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31results about How to "Limit depth" patented technology
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Detachable implantation instrument and operation method thereof
ActiveCN113558828AImprove operational convenience and safetyImprove accuracyHeart valvesPhysicsEngineering
Owner:SHANGHAI HUIHE MEDICAL CO LTD +1
Double-headed scalpel with protective covers
InactiveCN104146746AAvoid security issuesLimit depthIncision instrumentsEngineeringMechanical engineering
The invention relates to a double-headed scalpel with protective covers. The double-headed scalpel comprises a handle, a first blade, a second blade and two protective covers, wherein the first blade and the second blade are arranged at the two ends of the handle respectively, and each protective cover comprises a pin rod, a first protective piece, a second protective piece, a first elastic piece and a second elastic piece. Pin holes are formed in the scalpel back, and the pin rods are positioned in the pin holes and are in tight contact and match with the pin holes. The inner ends of the first elastic pieces and the inner ends of the second elastic pieces are connected with the upper portions of the pin rods respectively, the upper portions of the first protective pieces and the upper portions of the second protective pieces are connected with the outer ends of the first elastic pieces and the outer ends of the second elastic pieces respectively, and the lower ends of the first protective pieces and the lower ends of the second protective pieces are provided with blunt portions facing cutting edges. By means of the two blades, demands for cutting various tissues are met, and delay of operations is avoided. The protective covers protect the cutting edges, so that the safety of the double-headed cutting edges is ensured. The blunt portions at the lower ends of the first protective pieces and the lower ends of the second protective pieces form blocking surfaces to limit the feeding depth of the scalpel, so that the operations are more accurate, patients' pain is alleviated, and the double-headed scalpel is safer and more reliable.
Owner:THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIV MEDICAL COLLEGE
Stabbing-preventing insulin needle
A stabbing-preventing insulin syringe needle comprises a connecting block, a guide rod and a first sleeve, a conical hole is formed in the top end of the connecting block; a through hole is formed inthe bottom of the conical hole, a needle head is fixedly connected to the inner wall of the through hole, the outer surface of the needle head is sleeved with a guide rod, the top of the guide rod isfixedly connected to the bottom of the connecting block, first sliding blocks are fixedly connected to the outer surfaces of the left end and the right end of the guide rod respectively, and a supporting plate is fixedly connected to the bottom of the guide rod. According to the stabbing-preventing insulin syringe needle, the guide rod, the first sleeve and the first spring are arranged; the needle head sleeves the inner walls of the first sleeve and the guide rod; the needle head is prevented from being exposed and stabbing a user or a patient when not used, and the needle head can be prevented from being polluted by the external environment; the safety coefficient is high, the depth of the needle penetrating into the skin of a patient is limited, the pain of the patient is relieved, thefirst spring rebounds after injection is completed, the needle is automatically pulled out, operation is easy, and the labor intensity of medical staff is relieved.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
Wavelength tunable exposure machine alignment system and alignment method thereof
The invention provides a wavelength tunable exposure machine alignment system and method. The alignment system includes: a light source component, wherein the light source component comprises a firstwavelength tunable laser and a second wavelength tunable laser, and a wavelength signal controller controls the first wavelength tunable laser, wherein the first wavelength tunable laser and the second wavelength tunable laser can provide lasers with tunable wavelengths. The wavelength signal controller controls the first wavelength tunable laser and the second wavelength tunable laser to emit laser with specified wavebands. . A light source used for pattern alignment can be selected or optimized by adjusting the wavelength of the light source, so that better or more stable product overlay performance is obtained; in addition, a remediation scheme can be provided to deal with the situation of abnormal alignment patterns caused by unstable process.
