WO2006013951A1 - 薬液カートリッジおよび該カートリッジを用いた吸入装置 - Google Patents
薬液カートリッジおよび該カートリッジを用いた吸入装置 Download PDFInfo
- Publication number
- WO2006013951A1 WO2006013951A1 PCT/JP2005/014361 JP2005014361W WO2006013951A1 WO 2006013951 A1 WO2006013951 A1 WO 2006013951A1 JP 2005014361 W JP2005014361 W JP 2005014361W WO 2006013951 A1 WO2006013951 A1 WO 2006013951A1
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- Prior art keywords
- liquid
- unit
- chemical
- discharge
- liquid discharge
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/02—Inhalators with activated or ionised fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices; Ozone-inhalators with radioactive tagged particles
- A61M15/025—Bubble jet droplet ejection devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0065—Inhalators with dosage or measuring devices
- A61M15/0066—Inhalators with dosage or measuring devices with means for varying the dose size
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
- A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
- A61M2016/0024—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with an on-off output signal, e.g. from a switch
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/582—Means for facilitating use, e.g. by people with impaired vision by tactile feedback
Definitions
- the present invention relates to a chemical cartridge used in an apparatus such as an inhaler for discharging a drug as droplets.
- an inhalation device that discharges a drug such as a medicinal solution, aroma, and nicotine, as a fine droplet, and inhales the user.
- Japanese Patent No. 3 3 1 1 0 39 discloses an ink jet recording apparatus that has a suction means, a suction cap, and a protective cap and covers the discharge port with the cap during recording.
- Japanese Patent No. 3 3 7 5 6 3 7 discloses a configuration of a disposable package including a porous membrane and a container.
- Japanese Patent Application Laid-Open No. 2000-290-093 discloses a package configuration including a recovery (filling) means as a droplet discharge device. This recovery (filling) operation is performed when the package is set in the inhaler.
- a recovery (filling) operation is performed when the package is set in the inhaler.
- DISCLOSURE OF THE INVENTION In the conventional ink jet recording apparatus, an ink suction mechanism is provided on the recording apparatus main body side in order to fill the liquid ejection part with ink.
- This ink suction mechanism is a pump
- the liquid discharge part was filled with the ink by using the negative pressure due to. At that time, it was difficult to control the ink filling amount with the negative pressure of the pump, so the ink was sucked in with a margin. The sucked ink was absorbed by an absorber installed in the main body of the recording apparatus.
- inhalation devices used for inhalation of a liquid drug in the medical field as a mist are inhaled by opening the container containing the drug to the atmosphere immediately before use.
- the conventional configuration has the following problems.
- the inhaler Since the inhaler is often used three or more times a day, it is essential to carry it. In the case of a portable type, there is a problem that the ink suction mechanism increases the weight, complexity, and cost of the device. .
- an object of the present invention is to provide a chemical solution-trage and inhalation device that is convenient to carry and has a simple structure.
- the present inventors have intensively studied to solve the above-mentioned problems of the prior art, and have completed the present invention.
- a chemical cartridge (CRG) includes a storage unit that stores a chemical solution, a liquid discharge unit that has a discharge port for discharging a chemical solution by ink jet, and the storage unit and the liquid discharge unit communicate with each other. It has a communication means and a filling means for filling the liquid discharge part with a chemical solution.
- the filling operation can be completed easily and the liquid can be discharged.
- the structure It is easy to manufacture and can be manufactured easily.
- the chemical solution can be held in a sealed state like a commercially available chemical container, it is possible to ensure the storage life of the chemical solution as well.
- Fig. 1A is a cross-sectional view of the chemical cartridge with hinges before communication and before filling.
- Fig. 1B is a cross-sectional view of the chemical cartridge with hinges after communication and after filling.
- FIG. 2A is a cross-sectional view of the chemical cartridge having the communication means on the container side before communication and before filling.
- FIG. 2B is a cross-sectional view after the chemical liquid cartridge having the communication means on the container side is connected and after filling.
