44 results about "Body membranes" patented technology

This invention provides a kind of ferroelectric memory body unit. It concludes many parallel first electrodes; many secondly parallel electrodes that are perpendicular to the said first electrodes; ferroelectric memory body membrane that is located between the first and secondly electrodes. The ferroelectric memory body membrane is made from ferroelectric polymer, which is mixed from ferroelectric nanometer crystals and polymer matrix solution. The ferroelectric nanometer crystals disperse in the polymer evenly. It responses quickly to electric field and can avoid fatiguing effectively when repeated converting store status of the memory cell. It can embody ferroelectric well when the thickness is very thin.

The invention discloses an CT image-based osteoporosis parameter automatic measurement method. The method comprises the following steps: 1) constructing a clinical data taking DXA diagnosis as astandard, and constructing a corresponding relation between a CT value of a to-be-measured vertebral body layer and bone mineral density measured through the DXA diagnosis; 2) carrying out bone mineral density measurement method correction: carrying out CT scanning on a body membrane with known density, establishing a linear corresponding relationship between a CT value and the bone mineral density of the body membrane, and then carrying out correction to obtain a corresponding relationship between the CT value and the real bone mineral density; 3) performing lumbar vertebra segmentation on the CT scanning image of the to-be-measured object, and then 4) performing bone mineral density calculation. According to the method, three-dimensional measurement is carried out from the three-dimensional CT image. The osteoporosis sensitivity is high. An examiner does not have extra X-rays. The measurement process is automatically and objectively quantified. In addition, bone trabecula morphological parameters and rubbing parameters can be additionally obtained.

The invention provides a NDI-based neurosurgery department navigation registering testing method and a system. The method comprises the steps of performing three-dimensional scanning on a patient head, obtaining a preoperative image, obtaining a 3D model based on preoperative image processing, marking the 3D model, forming a marking point, printing the 3D model which is provided with the marking points, obtaining a 3D printing model and recording the 3D printing model as a body membrane; performing coordinate system registering by means of an optical positioning device NDI; based on a dissection characteristic point, respectively performing rough registering and precise registering, thereby finishing preoperative or in-surgery registering; recording the coordinates of all marking points onthe body membrane by means of a probe tool of NDI, and calculating preoperative or in-surgery registering precision. Through utilizing Goicp, a better registering result can be obtained and registering precision is improved. A head three-dimensional model can be obtained through a simple step. No other operation is required. Simple operation method and easy popularization are realized. Recesses are dug on a manually manufactured model and 3D printing is performed. The registering precision can be simply and quickly tested.

The invention relates to a fluid conveying appliance used for conveying a fluid, comprising a valve body seat, a valve body cover body, a valve body membrane, a plurality of temporary storage chambers and a rapping device, wherein, the valve body seat is provided with an outlet passage and an inlet passage; the valve body cover body is arranged on the valve body seat; the valve body membrane is arranged between the valve body seat and the valve body cover body; a first temporary storage chamber is formed between the valve body membrane and the valve body cover body, a second temporary storage chamber is formed between the valve body membrane and the valve body seat, wherein, the first temporary storage chamber and the second temporary storage chamber are respectively provided with a guidance face structure extending from an outer edge to a central direction; and the periphery of the rapping device is fixedly arranged on the valve body cover body, and a pressure cavity chamber provided with one guidance face structure on the periphery is formed between the rapping device and the valve body cover body.

The invention is applicable to the technical field of operation training devices, and provides a tumor respiratory movement simulation platform and a tumor position estimation method, the tumor respiratory movement simulation platform is used for percutaneous puncture operation, and comprises a human abdomen phantom which is of an inner hollow structure and is covered with humanoid skin, and positioning mark points are arranged on the humanoid skin; the air bag is fixedly arranged in the human abdomen phantom and can be circularly inflated and deflated, and the air bag is always kept in contact with the humanoid skin in the inflating and deflating process; the guide rail is arranged on the human abdomen body membrane and is opposite to the humanoid skin; the displacement plate is connectedto the guide rail in a sliding mode, one side of the air bag abuts against the displacement plate, and the displacement plate reciprocates on the guide rail along with inflation and deflation of theair bag; and the puncture simulation body is fixedly arranged on the displacement plate, and a puncture target point is arranged in the puncture simulation body. According to the invention, a puncturescene closer to clinic is provided for doctors.

