公开(公告)号：US10675452B2

公开(公告)日：2020-06-09

申请号：US15124400

申请日：2015-03-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andreas Syrek ,  Marc Peuker ,  Mathias Bertl ,  Martin Preininger ,  Emir Jelovac ,  Ryan P. Simmers

IPC: A61M37/00 ,  A61B5/00

Abstract: A micro-needle device for delivering a dental local anesthetic that includes a micro-needle array and a hollow spheroid shaped container. The micro-needle array has a base and two or more elongate micro-needles. The elongate micro-needles have an interior surface defining an opening through the elongate micro-needle and the base has a first major surface and a second major surface through which the opening of the elongate micro-needle passes to provide a passage across the base. The hollow spheroid shaped container includes an inside surface, where the first major surface of the base and the inside surface of the hollow spheroid shaped container define a volume that is in fluid connection with each opening of the two or more of the elongate micro-needle. This allows the dental local anesthetic to flow from the volume of the micro-needle device through the opening of the two or more of the elongate micro-needle.

公开(公告)号：US20180338816A1

公开(公告)日：2018-11-29

申请号：US15778555

申请日：2016-11-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Helmut Pauser ,  Marc Peuker ,  Mathias Bertl ,  Bruce R. Broyles

IPC: A61C5/62

Abstract: A dispenser for a pasty material has a container, a cover and a handle. The dispenser is operable by twisting the cover and the handle relative to each other in a dispensing direction for dispensing material and, alternatively, in an opposite closing direction. The container having an outlet for the material and the cover having a dispensing opening. The container and the cover are arranged relative to each other for a rotation between a closed position, in which the cover closes the outlet, and an open position, in which the dispensing opening opens the outlet. A first engagement mechanism is provided for enabling the container and the handle to engage with each other in at least one angular position during twisting in the closing direction. The first engagement mechanism further forming a freewheel mechanism with respect to a rotation in the dispensing direction. The first engagement mechanism has a first snap-stop for providing the engagement between the handle and the container and for impeded disengagement when engaged. A second engagement mechanism is provided for enabling the rotation of the container and the cover in an angular range between the closed position and the open position and restricting a rotation outside that range. The second engagement mechanism has a second snap-stop for providing the restriction between the container and the cover with respect to a twisting toward the dispensing direction and providing for an impeded disengagement when engaged in the open position. The first snap-stop provides for an impeding force to be overcome for disengagement and the second snap-stop provides for a snap-in force to be overcome for engagement. The first and second snap-stop are configured such that the impeding force is greater than the snap-in force.

公开(公告)号：US10016257B2

公开(公告)日：2018-07-10

申请号：US14785029

申请日：2014-04-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Helmut Pauser ,  Marc Peuker ,  Mathias Bertl ,  Bruce R. Broyles

IPC: A61C5/04 ,  A61C5/06 ,  A61C1/00 ,  A61C5/50 ,  A61C5/62

CPC classification number: A61C5/62 ,  A61C1/0061 ,  A61C5/50

Abstract: A pen-like dispenser for dispensing a dental material has a handle and a cover which are attached for rotation relative to each other about a longitudinal axis of the dispenser, and a cartridge for holding the dental material and a screw plunger for extruding the dental material from the cartridge by screwing action. The cartridge and the cover in combination form a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes a dispensing outlet of the cartridge, and a dispensing position, in which an opening in the cover opens the dispensing outlet of the cartridge. A relative rotation between the screw plunger and the handle about the longitudinal axis is restricted, and a relative rotation between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise.