44 results about "Micro-needle" patented technology

The invention discloses microminiature needle body high-speed visual screening equipment and a screening method thereof, and belongs to the technical field of industrial automatic detection and sorting. The equipment comprises an equipment frame, a feeding module, a visual identification module, a grabbing module, a control module and a material receiving module. The feeding module is used for conveying to-be-screened needle bodies. The visual identification module performs image acquisition and model identification on the needle body; the grabbing module is provided with a plurality of grabbing clamping jaws, can move in the horizontal direction and the vertical direction under the driving of the control module, and grabs a plurality of needle bodies of the same model at the same time at a time. The material receiving module comprises a plurality of material receiving boxes and a transposition driving mechanism for driving the material receiving boxes to move so as to align the target material receiving box to the grabbing module. The equipment disclosed by the invention can be widely applied to high-efficiency sorting of micro-miniature needle bodies with the diameters ranging from 0.3 mm to 3mm and the lengths ranging from 3mm to 77mm, has high precision, high speed and high reliability, and is suitable for large-scale production and multi-variety and small-batch production requirements.

Disclosed is a needle tip structure for a handpiece having an NFC function. The needle tip includes a body mounted at the front end of a handpiece, a first substrate fixed within the body and connected to a plurality of RF supply terminals of the handpiece, a second substrate on which a plurality of micro needles is mounted and movably installed within the body, a holder coupled to a driving shaft of the handpiece through the first substrate and configured to support the second substrate, and a pair of connection pins connected to the second substrate and the first substrate. An NFC chip capable of short-distance wireless communication with an external NFC terminal is installed in the first substrate.

The invention discloses a micro-needle tip annular array cathode electron gun and a preparation method of a cathode thereof, and belongs to the technical field of vacuum electronic devices, the electron gun comprises a cathode, a grid electrode, a double focusing electrode and an anode; specifically, the cathode is of an annular array structure and is divided into two parts by a cone along a symmetry axis, the tangent plane is a bottom surface, the tip end faces inwards, and the cathode is uniformly distributed in a cathode groove, is in a concave surface shape and has a pre-focusing effect; the micro needle tip design of the cathode significantly increases the field enhancement factor, thereby improving the electric field intensity of the tip, improving the emission current density, and reducing the turn-on voltage. The grid is a rhombic grid hole grid mesh, the side length of the rhombus is consistent with the radius of a cathode groove, electric field distribution is optimized by adjusting the acute angle of the rhombus, and the field emission efficiency is remarkably improved; the first focusing electrode is a hyperbolic focusing electrode, the inner wall of the first focusing electrode is in a hyperbolic curve shape, and the focusing effect is enhanced by guiding an electric field line to bend towards the anode along the central axis; the electron gun has high field emission performance and high beam compression ratio.

The utility model relates to the technical field of biological experiment equipment, in particular to an adjustable needle holder which comprises a sliding table, a control mechanism and a clamping mechanism fixed on the sliding table. The clamping mechanism comprises a fixed block fixed to the top of the sliding table, a sliding hole is formed in the fixed block, a sliding block is vertically connected into the sliding hole in a sliding mode, a groove is formed in the sliding block, an elastic piece is fixed into the groove, a ball is arranged above the elastic piece and movably connected with the sliding block, the elastic piece can lock the moving state of the ball, and a connecting rod is fixed to the ball. A clamping ring is fixed at the upper end of the connecting rod; the control mechanism comprises a control rod, an oil groove is formed in the top of the control rod and communicated with the sliding hole through a hose, a plug is fixed to the top of the oil groove, a threaded hole is formed in the center of the plug, a stud is arranged in the threaded hole in a matched mode, and a pressing head is fixed to the bottom of the stud and located in the oil groove. According to the device, the fixing position of the microneedle can be quickly adjusted in multiple directions, and the operation difficulty of experimenters is effectively reduced.

