A breast milk pump comprising: a milk extraction assembly comprising a funnel configured to engage a breast of a user, said funnel comprising a flexible portion having a flexible portion inner surface for facing the breast and an opposite flexible portion outer surface; a stimulating mechanism facing the flexible portion outer surface and configured to manipulate the flexible portion; and a position adjustment mechanism configured to adjust a position of the stimulating mechanism with respect to the funnel, said position adjustment mechanism comprising at least one lever member articulated to the stimulating mechanism, the lever member being pivotable about a lever pivot axis, to move the stimulating mechanism.

Devices used to drain fluid are disclosed. The devices may be configured to drain fluid from a body cavity using a vacuum pressure. The devices include a reservoir and a vacuum generating member configured to expand the reservoir and generate a vacuum pressure within the reservoir. The devices can be configured to be shipped in a collapsed state.

A suction device includes a negative pressure generator, a connector and a mask; the negative pressure generator comprises a housing and a piston rod, wherein the housing is internally provided with a cavity, an upper end of the housing is provided with an avoidance hole communicated with the cavity, and a lower end thereof is provided with an opening communicated with the cavity; the piston rod comprises a push-pull rod and a piston sleeved on the push-pull rod, an upper end of the push-pull rod runs through the avoidance hole, and the piston is movably and hermetically connected to an inner side wall of the housing by means of a sealing ring; an upper side of the mask is provided with a through first connecting cylinder, and a lower side thereof is provided with a flexible annular pad configured to fit with the face.

A triple-chambered container includes: a main container body with a first chamber which has an opening at its distal end; a main barrel formed and movable longitudinally within the first chamber, the main barrel defining therein a second chamber for receiving fluids, the main barrel further having an apertured stopper at its distal end; a second barrel formed within the main barrel, the second barrel defining a third chamber for receiving fluids, the second barrel being movable longitudinally within and with respect to the main barrel, the second barrel having a distal end which is engageable and disengageable with the apertured stopper; a shaft adapted to fit within the second barrel, the shaft being movable longitudinally within and with respect to the second barrel, the shaft having a distal end which is engageable and disengageable with an aperture in the second barrel; a device for controlling engaging and disengaging of the distal end of the shaft with the aperture of the second barrel. The first chamber, the second chamber and the third chamber may be selectively moved to receive and discharge fluids with respect to one another.

This disclosure describes devices and methods used to inject or aspirate fluid into or from various regions of the human body, such as the anterior chamber of the eye. The disclosed devices and methods provide improvements over conventional devices and methods in that an operator can perform a procedure using the disclosed device without an assistant. The disclosed devices and methods allow one-handed injection or aspiration of fluid into or from body tissue, and provide means for controlling the volume of injected or aspirated fluid.

A closed system for harvesting fat through liposuction, concentrating the aspirate so obtained, and then re-injecting the concentrated fat into a patient comprises as its main components a low pressure cannula having between about 7 to 12 side holes of about 1-2 mm by 2.0 to 4.0 mm, a spring loaded syringe holder with a constant force or coiled ribbon spring to apply a substantially constant pressure over the fill excursion of the plunger, and a preferably flexible collection bag which is also preferably graduated, cylindrical over most of its body and funnel shaped at its bottom, all of which are connected through flexible tubings to a multi-port valve. The multi-port valve has two flutter/duck bill valves which restrict the fluid flow to a one way direction which effectively allows the syringe to be used to pump fat out of a patient and into a collection bag in a continuous manner. After the bags are centrifuged to concentrate the fat, the excess fluids are separated and the valve is re-connected to permit the syringe pump to reverse fluid flow to graft the concentrated fat back into the patient.

A screen exchange device for reducing the size of a biological tissue according to one embodiment comprises: a disk comprising a plurality of screens each having at least one through-hole configured to reduce the size of a biological tissue, the screens having different through-hole characteristics; a first cover which covers a first side of the disk and includes a first opening through which a biological tissue passes; a second cover which covers a second side of the disk and includes a second opening through which the biological tissue passes; a housing configured to receive the disk; and a manipulator which selects any one screen among the plurality of screens and manipulates the first cover or the second cover such that the selected screen communicates with the first opening and the second opening.

A handheld body cavity access device including a housing having a barrel, a handle extending from the barrel, and a cavity. The barrel includes a distal end, a proximal end, and a longitudinal axis. A catheter includes a proximal end coupled to the distal end of the housing, and a distal end spaced away from the housing. A guidewire assembly includes a guidewire and a slide carrying to the guidewire and slidably coupled to the barrel of the housing. The slide is movable relative to the housing between a first guidewire position and a second guidewire position. A needle assembly includes a needle, a needle hub, and a conduit, the needle hub carrying the needle and the conduit within the cavity of the housing. A syringe adapter is disposed in the cavity of the housing and adapted to couple to a syringe tip of a syringe.

An airway assist device and methods of making and using an airway assist device to assist in opening an airway or removing fluid or material obstructing an airway of a subject.

A catheter, a kit and a method of using the catheter for removing a thrombus from a blood vessel in a mammal. The catheter includes a tubular body with a hollow interior, an exterior surface, a proximal end, and a distal end and a plurality of protrusions extending upwardly from the exterior surface, wherein each protrusion has an aperture. The distal end of the catheter is inserted into the blood vessel and a suction is applied to the proximal end of the catheter to aspirate the thrombus from the blood vessel. The kit includes the catheter, a suction device and a mechanism for controlling the suction flow.