is crushed when it contacts the inner surface of the front end of the mixing compartment of the capsule body. The sliding thin rod-shaped portion is formed, and the sliding thin rod-shaped portion has a cross-sectional outer periphery that is the same shape as a cross-sectional outer periphery of the penetrating stirring rod body, and a tip portion thereof is obliquely cut away. The capsule body is formed in a cylindrical shape, and in the initial position, the obliquely cut-out portion is located in a state protruding from the tip of the sliding rod-like portion, and pushes through the opening opening rupture portion of the storage compartment of the plunger. In contact with the inner surface of the tip of the mixing compartment If the piercing part configured to slide to the rear end side is externally fitted, the opening opening rupture part for introduction of the storage compartment of the plunger can be reliably broken even with a weak pressing force. In addition, the inner surface of the tip of the mixing compartment of the capsule body and the tip of the penetrating stirrer are in contact with each other, so that the mixture in the mixing compartment of the capsule body can be pushed out so as not to remain in the mixing compartment. It was also investigated.

  Furthermore, the rotational force transmission engaging portion of the plunger is composed of a plurality of concave portions and / or convex portions provided at the rear end of the plunger, or the rotational force transmission engaging portion of the plunger is the rear portion of the plunger. If the cross section provided at the end and at a position that coincides with the central axis of the mixing compartment of the capsule body is made of a concave portion or a convex portion other than a circle, the plunger can be reliably rotated. Preferably, if the rotational force transmission engaging part of the plunger also serves as the first pressing part, the part to which the rotational force for rotating the plunger is applied and the pressing force for pressing the plunger toward the tip side are applied. It has also been found that it is preferable to integrate the sites to be integrated into one.

  Since the capsule for a tooth restoration material according to the present invention is configured as described above, the first component is stored as the second component by pressing the penetrating stirrer to push through the storage compartment of the plunger. After the capsule body is introduced into the mixing compartment and its tip abuts on the inner surface of the tip of the mixing compartment or penetrates to the vicinity of the inner surface of the tip of the capsule, the penetrating stirring rod not only protrudes from the plunger. In addition, since the stirring-only bar inserted into the through-hole for the stirring rod of the plunger is also protruded from the plunger, in such a state, a rotational force is applied to the rotational force transmission engaging portion of the plunger. As a result, the first and second components in the mixing compartment of the capsule body protrude not only from the penetrating stir bar, but also from the plunger. Mixing and kneading in such a way that it can be directly agitated by mixing can not only greatly improve the efficiency of mixing and kneading, but also the mixing of the capsule body when mixing and kneading the first component and the second component Since the penetrating stirring rod and the stirring-only rod projecting from the plunger in the compartment are rotated so as to revolve around the central axis of the plunger, the mixing compartment of the capsule body is formed by the penetrating stirring rod and the stirring-only rod. Since a force that directly shears both components in the chamber is applied, both components can be mixed and kneaded effectively and uniformly to obtain a high-quality mixture.

  The capsule for tooth restoration material according to the present invention directly transfers both the first component and the second component in the mixing compartment of the capsule body by the penetrating stirring rod protruding from the plunger and the stirring dedicated rod as described above. Since mixing and kneading is carried out by stirring, in the conventional capsule for tooth restoration material that is mixed and kneaded by rotating or shaking the capsule for tooth restoration material itself, the mixing compartment of the capsule body has both components. However, the capsule for a tooth restoration material according to the present invention does not require such a space at all. The capacity of the mixing compartment can be reduced to a grade.

  In addition, the capsule for tooth restoration material according to the present invention directly transfers both the first component and the second component in the mixing compartment of the capsule body by the penetrating stirring rod projecting from the plunger and the stirring dedicated rod as described above. Both components in the capsule body are compared with the conventional capsule for tooth restoration material, which is mixed and kneaded by rotating or shaking the capsule for tooth restoration material itself because it is mixed and kneaded by stirring. It is possible to reduce the size of the capsule kneading device for a tooth restoration material used when mixing and kneading the powder. Extrusion device used for attaching the capsule for tooth restoration material according to the above and directly extruding the mixture in the capsule body through the nozzle to the site to be restored such as the cavity of the tooth , This incorporates a capsule for the tooth restorative material kneader for, and that the invention may be embodied integrating the kneader and extrusion apparatus for encapsulating a tooth restoration material.

  In such a capsule for tooth restoration material according to the present invention, if the plunger has a plurality of storage compartments and / or a plurality of stirring rod through holes, a plurality of penetration stirring rod bodies and a plurality of The mixing and kneading of the first component and the second component in the mixing compartment of the capsule body with a plurality of penetration stirring rods and a plurality of stirring dedicated rods during mixing and kneading by inserting a stirring rod into the plunger. Therefore, it is preferable that the mixing and kneading efficiency can be further improved, and the distance between the central axis of the plunger and the central axis of the plunger is different between the storage compartment of the plunger and the through hole for the stirring rod. 1 or a plurality of penetrating stirring rods or one or a plurality of stirring-only rods are rotated so as to revolve at different positions around the central axis of the plunger. Therefore, it is preferable that the mixing and kneading efficiency can be remarkably improved, and the plunger storage compartment and the stirring rod through-hole are evenly distributed with respect to the central axis of the plunger when viewed from the rear end side of the plunger. If it is perforated at a position that makes a proper angle, uniform mixing force can be applied to both components in the mixing compartment of the capsule body, so that the mixing and kneading efficiency can be greatly improved. If the plunger further has a storage compartment and / or a stirring rod through hole that is drilled so as to be located near the outer periphery of the plunger when viewed from the rear end side of the plunger, Since a large stirring force can be applied to both components in the mixing compartment of the capsule body, the mixing and kneading efficiency can be remarkably improved, which is preferable.

  In addition, a thin bar-like portion for storage having a cross-sectional area that is smaller in cross-sectional area than the rear end side and the same cross-section up to the front end is formed on the front end side of the through stir bar, and the through stir bar If the second component is stored in the space between the outer peripheral surface of the body storage thin rod-shaped part and the inner peripheral surface of the plunger storage compartment, introduction of the plunger storage compartment is possible even with a weak pressing force. The opening opening for the storage compartment can be reliably broken, and the opening opening for the storage compartment can be reached with a relatively small sliding distance. It is also preferable that the rupture portion can be quickly broken, and in the embodiment having such a thin bar portion for storage, the thin bar portion for storage of the penetrating stir bar is the second pressing portion of the penetrating stir bar. The tip is pushed to the tip side When the rear end of the storage rod-like portion reaches the vicinity of the opening opening breakage portion of the storage compartment of the plunger when it contacts the inner surface of the front end of the mixing compartment of the purse body or penetrates to the vicinity of the inner surface of the tip The cross-sectional area of the position where the opening opening rupture portion of the storage compartment of the plunger is pushed and broken by the storage thin rod-shaped portion is slightly larger than the cross-sectional area of the storage thin rod-shaped portion. In this case, the second component stored in the storage compartment of the plunger can be surely introduced into the mixing compartment of the capsule body with almost no remaining, which is preferable. Since the cross-sectional area of the opening fracture is slightly larger than the cross-sectional area of the storage rod-shaped part, the first pressing part of the plunger is pressed toward the tip side and mixed and kneaded. Mixture at the time of ejecting, because the mixture does not flow back into the storage compartment of the plunger, preferably mixed and kneaded has been mixture can be put into use without waste.

