318 results about "Aspirator" patented technology

The present invention is concerned with a vacuum release suction device for regulating and controlling suction in an aspiration line, and which may be included in aspirators such as for example dentistry, surgery, or cosmetic tools. When operated, such tools generally generate noise which may become harmful to the tool user or for the patient on which the tool is used. More specifically, the suction device of the present invention includes a body having an inlet port and an outlet port defining a chamber in the body and a bypass inlet intersecting the chamber at an acute angle with respect to the longitudinal axis of the chamber, such that a main fluid stream is generated with minimized occurrences of flow separation, turbulence and therefore minimized generated aerodynamic noise.

The present invention provides an apparatus and method for efficiently dislodging and extracting at least a portion of solid materials from one or more reactor tubes of shell-and-tube reactors without damage to at least a portion of the solid materials which would otherwise render the solid materials unsuitable for re-use. The apparatus has at least one rod, a rotator assembly for rotating the rod, and a transmission assembly for applying an axially-directed force to insert the rod into a corresponding reactor tube and dislodging solid materials therein. The rod is also in fluid communication with an aspirator for extraction of dislodged solid materials. When the apparatus has more than one rod, they are arranged in a configuration matching the pattern of the reactor tubes and each rod is in axial alignment with a corresponding reactor tube. The method involves the steps of inserting one or more rods into corresponding reactor tubes, dislodging at least a portion of the solid materials, while minimizing damage to the solid materials or the tubes by rotating and applying an axially directed force to the rods as they contact the solid materials. The dislodged solid materials are then extracted from the reactor tubes. The method may further involve tracking and communicating the completed steps for each reactor tube by placing and replacing indicators on the reactor tubes, thereby enabling an operator to determine which step to perform next.

A method and apparatus provides for dispensing a liquid concentrate. The source pressure of a liquid diluent is changed by a boost pump (52) to bring the pressure of the diluent to an elevated pressure. The diluent then enters an aspirator assembly (10) wherein the concentrate and diluent are mixed to form a use solution. The dynamic pressure of the diluent entering the aspirator assembly (10) is sufficient so that the amount of concentrate delivered over time is more constant.

An improved surgical instrument for the removal of previously fragmented tissues and fluids from a patient through a small incision including a multi-lumen cannula, one lumen of which is used to supply an irrigating fluid to suspend and dilute the fragmented tissue and the other lumen for the application of suction to remove the tissue and fluids. The second lumen has a resistive ratio that is between 0.5 and 1.5 times the resistive ratio of the first lumen.

A disposable cushioned aspirator which forms part of a dental or medical aspirating system. The disposable cushioned aspirator appliance described herein is intended principally to be used in dental procedures where bodily fluids and rinse water is evacuated from a patient's mouth, but the invention has application in medical procedures and various other applications as well. An elongate tubular element having a patient end and a connection end is exteriorly lined with a layer of soft cushioning material such as a soft polymer material, rubber or a porous foam material to protect the soft tissues in and around the mouth of a patient. The elongate tubular aspirator is capable of being manually bent from an initially straight configuration to a curved or other desired configuration and is provided with a structural member extending along its length and being pliable to permit bending and yet of sufficient structural integrity to maintain the aspirator in the desired configuration during use. The structural member is preferably a wire element which is embedded within or attached to the elongate tubular element.

The invention discloses a multifunctional spraying robot. The multifunctional spraying robot comprises a bottom plate which is arranged on a slide base, wherein a threaded slide block which is fixedly connected with the bottom plate is arranged in the slide base; the threaded slide block is connected on a threaded rod; a fixed mechanical arm is arranged at the inclined upper side of a base; the fixed mechanical arm is hinged with a movable mechanical arm; the movable mechanical arm is hinged with a first rotary mechanical arm; the fixed mechanical arm is hinged with an auxiliary small arm; the auxiliary small arm is hinged with a second auxiliary small arm; the second auxiliary small arm is hinged with the first rotary mechanical arm; the front end of the first rotary mechanical arm is rotatably connected with a rotary mechanical arm; the front end of the rotary mechanical arm is hinged with a second rotary mechanical arm; the second rotary mechanical arm is connected with a spraying bracket through a rotary table; the front end of the spraying bracket is connected with a spray head; the front end of the spraying bracket is equipped with an infrared ray scanner and a camera; a gas collecting cover is connected with an aerosol recycling tank; the aerosol recycling tank is connected with a micro aspirator pump; and the camera and the infrared ray scanner are connected with a control module. The multifunctional spraying robot is stable in structure, is stable in operation, and realizes automatic spraying and processing, and free travelling.

