45results about How to "Avoid excision" patented technology

The percutaneous probe, made in MRI - compatible materials, comprises: a body percutaneously inserted into the tissue of a patient's body organ (8) having a region (10) to be analyzed, treated and monitored during a single medical procedure; at least one information collection sensing device (30,33,34); treatment application transducers (30) 360 DEG disposed to emit focused or defocused therapeutic ultra-sound waves. The computerized system comprises a parametrizable command device (50) adapted to simulate then command a generation of the therapeutic ultra-sound waves, and to monitor the treatment by thermal MRI images.

The invention relates to a spine board dynamic stabilizing system, and belongs to the technical field of human body implanting objects of medical apparatuses. The spine board dynamic stabilizing system consists of an elastic structure and fixing plates, wherein the fixing plates are arranged at the two sides; the elastic structure is formed by connecting one or more than one U shape, a torsion fixing plate and an opening are respectively formed in two side plates of each U shape, and an anti-disengaging hook is arranged at the bottom part of the elastic structure; a semicircular screw hole and a fixing screw hole are formed in each fixing plate, a circular anti-disengaging screw hole is formed in each of the semicircular screw hole and the fixing screw hole, and an anti-disengaging hook is manufactured at the inside surface of each fixing plate. The spine board dynamic stabilizing system has the advantages that by utilizing the elastic structure, the dynamic stabilizing of extending, flexion and rotating of the spine operation section on the sagittal view is realized; the structure is simple, the stress is dispersed, the implanting is convenient, and the spine board dynamic stabilizing system can be applied to the diseases with overlarge lumbosacral angle, overshort spinous process or oversmall spinous distances. The spine board dynamic stabilizing system solves the problems of the existing dynamic spinous process inner fixator that the ligaments on the spinous parts need to be cut away or apart in the operation process, the cutting amount of spinous process bones is more, the diseases with overlarge lumbosacral angle, overshort spinous process or oversmall spinous distances cannot be treated, the installation and operation are complicated, and the injury in operator is large.

The invention discloses a frequency coordination control method specific to send-out islands of multiple direct current circuits. When a system suffers from a single-pole or dual-pole direct current locking failure, emergency frequency control on an island power grid with severe faults is performed by adopting a direct current power improving instruction (RUNUP), a direct current frequency limiter (FLC) and control measures of performing primary frequency modulation on a generator speed regulator and performing steady control on power cutting in turns. The frequency coordination control method is applicable to a multi-loop direct current transmitting end system with a concentrated control main station.

The invention relates to a DC power distribution network multi-function fault current controller and a control method. The multi-function fault current controller is formed by a series convertor loop(1) and a parallel convertor loop (2). The series convertor loop (1) is formed by an NPC full-bridge circuit, an LCL filter, a DC capacitor and a DC bleeder resistor. The parallel convertor loop (2) is formed by an NPC three-level DAB circuit. Under a stable state, the fault current controller can compensate circuit voltage surge, sag and pulsation; and under a fault state, the fault current controller can provide current-limiting inductance and backward voltage, thereby comprehensively realizing multiple functions of voltage regulation of a DC power distribution network and current limiting and blocking of the fault current, and improving use efficiency of the fault current controller.

The invention provides combined probe type tumor thermal-therapeutic apparatus capable of accurately measuring and controlling temperature. The combined probe type tumor thermal-therapeutic apparatus mainly adopts a reverse temperature control inactivation tumor therapeutic method which controls and determines the heating action in the tumor according to the induced temperature on the tumor margins. The apparatus has a function of performing selective thermal damage to biological tissues, so that by using the apparatus, any length of heating time for clinical treatment of tumors of any irregular shape can be obtained, and the probability that 100 percent of tumor tissues are completely inactivated for one time, but normal tissues around the tumors are not harmed, which is an important medical aim in clinical biomedicine, is realized.

The invention discloses a method for producing embossed grain yarns by using a bundling method, which comprises the following steps of: preparing tail drawing strips 3 from one or more cotton fibers with corresponding colors by cotton plucking, cotton blending, breaking and opening, coiling, cotton carding and drawing respectively, quantitatively controlling the tail drawing strips to between 35.0 to 40.0 grams per 10 meters, then drawing the tail drawing strips by a roving frame roller 4 to form roving 7, feeding auxiliary yarns 2 into the roving 7 to perform roving molding so as to produce embossed grain yarn roving 6, and finally producing the embossed grain yarns by directly using a spinning frame. The embossed grain yarns produced by the method have strong yarn levelness irregularity, particularly have more hairiness and prominent wrapping in embossed grain parts, and technically show a totally different spinning method compared with the traditional yarns; the woven fabric has delicate surface grains and unique style; and compared with the fabric woven by the traditional process, the fabric woven by the yarns spun by the novel method has extremely obvious surface style difference and is welcomed by the market.