- FIG. 3A is a cross-sectional view of the chemical cartridge before communication and before filling, in a state where the originally communicating portion and the liquid discharge portion are blocked by the communication means.
- FIG. 3B is a cross-sectional view of the chemical cartridge after communication and after filling, in a state in which the storage portion and the liquid discharge portion that originally communicated with each other are disconnected from the communication means.
- FIG. 4A is a cross-sectional view of the chemical cartridge in which the communication means also serves as the filling means before communication and before filling.
- FIG. 4B is a cross-sectional view after filling and filling of the chemical cartridge in which the communication means also serves as the filling means.
- FIG. 5 is a perspective view of an example of the inhaler or inhaler according to the present invention.
- FIG. 6 is a perspective view of the state shown in FIG. 5 with the access cover open.
- FIG. 7 is a perspective view of an example of a CRG unit.
- FIG. 8 is a side sectional view of an example of a mouthpiece.
- FIG. 9 is a front sectional view of the mouthpiece of FIG.
- FIG. 10 is a side sectional view showing the positional relationship of the mouthpiece, the negative pressure sensor, and the discharge head portion of CRG unit shown in FIG.
- Fig. 11 is an overall cross-sectional view of the inhaler or device of Fig. 5.
- FIG. 12 is a graph illustrating an inhalation operation example of the inhaler or inhaler of FIG.
- FIG. 13 is a flow chart for explaining the overall operation of the inhaler or the inhaler of FIG. .
- Fig. 14 is a cross-sectional view of the configuration in the vicinity of the mouthpiece of application example 2 of the channel parallel type.
- FIGS. 15A and 15B are diagrams for explaining the operation of application example 3 using a valve.
- the present invention is characterized in that in a chemical liquid cartridge having an ink jet type liquid discharge section, means for filling the liquid discharge section with the chemical liquid is provided.
- the liquid discharge section can be filled manually so that the user can do the filling work just before use.
- the liquid discharge part can be filled with a chemical solution.
- filling of the chemical solution can be realized with a simple configuration in the chemical cartridge using the ink jet system.
- the liquid ejection apparatus is a liquid ejection apparatus. That is, the liquid ejection apparatus according to the present invention is a liquid ejection apparatus.
- the container is preferably made of a resin material that does not elute impurities into the chemical solution and does not affect the living body.
- a resin material that does not elute impurities into the chemical solution and does not affect the living body.
- Polyethylene, soft polypropylene, polycarbonate, ABS resin, methacrylic resin, or other single resin or polyethylene / evapor Resins such as EVAL (Ethylene Bull Alcohol Copolymer, Kuraray registered trademark) and Polypropylene Eval can be used. It is desirable that parts other than the container, which are in contact with the chemical solution, for example, communication means, etc. are made of the same material as the container.
- the liquid discharge head has a configuration disclosed in Japanese Patent Laid-Open No. 20.3- 1 5 4 6 5 5. 3) Communication means for communicating the storage part and the liquid discharge part
- the means for communicating between the storage section and the liquid discharge section communicates both of which are shut off before use during use.
- This communication means can take two forms.
- a 1st form comprises a film which penetrates a part of accommodating part (container) easily, and penetrates this with the member of a sharp shape at the time of use.
- This sharp-shaped member can be installed on the container side or on the liquid discharge part side.
- the communication path between the storage section and the liquid discharge section is made of a deformable material, and a shielding object is pressed against the pressure path by blocking the communication path, and the pressure is lowered during use to reduce the pressure. Communication is ensured by removing the shield.
- the filling means for filling the liquid discharge part with the chemical liquid has, for example, a structure in which at least a part of the container (container) can be deformed, and compresses the deformable part to reduce the internal volume of the container.
- the compression of the deformable part may be configured such that a specific member presses the part, or the part may be directly pressed using a person's finger.
- the container may not have a deformable part, and the communication means may enter the container and exclude the chemical solution therein.
