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Unit dose dispensing device

A unit dose, discharge device technology, applied in the direction of drug devices, control device energy, therapeutic insufflators, etc., can solve the problems of limiting potential applications and high device costs

Inactive Publication Date: 2004-06-16
GLAXO GROUP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The potential applications of the device are limited by the high cost of the device since the entire device must be discarded after each use

Method used

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  • Unit dose dispensing device
  • Unit dose dispensing device
  • Unit dose dispensing device

Examples

Experimental program
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Embodiment Construction

[0027] The unit dose dispensing device shown in Figure 1 of the accompanying drawings comprises a nozzle part 2 with a unit dose of medicament to be dispensed, which is detachably fitted into a main body 4 which accommodates a user-operated nozzle for expelling a unit dose. device. After use, the used nozzle member 2 is detached from the main body 4, discarded, and replaced with a new nozzle member.

[0028] With careful reference to Figure 2, the nozzle member 2 comprises a housing 6 having an outlet orifice 8 at its outer end. The illustrated nozzle part 2 is intended in particular for intranasal administration and the housing 6 is thus dimensioned for this use. An inner sleeve 12 fixedly mounted in the housing 6 protrudes from the lower end of the housing 6 to form a fixed portion 16 which is inserted into the main body 4 of the device to mount the nozzle part 2 to the main body 4, as will be described below. as described. The fixing portion 16 terminates in an outer loc...

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PUM

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Abstract

A device for dispensing a unit dose of substance comprises a nozzle assembly (2) including a container (24) housing a unit dose of the substance, and an outer body (4) to which the nozzle assembly (2) is releasably attached. The body (4) includes a system actuable to effect discharge of the substance from the nozzle assembly (2) and actuating means operable by a user to effect discharge. Preferably the discharge system comprises a spring-loaded air piston (68) actuable to inject air into the container (24) to cause discharge of the substance. In one embodiment a driving spring for the air piston is loaded with spring energy by the action of installing the nozzle assembly on the body, the driving spring therafter being held in a cocked state until operation of the actuating means by the user to effect release of the spring energy to cause discharge.

Description

technical field [0001] This invention relates to devices for dispensing unit doses of substances, such as pharmaceutical, medicinal, or therapeutic substances. In particular the invention relates to means for dispensing unit doses of substance to a body cavity. A particularly preferred form of the invention is intended for intranasal administration. Background technique [0002] In International Patent Application No. PCT / EP94 / 01859 (WO94 / 28956) a device for administering a drug from a capsule containing the drug is disclosed. The capsule is pressurized with sufficient pressure to open it, and the contents of the capsule are expelled through the discharge outlet in the form of a spray. The originally suggested device operates satisfactorily, but the device is relatively bulky and therefore inconvenient for a person to carry, eg in a shirt or jacket pocket. Furthermore, the device is suitable for refilling with a new capsule after use, but due to the mechanical properties ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M13/00A61B18/12A61B18/14A61M11/00A61M15/00A61N5/04
CPCA61M2205/073A61B2018/0066A61M2015/0036A61B18/14A61B18/1206A61B18/12A61M2202/064A61N5/04A61M2015/0041A61M15/0028A61M15/0036A61M15/0041
Inventor G·C·派克I·H·里德尔S·史密斯
Owner GLAXO GROUP LTD
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