The invention relates to an adjustable-bending tissue removal instrument for medical use. The tissue removal instrument comprises a tissue removal head, an adjustable-bending unit, a rotating shaft and an adjusting and control straight pipe, wherein the adjustable-bending unit comprises a linear section and a fixed bending part which is made from an elastic material; the linear section is fixedly connected to an adjusting and control handle; the far end of the rotating shaft is connected to the tissue removal head and the near end is provided with a connecting piece; the part of the rotating shaft, located on the fixed bending part, is composed of multiple sections of flexible shafts, and every adjacent two sections of the flexible shafts are connected by virtue of a stress releaser; each of the stress releasers comprises a plurality of connecting units, and the connecting units at two ends of the stress releaser are connected to nearby flexible shafts; movable connection, which is capable of achieving axis transmission rotating motion along the connecting units, is arranged between the adjacent two connecting units; the adjusting and control straight pipe is sleeved outside the adjustable-bending unit; and by operating the adjusting and control handle, the adjusting and control straight pipe is controlled to move in an axial direction. The rotating shaft of the invention is capable of transmitting torque by virtue of the plurality of the stress releasers, so that the alternating stress from bending is eliminated, fatigue breakage in the flexible shafts is avoided and the reliability of the instrument is improved.

The invention discloses a remote isolation circuit and a braking fault isolation system and method for an unmanned train. The remote isolation circuit comprises an isolation command control switch and an either-or path connection control group connected to the isolation command control switch, wherein the either-or path connection control group comprises an input side and a plurality of output sides; the input side of the either-or path connection control group is connected in series with the isolation command control switch; and each output side of the either-or path connection control group is provided with a connection point so that the output sides of the either-or path connection control group are connected to a device needing to be isolated through the connection points. The remote isolation circuit can accurately and safely realize the remote isolation of the braking fault of a bogie of the unmanned train and meet the safe operation requirement of isolating air brake of only one faulty bogie of the unmanned train, thereby preventing from mistakenly cutting off any bogies or cutting off more than one bogie with braking fault because of a single point of failure in the circuit, and ensuring the safe braking distance and traveling safety of the unmanned train.

The invention relates to a fault current controller of a DC power distribution network. The fault current controller comprises a filtering loop, a series converter loop and a parallel converter loop,wherein the filtering loop comprises an LCL filter, the series converter loop comprises a full-bridge circuit, and the parallel converter loop comprises a DC / DC circuit. Under a steady-state condition, the fault current controller can be used for compensating temporary rising and temporary reduction of a voltage of a circuit and pulse; and under a fault condition, the fault current controller canbe used for providing current-limiting inductance and a reverse voltage, voltage adjustment of the DC power distribution network is comprehensively achieved, various functions of fault current limiting and blocking is achieved, and the application efficiency of the fault current controller is improved.

The invention relates to improved recombination systems and methods for eliminating maker sequences from the genome of plants. Particularly the invention is based on use of an expression cassette comprising the parsley ubiquitin promoter, and operably linked thereto a nucleic acid sequence coding for a sequence specific DNA-endonuclease.

The invention relates to a direct-current overvoltage suppressing method of a flexible direct-current power transmission system connected with a wind farm in the technical field of wind farm power transmission. When the voltage of a receiving-end alternating-current system drops, the alternating-current voltage frequency output by a sending-end converter station is increased according to acquired direct-current voltage and is tracked in real time by a doubly-fed wind turbine controller. The doubly-fed wind turbine controller adjusts the rotation speed of a doubly-fed wind turbine according to the relation between the alternating-current voltage frequency and the angular speed of the doubly-fed wind turbine so as to increase the kinetic energy of the wind turbine, reduce the output power of the wind farm and suppress the rise of the direct-current voltage. When the voltage of the receiving-end alternating-current system is restored to the rated value, the sending-end converter station controls the alternating-current voltage frequency to be restored to the rated value. According to the method of the invention, neither wind turbine switching nor communication between the converter station and the wind farm is needed, the system is more reliable, and adjustment is quicker.

The invention discloses a stable control system and a load shedding method thereof. The stable control system comprises a stable control master station, a stable control substation and a stable control execution station, wherein the stable control master station, the stable control substation and the stable control execution station are in communication connection with each other successively. Thestable control master station is used for carrying out fault judgment in a 500kV power grid, and distributing required load shedding quantity to the subordinate 220kV stable control substation. The stable control substation is used for carrying out fault judgment in a 220kV power grid, distributing required load shedding quantity to the subordinate 110kV stable control execution station, and executing load shedding through a monitoring background after receiving a load shedding command of the superior 220kV stable control substation. The method is achieved based on the stable control system.According to the invention, load shedding objects are refined and reliability of implementation of load shedding measures is ensured.