  Furthermore, the front end side of the penetrating stir bar has a cylindrical shape that is obliquely cut off at the end of the solid penetrating stir bar, and can push through the opening opening break portion of the storage compartment of the plunger and It is formed of a flexible material that is crushed when it contacts the inner surface of the front end of the mixing compartment of the capsule body. The sliding thin rod-like portion having the sliding cross-section is formed on the sliding thin rod-like portion, the outer periphery of which is the same shape as the outer periphery of the cross-section of the penetrating stirring rod, and the tip thereof is obliquely cut off. The capsule body is formed in a cylindrical shape, and in the initial position, the obliquely cut-out portion is located in a state protruding from the tip of the sliding rod-like portion, and pushes through the opening opening rupture portion of the storage compartment of the plunger. In contact with the inner surface of the tip of the mixing compartment Then, if the piercing part configured to slide to the rear end side is fitted externally, the opening opening breaking part for introduction of the storage compartment of the plunger can be surely broken even with a weak pressing force. This is not only preferable, but also the tip of the penetrating stirring bar can be surely intruded until it comes into contact with the inner surface of the tip of the mixing chamber of the capsule body, so that the mixing and kneading efficiency can be remarkably improved. At the same time, the inner surface of the front end of the mixing compartment of the capsule body and the front end of the penetrating stir bar are in contact with each other, so that the mixture in the mixing compartment of the capsule body can be pushed out without remaining in the mixing compartment, which is economical and preferable.

  Furthermore, the rotational force transmission engaging portion of the plunger is composed of a plurality of concave portions and / or convex portions provided at the rear end of the plunger, or at the rear end of the plunger and the mixing compartment of the capsule body. If the cross section provided at a position that coincides with the central axis is made of a concave portion or a convex portion other than a circle, it is not only preferable because the plunger can be reliably rotated, and the rotation of the plunger In the case where the force transmission engagement portion is composed of a plurality of drive engagement portions, for example, an engagement member provided with a concave shape and / or a convex shape that can be engaged with the plurality of drive engagement portions is driven. Since the concave and / or convex shape of the engaging member is inserted into and engaged with a plurality of driving engaging portions of the rotational force transmitting engaging portion, the engaging member is rotated. Engagement with rotational force transmission engaging part Since the rotational force transmission engaging part can be rotated even if the torque is relatively weak, it is preferable that the drive means can be easily attached to and detached from the rotational force transmission engaging part. When the cross section provided at a position that coincides with the central axis of the plunger is a concave or convex shape other than a circle, for example, the shaft of the driving means is directly fitted into the concave shape of the rotational force transmission engaging portion, Since the convex shape of the rotational force transmission engaging portion is directly fitted into the concave portion drilled in the tip of the shaft of the driving means, the structure of the rotational force transmission engaging portion can be simplified. Preferably, each may be appropriately selected according to the situation.

  In addition, if the rotational force transmission engaging part of the plunger also serves as the first pressing part, the part to which the rotational force for rotating the plunger is applied and the pressing force for pressing the plunger toward the tip side are applied. It is not only preferable to be integrated into one unit, but for example, by sliding back and forth as a device in which the above-mentioned device for kneading a capsule for tooth restoration material and an extrusion device are integrated The operation of mixing and kneading the first component and the second component and the tooth of the mixture by using a shaft incorporating a rotary drive shaft configured to be able to press the first pressing portion of the plunger toward the tip side When performing an operation of pushing out to a portion to be repaired such as a cavity, the rotation drive shaft of this device can be smoothly performed by engaging with a rotational force transmission engaging portion that also serves as a first pressing portion. In addition, it is possible to perform the operation of mixing and kneading the first component and the second component and the operation of pushing out the mixture to the site to be repaired, such as the cavity of the tooth, by the same rotational drive shaft. Such an apparatus itself is preferable because it can be simplified.

Hereinafter, the capsule for a tooth restoration material according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side sectional view for explaining an embodiment of a capsule for tooth restoration material according to the present invention, FIG. 2 is a rear view for explanation of FIG. 1, and FIG. 3 is a penetration stirring in the capsule for tooth restoration material shown in FIG. By pushing the rod body toward the tip side, the penetrating stirring rod body pushes through the opening opening for introduction of the storage compartment of the plunger to introduce the second component into the mixing compartment chamber of the capsule body, and the tip of the penetrating stirring rod body FIG. 4 is a side sectional view for explanation showing a state where the capsule body has penetrated to the vicinity of the inner surface of the distal end inside the mixing compartment of the capsule body. FIG. 4 is a diagram showing a rotational force applied to the rotational force transmitting engagement portion of the plunger in the capsule for tooth restoration material shown in FIG. By mixing and kneading the first component and the second component in the mixing compartment of the capsule body with the penetrating stirring rod body and the stirring-only rod body, and then pressing the first pressing portion of the plunger toward the tip side Plunger rod FIG. 5 is a side sectional view for explaining a state in which the mixture in the mixing compartment of the capsule main body is discharged from the nozzle from the discharge opening breakage portion of the capsule main body opened by the protrusion, FIG. 5 is a capsule for tooth restoration material according to the present invention FIG. 6 is a rear view for explanation of FIG. 5, and FIG. 7 is an explanation of one example of the distal end side of the penetrating stir bar in the capsule for tooth restoration material according to the present invention. FIG. 8 is a side sectional view for explanation of FIG. 7, FIG. 9 is a side view for explanation showing another example of the distal end side of the penetrating stirring rod in the capsule for tooth restoration material according to the present invention, and FIG. FIG. 10 is a side sectional view for explanation of FIG. 9.

  In the drawings, reference numeral 1 denotes a cylindrical shape having a circular inner cross-section, and a discharge opening rupture portion 1a is formed on the tip side thereof, and a mixing compartment 1b in which a first component A is stored is formed. It is a capsule body, and a nozzle 5 (described later) for discharging the mixture C in the mixing compartment 1b is fixed or attached to the tip of the capsule body, and a plunger 2 (described later) is rotatable and slides from the rear end side. The first component A and the second component B are mixed and kneaded into a mixture C in the mixing compartment 1b formed on the tip end side of the plunger 2 inserted into the cylinder freely.

  The capsule body 1 has a plunger 2 which is slidably inserted from the rear end side thereof and is rotated around the central axis of the plunger 2 in the cylinder. Therefore, as shown in FIG. 2 and FIG. The inner surface needs to be circular, and the capsule body 1 is mounted on the outer peripheral surface of the capsule body 1 in a kneading device or an extrusion device for a capsule for a tooth restoration material as shown in FIGS. 1 and 3 to 5. It is preferable that an engagement portion (for example, an engagement portion such as a groove formed on the rear end side of the outer peripheral surface of the capsule body 1) is formed. The engaging portion applies a rotational force to a rotational force transmission engaging portion 2c of the plunger 2 described later, and rotates the penetrating stirring rod 3 described later and the stirring dedicated rod 4 described later together with the plunger 2. The capsule body 1 itself resists the rotational force applied to the rotational force transmission engaging portion 2c of the plunger 2 so that the capsule body 1 itself does not rotate together with the plunger 2, the penetrating stirring rod body 3 and the stirring-only rod body 4. It is preferable that the shape can be locked.

  A discharge opening rupture portion 1a is formed on the distal end side of the capsule body 1, and the discharge opening rupture portion 1a is mixed with the first component A and the second component B in the mixing compartment 1b. When the mixture C obtained by kneading is discharged through a nozzle 5 described later, the mixture compartment 1b is communicated with the nozzle 5 by being broken by a rod-shaped protrusion 2a of a plunger 2 described later. As the discharge opening fracture portion 1a, for example, as shown in FIGS. 1 and 3 to 5, if the linear portion surrounding the discharge opening fracture portion 1a is formed to be thin, leaving a part, When the discharge opening breaker 1a is pushed by a rod-like protrusion 2a of the plunger 2 described later, the other linear part is broken leaving the thicker linear part, so the thinner linear part Can be easily broken with a weak force, and the discharge opening break 1a is a capsule book. It preferred to be able to prevent that mixed in the mixture C is completely disengaged from 1.

