CN100548402C

CN100548402C - Inhalation type drug delivery device

Info

Publication number: CN100548402C
Application number: CNB2005100860297A
Authority: CN
Inventors: 李清昭
Original assignee: Galemed Corp
Current assignee: Galemed Corp
Priority date: 2005-07-20
Filing date: 2005-07-20
Publication date: 2009-10-14
Anticipated expiration: 2025-07-20
Also published as: CN1899636A

Abstract

An inhalation drug release device is used to connect a drug storage device that can release aerosolized drugs for users to inhale the aerosolized drugs; it includes: a shell, having an input port and an output port, and a chamber therebetween; a cover body, at least partially made of breathable material and connected to the input port of the shell, the cover body is connected to the chamber to provide a temporary storage chamber for released drugs; and a first one-way valve, which is arranged in the chamber of the shell and can be opened under the action of negative pressure. The present invention utilizes the breathability of the cover body to avoid the generation of negative pressure in the chamber and the temporary storage chamber, providing the user with the effect of easily inhaling drugs.

Description

Inhaling type medicine releasing device

[technical field]

The present invention relates to a kind of inhaling type medicine releasing device, particularly relate to a kind of inhaling type medicine releasing device of easily inhaling medicine for the patient.

[background technology]

Respiratory tract disease causes outbreak as easy stimulating factors because of external environment such as asthma, causes the patient respiratory difficulty.Medicine is often adopted " induction type medicine " prescription needed medicine [as bronchodilator (bronchodilators) or anti-inflammatory drug (Anti-inflammatory agents) etc.] is directly delivered in the lung with performance treatment effectiveness.

The normal at present carry-along induction type medicine that uses has three kinds of occupation modes approximately, first kind is that directly the quantitative spray, second kind of induction type are that the content that sucks is superfine medicated powder, the third is the induction type medicine that can connect " suction assistor " to suck tight back, this type of induction type medicine sucks with spray method mostly, suck the use of assistor, medicine is reduced in the sedimentary amount of throat, the dose that medicine is sent in the lung is sufficient, and " the suction assistor " that The present invention be directed in the third occupation mode provides improvement.

As shown in Figure 1, be a kind of assistor 1 that in the past sucked, include the cylindrical shell 11 that has an accommodation space 111 in, and one is located on the cylindrical shell 11 and is filled with the bomb 12 of medicine.Cylindrical shell 11 1 ends are formed with an inlet 112, another end opposite then is formed with an outlet 113, be positioned at the outlet 113 ends cylindrical shell 11 on and be provided with one be available for users to suck be difficult to articulate 114, and described outlet 113 places be provided with one can be towards the check valve 115 of the unidirectional unlatching of 114 directions of being difficult to articulate.Bomb 12 then is mounted in inlet 112 places of described cylindrical shell 11.Being provided with one on the bomb 12 in addition can be for the switch 121 of patient's pressing operation, and a conduit 122 that medicine can be imported in the cylindrical shell 11.As long as the patient sucks and is difficult to articulate 114 whereby, press the switch 121 on the bomb 12 in good time, can messenger drug object height speed spray in the accommodation space 111 and produce atomizing effect simultaneously, this moment, the patient was as long as deep the breathing can be opened by tractive mono-directional valve 115, made that the medicine that atomized can be by exporting 113 and then sucked by the patient.Yet because of the accommodation space 111 of cylindrical shell 11 is to be air-tight state, along with the air-breathing number of times of user, negative pressure can be more and more big in the accommodation space 111, so that the air-breathing more and more effort of user.

[summary of the invention]

The object of the present invention is to provide a kind of inhaling type medicine releasing device of easily inhaling medicine for the patient.

In order to achieve the above object, the invention provides a kind of inhaling type medicine releasing device, suck described atomization medicine for user in order to connect a medicine storage that can disengage atomization medicine; It is characterized in that: comprise:

One housing has an input port and a delivery outlet, and an intervenient chamber, and described chamber is separated into front section and back section, the delivery outlet of the contiguous described housing of described front section, and described back section is the input port of contiguous described housing then;

One cover body, made and be connected in the input port of described housing by gas permeable material to small part, described cover body is communicated with described chamber to provide one to discharge the medicine temporary room; And

One first check valve, be located in the described chamber of described housing and can be open-minded under suction function, described first check valve is in order to the break-make of section before and after the control, and the medicine that discharges when described first check valve is opened is flowed towards described front section by the described back section of described chamber.

Described inhaling type medicine releasing device, it is characterized in that: described cover body has a hollow connecting portion in order to the input port place that is connected in described housing, and a ventilative portion that is located at the described connecting portion other end, described temporary room is to be defined as jointly by described connecting portion and described ventilative portion.

Described inhaling type medicine releasing device, it is characterized in that: also include a filter gas spare that is communicated with described enclosure interior, and one in order to control second check valve of break-make between described filter gas spare and described housing, described second check valve can be open-minded because of positive pressure, makes air-flow import in the described filter gas spare and export the external world to after the filtration.

