Abstract: A nasogastric tube contains: a body, a plug, and a pH (potential of hydrogen) sensor. The body includes a feeding portion, a discharging portion, and a conduit. The feeding portion has a cap, and the discharging portion has multiple through orifices. The plug includes a connecting portion and a protruded portion. The protruded portion has a smooth surface. The pH sensor is injection molded to integrate into the plug, and the pH sensor includes a pH sensing element and two antennas. The pH sensing element is made of conducting material which is configured to produce different voltage response with a pH ion concentration in gastric juice. The pH value of the gastric juice measured by the pH sensing element is wirelessly send by the two antennas to a reader, and the pH value of the gastric juice measured is displayed on the reader.

Abstract: A pico projector includes a housing, a lens, a light engine, a control module and a central processing module. The housing includes a main body and a cover. The lens is disposed in the housing. The light engine is disposed in the housing and configured to produce light including image signals and project the light through the lens. The control module is configured to provide a control signal. The central processing module is disposed in the housing and configured to rotate or move the cover with respect to the main body according to the control signal so as to create an opening for enhancing heat dissipation of the interior of the housing.

Abstract: A nasogastric tube includes a connector. The connector has a first connection end, a second connection end and a flow channel formed through the connector. The first connection end is connected to a first tube, and the second connection end has a positioning sleeve formed thereon. The positioning sleeve has a connection part extended from the flow channel and jointing with an assembling part of the second tube. The first tube of nasogastric tube of the present invention can be inserted to a stomach from a nasal cavity, and then the connector is placed in the nasal cavity, and the positioning sleeve is fixed in the nostril. The second tube can be detached from the connector when not being used.

Abstract: A pico projector system and an additional thermal dissipating method for the pico projector system are provided. The pico projector system includes a pico projector main body and a thermal dissipating module. The additional thermal dissipating method includes the steps of thermally dissipating the pico projector main body; externally connecting the thermal dissipating module to the pico projector main body; and thermally dissipating the pico projector main body by the thermal dissipating module.

Abstract: A pico projector includes a housing, a lens, a light engine, a control module and a central processing module. The housing includes a main body and a cover. The lens is disposed in the housing. The light engine is disposed in the housing and configured to produce light including image signals and project the light through the lens. The control module is configured to provide a control signal. The central processing module is disposed in the housing and configured to rotate or move the cover with respect to the main body according to the control signal so as to create an opening for enhancing heat dissipation of the interior of the housing.

Abstract: A nasogastric tube includes a connector. The connector has a first connection end, a second connection end and a flow channel formed through the connector. The first connection end is connected to a first tube, and the second connection end has a positioning sleeve formed thereon. The positioning sleeve has a connection part extended from the flow channel and jointing with an assembling part of the second tube. The first tube of nasogastric tube of the present invention can be inserted to a stomach from a nasal cavity, and then the connector is placed in the nasal cavity, and the positioning sleeve is fixed in the nostril. The second tube can be detached from the connector when not being used.

Abstract: A pico projector system and an additional thermal dissipating method for the pico projector system are provided. The pico projector system includes a pico projector main body and a thermal dissipating module. The additional thermal dissipating method includes the steps of thermally dissipating the pico projector main body; externally connecting the thermal dissipating module to the pico projector main body; and thermally dissipating the pico projector main body by the thermal dissipating module.

Abstract: An automatic focus system of a projector includes a projecting module, an image catching module, a memory, a micro processor, and a focusing module. The projecting module has an image light source to provide image light, and a projecting lens to project the image light on a screen. The image catching module senses an image on the screen. The microprocessor calculates the sensed image to have a definition value of the image and save the definition value in the memory. The focusing module may move the projecting lens is moved along an optical axis under a control of microprocessor. The microprocessor compares the definition values to control the focusing module to move the cam to a position where the projector may project a clear image on the screen.

Abstract: An auxiliary positioning device for an ultrasonic apparatus is disclosed herein, which is installed on an ultrasonic probe. The auxiliary positioning device includes a fixing member, an adjusting member being flexible and coupled with the fixing member at one end thereof, a parallel light source coupled with the other end of the adjusting member and having a projection hole for passing a parallel light beam emitted from the parallel light source, and a cylindrical lens mounted on one end of the parallel light source in front of the projection hole, whereby the parallel light beam becomes a fanned light beam after it passes through the cylindrical lens. The auxiliary positioning device of the present invention can provide a high precise positioning for diagnosis and treatment.

Abstract: An auxiliary positioning device for an ultrasonic apparatus is disclosed herein, which is installed on an ultrasonic probe. The auxiliary positioning device includes a fixing member, an adjusting member being flexible and coupled with the fixing member at one end thereof, a parallel light source coupled with the other end of the adjusting member and having a projection hole for passing a parallel light beam emitted from the parallel light source, and a cylindrical lens mounted on one end of the parallel light source in front of the projection hole, whereby the parallel light beam becomes a fanned light beam after it passes through the cylindrical lens. The auxiliary positioning device of the present invention can provide a high precise positioning for diagnosis and treatment.

Abstract: An auxiliary positioning device for an ultrasonic apparatus is disclosed herein, which is installed on an ultrasonic probe. The auxiliary positioning device includes a fixing member, an adjusting member being flexible and coupled with the fixing member at one end thereof, a parallel light source coupled with the other end of the adjusting member and having a projection hole for passing a parallel light beam emitted from the parallel light source, and a cylindrical lens mounted on one end of the parallel light source in front of the projection hole, whereby the parallel light beam becomes a fanned light beam after it passes through the cylindrical lens. The auxiliary positioning device of the present invention can provide a high precise positioning for diagnosis and treatment.

Abstract: An aiming device for a billiard cue is disclosed herein, which includes a fixing member, an extending member coupled with the fixing member at one end thereof, a parallel light source coupled with the other end of the extending member and having a projection hole for passing a parallel light beam emitted from the parallel light source, and a cylindrical lens mounted on one end of the parallel light source in front of the projection hole, whereby the parallel light beam becomes a fanned light beam after it passes through the cylindrical lens. The aiming device of the present invention can provide a high precise aiming in billiards.