The invention discloses a solder and a packaging structure. The solder comprises: a base material; the repairing capsule is mixed in the base material and internally comprises a repairing material; the microneedle is mixed in the base material, the microneedle is a shape memory alloy, and the microneedle deforms to puncture at least part of the repair capsule, so that the repair material flows out of the punctured repair capsule and fills the space defect of the base material; or / and the melting point of the repairing material is less than the phase transition temperature of the shape memory alloy. The self-repairing of the solder can be realized through the matching of the repairing capsule and the microneedle, so that the solder has longer service life and higher reliability.

The application provides a physiotherapy instrument, the physiotherapy instrument comprises a host, a micro needle head and a protective frame, the host comprises a handle shell and a mounting seat, the mounting seat is fixed at one end of the handle shell, the micro needle head is provided with a bearing part for mounting a micro needle part, and the micro needle part can be fixed on the bearing part. The bearing part protrudes out of the mounting base in the direction away from the handle shell, the protection frame is detachably fixed to the mounting base, the micro needle head is detachably connected with the main machine, and when the micro needle head needs to be detached, the protection frame can be detached from the mounting base firstly, so that the bearing part and the mounting base are both exposed, and then the micro needle head can be detached. The protection frame is prevented from blocking the hand or a tool from getting close to the bearing part, the bearing part protrudes out of the installation base, a user can directly hold the protruding part of the bearing part to apply force so as to detach the micro needle head, and the micro needle head can be installed, fixed or detached more conveniently.

The utility model relates to the technical field of microneedles, and discloses a telescopic structure device of microneedle needles, which comprises a housing and a needle seat, a plurality of needles are arranged on the needle seat, a rotating cylinder is rotatably inserted in the housing, a liquid storage cavity with the same inner diameter as the rotating cylinder is arranged on the needle seat, the liquid storage cavity is inserted in the rotating cylinder, and the rotating cylinder is provided with a liquid outlet. A plug pin is fixedly arranged on the outer wall of the liquid storage cavity, a spiral sliding groove is formed in the barrel wall of the rotary barrel, the plug pin is inserted into the sliding groove, a cover plate is arranged at the top of the rotary barrel, a plurality of positioning tooth grooves are formed in the inner wall of the cover plate in a circumferential array mode, and a positioning assembly used for fixing the position of a needle seat is arranged on the housing. The pillow is telescopic, different pillow lengths can be adjusted, different use requirements are met, meanwhile, the needle head is stored in a contracted mode in the unused state and does not make contact with the outside, and the use safety is higher.

The invention discloses a processing method of a nano microneedle, which relates to the technical field of nano microneedles and comprises the following steps: cleaning the surface of a monocrystalline silicon or gold wafer, coating photoresist on the surface of the monocrystalline silicon or gold wafer, drying, transferring a microneedle array pattern to a photoresist layer through a photoetching process, putting the wafer into a vacuum reaction cavity, introducing reaction gas, and carrying out vacuum reaction on the wafer and the photoresist layer to obtain the nano microneedle. The processing method comprises the following steps: applying radio frequency power to generate plasma, carrying out anisotropic etching on a wafer, forming a microneedle cylinder, removing residual photoresist and cleaning to obtain a microneedle array, applying UV glue to a preset position of a plastic part, mounting the microneedle array to the glue dispensing position of the plastic part, and then carrying out UV irradiation on a mounted product to cure the UV glue. The size, the shape and the position of the microneedle and the nanostructure can be controlled by accurately designing a mask and etching parameters, the size range is from dozens of micrometers to hundreds of micrometers, the shape is from a cylinder to a cone, and the design freedom degree is large.

The utility model discloses a microacupotomy, which relates to the technical field of medical instruments and comprises an acupotomy handle, an acupotomy body and an acupotomy head, a plurality of needle storage cavities are arranged in the acupotomy handle, and needle outlet through holes matched with the needle storage cavities are arranged at the lower end of the acupotomy handle. A limiting piece used for adjusting the knife outlet length of the needle knife body is arranged between the needle tube and the needle knife handle. The holding part, the needle outlet part, the needle tube and the limiting piece are matched with one another, so that the needle knife can be stored, replaced and adjusted in length; clinical use requirements are met, and operation efficiency is improved. The micro-needle knife can effectively solve the problems that an existing micro-needle knife is single in function, and the needle knife cannot be replaced.