Certain example embodiments of this invention relate to techniques for edge deleting coatings supported by coated articles while a temporary protective coating is applied thereto. More particularly, a stationary, enlarged, and higher powered aspirator is connected to flexible tubing, which itself has an enlarged diameter, that has a nozzle located proximate to a grinding wheel on an edge deletion unit is provided in connection with an edge deletion table. Advantageously, the edge deletion table and aspirator of certain example embodiments are capable of performing edge deletion and removal of a temporary protective coating substantially simultaneously (e.g., from a common area of interest), during which process the debris produced when edge deletion is performed is controlled and removed from the substrate of interest.

The wound dressing combines an integrated mechanical aspirator for drawing exudate and fluids from the wound site and an internal absorbent pad for collecting exudate and fluids within the wound dressing. The collection pad has multi-layers including a layer of hyper-absorbent material, which acts as the fluid collection medium. The aspirator is a type of simple bulb syringe, which is integrated into top of the wound dressing in fluid communication with the collection pad. The aspirator has a hollow bulb head and a one-way purge vent. The vent allows air to be purged from the bulb head when manually compressed. Once compressed, the structural and material resilience of the bulb head causes its walls to expand back to their original shape thereby creating a vacuum (negative) pressure within the bulb head that assists in drawing exudate and fluids from the wound site into the collection pad.

The invention discloses a structure-compact-type reciprocating aspirator and breast pump. The structure-compact-type reciprocating aspirator is applied to the field needing small-displacement vacuum aspiration, a power motor unit used for providing original moment and an air cylinder driving unit used for converting power into internal capacity deformation to output suction force are parallelly arranged on a same side face of a gear transmission unit used for performing speed reduction and reversing to the original moment and connected with the same, the gear transmission unit and a synchronous belt transmission mechanism are integrally designed in a same gearbox, large suction force and high efficiency functions are realized while the volume is reduced by a half compared with same level in the prior art, and the objective of portability is realized; and the structure-compact-type reciprocating aspirator is firm and reliable in structure, and the design of multiple damping and noise reducing is applied to realize muting effect.

An aspirator assembly for inflating an emergency slide is disclosed. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port. The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

The invention discloses a nasal cavity channel diameter detection tube and relates to the field of medical consumables. The detection tube is provided with a detection tube body, wherein the front end of the detection tube body is provided with a guide part which is small in front and big in back, and the outer side of the detection tube body is provided with a length mark; the upper portion and the lower portion of the tube wall of the guide part are provided with through holes, a measuring air bag is arranged outside the portion, behind the guide part, of the detection tube body and connected with an inflator through an inflatable pipe via a one-way valve, and the inflator is provided with a scale which corresponds to the diameter of the measuring air bag and reflects the air injection amount; the detection tube body is connected with a breathing machine or an aspirator through an inlet and can provide an oxygen supply channel or suck secreta in the nasal cavity. The detection tube can achieve measurement of the passing diameter of the nasal cavity channel to provide a basis for choosing a proper cannula or catheter for a nasal trachea cannula and avoid aspiration by mistake caused by nasal mucosa damage and bleeding when an improper cannula or catheter is adopted.

The present invention discloses one kind of medical suction apparatus, which includes a suction head, a suction tube joint, a suction tube, a diaphragm pump with exhaust tube, a funnel-shaped dirty fluid bottle with a filtering and sterilizing unit set to the suction tube, a metal hose lamp and a duct nozzle set on the suction tube joint, and a supplying unit to supply ozone water. The suction apparatus can sterilize and filter dirty fluid and air and exhaust dirty fluid or gas while sucking. Its supplying unit can provide sterilizing liquid, ozone water and ozone gas for the surgical operation and to the surgical equipment.