  Fixed to the distal end of the capsule body 1 is a later-described nozzle 5 for directly administering the mixture C in the mixing compartment 1b discharged from the broken discharge opening rupture portion 1a to a portion to be repaired by the patient. Alternatively, the shape of the tip of the capsule body 1 is such that the nozzle 5 can be fixed or attached, and the mixture C discharged from the discharge opening breaking portion 1a does not leak to the outside. If it is formed in the shape which can be made to flow in into nozzle 5, it will not be limited in particular.

  2 has a cylindrical shape and is slidably fitted in the mixing compartment 1b so as to be rotatable in the capsule body 1 and to allow the mixture C in the mixing compartment 1b of the capsule body 1 to be pushed out. A rod-like protrusion 2a for pushing and breaking the discharge opening breaking portion 1a of the capsule body 1 is provided at a substantially central position of the tip, and a first pressing portion 2b that is pressed toward the tip is provided at the rear end thereof. A rotational force transmitting engagement part 2c to which a rotational force for rotation in the capsule body 1 is applied, and a position away from the first pressing part 2b and the rotational force transmission engaging part 2c and the capsule body 1 The same cross section from the center axis of the mixing compartment 1b to the circumferential side more than the maximum thickness of the rod-shaped protrusion 2a and from the insertion opening 2da that opens at the rear end to the leading opening opening breaking portion 2db In parallel with the central axis of the mixing compartment 1b of the capsule body 1 A stir bar formed in parallel with the central axis of the mixing compartment 1b of the capsule body 1 in the shape of the storage compartment 2d in which the second component B is formed and having the same cross section from the rear end to the tip Through-holes 2e for each of which are perforated, and a later-described through-stirring rod 3 fitted into the insertion port 2da at the rear end of the storage compartment 2d is slid toward the front end side, The mixing opening of the capsule body 1 in which the first component A is stored in the second component B stored in the storage partition 2d by the introduction opening break 2db on the distal end side of the storage partition 2d being pushed through. The tip of the penetrating stirrer 3 is brought into contact with the inner surface of the mixing compartment chamber 1b of the capsule body 1 or the inner surface of the tip of the penetrating stirrer 3 is slid further to the tip side. In the state where it has penetrated to the vicinity and through hole 2e for the stirring rod An agitating rod 4 to be described later inserted into the rotational force transmitting engagement portion 2c with its tip abutting against the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or intruding to the vicinity of the inner surface of the tip. When a rotational force is applied, it is rotated together with the penetrating stirring rod 3 and the stirring-only rod 4 projecting from the distal end surface of the plunger 2, and the first component A and the second component A in the mixing compartment 1 b of the capsule body 1 are rotated. The component B is mixed and kneaded to obtain a mixture C.

  The plunger 2 is rotatable from the rear end side of the capsule body 1 opened in the mixing compartment 1b of the capsule body 1 in which the first component A is accommodated as shown in FIGS. It is slidably inserted so that the mixture C in the mixing compartment 1b of the main body 1 can be pushed out, and a rod-like protrusion for pushing through the discharge opening breaking portion 1a of the capsule main body 1 at a substantially central position at the tip thereof. 2a protrudes, and at the rear end thereof, a first pressing portion 2b pressed toward the distal end side, and a rotational force transmission engaging portion 2c to which a rotational force for rotating within the capsule body 1 is applied When a rotational force is applied to the rotational force transmission engaging portion 2c of the plunger 2, a through stirring rod body 3 and a stirring rod through hole 2e, which will be described later, protrude from the distal end surface of the plunger 2. Together with the stirring bar 4 protruding from the tip side The first component A and the second component B are mixed and kneaded in the mixing compartment 1b of the capsule body 1 to obtain a mixture C. As shown in FIG. 4, the rod-shaped protrusion 2a pushes the discharge opening break portion 1a of the mixing compartment 1b of the capsule body 1 to open the front end side of the mixing compartment 1b into a nozzle 5 which will be described later. Then, the mixed and kneaded mixture C in the mixing compartment 1 b is pushed out by the tip end surface of the plunger 2 and discharged outward through the nozzle 5.

  The reason why the rod-like protrusion 2a of the plunger 2 is provided at the approximate center position of the tip of the plunger 2 is that the rod-like protrusion 2a is located at a position other than the center position of the tip of the plunger 2, for example, the tip side of the plunger 2 If it is projected from a position near the outer periphery of the plunger 2 when viewed from above, a rotational force is applied to the rotational force transmitting engagement portion 2c of the plunger 2 to rotate the plunger 2 around its central axis. After that, the position where the rod-shaped protrusion 2a is provided is displaced from the initial position before the rotation to another position on the circumference around the central axis in the vicinity of the outer peripheral edge of the plunger 2, so Even if one pressing portion 2b is pressed to the tip side, there is a situation in which it becomes impossible to push through the discharge opening rupture portion 1a of the mixing compartment 1b of the capsule body 1. Stick A rod-like protrusion at the substantially central position of the tip of the plunger 2 that the protruding position of the plunger 2 hardly changes even before and after the rotation so that the discharge opening breaking portion 1a can be accurately pushed by 2a. 2a is protruding.

  The plunger 2 has a first pressing portion 2b at its rear end, and the first pressing portion 2b of the plunger 2 pushes out the mixture C in the mixing compartment 1b of the capsule body 1 as shown in FIG. This is a portion that is pressed toward the tip when discharged outwardly through a nozzle 5 that will be described later, and the first pressing portion 2b is an obstacle to the penetration stirring rod 3 and the stirring-only rod 4 that will be described later. Anything can be used as long as the rear end of the plunger 2 can be pressed toward the front end without being pushed.

  Specifically, as shown in FIGS. 5 and 6, the rear end surface of the plunger 2 is fitted with a storage compartment 2 d into which a later-described penetration stirring rod 3 is inserted, and a stirring-only rod 4 described later. A part other than the part where the stirring rod through hole 2e and the rotational force transmitting engagement part 2c exist may be used as the first pressing part 2b. However, as shown in FIGS. If the combined portion 2c also serves as the first pressing portion 2b, a portion to which a rotational force for rotating the plunger 2 is applied and a portion to which a pressing force for pressing the plunger 2 toward the distal end are provided. Not only is it preferable that it can be integrated into one, but also, for example, as a device in which a capsule kneading device for tooth restoration material and an extrusion device are integrated, the first pressing portion 2b of the plunger 2 is slid back and forth. That can be pressed to the tip side. When an operation in which a rolling drive shaft is incorporated is used, an operation of mixing and kneading the first component A and the second component B and an operation of pushing the mixture C to a site to be repaired such as a cavity of a tooth are performed. The rotation drive shaft of this device can be smoothly performed by engaging the rotational force transmission engaging portion 2c which also serves as the first pressing portion 2b, and the first component A and the second component B are mixed. Since the operation of kneading and the operation of pushing out the mixture C to the site to be repaired such as the cavity of the tooth can be performed by the same rotational drive shaft, such an apparatus itself can be simplified. preferable.

  The plunger 2 also has a rotational force transmission engaging part 2c to which a rotational force for rotating the capsule 2 in the capsule body 1 is applied. 3 shows a state where the plunger 2 is centered in the capsule body 1 by applying a rotational force in a state in which a penetrating stirring rod 3 and a stirring-only rod 4 which will be described later protrude from the distal end surface of the plunger 2 as shown in FIG. By rotating about the axis, the penetrating stirring bar 3 and the stirring-only bar 4 are rotated in the mixing compartment 1b so as to revolve around the central axis of the plunger 2 as the plunger 2 rotates. The first component A and the second component B in the mixing compartment 1b are mixed and kneaded to form a mixture C. The rotational force transmitting engagement portion 2c is a plunger in at least the capsule body 1. Any structure may be used as long as it can apply a rotational force to the plunger 2 so as to rotate the 2 around its central axis.

