摘要:
A mass flow controller has a sensor section that generates an electrical signal, dependent on the measured flow rate. The controller sends a control signal to a magnetic field generating unit, dependent upon the actual flow rate and the desired flow rate, which in response, generates a magnetic flux in the direction of the fluid input to the fluid output through the body of the controller. This means that the magnetic flux is concurrent with the fluid flow within the mass flow controller body. The magnetic flux alters the position of a plunger button assembly, located between the bypass chamber and the fluid output, relative to an orifice plate to control the flow rate to obtain the desired output flow. By incorporating the proportional control valve within the mass flow controller body, the need for a separate and large valve section is eliminated, reducing the size and cost of the controller.
摘要:
An apparatus and method for treatment of patients suffering from lymphedema. The apparatus includes a multiple chamber sleeve positioned in a wrap around fashion on a body extremity to be treated. The chambers are sequentially inflated and maintained so until all chambers are inflated and then all the chambers are simultaneously deflated except the proximal end chamber to move edema fluids out of the afflicted area. The apparatus includes the capability of applying interferential therapy either alone or in combination with compression therapy. Advantageously, the sleeve chambers capture pressurized air when applied thereto, at designated locations, so as to form air pockets that can selectively apply isolated points of pressure, and in combination with the application of electrical current to a patient's affected area, provide effective lymphedema therapy without disrupting normal vascular and lymphatic functioning.
摘要:
A mass flow controller has a sensor section that generates an electrical signal, dependent on the measured flow rate. The controller sends a control signal to a magnetic field generating unit, dependent upon the actual flow rate and the desired flow rate, which in response, generates a magnetic flux in the direction of the fluid input to the fluid output through the body of the controller. This means that the magnetic flux is concurrent with the fluid flow within the mass flow controller body. The magnetic flux alters the position of a plunger button assembly, located between the bypass chamber and the fluid output, relative to an orifice plate to control the flow rate to obtain the desired output flow. By incorporating the proportional control valve within the mass flow controller body, the need for a separate and large valve section is eliminated, reducing the size and cost of the controller.
摘要:
A mass flow controller has a sensor section that generates an electrical signal, dependent on the measured flow rate. The controller sends a control signal to a magnetic field generating unit, dependent upon the actual flow rate and the desired flow rate, which in response, generates a magnetic flux in the direction of the fluid input to the fluid output through the body of the controller. This means that the magnetic flux is concurrent with the fluid flow within the mass flow controller body. The magnetic flux alters the position of a plunger button assembly, located between the bypass chamber and the fluid output, relative to an orifice plate to control the flow rate to obtain the desired output flow. By incorporating the proportional control valve within the mass flow controller body, the need for a separate and large valve section is eliminated, reducing the size and cost of the controller.
摘要:
A mass flow controller has a sensor section that generates an electrical signal, dependent on the measured flow rate. The controller sends a control signal to a magnetic field generating unit, dependent upon the actual flow rate and the desired flow rate, which in response, generates a magnetic flux in the direction of the fluid input to the fluid output through the body of the controller. This means that the magnetic flux is concurrent with the fluid flow within the mass flow controller body. The magnetic flux alters the position of a plunger button assembly, located between the bypass chamber and the fluid output, relative to an orifice plate to control the flow rate to obtain the desired output flow. By incorporating the proportional control valve within the mass flow controller body, the need for a separate and large valve section is eliminated, reducing the size and cost of the controller.
摘要:
An apparatus and method for treatment of patients suffering from lymphedema manifested at various locations of the human body. The apparatus includes a multiple chamber sleeve to be positioned in a wrap around fashion on a body extremity to be treated by compression therapy. The chambers are sequentially inflated and maintained so until all chambers are inflated and then all the chambers are simultaneously deflated so as to move edema fluids out of the afflicted area and to stimulate the lymphatic system. The apparatus also includes the capability to measure the biological impedance of the extremity under treatment as a treatment parameter as well as applying interferential therapy either alone or in combination with compression therapy. Advantageously, the sleeve chambers capture pressurized air when applied thereto, at designated locations, so as to form air pockets that can selectively apply isolated points of pressure, and in combination with the application of electrical current to a medical patient's affected area, provide effective lymphedema therapy without disrupting normal vascular and lymphatic functioning.
摘要:
A cellulose/silica composite useful as a filter material is highly selective towards a solute that has been molecularly imprinted upon an inorganic gel coating formed on the cellulose. The filter material provides dual filtering functionality, as both a selective molecular sieve and as a particulate filter. A unique method for making the filter material is also set forth that imparts these attributes and performance capabilities.
摘要:
A mass flow controller has a sensor section that generates an electrical signal, dependent on the measured flow rate. The controller sends a control signal to a magnetic field generating unit, dependent upon the actual flow rate and the desired flow rate, which in response, generates a magnetic flux in the direction of the fluid input to the fluid output through the body of the controller. This means that the magnetic flux is concurrent with the fluid flow within the mass flow controller body. The magnetic flux alters the position of a plunger button assembly, located between the bypass chamber and the fluid output, relative to an orifice plate to control the flow rate to obtain the desired output flow. By incorporating the proportional control valve within the mass flow controller body, the need for a separate and large valve section is eliminated, reducing the size and cost of the controller.