30results about How to "Improve piercing efficiency" patented technology

The invention discloses an ultrasonic puncture guiding system and method, and the system comprises an ultrasonic diagnosis probe which is used for obtaining a corresponding ultrasonic image according to an ultrasonic diagnosis excitation signal; the puncture needle is used for receiving an ultrasonic signal excited by the ultrasonic diagnosis probe when the ultrasonic diagnosis probe obtains the ultrasonic image and transmitting the ultrasonic signal to the signal receiving unit; the signal receiving and processing unit is used for receiving an ultrasonic signal transmitted by a receiving type ultrasonic transducer on the puncture needle and an ultrasonic diagnosis excitation signal of an ultrasonic diagnosis unit, so that a voltage amplitude signal and signal delay are obtained, and the position and the movement tendency of the needle point of the puncture needle are obtained; and the ultrasonic diagnosis unit is used for presenting the position and the movement tendency of the needle point of the puncture needle on an ultrasonic image. The invention solves the adverse influence of the puncture angle and the puncture tangent surface of the puncture needle on ultrasonic guided puncture, improves the guide effect under the conditions of large angle and tangent surface deviation of the puncture needle, reduces the operation difficulty of doctors, reduces the learning cost and improves the puncture efficiency.

The invention discloses a CT (Computed Tomography) guided needle biopsy method based on a recursive deformable non-rigid registration network. The CT guided needle biopsy method comprises the following steps: S1, collecting and enhancing a training data set; s2, training a recursive deformable non-rigid pyramid registration network; s3, training a target tissue segmentation network; s4, deploying a registration network and preparing the network before the operation; and S5, performing real-time registration in the operation. By means of the highlight display technology for the target tissue in the target focus, whether the taken tissue is the target tissue of the preoperative plan or not can be helped to be confirmed after an operation, so that the success rate and efficiency of puncture are improved, and unnecessary secondary biopsy is reduced.

The present application provides a kind of puncture needle positioning guide device, including four translation modules;Under the action of the former stage translation module, the latter stage translation module can move along corresponding direction;First support rod assembly is assembled on the third translation module, and the first support rod assembly includes first support rod and the first connecting assembly that is detachably connected with the first support rod, when being in the connection state, the first connecting assembly can rotate relative to the first support rod;Second support rod assembly is assembled on the fourth translation module, and the second support rod assembly includes second support rod and the second connecting assembly that is detachably connected with the second support rod, when being in the connection state, the second connecting assembly can rotate relative to the second support rod;Positioning guide assembly is detachably assembled at the first and second connecting assemblies, for positioning and guiding puncture needle, and the positioning guide assembly includes steel ball used in cooperation with navigation system.The above-mentioned device can be used in cooperation with navigation system to realize accurate positioning and guiding of puncture needle.

The utility model provides an ultrasound-guided positioning blood vessel puncture device and a blood vessel puncture system, the ultrasound-guided positioning blood vessel puncture device comprises an ultrasound probe and a positioner, and the ultrasound probe comprises a mounting surface; the positioner comprises a mounting position and a puncture channel penetrating through the positioner body; wherein the positioner is detachably connected with the mounting surface through the mounting position, and a guide line parallel to a detection track is arranged on the surface of the ultrasonic probe. Further, through real-time cooperation of the ultrasonic probe and the positioner, blood vessel puncture for the patient is efficiently completed.

The present invention relates to the field of liquid bag puncture technology, and in particular to an automatic liquid bag puncture machine. It comprises a base, a rotating mechanism is provided on the base, a rotating frame is provided on the rotating end of the rotating mechanism, four automatic liquid bag clamping mechanisms are provided at the lower part of the rotating frame, and the four automatic liquid bag clamping mechanisms are evenly distributed along the circumferential direction, and four automatic puncture needle clamping mechanisms are provided at the upper part of the rotating frame, and the four automatic puncture needle clamping mechanisms are arranged one by one directly above the four automatic liquid bag clamping mechanisms; a lifting mechanism is provided between the automatic liquid bag clamping mechanism and the automatic puncture needle clamping mechanism, and the lifting end of the lifting mechanism is connected to the automatic puncture needle clamping mechanism. The present invention can automatically realize the puncture connection between the sterilized liquid bag and the puncture needle assembly, improve the puncture efficiency, and avoid the occurrence of finger pricking by manual operation.