  Specifically, as the rotational force transmission engaging portion 2c of the plunger 2, for example, as shown in FIGS. 5 and 6, a plurality of rotational force transmission engaging portions 2c of the ranger 2 are provided at the rear end of the plunger 2. As shown in FIGS. 1 to 4, the rotational force transmitting engagement portion 2 c of the plunger 2 is the rear end of the plunger 2 and the center of the mixing compartment 1 b of the capsule body 1. There are those in which the cross section provided at a position coinciding with the axis consists of a concave portion or a convex portion other than a circular shape.

  In the case where the former rotational force transmission engaging portion 2c is composed of a plurality of concave portions and / or convex portions, a convex shape and / or a shape that can be engaged with the plurality of concave portions and / or convex portions. An engaging member provided with a concave shape is attached to the shaft of the driving means, and the convex shape and / or concave shape of this engaging member is inserted into the plurality of concave portions and / or convex portions of the rotational force transmission engaging portion 2c. Since the engagement force between the engaging member and the rotational force transmission engaging portion 2c is relatively weak, the rotational force transmission engaging portion 2c can be rotated. Desorption of the driving means to the joint site 2c is preferable because it can be simplified.

  On the other hand, in the case where the latter rotational force transmission engaging portion 2c is formed of a concave portion or a convex portion other than a circular cross section provided at a position coincident with the central axis of the mixing compartment 1b of the capsule body 1. The shaft of the driving means is directly fitted into the concave portion of the rotational force transmission engaging portion 2c, or the convex portion of the rotational force transmission engaging portion 2c is directly inserted into the concave portion formed at the tip of the shaft of the driving means. Since the structure of the rotational force transmission engaging portion 2c can be simplified, it is not only preferable, but also in such an embodiment as shown in FIGS. In the case where the engaging part 2c also serves as the first pressing part 2b, it is possible to press the first pressing part 2b of the plunger 2 to the tip side by sliding forward and backward as described above, for example. Using a device with a built-in rotary drive shaft In this case, it is preferable that the rotary drive shaft can be easily engaged, and the shape of the rotary drive shaft can be simplified.

  As shown in FIGS. 1 and 3 to 5, the plunger 2 is located away from the first pressing portion 2 b and the rotational force transmitting engagement portion 2 c and from the central axis of the mixing compartment 1 b of the capsule body 1. The capsule body 1 is mixed in a shape that has the same cross-section from the insertion opening 2da opened at the rear end to the opening opening breaking portion 2db at the front end at a position more than the maximum thickness of the rod-shaped protrusion 2a and away from the circumference. A storage compartment 2d formed parallel to the central axis of the compartment 1b and containing the second component B is perforated. The storage compartment 2d is stored in the state where the second component B is stored. A penetration stirring rod 3 described later is slidably inserted from the insertion port 2da at the rear end of the chamber 2d to the front end side, so that the second component B is brought outside in the storage compartment 2d as shown in FIG. It is stored without leaking, and the penetrating stirring bar 3 is pressed toward the tip side. Then, as shown in FIG. 3, the second component B, which is stored by being pushed through the opening opening breaking portion 2db on the tip side, is transferred into the mixing compartment 1b of the capsule body 1 in which the first component A is stored. After being introduced and pressed until the tip of the penetrating stirring bar 3 comes into contact with the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or penetrates to the vicinity of the inner surface of the tip, the rotational force of the plunger 2 When the plunger 2 is rotated around the central axis in the mixing compartment 1b by applying a rotational force to the transmission engagement portion 2c, the through stirring rod 3 fitted in the storage compartment 2d Is a state in which it protrudes from the front end surface of the plunger 2, and a stirring rod 4 which will be described later also protrudes from the front end surface of the plunger 2, and is integrated with the plunger 2 in the mixing compartment 1b. The center It is of being brought rotated so as to revolve in.

  The storage compartment 2d of the plunger 2 may have any shape as long as it has the same cross section from the insertion opening 2da that opens at the rear end to the opening opening breaking portion 2db at the front end. In order to prevent the second component B stored in the storage compartment 2d from leaking out to the outside, at least a penetration stirring rod 3 (described later) fitted into the storage compartment 2d may be used. The cross section corresponding to the cross section must be formed in such a shape that the penetrating stirrer 3 can be slidably inserted, and the introduction formed on the front end side of the storage compartment 2d. As the opening fracture portion 2db, for example, as shown in FIGS. 1 and 3 to 5, if the linear portion surrounding the introduction opening fracture portion 2db is formed to be thin except for a part, the introduction opening fracture portion 2db is formed. When pushing through the tip of the penetrating stirring rod 3 described later, the thicker line The other linear part is broken, leaving the part, so that the thinner linear part can be easily broken with a weak force, and the opening opening breaking part 2db is completely detached from the plunger 2 and capsule. It is preferable that it can be prevented from mixing into the mixing compartment 1b of the main body 1.

  Further, as shown in FIGS. 1 and 3 to 5, the plunger 2 is positioned away from the first pressing portion 2 b and the rotational force transmitting engagement portion 2 c and from the central axis of the mixing compartment 1 b of the capsule body 1. A stir bar formed parallel to the central axis of the mixing compartment 1b of the capsule body 1 in a shape that forms the same cross-section from the rear end to the front end at a position more than the maximum thickness of the bar-shaped protrusion 2a A through hole 2e is also formed along with the storage compartment 2d, and a stirring rod 4 to be described later is placed on the inner surface of the mixing compartment 1b of the capsule main body 1 in the stirring rod through hole 2e. The plunger 2 is fitted in a state where it abuts or penetrates to the vicinity of the inner surface of the tip end, and in the state shown in FIG. Rotated in the mixing compartment 1b as the center In this state, a stirring-only rod body 4 to be described later inserted into the through-hole 2e for the stirring rod protrudes from the distal end surface of the plunger 2, and a penetration stirring rod body 3 to be described later protrudes from the distal end surface of the plunger 2, It is made to rotate integrally with the plunger 2 so as to revolve around the central axis of the plunger 2 in the mixing compartment 1b.

  The presence of the stirring rod through hole 2e of the plunger 2 in this way will be described later when the first component A and the second component B in the mixing compartment 1b of the capsule body 1 are mixed and kneaded. Mixing and kneading can be performed not only by the penetration stirring rod 3 but also by a stirring-only rod 4 described later, so that not only the mixing and kneading efficiency can be remarkably improved, but also the plunger 2 has its tip side. Compared to forming the storage compartment 2d having the opening breaking portion 2db for introduction and containing the second component B, the stirring bar having the same cross section from the rear end to the front end. Since it is easier to form the through hole 2e and the manufacturing cost is lower, for example, one through stirring rod 3 described later, one stirring dedicated rod 4 described later, and one storage compartment 2d and 1 A plunger 2 having two stirring rod through holes 2e; When used, its production cost is maintained while maintaining its high mixing and kneading efficiency as compared with the case of using the plunger 2 having two through-stirring rods 3 and two storage compartments 2d. Can be made cheaper.

  The storage compartment 2d and the stirring rod through-hole 2e need to be drilled at positions away from the first pressing portion 2b and the rotational force transmitting engagement portion 2c of the plunger 2. Since a through stirring rod 3 described later is inserted into 2d and a stirring exclusive rod 4 described below is inserted into the through hole 2e for the stirring rod, the through stirring rod 3 and the stirring exclusive rod 4 are pressed. On the other hand, the storage compartment 2d and the stirring rod through hole 2e are larger than the maximum thickness of the rod-shaped protrusion 2a of the plunger 2 from the central axis of the mixing compartment 1b of the capsule body 1. It is necessary to be drilled away from the circumference side so that the penetrating stirring bar 3 and the stirring-only bar 4 do not interfere with the bar-shaped protrusion 2a protruding at the substantially central position of the tip of the plunger 2. It is to make it.

