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35results about How to "Avoid depth" patented technology

Noninvasive standard registration device applicable to fusion imaging in ultrasonography, CT (computed tomography), MRI (magnetic resonance imaging), PET (positron emission tomography) and the like

ActiveCN102824216AControl non-standardCompensation level errorDiagnosticsSurgeryComputed tomographyNon invasive
The invention provides a noninvasive standard registration device applicable to fusion imaging in ultrasonography, CT (computed tomography), MRI (magnetic resonance imaging), PET (positron emission tomography) and the like. The noninvasive standard registration device comprises a carrier bag, a body surface fixator and at least one frame in geometric plane shapes. The carrier bag is rectangular and is fully filled with liquid. The geometric plane shaped frame is disposed in the carrier bag and is constantly perpendicular to the horizontal plane. Spacing more than 0.1cm is reserved between the geometric plane shaped frame and the inner wall of the carrier bag. By the noninvasive standard registration device, the geometric plane shaped frame in the ultrasonic images can be kept in the same standard cross-section direction as the corresponding geometric plane shaped frames in CT, MRI or other imaging methods, and non-regularity of universality and cross section of an ultrasonic probe are controlled. The speed in fusion registration of ultrasonography, CT, MRI or PET images can be greatly increased by using the noninvasive standard registration device while precision registration is guaranteed, and the noninvasive standard registration device is widely applicable and has broad application prospect.
Owner:周翔

Dewatering well pump drainage automatic control system

The invention discloses a dewatering well pump drainage automatic control system and relates to the technical field of building construction. The key points of the technical scheme are as follows: thedewatering well pump drainage automatic control system comprises a plurality of single well dewatering well control systems, a regional dewatering well centralized sub-control system and a dewateringmaster control system, wherein the single well dewatering well control systems are used for carrying out dewatering operation, monitoring the underground water level elevation, water level decreasingamplitude and the water yield of the dewatering well; the regional dewatering well centralized sub-control system is used for controlling the single well dewatering well control systems and receivingthe signals monitored by the single well dewatering well control systems; the dewatering master control system is used for receiving and analyzing signals of the underground water level elevation, water level decreasing amplitude and the water yield of all dewatering wells, and displaying the underground water level elevation, water level decreasing amplitude and the water yield of each dewatering well on the site; and the dewatering master control system controls to start or stop the dewatering operation of the single well dewatering well control systems according to the analyzing result. The dewatering well pump drainage automatic control system avoids the situation that a foundation pit is insufficient in dewatering and drainage depth and dewatering of the foundation fit is not in time.
Owner:武汉武建机械施工有限公司

Manufacturing method of parts of optical gratings of DFB laser

The invention provides a manufacturing method of parts of optical gratings of a DFB laser. The method comprises following steps of successively growing an N-type InP buffering layer, a multi-quantum well structure, a P-type InP layer, an InGaAsP optical grating layer and an InP optical grating layer on an N-type phosphatization indium substrate by use of the metallic organic chemical vapor deposition method; uniformly coating the surface of an epitaxial wafer with photoresist, shielding parts of the optical gratings through a photolithography mask, carrying out exposure under a photoetching machine and carrying out holographic exposure and development so as to form optical grating regions and non-optical grating regions; using the photoresist to serve as protection layers and corroding theInP optical grating layer in the optical grating layer by use of reactive ion etch technology; and using selective corrosion liquid for InGaAsP to corrode the InGaAsP optical grating layer and allowing the liquid to stand and corrode for 1-2 minutes under the indoor temperature. According to the invention, by using the photoresist to serve as protection layers and by use of the reactive ion etchtechnology and the selectivie wet etching, parts of optical gratings with the consistent depth are formed; and the method is suitable for batch manufacturing of DFB lasers.
Owner:WUHAN GUANGANLUN OPTOELECTRONICS TECH CO LTD

Combined knife blade type terrain-self-adaptation furrowing machine

The invention discloses a combined knife blade type terrain-self-adaptation furrowing machine, which comprises a frame, a furrowing mechanism, a terrain detecting device and a depth limiting and regulating device, wherein the furrowing mechanism, the terrain detecting device and the depth limiting and regulating device are all mounted on the frame; the terrain detecting device is mounted on the frame and is used for detecting the real-time terrain state of a ground surface to be furrowed by the furrowing machine; a knife-blade included angle regulating device is mounted on the frame and is further used for regulating the opening-closing angles of combined furrowing knife blades according to the demand of a user; the depth limiting and regulating device comprises a first depth limiting device and a second depth limiting device; the depth limiting and regulating device is used for regulating the heights of the first depth limiting device and the second depth limiting device based on thedetection result of the terrain detecting device. The combined knife blade type terrain-self-adaptation furrowing machine is used for avoiding the problems that the furrowing depth is not uniform anda furrow dam is unsymmetrical, which are caused as the ground surface is uneven, guaranteeing the consistency of the furrowing depth and providing convenience for later drainage and irrigation.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Easy-to-collect-and-carry lever-type cardiopulmonary resuscitation compressor

