72results about How to "Avoid free flow" patented technology

An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.

An infusion pump includes a pump body for holding a roller clamp 7, and a roller movement mechanism 3 for moving a roller 72 of the roller clamp 7 and operating in coordination with manipulation of a door lock mechanism. When the door lock mechanism is in an unlocked state, an infusion tube T is blocked by the roller clamp 72. This configuration reliably prevents free flow even if a door is not closed completely or if the door is accidentally left unlocked. After the finish of infusion treatment, the infusion tube T is blocked by the roller clamp 7 at the moment when the door lock mechanism is unlocked before the opening of the door. This configuration avoids a trouble of removing the infusion tube T from the infusion pump while a user forgets to block the infusion tube by the roller clamp 7.

A hydration management system includes a console for mounting on an IV pole. A urine collection bag and a hydration fluid bag hang from the console. Urine in the urine collection bag is weighed. An infusion pump is configured to pump hydration fluid from the infusion bag. A controller is responsive to the weight of the urine collection bag and controls the infusion pump to hydrate the patient based on the patient's urine output. An infusion set includes an infusion bag connector, an IV needle connector, and tubing, placed in the infusion pump, extending between the infusion bag connector and the IV needle connector. A urine collection set typically includes the urine collection bag, a catheter connector, and tubing extending between the urine collection bag connector and the catheter connector.

An apparatus for pumping fluid through tubing comprising a stop platen is disclosed. The stop platen is operatively arranged to depress a wall of the tubing along a section of a longitudinal axis of the tubing. The stop platen is narrower than the tubing along a transverse axis of the tubing. The invention further comprises a cabinet containing the stop platen, a door rotatably fixed to the cabinet, and locking means for preventing rotation of the door. The locking means are operatively arranged to be unlocked by a tubing occluder.

A product application device includes a receptacle having a variable inside volume configured to contain a product, an applicator element, and a dip tube configured to extend to the bottom of the receptacle. The device further includes a first portion and a second portion configured to cooperate together to define a substantially leak-proof enclosure for the applicator element. The dip tube is configured to enable the enclosure to be in flow communication with the product flowing from the receptacle.

A hydration management system includes a console for mounting on an IV pole. A urine collection bag and a hydration fluid bag hang from the console. Urine in the urine collection bag is weighed. An infusion pump is configured to pump hydration fluid from the infusion bag. A controller is responsive to the weight of the urine collection bag and controls the infusion pump to hydrate the patient based on the patient's urine output. An infusion set includes an infusion bag connector, an IV needle connector, and tubing, placed in the infusion pump, extending between the infusion bag connector and the IV needle connector. A urine collection set typically includes the urine collection bag, a catheter connector, and tubing extending between the urine collection bag connector and the catheter connector.

The present invention relates to an embryos collector system used for the collection and careful selection of embryos, which maintains the fluid control from the uterus discharge fluids inside the collector device and the control of displacement of the embryos and mucosal in the interior of the device. This system includes a conduit system free of internal collision points where the embryos can safely navigate to a section on the device, in which the direction, force, and speed of the turbulent currents are controlled; thus, the embryos are not subjected to any trauma, cannot be trapped by the mucosal; nor dragged by the filtration mesh.

A dispensing closure for viscous fluids contains a closure body, a closure lid and a living hinge structure hingeably connecting the closure lid to the closure body. The closure body includes an upper deck, a skirt configured and arranged to mount to a product container, and a flow conduit extending through the upper deck to provide a flow path from an interior of the closure to an exterior of the closure. The flow conduit includes an entrance orifice and an exit orifice, and an inner wall extending between the entrance orifice and the exit orifice. To provide the desired flow effect, the inner wall includes at least one flow inhibitor structure, such as helically threaded flights extending at least partially inwardly from the inner wall into the flow path to define an unobstructed central flow path and a partially obstructed peripheral flow path.

An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.

Systems and methods for presenting fraud detection information are presented. In one example, a computer system for managing and enabling communication of information potentially pertinent to identifying fraudulent activity receives requests via a producer interface, to store a plurality of data points potentially pertinent to identifying fraudulent activity from a plurality of source systems. A fraud exchange engine performs an analysis of the data points to produce a relational data point. And a consumer interface receives, from at least one target system, a request to retrieve at least one of a set of the plurality of data points and the at least one relational data point.