  The storage compartment 2d and the stirring rod through hole 2e may be formed in the plunger 2 by one as shown in FIGS. 1 to 4, for example, as shown in FIGS. If the plunger 2 has a plurality of storage compartments 2d and / or a plurality of stirring rod through holes 2e as shown, a plurality of penetration stirring rod bodies 3 and a plurality of stirring-only rod bodies 4 are fitted into the plunger 2. When mixing and kneading, the first component A and the second component B in the mixing compartment 1b of the capsule body 1 are mixed and kneaded with the plurality of through stirring rods 3 and the plurality of stirring rods 4. Therefore, it is preferable that the mixing and kneading efficiency can be further improved, and as shown in FIGS. 5 and 6, the storage compartment 2d of the plunger 2 and the through hole 2e for the stirring rod are connected to the plunger from the respective central axes. The distance to the center axis of 2 is different If it is drilled in such a manner, the one or a plurality of penetrating stirring rods 3 and the one or a plurality of stirring rods 4 are rotated so as to revolve at different positions around the central axis of the plunger 2. Therefore, it is preferable that the mixing and kneading efficiency can be remarkably improved. Further, as shown in FIGS. 5 and 6, the storage compartment 2d of the plunger 2 and the through hole 2e for the stirring rod are provided from the rear end side of the plunger 2. If it is perforated at a position where the angle is equal to the central axis of the plunger 2 when viewed, the first component A and the second component B in the mixing compartment 1b of the capsule body 1 are uniform. It is preferable that the mixing and kneading efficiency can be remarkably improved, and when the plunger 2 is viewed from the rear end side of the plunger 2 as shown in FIGS. Near the outer periphery of the plunger 2 The first component A and the second component B in the mixing compartment 1b of the capsule body 1 if the storage compartment 2d and / or the through hole 2e for the stirrer bar drilled so as to be located at Since a large stirring force can be applied to the mixture, the mixing and kneading efficiency can be remarkably improved, which is preferable.

  3 has a slidable shape in the storage compartment 2d of the plunger 2, and when the second pressing portion 3a at the rear end is pressed to the front end side, the opening break for introduction of the storage compartment 2d of the plunger 2 at the front end is performed. The portion 2db is pushed through to introduce the second component B into the mixing compartment 1b of the capsule body 1 and its tip abuts against the inner surface of the tip of the mixing compartment 1b of the capsule body 1 or penetrates to the vicinity of the inner surface of the tip. A penetrating stir bar inserted into the storage compartment 2d of the plunger 2 so as to be squeezed, and the second pressing portion 3a at the rear end thereof is pressed toward the front end side, whereby the storage compartment of the plunger 2 at the front end. The second opening B is introduced into the mixing compartment 1b of the capsule body 1 by breaking through the opening opening breaking portion 2db of 2d, and the second pressing portion 3a is further pushed toward the distal end side, and the storage compartment of the plunger 2 2d slides and the tip is The plunger 2 is applied with a rotational force applied to a rotational force transmitting engagement portion 2c, which will be described later, in contact with the inner surface of the front end of the mixing compartment 1b of the main body 1 or to the vicinity of its inner surface. When rotated about the central axis, the penetrating stirrer bar 3 protrudes from the front end surface of the plunger 2, and the stirrer bar 4 described later also protrudes from the front end surface of the plunger 2, By being integrally rotated within the mixing compartment 1b so as to revolve around the central axis of the plunger 2, the first inside of the mixing compartment 1b of the capsule body 1 together with the agitating rod 4 described later is provided. The component A and the second component B are mixed and kneaded so as to be directly stirred.

  As shown in FIGS. 1 to 6, the penetrating stirring bar 3 has a shape that can be slidably fitted into the storage compartment 2 d of the plunger 2, that is, its transverse section corresponds to the transverse section of the storage compartment 2 d of the plunger 2. As long as the penetrating stirrer 3 has a longitudinal length, the length of the penetrating stirring rod 3 in the longitudinal direction is when the plunger 2 is positioned at the initial position before being pushed toward the tip in the capsule body 1. In FIG. 2, the penetration stirring rod 3 is pressed to the tip side, and the tip breaks the opening opening breaking portion 2db for the introduction of the storage compartment 2d of the plunger 2, and then further pushes to the tip side and slides further to the tip side. When it is pressed until it cannot be moved, that is, until it can no longer slide to the tip side due to direct or indirect position regulation, at least the tip of the tip inner surface of the mixing compartment 1b of the capsule body 1 Abut or beyond Is the only to have a length longer than that can penetrate to the inner surface near.

  The penetration stirring bar 3 pushes through the opening opening breaking portion 2db for introduction of the storage compartment 2d of the plunger 2 at its tip, and the shape of the penetration stirring bar 3 on the tip side is a storage compartment. There is no particular limitation as long as it has a shape that can push through the introduction opening fracture portion 2db of the chamber 2d.For example, the introduction opening fracture portion 2db has a linear portion surrounding the introduction opening fracture portion 2db as described above. In the case of a thinly formed form leaving a part, when the introduction opening fracture portion 2db is pushed through the tip of the penetrating stirrer bar 3, the thicker linear portion is left and another linear shape is left. Since this part can be easily broken with a weak force, the tip of the penetrating stirrer 3 made of a solid bar-like body is simply cut in the direction perpendicular to the axis as the shape of the tip of the penetrating stirrer 3 Such a shape or a rounded shape may be used, as shown in FIGS. If the penetrating stirrer 3 is a sharp shape with the tip of the penetrating stirrer 3 made of a solid bar-like body cut diagonally, the opening opening rupture portion 2db for introduction of the storage compartment 2d is obtained. Can be surely pushed through, which is preferable.

  Then, on the front end side of the penetrating stirrer 3, as shown in FIGS. 1 to 4, a storage thin rod-like part 3 b having a cross section smaller in cross-sectional area than the rear end side and having the same cross section up to the front end. And the second component B is stored in the space between the outer peripheral surface of the storage rod-like portion 3b of the penetrating stirrer 3 and the inner peripheral surface of the storage compartment 2d of the plunger 2. In addition, it is preferable that the opening breaking portion 2db for introduction of the storage compartment 2d of the plunger 2 can be surely broken even with a weak pressing force, and the storage compartment 2d of the plunger 2 is relatively small in sliding distance. Therefore, the introduction opening break portion 2db of the storage compartment 2d can be quickly broken, which is preferable.

  And in the aspect in which such a thin bar-like part 3b for storage is formed, the thin bar-like part 3b for storage of the penetrating stir bar 3 is the second press of the penetrating stir bar 3 as shown in FIGS. When the portion 3a is pressed toward the distal end and the distal end abuts on the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or is penetrated to the vicinity of the inner surface of the distal end, the rear end of the storage rod portion 3b is a plunger. 2 is formed in such a length as to reach the vicinity of the opening opening break portion 2db of the storage compartment 2d, and the opening opening break portion 2db of the storage compartment 2d of the plunger 2 is pushed by the thin rod-like portion 3b for storage. If the cross-sectional area of the position to be broken is formed slightly larger than the cross-sectional area of the storage rod-like portion 3b, the capsule hardly leaves the second component B stored in the storage compartment 2d of the plunger 2. Reliably introduced into the mixing compartment 1b of the main body 1 This is not only preferable, but also because the cross-sectional area of the opening opening breaking portion 2db of the storage compartment 2d of the plunger 2 is slightly larger than the cross-sectional area of the storage rod-like portion 3b. When the mixture C mixed and kneaded is discharged by pressing the first pressing portion 2b to the tip side, the mixture C does not flow back into the storage compartment 2d of the plunger 2, so that the mixture kneaded. It is preferable that the mixture C can be used without waste.

