# US 2019/0167923 A1 · Inhaler and fluid reservoir for an inhaler

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- Number: US 2019/0167923 A1
- Document ID: US20190167923A1
- Status: Published application
- Kind: A1
- Application number: 16/324,430
- Filed: 2017-08-03
- Published: 2019-06-06
- Earliest claimed: 2016-08-09
- Assignees: Hauni Maschinenbau AG
- Applicants: Hauni Maschinenbau GmbH
- Inventors: MARC KESSLER; RENE SCHMIDT
- Web page: https://patentgrep.com/patent/US20190167923A1

## CPC

- A61M 11/042: {electrical}
- A24F 40/485: Valves; Apertures
- A24F 40/57: Temperature control
- A61M 11/005: {using ultrasonics (spraying or atomising liquids using ultrasonic vibrations in general B05B17/06)}
- A61M 15/0065: {Inhalators with dosage or measuring devices (A61M15/0028 takes precedence; dosage devices incorporated in aerosol cans B65D83/52)}
- A61M 15/06: Inhaling appliances shaped like cigars, cigarettes or pipes
- A24F 40/10: Devices using liquid inhalable precursors
- A61M 11/001: {Particle size control}
- A61M 2016/0024: {with an on-off output signal, e.g. from a switch}
- A61M 2205/3368: Temperature
- A61M 2205/3389: Continuous level detection (A61M2205/3393 takes precedence)
- A61M 2205/3653: by Joule effect, i.e. electric resistance
- A61M 2205/50: with microprocessors or computers
- A61M 2205/6018: providing set-up signals for the apparatus configuration
- A61M 2205/8206: battery-operated
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)

## Abstract

The invention relates to an inhaler comprising a housing with a mouth end, at least one air inlet opening and an air channel extending into the housing between the at least one air inlet opening and the mouth end, a receiving area for a fluid reservoir, an electric energy accumulator, a supply device for generating steam and/or aerosol from a component mixture extracted from the fluid reservoir and adding the steam and/or the aerosol to an air flow flowing into the air channel, wherein the supply device comprises an evaporator which can be controlled separately and a control device for controlling the supply device. The control device is connected or can be connected a data store in which at least one set predefining the evaporating parameters can be called upon and stored therein for evaporating the component mixture in the evaporator.

## Claims

### Claim at position 1

1-19. (canceled)

### Claim 20

An inhaler, comprising:
a housing,
wherein the housing comprises;
a mouth end;
at least one air inlet opening; and
an air channel extending in the housing between the at least one air inlet opening and the mouth end;
a receiving area for a fluid reservoir;
an electrical energy source;
a supply device for generating vapor and/or aerosol from a component mixture extracted from the fluid reservoir and adding the vapor and/or the aerosol to an air flow flowing in the air channel,
wherein the supply device has an evaporator which can be actuated separately; and
a control device for controlling the supply device,
wherein the control device is configured to be connected to a data store in which at least one set of predefined evaporating parameters is stored and can be called upon for evaporating a component mixture in the evaporator.

### Claim 21 (depends on 20)

The inhaler according to claim 20, further comprising:
the data store,
wherein the control device is connected to the data store.

### Claim 22 (depends on 21)

The inhaler according to claim 21,
wherein the at least one set of predefined evaporating parameters contains data regarding one or more variables from the following group of variables:
a temperature to be adjusted;
a duration of individual evaporation steps and/or of the entire evaporation process,
which is to be adjusted;
a pressure to be adjusted; and
an evaporation energy to be provided.

### Claim 23 (depends on 21)

The inhaler according to claim 21,
wherein the at least one set of predefined evaporating parameters contains data regarding one or more variables from the following group of variables:
a minimum temperature;
a maximum temperature;
a minimum pressure;
a maximum pressure;
a minimum duration of individual evaporation steps and/or of the entire evaporation process; and
a maximum duration of individual evaporation steps and/or of the entire evaporation process.

### Claim 24 (depends on 21)

The inhaler according to claim 21,
wherein the at least one set of predefined evaporating parameters is deduced from the liquid phase-gas phase equilibrium diagram of the component mixture or corresponds thereto.

### Claim 25 (depends on 21)

The inhaler according to claim 21,
wherein the control device is set up to keep the temperature of the evaporator, at least over an evaporation interval corresponding to an inhalation puff, above a iirst characteristic temperature.

### Claim 26 (depends on 25)

The inhaler according to claim 25,
wherein the control device is set up to keep the temperature of the evaporator in the range between 1% and 90% above the first characteristic temperature.

### Claim 27 (depends on 21)

The inhaler according to claim 21,
wherein the control device is set up to keep the temperature of the evaporator, at least over an evaporation interval, below a second characteristic temperature.

### Claim 28 (depends on 27)

The inhaler according to claim 27,
wherein the control device is set up to keep the temperature of the evaporator, at least over an evaporation interval corresponding to an inhalation puff, above a first characteristic temperature,
wherein the first characteristic temperature is the boiling temperature of a component of the component mixture, and
wherein the second characteristic temperature is the boiling temperature of a highest-boiling component of the component mixture.

### Claim 29 (depends on 28)

The inhaler according to claim 28,
wherein the evaporation interval has a duration of 1 to 12 seconds.

### Claim 30 (depends on 21)

The inhaler according to claim 21,
wherein the evaporator comprises a heating device which can be adjusted to a predefined temperature.

### Claim 31 (depends on 30)

The inhaler according to claim 30,
wherein the evaporator has a temperature sensor for measuring a temperature of the heating device and/or for controlling or regulating a temperature of the heating device.

### Claim 32 (depends on 30)

The inhaler according to claim 30,
wherein the predefined temperature is variable within an evaporation interval, including one or more of the following:
intermittently increases;
intermittently falls; and
intermittently constant,
over the duration of an evaporation interval.

### Claim 33 (depends on 21)

The inhaler according to claim 21,
wherein a maximum temperature of the evaporator is at most 350° C.

### Claim 34 (depends on 21)

The inhaler according to claim 21,
wherein a machine-readable identification of the component mixture is assigned to the fluid reservoir, which is stored in the data store.

### Claim 35 (depends on 21)

The inhaler according to claim 21,
wherein evaporation is influenced in a deliberate manner, and an active ingredient released, via a suitably designed transport of a fluid from the fluid reservoir to the supply device

### Claim 36 (depends on 35)

The inhaler according to claim 35,
wherein the fluid is transported from the fluid reservoir to the supply device via an intermediate reservoir.

### Claim 37 (depends on 35)

The inhaler according to claim 35,
wherein the evaporator is connected to the fluid reservoir permanently via a line, or interruptibly in a fluid-conducting manner in order to form predefined fluid portions.

### Claim 38 (depends on 35)

The inhaler according to claim 35,
wherein the supply device has a drop atomizer which conducts the fluid drop by drop to the heating device which is arranged at a distance.

### Claim 39 (depends on 21)

A fluid reservoir for the inhaler according to claim 21,
wherein the fluid reservoir contains a component mixture,
wherein a proportion of a component of the component mixture, which boils higher than an active ingredient component, lies in a range between 15 percent by weight and 98 percent by weight and/or is at least 44 percent by weight.