Described inhaling type medicine releasing device is characterized in that: also include being difficult to articulate of described equipped at outlet port that is installed in described housing.

Described inhaling type medicine releasing device is characterized in that: also include a face shield that is installed in the described equipped at outlet port of described housing and use in the mouth and nose place for covering user.

Described inhaling type medicine releasing device is characterized in that: described ventilative portion is made by the adhesive-bonded fabric material.

In sum, inhaling type medicine releasing device of the present invention is used for a medicine storage that is installed in medicine and is planted, and makes the medicinal atomized output in the medicine storage; Inhaling type medicine releasing device includes a housing, that can plug for medicine storage to be located at housing one end and locally be the cover body of gas permeable material, and one is located at first check valve that housing is interior and can open under suction function; After medicine storage is imported medicine housing and is produced atomizing effect towards the cover body direction, as long as user is air-breathing facing to the delivery outlet of housing, can make first check valve open-minded because of suction function along the air current flow direction, make the medicine after the atomizing to suck for user by delivery outlet output by first check valve, borrow the ventilative property of cover body in addition, when the balance user is inhaled medicine in the housing, outer pressure, and can avoid generation negative pressure appearance in chamber and the temporary room, provide user easily to inhale the effect of medicine, in addition, cooperate the setting of above-mentioned filter gas spare, more just be discharged outside to after the gas filtration that user can be breathed out, avoid antibacterial to disseminate.

[description of drawings]

Below in conjunction with drawings and Examples inhaling type medicine releasing device of the present invention is elaborated:

Fig. 1 sucked the assistor sketch map in the past;

Fig. 2 is the partial cutaway schematic of inhaling type medicine releasing device one preferred embodiment of the present invention;

Fig. 3 be described preferred embodiment make cardon one, show that when user was air-breathing, first check valve was opened and second closed check valve, the flow regime of atomization medicine;

Fig. 4 be described preferred embodiment make cardon two, show that when user was exhaled, first closed check valve and second check valve were opened, the flow regime of user exhaled air flow;

Fig. 5 is the sketch map that aspect is used in described preferred embodiment one, shows to utilize high pressure oxygen that the liquid drug in the medicine storage is sprayed at a high speed in the housing to produce the aspect of atomizing effect;

Fig. 6 is the sketch map of another use aspect of described preferred embodiment, shows that when user was air-breathing, first check valve was opened and second closed check valve, the flow regime of atomization medicine; And

Fig. 7 is the another use aspect sketch map of described preferred embodiment, shows that when user was exhaled, first closed check valve and second check valve were opened, the flow regime of user exhaled air flow.

[specific embodiment]

As shown in Figure 2, it is first preferred embodiment of inhaling type medicine releasing device 2 of the present invention, use for a medicine storage 3 that is installed in medicine and plant, described medicine storage 3 is one to be filled with the high-pressure bottle of powdered drug, and medicine storage 3 has the medicine output control valve 31 that a medicine outlet (not shown), is located at the medicine outlet place, and one is communicated with described control valve 31 and nozzle 32 that medicine is exported with high velocity jet.Described inhaling type medicine releasing device 2 includes the cover body 22 that a housing 21, is located at housing 21 1 ends, and first check valve 23 of being located in the housing 21.Housing 21 has an input port 211 and a delivery outlet 212, and a chamber 213 that is formed at therebetween.Described chamber 213 is separated into front section and back section, defines front section herein and be the delivery outlet 212 near housing 21, and then section is then near the input port 211 of housing 21, and with the break-make of sections before and after 23 controls of first check valve.The medicine that discharges when first check valve 23 is opened can by the back section of chamber 213 forward section flow.Cover body 22 has that a connecting portion 221, that is the hollow cylinder shape is located at connecting portion 221 1 ends and by the made ventilative portion 222 of breathable adhesive-bonded fabric material, connecting portion 221 defines a temporary room 223 jointly with ventilative portion 222.Described connecting portion 221 other ends are formed with an opening 224, and input port 211 ends of housing 21 can be communicated with temporary room 223 via described opening 224.When first check valve 23 was closed condition, temporary room 223 only was communicated with the back section of chamber 213.

In addition, inhaling type medicine releasing device 2 more includes one and is installed in housing 21 delivery outlets, 212 places and being difficult to articulate of being available for users to suck 24, one is communicated with chamber 213 front section of housing 21 and can be in order to the filter gas spare (Bacterial filter) 25 of the antibacterial in the filtering gas, and one second check valve 26.Be difficult to articulate and have one in 24 and be communicated with chamber 213 and extraneous passage 241.Filter gas spare 25 then has one and is fixed on the housing 21 and the input 251 that communicates with chamber 213, the outfan 252 relative with described input 251, and a filter course 253 between 252 of input 251 and outfans.The break-make of aforementioned second check valve, 26 may command filter gas spare 25 and chamber 213.