The invention provides a mine car pull rod seat welding maintenance method. A pull rod seat is prevented from being integrally cut, only parts, provided with holes, on old side plates (a first side plate and a second side plate) are cut off, and repair welding of new side plates (a third side plate and a fourth side plate) are carried out at the cutting positions; and specifically, the old first side plate is firstly cut off, spot welding is carried out on the new third side plate with the old second side plate as a standard, then the old second side plate is cut off, the new fourth side plateis arranged with the new third side plate as a standard, and the third side plate and the fourth side plate are welded to the original cut-off positions, so that the consistency of the positions of pin holes in the new side plates and pin holes in the old side plates is effectively guaranteed, and maintenance and replacement of the pull rod seat can be achieved under the condition that an original pull rod seat is not disassembled.

The invention relates to a current-limiting blockout device and method of a DC power distribution network. The device is composed of a current-limiting blockout loop (1) and a pre-charging circuit (2). The fault current-limiting blockout loop (1) is composed of a first capacitor (C), a first lightning arrester (Z), a first power electronic switch device (S1), a second power electronic switch device (S2), a third power electronic switch device (S3), a fourth power electronic switch device (S4) and a first current-limiting inductor (L). Thus, a fault current in the DC power distribution networkcan be limited and blocked rapidly, and impact of the fault current on a power supply and loads is greatly reduced in the DC power distribution network.

The present invention relates to an attachment module (100) for a surgical microscope (10), the attachment module (100) being insertable into a main optical path between an objective (11) of the surgical microscope and an object (O) being observed, and including: a multi-photon fluoroscope (110) including a light source (111) for emitting excitation light, a scanning device (112) for directing the excitation light onto the object (O), and a detector (113) for detecting fluorescent light emitted from the object (O); and input coupling optics (120) for reflecting the excitation light from the scanning device onto the object (O).

One method for performing procedures, such as vaginal hysterectomies, comprises engaging first and second energy transmitting elements against a lateral side of a uterus. The first and second energy transmitting elements are positioned against opposed surfaces of a tissue mass extending from and including a fallopian tube or round ligament to a tip of a cervix. Third and fourth energy transmitting elements are positioned against another lateral side of the uterus and against opposed surfaces of another tissue mass extending from and including another fallopian tube or round ligament to the tip of the cervix. Radio frequency or other high-energy power is applied through the energy transmitting elements to the tissue masses. The power is applied for a time and in an amount sufficient to coagulate and seal the tissue masses within the energy transmitting elements. The coagulated tissue masses are then resected and the entire uterus removed.

The invention discloses a method for avoiding iron element enrichment in the head part of a zirconium alloy ingot casting. The method comprises the steps that firstly, raw materials are selected according to a target zirconium alloy ingot casting; secondly, nuclear grade zirconium grains and the component raw materials of the target zirconium alloy ingot casting are subjected to batching and smelting so as to obtain an intermediate alloy A and an intermediate alloy B, and the mass content of iron in the intermediate alloy A is 4% to 10% lower than that in the intermediate alloy B; thirdly, a consumable electrode A and a consumable electrode B is prepared from nuclear grade sponge zirconium correspondingly with the intermediate alloy A and the intermediate alloy B; and fourthly, the consumable electrode A and the consumable electrode B are welded to form a consumable electrode, the consumable electrode A is used as a head, and the zirconium alloy ingot casting is obtained by melting. According to the method for avoiding the iron element enrichment in the head part of the zirconium alloy ingot casting, intermediate alloys with different Fe contents are prepared, the intermediate alloys with low Fe contents are prepared into the consumable electrodes for head part melting of the target zirconium alloy ingot casting, the zirconium alloy ingot casting is obtained by vacuum melting,segregation of iron element in the head part of the zirconium alloy casting is avoided, removal of the head part of the zirconium alloy ingot casting is avoided, and the yield is improved.

There is provided a method of computing at least one slide-level tissue type for a tissue image of tissue extracted from a patient, comprising: receiving a tissue image of a slide including tissue extracted from the patient, segmenting tissue objects of the tissue image, creating a tissue image patches from the segmented tissue objects of the tissue image, classifying, by a patch-level classifier, each of the plurality of tissue image patches into at least one patch-level tissue type, wherein each of the classified tissue image patches is associated with a relative location within the tissue image, analyzing, by a slide-level analysis code, the classified at least one patch-level tissue type and associated relative location for each of the plurality of tissue image patches outputted by the patch-level classifier, for computing at least one slide-level tissue type for the tissue image, and providing the at least one slide-level tissue type.

