270results about How to "Easy resection" patented technology

Surgical instruments are disclosed that utilize high-pressure liquid jets to perform a variety of useful functions. In certain embodiments, surgical instruments are described incorporating one or more liquid jets utilized to contact tissue excised by a non-liquid jet tissue-cutting component of the surgical instrument. In certain embodiments, a liquid jet of a surgical instrument can be utilized for the purpose of excising tissue of a patient immobilized and / or manipulated by the surgical instrument. Also described are surgical devices of the type characterized by curettes, rongeurs, bone punches, bone cutting forceps, morcellators, surgical micrograspers, with functionality and performance supplemented by the integration of a liquid jet. Also disclosed are methods of using certain liquid jet-containing surgical instruments for performing surgical procedures, for example surgical procedures on the spinal column of a patient.

Disclosed herein is an endoscopic surgical assembly having improved cutting efficiency. In particular, the present invention provides an endoscopic shaver assembly configured for automated axial as well as rotational motion so as to enhance tissue resection.

Disclosed herein is an endoscopic surgical assembly having improved cutting efficiency. In particular, the present invention provides an endoscopic shaver assembly configured for automated axial as well as rotational motion so as to enhance tissue resection.

In an MR guided surgical system which is carried out in the bore of an MR magnet and uses fluorescence to detect tumor cells, there is provided a microscope system for viewing the required part of a patient which includes stereoscopic viewing components arranged for use in generating 2D and 3D images displayed to the surgeon. The optical assembly is adjustable to change the view and the visual images are overlaid by the MR images. The visual image can be adjusted in response to movement of the surgical tool and the MR image displayed and / or the image obtained can be modified in response to change in the visual image and / or movement of the tool. The components in the bore are made compatible with the MR environment. A fluorescence delivery system is operated to automatically activate the delivery system in response to detection of the level of fluorescence.

This invention is an improved tissue-localizing device with an electrically energized locator element for fixedly yet removably marking a volume of tissue containing a suspect region for excision. The electrical energizing of the locator element facilitates the penetration of the locator element in to subjects tissue and minimizes resistance due to dense or calcified tissues. At least one locator element is deployed into tissue and assumes a predetermined curvilinear shape to define a tissue border containing a suspect tissue region along a path. Multiple locator elements may be deployed to further define the tissue volume along additional paths defining the tissue volume border that do not penetrate the volume. Delivery of electric cut-rent may be achieved through monopolar or bipolar electronic configuration depending on design needs. Various energy sources, e.g., radio frequency, microwave or ultrasound, may be implemented in this energized tissue-localizing device.

The invention relates to a high-speed railroad shoulder and drainage structure, which aims to solve the problems of graded broken stone cutting at the position of a high-speed railroad shoulder cable channel and effective draining of seepage water in the cable channel, avoid problems of difficult cutting and irregular cutting of graded broken stones at the position of the railroad shoulder cable channel as well as the problem that stability and sedimentation of the filling subgrade are influenced by poor seepage water drainage in the cable channel. The high-speed railroad shoulder and drainage structure comprises a subgrade bed bottom layer filled on the ground or a subgrade body, a subgrade bed surface layer filled on the top of the subgrade bed bottom layer and a cable channel arranged at a railroad shoulder. A composite geomembrane is laid between the subgrade bottom layer and the subgrade bed surface layer, and a geotextile is laid on the internal layer of the subgrade bed surface layer; a seepage material is arranged at the bottom part of the cable channel, and the outer side of the cable channel is provided with a subgrade protection shoulder. An asphalt board is arranged between the cable channel and the subgrade bed surface layer.

The invention relates to a transurethral intravesical operation instrument system for non-muscle invasive bladder cancer. The system comprises an endoscope with multiple passages, a) a tail end-bendable operation instrument with a bendable joint and / or b) a tail end-bendable operation instrument with a pre-bent pipe structure. According to the system, the tail end-bendable operation instrument with the bendable joint and the tail end-bendable operation instrument with the pre-bent pipe structure are independently matched with the endoscope with the multiple passages for use or the two operation instruments are simultaneously matched with the endoscope with the multiple passages for use, so that operation instrument tail ends in various shapes can be obtained, an encircling operating angle is formed, fine operation is facilitated, and an operated part can be observed in real time; compared with the prior art, the system has the characteristics of fine operation, all-angle operation, no blind zones, complete excision, convenience in the mastering of the excision depth, humanized operation and the like, the cure rate of non-muscle invasive bladder cancer is expected to be increased, operation complications are reduced, and the cancer recurrence rate is lowered.