  Further, as shown in FIGS. 7 and 8, the front end side of the through stirring bar 3 is formed into a cylindrical shape that is obliquely cut off from the front end of the solid through stirring bar 3 and the storage compartment 2d of the plunger 2 is formed. 9 and 10 may be formed of a flexible material that can be pushed through the opening opening breaking portion 2db and crushed when coming into contact with the inner surface of the front end of the mixing compartment 1b of the capsule body 1. As shown in the drawing, a sliding thin rod-like portion 3c having a cross section whose cross-sectional area is smaller than that of the rear end side is formed on the leading end side of the through stirring rod body 3, and the sliding thin rod-like portion 3c has a transverse cross section. The outer periphery has the same shape as the outer periphery of the cross section of the penetrating stirrer 3 and has a cylindrical shape with its tip portion cut obliquely. Located in a state protruding from the tip of the part 3c, the storage compartment of the plunger 2 A break-through portion 3d configured to slide to the rear end side when the 2d introduction opening break portion 2db is pushed through and comes into contact with the inner surface of the front end of the mixing compartment 1b of the capsule body 1 is externally fitted. For example, the introduction opening breaking portion 2db of the storage compartment 2d of the plunger 2 can be reliably broken even with a weak pressing force, which is preferable, and the tip of the penetrating stirring rod 3 is mixed with the capsule body 1 Since it can be surely infiltrated until it comes into contact with the inner surface of the front end in the compartment 1b, the mixing and kneading efficiency can be remarkably improved and the inner surface of the front end of the mixing compartment 1b of the capsule body 1 and the penetrating stirring rod 3 is in contact with the leading end of the capsule body 1, so that the mixture C in the mixing compartment 1b of the capsule body 1 can be pushed out in a state where it does not remain in the mixing compartment 1b.

  The rear end of the penetrating stir bar 3 has a second pressing portion 3a that is pressed toward the tip side. As the second pressing portion 3a, the penetrating stir bar 3 is pressed toward the tip side. Any shape can be used, for example, as shown in FIGS. 1 and 3 to 5, the rear end of the penetrating stirrer bar 3 simply made of a solid bar is cut in a direction perpendicular to the axis. Although not shown in the figure, the cross section is larger than the cross section of the penetrating stir bar 3 that slides in the storage compartment 2d of the plunger 2. In the case of the formed second pressing portion 3a, the penetrating stirrer 3 is pressed to the tip side, and the tip breaks the opening opening rupture portion 2db for introduction of the storage compartment 2d of the plunger 2 to remove the second component B. When the capsule body 1 is introduced into the mixing compartment 1b of the capsule body 1 and is further slid to the tip side, the penetration stirring rod In a state in which the third tip is allowed to penetrate to the tip or distal end near the inner surface thereof contacts the inner surface of the mixing compartment 1b of capsule body 1, preferably able to position regulating so as not to be any more slides distally.

  4 is a slidable shape in the through hole 2e for the stirring rod of the plunger 2, and the plunger is in a state where the tip abuts on the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or enters the vicinity of the inner surface of the tip. 2 is a stirring-only rod inserted into the through-hole 2e for the stirring rod, and the plunger is formed at the tip of the penetration stirring rod 3 by pressing the second pressing portion 3a of the penetration stirring rod 3 toward the tip side. 2 breaks through the opening breaking portion 2db for introduction of the storage compartment 2d of 2 to introduce the second component B into the mixing compartment 1b of the capsule body 1, and the tip of the penetrating stirring bar 3 is the mixing compartment of the capsule body 1 After being brought into contact with the inner surface of the tip end of 1b or being intruded to the vicinity of the inner surface of the tip end, a rotational force is applied to the rotational force transmission engaging portion 2c of the plunger 2, whereby the plunger 2 changes its central axis. Rotates inside the capsule body 1 as the center When swung, the stirring-only rod 4 with its penetrating stirring rod 3 protruding from the tip of the plunger 2 is integrated with the plunger 2 and the penetrating stirring rod 3, and the plunger 2 is mixed in the mixing compartment 1b. The first component A and the second component B in the mixing compartment 1b are directly agitated and mixed and kneaded as a mixture C by being rotated so as to revolve around the central axis.

  As shown in FIGS. 1 to 6, the penetrating stirring bar 3 has a shape that can be slidably inserted into the stirring bar through hole 2 e of the plunger 2. It is only necessary to have a shape corresponding to the cross section of the hole 2e, and the length in the longitudinal direction of the penetrating stirrer 3 is the initial value before the plunger 2 is pressed toward the tip in the capsule body 1. In the state where the tip is in contact with the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or has entered the vicinity of the inner surface of the front end of the capsule body 1, at least a part of the through hole for the stirring rod of the plunger 2 is located. It is only necessary to have a length equal to or longer than the length inserted in 2e.

  Reference numeral 5 denotes a capsule body 1 that is fixed or attached to the distal end portion of the capsule body 1. When the first pressing portion 2b of the plunger 2 is pressed toward the distal end side, the capsule body 1 is opened by the rod-shaped protrusion 2a. 1a is a nozzle that discharges a mixture C in which the first component A and the second component B in the mixing compartment 1b of the capsule body 1 are mixed and kneaded. This is for directly administering the mixture C in the mixing compartment 1b to be discharged to the site to be repaired by the patient.

  This nozzle 5 may be anything as long as it can discharge the mixture C in the mixing compartment 1b discharged from the broken opening opening break portion 1a of the capsule body 1 to a site to be repaired by the patient. For example, as shown in FIG. 1 and FIG. 3 to FIG. 5, the flow path inside thereof covers the discharge opening rupture portion 1 a of the capsule body 1 and has a shape that is reduced in diameter toward the tip. It can be illustrated.

  The nozzle 5 may be a nozzle that is fixed in advance to the distal end of the capsule body 1 or a nozzle that is attached to the distal end of the capsule body 1, or that is integral with the distal end of the capsule body 1. It may be. When the nozzle 5 is attached to the distal end portion of the capsule body 1, the nozzle 5 may be rotatable around the central axis of the capsule body 1 at the distal end portion of the capsule body 1.

Next, the usage method of the capsule for tooth restoration materials which concerns on this invention of such a structure is demonstrated.
First, as a preparation, the capsule for tooth restoration material according to the present invention contains the first component A in the mixing compartment 1b of the capsule body 1 and the storage compartment 2d of the plunger 2 as shown in FIG. The assembly operation is performed so that the second component B is stored in the container.

  In this operation, for example, the first component A is first stored in the mixing compartment 1b of the capsule body 1, and then the plunger 2 is inserted into the capsule body 1 from the rear end side, and then the storage compartment 2d of the plunger 2 is stored. After the second component B is stored in the insertion port 2da at the rear end, the penetration stirring bar 3 is inserted into the storage compartment 2d from the front end side of the insertion port 2da at the rear end, and then the plunger 2 is further inserted. The stirring rod 4 is inserted into the stirring rod through-hole 2e until the tip of the stirring rod 4 abuts on the inner surface of the mixing compartment 1b of the capsule body 1 or enters the vicinity of the inner surface of the tip. Finally, the nozzle 5 is fixed or attached to the tip of the capsule body 1.

  These series of assembly operations are usually performed in a factory, and the order of these series of assembly operations may be changed.