The invention provides a laminated sheet type magnetic bead. The laminated sheet type magnetic bead comprises a laminated body, end electrodes and an inner electrode coil. The end electrodes are located on the two sides of the laminated body and connected with the two ends of the inner electrode coil respectively. The laminated body comprises multiple layers of base body membranes, the inner electrode coil is formed by sequentially connecting inner electrode units located between different layers of base body membranes, each inner electrode unit is provided with a leading-out end and a leading-in end, the leading-out ends and the leading-in ends of every two adjacent inner electrode units of the inner electrode coil are connected through fuse metal connecting pieces, when the temperature of the inner electrode coil is higher than that of the fusion points of the fuse metal connecting pieces, the fuse metal connecting pieces are fused, and the inner electrode coil is disconnected. The fuse metal connecting pieces are adopted for connecting every two adjacent inner electrode units, so that the laminated sheet type magnetic bead has the magnetic bead function and the fuse function at the same time.

The present invention discloses a gas sensor, which comprises a housing having an inner cavity, a temperature and humidity detection device, a composite oil-gas separation membrane and a gas-sensitive element, wherein the temperature and humidity detection device, the composite oil-gas separation membrane and the gas-sensitive element are arranged inside the inner cavity, the lower end of the housing is provided for connecting with an oil supply electrical device, the composite oil-gas separation membrane comprises a body membrane and a porous metal sintering sheet arranged on the body membrane, the composite oil-gas separation membrane is arranged inside the inner cavity of the housing through the body membrane lower end toward the housing, the gas-sensitive element is positioned on one side of the porous metal sintering sheet of the composite oil-gas separation membrane, and the temperature and humidity detection device is positioned on one side of the body membrane of the composite oil-gas separation membrane. According to the present invention, the gas sensor has characteristics of small volume, simple installation, low cost and the like; and the trace moisture, the oil temperature and the fault gas content in insulating oil can be concurrently detected, real-time compensation correction can be performed on the detection result according to the insulating oil temperature detected by the temperature and humidity detection device, the problem of inaccurate detection can be solved, and the detection precision of the gas sensor can be increased.

The invention belongs to the technical field of nano-imprinting, particularly discloses a composite template for the nano-imprinting and a preparation method of the composite template and aims to produce a nano-imprinting template having the characteristics of small size, large area, easiness in demolding and recyclable use. The preparation method comprises the following steps of firstly, preparing an elastic body membrane by utilizing thermal imprinting manner; secondly, obtaining a nanostructure on the surface of the elastic body membrane in a thermal imprinting manner; thirdly, depositing a silicon dioxide transition layer on the nanostructure by utilizing a PECVD (Plasma Enhanced Chemical Vapor Deposition) method; finally, carrying out adhesion prevention treatment by utilizing chlorosilane, thus obtaining the composite template. The composite template prepared by utilizing the preparation method comprises a silicon dioxide layer, and the silicon dioxide layer has high elasticity modulus, so that the high resolution is guaranteed; as an elastic body layer has good elasticity, the fitting tightness of the composite template with a substrate during imprinting is improved.

A cartridge sealed from ambient air is used to send a liquid without causing the liquid to contact the fluid inside the cartridge. Inside of the cartridge 1 sealed from ambient air are provided chambers that send and receive reagents, and an elastic body membrane 51 is attached to the bottom surface. The cartridge main body 51 does not have a groove or anything else that becomes a channel, and the membrane 51 is not bonded to portions that become channels. A channel, not formed in a normal state, is formed upon deforming the membrane 51 under air pressure in the unbonded portion, and the fluid is moved inside. A valve function is provided at an inlet of each chamber, and the fluid is internally moved in any direction with channel deformation.

