121 results about "Silicone membrane" patented technology

The invention relates to the technical field of phototherapy instruments, in particular to a light system of a phototherapy mask and a phototherapy method.The light system comprises a mask body, a flexible lamp panel, a lamp wick module, a phototherapy detection module, a silica gel film and a breathable film, the mask body is provided with a sinking groove, the flexible lamp panel is arranged in the sinking groove, the lamp wick module and the phototherapy detection module are both arranged on the flexible lamp panel, and the silica gel film is arranged on the silica gel film. The silica gel film is arranged on the sinking groove and covers the lamp wick module and the phototherapy detection module; the phototherapy detection module comprises a temperature sensing module, a distance measuring module and a humidity sensing module, the silica gel film is provided with a light-transmitting groove, the light-transmitting groove is opposite to the lamp wick module, the breathable film is arranged on the silica gel film, the breathable film is provided with a through groove, and the through groove is opposite to the light-transmitting groove, so that the lamp wick module is exposed. Through ingenious combination of the mask body, the flexible lamp panel, the lamp wick module, the phototherapy detection module, the silica gel film and the breathable film, high integration of the phototherapy equipment is realized.

A composition is provided that includes a graphene dispersion, a silicone microemulsion, a reactive siloxane emulsion, and water as a majority by weight of the composition. A process for imparting a durable shine to a vehicle surface is also provided. The composition is applied to the vehicle surface. The water is allowed to evaporate from the composition to form a coating imparting a durable shine to the vehicle surface. A coating is obtained after evaporation. The coating includes a silicone film formed by the evaporation of water from a silicone microemulsion and the cross-linking of a siloxane from an emulsion. Graphene particles are embedded in the silicone film. The coating has a thickness of between having a thickness of between 5 and 10,000 nanometers and a hardness of between 3 and 7 GPa.

The utility model provides a chuck structure for wafer polishing, which comprises a silica gel film, a limiting mechanism, a rotary cleaning mechanism and a chuck body, a soft magnetic ring is fixedly connected below the silica gel film, a groove is arranged on the annular side surface of the chuck body, magnetic rings are symmetrically sleeved on the annular side surface of the chuck body, a chassis is mounted on the lower side of the chuck body, and a mounting ring is fixedly connected on the upper side of the chassis. A plurality of round holes are formed in the annular side face of the installation ring in a penetrating mode, a sliding groove is formed in the upper portion of the square block, the sliding block is slidably installed in the sliding groove, the annular side face of the limiting column is sleeved with a round piece, and a spring is installed on the left side of the round piece. Compared with the prior art, the polishing device solves the problems that a worker needs to additionally use a tool for cleaning, and the convenience is not high, is reasonable in structure and good in practicability, enhances the stability of a silica gel film through the arrangement of a limiting mechanism, enables the silica gel film to be not prone to falling off, facilitates cleaning of polishing chippings, and has high portability.

The invention relates to the technical field of medical instruments, provides a catheter assembly with flow regulation, backflow prevention and self-adaptive sealing functions, and particularly relates to a peripheral vessel catheter assembly for hemodialysis. The self-adaptive anti-backflow catheter mainly comprises a catheter body, a flow adjusting and anti-backflow linkage unit and a self-adaptive sealing unit. The independent cavities of the main channel and the auxiliary channel can avoid turbulent flow generated by mixing of high-flow blood and medicine in the single-cavity catheter, so that mechanical damage to blood cells is reduced, the flow adjusting and backflow preventing linkage unit accurately adjusts flow through a pressure induction type adjusting piece, a lever mechanism and simple mechanical transmission, and the flow adjusting effect is good. And a bistable silica gel membrane backflow blocking petal and an electromagnetic locking device are matched, so that backflow is reliably prevented. The hemodialysis device has excellent performance in the aspects of flow regulation, backflow prevention, sealing and self-cleaning, and the safety and effectiveness of hemodialysis are remarkably improved.

