14 results about "Micro-needle" patented technology

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 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 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 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.

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 belongs to test fixture technical field especially relates to a split type bullet micro needle module and test fixture. The both sides of core needle plate are established with first needle groove group and second needle groove group respectively, the first side edge needle plate and the second side edge needle plate respectively located the both sides of core needle plate, the side of first side edge needle plate is established with the third needle groove group corresponding with first needle groove group, the side of second side edge needle plate is established with the fourth needle groove group corresponding with second needle groove group, the first needle group and the second needle group are formed by a plurality of bullet micro needles, the part of bullet micro needle of first needle group is installed in first needle groove group, and a part is installed in third needle groove group, the part of bullet micro needle of second needle group is installed in second needle groove group, and a part is installed in fourth needle groove group. The utility model discloses a split type needle plate structure, disperses needle groove processing load, promotes needle plate deformation resistance, has the advantages such as convenient processing, high yield, low manufacturing cost.

The utility model relates to the technical field of micro-needle modules, and provides a floating micro-needle module of an FPC, which comprises a fixed base and a movable matching seat, the movable matching seat comprises a micro-needle plate seat body and a lower pressing plate seat body, the micro-needle plate seat body is located between the lower pressing plate seat body and the fixed base, and a plurality of first floating elastic pieces are arranged between the micro-needle plate seat body and the lower pressing plate seat body. A plurality of second floating elastic pieces are arranged between the micro-needle plate seat body and the fixed base, a limiting structure is arranged between the movable matching seat and the fixed base and comprises a plurality of limiting holes and a plurality of limiting columns, the limiting holes are formed in the fixed base, and the limiting columns are fixedly connected with the micro-needle plate seat body and located in the limiting holes in a one-to-one correspondence mode; the longitudinal section of each limiting column is of an isosceles trapezoid structure, and the upper bottom of each limiting column is wider than the lower bottom of the limiting column. According to the technical scheme, the problem that the micro-needle structure on the micro-needle module is easily damaged due to the fact that the micro-needle module shakes in the downward pressing process in the prior art is solved.

The utility model relates to the technical field of micro-needle dies, and discloses a magnetic micro-needle positioning forming die which comprises a lower die, a supporting plate is installed at the top of the lower die, grooves are formed in the two sides of the interior of the supporting plate, an upper die is installed at the top of the supporting plate, and ejection assemblies are fixedly connected to the two ends of the two sides of the supporting plate. The two ends of the two sides of the upper mold are both slidably connected with fixing assemblies. According to the magnetic type microneedle positioning forming die, after production is completed, the fixing assembly can be opened, and the upper die and the supporting plate can automatically move upwards under the action of the ejection assembly, so that a finished product is lifted up from the lower die, and the finished product can be taken out conveniently.

Devices and methods for delivering treatment fluids or particulates such as, stem cells, drugs, Botox and like, to an inner lining of a bladder for treatment of urinary tract disorders, including over-active bladder. A balloon delivery system can include an inflation balloon having a plurality of micro-needles configured to pierce and otherwise puncture an inner bladder wall so as to deliver the treatment fluid to bladder tissue. The treatment fluid can be directly injected into the bladder tissue using the micro needles. Alternatively, the micro needles can be fabricated of bioabsorbable or bioresorbable materials such that the micro needles can remain embedded within the bladder tissue to deliver the treatment fluid or particulate.

The invention provides a micro needle bed and a micro needle table, and relates to the technical field of chip testing. The micro needle seat comprises a first sliding mechanism, a second sliding mechanism and a third sliding mechanism, the first sliding mechanism comprises a first sliding seat, a first sliding plate, a first driving part and a second driving part, the first driving part is linked with the first sliding plate, external force drives the second driving part to move in the third direction, and then the first sliding plate is driven by the first driving part to move in the first direction; the second sliding mechanism comprises a second sliding seat, a second sliding plate, a third driving part and a fourth driving part, the third driving part is linked with the second sliding plate, external force drives the fourth driving part to move in the third direction, and then the third driving part drives the second sliding plate to move in the second direction; the fixed end of the third sliding mechanism is fixedly connected with the second sliding plate, and the output end of the third sliding mechanism reciprocates in the third direction and is used for being connected with a probe. The size of the micro needle seat is small, and the space required for installation is small.

The invention is suitable for the technical field of blood vessel anastomosis, and provides a microneedle fixing medical microvessel anastomat which is used for anastomosis of a blood vessel A and a blood vessel B. The microneedle fixing medical microvessel anastomat comprises an anastomosis ring, the inner wall of one end of the anastomosis ring is arranged to be a guide inclined face, a fixing microneedle is arranged on the outer wall of the anastomosis ring, and a guide microneedle is arranged on the guide inclined face. The traction end of the blood vessel A penetrates through the anastomosis ring and is turned outwards to be arranged outside the anastomosis ring in a sleeving mode, the traction end of the blood vessel B is arranged outside the blood vessel A in a sleeving mode, the fixing micro needle penetrates into the blood vessel A and the blood vessel B, and the guiding micro needle penetrates into the blood vessel A. The device solves the problems that the anastomosis difficulty is increased and the blood supply patency rate of the blood vessel after anastomosis cannot meet the requirement due to retraction and collapse generated in the microvessel anastomosis process, and achieves the effects of avoiding retraction and collapse of the microvessel after anastomosis due to the elasticity of the microvessel and improving the blood supply patency rate.