79results about How to "Eliminate dead space" patented technology

A closed system, spikeless, positive-flow valve device includes a body defining an internal cavity. At the proximal end of the body is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The valve includes a plastic, resilient silicon seal which fills the upper cavity and opening with an oval seal cap having a slit. The opening presses the oval seal cap to keep the slit closed in the decompressed state. The slit opens as the nose of the medical implement compresses the seal into the cavity and the seal cap is free from the opening. The housing also includes a fluid space which facilitates fluid flow between the medical implement and a catheter tip. The fluid space within the valve automatically and reversibly increases upon insertion of the medical implement into the cavity and decreases upon withdrawal of the medical implement, such that a positive flow from the valve toward the catheter tip is effected upon withdrawal of the medical implement, thereby preventing a flow of blood from a patient into the catheter when the medical implement is removed from the valve.

A closed blood sampling system within a pressure monitoring line having a control valve that enables a clearance reservoir to be isolated from the pressure column when no samples are being taken. The valve is a stopcock-like device that includes a rotating valve member and attached control handle with clear visible and tactile indicators for the mode of operation. The rotating valve member has a number of internal and circumferential channels for connecting or disconnecting select ports in the core of the valve. By isolating the clearance reservoir, the quality of the pressure signal is improved such that the sampling line can be lengthened for greater convenience in the intensive care or operating room. The valve may also incorporate a blunt cannula sampling site therewithin.

The invention discloses integrated water purifying and processing equipment. The equipment comprises an external barrel and an internal barrel, wherein a convex head is arranged at the top of the external barrel; a water outlet is formed in the center of the convex head; a conical bottom plate is arranged at the bottom of the external barrel; a mixer motor and a speed reducer are arranged in the center of the bottom of the conical bottom plate; the speed reducer is provided with a stirring shaft; the side wall of the conical bottom plate is provided with a dredge pipe; an escape pipe is arranged at the bottom of the conical bottom plate; the inner side of the external barrel is divided into a clean water zone, an inclined tube settling zone, a mud and water separating zone, a secondary cluster flocculation zone, a primary flocculation reaction zone and a mud collection zone in turn from top down; a sludge concentrating zone is arranged between the internal barrel and the external barrel; the equipment is provided with a coagulant quick coagulation device and a sludge hydraulic automatic backflow device to keep the concentration of the sludge in the reaction zone stable; the sludge concentrating zone is provided with a spiral bevel plate to efficiently concentrate the sludge; and the clean water zone is provided with a water collecting plate to realize pressure effluent. The equipment has a simple structure, compact layout and high space utilization rate, is convenient to operate, and is suitable for clarifying tap water in middle-sized and small cities and purifying industrial water by primarily removing turbidity.

Methods and systems for determining the concentration of one or more analytes from a sample such as blood or plasma are described. The systems described herein can be configured to withdraw a certain volume of sample from a source of bodily fluid, direct a first portion of the withdrawn sample to an analyte monitoring system and return a second portion of the sample to the patient. The analyte monitoring system can be connected to the source of bodily fluid via a connector that is configured to maintain uniform velocity across the connector and reduce the dead space volume.

A heat dissipation device assembly comprises a heat sink having a columniform conductive core and a plurality of fins arranged radially around the conductive core, a columnar fan cover housing the heat sink and defining a first open end and a second open end, and a fan located at the second open end of the fan cover. Pluralities of channels are formed between the radiation fins. A plurality of elongated slot surrounding the heat sink is defined in the fan cover and extends from the first open end of the fan cover to the second open end. The airflow provided by the fan travels through the channels and the slots to outside of the fan cover.

The invention relates to a multilayer building, whose upright surface is arranged with step solid garden, wherein each layer of four continuous floors is arranged one open unit garden with at least two-floor high; the bottom of higher unit garden is through to the lower unit garden at one same floor horizontally; the step solid garden at least comprises one layered garden. The invention can supply outdoor room, to share the scene and accelerate the communication between people.

An injection device includes a barrel, a plunger having a portion structured and arranged to move within the barrel, a needle support, and a locking arrangement. The locking arrangement may at least one of selectively lock a proximal end portion of the plunger to the needle support and automatically lock a proximal end portion of the plunger to an outer portion of the needle support. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

A plurality of chipper inserts that may be installed on a hammermill rotor in place of the hammer inserts to selectively convert the rotor to a chipper. The chipper inserts include drum surfaces that cooperatively define a chipper drum. The chipper inserts may include cutter inserts that have a cutter disposed in a cutter pocket. The chipper drum may be a generally continuous cylindrical interrupted essentially only by the cutter pockets. The cutters and cutter pockets may be positioned in essentially any desired pattern around the drum. The chipper inserts may include a left cutter insert, a center cutter insert, a right cutter insert and three different size spacer inserts. The different types of cutter inserts and spacer inserts may be installed about the rotor with at least one left cutter insert mounted on the left end of the chipper drum and at least one right cutter insert mounted on the right end of the chipper drum. The chipper inserts may be configured in quadrant sections, such that it takes four inserts to extend around the rotor.