The utility model provides full-automatic foam sheet production equipment, and relates to the technical field of foam production, the full-automatic foam sheet production equipment comprises a rack, the rack is provided with a half-cutting unit, an outer contour die-cutting unit, a waste discharge unit, a temporary storage device and a discharging device, the half-cutting unit comprises a thickness detection tool apron and a foam half-cutting device, the outer contour die cutting unit comprises a silica gel film composite tool apron and a flat cutter die cutting machine, the waste discharging unit comprises a traction code spraying tool apron and a waste discharging tool apron, the foam material belt is subjected to semi-cutting processing through the semi-cutting device, then the foam material belt subjected to semi-cutting is subjected to shape cutting, and finally a foam sheet is obtained; the foam or release paper can be partially torn off during use, and meanwhile, the equipment is further provided with a thickness detection device and a defective product code spraying device, so that defective foam sheets can be distinguished and removed.

The invention discloses an aluminum wood door and window capable of being automatically sealed, and belongs to the technical field of doors and windows, the aluminum wood door and window comprises an aluminum alloy outer frame, an inner frame and an inflation handle assembly, tight sealing of the door and window is achieved through cooperation of a magnetic attraction assembly and an automatic sealing assembly, and the door and window is provided with a magnetic cavity in which the magnetic attraction assembly is arranged; the inflation state can be controlled through the inflation handle assembly, then the penetrability of a magnetic field is adjusted, adsorption and release of the self-sealing assembly are achieved, the self-sealing assembly comprises a silica gel film layer and a sealing plate, the sealing plate is driven by magnetic force to move, and the silica gel film layer is made to be tightly attached to the aluminum alloy inner frame to achieve the sealing effect. The aluminum-wood door and window is easy and convenient to operate and excellent in sealing performance, rainwater permeation can be effectively prevented, the comfort and safety of the living environment are improved, and meanwhile a user can conveniently find and handle the water seepage problem in time.

The utility model discloses a glue spreading structure for AB glue in a curved-surface tempered film, which relates to the technical field of curved-surface tempered films and comprises a curved-surface tempered film, an AB glue layer and a PC (polycarbonate) back plate, the four edges of the curved surface tempered film are bent towards the release surface of the curved surface tempered film to form a curved surface, the curved surface tempered film covers and presses the PC back plate, the PC back plate is convexly provided with a convex step towards the direction of the curved surface tempered film, the convex surface of the convex step is attached to the release surface of the curved surface tempered film, and the convex surface of the convex step is attached to the release surface of the curved surface tempered film. The side faces of the periphery of the convex step are all attached to the curved surface of the periphery of the curved surface tempered film. The AB adhesive layer comprises a silica gel film, a base material, an OCA optical adhesive and a release film which are laminated, the silica gel film is attached to the release surface of the curved-surface tempered glass film, AB adhesive can be uniformly distributed on the curved-surface tempered glass film, and the formation of height difference and generation of gaps are avoided, so that the curved-surface tempered glass film can be completely attached to a mobile phone screen, and the service life of the mobile phone screen is prolonged. The problem of unbalanced glue spreading of the AB glue layer on the release surface of the curved-surface tempered film is solved, and the curved-surface tempered film is convenient to use.

The coating device comprises a gluing roller, a glue pressing roller, an extrusion assembly and a film passing roller, the gluing roller and the film passing roller are arranged in a left-right spaced mode, the glue pressing roller is located on the upper right portion of the gluing roller and arranged in a spaced mode, the extrusion assembly is located above the gluing roller and located on the left side of the glue pressing roller, and the extrusion end of the extrusion assembly faces the gluing roller; the extrusion assembly comprises a plurality of extruders, guide rods, a driving rod and a driving assembly, the plurality of extruders are arranged at intervals, guide holes and fixing holes are formed in the extruders, the guide rods sequentially penetrate through the plurality of guide holes, and the fixing holes sequentially penetrate through the plurality of fixing holes and are connected with the extruders; the driving assembly drives the driving rod and the extruder to reciprocate in the axis direction of the driving rod, and by the adoption of the device of the scheme, waste of raw materials is little, and discharging can be conducted according to the film thickness.

