A61M2205/073

Nasal drug delivery device

A compound delivery device for delivering a plume derived from a propellant and a drug formulation. The drug formulation is in an intranasal dosage form in the form of powder, suspension, dispersion or liquid. The propelled intranasal dosage form is deposited within the olfactory region of the nasal cavity. The drug deposited within the olfactory region is delivered to the brain avoiding the blood-brain-barrier. Hydrofluoroalkane propellant from a pressurized canister is channeled to a diffuser and drug-containing chamber where the intra-nasal dosage form is aerosolized. The aerosolized intra-nasal dosage form passes through a nozzle thus delivering a plume to the olfactory region of a user's nasal cavity.

METHOD FOR PRODUCING A CARTRIDGE

A method for producing a cartridge is proposed, where a fluid is filled into an opening of a container and a closure part is inserted into the container, thereby moving a movable piston arranged within the container.

Hemostatic powder delivery devices and methods

The present invention is directed to a device for expression of a hemostatic powder having an elongated reservoir with a manual air pump, such as a bellows, at a proximal end and an expression port at a distal end. A porous filter is slidably disposed within the elongated reservoir between the bellows, a plunger, and the expression port, and a spring is disposed within the elongated reservoir between the manual air pump and the plunger. The hemostatic powder is disposed within the elongated reservoir between the porous filter and the expression port, and the manual air pump is in a fluid communication with the expression port through the porous filter and through the hemostatic powder.

Flexible pumping chamber
11717620 · 2023-08-08 · ·

The invention relates to the field of inhalation devices for liquids. In particular, the invention relates to a pumping chamber for such an inhalation device. A pumping unit for an inhalation device for medically active liquids for generation of an aerosol comprises a tubular member (1), a check valve (2), and a counter piece, said counter piece being configured to receive at least a downstream segment of said tubular member (1) and having an interior volume, wherein upstream of said tubular member (1), a reservoir (4) can be fluidically connected with said tubular member (1), and downstream of said counter piece, a nozzle unit (6) can be fluidically connected with said counter piece, and wherein the tubular member (1) comprises an upstream section, a downstream section, and the check valve (2) which is positioned between the upstream section and the downstream section, such that a pumping chamber with a pumping chamber volume is defined which comprises the volume of the downstream section of the tubular member (1) and said interior volume of the counter piece, and wherein tubular member (1) and the counter piece can move relatively to one another, such that the pumping chamber volume is variable. The tubular member (1) comprises at least two mechanically distinct parts (1A, 1B), wherein a first part (1A) provides said upstream section, and a second part (1B) provides said downstream section, and the first part (1A) and the second part (1B) are connected to each other such as to form an interface section (1C) serving as a valve chamber (2B) for the valve (2).

CATHETER INFLATABLE CUFF PRESSURE-SENSING DEVICES
20220118204 · 2022-04-21 · ·

A pressure-sensing device (900, 1100) is provided that includes a user-activatable power-ON element, and a pressure sensor (143), which is in fluid communication with a connector port (122) configured to be coupled in fluid communication with an inflatable cuff (11) of an airway ventilation device (10), and is configured to sense an air pressure. Circuitry (141, 1141) is electrically coupled to the pressure sensor (143) and a relative-pressure display (140, 1140), and is configured to: (i) be activated by activation of the user-activatable power-ON element to (a) turn on the pressure-sensing device (900, 1100) and (b) perform a calibration procedure by setting a baseline pressure equal to a current air pressure sensed by the pressure sensor (143), and (ii) after setting the baseline pressure, periodically drive the relative-pressure display (140, 1140) to display the difference between (a) the air pressure currently sensed by the pressure sensor (143) and (b) the baseline pressure. Other embodiments are also described.

Negative pressure treatment including mechanical and chemical pump

A negative pressure assembly includes a drape, a sealing element, a reactor, a valve and a mechanical pump assembly. The drape and the sealing element, when applied to the skin, cooperate to define an enclosed volume. The reactor is located so as to be in fluid communication with the enclosed volume when the drape is covering the dressing site. The reactor reacts with a selected gas found in air to consume the selected gas. The valve has a first operating state in which gas is drawn from the enclosed volume through the valve. The mechanical pump assembly includes a pump chamber fluidly connectable to the enclosed volume through the valve when the valve is in the first operating state. The mechanical pump is configured to fluidly connect with the enclosed volume and draw air from the enclosed volume into the pump chamber.

AEROSOL SUPPLY DEVICE

An aerosol supply device includes: an accommodating part (cartridge) configured to accommodate a liquid; an atomization unit configured to atomize the liquid to generate an aerosol; a discharge port configured to discharge the generated aerosol to the outside of the aerosol supply device; and a volatilization preventing part (solenoid valve or duckbill valve) capable of opening and closing a passage (first passage or second passage) through which at least one of the liquid or the aerosol flows between the accommodating part and the outside of the aerosol supply device.

AEROSOL SUPPLY DEVICE

This aerosol supply device is provided with: an accommodating section (cartridge) that accommodates a liquid; an atomizing unit that atomizes the liquid to generate an aerosol; and an atomizing amount adjusting unit (gyro sensor and control unit) that adjusts the atomizing amount of the atomizing unit. The aerosol supply device is characterized in that the atomizing amount adjusting unit (gyro sensor and control unit) stabilizes the atomizing amount regardless of the inclination of the aerosol supply device within at least a certain range.

CONSTANT PRESSURE SYRINGE FOR SURGICAL USE
20210353850 · 2021-11-18 · ·

A closed system for harvesting fat through liposuction, concentrating the aspirate so obtained, and then re-injecting the concentrated fat into a patient comprises as its main components a low pressure cannula having between about 7 to 12 side holes of about 1-2 mm by 2.0 to 4.0 mm, a spring loaded syringe holder with a constant force or coiled ribbon spring to apply a substantially constant pressure over the fill excursion of the plunger, and a preferably flexible collection bag which is also preferably graduated, cylindrical over most of its body and funnel shaped at its bottom, all of which are connected through flexible tubings to a multi-port valve. The multi-port valve has two flutter/duck bill valves which restrict the fluid flow to a one way direction which effectively allows the syringe to be used to pump fat out of a patient and into a collection bag in a continuous manner. After the bags are centrifuged to concentrate the fat, the excess fluids are separated and the valve is re-connected to permit the syringe pump to reverse fluid flow to graft the concentrated fat back into the patient.

DEVICE AND METHOD FOR AEROSOLIZED DELIVERING OF SUBSTANCE TO A NATURAL ORIFICE OF THE BODY
20220001118 · 2022-01-06 · ·

A device for delivering a predetermined volume a substance within a body cavity. The device includes: at least one predefined volume sized and shaped to contain a predetermined volume the substance; a delivery end in fluid communication with a container; and at least one valve mechanically connected to the container and configurable between an active configuration in which the valve enables delivery of a volume of the substance and an inactive configuration, in which the valve prevents delivery.