A nasal aspirator capable of effectively preventing backflow and a control method thereof are disclosed. The nasal aspirator includes a casing, a control board, a lower suction nozzle, an upper suction nozzle, a liquid storage cup, and an air pump unit. The control board is disposed in the casing. The lower suction nozzle is disposed on an upper end of the casing. The lower suction nozzle has a chamber and a suction passageway therein. The chamber has an opening facing upward. An upper end of the suction passageway communicates with the chamber. A detection system for detecting a liquid is provided in the chamber. The detection system is connected to the control board.

A nasal device includes a tip member having a first end and a second end, the second end of the tip member being oppositely disposed relative to the first end, the tip member including a first wall disposed at the first end thereof, the first wall defining a first aperture configured to be in fluid communication with a nostril of a person; a cover member disposed over a portion of the tip member, the cover member including a second wall overlapping at least a portion of the first wall of the tip member, the second wall defining a second aperture configured to be in fluid communication with the nostril of the person and the first aperture of the tip member, the cover member configured to provide a seal with the nostril of the person; and a vacuum source or a fluid container coupled to the tip member.

Provided herein is a pre-Caesarean method for collecting amniotic fluid from a patient. A needle is inserted into the incision site for the future C-section, which may be under ultrasound guidance, through which the amniotic fluid is drawn under a low level suction and, optionally, gravity to a sterile collection container. The method encompasses filtering and/or irradiating the amniotic fluid to collect biomolecules of interest such as growth factors and/or stem cells. Also provided is the sterile amniotic fluid or filtrates thereof collected by the method described herein.

Disclosed are nasal aspirators with finger grips.

A body cavity fluid removal device includes a shaft having a first end, a second end opposite the first end, and an opening at the first end. A handle has a compressible body defining an interior volume. The handle is removably coupleable to the second end of the shaft. The handle is configured for inducing a suction force at the opening of the shaft.

Disclosed are various embodiments for an anti-reflux nasal aspirator that includes a nozzle comprising a nozzle outlet, a bulb configured to provide suction at the nozzle outlet in response to a squeezing force applied to the bulb, an anti-reflux coupler positioned between the bulb and the nozzle through which air passes from the bulb to the nozzle, and a one-way air valve positioned in an aperture located at a base of the bulb. The anti-reflux coupler may include a check valve configured to prevent reflux of debris into the bulb. The check valve may include one of an umbrella valve; a duckbill valve; a slit-cutting valve; and a flapper valve.

A nasal bulb aspirator that can be sized to fit the needs of infants through adults and is designed to ensure that the tip remains hygienically intact by a one-way valve and a counterbalance system that prevents the tip from touching surrounding surfaces, thereby limiting cross contamination from possibly resistant pathogens.

A wound treatment appliance is provided for treating all or a portion of a wound. In some embodiments, the appliance comprises an impermeable flexible overlay that covers all or a portion of the wound for purposes of applying a reduced pressure to the covered portion of the wound. In other embodiments, the impermeable flexible overlay comprises suction assistance means, such as channels, which assist in the application of reduced pressure to the area of the wound and removal of exudate from the wound. In other embodiments, the wound treatment appliance also includes a vacuum system to supply reduced pressure to the wound in the area under the flexible overlay. In yet other embodiments, the wound treatment appliance also includes wound packing means to prevent overgrowth of the wound or to encourage growth of the wound tissue into an absorbable matrix comprising the wound packing means. In still other embodiments, the appliance may include a suction drain. In other embodiments, the appliance may include a collection chamber to collect and store exudate from the wound. In yet other embodiments, a suction bulb may be used to provide a source of reduced pressure to an impermeable overlay that covers all or a portion of the wound. Finally, methods are provided for using various embodiments of the wound treatment appliance.

A wound treatment appliance is provided for treating all or a portion of a wound. In some embodiments, the appliance includes an impermeable flexible overlay for applying a reduced pressure to the covered portion of the wound. The wound treatment appliance may also include a vacuum system to supply reduced pressure to the wound in the area under the flexible overlay, a wound packing means to prevent overgrowth of the wound or to encourage growth of the wound tissue into an absorbable matrix including the wound packing means, a suction drain, a collection chamber to collect and store exudate from the wound, and/or a suction bulb which may be used to provide a source of reduced pressure to an impermeable overlay that covers all or a portion of the wound. Finally, methods are provided for using various embodiments of the wound treatment appliance.

The present disclosure illustrates a sensor-controlled nasal aspirator including a distance sensing unit, a micro processing unit and an air pump. The distance sensing unit is configured to sense a distance between a target object and the distance sensing unit. The micro processing unit is configured to store a preset distance, and receive and process the distance transmitted from the distance sensing unit, and transmit an action command signal when the distance is not higher than the preset distance. The air pump is configured to receive the action command signal and performs a target action according to the action command signal.