The utility model relates to an easy-to-collect-and-carry lever-type cardiopulmonary resuscitation compressor, which comprises a fixed part and a swing part. The swing part and the fixed part are hinged by a swing shaft; the swing part comprises a press head, a press swing rod, a movable handle held by the rescuer's wrist. The swing end of the press swing rod is connected with the movable handle;the fixed end of the press swing rod is connected to the swing shaft; the press head and the press swing rod move up and down around the swing shaft with the movable handle; the easy to collect and carry lever-type cardiopulmonary resuscitation compressor is characterized in that the fixed part is a scaffold, the swing shaft is mounted on the scaffold, the swing end of the press swing rod is alsoconnected with a vertical floating grounding bar, the press swing rod is made in subsection, and movable plug-in structures are arranged between sections of the press swing rod. The easy-to-collect-and-carry lever-type cardiopulmonary resuscitation compressor has the advantages of small volume and low cost, which is suitable for the popularization of family and public places so that first-aid compressions can be carried out at once, and can effectively control the pressing depth and save energy.
Owner:黄浩扬

Threaded hole repairing drill bit assembly and threaded hole repairing method

ActiveCN108031933AFix safe and fastGuaranteed positioning sizeThread cutting toolsThread cutting machinesEngineeringWrench
The invention provides a threaded hole repairing drill bit assembly and a threaded hole repairing method. The threaded hole repairing drill bit assembly comprises a first rod-shaped body, a second rod-shaped body and a third rod-shaped body which are sequentially used in a threaded hole repairing process. The first end of the first rod-shaped body, the first end of the second rod-shaped body and the first end of the third rod-shaped body are provided with connecting portions which are connected with a spanner, the second end of the first rod-shaped body, the second end of the second rod-shapedbody and the second end of the third rod-shaped body are provided with spiral cutting knives, and the diameter of the first rod-shaped body, the diameter of the second rod-shaped body and the diameter of the third rod-shaped body are matched with the inner diameter of a threaded hole. The end portion of the cutting knife of the first rod-shaped body and the end portion of the cutting knife of thesecond rod-shaped body are provided with guide parts used for being clamped into the threaded hole respectively, and the diameter of the guide parts is matched with the tooth top circle of the threaded hole. The threaded hole repairing drill bit assembly can be used for safely and rapidly repairing the threaded hole of which threads are damaged or the threaded hole which does not meet the requirement of a measurement standard.
Owner:CRRC TANGSHAN CO LTD +1

Paddy field shallow, wet and dry water quantity monitoring and control instrument

The invention discloses a paddy field shallow, wet and dry water quantity monitoring and control instrument, and belongs to the automatic monitoring and control technology. A soil water content positive pole detection probe, a negative pole detection probe and a pyramid body are fixedly installed outside the lower end of a shell, an upper water level positive pole detection probe and a lower water level positive pole detection probe are installed in the shell in the mode of being capable of moving up and down to be adjusted, an inner cavity in the lower lateral portion of the shell and the exterior are of an communication structure, the soil water content positive pole detection probe, the upper water level positive pole detection probe, the lower water level positive pole detection probe and the negative pole detection probe are respectively communicated with a sensing information processor through wires, and the sensing information processor is sequentially connected with an electronic valve opening-closing automatic controller and an electronic automatic control water valve through wires. The paddy field shallow, wet and dry water quantity monitoring and control instrument provides the technical support for popularization and application of the advanced paddy field shallow, wet and dry alternate circulation irrigation agriculture technology for north cold region paddy planting, and has the advantages of being novel and reasonable in structural design, high in automation degree, high in measuring and control accuracy, reliable in use and few in fault.
Owner:JIXI TIANHE TECH

Method for measuring throughput capacity of submersible electric pump

A method for measuring throughput capacity of a submersible electric pump includes measuring the inner diameter d1 of a sleeve; measuring the arc length L1 of a deflecting section and the bending curvature alpha 1 of the sleeve on the deflecting section; measuring the maximum outer diameter d2 and the length L2 of the submersible electric pump to be measured; determining that the electric pump is about to be damaged if the maximum bending curvature alpha 2, which is known to be 3 degrees from experience, of a submersible electric pump unit is larger than 3 degrees; computing Y1 and Y2 according to geometrical relationship; and determining that the submersible electric pump can get through when the Y1 is larger than or equal to the Y2; and determining that the submersible electric pump cannot get through when the Y1 is smaller than the Y2. The method has the advantages that whether the submersible electric pump can get through a bent section in a bent oil well or not can be measured, the problem that the submersible electric pump is jammed in the bent section during actual operation so that the requirement on pump setting depth cannot be met is avoided, and damage to the electric pump and damage to the oil well during operation are also avoided.
Owner:李健忠