Owner:CHANGXIN MEMORY TECH INC
Scalpel with limiting protection function
InactiveCN104146747AControl depthRelieve painIncision instrumentsIndustrial engineeringScalpel handle
The invention relates to a scalpel with a limiting protection function. The scalpel comprises a scalpel handle, a blade, a bottom plate, a support, a rotating shaft and at least one lifting mechanism. The blade is mounted at the lower end of the scalpel handle, the support is mounted on the bottom plate, and a notch is formed in the upper end of the support; the upper end of the scalpel handle is rotatably mounted in the notch through the rotating shaft, the blade extends to the position below the bottom plate from the edge of the bottom plate, the lifting mechanism is mounted on the bottom plate, and a power output end of the lifting mechanism is connected with the middle-lower portion of the scalpel handle. The bottom plate, the support and the lifting mechanism are provided, the bottom plate is used as a supporting face and a reference plane of the scalpel, and the lifting mechanism is used for adjusting the exposing size of the blade below the bottom plate, so that the scalpel feeding depth is limited, the condition that the scalpel is fed to shallow or too deep is avoided, an operation is more precise, pain of patients is reduced, and the scalpel is safer and more reliable; in addition, the lifting mechanism is used for adjusting the exposing size of the blade anytime, and the scalpel feeding depth is adjusted anytime according to requirements of operations.
Owner:THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIV MEDICAL COLLEGE
Mortise and tenon joint type thoracic and lumbar intervertebral fixator
PendingCN107157627ALimit depthImprove stabilityInternal osteosythesisSpinal implantsIntervertebral spacesRetainer
The invention relates to a mortise and tenon joint type thoracic and lumbar intervertebral fixator. The fixator comprises an intervertebral fixator portion which is used for inserting in the intervertebral space of a thoracic vertebra or a lumbar vertebra; and a vertical wing-like part which is fixedly connected to one end of the intervertebral fixator portion; the vertical wing-like part comprises a connecting part and a tenon, wherein the connecting part is used for fixedly connecting to the intervertebral fixator portion and the connecting part extends along the length of the spine of a human body to extend to the two sides of the body of the intervertebral fixator portion respectively. Compared with thoracic and lumbar intervertebral fixing devices in the prior art, the device is suitable for intervertebral fusion fixation of lesion segments in thoracic anterior decompression surgery and lumbar posterior decompression surgery; an upper and lower vertebral bodies are extruded to the intervertebral fixator portion by the mortise and tenon joint fixation between the tenon of the vertical wing-like part and the upper and lower vertebral slots so that a firm and stable integral body is formed by the upper and lower vertebral bodies and the intervertebral fixator portion, which has good stability and reliability and can limit the depth of the fixator and prevent the fixator from backing off and provide favorable conditions for the final fusion.
Owner:JINAN UNIVERSITY
Acupuncture needle pushing device
The invention discloses an acupuncture needle pushing device which comprises a device body, a shell, electric telescopic rods, a barrier, a positioning hole, a limit plate, a fixing assembly, a needledischarge outlet, a fixing disc, a knob, buckles, support legs, first movable rods, a connecting tip, second movable rods, fixing seats, a laser positioning head, a handle, a switch, a rechargeable lithium battery, a needle feed inlet and grooves. The shell is arranged on the outer side of the device body, the support legs are connected with two sides of the shell, the electric telescopic rods are mounted on one side of the inside of the shell, the laser positioning head is mounted on the other side of the inside of the shell, the rechargeable lithium battery is embedded in an end of the laser positioning head, the connecting tip is arranged on the side, which is close the limit plate, of an end of the device body, and the handle is connected with the bottom of the device body. The acupuncture needle pushing device has the advantages that the acupuncture needle pushing device is provided with fixable devices and has precision positioning and needle pushing depth control functions, andaccordingly the use safety and the usability can be enhanced.
Owner:FUJIAN JINZHUAN INTPROP SERVICES CO LTD
Touch panel, pressure touch device and electronic equipment
PendingCN114779960AGuaranteed detection accuracyReduce thicknessInput/output processes for data processingTouch SensesTouchpad
The invention provides a touchpad and an electronic device. The touchpad and the electronic device have excellent structural performance. The touchpad comprises a circuit board, the upper surface of the circuit board is provided with a touch electrode layer, and the circuit board is used for sensing the touch position of a finger when the finger touches or presses the touchpad and outputting a corresponding touch sensing signal; the support is arranged below the circuit board and comprises a main body part and four extension parts extending from four corners of the main body part to the direction away from the main body part, and cantilever beams are arranged at the tail ends of the extension parts; the pressure sensor is arranged between the circuit board and the bracket, is positioned on the cantilever beam and is used for generating deformation when a pressing force generated when a finger touches or presses the touch panel is transmitted to the cantilever beam and outputting a corresponding pressure sensing signal; and the touch controller is mounted and fixed on the circuit board, is electrically connected with the touch electrode layer and the pressure sensor, and is used for determining the touch position of a finger on the touchpad and the pressing force of the finger according to the touch sensing signal and the pressure sensing signal.