- the chemical cartridge of the present invention has a structure in which liquid is discharged by applying a discharge force to the liquid in the liquid discharge portion, the container is deformed by the volume necessary for filling the liquid discharge portion with the chemical solution. It is enough to do it. Once the bubbles in the liquid discharge section are sufficiently removed, it is possible to discharge the chemical solution filled in the liquid discharge section by energizing the heater element and the piezo element of the liquid discharge section.
- the chemical solution of the present invention has a low-priced and simple structure in consideration of disposable, and it is intended to be filled with human hands, so that the amount of chemical solution overflowing from the surface of the liquid discharge part can be reduced. It is necessary to determine the degree to which this is to be done in consideration of the balance between accuracy and chemical cost.
- the volume of the chemical liquid that overflows when the liquid discharge part is filled with the chemical liquid in the storage part and the internal volume from the communication part to the liquid discharge part The sum is almost equal to the deformation volume of the container (container). It was also found that the internal volume from the communication part to the liquid discharge part may be 10 to 20% of the internal volume of the storage part.
- the deformation volume of the storage part is 40% of the internal volume of the storage part, when the chemical liquid is filled into the liquid discharge part from the communicating part, the liquid discharge surface overflows 20% of the chemical liquid in the storage part. Thus, the liquid can be discharged.
- the deformation volume of the storage portion should be 25% or more of the internal volume of the storage portion.
- An inhaler provided with a liquid medicine cartridge according to the present invention includes a mouthpiece having an inlet for a user to inhale, a housing connected to the mouthpiece, and a liquid ejection device in the housing. It is preferable to have a control unit for controlling the liquid cartridge and the liquid discharge unit. It is also preferable to incorporate a battery when carrying it with you. Further, it is more preferable that a detection means (a negative pressure sensor or the like) for detecting the user's inhalation is provided so that the discharge is performed in accordance with the inhalation.
- a detection means a negative pressure sensor or the like
- the liquid discharge section is made ready for discharge by sequentially performing the following two operations.
- the first operation is an operation of communicating the blocked storage unit and the liquid discharge unit using the communication means.
- the second operation is an operation that fills the liquid discharge portion with a chemical solution to enable discharge.
- FIG. 1A is a cross-sectional view of the chemical cartridge of the present invention that can sequentially perform communication operation and filling operation using the hinge 39 before communication and before filling.
- FIG. 1B is a cross-sectional view of the chemical cartridge of the present invention after communication and after filling.
- the base plate 31 and the container 33 are integrated through a hinge 39. If these are made as a single part by molding, the number of parts is reduced, and the cost can be reduced.
- the base plate 31 is provided with a liquid discharge part 32 and a protrusion 36 constituting a filling means.
- the liquid discharge part 3 2 and the communication means 3 5 communicate with each other inside.
- the chemical solution is contained in a container 33, and a film 37 and a deformable diaphragm 38 are attached.
- the film 37 is required to be thin enough to be penetrated by the communication means 35 and to have high oxygen gas barrier properties and water vapor gas barrier properties in order to maintain the chemical solution.
- the film material is preferably an aluminum vapor deposition film, a silica vapor deposition film, or a film in which EVA is sandwiched between polyethylene and polypropylene. Also, as the material of the diaphragm, polyethylene or polypropylene is preferred according to the material of the container. If oxygen gas barrier properties and water vapor gas barrier properties cannot be secured, a form that ensures the barrier properties by packaging the chemical cartridge outside can be taken.
- the base plate 3 1 is directed toward the container 3 3 around the hinge 39 to draw an arc motion and approach it.
- the communication means 3 5 breaks through the film 3 7, and the liquid discharge unit 3 2 and the container 3 3 communicate with each other.
- the chemical solution can be smoothly discharged by providing an air communication port (not shown).
- the overflow ratio (a Z c) decreases as the container volume (c), that is, the internal volume of the container is increased.
- the overflow ratio is 15%, which is practically acceptable, and if it is 20%, all nozzles can be discharged.
