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    Nozzle head, hand piece and powder jet device for applying a dental material
    32.
    发明授权
    Nozzle head, hand piece and powder jet device for applying a dental material 有权

    公开(公告)号：US09888980B2

    公开(公告)日：2018-02-13

    申请号：US14652393

    申请日：2013-12-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas J. Boehm

    IPC: A61C3/025 ,  A61C1/08 ,  A61C17/02

    CPC classification number: A61C3/025 ,  A61C1/087 ,  A61C17/02

    Abstract: A nozzle head (12) for a powder jet device (10) for use in applying dental material, the nozzle head (12) comprising: a first portion (16) and a second portion (18) transitioning into one another; the first portion (16) adjacent a first end (20) of the nozzle head (12) having a coupling (22) for removably connecting the nozzle head (12) to a hand piece (14) of the powder jet device (10); the second portion (18) adjacent a second end (26) of the nozzle head (12) forming a nozzle outlet (28) for the dental material; the second portion (18) comprising at least a first fluid channel (30) which is formed between the nozzle outlet (28) and a channel inlet (32); wherein the channel inlet (32) is arranged at the transition (34) between the first portion (16) and the second portion (18) between the nozzle outlet (28) and the coupling (22).

    PLUNGER FOR A SYRINGE AND METHOD OF MAKING SUCH A PLUNGER
    33.
    发明申请
    PLUNGER FOR A SYRINGE AND METHOD OF MAKING SUCH A PLUNGER 审中-公开

    公开(公告)号：US20170354786A1

    公开(公告)日：2017-12-14

    申请号：US15689590

    申请日：2017-08-29

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas J. Boehm ,  Alexander Walter

    IPC: A61M5/315 ,  A61C9/00 ,  A61C5/62

    CPC classification number: A61M5/31513 ,  A61C5/62 ,  A61C9/0026

    Abstract: A plunger for advancing a substance in a syringe toward a dispensing nozzle. The plunger has a plunger rod and a seal and being formed of a plastic composition. The plastic composition comprises a polymer and a filler which is non-uniformly distributed within the polymer to provide the plunger rod and the seal with different mechanical properties depending on the filler content in the portions of the plastic composition plunger forming the rod and the seal. The invention preferably provides a dental syringe which can be conveniently used, and further helps minimizing costs in the manufacturing of the dental syringe.

    A CAPSULE FOR MIXING AND DISPENSING A DENTAL MATERIAL
    35.
    发明申请
    A CAPSULE FOR MIXING AND DISPENSING A DENTAL MATERIAL 审中-公开
    用于混合和分配牙科材料的胶囊

    公开(公告)号：US20170042640A1

    公开(公告)日：2017-02-16

    申请号：US15303612

    申请日：2015-04-06

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas J. Boehm ,  Marc Peuker ,  Peter Braun ,  Dieter Poschmann ,  Juergen Hella

    IPC: A61C5/06

    Abstract: A capsule for mixing and dispensing a dental material which has a capsule body and a cavity extending into the capsule body. The cavity is closed by a liquid container. The liquid container has a cartridge forming a channel that extends between a front opening and a rear opening of the cartridge. Further the cartridge has a front foil closing the front opening and a rear foil closing the rear opening. The front foil is attached at the cartridge along a closed path circumferentially around the front opening. The front foil and the cartridge in at least a partial area of the circumferential path are separably sealed with each other, thus defining an openable valve through that path. The capsule has further a piston received in the channel of the cartridge and arranged such that the liquid is enclosed in the cartridge between the front foil and the piston. The capsule facilitates the preparation of a two-component dental material.

    Abstract translation: 一种用于混合和分配牙科材料的胶囊，其具有胶囊主体和延伸到胶囊主体中的空腔。 空腔由液体容器封闭。 液体容器具有形成在筒的前开口和后开口之间延伸的通道的盒。 此外，盒具有封闭前开口的前箔和封闭后开口的后箔。 前箔沿着围绕前开口周向的封闭路径连接在墨盒上。 在圆周路径的至少一部分区域中的前箔和盒可彼此分离地密封，从而通过该路径限定可打开的阀。 胶囊还具有容纳在药筒的通道中的活塞，并且布置成使得液体被包封在前箔和活塞之间的药筒中。 胶囊有助于制备双组分牙科材料。

    CARTRIDGE, A PISTON AND A SYRINGE COMPRISING THE CARTRIDGE AND THE PISTON
    38.
    发明申请
    CARTRIDGE, A PISTON AND A SYRINGE COMPRISING THE CARTRIDGE AND THE PISTON 审中-公开

    公开(公告)号：US20200289237A1

    公开(公告)日：2020-09-17

    申请号：US16889341

    申请日：2020-06-01

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas J. Boehm

    IPC: A61C5/68 ,  A61C5/64

    Abstract: A cartridge and a piston for storing and dispensing a two-component dental material. The cartridge and the piston have a cross-section which substantially correspond to a D-shape in which the perimeter of the D-shape is defined by a plurality of circle segments only. At least two of the circle segments are based on different radii. The invention helps maximizing the time period over which a dental material can be stored in the compartment.

    A SYSTEM COMPRISING A STATIC MIXER AND A DISPENSING DEVICE FOR DENTAL MATERIALS
    40.
    发明申请
    A SYSTEM COMPRISING A STATIC MIXER AND A DISPENSING DEVICE FOR DENTAL MATERIALS 审中-公开

    公开(公告)号：US20180153645A1

    公开(公告)日：2018-06-07

    申请号：US15737009

    申请日：2016-06-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Andreas J. Boehm

    IPC: A61C5/68 ,  A61C5/64 ,  B01F5/06

    Abstract: A system which has a static mixer and which contains a dental material. The static mixer has a mixing barrel that extends along a longitudinal axis and, accommodated therein, a cascade of mixing elements. Mixing elements have an outer diameter D of between 1.5 mm and 1.6 mm. The barrel has an inner diameter corresponding to the outer diameter of the mixing elements. The system helps minimizing any residual dental material in the mixer and minimizing forces for extruding the dental material through the mixer.

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