POWDER INHALER

• US 20160158470A1
• Filed: 07/16/2013
• Published: 06/09/2016
• Est. Priority Date: 07/16/2013
• Status: Abandoned Application

• Current Assignee: Eric Zembrod, Victor Esteve
• Original Assignee: Eric Zembrod, Victor Esteve
• Inventors: Esteve, Victor, Zembrod, Eric
• Application Number:
  US14/906,123
• Publication Number:
  US 20160158470A1
• Time in Patent Office: Days
• CPC Class Codes: A61M 11/003 by passing the aerosol trough sieves or filters
• CPC Class Codes: A61M 15/0023 retractable
• CPC Class Codes: A61M 15/0025 with caps
• CPC Class Codes: A61M 15/003 using capsules, e.g. to be perforated or broken-up
• CPC Class Codes: A61M 15/0035 Piercing means
• CPC Class Codes: A61M 15/0041 with movable piercing or cutting means
• CPC Class Codes: A61M 15/0063 Storages for pre-packed dosages
• CPC Class Codes: A61M 2202/064 Powder
• CPC Class Codes: A61M 2206/16 Rotating swirling helical flow, e.g. by tangential inflows
• CPC Class Codes: A61M 2206/18 Coaxial flows, e.g. one flow within another
• CPC Class Codes: A61M 2206/20 having means for promoting or enhancing the flow, actively or passively

Abstract

Powder inhaler, consisting of a base housing (1), snap-in capsule receptacle (2a) mounted together with a lid (2b); a moveable mouthpiece (4) with cap (5) and guided by lateral stems (6) and vertical guide (7); a perforation device (10) for opening the capsule; a flow guide tube, centralized and housed in the mouthpiece and on the guide; a de-agglomeration chamber formed above the housing of the capsule; a vertical passage formed between said de-agglomeration chamber and the upper edge of the mouthpiece; a secondary air intake point positioned between the walls of the capsule receptacle and the base housing which in turn has one or two air intake points with a pocket and include one or more secondary air flow passages.

Claims

1. POWDER INHALER, consisting of:

a capsule based dry powder inhaler which capsule (C) works in horizontal position.

base housing (1) with cross section that is usually oval and completely hollow;

a snap-in capsule receptacle (2A) mounted pivotally within the lower half part of the base housing (1) together with a lid (2B) and with sufficient means to be pivoted outwards and expose its slot-in cradle (3) capsule housing (C) containing powdered inhalant medication, and means for such capsule receptacle to return to the initial position aligned with the longitudinal axis of the base housing (1);

a moveable mouthpiece (4) affixed on the upper part of the base housing (1), with this mouthpiece having a cap on the outside (5), while on the lower side it has lateral stems (6) slidably coupled on a vertical guide (7), something tubular, where said mouthpiece (4) can be moved vertically downwards or outwards in combination with helical springs (8 and 9), in which the first downward movement is realized by manual pressure that exceeds the strength of the springs, and the return movement upwards is due to the force of this helical springs (8 and 9);

a perforation device (10) for opening the capsule (C), affixed to the inner side of the mouthpiece (4), which device, in addition to being moved together with the mouthpiece (4), also has means consisting of a pair of vertical needles (11) whose lower sharp points are positioned to radially perforate the ends of the capsule (C) forming small openings for the outflow of the powdered medication;

a flow guide tube (12), centralized and housed on the inner side of the mouthpiece (4) and the guide (7), with the upper edge ending practically within said mouthpiece (4), adjusting the latter by a flange (13), while the lower part has a sieve-like structure (14) that, in its turn, forms the roof of the de-agglomeration chamber (15) formed above the housing (3) of the capsule (C), consequently, between said de-agglomeration chamber (15) and the upper edge of the mouthpiece (4) a vertical passage (16) is formed for the air flow and the medication; and

said de-agglomeration chamber (15) has a tangential secondary air intake point (17) positioned between the walls of the capsule receptacle (2A) and the base housing (1) which in turn has one or two primary air intake points (18), with a pocket (19);

characterized by the fact that that it includes one or more false air inlets (20), apart from the passage (16) and that provide an additional or secondary air flow of aspiration that is formed with the air captured in the air pocket (19) and that moves into the inhaler by the primary air inlets (18), this secondary air flow rises concurrently with the main air flow that conducts the medication from the de-agglomeration chamber (15) and, in the mouthpiece portion (4), the additional flow is mixed with the main inhalation flow.