The utility model provides a PU (Poly Urethane) foaming wheel puncture experiment device, which relates to the field of PU foaming wheel performance and comprises a supporting mechanism, and a guide rail mechanism is fixedly connected to the top end surface of the supporting mechanism. According to the existing puncture test device, when a puncture tool is manually held by hand for puncturing, the efficiency is low, the puncture part of a foaming wheel is easily torn due to the fact that the puncture tool needs to be manually pulled out after puncturing is completed, and the test result is influenced. The vertical movement of the puncture assembly is controlled by the servo push rod, automation of the puncture process is achieved, compared with a traditional mode of manually holding a puncture tool, the structure improves the puncture efficiency, damage to the foaming wheel caused by manual pulling and inserting is avoided through the automatic reset function of the servo push rod, and the reliability of an experimental result is ensured.

The utility model relates to the technical field of rubber tire forming production, and discloses a tire blank surface puncturing device which comprises a workbench, the side face of the workbench is fixedly connected with a collecting groove, the two sides of the top of the inner wall of the workbench are rotationally connected with a licker-in and a pressing wheel respectively, and one end of a middle shaft of the licker-in penetrates through the workbench and is connected with a first motor. A toothed plate assembly is slidably connected to the bottom of the mounting strip, gears are connected to the bottom of the toothed plate assembly in a meshed mode, a connecting shaft is fixedly connected between the two gears, one end of the connecting shaft penetrates through the workbench and is connected with a second motor, a sliding groove is formed in the surface of the mounting strip, and a U-shaped rod is slidably connected to the inner side of the sliding groove. By using the moving block, the inclined groove and the fixed shaft, the U-shaped rod drives the moving block and the roller to move front and back and up and down, so that the device can be used for automatically blanking a tire blank, the problem that the tire blank is inconvenient to load and unload is solved, and the efficiency of puncturing the tire blank surface is improved.

This application provides an electrode structure and an electrode device. The electrode structure includes: a sleeve comprising a first rigid segment, a flexible transition segment, and a second rigid segment connected sequentially along the axial direction, wherein the flexural modulus of the first rigid segment and the second rigid segment is greater than that of the flexible transition segment; at least one electrode contact disposed on the outer peripheral wall and / or inner peripheral wall of the distal end of the first rigid segment, for acquiring information about the target biological tissue and / or regulating the target biological tissue; at least one first connecting contact point electrically connected to the electrode contact; and an electrode connector having a connecting channel connected to the second rigid segment, wherein a second connecting contact point matching the first connecting contact point is disposed within the connecting channel, and the electrode contact is electrically connected to the electrode connector via the first connecting contact point and the second connecting contact point; the connecting channel, the first rigid segment, the flexible transition segment, and the second rigid segment form a continuous cavity penetrating the electrode structure, allowing interventional instruments to be inserted and providing a guiding and positioning function.

The utility model provides a peripheral vessel puncture assisting device, and relates to the technical field of medical equipment, the peripheral vessel puncture assisting device comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are rotatably connected, the first fixing plate and the second fixing plate are each provided with a limiting piece, and the limiting pieces are used for limiting joints of a patient; and an ultrasonic probe is arranged on the first fixing plate. The peripheral vessel puncture device has the effect of improving the peripheral vessel puncture efficiency.

A radial artery puncture frame convenient to operate comprises a supporting frame body, a puncture table and a stool. The supporting frame body comprises a movable base and a height-adjustable supporting rod. The puncture table comprises a table plate fixedly connected with the supporting rod, an inclined face support located on the top face of the table plate and adjustable in inclination height and restraining assemblies located on the left side edge and the right side edge of the inclined face support and used for binding the palm of a patient. The design of the inclined plane support with the adjustable inclined height is adopted, and the inclined plane support is adjusted through the driving piece, so that the inclined height between the first inclined panel and the second inclined panel of the inclined plane support is adjusted in a liftable mode in the mode that the inclined plane support drives the rear side of the first inclined panel to jack upwards; according to the radial artery puncture frame, the purpose that arterial pulsation at the puncture position of the arm of a patient is fully exposed is achieved, the success rate of radial artery puncture is greatly increased, the radial artery puncture frame is complete and perfect in function, and medical staff can complete radial artery puncture work more efficiently, more professionally, more conveniently and more normatively.