The invention discloses a liftable floor brush for dust collectors, which comprises a suction nozzle chassis provided with a floor brush chamber, a suction nozzle upper cover combined with the suction nozzle chassis, a host machine seat movably connected with the suction nozzle chassis, as well as a height regulating device arranged on the host machine seat. The floor brush is characterized in that the height regulating device comprises a swing body which can swing around a fixed shaft in the vertical direction; mutually matched structures are arranged on the swing body and the suction nozzle chassis; the mutually matched structures at least have two working positions which can be changed by means of the swing of the swing body around the fixed shaft; in a first working position, the suction nozzle chassis is positioned on an initial position; and in a second working position, the suction nozzle chassis drops or rises by one height relative to the initial position in the vertical direction. The floor brush can allow people to apply force in the vertical direction to the height regulating device, for example, the height regulation of the floor brush is carried out through a treading mode, thereby saving time and labor. Moreover, the floor brush has the advantages of simple structure and convenient operation, and is suitable to be combined with various vertical / horizontal dust collectors and popularized.

A blower assembly for use with an HVAC module is provided. The blower assembly includes a scroll or volute shaped housing having an air inlet in a wall of the housing for receiving air to be blown by an impeller, and an air outlet from which the blown air passes from the housing. A blower wheel is secured to a rotatable motor-driven shaft extending along a central axis of the air inlet. At least one venture is provided adjacent to the air inlet of the housing, the at least one venturi connectable to an aspirator that is in fluid communication with a sensor unit. Wherein, during operation, the blower wheel pulls air both through the air inlet to the housing and through the at least one venturi.

A particulate blaster assembly (100) for use as an attachment to a portable air blower (150) includes an air directing tube (110), a vacuum generating assembly (120), and a particulate material aspirator (130). The air directing tube (110) has an inlet end (112) formed for coupling to the air blower (150) to receive air discharged therefrom and a movable exhaust end (114) formed for discharge of air and particulate material (212) entrained in the air toward a target site (160). The vacuum assembly (120) is coupled to the air directing tube (110) and formed to produce a partial vacuum as air passes in the tube (110) over the vacuum generating assembly (120). The particulate material aspirator (130) is coupled to the vacuum assembly (120) and is responsive to the partial vacuum generated by the vacuum generating assembly (120) to aspirate a particulate material (212) from a particulate material source (340) into the air directing tube (110) for acceleration and discharge of the entrained particulate material (212). Preferably, a positive pressure, generating assembly (182) communicates positive pressure to aspirator (130) for cooperation with the partial vacuum at the aspirator (130) to aspirate particulate material (212) into the air directing tube (110).

The invention relates to a smoke detection unit (10) with a housing, especially used on ships to detect smoke in sample gas. The unit comprises a smoke detection device integrated in the housing, at least an inlet for the sample gas, devices (5,7) connected with an aspirator (6) used for the sample gas, and / or the aspirator for the sample gas, and a signal output end (2). The smoke detection unit is simple in installation, small in space occupation, and can be preferably integrated in a shipborne monitoring system. The smoke detection unit has an additional singal connection device, used to electrically connect with at least a detection device arranged in a remote manner and preferably electrically connect with data lines of other smoke detection devices, and at least a communication and analysis unit used to communicate with the remote detection device through a signal connection device, or the smoke detection device is provided with a dust filter and / or a sample room is provided with a device used for air flow monitoring.

Certain example embodiments of this invention relate to techniques for edge deleting coatings supported by coated articles while a temporary protective coating is applied thereto. More particularly, a stationary, enlarged, and higher powered aspirator is connected to flexible tubing, which itself has an enlarged diameter, that has a nozzle located proximate to a grinding wheel on an edge deletion unit is provided in connection with an edge deletion table. Advantageously, the edge deletion table and aspirator of certain example embodiments are capable of performing edge deletion and removal of a temporary protective coating substantially simultaneously (e.g., from a common area of interest), during which process the debris produced when edge deletion is performed is controlled and removed from the substrate of interest.