A radially sealing valve for preventing free flow from an IV set has an elastomeric cup portion that covers an outlet opening and is normally closed by its resiliency. The valve can be incorporated into a cassette for an IV pump that automatically opens the valve when the cassette is loaded. Axial force on the bottom of the cupped valve provides radial contraction or expansion of the sidewall of the valve to open a fluid path.

The present invention comprises an apparatus for pumping fluid through tubing. The apparatus includes a tubing base having a tubing support surface and a stop platen. The stop platen and the tubing support surface each comprise respective ridges aligned with a direction of fluid flow through the apparatus. The respective ridges are operatively arranged to engage a wall of tubing along a longitudinal axis of the tubing. In some aspects, the respective ridges are arcuate in a plane orthogonal to the direction of flow. In some aspects, the respective ridges are centered with respect to a transverse axis of the tubing and have a respective width less than an outside diameter of the tubing.

A system and method for submerged arc metal powder welds includes modular programmable control of: a) a weld torch, and the position of the welding wire(s) from the torch traveling within a weld cavity, b) the rate of metal powder and welding flux added to the weld cavity ahead of the weld torch, c) the matching ratio between of metal powder and welding wire within the weld cavity, and d) a square wave welding torch power supply. An embodiment includes a controlled column and boom manipulator with up to six axes of motion and controlled motorized slide assemblies for single or multi-pass welds. A method of use is also disclosed.

A dispensing closure for viscous fluids contains a closure body, a closure lid and a living hinge structure hingeably connecting the closure lid to the closure body. The closure body includes an upper deck, a skirt configured and arranged to mount to a product container, and a flow conduit extending through the upper deck to provide a flow path from an interior of the closure to an exterior of the closure. The flow conduit includes an entrance orifice and an exit orifice, and an inner wall extending between the entrance orifice and the exit orifice. To provide the desired flow effect, the inner wall includes at least one flow inhibitor structure, such as helically threaded flights extending at least partially inwardly from the inner wall into the flow path to define an unobstructed central flow path and a partially obstructed peripheral flow path.

A vacuum-sealable hatch that is vacuum sealed to a surface of a passthrough light sterilization device, and related methods of use, consists of a hatch body having at least a portion adapted to fit within an opening of the treatment chamber and a flexible piece attached to the hatch body. The flexible piece extends peripherally from the hatch body and includes a seating portion which is adapted to be vacuum sealed to a seating region of an interior surface of the treatment chamber. The hatch body and the flexible piece seal the treatment chamber from the outside environment, thereby preventing the free flow of microorganisms to and from the treatment chamber and the outside environment. In some variations, at least the seating portion of the flexible piece is transmissive to the light treatment such that surfaces underneath the seating region are treated by the light treatment.

The invention provides an airtight type livestock ultra-clean breeding cabin, and belongs to the breeding field. The airtight type livestock ultra-clean cultivating cabin comprises a cabin body, a dwelling bed, a water drinking device, a feeding device, a feces removal device and an air interchanger, the cabin body is airtight, a cavity is formed inside the cabin body, the dwelling bed, the water drinking device, the feeding device and the feces removal device are all arranged in the cavity, the dwelling bed is in a net shape or grid shape, the feces removal device is arranged below the dwelling bed, the water drinking device and the feeding device are arranged above the dwelling bed, and the air interchanger is communicated with the cavity. Livestock bred in the airtight type livestock ultra-clean breeding cabin is isolated from the external environment, disease causes can not easily enter the interior of the cabin body, the sickening probability of the livestock is greatly lowered, the use medicine amount is relatively reduced, and produced meta, produced eggs and produced milk are safe.

The invention relates to a dispensing device for dispensing active ingredient fluids to the flushing liquid in a toilet bowl. Said dispensing device comprises at least two holders (6, 7) for accommodating respective reservoirs (2, 3), every reservoir (2, 3) having its own outlet opening via which the respective active ingredient fluid (4, 5) can be dispensed to the flushing liquid or to the surroundings of the dispensing device and the reservoirs (2, 3) being protected from flushing liquid entering their interior. At least one outlet opening of the reservoirs (2, 3) is arranged on the bottom when in the working position and a partial amount of the active ingredient fluid is dispensed to the flushing liquid from at least one of the reservoirs (2, 3) during flushing. The interior of at least one of the reservoirs (2, 3) communicates with a distribution element (9, 10) via the outlet opening, an arrangement preventing the free flow of the active ingredient fluid (4, 5) being interposed. One reservoir (2, 3), one holder (6, 7) and one plate-shaped distributing element (9, 10) each form an independently operative, separate metering unit (A, B), the metering units (A, B) of the dispensing device being immobilized in relation to each other by at least one connecting element (11).

