3941results about How to "Low flow resistance" patented technology

This relates to methods and devices for treating reversible chronic obstructive pulmonary disease, and more particularly, relates to a device for exchanging energy with airway tissue such as that found in the airway of human lungs. The exchange of energy with this airway tissue in the airways reduces the ability of the air ways to constrict and / or reduces the resistance within the airway to the flow of air through the airway. This also relates to a method for decreasing responsiveness or decreasing resistance to airflow of airways involves the transfer of energy to or from the airway walls to prevent or reduce airway constriction and other symptoms of lung diseases. The treatment reduces the ability of the airway Lo contract during an acute narrowing of the airways, reduces mucus plugging of the airways, and / or increases the airway diameter. The methods according to the present invention provide a longer duration and / or more effective treatment for lung diseases than currently used drug treatments, and obviate patient compliance issues. This also includes additional steps that reduce the ability of the lung to produce at least one of the symptoms of reversible obstructive pulmonary disease and to reduce the resistance to the flow of air through a lung.

This relates to a device for treating lung disease, and more particularly, relates to a device for exchanging energy with airway tissue such as that found in the airways of human lungs. The exchange of energy with this airway tissue in the airways reduces the ability of the airways to constrict and / or reduces the resistance within the airway to the flow of air through the airway.

In a disk array device for cooling respective sections including a HDD by a fan, drop of cooling efficiency by the difference of conditions of HDD mounted and unmounted sections is prevented and the use of a dummy HDD is deleted / eliminated. A housing contains a HDA mounted on the HDD, a power controller board for performing control to the HDD, a power unit for supplying power to each section, a fan for cooling the housing therein, and a backboard for connecting all the sections. On one backboard surface, the HDA is mounted, which has a cooling function for making cooling air flowing in the housing and exhausting air from the housing via a region on which the HDA are mounted and via a vent hole on the backboard. For the vent hole, a shutter is mounted, which has a mechanism for adjusting an open area rate of the vent hole by opening when the HDA is mounted and closing when removed.

The invention discloses a produce method for concavo-convex bar ceramsite filtering material. Wherein, the said filter material comprises concavo-convex bar clay, coal gangue and volcanic ash, and is produced by burdening, milling, granulating, baking, screening and packaging. The filter material has rough surface, well bonding film property, small flow resistance, and well stability and adsorption properties. This invention needs low cost and baking temperature, can save much energy, has no secondary pollution and fit to water purification treatment.

A flow connector comprises first and second flowpath components engageable in an engagement direction. The first and second components have respective ports defining a flow path therebetween. The connector further comprises a sealing member moveable in the engagement direction between a first position between said ports and in said flow path, in which flow between said ports is prevented, and a second position not between said ports and out of said flow path, in which flow between said ports is permitted.