(19)
(11)EP 2 626 099 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
03.09.2014 Bulletin 2014/36

(43)Date of publication A2:
14.08.2013 Bulletin 2013/33

(21)Application number: 13166884.0

(22)Date of filing:  13.04.2006
(51)Int. Cl.: 
A61M 15/00  (2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30)Priority: 15.04.2005 GB 0507711

(62)Application number of the earlier application in accordance with Art. 76 EPC:
06754742.2 / 1868674

(71)Applicant: Vectura Delivery Devices Limited
Chippenham, Wiltshire SN14 6FH (GB)

(72)Inventors:
  • Harmer, Quentin John
    Cambridge, Cambridgeshire CB5 9NJ (GB)
  • Clarke, Roger William
    Cambridge, Cambridgeshire CB4 9EZ (GB)
  • Eason, Stephen William
    Diss, Norfolk IP22 1RX (GB)
  • Meliniotis, Andreas Mark
    Cambridge, Cambridgeshire CB4 2QB (GB)

(74)Representative: Summersell, Richard John 
Vectura Ltd One Prospect West
Chippenham, Wilts SN14 6FH
Chippenham, Wilts SN14 6FH (GB)

  


(54)Blister piercing element for dry powder inhaler


(57) A blister piercing element (75) for puncturing the lid of a blister containing a dose of medicament for inhalation by a user is disclosed. The piercing element comprises a body portion (33) having a surface (34), an outlet opening (37,38) in the surface for the passage of medicament entrained in an airflow out of the blister and, a piercing head (70) having a first portion (71) upstanding from said surface and a second portion (72) overhanging the opening that cuts a flap in a lid of a blister and pushes it away from the opening during insertion through said lid. The second portion extends laterally from an end of the first portion and the second portion comprises a primary cutting edge (77) formed at the free end of the second portion. The primary cutting edge is remote from the surface and has a tip at one end. The primary cutting edge is angled relative to the plane of a blister lid such that only said tip initially meets the blister lid to initiate a slit in the lid.