The utility model discloses a sample preparation mold for a road petroleum asphalt ductility test, which relates to the technical field of road petroleum asphalt ductility tests and comprises an outer mold, an end mold and a shoulder mold which are combined into a mold main body, and a mold cavity is formed in the mold main body. The face, facing the mold cavity, of the outer mold, the face, facing the mold cavity, of the end mold and the face, facing the mold cavity, of the shoulder mold are each provided with a silica gel layer used for preventing asphalt adhesion. According to the sample preparation mold for the road petroleum asphalt ductility test, the contact surface of the outer mold and the petroleum asphalt, the contact surface of the end mold and the petroleum asphalt and the contact surface of the shoulder mold and the petroleum asphalt are all provided with the silica gel films which are not adhered to the petroleum asphalt, so that compared with the use of a separant, the sample preparation mold for the road petroleum asphalt ductility test can be used without early-stage preparation; and normal demolding of the petroleum asphalt ductility test sample preparation can be ensured.

The invention relates to the technical field of electric automobile wire harnesses, in particular to a wheel speed sensor wire harness assembly for an electric automobile, which comprises a wire harness connector and a wheel speed sensor, and further comprises a linear sleeve, a positioning sleeve, a limiting assembly, curved sleeves, a corrugated sleeve and a silica gel film, the two sides of the corrugated sleeve are connected with the curved sleeves, and the ends of the curved sleeves are connected with the linear sleeve. The linear sleeve and the curve sleeve are arranged on the outer side of the line body to form an air bag structure, when the curve part is stretched during steering of the front wheel, the line body is twisted in a large-span mode, and the linear sleeve and the curve sleeve can further move relative to the limiting assembly through the positioning sleeve; the problems that when a vehicle turns, the connecting portions of the two ends of the wire harness assembly connected with the wheel speed sensor at the front wheels of the electric vehicle are damaged due to frequent stress torsion, the exposed area is large due to reserved redundancy, and the wire harness assembly is prone to being impacted by splashing gravel and damaged are solved.

The utility model relates to the technical field of clothing labels, in particular to a liquid silica gel clothing trademark which comprises a base layer, a liquid silica gel film, a silica gel limiting layer, a thermal bimetallic strip and a hot melt adhesive layer, the liquid silica gel film covers the top face of the base layer, a gap exists between the liquid silica gel film and the base layer, and the silica gel limiting layer is located on the top face of the base layer and connected with the base layer. A gap is formed in the substrate layer, a gap matched with the gap in shape is formed in the silica gel limiting layer, the liquid silica gel film can extend outwards along the gap to generate elastic deformation, the gap is filled with the thermal bimetallic strip to be connected with the liquid silica gel film, and the hot melt adhesive layer is located on the bottom face of the substrate layer to be connected with the substrate layer. The three-dimensional degree of the mark / logo on the trademark can be changed according to different temperatures, the style and the structure of the trademark can be enriched, practical significance and popularization value are achieved, and it is expected that good economic benefits can be generated.

A highly-breathable closed cell culture device includes: a base; a reactor housing, located above the base and connected to the base to form a closed chamber; a gas exchange assembly, located above the base and communicated with the closed chamber; a first liquid exchange assembly, located above the reactor housing and connected to the reactor housing; and a second liquid exchange assembly, located on a side wall of the reactor housing and communicated with the closed chamber. A filter is provided in the first liquid exchange assembly, and a filtration membrane is built in the filter in a folded or stacked manner. A gas permeation rate of the filter is 5 L / min-30 L / min, and an area of the filtration membrane is greater than 2,700 mm2. The culture device solves the problems that the bottom breathable silicone membrane bulges due to negative pressure when pumping the culture medium.

