The invention relates to a medical gas supply device that supplies hydrogen gas to inhalation gas, including: an inhalation gas path that is connected to an inhalation line on an artificial respirator side; a hydrogen gas introduction path that is connected to a hydrogen gas supplier; a merging point where these two paths merge; a tank that is provided downstream of the merging point, includes a gas inlet and a gas outlet, has a diameter larger than that of the inhalation gas path, and mixes inhalation gas and hydrogen gas to form a mixed gas; a mixed gas supply path that connects the gas outlet and a patient-side inhalation line; a flow meter that is provided in the inhalation gas path; a flow rate controller that is provided in the medical gas introduction path; and a control unit that is connected to the flow meter and the flow rate controller.

A medical system includes a propellant source containing a propellant fluid, containers containing a material, and a shaft having a plurality of lumens, each of the plurality of lumens having a first opening at a proximal end of the shaft and a second opening at a distal end of the shaft. The plurality of lumens are fluidly coupled to one or more of the propellant source and at least one of the plurality of containers, and a first lumen surrounds, is coaxial with, or is side-by-side with, at least one other lumen.

The present invention provides a gas generator comprising an electrolytic cell, a gas pathway, and an ozonator. The electrolytic cell is configured for electrolyzing the electrolyzed water to generate the gas with hydrogen. The gas generated from the electrolytic cell is transferred by the gas pathway for human to inhale. The ozonator is connected to the gas pathway for generating ozone to enter the gas pathway. The present invention uses the ozonator to generate ozone for cleaning the gas pathway, thereby providing a pure gas with hydrogen.

Provided is a hydrogen gas aspirator which can be carried by a user and freely carried by the user, and which can be supplied with hydrogen gas by adjusting concentrations of the aspirator. The hydrogen gas aspirator for generating and aspirating hydrogen gas includes: a first hydrogen gas aspirator body having at least a hollow interior; a second hydrogen gas aspirator body having an aspirator hollow layer and an aspirator hollow layer connected to each other by a low pressure check valve; and a variable pressure control valve capable of adjusting and passing hydrogen gas concentrations between the first and second hydrogen gas aspirator bodies, wherein substances that hydrogen generate and react by contacting water and water for reaction can be placed on the aspirator hollow layer inside the second hydrogen gas aspirator body.

A surgical evacuation system for communication between a smoke evacuation device and a filter device through a communication circuit is provided. The surgical evacuation system comprises a smoke evacuation device comprising a pump and a motor operably coupled to the pump. The surgical evacuation system also comprises a communication circuit and a filter device in communication with the smoke evacuation device through the communication circuit. The filter device comprises a plurality of filter components including a plurality of filter elements and a plurality of filter sensors. The plurality of filter elements comprises at least one of a fluid filter, particulate filter, and a charcoal filter. The communication circuit is configured to authenticate the plurality of filter components, verify a remaining life of at least one of the plurality of filter components, update parameters output from the plurality of filter components, and record errors output from the plurality of filter components.

A surgical evacuation system having dual in-series large and small droplet filters is provided. The surgical evacuation system comprises a pump, a motor operably coupled to the pump, and a flow path fluidically coupled to the pump. the flow path comprises a first fluid filter configured to extract a large droplet in a fluid moving through the flow path and a second fluid filter configured to extract a small droplet in the fluid moving through the flow path. the first fluid filter is coupled in series with the second fluid filter. The first fluid filter is positioned upstream of the second fluid filter. An outlet port of the second fluid filter is coupled to an inlet port of a non-fluid filter.

An insufflating surgical instrument adapted for movement across an abdominal wall to insufflate an abdominal region of a patient is disclosed. The instrument comprises a shaft having an insufflation channel extending between a proximal end and a distal end, the insufflation channel being adapted for connection to a source of fluid under pressure at the proximal end. A tip is at the distal end and a vent hole is formed in the tip being in connection with the insufflation channel and adapted to expel fluid under pressure to insufflate the abdominal region. The tip is formed of a transparent material to facilitate visualization of the abdominal wall and region. The shaft includes a lumen extending along the axis between the proximal end and the distal end to enable insertion of a laparoscope. The lumen and insufflation channel may be formed as separate channels or as one shared channel.

A hemodialysis system configured to purge air from a blood circuit comprises a dialyzer; a dialysis fluid circuit operable with the dialyzer via dialysis fluid inlet and outlet lines, the dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; the blood circuit operable with the dialyzer and including an arterial line, a venous line, a blood pump operable with the arterial line upstream of the dialyzer, a physiologically acceptable fluid source in fluid communication with the arterial line upstream of the blood pump, a drip chamber located along the venous line, and a container for accepting air purged from the blood circuit; and an air purging scheme wherein, with the dialysis fluid inlet and outlet lines connected to the dialyzer, the blood pump pumps a fluid through the dialyzer and into the drip chamber, forcing air from the drip chamber into the container.

A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.

A nozzle assembly for cooling a treatment area with a fluid comprises a first fluid outlet and a second fluid outlet operable individually as well as simultaneously and arranged apart such that the fluid covers a first portion of the treatment area if only the first fluid outlet is operated, a second portion of the treatment area if only the second fluid outlet is operated (wherein the second portion is not fully contained in the first portion), and a third portion of the treatment area if both the first fluid outlet and the second fluid outlet are operated (wherein the third portion is not fully contained in the first portion and/or the second portion).