A VMD system and method uses an aspirator to generate a vacuum pressure for drawing permeate from a membrane module. The aspirator generates the vacuum pressure by receiving and passing a circulating liquid and combines the permeate with the circulating liquid such that the permeate condensates in the circulating liquid. Using an aspirator (e.g., instead of a vacuum pump) allows a more efficient and cost-effective operation of the VMD system and method, particularly in a desalination application. A VMD system and method using an aspirator may be used in desalination and other applications including, without limitation, environmental cleanup (e.g., removal of volatile organic chemicals from water) and food and medical applications.

The invention discloses a method for controlling a waste heat recovery system of a kiln. A quench section of a roller kiln of the system is provided with a quench fan and a heat exchange box body internally provided with a heat exchanger, is communicated with a spray drying tower through a first pipeline, and is partitioned from a quench channel; a tail cooling section is provided with a waste heat fan and an aspirator, and is communicated with the heat exchange box body through a second pipeline, and the second pipeline is provided with a discharge flue; and the waste heat recovery system also comprises a first control valve, a second control valve, a third control valve and a fourth control valve which are arranged on the discharge flue, the second pipeline, the first pipeline and a pipeline of a hot air furnace of the spray drying tower respectively. The method comprises the steps of: acquiring the temperature of tail cooling air of the tail cooling section of the roller kiln; and judging whether the temperature of the tail cooling air is higher than the preset kiln temperature, outputting a first control valve closing signal as well as second control valve, third control valve and fourth control valve opening signals if the temperature of the tail cooling air is higher than the preset kiln temperature; and outputting a first control valve opening signal as well as second control valve, third control valve and fourth control valve closing signals if the temperature of the tail cooling air is not higher than the preset kiln temperature. The invention also discloses a device for controlling the waste heat recovery system of the kiln. The method and the device can reduce operation strength and difficulty, improve control accuracy, and prevent the misoperation.

The invention discloses an irrigating aspirator. The irrigating aspirator comprises a spray head assembly, an outer pipe, an inner pipe, a handle assembly and a valve, wherein the spray head assembly comprises an outer pipe connecting sleeve and an inner pipe connecting sleeve; an annular water spray opening is formed between the front end part of the outer pipe connecting sleeve and the front end part of the inner pipe connecting sleeve; the handle assembly comprises a handle body and a negative pressure control part; an air inlet is formed in the negative pressure control part; the spray head assembly, the outer pipe and the inner pipe are respectively and integrally formed by adopting plastic; the handle assembly is formed by fixedly connecting a left half body and a right half body which are symmetrical; during use, the air inlet is pressed by using a thumb, an outside negative pressure source is opened, the valve is opened, and then water irrigates a part needing to be irrigated; the front end of the outer connecting sleeve of the spray head assembly is in a conical surface, so that sprayed water can be gathered to a point at the front end of an aspiration hole; the aspiration hole of the spray head assembly is enabled to align to a part needing to be aspirated and irrigated, and then pollutants attached to the surface can be aspirated into the irrigating aspirator from an aspiration opening of a water spraying assembly.

An apparatus for removing fluids from a vacuum flow path comprises a body defining a containment chamber having an inlet port connectable to a vacuum hose and a barrier wall within the containment chamber isolating a transfer chamber within the containment chamber. The containment chamber has an outlet port connectable to a vacuum hose. The transfer port has a suction port fluidicly connecting the transfer chamber and the containment chamber. The apparatus further comprises a float positioned below the transfer port and adapted to be raised into sealing contact with the transfer port as a fluid level in the containment chamber rises.

A leakage detector for an evaporated-fuel treatment device (10) includes: the evaporated-fuel treatment device (10) including a fuel tank (20), a canister (30), and a fuel pump (21); a purge valve (32) and an air-passage valve (35) that maintain the interior of a treatment system of the evaporated-fuel treatment device (10) in a sealed state; a sealing valve (41) and a shutoff valve (43) that canshut off communication between the fuel tank (20) and the canister (30) to section the interior of the treatment system into a first region including the fuel tank (20) and a second region including the canister (30); and an aspirator (50) that applies a negative pressure to the second region. The leakage detector for the evaporated-fuel treatment device (10) determines the presence / absence of leakage in the first region on the basis of a change in the pressure in the first region while an engine (12) is stopped and determines the presence / absence of leakage in the second region on the basis of a change in the pressure in the second region by applying a negative pressure to the second region while the engine (12) is operated.