Title: LIQUID MAKEUP COMPOSITION COMPRISING SILICONE FILM FORMERS, OILS, A SILICONE GUM AND PIGMENTS AND METHOD FOR IMPLEMENTING IT. The present invention relates to a liquid cosmetic makeup for human keratinous materials, in particular skin and / or lips, preferably lips, comprising: - at least 20% by weight of at least one first nonpolar hydrocarbon oil, linear or branched, preferably saturated, having 8 to 16 carbon atoms, - at least one second oil selected from silicone oils, volatile or non-volatile, - at least one silicone elastomer carried in a hydrocarbon or silicone oil, identical or not to the first or second oil(s), - at least one silicone resin, - at least one silicone polyamide, - at least one silicone gum, - at least 8% by weight of pigments, possibly water with a content of less than 5% by weight,- the weight ratio (silicone resin + silicone polyamide) / pigment(s) being between 1 and 2.7. It also relates to a makeup process, in which this composition is applied to said keratinous materials.

A membrane device includes a vacuum device main body having a plurality of vacuum holes such that a real wood sheet to be temporarily attached to a core is mounted in the vacuum device main body, a cover having a silicone film to define a vacuum space together with the vacuum device main body, a vacuum module to suck air in the vacuum device main body through the vacuum holes, and a control unit to compress the real wood sheet and the core for a preset time by sucking air in the vacuum space through the vacuum holes. The control unit removes the vacuum from the vacuum space by controlling the vacuum module so that the compressed real wood sheet is detached, and the vacuum device main body includes sliders to perform wrapping the real wood sheet around the inside of the core while moving upward.

The application provides a sodium silicate silica gel cellulose membrane and a preparation method and application thereof, and belongs to the technical field of silica gel membranes. In the application, a sodium silicate solution with viscosity is immersed between plant fibers, part of the sodium silicate on the cellulose membrane reacts with carbon dioxide in the air to produce amorphous silicic acid gel, and the silicic acid gel is converted into silicon dioxide through natural dehydration and drying, so that the silica gel powder and the cellulose film are tightly connected together. The preparation method provided by the application is simple in operation and low in cost, can be used for production and application in ordinary laboratories with insufficient funds, the sodium silicate silica gel cellulose membrane prepared by the method has the characteristics of adsorbing nucleic acids, can replace silica gel membranes on the market to prepare relatively pure nucleic acid samples, and has a shorter operation time and a higher extraction efficiency than that of using only silicon dioxide particles, silica gel particles and calcium carbonate powder to adsorb nucleic acids in a nucleic acid extraction solution.

The invention discloses a diving protective mask supporting temporary oxygen supply in emergency, and relates to the technical field of diving equipment, the diving protective mask comprises a mask body, a breathing tube body connected with the mask body and a soft silica gel membrane arranged at one end of the breathing tube body, and further comprises a gas inlet and outlet mechanism arranged on the outer wall of the breathing tube body, the temporary oxygen generation mechanism is arranged at the bottom of the outer wall of the breathing tube body, and a small amount of oxygen can be temporarily provided when a diver encounters an emergency of oxygen deficit underwater through the temporary oxygen generation mechanism and the gas inlet and outlet mechanism, so that the brain oxygen deficit state is relieved, and when the diver encounters the oxygen deficit condition, the oxygen deficit state is relieved. When the diver is in use, 'suffocated gas' is blown into the bottom bin and reacts with sodium peroxide filled in the loading box to generate a small amount of oxygen, and then the diver can directly inhale the oxygen, so that the diver recovers consciousness, subconscious water inhaling is avoided, and a self-rescue opportunity can be provided for the diver in emergency situations.

