48results about How to "Facilitates gas exchange" patented technology

An apparatus (1) for non-invasive mechanical ventilation comprises a fan (2) of Bi-level type, or BiPAP, for generating an air flow according to a succession of inspiration steps, or IPAP, and exhalation steps, or EPAP. The flow is conveyed in the aerial ducts of a patient (25) by means of a flexible tube (3) connected to a nasal mask (4). A flexible air reservoir (5) is provided pneumatically connected to the duct (3) and the nasal mask (4) in order to subtract from the inspiration flow a certain air amount before that it reaches the patient (25) at the beginning of an IPAP step. During the exhalation EPAP step, since the air flow pressure decreases automatically, there is the emptying at least partial of the flexible air reservoir (5), whereas the air exhaled by the patient exits through an opening (14) made on the nasal mask (4). This way an air exchange occurs also in the most peripheral patient's aerial ducts and the amount of gaseous exchanges is increased, reducing at the same time the duration of the treatment.

The present disclosure relates generally to multicomponent optical devices having a space within the device. In various embodiments, an optical device comprises a first posterior component having an anterior surface, a posterior support component, and an anterior component having a posterior surface. An optical device can also comprise an anterior skirt. The first posterior component and the anterior skirt can comprise gas-permeable optical materials. An optical device also comprises a primary space between the posterior surface and the anterior surface, with the primary space configured to permit diffusion of a gas from a perimeter of the primary space through the space and across the anterior surface of the first posterior component. A method of forming a multicomponent optical device having a space is also provided. Multicomponent optical devices comprise contact lenses and/or spectacles, alone or in combination, that provide for the ability to translate languages by visual and/or audio means and/or may be able to recognize locations, objects, shapes and the like and provide an audio or visual description of the object to a user of the multicomponent optical device.

The invention discloses a double-chamber three-dimensional pouring bioreactor system which comprises a bioreactor, wherein the bioreactor is internally provided with a three-dimensional bracket and is connected with a pouring device. The bioreactor comprises a first chamber filled with common nutritional nutrient liquor and a second chamber filled with inductive culture factors. A dialysis membrane assembly through which components having molecular weight being less than the molecular weight of inductive culture factors in the inductive culture factors can pass is arranged between the first chamber and the second chamber. The three-dimensional bracket is located in the second chamber. According to the double-chamber structural design of the bioreactor disclosed by the invention, the common nutritional nutrient liquor and the inductive culture factors in the two chambers are independently exchanged, and the inductive culture factors can be preserved while the common nutritional nutrient liquor is changed, so that the use level of the inductive culture factor is greatly reduced, the effective utilization ratio of the inductive culture factors is improved, and the cost is lowered.

A bioreactor with an upward flowing impeller system for controlling a mammalian cell culture process is provided. The disclosed system enables control of the cell culture process by controlling the level of dissolved carbon dioxide in the cell culture media and prevent increases in the osmolality level is achieved by enhanced stripping of carbon dioxide via surface gas exchange with little or no damage to the mammalian cells. The use of an upward flow impeller combined with vertical baffles converts the swirling motions of the cell culture media into a largely vertical flow and promotes the removal of dissolved carbon dioxide via surface gas exchange with a sweep gas flowing over the top surface of the cell culture media within the bioreactor vessel.

The invention is directed to a desiccant container which includes—a hanger element (12, 135) for suspension in a zone from which it is desired to remove moisture; a desiccant arrangement (14, 154) comprising at least one moisture permeable receptacle containing a supply of desiccant, the desiccant arrangement being—suspended from the hanger element (12, 135); and a flexible protective sleeve (18, 101), at least a part of which is moisture permeable, arranged about the desiccant arrangement (14, 154), wherein the sleeve is mounted on the hanger element (12, 135) independently from the desiccant arrangement.

The invention discloses a calcium phosphate bone cement with a hollow through structure, a preparation method and an application thereof, belongs to the technical field of calcium phosphate bone cement, wherein the calcium phosphate bone cement with a hollow through structure comprises a solid phase and a solidifying liquid, the solid phase comprises calcium phosphate powder and a fiber mixture, the fiber mixture is an absorbable fiber and a fibrin fiber, and the diameter of the absorbable fiber is 100-500mum, the length is 0.5 mm-1.5 mm, preferably, that diameter of the absorbable fiber is 200-400mum. The prepared calcium phosphate bone cement can form three-dimensional connected macropores, promote cell adhesion and proliferation, and improve the mechanical strength of the bone cement.

The invention relates to a catalytic activation layer for use in oxygen-permeable membranes, which can comprise at least one porous structure formed by interconnected ceramic oxide particles that conduct oxygen ions and electronic carriers, where the surface of said particles that is exposed to the pores is covered with nanoparticles made from a catalyst, the composition of which corresponds to the following formula:

A_1-x-yB_xC_yO_R where: A can be selected from Ti, Zr, Hf, lanthanide metals and combinations thereof; B and C are metals selected from Al, Ga, Y, Se, B, Nb, Ta, V, Mo, W, Re, Mn, Sn, Pr, Sm, Tb, Yb, Lu and combinations of same; and A must always be different from B. 0.01 <x<0.5; 0<y<0.3.