The invention discloses a strain diagram identification method based on ultrasonic transient elastography. The strain diagram identification method can be applied to identifying strain diagrams of body membranes, liver tissues and non-liver tissues. On the basis of the ultrasonic transient elastography and diagram processing, the obtained strain diagrams are analyzed through a series of algorithms, and the strain diagrams of the different tissues are identified and judged according to an algorithm processing result. The method includes the first method of diagram identification based on a strain diagram grey value, the second diagram identification method based on a strain diagram grey value turning rate and the third strain diagram identification method of filtering out border lines. Thecalculation result is subjected to statistic analysis, an optimal threshold value is selected to serve as the mark for the diagram identification, and the identification precision is improved.

The invention provides a polyphenylene sulfide fiber fabric with a body membrane and a manufacture method thereof, aiming to solve the problem that a needled felt with a covering membrane enables micropores of the covering membrane to shrink during a hot pressing process, and contraction of a polyphenylene sulfide micropore can be again caused in use due to a high-temperature work condition so as to seriously affect the ventilation effect, and even affect the normal production of dust-removal enterprises; and the needled felt is subjected to repeated impact of air current and machines when the ash is cleared, and the covering membrane is easy to drop off. The invention adopts the essential that the surface of the polyphenylene sulfide fiber fabric is provided with a layer of the body membrane produced by singeing and hot roller pressing. The invention has the characteristics of no dropping of the body membrane, good ventilation property, high dust-removal efficiency, smooth surface and easy ash clearing.

Methods and preparations for treating disorders of the eye and / or causing posterior vitreous disconnection or disinsertion. Preparations containing (a) urea, (b) urea derivatives (e.g., hydroxyurea, thiourea), (c) a non-steroidal anti-inflamatory agent, (d) antimetabolites, (e) urea, urea derivatives, non-enzymatic proteins, nucleosides, nucleotides and their derivatives (e.g., adenine, adenosine, cytosine, cytadine, guanine, guanitadine, guanidinium, thymidine, thimitadine, uradine, uracil, cystine), uric acid, calcium acetal salicylate, ammonium sulfate or other compound capable of causing non-enzymatic dissolution of the hyaloid membrane or (e) any of the possible combinations thereof, are administered to the eye in therapeutically effective amounts.

An inflatable vest capable of monitoring and controlling the amplitude and phase of respiratory motion, the inflatable vest comprising front pieces (1), a back piece (2), at least one inflatable layer (8), in the front pieces (1) and back piece (2), divided into an inner layer, an outer layer, and a middle, and at least one of the front pieces (1) and back piece (2) are made of a polymeric material impermeable to air. The inflatable vest may be connected to a pressure measurement device (11), i.e. a flow sensor (14) or pressure sensor (13), and by means of the pressure measurement device (11), the pressure of the gas in the inflatable layer (8) of the inflatable vest is monitored in real time and changed into an electrical signal. In the inflatable vest, the front piece inner layer (1) and outer layer can be directly stitched or adhesively fixed on a vacuum pad (14), the vacuum pad (14) serving as the back piece (2), thus forming a combination inflatable vest; or, after a body membrane is fixed, the inflatable vest is again placed below the body membrane and used in combination. By means of monitoring and controlling the pressure inside the inflatable vest inflatable layer (8), the amplitude and phase of respiratory motion can be monitored and controlled in real time.

The invention relates to a fluid transporting device used for transporting a fluid. The fluid transporting device comprises a valve body seat with an outlet channel, a valve body cover, a valve body membrane, an actuating device and an inlet sealing component, wherein part of the valve body cover is overlapped and combined with the valve body seat and the valve body cover is provided with an inlet channel and a pressure chamber; the valve body membrane is arranged between the valve body seat and the valve body cover; the periphery of the actuating device is fixed on the valve body cover; and the inlet sealing component is arranged between the valve body cover and the actuating device and provided with an inlet valve, and the inlet valve is arranged between the pressure chamber and the inlet channel.