- the deformation ratio is 25%, which is practically acceptable, and if it is 30%, it is usually possible to discharge all nozzles.
- the container volume is small, if the deformation ratio is 40%, it seems that ejection can be reliably performed from all nozzles. This ratio did not change in other examples.
- the cartridge Depending on the number of nozzles and the volume of the container, it is preferable to design the cartridge so that the overflow volume is as small as possible within a range in which a desired discharge state can be realized.
- the communication is performed and filled by the user pressing the pressure with a finger.
- the present invention is not limited to this, and the pressure of the diaphragm is controlled by the pressure means electrically connected to the control means.
- a configuration in which the communication operation of the communication means is mechanically performed may be used.
- the communication means 4 1 is pushed with a finger to break through the film 4 2, thereby connecting the liquid discharge part 3 2 and the container 3 4.
- the second operation is to fill the liquid ejecting section 32 with the chemical liquid 34 corresponding to the volume of the diaphragm 44, which is deformed by the finger of the diaphragm 44, via the communication means 41. Similar to the first embodiment, the surface of the liquid discharge part 3 2 is wiped to remove the overflowing chemical liquid 4 0.
- Blocking means (pinch) 17 The shape and material of 17 are not limited as long as the shape and material can block communication. It can be spherical as shown in Fig. 3A, or it can be wedge-shaped. It is desirable that the container 4 6 be a thin, flexible material that can be deformed as the chemical solution 3 4 decreases.
- the blocking means (pinch) 4 7 is opened, and the liquid discharge part 3 2 and the container 4 6 communicate with each other.
- the slider 4 9 is further slid to compress and deform the container 46 with the filling means 48, and the liquid medicine 3 4 is filled in the liquid discharge part 3 2.
- the overflowing chemical solution 40 wipe the surface of the liquid discharge part 32 in the same way as before to remove the excess chemical solution.
- FIG. 4A is a cross-sectional view of the chemical cartridge of the present invention in which the communication means 52 serves also as the filling means before communication and before filling.
- Figure 4B shows the chemical cartridge of the present invention. It is sectional drawing before filling and after filling.
- the base plate 50 is provided with communication means 52 and a liquid discharge part 32.
- the container 5 1 contains a chemical solution 7 3 4, and is shielded from the atmosphere by the film 5 3 and the film 5 4.
- the required performance of film 53 and film 54 is the same as film 37.
- the communication means 5 2 has a sufficiently large volume so that the chemical liquid 34 in the container 51 is pushed out and filled in the liquid discharge part 32 at the time of communication.
- the communication means 52 is pressed against the film 53 and broken, thereby causing the liquid discharge part 32 and the container 51 to communicate with each other.
- the chemical liquid 34 in the container 51 is pushed out, and the chemical liquid 34 in the container 51 is filled in the liquid discharge section 32.
- the air communication port is obtained by breaking film 5 4 with communication means 5 2.
- the overflowing chemical solution 40 wipe the surface of the liquid discharge part 32 in the same way as before to remove excess chemical solution.
- the finolems 53 and 54 have been described.
- the present invention is not limited to the film as long as the communication means 52 can be pushed and broken. That is, the container 5.1 and the film 53 can be integrally molded by injection molding.
- the film 54 can be a thin plate and can be detached by pressing the communication means 52.
- the discharge port does not directly receive the negative pressure generated by the user's inhalation, and fine droplets can be discharged continuously from the discharge port of the discharge head.
- the discharge port of the discharge unit is arranged at a position where a negative pressure that is a pressure difference from the atmospheric pressure generated at the time of inhalation causes a pressure difference that does not naturally discharge the liquid from the discharge port.
- the droplets can be ejected satisfactorily.
- a discharge method at the discharge part either thermal energy or piezoelectric energy can be used. In either method, the liquid is supplied from the tank open to the atmosphere by the capillary force of the nozzle, so that a pressure environment within the range where the (negative) pressure of the tank and the discharge ROMENISUS can be balanced is necessary.