Owner:SHENZHEN GOODIX TECH CO LTD
Quick conductive paste filling device based on electrode cap
PendingCN110559090AImprove work efficiencyAccurate data recordingSurgeryDiagnostic recording/measuringBiomedical engineeringData recording
The present invention discloses a quick conductive paste filling device based on an electrode cap. The device comprises a plurality of flexible elastic belts and a plurality of suction injection ballsarranged on the elastic belts, and when the elastic belts are bent to have the same radian as the electrode cap, and the suction injection balls on the elastic belts are correspondingly inserted intoelectrode cavities in the electrode cap one by one. The plurality of the suction injection balls are arranged on the plurality of the flexible elastic belts, distribution of the suction injection balls on the whole filling device is consistent with distribution of electrodes on the electrode cap to be injected, as the elastic belts have certain elasticity, certain elastic belts can be bent to beattached to the electrode cap, suction ports of the plurality of the suction injection balls are inserted into the cavities of the electrode cap, by manually pressing the injection balls, conductive paste filling of the plurality of the electrode cavities is completed at one time, whole filling time can be shortened to 5 minutes, working efficiency is greatly improved, and data recording of brainelectrical activities is more accurate.
Owner:INST OF PSYCHOLOGY CHINESE ACADEMY OF SCI
Real-time monitoring device for ecological restoration of water environment
PendingCN113640483AEasy accessHigh precisionWithdrawing sample devicesTesting waterAssayWater source
The invention discloses a real-time monitoring device for ecological restoration of a water environment, and belongs to the technical field of water environment monitoring. The real-time monitoring device for ecological restoration of the water environment comprises a base; a water inlet is formed in the right wall of a shaft groove, internal threads are formed in the inner wall of the open end of a collecting bottle, a gear B is arranged in front of a gear A, the lower end of the gear B is coaxially and fixedly connected with a shaft center B, and the lower end of the shaft center B penetrates through the bottom face of a cavity, extends into a water taking cavity and is coaxially and fixedly connected with a worm; and a rod groove is formed in the bottom surface of a sampling box corresponding to the worm, a circular groove is formed in the right side of the rod groove, a worm gear is rotationally connected into the circular groove through a fixing shaft, a groove is formed in the upper end of the right side of the circumferential outer wall of the worm gear, and a plurality of arc-shaped scraping plates are fixedly arranged in the groove at equal intervals. The device can achieve the effect of collecting river bottom sediments while sampling a deep water source at a fixed depth, can further improve the monitoring precision of a worker on the water environment ecology by testing river bottom sediments, and is high in practicability.
Owner:佟士明
Steel lined anti-corrosion pipeline
InactiveCN108071894AExtended service lifeEasy to connect throughPipe elementsCoatingsEngineeringAnti-corrosion
The invention relates to a steel lined anti-corrosion pipeline. The steel lined anti-corrosion pipeline includes more than two inner pipelines provided with anti-corrosion layers on the inner surfaces. The inner pipelines are externally provided with steel lined outer pipelines. The steel lined outer pipelines are externally provided with the anti-corrosion layers. A connecting pipe is connected between each two adjacent inner pipelines. The inner walls of the inner pipelines are provided with limiting channels for penetrating and inserting of the connecting pipes. The tail ends of the limiting channels are provided with limiting steps. A fixing ring covering the connecting pipe is arranged between each two adjacent inner pipelines. The fixing ring is provided with interlocking locking supporting frames. The steel lined anti-corrosion pipeline has the advantages that the inner pipelines are internally provided with the limiting channels and the limiting steps, the penetrating and inserting connecting of the connecting pipes are facilitated, a limiting effect is played to depth of the penetrating and inserting, and fixing is convenient; and fixing rings cover the exterior of the connecting pipes, bare corrosion of the connecting pipes is avoided, and the service life of the pipeline is prolonged.