The invention provides a high-air-tightness flexible graphite polar plate and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out compression molding on an expanded graphite prefabricated plate to form a graphite blank polar plate; (2) punching a micro needle hole in the graphite blank pole plate by adopting a micro needle; (3) carrying out dipping treatment on the graphite blank polar plate with the micro pinholes obtained in the step (2) in dipping glue to obtain a dipped polar plate; and (4) cleaning, curing, drying and leveling the pole plate impregnated in the step (3) to obtain the high-air-tightness flexible graphite pole plate. According to the method disclosed by the invention, a method for punching the micro holes in the surface of the molded graphite blank polar plate is innovatively adopted, so that a part of pores in the molded graphite blank polar plate are broken. The punched micro holes enable gas in pores existing in the prefabricated plate to be extracted more easily, and the pole plate is filled with the impregnating adhesive more easily, so that the impregnating difficulty of the impregnating adhesive is reduced, and the air permeability is improved.

The invention discloses a fluorescent navigation lacrimal ductule broken end recognition and anastomosis device, and relates to the technical field of ophthalmology medical instruments, the recognition and anastomosis device comprises a microscopic needle holder, one side of the microscopic needle holder is provided with a pair of connecting blocks, one side of the pair of connecting blocks is provided with a detachable connecting mechanism and a detachable matching mechanism, and the other side of the pair of connecting blocks is provided with a fluorescent navigation device. The embedded groove is formed in the lacrimal passage probe, and the fluorescent rod capable of emitting infrared fluorescence is arranged in the groove, so that when the fracture part of the lacrimal ductule needs to be observed, the lacrimal passage probe capable of emitting infrared fluorescence is inserted into the lacrimal ductule, and the position of the fracture end of the lacrimal ductule is judged; the microscopic needle holder is convenient for a follow-up doctor to hold the microscopic needle holder to carry out anastomosis operation on the lacrimal ductule, the broken end can be quickly and accurately aligned and sutured, the success rate of high broken end identification and the operation efficiency are improved, the operation difficulty and excessive dependence on doctor experience are reduced, and the postoperative anastomosis patency rate and the life quality of a patient are improved.

The utility model relates to the technical field of beauty instruments, and discloses a microneedle hair taking device which comprises a handle, a microneedle head and a connecting column, a second partition plate is fixedly arranged on the upper portion of the interior of the handle, a motor is fixedly arranged at the lower end of the second partition plate, and a first gear is fixedly arranged at the output end of the motor. A sleeve is fixedly arranged at the position, close to the middle, of the inner wall of one side of the handle, a rotating rod is rotationally arranged in the sleeve, a second gear is fixedly arranged at the upper end of the rotating rod, a fourth gear is fixedly arranged at the lower end of the rotating rod, a bearing is embedded in the position, close to the middle, of the lower end of the handle, and a needle cylinder is fixedly arranged on the inner wall of an inner ring of the bearing in a sleeving mode. According to the hair taking device, the push needle is arranged and penetrates into the micro needle head, after hair follicles are taken out, the push block can be pushed to enable the push needle to push out tissue blocked in the micro needle tube, use of doctors is facilitated, and working efficiency is improved.