The utility model discloses an electrode wrapping and clamping mechanism capable of adapting to patch components of multiple sizes, which comprises two chuck assemblies arranged at electrode ends on two sides of the patch component in a bilateral symmetry mode, and each chuck assembly comprises a movable base with a circular through hole in the center. The cylindrical push rod is fixedly connected with the output end of the micro motor and can reciprocate back and forth along the circular through hole, the semi-conical push head is arranged at the front end of the cylindrical push rod, and the four sets of rotary clamping arms are arranged on the movable base and evenly distributed on the peripheral side of the semi-conical push head. Meanwhile, the top of the rotary clamping arm is covered with a layer of heat-resistant silica gel film used for wrapping the electrode ends on the two sides of the patch component; the utility model has the advantages that the device is suitable for patch component products with various sizes so as to achieve the effect of saving tools.

The utility model relates to the field of automobile air conditioner controllers, and discloses an automobile air conditioner controller for automatic temperature adjustment, which comprises a connecting plate and a shielding film, two adjusters are rotatably mounted on the surface of the connecting plate, the two adjusters are symmetrically distributed by taking the connecting plate as an axis, and a plurality of control buttons are slidably connected to the surface of the connecting plate. Two connecting holes are formed in the inner wall of the shielding film, the shielding film is a silica gel film, a shielding plate is fixedly installed on the inner wall of the shielding film, and one side of the shielding film is movably connected with the surface of the connecting plate; the shielding film is installed on the surface of the connecting plate, the connecting hole matched with the adjuster is formed in the inner wall of the shielding film, and the shielding plate is installed on the inner wall of the shielding film, so that the surface of the connecting plate is shielded by means of the shielding film, impurities and water flow are prevented from entering the air conditioner controller, and the service life of the air conditioner controller is prolonged. And the display on the inner wall of the connecting plate can be conveniently observed by virtue of the shielding plate made of a transparent plastic material.

Method for producing a hydrophilic cover layer (1) of a sensor membrane (2) which has a contact angle q of < 90° with water, comprising - providing a sensor membrane (2) comprising a medium-facing silicone film (3), - Coating the silicone film (3) with diamond-like carbon (DLC), wherein the coating step is selected from physical vapor deposition (PVD), chemical vapor deposition (CVD), for example by ECR (electron cyclotron resonance)-CVD, laser evaporation and sputtering, preferably magnetron sputtering, whereby a cover layer (1) is formed which, during operation, comes into contact with the medium and comprises the diamond-like carbon coating (5) and the silicone film (3), - Treating the cover layer (1) with a sterilizing agent.

The present invention relates to a storage box with a heating function in the field of cosmetics technology. It consists of a cover and a main body. The cover comprises a pressure plate, a silicone film, and a shell. The silicone film is squeezed and installed on the top of the shell through the plate. There are several round holes on the pressure plate, and a number of notches in the silicone film. This storage box with heating function allows makeup brushes to be inserted into corresponding circular holes of suitable diameters. The cross-shaped notches secure the brush heads, suspending them inside the cover. By activating the switch button and using the display screen and rotation buttons to select the drying time, the drying program starts automatically. It conveniently dries makeup brushes and cotton balls, eliminating the need to wait for air drying.

The utility model discloses a kind of folding OCA processing waste production equipment, including rack, pre-pressing device, first die cutting device, second die cutting device, third die cutting device, pressure device, OCA original film unwinding device, single layer silica gel film unwinding device, silica gel protective film finished product winding device, OCA release film winding device, waste PET film winding device, high-viscosity original film unwinding device, waste winding device, release film unwinding device and edge material unwinding device;The pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device are sequentially horizontally and side by side spaced apart on the rack;By cooperating and setting pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device, so that silica gel protective film is cut in multiple times in the process of production, so that processing is smooth, effectively pulls OCA waste, improves processing efficiency, improves product edge bubble, glue and other quality bad, bring convenience for production operation.