The invention relates to a multiple-sprue fluid conveying appliance used for conveying fluid, which comprises a valve body seat provided with at least one outlet passage and at least one inlet passage, a valve body cover combined with the valve body seat mutually in a stacking way, a valve body membrane arranged between the valve body seat and the valve body cover and provided with over two valve structures having same thickness and made of same material, a plurality of temporary storage rooms arranged between the valve body membrane and the valve body cover and between the valve body membrane and the valve body seat, and a rapping device, wherein the periphery of the rapping device is fixedly arranged at the valve body cover.

The invention relates to a diaphragm valve having a a valve body housing lower part, one secured to the lower housing portion the upper housing part, one cooperating with the valve body membrane, connected to the diaphragm, axially adjustable spindle and a to the membrane a pressure-exerting thrust piece, wherein the lower housing part a is extending in the direction of the housing top pot having in which the membrane is housed, and the housing upper part is mounted in or on the pot, being provided in the upper housing part a acting on the edge of the membrane and urgent in the direction of the housing lower part pressure element.

The invention discloses an ultrasonic extraction method of a complete ladderane lipid in anaerobic ammonium oxidation bacteria. The complete ladderane lipid is a special phosphatide existed on intracellular anaerobic ammonium oxidation body membranes of anaerobic ammonium oxidation bacteria. Research shows that complete ladderane lipid used as a research object can provide a new thinking and new support information for anaerobic ammonia oxidation research with important ecological and physiological research meaning. The operation flow of the method comprises: sampling-freeze drying-extract addition-ultrasonic extraction-extract component proportion adjustment-centrifugal separation-nitrogen sweeping condensation. After analysis of HPLC-MS, the method provided by the invention is proved to have good effect and high extraction purity.

The invention relates to a medical body membrane storing and taking system comprising a transport device, a controller, a storage device and a two-dimensional code sign with patient information. The transport device is provided with a reading device for reading the two-dimensional code sign, the reading device is connected to the controller, the controller is used for distributing or identifying astorage address according to the two-dimensional code sign, the transport device is used for storing body membranes to the storage device according to the allocated storage address, or the transportdevice is used for taking the body membranes from the storage device according to the identified storage address. The system controls the transport device to store and take the body membranes throughthe controller, automatic storing and taking of the body membranes are achieved, losing and wrong taking of the body membranes are avoided, and a guarantee is provided for further realizing of preciseradiotherapy. The body membranes are stored in all storage boxes to prevent the body membranes from being deformed by collision between the individual body membranes.

The invention discloses a preparation process of an adhesive-free expanded block. The method comprises the following steps of (1) cutting a membrane, (2) putting an expanded body into a mold, specially, the mold containing the expanded body comprises an expanded body membrane laminated body which is positioned at the most middle, two frame-type clamps which are connected to the expanded body membrane laminated body and are arranged symmetrically up and down, two pressing plates which are arranged symmetrically up and down, and two fastening blocks which are arranged on the left and the right of the upper pressing plate and the lower pressing plate and are arranged symmetrical up and down; the pressing plates are located in the frame-type clamps, and the two pressing plates are tightly attached to the upper surface and the lower surface of the expanded body membrane laminated body; and the upper frame-type clamp and the lower frame-type clamp are connected through bolts and the upper fastening block and the lower fastening block are connected through bolts, (3) heating and preheating, preheating pressing, (4) high-temperature curing and heat pressing, and (5), cooling and shrinking,and lower mold trimming. According to the method, an adhesive is not introduced in the heat pressing process, the bonding strength of the expanded block is completely dependent on three process parameters of temperature, pressure and time, and the three process parameters are easy to control, other substances are not introduced in the high-temperature curing and the heat pressing process, so thatthe safety of the product is improved.

The invention relates to a diaphragm valve having a a valve body housing lower part, one secured to the lower housing portion the upper housing part, one cooperating with the valve body membrane, connected to the diaphragm, axially adjustable spindle and a to the membrane a pressure-exerting thrust piece, wherein the lower housing part a is extending in the direction of the housing top pot having in which the membrane is housed, and the housing upper part is mounted in or on the pot, being provided in the upper housing part a acting on the edge of the membrane and urgent in the direction of the housing lower part pressure element.

