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Portable dry powder nasal cavity inhalation and drug delivery device

An inhalation drug delivery and portable technology, which is applied in the field of medical devices, can solve problems such as high pressure, patient discomfort, and inability to quantify and accurately administer drugs, and achieve the effect of reducing speed and improving discomfort

Inactive Publication Date: 2018-12-18
CHENGDU YITIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to design defects, the existing dry powder inhalation devices generally cannot be administered quantitatively and accurately, and when the drug is inhaled through the nasal cavity, the pressure of the drug entering the nasal cavity is too high, which brings discomfort to the patient

Method used

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  • Portable dry powder nasal cavity inhalation and drug delivery device
  • Portable dry powder nasal cavity inhalation and drug delivery device
  • Portable dry powder nasal cavity inhalation and drug delivery device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 1-3 As shown, a portable dry powder nasal cavity inhalation drug delivery device includes a connection seat 1, an air bag 2, a feeding device 3 and a spray head 4, and the air bag 2 and the spray head 4 are respectively connected to the opposite sides of the connection seat 1. The feeding device 3 is connected to the top surface of the connecting seat 1, the opposite side of the connecting seat 1 is provided with an airbag interface 11 and a nozzle interface 12, the top surface is provided with a feed port 13, and the interior is provided with an interface 11 with the airbag 1. The dust chamber 14 connected with the nozzle interface 12 and the feed port 13, the dust chamber 14 is provided with a multi-layer mesh partition 15 perpendicular to the bottom surface of the dust chamber 14 at one end of the nozzle interface 12; the feeding device 3 includes a transparent storage chamber 31, the transparent storage chamber 31 is provided with a scale, the lower ...

Embodiment 2

[0038] Such as figure 1 , 2As shown in and 4, the buffer device 42 includes a buffer column 421, and the outer wall of the buffer column 421 is densely covered with buffer protrusions 423, and the buffer protrusions 423 are mutually offset. One end of the buffer column 421 is connected to the A discharge gap is provided between the guide pipes 41 , and the other end of the buffer column 421 communicates with the outlet of the spray head 4 .

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Abstract

The invention discloses a portable dry powder nasal inhalation and drug delivery device, which comprises a connecting base, an air bag, a feeding device and a spray head. An air bag connector and a spray head connector are arranged on the opposite side surfaces of the connecting base. A feeding port is formed in the top surface of the connecting base. A dust raising chamber communicated with the air bag connector, the nozzle connector and the feeding port is arranged in the feeding port. One end, closer to the spray head connector and inside the dust raising chamber, is provided with a plurality of net-shaped partition layers perpendicular to the bottom surface of the dust raising chamber. The feeding device comprises a transparent material storage chamber. Scales are arranged on the transparent material storage chamber. A discharging port is formed in the lower end of the transparent material storage chamber. The discharging port is connected with the feeding port of the connecting base, and the spray head is connected with the spray head connector through a guide pipe. A buffer device capable of relieving the delivery speed of the drug entering the nasal cavity is arranged in thespray head. The dry powder nasal cavity inhalation and drug delivery device can control the suction amount of drug dry powders. The speed of drug ejection can be effectively reduced, and the discomfort caused by the medication of a patient can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a portable dry powder nasal cavity inhalation drug delivery device. Background technique [0002] Dry powder inhaler is a micronized aerosol without propellant, which refers to micronized drugs or carriers in the form of capsules, vesicles or multi-dose reservoirs, which are inhaled actively by patients through a special dry powder inhalation device. preparation. Dry powder inhalers are mostly pulmonary administration preparations, and are clinically used to treat local lung diseases such as asthma, chronic obstructive disease, and cystic fibrosis. [0003] Due to its large absorption area and no hepatic first-pass effect, the pulmonary drug delivery route has attracted extensive attention in the field of drug delivery system research and development, and its clinical application has also developed from traditional local treatment of asthma to systemic disease treatment....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/08
CPCA61M15/08A61M15/0068
Inventor 曹海燕杨波
Owner CHENGDU YITIAN TECH CO LTD
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