  Further, in these series of assembly operations, the tip of the stirring-only bar 4 is brought into contact with the inner surface of the front end of the mixing compartment 1b of the capsule body 1 from the rear end opening of the through-hole 2e for the stirring bar of the plunger 2 or Part of the procedure for fitting until the vicinity of the inner surface of the tip is inserted is omitted, and the tip of the stirring-only bar 4 comes into contact with the inner surface of the mixing compartment 1b of the capsule body 1 or the inner surface of the tip. Plunger in a state where it has not completely penetrated to the vicinity, that is, in a state where the tip of the stirring-only rod 4 has slightly penetrated into the mixing compartment 1b of the capsule body 1 or has entered only the through-hole 2e for the stirring rod of the plunger 2 The operation of fitting the stirring rod 4 into the through-hole 2e for the stirring rod 2 may be completed before shipment. In such a case, the operator will eventually put the stirring rod 4 behind the stirring rod 4 at the time of use. End to tip There after pressing until the state has penetrated to the distal end or the tip near the inner surface in contact with the inner surface of the mixing compartment 1b of capsule body 1, may be performed a series of operations to be described later. In this case, the rear end of the stirring-only rod 4 is pushed toward the tip until the tip abuts against the inner surface of the front end of the mixing compartment 1b of the capsule body 1 or enters the vicinity of the inner surface of the tip. The operation to do is omitted in the following description.

  After preparing the capsule for a tooth restoration material according to the present invention, first, the second pressing portion 3a at the rear end of the penetrating stirrer bar 3 is pressed toward the front end side, so that the plunger is formed at the tip of the penetrating stirrer bar 3. The second opening B is introduced into the mixing compartment 1b of the capsule body 1 by pushing through the opening opening breaking portion 2db of the storage compartment 2d of 2 and the tip of the penetrating stirring rod 3 is the mixing compartment of the capsule body 1 An operation is performed to contact the inner surface of the tip of 1b or to enter the vicinity of the inner surface of the tip.

  Specifically, when the second pressing portion 3a at the rear end of the penetrating stirring bar 3 is pressed toward the tip, first, the tip of the penetrating stirring bar 3 is moved from the state shown in FIG. When it slides to the tip side and reaches the opening opening break 2db for the introduction of the storage compartment 2d of the plunger 2, the opening opening break 2db is pushed and opened at the tip, and the opening opening break 2db that opens. Thus, the second component B stored in the storage compartment 2d is pushed out and introduced into the mixing compartment 1b of the capsule body 1.

  Then, in this state, the second component B is introduced into the mixing compartment 1b of the capsule body 1 by pushing through the opening opening rupture portion 2db for introduction of the storage compartment 2d of the plunger 2 with the penetrating stirring rod 3 in this manner. Further, when the second pressing portion 3a at the rear end of the penetrating stirring bar 3 is pressed toward the tip side, the tip of the penetrating stirring bar 3 comes into contact with the inner surface of the distal end of the mixing compartment 1b of the capsule body 1 or in the vicinity of the inner surface of the tip. As shown in FIG. 4, the tip of the penetrating stirring rod 3 protrudes from the tip of the plunger 2 in the mixing compartment 1 b of the capsule body 1.

  Next, as shown in FIG. 3, the second component B is introduced into the mixing compartment 1 b of the capsule body 1 and the tip of the penetrating stirring rod 3 abuts on the inner surface of the tip of the mixing compartment 1 b of the capsule body 1. The first component A and the second component B are mixed in the mixing compartment 1b of the capsule body 1 by applying a rotational force to the rotational force transmitting engagement portion 2c of the plunger 2 in a state where the distal end inner surface is invaded. Is mixed and kneaded to obtain a mixture C.

  In this operation, when the plunger 2 is rotated around the center line in the capsule body 1 by applying a rotational force to the rotational force transmission engaging portion 2c of the plunger 2, the plunger 2 is rotated. In the mixing compartment 1b, the penetrating stirring rod 3 and the stirring-only rod 4 protruding from the tip of the plunger 2 in the mixing compartment 1b of the capsule body 1 revolve around the central axis of the plunger 2. The first component A and the second component B in the mixing compartment 1b are directly agitated in the mixing compartment 1b by the movement of the penetration stirring rod 3 or the stirring-only rod 4 in the mixing compartment 1b. Is mixed and kneaded.

  As described above, in the present invention, when the first component A and the second component B are mixed and kneaded, as shown in FIG. 3, the penetration stirring rod 3 protruding from the plunger 2 in the mixing compartment 1 b of the capsule body 1. Since the stirring-only bar 4 is rotated so as to revolve around the central axis of the plunger 2, the through-stirring bar 3 and the stirring-only bar 4 are used in the mixing compartment 1 b of the capsule body 1. Since a force that directly shears the one component A and the second component B is applied, the first component A and the second component B can be effectively and uniformly mixed and kneaded to obtain a high-quality mixture C. .

  Specifically, for example, as shown in FIGS. 5 and 6, the rotational force transmitting engagement portion 2 c of the plunger 2 is composed of a plurality of concave portions and / or convex portions provided at the rear end of the plunger 2. In this case, a plurality of concave portions and / or convex portions that can be engaged with the plurality of concave portions and / or convex portions of the rotational force transmission engaging portion 2c are mounted on the shaft of the drive means, A rotational force is applied to the rotational force transmission engaging portion 2c by inserting and engaging the convex and / or concave portions of the joint member with the plurality of concave portions and / or convex portions of the rotational force transmission engaging portion 2c. Further, as shown in FIGS. 1 to 4, the rotational force transmission engaging portion 2 c of the plunger 2 is provided at the rear end of the plunger 2 and at a position coincident with the central axis of the mixing compartment 1 b of the capsule body 1. In the case of a mode in which the cross section is composed of a concave part or convex part other than circular, A rotational force can be applied to the rotational force transmission engagement portion 2c by directly fitting the drive shaft of the drive means into the force transmission engagement portion 2c or by fitting an engagement member attached to the drive shaft of the drive means. That's fine.

  Thus, after the first component A and the second component B are mixed and kneaded in the mixing compartment 1b, the capsule body is finally pressed by the first pressing portion 2b of the plunger 2 as shown in FIG. 1, the plunger 2 is slid toward the tip, and the rod-shaped protrusion 2 a of the plunger 2 pushes and opens the discharge opening breaking portion 1 a of the capsule body 1, and the mixture C mixed and kneaded at the tip of the plunger 2 is mixed. What is necessary is just to administer directly to the site | part which should be restored | repaired through a nozzle 5 by extruding from the mixing compartment 1b, discharging from the discharge opening fracture | rupture part 1a.

It is a sectional side view for explanation which shows one example of a capsule for tooth restoration materials concerning the present invention. It is a back view for description of FIG. In the capsule for tooth restoration material shown in FIG. 1, the penetrating stirrer is pressed toward the tip side to push the opening breaker for introduction of the storage compartment of the plunger with the penetrating stirrer to mix the second component into the capsule body. It is side sectional drawing for description which shows the state which was introduced into the division chamber and penetrated the front-end | tip of a penetration stirring rod body to the tip inner surface vicinity in the mixing division chamber of a capsule main body. In the capsule for tooth restoration material shown in FIG. 3, the first component and the second component are passed through the stirring rod body and the stirring only in the mixing compartment of the capsule body by applying a rotational force to the rotational force transmitting engagement portion of the plunger. After mixing and kneading with the rod body, the mixture in the mixing chamber of the capsule body is removed from the discharge opening breakage portion of the capsule body opened by the rod-shaped protrusion of the plunger by pressing the first pressing portion of the plunger toward the tip side. It is explanatory side sectional drawing which shows the state discharged from the nozzle. It is side sectional drawing for description which shows the other Example of the capsule for tooth restoration materials which concerns on this invention. FIG. 6 is an explanatory rear view of FIG. 5. It is an explanatory perspective view which shows one example of the front end side of the penetration stirring rod body in the capsule for tooth restoration materials which concerns on this invention. It is a sectional side view for description of FIG. It is an explanatory side view which shows the other example of the front end side of the penetration stirring rod body in the capsule for tooth restoration materials which concerns on this invention. FIG. 10 is a side sectional view for explanation of FIG. 9.