The utility model discloses a vacuum film pressing mechanism is arranged in the automatic film sticking machine inside, it includes the mount frame that is arranged in the automatic film sticking machine inside, and is provided with the installation platform on the mount frame, the vertical setting of one side of installation platform top is provided with the support frame, and the horizontal frame is provided with the film pressing plate in the support frame, and the bottom of film pressing plate is provided with the silica gel film that moves with it is synchronous, the jig that is provided with between installation platform and support frame and transports electronic product, and the jig sliding is located on the installation platform, through the jig can be above clamped transport's electronic product and is pasted after the film and is moved to the support frame below and makes the mutual parallel between the jig and film pressing plate, and the jig outside is provided with the air cock that is connected with its pipeline.

This utility model discloses a voice tremor nursing teaching model in the field of nursing teaching aids. It includes a three-dimensional humanoid model with a left lung model and a right lung model positioned at the chest area. The left lung model is covered with a silicone membrane, forming a pleural cavity model. A catheter is located at the top of the left lung model, with one end extending into the pleural cavity model. Air or liquid is injected into the pleural cavity through the catheter to simulate pneumothorax or pleural effusion. The right lung model includes a detachable and replaceable lung cavity model, lung tumor model, and bronchial obstruction model. A bronchial model is located between the left and right lung models, with a microphone connected to the top of the bronchial model. The two forked ends of the bronchial model at the bottom are connected to the left and right lung models, respectively. This device can replace different models to simulate pathological states, allowing students to intuitively experience the differences in voice tremor under different pathological conditions, improving teaching effectiveness and students' clinical skills training level.

The invention discloses a circuit and fuse processing technology of a flexible circuit board. The circuit and fuse processing technology comprises the steps that a release film is pressed and attached to the bottom of a PET silica gel film through an upper rubber roller and a lower steel roller; cutting off the release film at the alignment position of the circuit and the fuse at the bottom of the PET silica gel film through a lower circular knife mold according to the positions of the circuit and the fuse needing to be reserved on the metal foil, and reserving the release film outside the alignment position of the circuit and the fuse; aligning the position, where the release film is cut off, of the PET silica gel film according to the position, where the circuit and the fuse need to be reserved, on the metal foil, pressing and attaching the metal foil to the PET silica gel film with the release film face through an upper rubber roller and a lower steel roller, and cutting out the circuit and the fuse through a lower circular knife mold; a PET silica gel film is attached to the bottom of the metal foil with the cut circuit and the cut fuse, the PET silica gel film and metal foil waste at the bottom of the metal foil are removed, and the cut circuit and the cut fuse are reserved on the PET silica gel film with the release film face.

The utility model belongs to the technical field of household articles, and particularly relates to a refrigerator fruit preservation box which comprises a lower shell, the upper portion of the lower shell is in threaded connection with an upper shell, and the outer portion of the lower shell and the outer portion of the upper shell are jointly and fixedly connected with a plurality of anti-skid blocks which are distributed at equal intervals in an annular array mode. The silica gel films are arranged in the two shells, when the device is used, fruits which are not eaten up at a time can be placed in the two shells, after the two shells are connected, the fruits can be sealed and stored, the two shells are in a closed state after being connected, oxidation of the fruits can be reduced, the two shells after being connected are compact in shape, and the device is convenient to use. When the fruit storage box is placed in a refrigerator to be stored, large space is not occupied, meanwhile, the silica gel film can be stretched and changed according to the shapes of different fruits, the fruit storage box can adapt to the fruits of different shapes to be stored and used, the silica gel film is transparent, the states of the stored fruits can be conveniently observed, and the situation that the fruits are rotted and cannot be known is prevented.

The present disclosure relates to a method for laminating a diaphragm on a housing, a housing, and an electronic device. The diaphragm laminating method includes providing a housing having a transparent region, preparing a decorative film layer, fixing the decorative film layer on the surface of the transparent region, providing a silicone diaphragm to cover the decorative film layer, laminating the silicone diaphragm on the decorative film layer under a vacuum state, removing bubbles between the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing, and removing the silicone diaphragm. The housing diaphragm lamination in the present disclosure is carried out under a vacuum state, and the silicone diaphragm is used to laminate the decorative film layer, effectively removing the bubbles between the decorative film layer and the housing, reducing the lamination difficulty, and making the decorative film layer more closely attached to the housing on the premise of ensuring the effect of the decorative film layer.