The utility model discloses a thin-layer sample application auxiliary device for drug inspection, and relates to the technical field of drug inspection. The sample application mechanism comprises a lifting disc, a rotating rod is rotationally arranged at the bottom end of the lifting disc, a mounting frame is fixedly arranged at the bottom end of the rotating rod, sample application assemblies distributed in an array mode are mounted on the outer side of the mounting frame, each sample application assembly comprises a micro needle head, each sample application assembly comprises a fixing rod, and a fixing disc is fixedly arranged at the bottom end of each fixing rod; a positioning assembly is installed at the bottom end of the fixing disc, a ball is fixedly arranged at the top end of the fixing rod, and a slope is fixedly arranged at the bottom end of the lifting disc. According to the utility model, the mounting frame, the rotating rod, the plurality of sample application components and other structures are matched with one another, so that automatic switching and accurate positioning of multiple pipes can be realized, a plurality of samples or different solvents can be accurately treated simultaneously, the sample application speed and consistency are greatly improved, the working efficiency is improved, human errors are reduced, and the production cost is reduced. Therefore, the accuracy and the reliability of medicine inspection are ensured.

The high-precision machining technology comprises the following steps that solid raw materials are selected for pretreatment, cutting is conducted after treatment to obtain a micro-needle profile, the micro-needle profile is subjected to accurate grinding, specifically, burrs and uneven positions are removed, the head of the micro-needle profile is ground, and an inclination angle with the axial surface is formed; the method comprises the following steps: polishing an obtained micro-needle profile, preparing a surface coating composition, coating the polished micro-needle profile with the composition, measuring the inclination angle of an inclined surface after coating, trimming the inclination angle, carrying out secondary polishing to obtain a micro-needle head, cleaning and disinfecting the obtained micro-needle head, carrying out quality detection, and packaging and delivering the micro-needle head from a warehouse. Compared with the prior art, the high-precision machining process for the micro needle head for injection has the advantages that operation and use are convenient, and the machining precision is guaranteed.

The present invention relates to the technical field of medical devices, and provides a force-sensing microinstrument, which includes a housing and a drug injection assembly. The housing includes a drug injection needle tube, a first optical fiber, and a second optical fiber; a bent needle tip is provided at the distal end of the drug injection needle tube; the first optical fiber and the second optical fiber are distributed along the length direction of the drug injection needle tube on the outer periphery of the drug injection needle tube and are encapsulated in the housing; the first optical fiber and the second optical fiber are Bragg optical fibers, both are provided with grating regions, and at least one of the two is provided with a plurality of the grating regions at intervals, and the grating regions are used to sense the radial force received by the drug injection needle tube. This force-sensing microinstrument can detect the puncture force of the drug injection needle tube on blood vessels only through two Bragg optical fibers, reducing the outer diameter of the force-sensing micro needle, enabling it to fit a smaller-sized trocar, thereby reducing the damage to the sclera during retinal vein injection operations and reducing the risks of bleeding, hyperplasia of the tissue around the incision, and retinal traction.

The invention provides a hair growing device for caring and growing hair based on exosomes, and relates to the technical field of caring and hair growing, the hair growing device comprises a bearing support, a bearing cylinder frame, a conveying pump body, a bearing joint, a driving sleeve and a bearing support cylinder; a rotating sliding groove is formed in the top of the bearing support. The bearing cylinder frame is fixedly mounted on the inner side of the mounting open groove; the conveying pump body is fixedly mounted at one end of the inner side of the bearing barrel frame; the bearing joint is fixedly mounted at one end of the inner side of the bearing barrel frame; a mounting lantern ring is fixedly arranged at one end of the inner side of the driving sleeve; a mounting support ring is fixedly arranged on the inner side of the bearing support cylinder, and the bearing support cylinder rotationally sleeves the outer side of one end of the bearing cylinder frame through the mounting support ring; after the bearing supporting cylinder is driven by the telescopic supporting rod to move, the micro needle head is pricked into the scalp to perform reciprocating minimally invasive dot matrix treatment on the surface of the head of a user; the problems that exosome maintenance is different from simple coating administration, and a device special for cell exosome hair care and hair growth needs to be designed and prepared are solved.

