Patent classifications
B01F2101/20
POWDER-LIQUID BONE CEMENT MIXER WITH COMPRESSED GAS CONNECTION
The invention relates to a device and method for producing a bone cement paste (54) from a monomer liquid (4) and a cement powder (5). The device includes a cartridge (1) with a cylindrical interior chamber for mixing the parent components, whereby the interior chamber of the cartridge (1) is closed on the front side up to a delivery opening for expelling the bone cement paste (54) from the interior chamber, a delivery plunger (7) which is arranged in the interior chamber of the cartridge (1) and which is supported in a linearly movable manner in the direction of the delivery opening, the cement powder (5), which is arranged in the interior chamber of the cartridge (1) between the delivery opening and the delivery plunger (7), a monomer receptacle (2) with an interior chamber in which a monomer liquid container (3) containing the monomer liquid (4) is contained, whereby in the monomer receptacle (2), a conveying plunger (6) is arranged movable in the longitudinal direction of the monomer receptacle (2), a compressed gas connection (8), which is directly connected or connected via a compressed gas line in a pressure-tight manner with the interior chamber of the monomer receptacle (2), whereby the conveying plunger (6) is arranged between the monomer liquid container (3) and the compressed gas connection (8) or the compressed gas line in the monomer receptacle (2), and a connection (14) which connects the interior chamber of the monomer receptacle (2) and the interior chamber of the cartridge (1) which is permeable for the monomer liquid (4) but impermeable for the cement powder (5), whereby the monomer liquid container (3) is arranged between the conveying plunger (6) and the connection (14).
Telescoping plunger assembly
A bone filler mixing and delivery device includes a mixing section adapted to mix components to form bone filler. A syringe barrel is coupled to the mixing section and has an opening through which the bone filler can be dispensed. A controllable portal can be manipulated to open a flow path between the mixing section and the syringe barrel. A plunger assembly is adapted to extend telescopically in an axial direction through the syringe barrel to dispense the bone filler through the opening.
METHODS AND SOFTWARE APPLICATIONS FOR TINTING USING LOW RESOLUTION SPECTROPHOTOMETER
Methods and software applications for transmitting high-resolution spectral curve data to a tinter for generating a tint formula usable to custom-tint a base paint or coating to match the color of a sensed surface. The high-resolution spectral curve data is derived from low-resolution or wideband spectral data obtained via a low resolution or wideband spectrophotometer. Additional user information, order information, or location information may be transmitted to the tinter.
Portable Centrifuge Device and Method of Use
A portable centrifuge having a housing containing a rotational mechanism and a centrifugal container having a longitudinal axis. The rotational mechanism has a circuit including an electrical motor, a switch, and an internal electrical power source. The centrifugal container is operably connected to the rotational mechanism through the housing, and is rotatable about the longitudinal axis. The centrifuge is portable and is for single use.
Manifold for filling plural cannulae, the manifold including rotating fittings that close when a cannula is removed from the fitting and that open when a cannula is attached to the fitting
A manifold for loading plural cannulae with a substance is described. The manifold includes a housing with a plurality of channels that route the flow of the mixed substance from a single central channel to multiple sub-channels for the simultaneous filling of attached cannulae. Each sub-channel extends to a fitting to which a cannula may be attached. The fittings are rotatably mounted to the housing. A lock assembly holds the cannulae to the individual fittings are so that when a cannula is removed from a fitting, the fitting rotates so as to close the fluid path from the sub-channel. In order to attach a second cannula to the same fitting the lock system requires the fitting to be rotates into a position in which the fluid communications path from the associated sub-channel is reopened.
Storage and mixing system with compressible internal cartridge for pasty starting components
Storage and mixing systems and methods for pasty multicomponent polymethylmethacrylate bone cements, the systems and methods comprise a first tubular cartridge with a first cylindrical internal space containing a first starting component, a first dispensing plunger, a second tubular cartridge that is arranged within the first tubular cartridge. The external wall of the second cartridge touches against the internal wall of the first cartridge and is attached to the internal wall of the first cartridge, whereby the second cartridge contains a second starting component and has a second dispensing plunger arranged in it, whereby a pressing device with a clamping edge for compressing the second cartridge that can be propelled axially in the internal space of the first cartridge is arranged, as seen from the cartridge head, behind the first dispensing plunger and the second dispensing plunger. The pressing device can be propelled appropriately in the direction of the cartridge head such that the second cartridge is being progressively compressed axially during the motion of the pressing device such that, in the process, the first dispensing plunger and the second dispensing plunger are propelled in the direction of the cartridge head.