Owner:泰州市瑞隆防腐设备厂
Electric planer and wood planing method thereof
ActiveCN113442234ALimit depthAvoid destructionHand planesBark-zones/chip/dust/waste removalHand heldStructural engineering
The invention discloses an electric planer and a wood planing method of the electric planer, and relates to the technical field of handheld electric planers. The problem that a bamboo structure is damaged is solved. The electric planer comprises a base, a shell is fixedly installed at the top of the base, a top cover is fixedly installed at the top of the shell, and a guide assembly is arranged at the bottom of the base and comprises two rectangular sliding blocks. The method comprises the steps that first, according to the wood planing requirement, the one-way wood planing depth is controlled through an adjusting bolt, the device is started, wood planing is tried for the first time, movement resistance is sensed, a single-hand operation mode or a double-hand operation mode is selected according to the sensed movement resistance, an empty collecting bag sleeves an internal thread ring through an elastic band, then wood planing work can be conducted, and the collecting bag is taken down when being full. Even if a guide cutting board is inserted into a bamboo gluing or thermocompression bonding boundary, the embedding depth of the guide cutting board is limited, and then the bamboo structure can be prevented from being damaged under the guide effect.
Owner:ZHENGYANG IND & INVESTMENT CO LTD
Gun sight
ActiveCN112414206APrevent leakageAvoid the problem of positional biasMuzzle attachmentLaunching weaponsMechanical engineeringSight
A gun sight comprises a gun sight tube body, a connection part, an elastic expansion film and an inflation opening. The gun sight tube body is used for observing a target. The connection part is connected with the gun sight tube body and is used for fixing the gun sight tube body to a gun body. The connection part is a sealed tubular cavity, and multiple openings are uniformly formed in the connection part in the circumferential direction. The elastic expansion film is arranged in the connection part in an attached mode. When the inner cavity of the connection part is in an inflated state, theelastic expansion film protrudes out of the positions of the openings, and therefore the elastic expansion film abuts against the inner cavity wall of an inserting groove in the gun body. The inflation opening is formed in the connection part and communicates with the inner cavity of the connection part. A one-way valve is arranged on the inflation opening and is used for making external gas enter the inner cavity of the connection part and preventing gas in the inner cavity of the connection part from leaking. By means of the structure, the technical problem that in the prior art, when the gun sight is inserted and fixed to a gun, the gun sight shakes relative to the gun, and consequently the cannonball shooting accuracy is reduced is solved.
Owner:北京天创凯睿科技有限公司
Auxiliary anchorage nail implanting device and using method thereof
The invention discloses an anchorage nail auxiliary implanting device and a using method thereof.The implanting device comprises a positioning guide plate, an implanting guide plate and a depth limiting clamping ring, the positioning guide plate 1 is used for assisting a doctor in drilling a pre-drilled hole, the implanting guide plate 2 is used for limiting the implanting angle of an anchorage nail, and the depth limiting clamping ring 5 is used for limiting the implanting depth of the anchorage nail. The gingival soft tissue information and the tooth hard tissue information are combined, so that the soft tissue fitting degree of the anchorage nail guide plate is increased; the position of the pre-drilled hole is determined through the positioning guide plate and the pre-drilled hole, so that the risks of slipping and breaking of the anchorage nail are reduced, and the accuracy of the implantation site of the anchorage nail is improved; the implanting angle of the anchorage nail is limited through the guide pipe on the implanting guide plate, so that the risk of damaging the tooth root due to the deviation of the implanting angle is reduced, and the safety of the implanting process of the anchorage nail is improved; by means of the depth limiting clamping ring, the implanting depth of the anchorage nail is limited, precise implanting of the double-layer cortical bone of the anchorage nail can be achieved, and the stability of the implanted anchorage nail is improved.
