A needleless syringe comprises a main syringe body which is a main body thereof and which has, in the main body, a sliding movement passage connected to an opening provided on a front end surface of the main body; a holding unit which has an accommodating unit for accommodating an injection objective substance so that the injection objective substance is releasable; and a driver that is configured to apply energy to the holding unit in order to allow the holding unit to slide toward the opening. When the energy is applied by the driver to the holding unit disposed at the initial position, the holding unit slides in the sliding movement passage to abut against the opening at the abutment position, and thus the injection objective substance accommodated in the accommodating unit is discharged via the opening. Accordingly, the high injection performance of the needleless syringe is appropriately exhibited.

The invention provides an insufflation apparatus having a housing and a gas generator arranged to be, at least partially, mounted to the housing. The housing includes a gas outlet for delivering gas to a patient and a gas storage chamber arranged to store gas and deliver it to the gas outlet. The gas generator includes a cartridge mount on the housing adapted to receive a gas generating cartridge, the gas generating cartridge containing gas generating material that generates gas that is delivered to the gas storage chamber. The invention also provides alternative insufflation apparatus, a gas cartridge and a method of generating insufflation gas.

A method and device can alternately deliver high concentration of nitric oxide and oxygen-enriched air.

This document provides methods and materials for treating hypocapnia. For example, methods and materials for delivering CO.sub.2 to a mammal to treat hypocapnia or compensate for a reduced level of CO.sub.2 are provided.

A micro-delivery device includes a substrate having an upper surface; a shell disposed on the upper surface of the substrate and defining a chamber between the shell and the substrate; a planar electrode disposed on the upper surface of the substrate; a separator disposed in the chamber and dividing the chamber into an upper reservoir and a lower reservoir; and a cannula inserted in an opening of the rigid shell and in fluid communication with the upper reservoir.

The preferred embodiment of the invention provides a gas generator comprising an ion membrane electrolytic cell and an atomized/volatile gas mixing tank. The ion membrane electrolytic cell comprises an ion exchange membrane, a cathode chamber and an anode chamber. An anode electrode is set in the anode chamber, and a cathode electrode is set in the cathode chamber. The ion exchange membrane is set between the anode chamber and the anode chamber. When water is electrolyzed by the ion membrane electrolytic cell, oxygen is generated by the anode electrode and hydrogen is generated by the cathode electrode. The atomized/volatile gas mixing tank coupled to the ion membrane electrolytic cell accepts the hydrogen generated from the ion membrane electrolytic cell and generates an atomized gas to mix with the hydrogen for generating a healthy gas.

Embodiments of the invention provide swallowable devices, preparations, and methods for delivering drugs and other therapeutic agents within the GI tract. Particular embodiments provide a swallowable device such as a capsule for delivering drugs or other therapeutic agents (TA) into a wall of the GI tract such as the stomach or small intestine. The swallowable device comprises a sensor, a combustible propellant (CP) and a therapeutic agent preparation (TAP) comprising at least one TA. The sensor triggers the CP to ignite and propel the TAP into the wall of the GI tract in response to an external condition or change in external condition. Embodiments of the invention are particularly useful for orally delivering drugs or other TAs which are degraded within the GI tract and require parenteral injection.

A needleless injector includes a housing part that has an accommodating space that accommodates the intended injection substance, a nozzle portion that defines a flow path for guiding the intended injection substance accommodated in the housing part to the ejection port, a driving part that imparts ejection energy for ejecting the intended injection substance, a pressurizing portion that pressurizes the intended injection substance accommodated in the accommodating space via a propellant disposed to move or deform in a predetermined direction inside the needleless injector by imparting the ejection energy, and a notification unit that, after the ejection energy is imparted by the driving part and the intended injection substance is delivered into the target region, makes a predetermined notification regarding a first timing for canceling a contact state between the ejection port and the surface of the target region to a user.

An anti-explosion gas generator for health use is provided. The anti-explosion gas generator for health use includes an electrolysis device for electrolyzing water to produce a gas mixture of hydrogen and oxygen. The gas generator for health use further includes a gas mixing system coupled to the electrolysis device for receiving the gas mixture. The gas mixing system mixes the gas mixture with water vapor, an atomized medicine, a volatile essential oil or a combination thereof to produce a health gas. The health gas is provided for being inhaled by a user.

An anti-explosion gas generator for health use is provided. The anti-explosion gas generator for health use includes an electrolysis device for electrolyzing water to produce a gas mixture of hydrogen and oxygen. The gas generator for health use further includes a gas mixing system coupled to the electrolysis device for receiving the gas mixture. The gas mixing system mixes the gas mixture with water vapor, an atomized medicine, a volatile essential oil or a combination thereof to produce a health gas. The health gas is provided for being inhaled by a user.