The invention relates to a die cutting mechanism and method for solving graphite waste discharge difficulty. The mechanism comprises a first feeding assembly, a second feeding assembly, a die cutting assembly, a first waste discharge assembly, a second waste discharge assembly and a finished product winding assembly which are sequentially connected. The first feeding assembly feeds out graphite and a first silica gel film; the second feeding assembly sends out a second silica gel film; the die cutting assembly punches a product contour; the first waste discharging assembly discharges product contour waste. The second waste discharge assembly discharges the second silica gel film and the first silica gel film; the finished product winding assembly is used for winding the punched products; the viscosity of the second silica gel film is larger than that of the first silica gel film, and the viscosity of the first silica gel film meets the requirement that when the first silica gel film is removed, graphite on the product cannot stick away. Compared with the prior art, the method has the advantages that slag cannot fall off during waste discharge of graphite, and the reject ratio of products is reduced.

The application discloses a soft robot imitating Bobbit worm. The pneumatic bistable driving module of the soft robot is installed on the base through a wire-driven mechanical arm, the root of the four-claw execution module is installed on the pneumatic bistable driving module, and the perception sensor is attached to the four-claw execution module and the pneumatic bistable driving module. The perception sensor is electrically connected with an external acquisition controller, the pneumatic bistable driving module is communicated with an external air pump, and the external acquisition controller is electrically connected with the external air pump. The application can perceive the approaching object in advance and expand the perception range of the soft robot. The energy stored in the bistable diaphragm can be triggered by driving the silicone film capsule, and then the fast closing of the four-claw execution module can be realized, and the response speed of the four-claw execution mechanism is improved. The self-adaptive capture grab can automatically adjust its shape according to the size of the object to implement better grabbing, and the perception sensor on the capture grab increases the friction force when the object is grabbed, so that the purpose of auxiliary grabbing is achieved.

The invention provides a laser measuring device for intraocular lens size detection, which relates to the field of intraocular lenses and comprises a base, a placement table, a fixing mechanism, a laser measuring instrument and a multi-axis movement mechanism, the placing table is fixed at the top of the base; the fixing mechanism is arranged on the placing table and is used for fixing an intraocular lens body to be tested; the laser measuring instrument is arranged above the fixing mechanism; and the multi-axis movement mechanism is arranged on the base, is in transmission connection with the laser measuring instrument and is used for driving the laser measuring instrument to move in a three-dimensional space. According to the laser measuring device for detecting the size of the intraocular lens, silica gel film adsorption and contact are adopted, scratches, indentations or stress concentration possibly caused by a metal clamp are avoided, the precise optical surface of the intraocular lens is perfectly protected, and real nondestructive clamping is achieved.

The present invention relates to a DNA extraction centrifugal disk. The DNA extraction centrifugal disk comprises at least one DNA extraction unit; the front of the DNA extraction unit is provided with a first liquid inlet, a second liquid inlet, a third liquid inlet, a temporary liquid storage area and a filtration area, and the back is provided with a first liquid storage area and a second liquid storage area; a DNA adsorption material is provided in the filtration area; the first liquid inlet and the second liquid inlet are respectively connected to the filtration area through a flow channel; the third liquid inlet is connected to the temporary liquid storage area through a flow channel, and the temporary liquid storage area is connected to the filtration area through a flow channel; the second liquid storage area is connected to the first liquid storage area through a flow channel, and the first liquid storage area is connected to the filtration area through a flow channel. The DNA adsorption material is preferably a silica gel membrane. The present invention integrates the reaction process of the silica gel membrane adsorption method into the centrifugal disk, which can efficiently realize DNA extraction.