The embodiment of the invention provides a video-assisted thoracoscope locating and marking method, which comprises the following steps of: obtaining locating information which includes the locating information of lesion; determining a preoperative locating mode according to the locating information; locating the lesion according to the preoperative locating mode, and obtaining the locating information of the lesion; carrying out a real-time calibration by combining with ultrasonic technique during the operation to obtain marking information; and resecting the lesion according to the locatinginformation and marking information of the lesion. By the adoption of the video-assisted thoracoscope locating and marking method, different preoperative locating methods are provided, meanwhile, theultrasonic three-dimensional real-time calibration technique is adopted during the operation to obtain the locating information of the lesion and the marking information related to the lesion, so thatthe lesion is accurately located and a definite surgical excision edge is provided at the same time, thereby avoiding unnecessary excision of the lesion, and overcoming the problem that an existing locating and marking method cannot accurately locate and mark small lesions, which leads to large excision range.

The invention discloses a blade tip extending structure and method of a wind power blade. The space between blade tips of new blades and new blades is filled with blade tip extending transition assemblies for type following, and the continuity of motion of the new blade tips and the new blade tips is guaranteed. Meanwhile, the blade tips are effectively and reliably extended, the structure body ofthe basic blade tips is prevented from being cut off, the rigidity of the basic blade tips is effectively utilized, and economic benefits are increased. In addition, stress transfer of two main loaddirections of waving and shimmying between the new blades and the old blades is fully considered, the torque effect of bending-torsional coupling of the blade tips is considered, it is put forward that a box type beam cap and a web plate are combined and connected, and the reliability of connection is effectively improved. For connection of the new blades and the new blades, the manner of manual pasting of woven glass fabric and vacuum bag pressing is used in combination, use of an adhesive is avoided, and the reliability of connection is further improved.

The invention relates to a direct-current overvoltage suppressing method of a flexible direct-current power transmission system connected with a wind farm in the technical field of wind farm power transmission. When the voltage of a receiving-end alternating-current system drops, the alternating-current voltage frequency output by a sending-end converter station is increased according to acquired direct-current voltage and is tracked in real time by a doubly-fed wind turbine controller. The doubly-fed wind turbine controller adjusts the rotation speed of a doubly-fed wind turbine according to the relation between the alternating-current voltage frequency and the angular speed of the doubly-fed wind turbine so as to increase the kinetic energy of the wind turbine, reduce the output power of the wind farm and suppress the rise of the direct-current voltage. When the voltage of the receiving-end alternating-current system is restored to the rated value, the sending-end converter station controls the alternating-current voltage frequency to be restored to the rated value. According to the method of the invention, neither wind turbine switching nor communication between the converter station and the wind farm is needed, the system is more reliable, and adjustment is quicker.

The invention relates to an embedded device for controlling an internal urethral orifice of a prostate gland and a placement method for the embedded device. The embedded device comprises a metallic ring and an external remote controller, wherein the metallic ring is circular or quasi-circular, is made from a material with biocompatibility and is provided with the external remote controller so as to control a shape of the metallic ring to be stretched and contracted. The placement method for the embedded device comprises the steps: S1: a doctor places the metallic ring into a urinary tract region of the prostate gland visibly under a synchronous endoscope; S2: the doctor incises a trace shallow flute mark at the urinary tract region of the prostate gland through circular incision and embedsthe metallic ring into the shallow flute mark; S3: the placed region maintains a middle part of the gland and an own direction of the metallic ring; and S4: after a circular metallic ferrule is fixed, the external remote controller can be equipped, extruding towards two lateral lobes is carried out effectively to strut the internal urethral orifice when circular stretching is observed, two circular sides are effectively retracted as required when urination ends up, a ureteral orifice is restored and even in a closed state, and thus, urine is effectively controlled or an abnormal phenomenon ofreverse semen flow is effectively avoided.

The invention provides an injection molding mold and an injection molding method using the same. The invention provides an injection molding mold. The injection molding mold comprises a mold frame assembly, a supporting assembly, a first jacking assembly and a second jacking assembly. The mold frame assembly is supported at the top end of the supporting assembly and is used for molding an injection molding part; the second jacking assembly is located between the first jacking assembly and the mold frame assembly, the first jacking assembly comprises a cutter, and the second jacking assembly comprises at least one ejector pin; when the first jacking assembly moves towards the mold frame assembly to a first position, the cutter penetrates through a cutting part of the injection molding part to separate a sprue part of the injection molding part from an injection molding body, and the ejector pin is located at an initial position; and when the first jacking assembly jacks up the second jacking assembly and moves towards the mold frame assembly to a second position, the ejector rod jacks up the injection molding body. The injection molding mold is high in operation efficiency, and the product yield can be increased.