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Extrusion die for copper bar production
The utility model discloses an extrusion die for copper bar production, which belongs to the technical field of extrusion dies and is characterized in that one end of an extrusion die body is fixedly connected with a mounting plate, the surface of the mounting plate is provided with mounting holes which are annularly distributed at equal intervals, one end of the extrusion die body is provided with a die hole, and one end of the die hole is provided with a working tape; according to the extrusion die for copper bar production, a flow guide nozzle can be additionally arranged at the discharging end of the extrusion die body through the connecting part arranged on the extrusion die body, and the stroke of a working belt is increased through a flow guide hole, so that the copper bar subjected to extrusion molding cannot be bent and wavy; and the flow guide coating is arranged on the inner wall of the die hole, the flow guide coating is a DLC coating, the hardness of the inner wall of the die hole can be greatly improved, meanwhile, the friction coefficient of the inner wall of the die hole is extremely low, deformation, abrasion and metal filing remaining of the die hole are avoided, and then the surface of the copper rod is prevented from being scratched and bruised.
Owner:YINGTAN AIRIDI NEW MATERIAL CO LTD
A flat wire bending mechanism
Owner:苏州迪旭自动化科技有限公司
A telescoping cardiac pacing electrode
ActiveCN121102717BEliminate shiftingEliminate risk of breakageInternal electrodesExternal electrodesRat heartSubcutaneous tissue
The present application relates to the technical field of cardiac pacing electrode, in particular to a telescopic cardiac pacing electrode, which comprises a pulse pacemaker and an electrode lead, the electrode lead comprises an insertion end, a connecting sleeve, a conductive core wire and an electrode end, the insertion end, the connecting sleeve and the electrode end are sequentially fixedly connected, the insertion end is insertedly matched with the pulse pacemaker, the connecting sleeve is internally provided with the conductive core wire, the two ends of the conductive core wire are respectively connected with the insertion end and the electrode end, and the pulse pacemaker generates a pulse electric signal which is transmitted to the inside of an organ through the electrode end; in the present application, the telescopic members and the fixing members are staggered in the subcutaneous section, the initial length is the shortest, the spacing of the fixing members anchored in the subcutaneous tissue is increased with the growth of the patient's trunk, the telescopic members are axially stretched, the length adjustment range covers the entire growth period from childhood to adulthood, the risk of electrode lead tightness, electrode displacement or breakage is fundamentally eliminated, and secondary surgery is avoided.
Owner:中国人民解放军联勤保障部队第九〇四医院
Windproof iron wedge for port portal crane
The utility model relates to a windproof iron wedge technical field, concretely is a kind of wharf portal crane windproof iron wedge, including iron wedge body, the inside of iron wedge body is equipped with through-hole, the left and right sides of iron wedge body side are all clamped with clamping plate, the top of clamping plate is fixedly connected with fixed frame, the inside of clamping plate is equipped with insertion hole, the inside of insertion hole is inserted with plug shaft, the one end of plug shaft is equipped with slot, the side of clamping plate close to slot is equipped with sliding slot.The utility model has the advantages of: when using, after pulling plate is pulled to right, again, plug shaft is penetrated clamping plate and iron wedge body, when plug shaft is penetrated clamping plate, spring after hand release can be pushed to left with plug plate and complete reset, and the plug plate after reset is inserted into the slot of plug shaft, the fixation of plug shaft can be quickly completed, reach the purpose of being convenient for installation and disassembly plug shaft;The setting of positioning rod can avoid bending when spring compression, can assist spring more stable contraction and unfolding.
