Abstract:
A dispenser for applying at least two compositions, the dispenser including at least two reservoirs for storing the at least two compositions, at least two pumps for pumping the at least two compositions, a premix chamber containing a mixing element for mixing the two compositions, at least two channels for delivering the compositions from the reservoirs to the premix chamber, an exit orifice, optionally a swirl chamber, and an actuator.
Abstract:
A system and method determine color of skin of a subject and produce a customized cosmetic based at least in part on the determined color of skin. A region of skin is covered with a chamber having an open area facing the skin. The skin is illuminated with light caused to enter the chamber. The light is caused to be dispersed within the chamber. A camera is used to record an image of a portion of the dispersed light in the chamber and the recorded image is processed to characterize the color of the skin. The recorded image includes a plurality of colors which are mapped to the closest color recipe. The color recipe is used to calculate actuator displacements for a portioning machine that includes a cartridge having cosmetic additives that produce the customized cosmetic.
Abstract:
A mixing tip for a dispenser according to the present invention includes a lower casing connected to the dispenser and to which a silicone base material and a curing agent are supplied, an upper casing coupled to the lower casing and including a discharge pipe through which an impression material having a desired mixing ratio of the silicone base material and the curing agent is discharged to the outside, and a mixer disposed between the lower casing and the upper casing to mix the silicone base material with the curing agent, wherein the mixer includes a mixing plate disposed between the lower casing and the upper casing and having a predetermined surface area, a shaft-fitting pipe extending downward from the mixing plate and fitted over a drive shaft of the dispenser to be rotated therewith, and a path control rib extending downward from an outer peripheral edge of the mixing plate to control flow paths of the silicone base material and the curing agent, wherein the lower casing includes a body including an upper casing-fitting ring formed at an outer peripheral edge thereof and coupled to the upper casing and an inner fitting ring spaced apart from the upper casing-fitting ring by a predetermined interval and extending from the body, a base material supply pipe extending downward from a bottom surface of the body to receive the silicone base material and to discharge the silicone base material into a mixing space defined between the path control rib and the mixing plate, and a curing agent supply pipe spaced from the base material supply pipe to receive the curing agent and to discharge the curing agent into a space defined between the path control rib and the inner fitting ring.
Abstract:
A device for storing and mixing bone cement components. The device includes a housing, a safety device, and a vacuum indicator. The housing defines a mixing chamber configured to store a first bone cement component therein. In a first safety position, the safety device prevents contact between the first bone cement component and a second bone cement component in the mixing chamber. In a second safety position, the safety device permits contact between the first and second bone cement components in the mixing chamber. The vacuum indicator restricts movement of the safety device from the first safety position to the second safety position when in a first vacuum indicator position. The vacuum indicator permits movement of the safety device from the first safety position to the second safety position when in a second vacuum indicator position.
Abstract:
A mixing apparatus includes: a mixing container with a discharge port for discharging mixed liquid; a filter paper covering the discharge port to temporarily retain the liquid; a receiving unit with a waste liquid collecting portion for receiving a first liquid discharged from the discharge port through the filter paper, and a measuring portion for receiving a second liquid subjected to treatment different from treatment for the first liquid; and an operation portion for enabling selection between a first receiving state in which the waste liquid collecting portion receives the first liquid and a second receiving state in which the measuring portion receives the second liquid, and also for controlling the movement of the first liquid or the second liquid.
Abstract:
A device stores and mixes a liquid and a solid component, in particular, the device mixes and stores a monomer liquid and a powder for producing bone cement. The device contains two chambers of which the first chamber contains the solid component and is separated from a second chamber that contains the liquid component by means of a separation that can be opened. A mixing facility that can be driven by means of a pressure difference is arranged in the first chamber. In the present storage and mixing system, a vacuum that is available in the operating theatre is used to mix a monomer liquid and a bone cement powder in a vacuum and to operate a mixing facility simultaneously. Moreover, the vacuum can also be used to open a separation between monomer liquid and mixing space and to transfer the monomer liquid into the mixing space.
Abstract:
A mixing apparatus for mixing at least two components comprises a mixing chamber having a first component and at least one component chamber having a further component. The component chamber is connected to the mixing chamber by a feed line. A negative pressure device generates a negative pressure in the mixing chamber in the starting position. By activating the negative pressure device, the pressure is equalized, whereby the further component is transferred into the mixing chamber. A display apparatus is provided at the component chamber to display a pressure change in the component chamber. The display apparatus is preferably formed by elastic bellows provided at one end of the component chamber, which is disposed opposite of the end of the component chamber following the feed line.
Abstract:
A device for use in handling a sample, the device including a number of deformable cavities provided on a surface of a substrate, at least one of the cavities being a sample cavity for receiving a sample and a number of fluid channels connecting the cavities such that in use, selective deformation of the cavities causes the sample to be selectively combined with one or more substances.
Abstract:
Methods and apparatus are set forth for preparing and delivering bone cement from a powdered polymer component and a liquid monomer component by simultaneously injecting the powdered and liquid components, stored in separate component chambers, into an evacuated mixing chamber under the effect of the vacuum; by uniformly mixing the components in the mixing chamber (to thoroughly wet the powder); and by delivering the cement formed by the polymerization process, as needed in an operative setting, utilizing a single ready to use device. The uniform mix is achieved by simultaneously subjecting the contents of the component chambers to the effects of the mixing chamber's vacuum via separate one way nozzles, interconnecting the component chambers to the mixing chamber, which cause the powder to be broadcast and liquid to be sprayed into the mixing chamber. The nozzles are designed and oriented in a predetermined manner (depending on the type and quantity of the constituent bone cement components being mixed), to cause the components to interact at a preselected distance within the mixing chamber, to assure uniform powder saturation and a thorough mix which yields a homogeneous reaction product.
Abstract:
Apparatus for storing and selectively mixing at least two distinct substances in a common package has a container (10) for creating a substance holding chamber (16) in which is disposed a barrier (18) arranged for separating the chamber into at least two compartments (20, 22) each holding a predetermined quantity of a substance different from a substance being held in the other compartment. Provision is made for exerting an external force on the barrier so as to open same and cause communication between the compartments. Subsequent mixing of the substances contained in the compartments is achieved either by continued movement of the barrier or by a separate mixing device.