The utility model discloses an edible fungus bag punching device which comprises a box body, two symmetrical sliding plates are arranged on the top of the box body, two pairs of symmetrical sliding grooves are formed in the top of the box body, two symmetrical sliding frames are arranged on the top of an inner cavity of the box body, the bottoms of the sliding plates penetrate through the sliding grooves and are welded to the sliding frames, and the sliding plates are arranged on the sliding frames. Two symmetrical threaded rods are rotationally connected to an inner cavity of the box body, and first bevel gears are fixedly connected to the surfaces of the threaded rods. A fungus bag is placed between the two limiting plates, a motor is started, a rotating rod drives a rotating shaft to rotate through a third bevel gear and a second bevel gear, the rotating shaft drives a threaded rod to rotate through the third bevel gear and a first bevel gear, and through limiting of sliding grooves, two sliding plates drive hole pricking rods to slide oppositely; therefore, the purposes that the hole pricking structure can prick holes in the fungus bags, the situation that a user needs to prick holes in the two sides of the fungus bags in sequence is avoided, and the fungus bag pricking efficiency is improved are achieved.

This invention provides an upper limb positioning device for interventional cardiology procedures, belonging to the field of medical device technology. It includes a forearm support plate, a wrist support plate fixedly connected to one side of the forearm support plate, and a back-of-hand support plate fixedly connected to the side of the wrist support plate away from the forearm support plate. The forearm support plate, wrist support plate, and back-of-hand support plate together constitute a support and positioning mechanism for supporting and limiting the patient's upper limb. By setting up this support and positioning mechanism, this invention can provide wrap-around support and positioning for the patient's upper limb, effectively improving the fit and overall stability between the patient's upper limb and the support and positioning mechanism. This avoids unconscious rotation or lifting of the patient's upper limb during the procedure, eliminating problems such as needle displacement and vascular tearing, and effectively improving the overall safety of interventional cardiology procedures.

The utility model discloses a robot used for blood vessel puncture, which comprises an equipment box provided with a display mechanism, a puncture control mechanism and a puncture device used for blood vessel automatic identification, positioning and puncture. Wherein the puncture device is respectively connected with the display mechanism and the puncture control mechanism, the puncture device comprises an ultrasonic fixing shell, an ultrasonic probe and a puncture needle are installed on the ultrasonic fixing shell, the angle of the puncture needle can be adjusted, the puncture needle can move horizontally, and a puncture guider and a puncture force sensor are arranged on the puncture needle; the puncture control mechanism is used for controlling the puncture device to rotate and receiving position information and force sensing information fed back by the puncture device. By arranging the puncture control mechanism and the puncture device used for automatically recognizing, positioning and puncturing the blood vessel, automatic recognition, positioning and measurement of the puncture target blood vessel and automatic puncture of the blood vessel are achieved, medical workers are assisted in completing puncture of the vein blood vessel, and the operation requirement and workload of the medical workers are reduced.

The coaxial puncture needle with the side hole drainage function comprises a metal needle sheath and a metal needle core coaxially arranged in the metal needle sheath in a penetrating mode, and further comprises a drainage assembly arranged on the metal needle sheath in a sleeving mode. The metal needle sheath comprises a hollow tube body and a needle sheath needle seat arranged at the tail end of the hollow tube body, and at least one drainage side hole is formed in the side wall of the hollow tube body; the drainage assembly comprises a drainage main pipe arranged on the outer side of the drainage side hole in a sleeving mode and a drainage side pipe communicated with the drainage main pipe. One end of the drainage side tube is correspondingly communicated with the drainage side hole of the metal needle sheath, and the other end of the drainage side tube is communicated with the drainage bottle. Compared with the prior art, the coaxial puncture needle can avoid blood accumulation and blockage of the needle sheath caused by bleeding during repeated puncture biopsy, and can also avoid the problem of blood drop splashing caused by repeated puncture of the puncture needle.

The utility model discloses a puncture needle, relates to the technical field of embryo transplantation, and aims to solve the problem that embryo transplantation cannot be realized when the genital tract of a patient is abnormal by a transplantation tube in the related technology. The puncture needle is used for embryo transplantation and comprises a needle tube, and the needle tube is a rigid tube; the first end face of one end of the needle tube in the length direction is obliquely arranged relative to the axis of the needle tube to form a needle tip, and the needle tip is used for entering a life body; a first included angle between the first end face and the axis of the needle tube is 15-20 degrees.

