Abstract:
The present invention relates to a method of monitoring a flow behaviour of mixed components, comprising: rotating a mixing impeller at a first speed N 1 in a mixing vessel accommodating the components to be mixed; determining a first quantity (formula I) at the first speed N 1 , wherein N 1 is the speed at which the mixing impeller rotates and P 1 is the power required to rotate the mixing impeller at the first speed N 1 ; decreasing the speed of the mixing impeller to a speed N 2 ; determining a second quantity (formula II) at the second speed N 2 , wherein N 2 is the speed at which the mixing impeller rotates and P 2 is the power required to rotate the mixing impeller at the second speed N 2 ; comparing the first quantity (formula I) and the second quantity (formula II) and detecting whether the difference between the first and second quantities is within a specified range to determine whether the flow of the components in the mixing vessel is a turbulent flow; determining the density ρ of the mixed components based on at least one speed N i for which the flow is determined to be turbulent by the formula (III) wherein ρ is the density, P i is the power required to turn the mixing impeller at the speed N i , N P,constant is the Power number for a used mixing system configuration, N i is the speed at which the mixing impeller rotates and D is the diameter of the mixing impeller; further decreasing the speed of the mixing impeller; determining the Power number N P,variable for at least one detected speed N j at which the flow is determined to be non-turbulent by the formula (IV) wherein P j is the power required to rotate the mixing impeller at the speed N j , ρ is the density previously determined based on N P,constant, N j is the speed at which the mixing impeller rotates, and D is the diameter of the mixing impeller; and determining the dynamic viscosity μ of the mixed components by the formula (V) wherein ρ is the calculated density, N j is the speed at which the mixing impeller rotates, D is the diameter of the mixing impeller, P j is the power required to rotate the mixing impeller at the speed N j and x T corresponds to a specified relationship between the Reynolds number for the used mixing system configuration and the determined Power number N P,variable . Further, the present invention relates to methods for detecting settled solids at a mixing impeller.
Abstract:
The present disclosure relates to a container (19) for the production of a foamed sclerosant composition, to kits and systems including such a container (19), to methods for preparing a foamed sclerosant composition using such containers, and to foamed sclerosant compositions obtainable by such methods. In an aspect, the container (19) comprises a sealed sterile container body having one or more sidewalls extending between a top and a bottom of the container body and defining a foaming space (21). The container (19) further comprises a mixing element disposed in the container body. The container (19) contains a previously introduced gas and liquid sclerosant composition. The mixing element is configured to be operatively coupled with a rotatable actuator without the actuator reaching the foaming space (21). A medical professional may select the appropriate quantity and concentration for every treatment.
Abstract:
본 발명은 혈소판 검사용 칩에 관한 것으로, 혈액 샘플이 각각 저장되는 복수의 샘플 챔버와, 상기 샘플 챔버 내부에 각각 설치되어 혈액 샘플에 전단력을 인가하는 교반기와, 복수의 상기 샘플 챔버 각각에 대응하도록 마련되는 복수의 폐샘플 챔버와, 상호 대응하는 상기 샘플 챔버와 상기 폐샘플 챔버를 각각 독립적으로 연결하여 상기 샘플 챔버 내의 혈액 샘플이 해당 폐샘플 챔버 측으로 유동하는 경로를 형성하는 미세 채널과, 상기 복수의 샘플 챔버 중 적어도 하나에 수용되고, 외부 표면에 혈소판을 활성화시키는 시약이 코팅된 마이크로 비드를 포함하며; 상기 마이크로 비드는 혈액 샘플이 상기 샘플 챔버로부터 상기 미세 채널을 따라 이동할 때 함께 이동하는 것을 특징으로 한다. 이에 따라, 검사 대상자의 혈액 샘플의 점도(Viscosity) 및 헤마토크릿의 수치나 vWF의 기능과 수치와 무관하게 혈액 샘플 내의 혈소판의 특성 검사가 가능하게 되며, 소량의 마이크로비드(헤마토크릿으로 1% 미만) 만으로도 혈소판의 응집과 부착을 매우 효과적으로 유도할 수 있으며, 혈액의 이동거리 및 시간을 혁신적으로 단축시켜 검출에 소요되는 시간을 현저히 감소시킬 수 있다.