Owner:SOUTHERN MEDICAL UNIVERSITY
Embedded plant drug injection device
InactiveCN110786174BEvenly attachedUniform attachment strengthHorticulture methodsBiotechnologyDrug injection
Owner:贵州省烟草公司黔南州公司
Spinning rotor for an open-end spinning machine having a friction-enhancing lining made of an elastomeric material, and open-end spinning machine
InactiveCN109072494AIncrease coefficient of frictionHeavy loadContinuous wound-up machinesOpen-end spinning machinesElastomerMechanical engineering
Owner:RIETER INGOLSTADT GMBH
Lockable quick-fit sealing structure for small diameter tubular structure
The invention discloses a lockable quick-installation sealing structure for a small-diameter tubular structure. The sealing structure is used for static sealing of the pipe seat at the connection point between the connecting pipe and the pressure vessel or pressure pipeline. The sealing structure includes a separating half ring , a sealing ring, and a hollow bolt; there are at least two separate half-rings, and an annular groove is provided on the side where the connecting pipe goes deep into the socket; the hollow bolt is provided with a through hole for the connecting pipe to pass through, and the axis of the through hole It is collinear with the axis of the hollow bolt, and the through hole and the connecting pipe are in a clearance fit relationship; the sealing ring is sleeved on the connecting pipe, and the sealing ring is located between the hollow bolt and the separation half ring. When the hollow bolt penetrates into the pipe seat, The sealing ring can be squeezed and deformed. The sealing structure has the advantages of simple structure, convenient installation, high sealing reliability and easy popularization.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
Device and method for testing diffusion performance of oil-gas components in pore medium
ActiveCN102879303BImprove measurement accuracyEnables Static Diffusion Properties MeasurementsSurface/boundary effectDiffusionEngineering
The invention provides a device and a method for testing diffusion performance of oil-gas components in a pore medium. The testing device comprises a communicating valve, wherein the communicating valve is clamped between testing cores in a core clamping device; the testing cores are arranged on two sides of the communicating valve; the communicating area of the communicating valve is more than or equal to 1 / 2 of the cross sectional area of the testing cores; fluid can be respectively injected into the testing cores which are positioned on the two sides of the communicating valve through the clamping device; and the testing cores positioned on the two sides of the communicating valve are controlled to be communicated with or separated from each other through the communicating valve. Because the communicating valve is arranged between the two testing cores, the initial diffusion moment of the components can be strictly controlled, and the measurement accuracy is improved; static diffusion property measurement under pore medium conditions can be realized; and moreover, the reaction can be stopped and other fluid involved testing research can be carried out according to the design under control of the valve.
Owner:PETROCHINA CO LTD
Hand-held deep-loosening weeding machine
PendingCN109906693ASuitable for useRealize subsoiling and plowingSpadesPloughsHydraulic cylinderAgricultural engineering
The invention discloses a hand-held deep-loosening weeding machine, belongs to agricultural machinery, and aims to provide the agricultural machinery which is suitable for being used in cultivated land in mountain areas, has functions of soil plough and weeding, and can adjust a deep-loosening angle and depth. The weeding machine comprises a walking power machine, a weeding mechanism and a deep loosening mechanism, wherein the weeding mechanism and the deep loosening mechanism are connected with the walking power machine; the weeding mechanism is composed of a knife rest (9) fixed on two sidesof a gear box (11), a rotating shaft (9-3) supported on two knife rests (9), a driving chain wheel (9-1) fixed on an output shaft of the gear box (11), a driven chain wheel (9-4) and a weeding hob (8) fixed on the rotating shaft (9-3), and a chain (9-2) for connecting the driving chain wheel (9-1) and the driven chain wheel (9-4); and the deep loosening mechanism is composed of a deep loosening plough (10) connected with the gear box (11) in a hinge mode and a hydraulic cylinder (6) which is connected with the gear box (11) and the deep loosening plough (10) in the hinge mode. The hand-held deep-loosening weeding machine has the advantages of being simple in structure, convenient to use, high in efficiency, and suitable for being used in the cultivated land in the mountain areas.
Owner:GUIZHOU INST OF MOUNTAIN AGRI MACHINERY
A precision cutting device and cutting method for construction joints of fair-faced concrete walls
ActiveCN111673915BLimit depthPrecise cuttingWorking accessoriesStone-like material working toolsIndustrial engineeringSupport plane
Owner:北京城建一建设发展有限公司
A limit sleeve ring saw
Owner:王力平
A maxillary osteotomy positioner with adjustable thickness
InactiveCN106725715BProtect blood vesselsNerve protectionBone drill guidesNasal cavityTension compression
The invention discloses an adjustable-thickness maxillary osteotomy positioner and belongs to the technical field of medical equipment for plastic surgery; the adjustable-thickness maxillary osteotomy positioner comprises a nasal retainer, a buccal retainer, a buccal mucosal tension-compression plate, a handle and at least three guide plates. The nasal retainer and the buccal retainer are joined at the tail ends to form the handle, the buccal mucosal tension-compression plate is connected to the front end of the buccal retainer, the buccal retainer is provided with a slot for mounting the guide plates, two ends of each guide plate are provided with through holes, two ends of the slot are provided with a guide plate limiting post and a guide plate adjusting screw respectively which run through the guide plates along the through holes, and the guide plates are arranged along the width of the slot sequentially in parallel. The problems of poor osteotomy thickness precision and unparalleled cut planes in existing maxillary osteotomy are avoided; since the guide plates of the positioner may be adjusted up and down in the slot along its with, the positioner may adapt to the cut-off under different bone thicknesses during maxillary osteotomy.