A cassette (1) that is insertable into an infusion pump for delivery of a fluid to a subject that has a housing with two ends for holding flexible tubing (75) through which the fluid is directed. The housing has an open area exposing the tubing, the tubing engages a pumping mechanism when inserted into an infusion pump. An anti-flow valve mechanism (100) associated with the tubing or the cassette and present either in, on or near the housing is made up of a piston (103 / 105) and spring (110), where the spring biases the piston against the tubing to prevent fluid flow.

An improved safety occluder and method of use provides an occluder for an infusion set having a first, occluding position, a second, non-occluding position which returns to the first, occluding position when the occluder's plunger is released, and a third, non-occluding position which retains the plunger in a configuration which allows fluid flow through the infusion set. The occluder may also include a locking mechanism to prevent accidental movement of the plunger out of the first, occluding position.

A radially sealing valve for preventing free flow from an IV set has an elastomeric cup portion that covers an outlet opening and is normally closed by its resiliency. The valve can be incorporated into a cassette for an IV pump that automatically opens the valve when the cassette is loaded. Axial force on the bottom of the cupped valve provides radial contraction or expansion of the sidewall of the valve to open a fluid path.

A method of and an apparatus for drying solid materials and material mixtures in a dryer, comprising a drying space, which is divided by wall elements into drying passages in such a way that each drying passage is limited into two wall elements. Material to be dried is supplied to the drying passages through the upper part thereof. Drying gas is supplied to the drying passages through a first wall element limiting them and moist drying gas is led out of the drying passage to a second wall element limiting them. The dried material is discharged from the drying passages through the lower part thereof. Adjacent wall elements are moved relative to each other in connection with the emptying of the drying passages.

A system for sealing a region of open hole gravel pack comprising a sealing patch and an installation tool is described. The sealing patch includes a tubular assembly including two expandable anchor / seals and two low melting temperature alloy elements positioned on outside surface of the tubular assembly above the anchor / seals. The system is deployed in desirable location in the well and the tool is operated to set anchor / seals in interference contact with sand-screen. Then the alloy elements are melted to seal the patch. The anchor / seals serve two purposes: they provide a hanging capacity to support the patch in the well and create a “bridge” preventing the molten alloy from freely flowing through the annulus between the tubular assembly and sand screen and focusing the molten alloy at the anchor / seals to flow in radial direction penetrating through the sand-screen and the surrounding proppant sand creating a complete seal.

The invention discloses thixotropic foam silicone rubber. The thixotropic foam silicone rubber is prepared by mixing a component A and a component B according to equivalent mass; the component A is prepared from 100 parts by weight of alpha, omega-hydroxy-terminated poly-dimethylsiloxane, 4 to 10 parts by weight of vinyl-terminated silicone oil, 10-40 parts by weight of containing hydrogen silicone oil, 0.4 to 1.0 part by weight of inhibitors, 15 to 40 parts by weight of thixotropic agents, 30 to 50 parts by weight of reinforcing filler and 0.5 to 1 part by weight of color matching agents; thecomponent B is prepared from 100 parts by weight of alpha, omega-hydroxy-terminated poly-dimethylsiloxane, 4 to 10 parts by weight of vinyl-terminated silicone oil, 5 to 10 parts of hydroxy-terminated silicone oil, 30 to 70 parts of reinforcing filler, 0.8 to 1.5 parts by weight of catalysts and 15 to 40 percent of thixotropic agents. At room temperature, the components A and B which are uniformly mixed are applied to a sealed part within 10 to 20 minutes, and are subjected to standing and foaming to obtain the silicone rubber. The thixotropic foam silicone rubber disclosed by the invention is low in cost and good in thixotropism; a preparation method of the thixotropic foam silicone rubber is simple in process, wide in application field and simple and convenient in construction.

A delivery tube is inhibited from unintended withdrawal from an infusion pump which has an internal occlusion clamp that clamps the delivery tube to prevent the free flow of fluid through the tube, by overlapping a blocking lip from a compression edge of the occlusion clamp with a restraint surface of an anvil against which the tubing is compressed and by overlapping a blocking projection from the restraint surface with the compression edge. Inhibition is also achieved by positioning an obstruction protrusion adjacent to the compression edge and the blocking lip to resist the application of exterior physical force to force the occlusion clamp from an occluding position to a non-occluding position.