The invention discloses a diesel engine cylinder hole water jacket sand core reinforcing method. The method comprises the following steps that (1) when a cylinder hole water jacket sand core is subjected to 3D printing, a printing supporting mechanism is additionally arranged at first, the cylinder hole water jacket sand core body is printed, and integral forming of the supporting structure and the cylinder hole water jacket sand core is achieved; (2) baking curing is conducted after printing forming; (3) a sand bone hole is longitudinally drilled in a water foot part of the cylinder hole water jacket sand core body; (4) a sand bone matched with the sand bone hole is selected and inserted into the sand bone hole to be fixed; and (5) the supporting structure in the sand core is removed, and the reinforced cylinder hole water jacket sand core with high precision and quality is obtained. The strength of the 3D printed air cylinder block cylinder hole water jacket sand core can be improved, the reinforced sand core can ensure the effect that the positions and shapes of the layers are not changed by dragging during printing, the forming strength and precision of the sand core are ensured, and the practice effect is good.

The invention discloses a robot for assisting celiac minimally invasive surgery. The robot comprises a base, wherein a worm wheel, a display, a PLC and a first motor are arranged on the upper surface of the base; the PLC is electrically connected with an external power supply; the first motor is electrically connected with the PLC; the display is electrically connected with the PLC; the worm wheel is mounted at the center of the upper surface of the base in a rotatable manner; and a worm is mounted on an output shaft of the first motor. The robot for assisting the celiac minimally invasive surgery is provided with a clamping device and an observing device; the clamping device can assist a doctor in clamping a diseased tissue in an abdominal cavity in an operation process, so that the doctor can excise or shape the diseased tissue; the observing device can transmit a condition in the abdominal cavity onto the display through a camera, so that the doctor can perform preoperative analysis on a prevalence situation in the abdominal cavity; furthermore, the observing device can further assist the doctor in observing an operation condition more conveniently in the operation process; and a provided lighting lamp is used for lighting an environment in the abdominal cavity, thus facilitating observation.

The invention provides tree barrier cleaning equipment for field maintenance of electric power. The tree barrier cleaning equipment comprises a main supporting rod mechanism, wherein a bottom tightening mechanism is arranged at the root of the main supporting rod mechanism; a protecting device is connected to the outer wall of the main supporting rod mechanism in a sliding and sleeving manner; a trimming device is arranged at the top end of the main supporting rod mechanism; protecting supporting rods are connected to connecting mounting rings on the outer walls of sliding mounting blocks in ahinging manner; the top and bottom sliding mounting blocks are arranged; the protecting supporting rods are also connected to the sliding mounting block at the lower end; each protecting supporting rod at the lower end is connected to the middle inner end of the corresponding protecting supporting rod at the upper end; and fixed clamping holes of which the sizes are the same as those of clampingblocks are formed in the two sliding mounting blocks, so that the two sliding mounting blocks can respectively fixed to the corresponding positions. According to the tree barrier cleaning equipment disclosed by the invention, a transparent plastic cloth or a net cloth can be additionally arranged on the protecting supporting rods, so that the protecting device integrally adopts the shape of an umbrella; and when branches are trimmed, the protecting device can block the falling branches to guarantee the safety of trimming workers at the lower part.

The invention relates to a cleaning method for removing metal oxide deposited on the surface of ceramic. The cleaning method comprises the following steps: incoming inspection; soaking in pure water;wiping with scouring pads; washing with pure water; soaking in isopropanol; surface sand blasting; cleaning with potassium hydroxide and hydrogen peroxide; cleaning with nitric acid and hydrofluoric acid; soaking in pure water; baking at high temperature; washing under high pressure; ultrasonic cleaning; nitrogen purging; and drying. Aluminum oxide sand blasting treatment is adopted, the roughnessof the surface of a ceramic component is improved, the sediment adsorption capacity is improved, permeation pollutants in micropores of the ceramic component can be cut off easily through a high-temperature baking process, the surface of the ceramic component is cleaned through ultrasonic cleaning and nitrogen, and particle pollutants on the surface of the ceramic component are greatly reduced. Particle pollutants and deposited pollutants on the surface of the ceramic part and in micropores can be completely removed, the single use time of the ceramic part is doubled, the use frequency of theceramic part is increased, and the use cost of customers is reduced.

The invention provides a minimally invasive surgery assisting device. The minimally invasive surgery assisting device comprises an in-vitro device, an in-vivo device, a positioning probe and a controlsystem, wherein the in-vitro device comprises an in-vitro magnetism generating device and a driving mechanism, the in-vitro magnetism generating device provides a rotating magnetic field, and the driving mechanism drives the in-vitro magnetism generating device to move and / or rotate; the in-vivo device comprises a magnetic assisting part and a fixing clamp connected with the magnetic assisting part; the positioning probe comprises a magnetic field sensor detecting the magnetic field intensity of the in-vitro magnetism generating device; the control system is directly or indirectly communicated with the driving mechanism and the positioning probe. The minimally invasive surgery assisting device has the advantages that the rolling angle of the to-be-stripped mucosa in any spatial facing direction can be easy to control, operation repeatability is high, speed is high, and safety and reliability are realized.