Owner:JIANGSU GOODWILL HEAVY IND TECHNOLOGY CO LTD
An intra-needle puncture device for ultrasound visualization enhanced minimally invasive lumbar puncture
ActiveCN224387510UImprove stability and safety performanceEasy to embedOrgan movement/changes detectionSurgical needlesUltrasound imagingNeedle puncture
The utility model discloses a kind of needle-in-needle puncture devices for ultrasound imaging enhanced minimally invasive lumbar puncture, the needle-in-needle puncture device includes guide needle, lumbar puncture needle and lumbar puncture auxiliary needle;The guide needle tube is hollow structure;The outer surface of one end of the guide needle tube is equipped with the first coating area of enhanced ultrasound imaging;The lumbar puncture needle includes lumbar puncture needle tube, and the lumbar puncture needle tube is located in the guide needle tube;The inside of the lumbar puncture needle tube is hollow structure;The outer surface of one end of the lumbar puncture needle tube is equipped with the second coating area of enhanced ultrasound imaging;The lumbar puncture auxiliary needle includes needle core, and the needle core is located in the lumbar puncture needle tube, and the needle core structure is compatible with the lumbar puncture needle tube structure.Compared with prior art, the needle-in-needle puncture device for ultrasound imaging enhanced minimally invasive lumbar puncture of the utility model improves the visual effect and operation accuracy under ultrasound guidance in puncture process.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
Wire core stabilizing guide wheel of wrapping head for producing cable
ActiveCN224263859Uadjustable positionWinding flatCable/conductor manufactureScrew threadElectric cables
The utility model discloses a wire core stabilizing guide wheel of a wrapping head for cable production, and belongs to the technical field of wire and cable production auxiliary equipment. Comprising an end cap, a connecting column, a seat ring and a guide wheel, an inner cavity with a left opening is formed in the end cap, threads are arranged on the side wall of the inner cavity, threading holes are formed in the end face center of the end cap and the center of the seat ring, threaded blind holes are formed in the right end face of the end cap and the left end face of the seat ring, and threaded heads are arranged at the two ends of the connecting column. Threaded heads at the two ends of the connecting column are connected with threaded blind holes in the end cap and the seat ring respectively, a strip-shaped hole is formed in the seat ring, and a guide wheel shaft at the left end of the guide wheel is assembled in the strip-shaped hole through a nut. The utility model can be conveniently added to the existing concentric lapping head; the position of the guide wheel is adjustable, so that the device is suitable for wrapping wire cores with different wire diameters; the radial force applied by the wrapping tape to the wire core can be completely balanced, the wire core is not bent, and the wrapping tape is wound flatly; and wire core twisting and core jumping caused by unstable pay-off tension can be effectively avoided.
Owner:BAIYIN NONFERROUS CHANGTONG WIRE & CABLE CO LTD +1
Compact shuttle plunger cylinder
The utility model relates to a plunger cylinder technical field, especially a compact plunger cylinder of back and forth action, including cylinder body, plunger rod and guide sleeve, the head end of cylinder body is covered in guide sleeve, plunger rod is located in the cylinder body, and plunger rod stretches out from the guide hole of guide sleeve, its characterized by: still including piston rod, the tail end of plunger rod in cylinder body has piston hole, and the piston end of piston rod inserts piston hole, and the inner chamber of piston hole is divided into rod cavity and rodless cavity by the piston of piston end, and the opening of piston hole is covered with cylinder cover, and one piston oil cylinder is formed on plunger rod, and the rod end of piston rod is connected with the bottom end of cylinder body. The utility model has the beneficial effects that: through inlaying piston oil cylinder in plunger cylinder, the self-limiting and back and forth action of plunger cylinder are realized while not increasing the volume of plunger rod, and moreover, plunger cylinder and piston oil cylinder can work simultaneously, and plunger cylinder will not cause the decrease of thrust because of inner chamber piston oil cylinder.
Owner:GLUAL HYDRAULIC SYST CHANGZHOU
Photoelectrochemical sensing microneedles, their preparation methods, monitoring systems, and detection methods
ActiveCN121845575BReliable electrochemical response consistencyget rid of dependenceSurgical adhesivesInorganic non-active ingredientsHeterojunctionEngineering
This application relates to the field of biomedical sensing and wearable health monitoring technology, and discloses a photoelectrochemical sensing microneedle and its preparation method, monitoring system, and detection method. The sensing microneedle comprises a swellable dual-network hydrogel microneedle matrix, a three-dimensional conductive network composed of high aspect ratio metal nanowires with localized surface plasmon resonance effect, and a semiconductor nanostructure composited on the surface of the metal nanowires to form a Schottky heterojunction. The mechanical constraint of the rigid polymer framework and the high aspect ratio of the metal nanowires synergistically ensure the continuity of the conductive network in the swelled state. Under excitation light irradiation, hot electrons migrate through the built-in electric field of the Schottky junction to the semiconductor surface to generate reactive oxygen free radicals. These free radicals then non-enzymatically catalyze the oxidation of target analytes in the interstitial fluid under zero or low bias voltage, generating a photocurrent signal, thus integrating minimally invasive sampling with in-situ highly selective detection.
Owner:EAST CHINA NORMAL UNIV
Intelligent irrigation catheter device
The utility model relates to medical instrument technical field provides a kind of intelligent flushing catheter device. Device includes catheter main body, heating device and anti-pulling device. Heating device adjusts the temperature of physiological saline in real time through intelligent temperature control module, keeps flushing liquid constant temperature, avoids patient to cause discomfort due to low temperature liquid. Anti-pulling device is composed of chute, slider, spring and sensor group, can buffer external force and pull, protect catheter from bending or damaging. Sensor group real-time monitoring external force and slider displacement, intelligent feedback system can trigger alarm and remote notify medical staff when abnormal situation. Catheter main body surface is equipped with support device, prevent bedding compression, ensure catheter unobstructed. The device has constant temperature heating, anti-external force and intelligent monitoring function, applicable to a variety of medical scenarios, significantly improve patient safety and operation convenience, with wide application prospect.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 32235