- the air flow of the entire inhaler is formed only by the mouthpiece, so that the airflow part is contaminated by the liquid only in the flow path in the mouthpiece, and if only the mouthpiece is washed, the inhaler
- the interior is kept safe and hygienic.
- the parameters related to the liquid agent discharge are changed according to, for example, the amount of intake (that is, detected by the pressure detection unit).
- the inhalation curve according to the degree of change in the inhalation curve shown in Fig. 12
- more liquid can be sent to the user's lungs to improve inhalation efficiency.
- the discharge control means for changing the parameter related to the discharge of the liquid agent in accordance with the change in the flow velocity of the suction obtained from the negative pressure sensor (change in the negative pressure) within the predetermined time for performing the suction.
- the discharge port of the pressure detection unit and the discharge unit may be arranged so as to face separate flow paths from the suction port unit.
- the flow channel forms a flow channel outlet at the suction port, and the suction port is formed around the flow channel outlet in accordance with the shape of the human mouth.
- the portion having another flow path is formed, and the portion where the pressure detection unit is arranged (the communication hole with the negative pressure sensor) faces the another flow path.
- Means for informing by a change in the vibration mode may be provided.
- Means for informing the user of the inhalation time for starting the inhalation and how long it should be inhaled may be provided.
- means for informing the inhalation time means utilizing vibration of a vibration motor can be used.
- the inhaler configured in this way, the mental and physical burden on the patient (user) can be reduced, and the inhalation of the drug (solution) can be performed with a simple operation of the patient.
- the discharge and changing the drive parameter of the discharge according to the patient's inhalation volume more drugs are delivered to the lungs to improve the inhalation efficiency and to effectively administer the drugs.
- FIG. 5 is a perspective view showing the appearance of the inhaler.
- 1 is an inhaler body
- 2 is an access cover
- 3 is a front cover, which form a housing.
- Reference numeral 5 denotes a lock lever, and a claw-shaped part provided at the tip of the lock lever 5 which is biased by the panel is provided on the protrusion 2 a provided at the tip of the access cover 2 so that the access cover 2 does not open during use. It is formed to have a catch.
- the lock lever 5 is slid downward, the access cover 2 opens around the hinge shaft (not shown) as the center of rotation by the force of the access cover return panel (not shown) urging the access cover 2.
- 1 0 1 is an electronic switch
- 1 0 2 is a display LED.
- FIG. 6 illustrates the state where the access cover 2 is opened.
- the CRG unit 6 and the mouthpiece 4 mounted in the housing can be seen along the CRG guide 20.
- the mouthpiece 4 is under the CRG unit 6, which are mounted in a cross.
- Figure 7 shows the entire CRG unit 6.
- the CRG unit 6 includes a tank 7 containing a liquid agent, a head unit (discharge unit) 8 that discharges the liquid agent, and a battery 10 0 (see Fig. 1 1) for generating heat energy in the heater provided in the head unit 8.
- the front part of CRG unit 6 can be opened around hinge part 24, and tank 7 can be accessed.
- a protrusion is formed on the back surface of the front portion, and at the same time the front surface portion is closed, the protrusion enters the tank 7 and applies a little pressure to the liquid agent in the tank 7, so that the head portion 8 The discharge port is refreshed.
- Cross-sectional views of the mouthpiece 4 are shown in FIGS.
- Mouthpiece 4 forms the air flow path only with mousepiece 4, and the liquid agent is dispensed from the discharge port provided in head 8 of CRG unit 6 in the vicinity of air intake port 1 1.
- 4 Window to take in (Liquid intake) 1 2 is open.
- a throttle portion 4a having a shape that gently changes in the direction of decreasing cross-sectional area.
- negative pressure is detected to detect the suction speed or the flow rate as its integral value.
- the negative pressure sensor 19 is arranged on the control board 21 (see Fig. 10 and Fig. 11). In the middle of the flow path communicating from the air hole 13 to the negative pressure sensor 19, an enlarged space 22 is provided. This is provided as a reservoir for dirt, dirt, water droplets, liquids, etc. This prevents intrusion through hole 13 and adheres to the surface of negative pressure sensor 19 and causes malfunction.