BONE CEMENT APPLICATOR WITH LINE ELEMENT AND CLOSURE RECEPTACLE
One aspect relates to a device for producing a bone cement paste from a monomer liquid and a cement powder and for delivering the bone cement paste, the device having a cartridge with a cylindrical interior, the interior of the cartridge being closed at the front side apart from a delivery opening for discharging the bone cement paste from the interior. A delivery plunger is arranged in the interior of the cartridge and mounted so as to be pushable in the direction of the delivery opening. The cement powder is arranged in the interior of the cartridge between the delivery opening and the delivery plunger. A closure closes the delivery opening and is mounted so as to be movable relative to the delivery opening. A line element is arranged at the front side of the delivery opening and includes a closure receptacle for receiving at least part of the closure. The closure is pushable into the closure receptacle by pressure on the bone cement paste such that the delivery opening is opened, when the closure has been pushed into the closure receptacle, the line element provides a free line cross-section through which the bone cement paste is pushable out through the delivery opening and out of the device.
Mixing system and valve assembly
A mixing system is disclosed in which the system comprises a source of bone-graft or bone-graft-substitute material, a liquid source, and a vacuum source, at least one of the source of bone-graft or bone-graft-substitute material and the liquid source being in communication with the vacuum source. A valve assembly also forms part of the system, the valve assembly having a valve movable between a first position in which a first fluid passageway is created between the source of bone-graft or bone-graft-substitute material and the vacuum, and a second position in which a second fluid passageway is created between the source of bone-graft or bone-graft-substitute material and the liquid source, wherein, in the second position, the valve seals off the first fluid passageway, the vacuum source being adapted to generate a negative-pressure environment, relative to atmospheric pressure, within the valve assembly while the valve is in the first position. Methods of utilizing the aforementioned system are also disclosed.
Device for mixing and storing polymethyl methacrylate bone cement with pressure pump and ampoule breaker
A device mixes bone cement and stores parent components of the bone cement. The device has a cartridge comprising an interior, that is closed on one side by a movable delivery plunger, a receptacle comprising side walls for receiving a monomer liquid container that are closed at least in some regions. The receptacle has at least one deformable closed side wall, a screen and/or a filter arranged below the receptacle so that the contents of the opened monomer liquid container flow through the screen and/or the filter. The device further has a connecting line through which the monomer liquid is to be routed into the interior of the cartridge, a hollow cylinder which is connected to the connecting line and which is connected to the receptacle by way of a fluid connection so that the hollow cylinder is arranged in a fluid line between the receptacle and the interior of the cartridge. A pump plunger is arranged in the hollow cylinder, which is axially displaceable in the hollow cylinder, and an opening device, which is movably mounted against the deformable side wall of the receptacle. The opening device extends into the hollow cylinder, wherein, by pressing the pump plunger into the hollow cylinder, the opening device is to be pressed against the deformable side wall of the receptacle so that the deformable side wall deforms such that a monomer liquid container located in the receptacle is to be opened by the pressure of the opening device.
BONE CEMENT APPLICATOR WITH HOLLOW CYLINDER ON DELIVERY PLUNGER
One aspect relates to a device for producing a bone cement paste from a monomer liquid and a cement powder as parent components of the bone cement paste and for delivering the mixed bone cement paste. The device has a cartridge with a cylindrical interior. The interior of the cartridge is closed at a front side apart from a delivery opening for discharging the bone cement paste. In the interior of the cartridge a delivery plunger is arranged which is pushable in the direction of the delivery opening. The cement powder is arranged in the interior of the cartridge between the delivery opening and the delivery plunger. A hollow cylinder is arranged at a front side of the delivery plunger facing the delivery opening. The hollow cylinder is open at its front face facing the delivery opening and extends from the front side of the delivery plunger at least 3 mm into the interior of the cartridge.