1. The name of the design product: electric micro needle head (skin pen). 2. The use of the design product: for electric micro needle head. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model provides a medicine film packaging finished product discharging and conveying device and micro needle medicine film automatic packaging equipment, and the medicine film packaging finished product discharging and conveying device comprises a first conveying device, the first conveying device comprises a first rotary conveying belt and a first driving assembly used for driving the first rotary conveying belt to rotate in the first discharging direction, the first driving assembly comprises a first support, the first conveying device further comprises a dividing strip, and one end of the dividing strip is fixedly connected to the first support. The dividing strip extends in the first discharging direction so as to divide the top face of the first rotary conveying belt into a qualified product conveying area and an unqualified product conveying area in the width direction of the first rotary conveying belt. According to the utility model, simultaneous and synchronous conveying of qualified products and unqualified products in medicine film packaging finished products is realized through one rotary conveying belt, automatic blanking is realized, functional combination of the conveying belt is also realized, the requirement on the size of an installation space is reduced, the structural design is simplified, and the manufacturing cost is reduced.

Disclosed is an invasive high-frequency treatment device. The invasive high-frequency treatment device includes multiple micro needles including a first micro needle and a second micro needle, an elevation unit configured to raise the micro needle, and a control circuit configured to control the elevation unit. The control circuit determines a procedure zero point of the elevation unit corresponding to the multiple micro needles in an initialization step of the invasive high-frequency treatment device, and controls the elevation unit to rise at a predetermined height from the procedure zero point in a procedure step of the invasive high-frequency treatment device. Accordingly, it is possible to make consistent the location of the micro needles prior to a procedure regardless of conditions for a design, an assembly, and use.

The invention discloses a method for preparing a twin crystal enhanced coating through meniscus confinement electrodeposition and a product thereof, and relates to the technical field of material science and electrochemistry, the method comprises the following steps: step 1, sequentially carrying out pretreatment and plasma treatment on a silicon wafer; 2, a mixed solution of metal salt and acid is prepared to serve as electrolyte, the electrolyte is transferred into a micro needle tube with a nozzle in a 3D direct-writing printing device, an anode is immersed into the electrolyte in the micro needle tube, the silicon wafer subjected to plasma treatment serves as a cathode, the anode and the cathode are connected with an external power source, direct current is applied to conduct 3D printing, and the 3D printing device is obtained. And the electrolyte forms a meniscus between the nozzle and the plasma-treated silicon wafer, and electro-deposition is carried out on the surface of the plasma-treated silicon wafer to form a twin crystal enhanced coating. The method disclosed by the invention is simple and convenient to operate, does not need to add auxiliaries, can realize accurate control of the size of the twin crystal grains, and improves the mechanical strength under the condition of not sacrificing the conductivity of the substrate.

The invention discloses a microneedle type all-solid-state magnesium ion selective sensor as well as a preparation method and application thereof. The all-solid-state magnesium ion selective sensor comprises a micro-needle and a polyimide tube arranged outside the micro-needle in a sleeving mode, and the tip end of the micro-needle extends out of the polyimide tube by 1-2 mm; a graphene water-based coating layer, a poly (3, 4-ethylenedioxythiophene) / poly (4-styrenesulfonic acid) sodium salt) layer and a Mg < 2 + > sensitive film are sequentially coated at the tip end of the micro needle. The magnesium ion selective sensor disclosed by the invention converts a Mg < 2 + > concentration signal into a potential signal based on a double electric layer theory, has the advantages of high response speed, low detection threshold, stable potential response, long service life, low manufacturing cost, large-scale production potential and the like, and has wide market application potential.

