7results about How to "Efficient resection" patented technology

The utility model relates to a surgical stitching instrument and an end actuator thereof, the end actuator comprises a first clamping component, a second clamping component and a push broach piece, the second clamping component is movably connected with the first clamping component and can be matched with the first clamping component to clamp tissue, the first clamping component is provided with a feed groove extending in the axial direction and a nail bin provided with anastomosis nails, and the second clamping component is provided with a push broach piece. The feed groove divides the opposite surfaces of the first clamping component and the second clamping component into a first part and a second part which are located on the two sides of the feed groove, the width of the first part is larger than that of the second part, and the nail bin is located on the first clamping component where the first part is located. According to the end executor, the nail bin is arranged on the single side of the feeding groove, the function of precisely suturing tissue needing to be reserved is achieved, meanwhile, the tissue to be cut off can be efficiently cut off, and resource waste cannot be caused; by reducing the width of the second part, the end effector is particularly suitable for treating the situation that the excision range of the tissue to be excided is narrow, and the flexibility and adaptability of surgical operation are remarkably improved.

This utility model proposes a screening dust removal machine for the production of granular silicon, comprising: a hollow cylindrical shell (14), the top of the shell (14) being closed, and a product inlet (1) being provided at its edge; a bottom discharge plate (10) being fixed at the bottom of the shell (14), the bottom discharge plate (10) being a downwardly protruding conical surface, and a discharge port (11) being provided at its center; an accelerated dust removal device for removing material dust is fixedly provided below the product inlet (1) inside the shell (14); and a centrifugal screening device for screening materials is fixedly provided below the accelerated dust removal device.

The utility model discloses a rubber ring burr cutting device relates to the field of rubber ring production, to solve the mode of the existing technology through arc tensioning strip and tighten the rubber ring and easily lead to the deformation of rubber ring, make the round cutting tool burr cutting of rubber ring inaccuracy, and further damage the problem of rubber ring. The locating disc is connected with the rubber ring in the outer side of the locating disc, and the L-shaped support frame is fixedly connected with the rubber ring in the rear end middle part of the placing table, the front end of the upper end of the L-shaped support frame is fixedly connected with the hydraulic rod, the inner side upper end of the L-shaped support frame is connected with the fixed plate, the lower end of the fixed plate is connected with the movable plate, the lower end middle part of the movable plate is connected with the annular cutter, through the detachable connection design between the locating disc and the placing table, the user can easily replace the locating disc of different diameter, to adapt to the rubber ring of different inner diameter, thereby improve the versatility and flexibility of the device.

The invention discloses a vehicle active short circuit protection circuit, an EMB system, an EPS system and a protection method. The active short-circuit protection circuit for the vehicle is applied to a main circuit comprising a battery, an inverter, a gate driving module for driving the inverter and a motor. The active short-circuit protection circuit for the vehicle comprises a PWM output switch module which is connected in series between the output end of a gate pole driving module and the control end of each lower bridge arm switch tube of an inverter; the short-circuit protection power supply module is powered by a battery and is converted into voltage matched with each lower bridge arm switch tube; the short-circuit protection switch module is connected in series between the short-circuit protection power supply module and the control end of each lower bridge arm switch tube; and the short-circuit protection switch module is switched on when the voltage of the battery exceeds a set threshold value, and each lower bridge arm switch tube is controlled to be switched on, so that each stator winding of the motor is coupled. According to the embodiment of the invention, the fault in the line can be effectively removed.

This utility model discloses a metal wire mesh burr removal device, including a support frame and a base frame, wherein the base frame is fixedly connected to the support frame. It also includes a positioning component and a burr removal component, wherein the positioning component is located on the top of the base frame, and the burr removal component is located on the support frame. This utility model belongs to the field of metal wire mesh processing technology, specifically providing a metal wire mesh burr removal device that solves the problems of manual knife cutting, such as difficulty in cutting through the mesh, potential for misalignment, and poor stability.

The application discloses a low-temperature freezing rotary cutting device, which is characterized by sequentially sleeving an outer sleeve, an inner sleeve and an inner tube from outside to inside, setting a puncture tip at the head end of the outer sleeve, fixing the tail ends of the outer sleeve and the inner sleeve on a fixing piece, forming an intermediate cavity for the air inlet structure to enter between the outer sleeve and the inner sleeve, setting a sampling groove near the head end of the outer sleeve and the inner sleeve, setting a sealing structure at the intermediate cavity corresponding to the sampling groove position, forming a plurality of release cavities and air inlet chambers communicated with the release cavities, setting the air inlet structure to provide refrigerant to the corresponding release cavities through the air inlet chambers, and setting corresponding freezing holes of the inner sleeve at the release cavities. After the tumor tissue is sucked into the sampling groove under the negative pressure, the refrigerant freezes the tumor tissue through the freezing holes to make the tumor tissue lose the original biological elasticity, and then the tissue is rotary cut through the inner cutting blade on the inner tube, so that the tumor tissue can be effectively removed, and the sampling efficiency is improved.

The invention provides a prostate laser enucleation device based on a flexible mechanical arm, which comprises a main knife part, and the main knife part comprises the flexible mechanical arm used for moving between a prostate and an envelope and a laser head used for cutting so as to complete tissue cutting of a target area in an operation; and the auxiliary part comprises a video imaging structure for displaying and a water inlet and outlet structure for cutting and cleaning, and relates to the technical field of prostate surgery. The device comprises a flexible mechanical arm composed of a plurality of knuckles, and a laser head is arranged at the tail end of the flexible mechanical arm and used for laser cutting and separation of tissue between the prostate and the capsule. The device is further provided with a video imaging system, a laser optical fiber access structure and a water inlet and outlet structure, so that the operation precision, safety and operability are improved. By accurately controlling the flexible mechanical arm, the prostate can be effectively cut off especially at the position close to the urethral sphincter, and meanwhile unnecessary damage to surrounding sensitive tissue is avoided.