A pipette for use with a pipette, tip or syringe, including a piston positioned within a cylinder comprises a pipette housing extending between an upper end and a lower end. Two parallel rods are positioned in the pipette housing, wherein one of the two parallel rods is coupled to a lifting rod. An operating element is configured to protrude outwardly from the pipette housing and be displaced relative to the pipette housing. A gear mechanism is arranged in the pipette housing and comprises a drive comprising a moveable input member and configured to be driven by the operating element, and an output comprising at least one moveable output member and configured to drive the two parallel rods. Successive displacements of the input member by the operating element are configured to alternately displace one of the two parallel rods and then another of the two parallel rods by the output member.

In various implementations, a dropper for a bottle may include a bulb with a flange and an extended leg. The dropper may be used as a cap, in some implementations, with or without a skirt. The dropper may inhibit leaks from a bottle when the dropper is used as a cap for the bottle.

A protector assembly for handling, storing and transporting donor tissue in a transfer pipette includes a distal cap and a proximal plug that are respectively engageable with opposite ends of the pipette. Structurally, the pipette includes a distally tapered fluid chamber which is in fluid communication with an extension tube. The distal cap is dimensioned for friction engagement with the fluid chamber of the pipette and it is formed with a plurality of vents to establish fluid communication through the vents with the fluid chamber. On the other hand, the proximal plug is dimensioned for a friction engagement with the extension tube to prevent leakage of solution from the fluid chamber of the pipette when the proximal plug is engaged with the pipette. In combination, an engagement of the protector assembly with a pipette holding a donor tissue will protect and preserve the donor tissue during handling and transport.

A cosmetic container with an adjustable discharge quantity includes a container body, an inner cover, an outer cover, a button, a piston, and an elastic member. The upper part of the container body is provided with an opening. The inner wall of the inner cover is threadedly connected to the opening of the container body, and the inner cover extends upward to form an inner cylinder. A plurality of stepped grooves with different depths are arranged in parallel in a movement area of the outer wall of the inner cylinder. The lower end of the inner cover is hermetically connected to a dropper. The outer cover is fixedly connected to the inner cover. The button is inserted between the inner cover and the outer cover. The piston is sleeved on a piston connecting rod of the button and moves up and down with the button.

A linear actuator (10) for use in a modular assembly of such actuators comprises an actuator body (11), a shaft (12) guided by the body to be displaceable relative thereto in the sense of tlte longitudinal axis (13) of the shaft and a drive motor enclosed in the body and operable to axially displace the shaft relative to the body in two mutually opposite directions. The body has two mutually opposite sides (15a, 15b) respectively lying in two substantial parallel spaced-apart planes, which each represent a reference plane for positioning the body side-by-side with the body of another such actuator, and a further side (17b) connecting the two mutually opposite sides and stepped to form a projection (18) receiving the shaft (12) with the axis (13) parallel to the two planes and a rebate (19) beside the projection to permit the body to interlock with the body of another such actuator at that further side. The projection (18) and rebate (19) are of substantially the same width in the sense of the spacing of the two planes and the shaft (12) is disposed substantially centrally of the projection (18) so that when the body (11) is interlocked with that of another such actuator the pitch of the shaft axes (13) is equal to that width.

A dropper package for dispensing and applying a fluid product, comprising a container body for storing the fluid product and a dropper assembly coupled to one end of the container body. The dropper assembly comprises a deformable bulb, a tube with its proximal end connected to the deformable bulb, and an applicator tip connected to a distal end of the tube. The applicator tip comprises two main application faces that are opposite to each other and a central through cavity that opens to the outside from both the main application faces. The applicator tip includes a dispensing channel that is in fluid communication with a channel of the tube and terminates in a dispensing orifice that opens into the central through cavity. The dropper package is adapted to apply and dispense the fluid product in a very controlled manner as well as massage the user's keratinous surface.

Disclosed is a dropper type cosmetic container. The dropper type cosmetic container includes a container body for containing a cosmetic material therein; a fixing member fixedly coupled to the container body and formed with a cylinder; an elevating member coupled to the fixing member to move up or down and formed with a synthetic resin elastic body; a dropper tube connected to the fixing member to suck and discharge the cosmetic material contained in the container body; a rotating member rotatably coupled to the fixing member; and a push button moving up or down together with the elevating member and having one side coupled to a piston, wherein a movement limiting protrusion is formed on one side of the elevating member, and a movement limiting hole is formed in one side of the push button, so that the movement limiting protrusion is coupled to the movement limiting hole, thereby limiting a movement section of the push button and a compression range of the elastic body.

An adjustable volume sampling system is disclosed for aseptically retrieving a sample volume of a fluid from an origination container. The system includes a sampling container. A cap is removably attached to the sampling container so as to close off the open top. The cap includes two ports. A first tube is attached to one of the ports. An elongated diptube extends through port into the sampling container and an upper end of the diptube is located inside a portion of the first tube. The diptube can be raised and lowered relative to the sampling container by pinching an stretching the first tube. Syringes are provided for expelling excess material from the sampling container.

A system and method for handling a sample comprising particles (CE) bound to ferromagnetic particles (FP); a magnetic field is created in a container (3) inside which the sample (TS) is arranged so that the particles (CE) are attracted against a side wall (4) of the container (3); part of the sample (TS) is sucked through a cannula (8), kept in position by an alignment device (10) so as not to be in contact with the side wall (4) of the container (3), without withdrawing the particles (CE) that remain in contact with the side wall (4).

In various implementations, a dropper for a bottle may include a bulb with a flange and an extended leg. The dropper may be used as a cap, in some implementations, with or without a skirt. The dropper may inhibit leaks from a bottle when the dropper is used as a cap for the bottle.