Abstract:
A mixing device is disclosed that includes a base, a magnet post configured for insertion into a hollow portion of a reagent container, a stationary magnet mounted on the magnet post, and a mixing ball including a ferromagnetic material provided in the reagent container, wherein the reagent container may be moved back and forth on the magnet post. Another mixing device is disclosed that includes a housing, a drive mechanism, a drive magnet mechanically coupled to the drive mechanism, a coupling magnet magnetically coupled to the drive magnet, a mixing ball including a ferromagnetic material provided in a reagent container, and a controller, wherein the controller is configured to control the drive mechanism to cause the drive magnet to move, and wherein the motion of the drive magnet induces a first corresponding motion in the coupling magnet, and wherein the first corresponding motion of the coupling magnet induces a second corresponding motion in the mixing ball,
Abstract:
A mixing apparatus (130) for a syringe (110), the mixing apparatus comprising a dock (134) configured to receive the syringe and having an agitation component actuator (132) integral to the dock configured for magnetically coupling to an agitation component (136) of a magnetic material located within a chamber of said syringe, and configured for manipulation of said agitation component within said chamber when coupled; wherein the actuator is in the form of a drum having a series of magnets attached thereto offset in relation to one another so as to manipulate said actuation component in a reciprocating motion upon rotation of the drum.
Abstract:
Die vorliegende Erfindung betrifft grundsätzlich das technische Gebiet der Verölung, insbesondere von kohlenwasserstoffhaltigen Stoffen und / oder Kunststoffen. Die Erfindung stellt Verfahren und Vorrichtungen bereit, in denen kohlenwasserstoffhaltige Eingangsstoffe während der Verölung mit dem Wärmeträger mittels einer zentrierenden Strömung durchmischt werden. Insbesondere Verfahren und Vorrichtungen bei denen Flüssigmetall als Wärmeträger für die Verölung von kohlenwasserstoffhaltigen Eingangsstoffen eingesetzt wird.
Abstract:
A method and apparatus for the mixing of a solution and reagents (24) for PCR reactions having a closed cartridge reaction well (22), a magnetically responsive bead (10) within the well having an optically inert coating (14) and a secondary chemically inert coating (12). A heat source (1 10) then heats the contents to a target temperature while oscillating magnetic fields move the bead within the well in order to mix the contents and make the contents of the reaction well homogeneous.
Abstract:
The invention is a package (1) for stereolithography comprising a container (2) filled with stereolithography resin (3), provided with an access opening (4), and a mixer element (5) arranged in a removable manner in the container (2) and provided with at least one magnet (6).
Abstract:
Die Erfindung betrifft ein Testset (1) für eine photometrische Messeinrichtung, mit einem Mischbehälter (2) der eine Füllöffnung (3) aufweist, sowie mit einem dichtend in die Füllöffnung (3) des Mischbehälters (2) einsetzbaren Dosierbehälter (8), der in einem verschlossenen Hohlraum (9) ein flüssiges Reagenzmittel (13) enthält, wobei der Hohlraum (9) an einem ersten Ende des Dosierbehälters (8) einen in den Hohlraum (9) axial verschiebbaren Verschlusskolben (11) aufweist, der einen vorgebbaren Fülldruck im Reagenzmittel (13) erzeugt und der Dosierbehälter (8) an seinem zweiten, in den Mischbehälter (2) einsetzbaren Ende eine Verschlussmembran (10) aufweist. Erfindungsgemäß ist die Verschlussmembran (10) mit einer Sollbruchstelle (20) ausgestattet, die bei einer definierten Überschreitung des Fülldrucks – ausgelöst durch eine axiale Verschiebung des Verschlusskolbens (11) – aufbricht, wobei die Sollbruchstelle (20) der Verschlussmembran (10) als eine sich linear erstreckende Materialverjüngung der Verschlussmembran (10) ausgeführt ist, die außermittig, im Bereich einer Öffnung (24) im Boden (23) des im Wesentlichen zylindrischen Dosierbehälters (8) angeordnet ist.