The present invention relates to the field of medical equipment technology, and in particular to an ultrasonic inspection device. The ultrasonic inspection device includes a mounting shell, an ultrasonic transducer, and a puncture frame. The ultrasonic transducer is rotatably arranged in the inner cavity of the mounting shell, and the ultrasonic transducer and the mounting shell are spaced apart; the puncture frame is arranged on the outer side of the mounting shell, and a puncture guide hole for the puncture needle to pass through is provided on the puncture frame, and the puncture frame can rotate synchronously with the ultrasonic transducer so that the axis of the puncture guide hole is coplanar with the real-time scanning plane of the ultrasonic transducer. In the ultrasonic inspection device provided by the present invention, the puncture frame rotates synchronously with the ultrasonic transducer to ensure that the puncture path is always within the real-time scanning plane of the ultrasonic transducer, providing precise positioning for the puncture operation, improving the puncture efficiency and accuracy, reducing the operation time, reducing the difficulty of the operation, and realizing accurate, low-traumatic, simple and fast surgical treatment.

The application relates to a clamping jaw device, which comprises a first driving structure; the first transmission structure comprises a first transmission gear assembly and a first transmission shaft; a lifting piece is sleeved on the first transmission shaft and can move along the axial direction of the first transmission shaft under the rotation action of the first transmission shaft; a guide assembly comprises a first guide piece and a second guide piece; the first guide piece is connected to the lifting piece and synchronously lifts with the lifting piece; under the lifting action of the first guide piece, at least two second guide pieces are gathered or dispersed along the radial direction of the first transmission shaft; the at least two second guide pieces are gathered or dispersed so that a clamping piece clamps or releases an internal fixation needle. The clamping jaw device provided by the application can replace the manual grabbing of the internal fixation needle by a doctor, thereby relieving the hand fatigue of the doctor; through the feedback of the electric driving structure, the clamping force of the clamping piece on the internal fixation needle and whether the internal fixation needle has the clamping deviation phenomenon can be judged, thereby improving the puncture effect and puncture efficiency.

The present application relates to an electric rotary puncture instrument, comprising: a puncture outer rod; a catheter outer rod, which is telescopically mounted inside the puncture outer rod; a catheter, which passes through the catheter outer rod and is fixed; a handle housing, which is movably mounted on the puncture outer rod, and an electric rotation control device is fixedly mounted inside the handle housing; an inner needle, which passes through the catheter and is connected to the electric rotation control device, and the inner needle extends and retracts from the catheter as the handle housing moves, and is rotated by the electric rotation control device. In addition, the present invention also relates to an ultrasonic endoscope including the electric rotary puncture instrument. The rotary puncture of the present invention performs rotary cutting of tissues through the needle tip, and the puncture efficiency is higher. The electric power source used in the present invention can be set to a constant torque, and the power output is stable. Compared with manual rotary puncture, the puncture and rotation of the present invention are two forces, and there is no interference between them, which can reduce the risk of puncture caused by excessive force.

The present application relates to a computer device and system for implementing puncture guidance. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program: determining a safe treatment area that encloses the lesion area of ​​the target object; determining the puncture target in the safe treatment area; constructing a three-dimensional image based on the contour of the lesion area, the safe treatment area and the target object; registering the ultrasound image acquired in real time with the three-dimensional image to obtain the registered three-dimensional image; in response to the rotation operation of the ultrasound probe, updating the cross-sectional image, mapping points and the imaging area of ​​the sagittal plane in real time in the first display area according to the rotation operation; when any target mapping point is located in the imaging area of ​​the sagittal plane in the cross-sectional image, the relative position of the target mapping point located in the imaging area of ​​the sagittal plane in the sagittal plane image is displayed in the second display area. In this way, the accuracy of puncture guidance is improved.

The invention discloses a lung nodule puncture positioning device, and belongs to the technical field of lung nodule puncture, the lung nodule puncture positioning device comprises a base plate, the inner side of the base plate is sleeved with a puncture needle and a spiral cutting biopsy needle; an outer sleeve is movably connected to the center of the inner side of the base plate through a concave spherical shell, an inner sleeve is slidably connected to the inner side of the outer sleeve, a depth adjusting assembly and an angle adjusting assembly are arranged at the top end of the base plate, and a bottom cover and a cleaning cotton ball are arranged at the bottom of the outer sleeve. According to the lung nodule puncture positioning device, through cooperation of the angle adjusting assembly and the depth adjusting assembly, the puncture positions of the puncture needle and the spiral cutting biopsy needle are accurately controlled, the puncture efficiency is improved, and the pain degree of a patient is relieved; meanwhile, the bottom cover and the cleaning cotton ball are arranged at the bottom of the outer sleeve, so that when the inner sleeve is pulled out, residual blood tissues and the like on the surface of the needle tube can be wiped off through contact friction between the puncture needle and the cleaning cotton ball, and the inner wall of the outer sleeve is prevented from being scratched.