- a mouthpiece outlet (suction port) 15 having a shape that can be seen by a person is formed.
- the mouthpiece outlet 15 has an elliptical cross section in accordance with the shape of the human mouth, and a channel outlet 14 serving as a passage for the liquid agent is provided inside the double structure.
- the flow path outlet 14 has a gradual cross-sectional area so that the mixed fluid of air and liquid suddenly spreads at the outlet and the mixed fluid does not adhere to the teeth of the mouth of the person holding the mouthpiece outlet 15.
- the shape is wide. Therefore, when the user walks the mouthpiece outlet 15, the end of the channel outlet 14 should be slightly in the teeth.
- the end of the channel outlet 14 may be formed so that it protrudes a little outside the end of the mouthpiece outlet 15.
- the cross section of the air flow path of the mouthpiece 4 has a rectangular shape, and when the mouthpiece 4 is mounted in the housing, the air intake port 11 faces upward. So that it can be installed securely in
- Fig. 11 shows an overall longitudinal section of the inhaler of this application example.
- a control board 21 for controlling the inhaler is disposed under the battery 10.
- the probe board 1 6 force S connected to the control board 2 1 by a cable or connector (connector 2 5 in FIG. 1 1) is placed under the CRG unit 6, and the probe board 1 6 to CRG
- a contact probe 17 is provided in the head part 8 of the CRG unit 6 for energization for heat generation.
- a vibration motor 18 is arranged in the space between the notch 10 and the mouthpiece 4 so as to be in contact with the control board 21.
- Liquid substrate discharge is started from the head part 8 of the CRG unit 6 by the control of the plastic substrate 21.
- vibration of the vibration motor 18 is also started to inform the patient (user) that liquid discharge has started.
- the inhalation speed and inhalation duration calculated from the negative pressure measurement value of the negative pressure sensor 19 so that the last discharged liquid reaches the lung.
- the vibration motor 18 vibrates for the pre-inhalation time after the end of the discharge to inhale the pre-inhalation, and prompts the user to inhale so that the discharged liquid completely reaches the lungs.
- the vibration of the vibration motor 1 8 is completed, the user (user) stops the inhalation. According to this, liquid discharge and inhalation work together, and it is possible to reliably deliver the liquid to the lungs, eliminating failures such as insufficient inhalation.
- Mouthpiece outlet 1 3 prevents mixed fluid from leaking from the side of the mouth, reducing the waste of suction, and makes it difficult for the fluid to collide with obstacles such as teeth in the mouth, making the liquid efficient Often inhaled into the user's body.
- vibration using vibration motor 18 is preferred over sound notification.
- a vibration motor is provided. This allows easy inhalation anywhere.
- C R G unit 6 When C R G unit 6 is installed, it becomes as follows. This mode is usually used by patients (users). The patient (user) starts inhalation (S806), and when this inhalation is detected and a certain negative pressure is detected by the negative pressure sensor 19 (S807), the ejection head unit 8 starts ejecting droplets. (S808). If a constant negative pressure is not detected, a warning may be issued to encourage stronger inhalation.
- the liquid agent discharge is continued for a predetermined time from the start gap, and a predetermined amount of the liquid agent is discharged. This amount is determined from the read data.
- the negative pressure sensor 19 was monitoring the temporal change in negative pressure due to inhalation, and whether a predetermined amount was sucked from the integral amount (from which point the integral amount should be viewed should be set appropriately) (This integrated amount is related to detecting the intake of a predetermined amount of liquid because the integral amount is related to the intake amount of the gas mixture of the user's air and liquid) (S809), the predetermined amount is inhaled Operation is terminated. During this period, the vibration motor 18 is vibrated.
- the discharge port of the liquid agent discharge unit is surely disposed at a position where the pressure difference is smaller than the pressure difference detected by the pressure detection unit at the time of inhalation and the pressure difference is generated.