Safety protection device for injector

The invention belongs to the technical field of medical instruments, and particularly relates to a safety protection device for an injector. The sliding inner tube unit is arranged in the fixed outer tube unit, and the needle cylinder clamping frame unit is arranged at the rear end of the sliding inner tube unit, so that the effect that injection operation is more accurate and safer is achieved. The protection device has the following advantages that firstly, after the needle cylinder is mounted on the protection device, the needle cylinder is always parallel to the fixed outer tube unit, and as long as the fixed outer tube unit does not deflect, the injection operation is vertical insertion, so that pain caused by deflection of a needle head is avoided; secondly, the sliding inner tube unit has a determined sliding distance on the fixed outer tube unit, the insertion depth can be ensured when the needle cylinders of the same specification are used, and the problem that the depth is not enough or too large is avoided; and thirdly, when the sliding inner tube unit and the needle cylinder are inserted together, the sliding inner tube unit is always and stably sleeved with the fixed outer tube unit, so that the stability of the needle cylinder is relatively high in the injection operation process.
Owner:SHANGHAI BRAVO TECH CO LTD

Pulmonary vein PFA atrial fibrillation ablation catheter

The invention discloses a pulmonary vein PFA atrial fibrillation ablation catheter which comprises an outer catheter, an inner catheter is sleeved with the outer catheter, a memory ablation needle set is arranged on the inner catheter, and the memory ablation needle set is composed of a plurality of memory ablation needles evenly arranged on the inner catheter in a circumferential mode. An ablation electrode is arranged in the middle of the upper surface of the memory ablation needle; the memory ablation needle is made of a memory alloy material. When the PFA ablation catheter is applied to pulmonary vein ablation, the memory ablation needle has very good flexibility and elasticity, and when the memory ablation needle set extends out of the outer end of the outer catheter to be opened, the memory ablation needle can be well matched with a pulmonary vein cavity in shape, so that the purpose that an ablation electrode is firmly attached to a myocardial wall is achieved; due to the arrangement of the width of the ablation electrode and the memory ablation needle, after the memory ablation needle is attached to the myocardial wall, the ablation electrode can be isolated from blood, a blood low-resistance path is cut off, and bubbles generated by electrolysis are prevented.
Owner:上海锐颢电子科技有限公司

Noise reduction and sound insulation apparatus, noise reduction and sound insulation circuit, and design method of noise reduction sound insulation circuit

The invention provides a noise reduction and sound insulation apparatus, a noise reduction and sound insulation circuit, and a design method of the noise reduction sound insulation circuit. The noise reduction and sound insulation apparatus is characterized in that the noise reduction and sound insulation apparatus is provided with a noise reduction and sound insulation housing, a microphone, a loudspeaker and a noise reduction and sound insulation circuit, and can divide the space where people are into noise space and noise reduction space; a pillow can be put in the noise reduction space, and the head of a sleeping user is arranged in the noise reduction space; compared with the related technology which performs noise reduction and sound insulation through earplugs or earmuffs, for the noise reduction and sound insulation apparatus, the user can avoid from external interference during the sleeping process with no requirements for plugging the earplugs or wearing the earmuffs, so that the sleeping quality is guaranteed; and therefore, the noise reduction and sound insulation apparatus can avoid the defect of poor blood circulation of ears, difficulty on entering the deep sleeping state for people, and hearing loss because noise reduction and sound insulation are carried out through the earplugs or the earmuffs.
Owner:HUITING ACOUSTICS TECH BEIJING CO LTD

Clothes treatment equipment

The invention relates to the technical field of clothes treatment equipment, and particularly provides clothes treatment equipment. The clothes treatment equipment aims at solving the problem that there are big errors of pre-locating cooperation between an existing clothes treatment drum and a shell of an existing direct drive motor. For the purpose, the clothes treatment equipment comprises an outer drum, an inner drum rotatably arranged in the outer drum, a direct drive motor and a clamping assembly used for tightly connecting the outer drum with the shell, and the direct drive motor comprises a shell and a driving assembly arranged in the shell and used for driving the inner drum to rotate; a reinforcement member is arranged on the shell and used for improving the strength of the shell.According to the clothes treatment equipment, the outer drum is tightly connected with the shell of the direct drive motor through the clamping assembly, the outer drum and the shell of the direct drive motor are pre-located, and the assembly progress rate of a drum washing machine is increased. By arranging the reinforcement member on the shell, the strength of the shell is improved, and the direct drive motor can bear the outer drum of the drum washing machine and loaded clothes in the work state.
Owner:QINGDAO HAIER DRUM WASHING MACHINE
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