The invention discloses a mobile phone body composite film. The mobile phone body composite film sequentially comprises a glass substrate, a first Cr layer, a TiO2 layer, a second Cr layer and a SiO2layer, wherein the glass substrate, the first Cr layer, the TiO2 layer, the second Cr layer and the SiO2 layer from bottom to top, and the first Cr layer, the TiO2 layer, the second Cr layer and the SiO2 layer are sequentially composited on the glass substrate through an electron beam evaporation coating method in a stagger manner. The film layers of the mobile phone body composite film are good in adhesive force when adhering to the substrate, and the adhesive force of each layer is 4B; the mobile phone body composite film is good in surface hardness, and the surface hardness ranges from 2H to 3H, and color is not prone to fading; and the mobile phone body composite film can be applied to a mobile phone rear cover, a tablet computer rear cover, a video player rear cover, a television body, an intelligent watch rear cover and the like. The invention further provides a preparation method of the mobile phone body composite film.

The invention provides an elastic tongue limb fixing type radiation treatment body part positioning hollow fixing frame which is composed of two parts of an elastic tongue limb fixing type fixing frame and a tenon-and-mortise limb fixing type body membrane. The elastic tongue limb fixing type radiation treatment body part positioning hollow fixing frame is mainly applied to conformal external contour position limiting and fixing of the inferior belly part of a patient. The principle of dual locking of a tenon-and-mortise structure and an elastic tongue buckling lock and the design of an integrated membrane strip and a hollow bottom plate are adopted so that accurate positioning can be achieved, operation is enabled to be more convenient and dose is enabled to be more accurate, the fixing bottom plate and a treatment couch are enabled to be integrally connected and error rate can be reduced. The design of the cross stress structure of the elastic tongue structure and a pressing plate is scientific so that loosing in the application period and an event of damage to the human body can be avoided. All shortcomings and defects in existing radiation treatment positioning structures can be effectively solved. The elastic tongue limb fixing type radiation treatment body part positioning hollow fixing frame is reasonable in design, convenient and safe to operate, environment-friendly, obvious in the fixing effect and relatively high in practicality and generality.

The invention relates to a device for managing thoracic and abdominal respiratory movement through abdominal compression and a manufacturing method, and belongs to the technical field of medical instruments. Through a method for scanning and positioning CT / MRI by conducting compression deformation on an abdomen positioning image of a patient or holding breath after the patient exhales to the maximum degree, an abdomen compression layer conforming to the body shape and the anatomical structure (tumor) of the patient is designed, the abdomen compression layer and a fixing body film are integrally formed in a 3D printing mode through a 3D printer, the abdomen is tightly compressed and wrapped in an all-dimensional and dead-angle-free mode, and gaps or spaces of abdominal visceral organs moving along with breathing are reduced to the maximum extent. According to the method, abdominal respiration of the patient can be converted into shallow chest respiration as far as possible, so that the abdominal respiration movement amplitude of the patient can be controlled to be 0.5 cm or below, the movement amplitude of thoracic and abdominal tumors along with respiration is effectively reduced, operation is easy and convenient, repeatability is high, the patient comfort degree is high, and precise radiotherapy is promoted to the maximum extent.

The invention relates to a test tube membrane structure, belongs to the field of medical equipment and specifically relates to a disposable test tube membrane structure. The disposable test tube membrane structure comprises a supporting body membrane sleeve and a pipe body membrane sleeve; the supporting body membrane sleeve is used for covering a test tube slot arranged on a test tube supportingbody; and the supporting body membrane sleeve is arranged to be opposite to the test tube slot and is capable of generating deformation towards the inside of the slot with the insertion of a test tubeso as to sleeve the outer surface of the test tube. The test tube membrane structure is capable of keeping a test tube rack clean, convenient to use in an existing constant-temperature test tube rack, simple in structure and capable of effectively reducing the probability of cross pollution.