The invention provides a rotary type scarification device for a no-till sowing machine, and belongs to the technical field of agricultural machinery. The rotary type scarification device mainly aims to achieve the purposes of deep scarification, correct placement and deep placement, comprises a rack and a gutter-plough for fertilization and is characterized by further comprising a transmission speed change assembly arranged in the middle of the rack, a scarification knife assembly which is arranged on the rack and is located in front of the gutter-plough for fertilization and a front soil processing device, the scarification knife assembly comprises a short scarification knife and a long scarification knife which are vertically parallel to each other and arranged side by side, a first set of curved knife teeth at the lower end of a long knife rod of the long scarification knife are curved downwards and are fixedly connected to the long knife rod, other sets of curved knife teeth are curved upwards, are arranged at intervals in the length direction of the long knife rod and are in occlusion with downward-curved knife teeth of the short scarification knife, and the long scarification knife can go deep into the soil by 200 mm to 300 mm in the length direction. The transmission speed change assembly converts the horizontal power for pulling a device into the rotating force of the scarification knife assembly in the vertical direction.

The invention discloses a bioreactor, a stirring paddle thereof and a method for cultivating TIL cells through the bioreactor. The stirring paddle is wrapped by a material for reducing shear force. The bioreactor comprises the stirring paddle wrapped by the material for reducing shear force, and TIL cells are cultivated through the bioreactor. As TIL cells are cultivated through the bioreactor, and the stirring paddle is wrapped by the material capable of reducing shear force, damage of shear force to cells can be reduced, and mass amplification of cells is facilitated. In the cultivating process, stirring continues, a dynamic system is provided, cells can conduct gas exchanging, the even cultivating environment can be provided for cells, and mass amplification of cells is facilitated. By means of the method, mass amplification of TIL cells can be conducted, the expression quantity of surface antigens of obtained TIL cells is high, and tumor cell killing activity is high.

A technological line for rearing and/or breeding of flightless insects and/or larval forms of insects includes at least one level, being an autonomous conveyor belt with lateral sidewalls on both sides. The sidewalls have upper edges curved inwardly at least once, with a bending angle not less than 30°. Transverse brackets extend generally perpendicularly to and connect the sidewalls, and support the belt. The sidewalls are structural elements supporting edges of the belt, so that both the conveyor belt and the lateral sidewalls form a trough profile, and the pressure of the mass of the insects, which are on the surface of the belt and potentially additionally of the feed and/or excrement of insects press down on the edges of the belt against the sidewalls. The brackets and the sidewalls are made of a material with efficient heat conducting properties. A modular system and a method utilize the technological line.

The present disclosure relates generally to multicomponent optical devices having a space within the device. In various embodiments, an optical device comprises a first posterior component having an anterior surface, a posterior support component, and an anterior component having a posterior surface. An optical device can also comprise an anterior skirt. The first posterior component and the anterior skirt can comprise gas-permeable optical materials. An optical device also comprises a primary space between the posterior surface and the anterior surface, with the primary space configured to permit diffusion of a gas from a perimeter of the primary space through the space and across the anterior surface of the first posterior component. A method of forming a multicomponent optical device having a space is also provided.

The invention relates to a mixing preparation machine, in particular to a mixing preparation machine for production of silicone glue. The technical purpose is achieved that by means of the mixing preparation machine for production of the silicone glue, the mixing efficiency is high, operation is easy and raw materials are fully stirred. The mixing preparation machine for production of the siliconeglue comprises a bottom plate and the like; struts are arranged on both the left side and the right side of the top of the bottom plate, a driving mechanism is arranged on the upper portion between the left strut and the right strut, mixing mechanisms are arranged on the lower portion of the driving mechanism, a box body is arranged in the middle of the top of the bottom plate, and partial structures of the mixing mechanisms are located in the box body. According to the mixing preparation machine for production of the silicone glue, the effects that the mixing efficiency is high, operation iseasy and the raw materials are fully stirred are achieved; the driving mechanism is used as a main power source, the mixing mechanisms are driven to mix and stir the raw materials, moreover, throughwork of a rotating mechanism, the box body is driven to rotate, further the raw materials in the box body are fully mixed, and mixing is accelerated by means of stirring mechanisms.

The invention discloses a two-dimensional code information reading device for an ancient and famous tree signboard. A tree, a fixing device and the two-dimensional code information reading device are involved; the two-dimensional code information reading device is connected with a trunk of the tree through the fixing device; the fixing device is provided with a round hoop; one side of the hoop is connected with the two-dimensional code information reading device; a gap is formed in the other side of the hoop, and two sides of the gap are connected with long strips; rubber convex pieces are uniformly distributed on the inner side wall of the hoop around the axis; through holes are formed in the long strips in a spacing manner; the fixing device penetrates through the through holes of the long strips through screw rods and are matched with nuts to fix the two-dimensional code information reading device on the tree; a cavity is inwards concavely formed in the two-dimensional code information reading device. The two-dimensional code information reading device for the ancient and famous tree signboard is simple in structure and multifunctional; people can check information of an ancient tree conveniently, while the skin of the ancient tree is not damaged; the two-dimensional code information reading device is very practical and convenient.

The invention discloses a temperature-adjustable pig breeding house which comprises a wall, a water pump and an atomization nozzle. A water storage tank is fixed onto the left side of the wall, a water inlet pipe is mounted on the upper portion of the water storage tank, the water pump is positioned in the water storage tank, a water suction pipe is fixed onto the right side of the water pump, a hoop is arranged outside a water conveying pipe, the atomization nozzle is positioned in the wall, a door is mounted in the front of the wall, an air conveying pipe is arranged on the right side of a fan, an activated carbon water absorption plate is mounted in a heating box, and a handle is fixed onto the right side of the activated carbon water absorption plate. Compared with an existing common pig breeding house, the temperature-adjustable pig breeding house has the advantages that temperature in the pig breeding house can be adjusted, pigs can defend against the cold without consuming fat on the pigs, the income of farmers is increased, and the humidity in the pig breeding house can be adjusted, so that the pig breeding house is more suitable for living of the pigs.