A plurality of chipper inserts that may be installed on a hammermill rotor in place of the hammer inserts to selectively convert the rotor to a chipper. The chipper inserts include drum surfaces that cooperatively define a chipper drum. The chipper inserts may include cutter inserts that have a cutter disposed in a cutter pocket. The chipper drum may be a generally continuous cylindrical interrupted essentially only by the cutter pockets. The cutters and cutter pockets may be positioned in essentially any desired pattern around the drum. The chipper inserts may include a left cutter insert, a center cutter insert, a right cutter insert and three different size spacer inserts. The different types of cutter inserts and spacer inserts may be installed about the rotor with at least one left cutter insert mounted on the left end of the chipper drum and at least one right cutter insert mounted on the right end of the chipper drum. The chipper inserts may be configured in quadrant sections, such that it takes four inserts to extend around the rotor.

A food delivery apparatus that includes a container having a nozzle and a moveable bottom opposite the nozzle, a food product held within the container, and an applicator used to move the bottom toward the nozzle. A method of dispensing the food product from the container including positioning the nozzle to the mouth of a user and engaging the applicator to dispense the food product through the nozzle of the container. The method also including the step of placing a removable tip upon the nozzle to protect the nozzle from contaminates. A kit for delivering food product to the user including a container having a nozzle upon a first end and an opening at a second end, a food product to be placed into the container, and a bottom for fitting within the container.

An object of the present invention is to construct a culture device optimized for culturing animal cells. The present invention provides a device for culturing cells which comprises at least one water-containing polymer gel film for adhering animal cells onto at least one surface of the film, and has a structure capable of supplying different liquids to both sides of the film.

The invention relates to a three-dimensional vortex burner and belongs to the technical field of thermal power engineering. The three-dimensional vortex burner is primarily characterized by being provided with an air inlet and a coal gas inlet entering tangentially, a catenary convoluted rectifying room, a primary air nozzle and a secondary air nozzle which are arranged in layers and different indirection and a diversion trench reinforcing throat, so that air is supplied to form conical spiral vortexes to inject the coal gas to fit an extremely low coal gas pressure and staged burning and thick and light burning are achieved to reduce emission of nitric oxide. The three-dimensional vortex burner is full in burning and small in resistance loss, and is particularly suitable for various industrial kilns which are high in power, low in coal gas calorific value, low in coal gas pressure, great in pressure fluctuation and high in demand on emission of nitric oxide. Energy conservation and emission reduction are achieved.

A heat dissipation device assembly comprises a heat sink having a columniform conductive core and a plurality of fins arranged radially around the conductive core, a columnar fan cover housing the heat sink and defining a first open end and a second open end, and a fan located at the second open end of the fan cover. Pluralities of channels are formed between the radiation fins. A plurality of elongated slot surrounding the heat sink is defined in the fan cover and extends from the first open end of the fan cover to the second open end. The airflow provided by the fan travels through the channels and the slots to outside of the fan cover.

A method and apparatus to impart a coating layer on the surface of decorative mouldings that are widely used in the externally insulated finishing systems (EIFS) in the construction industry. The method is a sequence of mechanically advancing a core, constructed from pre-formed expanded polystyrene (EPS, in a straight horizontal plane through a coating chamber / hopper with templates conforming to the desired decorative profile. The apparatus is a rectangular box with a funneled opening at the top with adjustable internal plates to direct the material from the sides of the box toward the pre-formed core that is being coated. Two plates on the bottom of the box support the pre-formed core and are adjustable to leave an opening in the center so that excess material can fall through the bottom after coating the last core. The templates are designed to be interchangeable with other coating apparatus designed by the inventor to produce start strips, decorative mouldings, wall panel sections and columns commonly used in the construction industry.

An image and spectrum analyzer is composed of high efficient liquid phase chromatograph system and nuclear magnetic resonance system. It is featured as setting chromatographic column in central hole of measuring probe placed between two gradient coils set between two cylindrical magnetic poles if normal magnet is applied or setting chromatographic column in central hole of measuring probe placed in gradient coil set in cylindrical superconductive magnet if superconductive magnet is applied.

A closed blood sampling system within a pressure monitoring line having a control valve that enables a clearance reservoir to be isolated from the pressure column when no samples are being taken. The valve is a stopcock-like device that includes a rotating valve member and attached control handle with clear visible and tactile indicators for the mode of operation. The rotating valve member has a number of internal and circumferential channels for connecting or disconnecting select ports in the core of the valve. By isolating the clearance reservoir, the quality of the pressure signal is improved such that the sampling line can be lengthened for greater convenience in the intensive care or operating room. The valve may also incorporate a blunt cannula sampling site therewithin.

An electromagnet device has a spool having a guard portion at at least one end thereof, a coil wound around a body portion of the spool, and a coil terminal press-fitted in the guard portion. A lead wire of the coil is tied up to a tying-up portion of the coil terminal projected from the guard portion. The tying-up portion is folded toward the guard portion of the spool after the lead wire of the coil is tied up to the tying-up portion of the coil terminal extending in a direction receding from the spool.