The invention discloses a puncture instrument, belongs to the field of orthopedics, and aims to simplify the positioning puncture problem of the puncture instrument. The puncture instrument comprises a puncture tube body, and a plurality of positioning sawteeth are arranged on the periphery of the edge of the working end, used for puncture, of the puncture tube body. By the adoption of the instrument, during puncture, the positioning sawteeth at the tail end of the puncture tube body make contact with the bone or the human tissue, the positioning sawteeth can go deep into the bone or the human tissue, the puncture tube body is positioned through the positioning sawteeth, and then corresponding puncture operation is conducted through the puncture needle. The scheme can be used for hollow screw implantation, pedicle screw implantation, disease taking examination, centrum forming and the like, puncture operation based on the orthopedics department is feasible, and the existing puncture principle is thoroughly changed. By means of the method, auxiliary positioning can be achieved, deflection, displacement and other conditions can be reduced, the puncture efficiency is improved, and the method has important practical value for improving the operation efficiency, shortening the operation time and reducing postoperative infection.

The utility model provides a drag reduction type ultrasonic puncture needle capable of quickly determining the position of a needle tip, which comprises an outer needle and a needle core movably arranged in the outer needle in a penetrating manner, a reinforced air cavity is arranged at the position of a needle head of the outer needle, a spiral line is arranged on the inner cavity wall of the reinforced air cavity, and a plurality of tiny air holes are formed in the outer cavity wall. According to the utility model, the positioning of the puncture needle is more accurate, and the puncture needle is prevented from injuring nerves or accidentally injuring surrounding organs due to inaccurate positioning; the novel puncture needle can effectively reduce the force when the puncture needle is inserted into a human body, improves the convenience of an operator and the accuracy of an operation, relieves the pain of a patient, accelerates the efficiency of the operation, and is convenient for administration or body fluid drainage and suction due to the notch formed in the tip of the needle core; the efficiency of dosing or body fluid drainage and suction is further improved, so that the efficiency of the whole puncture is higher.

The embodiment of the invention provides a device for breaking and removing seed coats of hard seeds, and relates to the technical field of plant seed treatment.The device for breaking and removing the seed coats of the hard seeds comprises a seed containing plate, a support and a needle threading assembly, and a plurality of containing grooves used for containing the seeds are formed in the seed containing plate; the needle threading assembly is arranged above the seed placing plate and comprises a needle placing bed, an adjusting plate, a telescopic piece set and a fixing piece, the needle placing bed and the adjusting plate are both arranged on the support in a sliding mode, a plurality of puncture needles are arranged on a bottom plate of the needle placing bed, a plurality of needle holes allowing the puncture needles to penetrate through are formed in the adjusting plate, and the puncture needles correspond to the placing grooves; the telescopic piece group is arranged between the needle placing bed and the adjusting plate and is used for adjusting the distance between the needle placing bed and the adjusting plate; the fixing part is arranged on the telescopic part set and used for fixing the relative position of the needle placing bed and the adjusting plate. According to the device for breaking the seed coats of the hard seeds, the seeds with the seed coats of different thicknesses can be subjected to coat breaking treatment, the seeds are not prone to being damaged, and the germination efficiency of the seeds is improved.

The present application relates to jujube processing technology field, specifically to a kind of jujube processing device, fixed with slide bar piece in mounting bracket, bearing frame is slidably installed on the slide bar piece;The present application also proposes a kind of jujube processing method, comprising the following steps: after jujube body is placed into bearing frame, jujube body falls in the upper end side of horizontal plate piece.This application can realize automatic operation, it is convenient to adjust according to the actual specification of jujube body, while effectively making reverse shaft and driving shaft piece reverse operation, can fully make jujube body can realize flat conveying, avoid the situation of accumulation conveying due to jujube material more, it can also effectively clamp jujube body and ensure its smooth movement, by the cooperation of corresponding components, jujube is cut and jujube kernel is pressed out, it is convenient to place walnut kernel into jujube in subsequent operation.