Explanation of symbols

1 capsule body
1a Disrupted opening for discharge
1b Mixing compartment 2 Plunger
2a Rod projection
2b First pressing part
2c Rotational force transmission engaging part
2d storage compartment
2da insertion slot
2db introduction opening break
2e Through hole for stirring rod 3 Through stirring rod body
3a Second pressing part
3b Thin rod-shaped part for storage
3c Sliding rod-shaped part
3d Break-through part 4 Stirring bar 5 Nozzle A 1st component B 2nd component C Mixture

Claims (12)

Formed in the shape of a cylinder with a circular inner cross-section, the discharge opening rupture portion (1a) is formed on the tip side, and the mixing compartment (1b) containing the first component (A) is formed. Capsule body (1)
In the mixing compartment (1b), a cylindrical shape is rotatable in the capsule body (1) and the mixture (C) in the mixing compartment (1b) of the capsule body (1) can be pushed out. A rod-like protrusion (2a) for pushing and breaking the discharge opening breaking portion (1a) of the capsule main body (1) is projected at a substantially central position of the tip of the capsule body (1). The rear end includes a first pressing portion (2b) pressed toward the leading end side, and a rotational force transmitting engagement portion (2c) to which a rotational force for rotation within the capsule body (1) is applied. The rod-shaped protrusion (2a) from the central axis of the mixing compartment (1b) of the capsule body (1) at a position apart from the first pressing part (2b) and the rotational force transmission engaging part (2c) ) In the shape of the same cross section from the insertion opening (2da) opened at the rear end to the opening opening breaking portion (2db) on the front end side at a position that is more than the maximum thickness of The storage compartment (2d) formed parallel to the central axis of the mixing compartment (1b) of the main body (1) and containing the second component (B) has the same cross section from the rear end to the tip. A plunger (2) in which a through hole for a stirring bar (2e) formed in parallel with the central axis of the mixing compartment (1b) of the capsule body (1) is formed in a shape formed;
The storage compartment (2d) of the plunger (2) has a slidable shape, and when the second pressing portion (3a) at the rear end is pressed toward the tip, the plunger (2) is introduced at the tip. The second component (B) is introduced into the mixing compartment (1b) of the capsule body (1) by pushing through the opening breaking portion (2db) for use, and the tip thereof is the mixing compartment ( A penetrating stirring bar (3) fitted in the storage compartment (2d) of the plunger (2) so as to abut against the inner surface of the tip of 1b) or to penetrate into the vicinity of the inner surface of the tip;
The through hole (2e) for the stirring rod of the plunger (2) has a slidable shape, and its tip abuts on the tip inner surface of the mixing compartment (1b) of the capsule body (1) or its tip. A stirring rod (4) which is inserted into the stirring rod through hole (2e) of the plunger (2) in a state where it has penetrated to the vicinity of the inner surface;
Fixed or attached to the distal end of the capsule body (1), when the first pressing portion (2b) of the plunger (2) is pressed toward the distal end, the plunger (2) is opened by the rod-shaped protrusion (2a). The first component (A) and the second component (B) in the mixing compartment (1b) of the capsule body (1) are mixed and kneaded from the discharge opening rupture portion (1a) of the capsule body (1). A nozzle (5) for discharging the blended mixture (C);
A capsule for tooth restoration material, characterized by comprising:   The capsule for tooth restoration materials according to claim 1, wherein the plunger (2) is provided with a plurality of storage compartments (2d) and / or a plurality of stirring rod through holes (2e).   The storage compartment (2d) of the plunger (2) and the through hole (2e) for the stir bar are formed so that the distances from the central axis to the central axis of the plunger (2) are different from each other. The capsule for tooth restoration materials of Claim 1 or Claim 2.   When the storage compartment (2d) of the plunger (2) and the through hole (2e) for the stirring rod are viewed from the rear end side of the plunger (2), they are equally angled with respect to the central axis of the plunger (2). The capsule for a tooth restoration material according to claim 3, which is perforated at such a position.   The storage compartment (2d) and / or the stir bar in which the plunger (2) is drilled so as to be positioned in the vicinity of the outer peripheral edge of the plunger (2) when viewed from the rear end side of the plunger (2) The capsule for tooth restoration materials according to any one of claims 1 to 4, which has a through hole (2e) for use.   On the front end side of the penetrating stir bar (3), there is formed a thin bar-like portion (3b) for storage having a cross-sectional area smaller than the rear end side and the same cross-section up to the front end. The second component (B) is placed in the space between the outer peripheral surface of the storage rod-like portion (3b) of the penetrating stirring rod (3) and the inner peripheral surface of the storage compartment (2d) of the plunger (2). The capsule for tooth restoration material of any one of Claim 1 to 5 accommodated.   The thin rod-like portion (3b) for storing the penetration stirring rod (3) is pushed toward the tip side of the second pressing portion (3a) of the penetration stirring rod (3), and the tip of the penetration stirring rod (3) is the capsule body (1). The rear end of the storage rod-like portion (3b) of the storage compartment (2d) of the plunger (2) is brought into contact with the inner surface of the front end of the mixing compartment (1b) or penetrated to the vicinity of the inner surface of the tip. It is formed in such a length as to reach the vicinity of the opening rupture portion (2db) for introduction, and the opening rupture portion (2db) for introduction of the storage compartment (2d) of the plunger (2) is the thin rod-like portion for storage. The capsule for a tooth restoration material according to claim 6, wherein a cross-sectional area at a position where it can be pushed and broken in (3b) is formed to be slightly larger than a cross-sectional area of the accommodating thin rod-like portion (3b).   The front end side of the penetrating stir bar (3) has a cylindrical shape that is obliquely cut off at the end of the solid penetrating stir bar (3), and the introduction of the storage compartment (2d) of the plunger (2) It is formed of a flexible material that can be pushed through the opening breaking portion (2db) and that is crushed when coming into contact with the inner surface of the front end of the mixing compartment (1b) of the capsule body (1). The capsule for tooth restoration materials according to any one of claims 1 to 5.   A sliding rod-like portion (3c) having a cross section whose cross-sectional area is smaller than that of the rear end side is formed on the front end side of the penetration stirring rod body (3), and the sliding rod-like portion (3c) The outer periphery of the cross section has the same shape as the outer periphery of the cross section of the penetrating stirrer (3) and the tip of the tube is obliquely cut out. The capsule body (1) is located in a state in which the portion protruded from the tip of the sliding rod-like portion (3c), and pushes through the opening opening break (2db) of the storage compartment (2d) of the plunger (2). 6. A piercing portion (3d) configured to slide toward the rear end when it contacts the inner surface of the front end of the mixing compartment (1b) is externally fitted. The capsule for a tooth restoration material according to item 1.   The rotational force transmitting engagement portion (2c) of the plunger (2) comprises a plurality of concave portions and / or convex portions provided at the rear end of the plunger (2). The capsule for tooth restoration material of Claim 1.   Crossing provided at a position where the rotational force transmitting engagement portion (2c) of the plunger (2) coincides with the central axis of the mixing compartment (1b) of the capsule body (1) at the rear end of the plunger (2). The capsule for tooth restoration materials according to any one of claims 1 to 9, wherein the surface is formed of a concave portion or a convex portion other than a circle.   The capsule for tooth restoration materials according to any one of claims 1 to 11, wherein the rotational force transmission engaging portion (2c) of the plunger (2) also serves as the first pressing portion (2b).

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