公开(公告)号：US20200297945A1

公开(公告)日：2020-09-24

申请号：US16064395

申请日：2016-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： DAVID J. COTTENDEN ,  JOHN P. BUNTING ,  CHRISTOPHER B.J. GROOMBRIDGE ,  WILLIAM T. RICHARDSON

IPC: A61M15/00

Abstract: A dose release firing system (101) for use in a medicinal inhaler (100). The firing system can include a plunger (103), and a stored energy device (109) configured to drive the plunger from a first position to a second position. The firing system can further include a guideway (121) and a projection (114) dimensioned to be received in the guideway, the guideway or the projection being fixedly coupled to the plunger. At least a portion of the guideway can have a helical shape, including a first portion with a first helix angle, and a second portion with a second helix angle, the second helix angle being less than the first helix angle. The projection and the guideway can be movable with respect to one another to cause the projection to be cammed along the guideway when the stored energy device drives the plunger to move from the first position to the second position.

公开(公告)号：US20190111220A1

公开(公告)日：2019-04-18

申请号：US16090296

申请日：2017-04-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WILLIAM T. RICHARDSON ,  ROBERT MAY ,  CHRISTOPHER B.J. GROOMBRIDGE

IPC: A61M15/00

Abstract: A refill assembly (129) for use in a medicinal inhaler (100). The refill assembly includes a patient port (110), and an adapter (118) configured to cause a dose of medicament to be released. The adapter is movable between a first position in which a dose of medicament is not released and a second position in which a dose of medicament is released. The refill assembly further includes a lockout mechanism positioned to lock the adapter in its first position, and a lockout override actuator (223). The lockout override actuator is movable between a first position in which the lockout mechanism is in a first locked state, and a second position in which the lockout mechanism is in a second unlocked state and the adapter is movable from its first position to its second position even when the refill assembly is not coupled to a reusable assembly.

公开(公告)号：US20190111221A1

公开(公告)日：2019-04-18

申请号：US16090300

申请日：2017-04-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WILLIAM T. RICHARDSON ,  ROBERT MAY ,  CHRISTOPHER B.J. GROOMBRIDGE

IPC: A61M15/00

Abstract: A refill assembly (129) for use in a medicinal inhaler (100). The refill assembly includes a patient port (110), and an adapter (118) configured to cause a dose of medicament to be released. The adapter is movable between a first position in which a dose of medicament is not released and a second position in which a dose of medicament is released. The refill assembly further includes a lockout member (117) movable between (i) a first (locked) position in which the adapter is not movable from its first position to its second position, and (ii) a second (unlocked) position in which the adapter is movable from its first position to its second position.

公开(公告)号：US20190022339A1

公开(公告)日：2019-01-24

申请号：US16064413

申请日：2016-12-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WILLIAM T. RICHARDSON ,  JOHN P. BUNTING ,  PETER D. HODSON ,  CHRISTOPHER B.J. GROOMBRIDGE ,  DAVID J. COTTENDEN

IPC: A61M15/00 ,  B65D83/16 ,  B65D83/38

Abstract: An auto-reset dose release firing system (101) and a method of using same. The system can include an a stored energy device (109); a first plunger (103) movable between first, second, and third positions, the first plunger configured to be operatively coupled to a medicament canister (51); and a second plunger (104) movable between first and second positions; the first and second plunger being movable with respect to one another and shaped to define an evacuable chamber (185) therebetween. The first plunger and the second plunger can move together from their respective first positions to their respective second positions, due to a reduced pressure in the chamber, to cause a dose release valve (54) to fire. After firing, air can be allowed to move into the chamber to allow the first plunger to move with respect to the second plunger to its third position to allow the dose release valve to reset.

公开(公告)号：US20190001085A1

公开(公告)日：2019-01-03

申请号：US16064433

申请日：2016-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： DAVID J. COTTENDEN ,  CHRISTOPHER G. BLATCHFORD ,  WILLIAM T. RICHARDSON ,  ROMAIN U.G. GUION ,  IAIN G. McDERMENT ,  CHRISTOPHER B.J. GROOMBRIDGE ,  SIMON L. CALCUTT

IPC: A61M15/00

Abstract: A medicinal inhaler. The inhaler can include a housing, and an air flow path defined by at least partially the housing and including an air inlet and an air outlet. The inhaler can further include a flow governor and a breath-actuated dose release firing system. The flow governor can be positioned in the air flow path between the air inlet and the air outlet to govern air flow in the air flow path to a governing volumetric flow rate. The breath-actuated dose release firing system can be located in the housing and can be configured to release a dose of medicament at a firing volumetric flow rate less than the governing volumetric flow rate.