The utility model provides a kind of double-arm puncture positioning mechanism and puncture robot, wherein double-arm puncture positioning mechanism includes: two parallel interval settings linear motion unit, two movement swing arms, probe angle adjusting unit, probe, puncture angle adjusting unit and puncture execution unit;Wherein, linear motion unit is used to adjust the position of movement swing arm in first direction;One movement swing arm is used to adjust the position of probe angle adjusting unit in second direction and third direction;Another movement swing arm is used to adjust the position of puncture angle adjusting unit in second direction and third direction;Probe angle adjusting unit is connected with probe and is used to adjust the deflection angle of probe;Puncture angle adjusting unit is used to adjust the pitch angle and deflection angle of puncture execution unit.By adopting the above technical scheme, the adjustment accuracy and flexibility of the puncture robot are improved.

The nerve block puncture needle auxiliary device comprises a machine body and a placement groove, the placement groove is formed in the machine body, mounting plates are symmetrically mounted on the top of the machine body through screws, and the nerve block puncture needle auxiliary device further comprises adjusting rods rotationally mounted on the inner sides of the tops of the two mounting plates; the outer end of the adjusting rod penetrates and extends to the outer side of the left end mounting plate, and the inner side of the adjusting rod is connected with a sleeve. The nerve block puncture needle auxiliary device based on artificial intelligence is provided with the placement plates, the placement groove is formed in the inner side of the bottom of the machine body, and then the arc-shaped placement plates are rotationally installed on the two sides of the bottom of the machine body through extrusion rods; the arm of a patient only needs to be placed on the placing plate arranged on the inner side of the bottom of the machine body through the placing groove, then the comfort of the arm of the patient can be improved through the placing pad attached to the surface of the placing plate, and the puncture efficiency of the puncture needle auxiliary device is improved.

The utility model belongs to the technical field of medical apparatus and instruments and provides infantile scalp vein pricking restraint protection device, including head fixed soft pillow and the restraint soft envelope of detachable connection on head fixed soft pillow, the top of head fixed soft pillow is equipped with C concave groove, the inside left and right sides of C concave groove are equipped with the ear department of adjustable avoidance groove, the left and right sides and top of restraint soft envelope are equipped with restraint system, and are equipped with dynamic pressure monitoring alarm mechanism on restraint system. The utility model discloses through head fixed soft pillow and restraint soft envelope linkage design, form " head - body - limb " integration restraint, can effectively limit infantile head movement in three -dimensional direction and the shaking of the limbs, solved the problem of traditional restraint mode head fixed unstable.

The invention discloses a human body fixing device suitable for lumbar puncture of children, comprising: a bed body on which a mounting surface is formed; the chest constraining device is arranged on the mounting surface, the chest constraining device comprises a first constraining surface and a first constraining belt, and the first constraining belt constrains the chest part of the human body on the first constraining surface; the waist guiding assembly is a guiding plate, the guiding plate is used for being attached to the waist of the human body, and a guiding through hole is formed in the guiding plate; the leg binding device is rotationally connected with the mounting surface, the leg binding device comprises a second binding surface and a second binding belt, the second binding belt binds the legs of the human body to the second binding surface, and the upper body and the lower body of the human body are bound by arranging the chest binding device and the leg binding device; the upper arm and the front arm of the patient can be fixed together in a binding mode of the binding belt, so that the mobility of the patient is greatly reduced, and the binding effect is improved.

The invention provides an infusion port auxiliary set, which relates to the technical field of medical instruments and comprises a marking device used for identifying and positioning the position of a subcutaneous infusion port of a patient and performing seal marking on the position, corresponding to the center of the infusion port, on the surface skin of the patient. The marking device comprises a circular base, a seal body movably penetrating through the center of the base and an infrared recognition assembly used for recognizing whether the base and an infusion port are concentrically distributed or not, and the butterfly wing needle can be rapidly aligned and inserted into the infusion port through seal marking of the seal body on the surface skin of a patient. The fixing device is used for fixing the butterfly wing needle on the surface skin of a patient at a proper puncture depth and comprises a base, an adhesive layer arranged on the bottom surface of the base and a positioning assembly arranged on the top surface of the base and used for regulating and controlling the puncture depth of the butterfly wing needle and fixing the butterfly wing needle; a through hole for puncturing the butterfly wing needle is formed in the center of the base. The puncture success rate of the butterfly wing needle can be increased.