Owner:AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
Pull limiting system for knee joint revision
PendingCN114795383AAchieve stabilityAchieve precisionBone drill guidesPhysical medicine and rehabilitationIntramedullary rod
The invention discloses a beating and pulling limiting system for knee joint revision. The beating and pulling limiting system comprises a beating and pulling device. The instrument is located on one side of the beating and pulling device and connected with the beating and pulling device; the limiter is connected with the beating and pulling device and is used for limiting the beating and pulling depth of the beating and pulling device; wherein the limiting stopper comprises a limiting stopper body, and the limiting stopper body is in sliding connection with the beating and pulling device; the button is located on one side of the limiting stopper body and rotationally connected with the limiting stopper body, and lock teeth are arranged at one end of the button and correspond to a plurality of teeth arranged on the striking and pulling device; one end of the elastic body abuts against the limiting stopper body, and the other end of the elastic body abuts against the button. According to the punching and pulling limiting system, the osteotomy action on the thighbone side is combined with the hole filing action, the operation of an intramedullary rod is replaced with the punching and pulling device, the osteotomy amount is determined with the hole filing depth as the reference, and the technical effects that the number of operation steps is reduced, the operation reference is unified, and the osteotomy precision is improved can be achieved.
Owner:天衍医疗器材有限公司
A double-ended scalpel with a protective sheath
InactiveCN104146746BAvoid security issuesLimit depthIncision instrumentsMechanical engineeringEngineering
The invention relates to a double-headed scalpel with protective covers. The double-headed scalpel comprises a handle, a first blade, a second blade and two protective covers, wherein the first blade and the second blade are arranged at the two ends of the handle respectively, and each protective cover comprises a pin rod, a first protective piece, a second protective piece, a first elastic piece and a second elastic piece. Pin holes are formed in the scalpel back, and the pin rods are positioned in the pin holes and are in tight contact and match with the pin holes. The inner ends of the first elastic pieces and the inner ends of the second elastic pieces are connected with the upper portions of the pin rods respectively, the upper portions of the first protective pieces and the upper portions of the second protective pieces are connected with the outer ends of the first elastic pieces and the outer ends of the second elastic pieces respectively, and the lower ends of the first protective pieces and the lower ends of the second protective pieces are provided with blunt portions facing cutting edges. By means of the two blades, demands for cutting various tissues are met, and delay of operations is avoided. The protective covers protect the cutting edges, so that the safety of the double-headed cutting edges is ensured. The blunt portions at the lower ends of the first protective pieces and the lower ends of the second protective pieces form blocking surfaces to limit the feeding depth of the scalpel, so that the operations are more accurate, patients' pain is alleviated, and the double-headed scalpel is safer and more reliable.
Owner:THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIV MEDICAL COLLEGE
Mortise and tenon type cervical vertebra intervertebral fixer
PendingCN107252372AGood stability and reliabilityLimit depthSpinal implantsVertebraBiomedical engineering
The invention relates to the field of medical instruments and in particular relates to a mortise and tenon type cervical vertebra intervertebral fixer including an intervertebral fixer body part inserted into a gap of the cervical vertebral, and a vertical wing-shaped component rotationally connected to one end of the intervertebral fixer body part. The vertical wing-shaped component is formed by a bearing and tenon heads, wherein the bearing is in a spacing and rotary connection with the intervertebral fixer body part; and the bearing extends the tenon heads from toward two sides of the intervertebral fixer body part along a length direction of a cervical vertebra. Compared with the cervical vertebra intervertebral fixer device in the prior art, the mortise and tenon type cervical vertebra intervertebral fixer is suitable for intervertebral fusion and fixation of a lesion segment in a cervical vertebra anterior decompression surgery; the upper and lower vertebral bodies can be squeezed toward the intervertebral fixer body part via fixation between the tenon heads of the vertical wing-shaped component and the mortise and tenon between upper and lower vertebral body bone slots, so a firm and stable integral body can be formed by the upper and lower vertebral bodies and the intervertebral fixer; great stability and firmness can be achieved; the fixer depth can be limited and retraction of the fixer can be prevented; and a favorable condition is provided for final fusion.
