摘要:
The embodiments include method of nonlinear optical photodynamic therapy of tissue including the steps of providing pulsed infrared laser light for two-photon excited fluorescence tissue exposure, and selectively focusing the pulsed infrared laser light within the tissue at a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue. The invention is also directed to an apparatus for performing nonlinear optical photodynamic therapy of tissue including a pulsed infrared laser for providing two-photon excited fluorescence beam tissue exposure, a scanner for selectively and controllably moving the tissue and the beam relative to each other, and optics for selectively focusing the pulsed infrared laser light within the tissue at a point in a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue.
摘要:
The embodiments include method of nonlinear optical photodynamic therapy of tissue including the steps of providing pulsed infrared laser light for two-photon excited fluorescence tissue exposure, and selectively focusing the pulsed infrared laser light within the tissue at a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue. The invention is also directed to an apparatus for performing nonlinear optical photodynamic therapy of tissue including a pulsed infrared laser for providing two-photon excited fluorescence beam tissue exposure, a scanner for selectively and controllably moving the tissue and the beam relative to each other, and optics for selectively focusing the pulsed infrared laser light within the tissue at a point in a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue.
摘要:
The embodiments include method of nonlinear optical photodynamic therapy of tissue including the steps of providing pulsed infrared laser light for two-photon excited fluorescence tissue exposure, and selectively focusing the pulsed infrared laser light within the tissue at a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue. The invention is also directed to an apparatus for performing nonlinear optical photodynamic therapy of tissue including a pulsed infrared laser for providing two-photon excited fluorescence beam tissue exposure, a scanner for selectively and controllably moving the tissue and the beam relative to each other, and optics for selectively focusing the pulsed infrared laser light within the tissue at a point in a focal plane to activate a photosensitizing agent to generate free radicals within a highly resolved axial and lateral spatial domain in the tissue.
摘要:
A surface treating adapter device for use in combination with a recirculating abrading device includes an adapter housing affording a hollow cup-shaped chamber, an aperture in the housing to receive the discharge nozzle of an abrasive gun, an exhaust outlet including means for detachably engaging a low pressure line from the abrading device, interchangeable hollow working tool members, and tubular connecting members releasably and adjustably joining the adapter housing and a selected one of the tool members. The tool members which contact the surface to be abraded are each of varying configuration for accommodating surfaces of varying contour and for making a sealing engagement therewith. The abrading operation is performed within the confines of the tool member being used. Abrasive is introduced through the housing aperture and impinges upon the surface area enclosed by the tool member. The scale and debris, including the spent abrasive, are then drawn through the chamber of the housing and through the exhaust outlet to the abrading device, and there separated.
摘要:
A portable abrading cabinet device is provided for use in a recycling abrasive blasting system. The cabinet device includes a cup-shaped housing affording an inner blasting chamber. The forward open end of the housing has a peripheral resilient seal to provide airtight engagement with the surface to be abraded. The housing has an inlet aperture for the barrel of a sand blasting gun which delivers rapidly moving abrasive material to the surface to be worked. A funnel-shaped exhaust means in the housing terminates in a fitting which detachably receives a conduit connected to accommodate an external source of vacuum so that spent abrasive and debris may be removed from the inner blasting chamber of the cabinet housing. A transparent window member in the housing permits an operator to observe the abrading operation, the window member being partially shielded by a pair of deflectors which redirect ricocheting abrasive and debris within the cabinet housing. To further aid the observation of the operation, illuminating means are provided within the cabinet. The abrasive is introduced into, and recycled from, the cabinet housing by an appropriate external blasting system.
摘要:
A cabinet device is provided for use in combination with an abrasive blasting system. The inner chamber of the cabinet device is maintained at a pressure of less than ambient air pressure during an abrading operation by applying a source of vacuum to an exhaust outlet in the bottom of the cabinet below the article being abraded which is supported on a rack in the chamber. A blasting gun in the chamber is manipulated from outside the cabinet by an operator. An inlet for ambient air is located in the cabinet above the article on the rack and, during an abrading operation, establishes a continuous current of air downwardly toward the cabinet exhaust outlet to clear the space in the cabinet above the rack of view-obscuring debris and dust caused by the blasting operation. An improved sealing device between the cabinet cover and the peripheral sidewall of the cabinet housing is also provided.
摘要:
The invention provides, among other things, methods and systems for expanding CD133+ cells. The invention further provides methods and systems for increasing the blood flow to an ischemic tissue in a subject in need thereof, such as to ischemic myocardium. The invention further provides methods and systems for directing differentiation of expanded CD133+ cells. The invention further provides methods and systems for treating a subject with differentiated cells in a subject in need thereof.
摘要:
An abrasive surface treating device includes a gun connected to a pressurized air source, a housing containing a supply of abrasive material, an abrasive delivery line connected to the gun and having an aperture adjacent the housing outlet, a shroud to capture spent abrasive, and a vacuum source to draw spent abrasive and debris from the shroud back to the interior of the housing. The delivery of air at high velocity through the gun draws air through the abrasive delivery line via the aperture and thereby draws abrasive from the housing into the air stream flowing from the aperture to the gun so that the abrasive may be propelled against a work surface. The effective size of the aperture may be changed to alter the flow rate of various abrasive materials. In addition, the gun and abrasive delivery line may be connected to an adapter which, in turn, receives a shroud member having a configuration selected in accordance with the shape of the work surface.
摘要:
A picture screen comprising an upright standard, a leg unit supporting the standard, a roller adapted to receive a picture screen, a picture screen mounted on the roller and adapted to be unwound from a closed position to an open position, an elongated screen casing for receiving the roller and the screen coupled to the upright standard, and casing extensions integrally formed with the screen casing and each being provided with a speaker mounted therein. The speakers project the sound toward the viewer/listener to provide a lifelike effect with the picture projected on the screen.
摘要:
The invention provides, among other things, methods and systems for expanding CD133+ cells. The invention further provides methods and systems for increasing the blood flow to an ischemic tissue in a subject in need thereof, such as to ischemic myocardium. The invention further provides methods and systems for directing differentiation of expanded CD133+ cells. The invention further provides methods and systems for treating a subject with differentiated cells in a subject in need thereof.