- the possibility of liquid leakage from the part is reduced, and the adverse effect on the discharge part life is reduced.
- a predetermined amount of liquid can be reliably and efficiently administered to the user with a simple operation.
- Fig. 14 shows application example 2, which differs from application example 1 only in the configuration of the flow path to the pressure detection section (the communication hole 13 connected to the negative pressure sensor 19).
- a communication hole 1 3 is provided outside the flow path outlet 14 of the mouthpiece outlet 15 at the tip of the mouthpiece 4, and thus a negative pressure detection flow path to the negative pressure sensor 19. However, it is completely separated from the air flow path of Mouse Piece 4 and is placed in parallel. If the mouthpiece 4 is inserted from above and in front of the inhaler, the mounting direction is the direction in which the communication hole 1 3 is in close contact with the negative pressure detection flow path to the negative pressure sensor 1 9. It is advantageous to prevent. Therefore, negative pressure detection is surely performed. In addition, since the negative pressure detection flow path to the negative pressure sensor 19 and the liquid agent flow path are completely separated, contamination by the liquid in the A pressure detection flow path is reduced, and high-precision detection is achieved. Secured. The other points are the same as Application Example 1.
- Figures 15A and 15B show Application 3 with a pressure relief mechanism different from the flow restrictor in Application 1.
- Application Example 3 in the flow path of the mouthpiece 4, the cross-sectional area of the flow path is formed in the part between the communication hole 1 3 to the negative pressure sensor 1 9 and the fluid inlet 1 2 where the discharge head 8 comes.
- a valve 30 having the same size as that of the valve 30 is rotatably provided. The valve 30 is in the state shown in Fig. 15A where it always hits the valve stopper 31 to substantially block the flow path, except during inhalation. When the user inhales, the valve 30 opens as shown in Fig. 15 B.
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- Heart & Thoracic Surgery (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006531563A JP4393518B2 (ja) | 2004-08-02 | 2005-07-29 | 薬液カートリッジおよび該カートリッジを用いた吸入装置 |
EP05768728A EP1785155A1 (en) | 2004-08-02 | 2005-07-29 | Chemical liquid cartridge and inhalation device using the same |
US10/566,429 US7513253B2 (en) | 2004-08-02 | 2005-07-29 | Liquid medication cartridge and inhaler using the cartridge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004225510 | 2004-08-02 | ||
JP2004-225510 | 2004-08-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/566,429 Continuation US7775596B2 (en) | 2006-12-04 | 2006-12-04 | Smartfold electronic actuation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006013951A1 true WO2006013951A1 (ja) | 2006-02-09 |
Family
ID=35787230
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/014361 WO2006013951A1 (ja) | 2004-08-02 | 2005-07-29 | 薬液カートリッジおよび該カートリッジを用いた吸入装置 |
PCT/JP2005/014370 WO2006013952A1 (en) | 2004-08-02 | 2005-07-29 | Inhaling apparatus |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/014370 WO2006013952A1 (en) | 2004-08-02 | 2005-07-29 | Inhaling apparatus |
Country Status (6)
Country | Link |
---|---|
US (2) | US7513253B2 (ja) |
EP (2) | EP1785155A1 (ja) |
JP (1) | JP4393518B2 (ja) |
CN (1) | CN100569310C (ja) |
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Also Published As
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JPWO2006013951A1 (ja) | 2008-05-01 |
WO2006013952A1 (en) | 2006-02-09 |
RU2007107793A (ru) | 2008-09-10 |
CN100569310C (zh) | 2009-12-16 |
CN1993152A (zh) | 2007-07-04 |
JP4393518B2 (ja) | 2010-01-06 |
US20070227534A1 (en) | 2007-10-04 |
US7513253B2 (en) | 2009-04-07 |
EP1785155A1 (en) | 2007-05-16 |
EP1776151A1 (en) | 2007-04-25 |
US20070240706A1 (en) | 2007-10-18 |
RU2362593C2 (ru) | 2009-07-27 |
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