The invention provides a system and a method for advanced geological prediction of TBM-carried radioactive radon. The radon concentration testing module mounted on the TBM comprises an air radon concentration testing unit and a water radon testing unit; the air radon concentration testing unit comprises an air collecting bag and a first drying pipe which are connected in sequence, a filter membrane is arranged between the air collecting bag and the first drying pipe, an aspirator pump is arranged at one end of the first drying pipe, and the other end of the first drying pipe is communicated toa continuous radon measuring instrument through a pipeline; the water radon testing unit comprises a diffusion bottle; a water taking device is arranged in the diffusion bottle, the diffusion bottleis connected with one end of a second drying pipe, and the other end of the second drying pipe is connected to the continuous radon measuring instrument through a pipeline; the continuous radon measuring instrument measures the radon content in air and water, transmits the radon content to the data processing and analyzing module so as to analyze and calculate the radon concentration, thus monitoring the radon concentration in the TBM tunnel for a long time, and providing a radon concentration curve graph and an abnormal lower limit in real time.

An improved negative-pressure aspirator comprises a liquid storage bottle, a catheter and a negative-pressure machine. The liquid storage bottle is provided with a bottle plug and is connected with the negative-pressure machine through the catheter on the bottle plug, the lower end of the liquid storage bottle is provided with a liquid discharging pipe, the end, close to the liquid storage bottle, of the liquid discharging pipe is provided with a left-right push-type switch, the bottle plug is further provided with a cleaning pipe and a sucking pipe, the sealed end of the cleaning pipe penetrates through the bottle plug and is arranged in the liquid storage bottle, cleaning holes are distributed in the pipe wall of the sealed end of the cleaning pipe, a cleaning valve is arranged at the other end of the cleaning pipe, a suction port of the sucking pipe is formed at the end, connected with a stomach pipe, of the sucking pipe, and the sucking pipe is provided with a sucking valve. The bottom of the liquid storage bottle of the negative-pressure aspirator is provided with the liquid discharging pipe, the stomach pipe does not need to be frequently pulled open, gastric juice can be poured in a daily drainage mode, the pollution possibility is reduced, work is facilitated, the bottle plug of the liquid storage bottle is provided with the cleaning pipe, cleaning work can be carried out without the need of taking down the liquid storage bottle from the negative-pressure machine, and the work load of nurses is greatly reduced.

The invention discloses an intelligent separation system and an intelligent separation method for microbes in cavity contents. The intelligent separation system comprises a press button, a controller, a display screen, a motor, a stirring device (41), a liquid adding drive device (7), a vibrating device (12), a bacterial liquid drive device (6) and at least one aspirator pump, wherein the press button is used for inputting a control signal, a control signal input end of the press button is connected with a signal input end of the controller, a signal display end of the controller is connected with the display screen, control signal output ends of the controller are respectively connected with corresponding signal input ends of the motor, the liquid adding drive device (7), the vibrating device (12), the bacterial liquid drive device (6) and the at least one aspirator pump, and an output shaft of the motor is connected with the stirring device (41). With the adoption of the system and the method, the automatic filling is realized, the content of bacteria in the impurities is reduced, the bacteria collecting rate and the purity of the bacterial liquid are improved, the odour leakage is avoided, and the treating efficiency is high.

A magnetic flow switch (1) is described that includes a body (2) defining a chamber (20) destined to have a fluid flow pass through it, an excitation magnet (4) placed in a shuttle (3) mounted such that it can slide within the chamber (20) of the body to pass from an initial front position to a final rear position, a Reed switch (6) arranged on the body (2) of the flow switch to detect the magnetic field generated by the displacement of the excitation magnet (4) and to accordingly send a control signal to an electronic control board, and at least one attraction magnet (7) arranged on the body (2) of the flow switch, in a position such as to generate an attraction magnetic field able to attract the excitation magnet (4) to make the shuttle (3) move to the initial front position.