Owner:JINAN UNIVERSITY
A scalpel with limit protection
The invention relates to a scalpel with a limiting protection function. The scalpel comprises a scalpel handle, a blade, a bottom plate, a support, a rotating shaft and at least one lifting mechanism. The blade is mounted at the lower end of the scalpel handle, the support is mounted on the bottom plate, and a notch is formed in the upper end of the support; the upper end of the scalpel handle is rotatably mounted in the notch through the rotating shaft, the blade extends to the position below the bottom plate from the edge of the bottom plate, the lifting mechanism is mounted on the bottom plate, and a power output end of the lifting mechanism is connected with the middle-lower portion of the scalpel handle. The bottom plate, the support and the lifting mechanism are provided, the bottom plate is used as a supporting face and a reference plane of the scalpel, and the lifting mechanism is used for adjusting the exposing size of the blade below the bottom plate, so that the scalpel feeding depth is limited, the condition that the scalpel is fed to shallow or too deep is avoided, an operation is more precise, pain of patients is reduced, and the scalpel is safer and more reliable; in addition, the lifting mechanism is used for adjusting the exposing size of the blade anytime, and the scalpel feeding depth is adjusted anytime according to requirements of operations.
Owner:THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIV MEDICAL COLLEGE
Convenient-to-use milk injector for neonatology department
InactiveCN114869780AConvenient automatic deliveryAvoid fast jet streamsFeeding-tubesFull Term NeonateNursing care
The invention provides a neonatology department milk injector convenient to use, and relates to the technical field of infant nursing, the neonatology department milk injector comprises a shell channel, the front end of the shell channel is fixedly provided with a passing bin; an air channel is integrally formed in the bottom of the inner side of the shell channel, and the middle of the air channel is of an L-shaped structure which is bent backwards. The driven shaft is rotationally arranged at the top of the air channel; according to the pressurizing barrel of each embodiment of the invention, a pre-pressurizing function is provided, the sliding pipe is pulled outwards, external air penetrates through the one-way valve B to enter the pressurizing barrel, pressure is generated through the cooperation of the piston piece and the reset of the spring, air pressure is provided, and the pressurizing effect is improved. And the scales can be used for quantifying, so that the problems that the limiting effect of the milk injector used at present is insufficient, and the pre-pressurization speed-controllable injection function is lacked are solved.
Owner:暴保龙
Special tool for assembling circuit breaker contact
PendingCN114783831ALimit depthEasy to useEmergency protective device manufactureEngineeringCircuit breaker
The invention provides a special tool for assembling a circuit breaker contact, which comprises a sleeving piece, a through hole corresponding to a contact process hole is formed in the sleeving piece, the special tool further comprises a plug pin mounted on the sleeving piece, the plug pin is provided with a locking end which penetrates through the through hole and is inserted into the process hole, and a stop structure is arranged on the outer surface of the plug pin. The depth of the bolt inserted into the process hole is limited; the special tool further comprises an elastic piece arranged outside the plug pin, the plug pin is provided with an unlocking station and a locking station, the unlocking station enables the elastic piece to be stressed and deformed when the plug pin is pulled out, the locking end retreats to the position where the sleeving piece can be arranged outside the contact in a sleeving mode or the sleeving piece can be disengaged from the contact, and the locking station enables the locking end to be inserted into the auxiliary hole under the reset acting force of the elastic piece. Mounting or dismounting of the sleeving piece can be achieved by pulling out the plug pin, the locking end can be inserted into the contact auxiliary hole by loosening the plug pin, use is very convenient, the assembling efficiency can be improved, meanwhile, the plug pin is arranged on the sleeving piece, the plug pin can be prevented from being lost, and assembling work can be conveniently carried out.
Owner:HENAN PINGGAO ELECTRIC +1
A gun mirror and coating method thereof
ActiveCN112414206BPrevent leakageAvoid the problem of positional biasMuzzle attachmentLaunching weaponsEngineeringMechanical engineering
Owner:北京天创凯睿科技有限公司
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