The utility model discloses a miniature roller pin which comprises a handle, one end of the handle is fixedly connected with a roller carrier, two sides of the roller carrier are respectively and rotatably connected with a plug screw in a sleeved mode, the opposite ends of the plug screws are respectively connected with a fixing cover through a thread structure, and the fixing covers are in interference connection with two ends of a roller. The rolling wheel is rotationally arranged in the rolling wheel frame, a plurality of clamping strips are clamped on the peripheral side of the outer wall of the rolling wheel in a sliding mode, a plurality of rolling needles are fixedly connected to one end face of each clamping strip, a positioning groove is formed in the middle of the other end face of each clamping strip in an inward concave mode, and a limiting assembly is clamped in each positioning groove and arranged on the corresponding rolling wheel. The rolling wheel can be integrally taken down by taking down the plug screw, and the fixing covers in interference connection with the two ends of the rolling wheel are taken out respectively, so that the clamping strips can be taken down respectively, the rolling needle can be replaced conveniently, and the requirements of different lengths are met.

The invention provides a mold for manufacturing a microneedle medicine film and a manufacturing method of the microneedle medicine film, the mold comprises a mold body, the mold body is provided with at least one micropore filling area, the mold body corresponding to the micropore filling area is provided with a top surface and a bottom surface, the top surface is provided with a plurality of microneedle holes, and the microneedle holes are communicated with the micropore filling area; the top surface is provided with a plurality of micro needle holes, the micro needle holes extend towards the bottom surface, each micro needle hole comprises a needle seat and a needle point, the needle seats and the needle points are sequentially connected in the extending direction of the micro needle holes, and every two adjacent needle seats form a boundary line on the top surface. According to the invention, the residual of the medicament on the top surface due to the existence of the bearing plane on the top surface can be reduced to the maximum extent, so that the medicament waste degree in the manufacturing process of the micro-needle medicine film is effectively reduced, the medicament with the preset perfusion amount can enter the micro-needle hole to the maximum extent, and the medicament loading capacity and the utilization rate of the medicament are improved.

The application discloses an embedded manifold microchannel LTCC substrate with added micro needle fins, which comprises a top cover layer, a middle microchannel layer, a bottom substrate layer and an external driving assembly. The top cover layer is provided with a radio frequency device unit. The middle microchannel layer is provided with a main path and a bypass manifold microchannel. A plurality of shunt micro needle fins are arranged at the input section of the main path manifold microchannel. A plurality of turbulence micro needle fins are arranged at the bypass manifold microchannel. The bottom substrate layer is provided with an inlet / outlet port. The external driving assembly comprises a controller, a micro tube and a micro pump. During operation, the cooling medium is transmitted through the micro tube, flows through the main path manifold microchannel of the middle microchannel layer, is distributed to the bypass manifold microchannel through the shunt micro needle fins, is fully mixed under the action of the turbulence micro needle fins, carries away the heat generated by the high-power radio frequency device and is transported to the external environment. The application realizes the organic fusion of the LTCC substrate and the heat dissipation technology and strengthens the efficient cooling of the high heat flux density radio frequency device.

The present invention discloses a multi-layer stacked structure for a high-power radio frequency chip with high-efficiency heat dissipation and a preparation method thereof; the structure sequentially includes a base layer structure, a first active device layer, a first metal interconnection layer, a heat dissipation buffer layer, a second active device layer, a second metal interconnection layer, and a top-layer heat dissipation structure from bottom to top; wherein, the heat dissipation buffer layer adopts a microchannel structure filled with a phase change material to achieve active temperature regulation; the top-layer heat dissipation structure adopts a graphene-micro needle array composite design and has a switchable heat dissipation mode; this structure significantly improves the heat dissipation efficiency of the high-power radio frequency chip, improves the device reliability, reduces the influence of the heat dissipation structure on the radio frequency performance, and is applicable to high-frequency high-power application scenarios such as 5G communication.