As Fig. 2, shown in 3, in the use, user need be sucked 24 also actuation control valve 31 unlatchings of being difficult to articulate, at this moment, medicine in the medicine storage 3 promptly sprays in the chamber 213 of housing 21 at a high speed via nozzle 32, can produce atomizing effect by bump housing 21 internal faces, medicine after the atomizing will be filled the air to temporary room 223 by chamber 213 back sections, when user is air-breathing, chamber 213 front section produce suction function power and open along the air current flow direction to attract first check valve 23, make that the medicine after the atomizing can be by temporary room 223, chamber 213 back sections export in the user mouth via delivery outlet 212 by first check valve 23, because the ventilative performance of the ventilative portion 222 of cover body 22 allows that air can pass in and out cover body 22, and then in the balance, external pressure, avoid producing excessive negative pressure in chamber 213 and the temporary room 223, so user more light and leicht fallen D/A when sucking medicine.

In addition, as shown in Figure 4, when user is exhaled, the malleation pushing tow that first check valve 23 is subjected to described exhaled air flow forms closed condition, second check valve 26 then be subjected on the contrary described exhaled air flow the malleation pushing tow and towards opening away from housing 21 directions, make that exhaled air flow can be by in the input 251 input filter gas spares 26, through being discharged by outfan 252 after the filtration of filter course 253 again.So for some user of suffering from infectious respiratory disease, more can effectively filter antibacterial, prevent that antibacterial from disseminating.

As shown in Figure 5, inhaling type medicine releasing device 2 of the present invention is except making things convenient for user carries as above-mentioned, when using in medical institutes, also visual situation and replace with face shield 27 and aforementionedly to be difficult to articulate 24, in addition, more can be provided with an out splice going splice 33 on the medicine storage 3, can be installed in liquid drug in the medicine storage 3 this moment; In use, the output pipe of medical institutes mesohigh breathing equipment 4 (can certainly be an air source) can be engaged with the out splice going splice 33 of described medicine storage 3, and face shield 27 cover placed user mouth and nose place, utilize in the hyperbaric oxygen upward adverse flow of QI speed input medicine storage 3, under the effect of Bai Nuli principle, produce negative pressure and liquid drug is sucked in the high-speed gas in nozzle 32 places, and then spray at a high speed in the chamber 213 back sections of housing 21, also can produce atomizing effect by bump housing 21 internal faces, and then fill the air to temporary room 223, so when user is air-breathing, first check valve 23 is open-minded because of suction function, and the medicine that has atomized also can suck (as shown in Figure 6) by delivery outlet 212 outputs for user like a dream by first check valve 23.And for example shown in Figure 7, when user is exhaled, first check valve 23 forms off state, second check valve 26 then be subjected on the contrary described exhaled air flow the malleation pushing tow and towards opening away from 21 housings, 21 directions, therefore, exhaled air flow can be discharged outside to by outfan 252 after filter gas spare 25 filters by second check valve 26.So for some user of suffering from infectious respiratory disease, more can effectively filter antibacterial, prevent that antibacterial from disseminating.

As mentioned above, inhaling type medicine releasing device 1 of the present invention is provided with a breathable cover body 22 by housing 21 1 ends, when inhaling medicine with the balance user, the pressure that housing 21 is inside and outside is avoided producing negative pressure in the housing 21, thereby is made user can easily inhale medicine effortlessly, in addition, cooperate the setting of filter gas spare 26, more just be discharged outside to after the gas filtration that user can be breathed out, avoid antibacterial to disseminate.

Claims

1. An inhalation drug release device, used to connect a drug reservoir capable of releasing atomized drugs for the user to inhale the atomized drugs; it is characterized in that it comprises:

a housing having an input port and an output port, and a chamber therebetween, the chamber being divided into a front section and a rear section, the front section being adjacent to the output port of the housing, the The latter section is adjacent to the input port of the housing;

a cover at least partially made of a gas-permeable material connected to the input port of the housing, the cover communicating with the chamber to provide a release drug buffer; and

A first one-way valve, which is set in the chamber of the housing and can be opened under negative pressure, the first one-way valve is used to control the on-off of the front and rear sections, the first one-way valve Drug released upon opening of the valve flows from the rear section of the chamber towards the front section.

2. The inhalation drug release device according to claim 1, wherein the cover body has a hollow connecting portion for connecting to the input port of the housing, and a hollow connection portion disposed on the connecting portion. As for the vent part at the other end, the temporary storage chamber is jointly defined by the connection part and the vent part.

3. The inhalation drug release device according to claim 1, further comprising an air filter communicated with the interior of the housing, and an air filter for controlling the distance between the air filter and the housing. The on-off second one-way valve, the second one-way valve is opened due to positive pressure, so that the air flow is input into the air filter and then filtered to the outside.

4. The inhalation drug delivery device as claimed in claim 1, further comprising a mouthpiece disposed at the outlet of the casing.

5. The inhalation drug release device as claimed in claim 1, further comprising a mask installed at the output port of the housing for covering the user's mouth and nose.

6. The inhalation drug release device as claimed in claim 2, wherein the air-permeable part is made of non-woven material.