The invention relates to an impeller for a pump unit, in particular for a waste water pump unit, having two cover plates (2, A) which are spaced apart from one another in the axial direction (X) and are connected to one another by means of at least one connecting element (8), and having at least one blade (12, 14) which is arranged between the two cover plates (2, 4) and extends from an inner diameter of the impeller to an outer diameter of the impeller, wherein the blade (12, 14) has a continuous slot (16) which extends from that edge (22, 24) of the blade (12, 14) which is situated at the inner diameter to that edge (26, 28) of the blade (12, 14) which is situated at the outer diameter, and to a pump unit having an impeller of said type.

An embodiment is directed to pressure plate for attachment to an infusion pump, where the pressure plate includes a tubing support surface at least partially surrounded by a raised perimeter support. The pressure plate includes a plurality of guide structures extending from the raised perimeter support that define a passageway for an infusion pump tube. Additionally an attachable flow stop assembly is included that includes an attachable occlusion arch and an attachable flow stop arm. The attachable occlusion arch includes a plurality of tab structures that couple to the raised perimeter support. The occlusion arch further includes an aperture configured to surround an infusion pump tube threaded therethrough. The attachable flow stop arm is operatively coupled to the raised perimeter support adjacent the attachable occlusion arch in a spring-biased fashion such that the aperture in the occlusion arch may be selectively occluded by the flow stop arm.

The invention discloses a method for packing an alkali metal simple substance, which is applied to the technical field of alkali metal atom steam reaction chambers. The method is characterized by comprising the following steps of: making a paraffin seal molding die; coating a paraffin layer on a bottom die; processing a micro blind hole array on the paraffin layer by using a male die or laser light; injecting a liquid-state alkali metal simple substance into the micro blind hole array on the paraffin layer by using a micro sample injection device; coating a layer of paraffin on a step layer of a top die; aligning the top die to the bottom die along a step groove and laminating; uniformly heating the laminated top die and bottom die till the paraffin layer at the joint of the top die and the bottom die is in molten or critical molten state; removing silicon from the buckled top die and bottom die by corroding with a potassium hydroxide solution to obtain a paraffin bag array; and separating to obtain a paraffin bag coated with micro alkali metal simple substances. Alkali metal is rubidium (Rb) or caesium (Cs). The invention has the advantages of capabilities of preventing the alkali metal simple substance from being deteriorated and reducing impurities in an atom steam chamber, convenience for batch manufacturing, simple process, easiness for integration with a next stage system, and the like.

Disclosed herein is a method of producing a decellularized bioscaffold from an organ or a vessel covered by a lining tissue. The method comprises subjecting the organ or the vessel to a digestion buffer thereby removing the lining tissue from the tissue or organ; and then treating the tissue or organ with a decellularization buffer. The present decellularized bioscaffold is useful in promoting tissue regeneration and / or remodeling.

The invention provides a node and electronic equipment. The node comprises a structure module, a circuit board, a liquid cooling pipe and a liquid leakage monitoring device. Wherein the circuit board is fixedly installed on the structure module, and electronic devices including chips and the like are arranged on the circuit board. The liquid cooling pipe is arranged on the circuit board and used for cooling electronic devices on the circuit board. The liquid leakage monitoring device comprises a drainage pipe arranged on the outer side of the liquid cooling pipe in a sleeving mode, a certain gap is formed between the drainage pipe and the liquid cooling pipe, and when the liquid cooling pipe leaks, leaked cooling liquid can flow in the drainage pipe and cannot flow at will, so that the problems of short circuit and the like of a circuit board are solved. The drainage pipe is connected with a liquid receiving disc, leaked cooling liquid flows into the liquid receiving disc from the drainage pipe, a first liquid leakage sensor is arranged in the liquid receiving disc, and when the first liquid leakage sensor monitors that the leaked cooling liquid exists in the liquid receiving disc, an alarm signal is sent out, so that a system or an operator can carry out data storage or power failure and other processing conveniently; and loss caused by leakage of the liquid cooling pipe is reduced.

The invention relates to a method as well as a microdosing system for dosing an amount of fluid to be dispensed, wherein the microdosing system includes a micropump including an inlet and an outlet and configured to suck the fluid to be dispensed through the inlet and to dispense at least part of the fluid from the outlet. Further, the inventive microdosing system includes a first flow sensor arranged on the inlet side or the outlet side having an opening and a flow rate meter, wherein the flow rate meter is configured to determine the flow rate of the fluid passing through this opening. Additionally, the inventive microdosing system includes calibrators and / or fault detectors of the first flow sensor.