The utility model discloses a microneedle head and a leading-in microneedle roller device, and relates to the technical field of microneedle treatment, the leading-in microneedle roller device comprises a piercing microneedle, the upper end of the piercing microneedle is fixedly connected with a permanent magnet push block, the leading-in microneedle roller device comprises the microneedle head and further comprises a needle seat center cylinder, a plurality of needle guide cylinders are fixedly connected to the downward position of the outer wall of the needle base center cylinder at equal intervals, needle heads of a plurality of piercing micro needles face downwards and are movably inserted into the needle guide cylinders in a one-to-one correspondence mode, and the upper ends of the piercing micro needles penetrate through the needle base center cylinder and then are fixedly connected with a permanent magnet push block. Electromagnets are fixedly connected to the positions, corresponding to the permanent magnet push blocks, of the inner wall of the needle base center cylinder, the needle guide cylinder is kept vertically and downwards arranged, the electromagnets are powered on and off at a time, one-time needling is rapidly executed, the needling path and the pulling-out path of the needle head of the needling microneedle are the same, the needling wound range of the needling microneedle can be reduced, and the needling efficiency is improved. The healing time of a patient is shortened while the treatment effect is ensured.

The invention discloses an all-solid-state hydrogen ion selective electrode as well as a preparation method and application thereof. The all-solid-state hydrogen ion selective electrode comprises a graphene conducting layer, a solid-state contact layer and a hydrogen ion sensitive film which are sequentially coated at the tip end of a micro needle, and the solid contact layer is a poly (3, 4-ethylenedioxythiophene) / poly (sodium 4-styrenesulfonate) layer. The all-solid-state ion selective electrode is prepared by modifying a multi-layer structure on the surface of a microelectrode. According to specific ions to be detected, the modification layer on the surface of the microelectrode can be selectively adjusted, so that the detection accuracy and stability of the sensor are improved, and rapid detection of the ions is realized. The invention provides a brand new thought for the design and application of the multi-parameter portable integrated sensor.

The application discloses a kind of based on hydrogen combustion and micro needle electrode ignition ultra-high energy density micro engine device and preparation method thereof, belong to micro electro mechanical system and micro energy technology field.The device mainly includes top cylinder shell, bottom cylinder shell, piston, top plug-in unit and bottom plug-in unit.It is in that a pair of opposite micro needle electrode in micro combustion chamber ignites pre-mixed hydrogen / oxygen, generates high-temperature high-pressure gas to push piston to carry out two-stroke reciprocating motion, to convert chemical energy directly into mechanical energy.The device adopts unique combustion chamber flow channel design, combined with the flow divider on piston, effectively optimizes scavenging process, reduces fuel short circuit, improves gas exchange efficiency.

The utility model discloses a single cell separation device based on a single cell sequencing technology, which relates to the technical field of single cell separation devices and comprises an operation table, a first protective cover is mounted on one side of the top of the operation table, and a second protective cover is mounted on the other side of the top of the operation table. According to the utility model, through the arrangement of the microscope, the micromanipulation instrument, the dilution cup and the like, large microorganism individuals extracted by the capillary tube can be separated under the action of the microscope, and a single microorganism cell can be picked by taking a microneedle, a hook, a ring and the like from the drawer under the action of the micromanipulation instrument, so that the purpose of separation is achieved; a solution with microorganisms can be diluted through the dilution cup to prepare small liquid drops, and the liquid drops only containing one cell are observed and separated through a microscope, so that the separation purpose is achieved, and the device is high in functionality and rich in unicellular organism separation means.

The invention discloses a round window membrane puncture state detection method based on a SlowFast algorithm, and relates to the field of medical instruments. The problems that due to the fact that the size of a micro needle of an existing otology surgical robot is extremely small, sensing is difficult in the injection puncture process, and surgical precision is affected are solved. The method comprises the following steps: step 1, realizing position detection of a round window and a microneedle through a target detection module for detecting whether the microneedle is in a round window area or not; if the microneedle is in the round window area, the next step is carried out; if the micro-needle is not in the round window area, position detection of the round window and the micro-needle is continued; 2, recognizing the puncture state of the microneedle through a state recognition module, and determining whether the microneedle is successfully punctured or not through a judgment algorithm; wherein the state recognition module adopts a trained and optimized SlowFast algorithm model to recognize a microneedle puncture state; and the identification of the SlowFast model is filtered through a judgment algorithm. The device is used for detecting the puncture state of the round window membrane.