Sample extracting, diluting and discharging device
AssigneeBüHlmann Laboratories AG
InventorsErik Pavels Petersen, Arne Roseth, Thomas Jermann, Jakob Weber
Life of this patent
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Abstract
A tube for extracting, diluting and discharging a sample: able to control the amount of discharged diluted solution in the tube, after the sample has been diluted; that improves the hygienic conditions of discharging the sample; that enables introduction of a predetermined amount of a sample in any liquid or solid state; and that is able to transfer a specific amount of a diluted sample into another tube for further processing without any hygienic problems and with no risk of accidents.
Claims15
A tube for mixing, diluting, preserving and discharging a sample, comprising:
- a hollow first container for receiving and/or storing a solution, the first container having first and second ends, closed by an end-wall, respectively, wherein the first end has a first through-hole suitable for inserting a sample pin having a shape matching to the through-hole, the second end has a discharge port suitable for discharging a diluted sample, and a first fitting element;
- and
- a discharge device for controlling discharge of the diluted sample via the discharge port, the device having a discharge-opening for discharging the diluted sample and a second fitting element, that is engagedly fitted with the first fitting element to mount the discharge device on the first container, wherein at least a part of the discharge device is a moveable portion that is moveable between at least a first position and a second position, wherein the first position is a closed position, in which the sample cannot be discharged, and the second position is a discharge position, in which the sample can be discharged, and the moveable portion comprises a chamber having a predetermined volume that is in the first position connected to the discharge port of the first container and in the second position connected to the discharge-opening of the discharge device.
A tube for mixing, diluting, preserving and discharging a sample, in combination with a sample pin, the tube comprises a hollow first container for receiving and/or storing a solution, wherein the hollow first container having first and second ends, wherein the first end has a first through-hole suitable for inserting a sample pin having a shape matching to the through-hole, the second end has a discharge port suitable for discharging a diluted sample, wherein the hollow first container comprises a first locking device for locking a sample pin in a first position and a second locking device for locking the sample pin in a second position, and further comprising a sample pin comprising an elongated pin, a handle located at a proximal end of the elongated pin, and at least one recess with a predetermined volume formed in a distal portion of the elongated pin, wherein the handle comprises at least one locking portion corresponding to the first and second locking devices, wherein the sample pin comprises pressing portions that serve to deform the handle to unlock the sample pin from the first locking device and wherein the second locking device prevents retraction of the sample pin.
A tube for mixing, diluting, preserving and discharging a sample, comprising a hollow first container for receiving and/or storing a solution, the first container having first and second ends, wherein the first end has a first through-hole suitable for inserting a sample pin having a shape matching to the through-hole, the second end has a discharge port suitable for discharging a diluted sample, wherein the hollow first container has a guide disposed on the first end of the first hollow container which interacts with the sample pin to guide the sample pin in a predetermined position, further comprising a sample pin, wherein the hollow first container further comprises first locking means for locking a sample pin in a first position and second locking means for locking the sample pin in a second position.
Dependencies are inferred from the claim text.