74 results about "Direct vision" patented technology

The invention relates to the technical field of medical instruments, in particular to a negative pressure flushing type rectal anastomotic fistula treatment device with a blocking balloon, which comprises a drainage tube, a balloon, an annular sponge sleeve, a water injection tube and a filling tube, the balloon is arranged at the near end of the drainage tube, and the filling tube is communicated with the balloon and used for filling media into the balloon to block an enteric cavity; the annular sponge sleeve wraps the outer side of the drainage tube below the balloon, and a side hole II is formed in the section, wrapped by the annular sponge sleeve, of the drainage tube; the water injection pipe is arranged on the drainage pipe and used for injecting flushing fluid into the annular sponge sleeve area. The far end of the drainage tube is used for being connected with a negative pressure device so that a continuous negative pressure drainage environment can be formed in the annular sponge sleeve area, the negative pressure flushing type rectum anastomotic fistula treatment device with the blocking balloon does not need to be placed under an endoscope and only needs to be placed under direct vision of an anoscope, and operation is easy; near-end intestinal juice can be blocked, and the influence of the intestinal juice on healing of an anastomotic stoma is reduced.

The invention provides a balloon endoscopic system for intravascular direct vision examination, and relates to the technical field of medical instruments, the balloon endoscopic system comprises a catheter, a balloon capable of being filled and discharged, an endoscope lens, a light source assembly and an image transmission processing module, a cavity channel used for containing the endoscope lens and a conduction component of the light source assembly is formed in a catheter body of the catheter, and the catheter body of the catheter is internally provided with a cavity channel used for containing the endoscope lens and the conduction component of the light source assembly; the filling pipeline is used for supplying liquid to the inflatable and deflatable balloon; the inflatable and deflatable balloon is fixedly connected to the outer surface of the front end of the catheter, and the inflatable and deflatable balloon is used for bulging after being conveyed to a target position in a blood vessel. The inflatable and deflatable balloon can block blood flow and open the blood vessel wall after bulging and is matched with transparent filling liquid injected into the filling pipeline, residual blood can be further removed, a blood-free observation window is formed, interference of blood on imaging is avoided, and a foundation is laid for clearly observing the condition of the blood vessel wall. The inner wall of the balloon is coated with a nano anti-fog coating, so that the penetrability of a light source is ensured, and the fogging surface influence caused by blood residue or temperature difference can be avoided.

The present invention discloses a mapping method and system that integrates semi-direct vision and radar odometry. The method includes obtaining a pixel correspondence relationship between a current frame and a key frame; using a high-frequency camera to obtain image frames within a preset time period, processing the image frames to obtain an initial pose of the image frames, and optimizing the initial pose to a first optimized pose according to the correspondence relationship; dividing the image frames into key frames and non-key frames, optimizing the first optimized pose of the image frames to a second optimized pose according to a reprojection error, and performing multi-frame joint optimization on the second optimized pose of the key frames to form a third optimized pose of the key frames; integrating the second optimized pose of the non-key frames with the third optimized pose of the key frames to generate a visual pose; aligning the low-frequency radar with the high-frequency camera frequency to obtain a reconstructed radar point cloud with the same frequency as the high-frequency camera, using the visual pose as the input pose of the radar to perform residual constraints on the reconstructed radar point cloud, and outputting the final pose and map.

The utility model provides an anti-dazzle light strip lamp which comprises a fixing base, a protruding plate fixedly connected to the top of the fixing base, a through groove formed in one side of the fixing base, limiting grooves formed in the two sides of the fixing base, side covers clamped in the limiting grooves, an inserting groove formed in the through groove, a light-transmitting cover inserted in the inserting groove and a lamp holder fixedly connected to the bottom of the fixing base. A plurality of sets of LED light-emitting lamp beads are evenly arranged on the top of the lamp holder, a controller is fixedly connected into the fixing base, the lamp holder is perpendicular to the light-transmitting cover, and the top of the lamp holder is flush with the bottom of the through groove. Light emitting of the LED light-emitting lamp beads is controlled through the controller, light emitted by the LED light-emitting lamp beads irradiates upwards, light rays penetrate through the light-transmitting cover and are reflected and penetrate through the fixing base, a certain irradiation angle is formed, the soft light effect is achieved, the light-transmitting cover enables light spot boundary transition to be soft, glare is reduced, and the dazzling feeling of eyes is reduced during direct vision.

The utility model discloses a direct-viewing pressure feedback type radial artery compressor, and belongs to the field of medical instruments. A direct-view pressure feedback type radial artery compressor comprises a fixing plate, a pressure feedback device and a pressure feedback device. The bandage is arranged at one end of the fixing plate and binds the fixing plate to the arm of the patient; the direct-viewing pressure feedback type radial artery compressor further comprises a pressure applying piece and a pressure feedback piece, wherein the pressure applying piece is movably arranged on the fixing plate; the driving group is arranged on the fixed plate and is used for driving the pressure applying piece to move; the air bag is arranged on the pressure applying piece, located at the lower end of the pressure applying piece and abutted against the arm of the patient; the pressure indicating piece is arranged on the pressure applying piece in an up-down sliding manner; an air hole communicated with the air bag is formed in the pressure applying piece; the pressure indicating piece is arranged in the air hole in an up-down sliding mode. The direct-view pressure feedback type radial artery compressor has the beneficial effect that the direct-view pressure feedback type radial artery compressor with the indication function is provided.

The invention relates to an imbedding device for a nerve microvascular nerve decompression operation gasket under direct vision. The imbedding device comprises a tube assembly, a guide wire assembly, a decompression gasket and a pushing component, the tube assembly comprises a sheathing canal, a balloon and a gas transmission component, the balloon is arranged on the sheathing canal and close to the front end of the sheathing canal, and the gas transmission component is arranged on the sheathing canal and communicated with the balloon; the guide wire assembly is contained in the sheath tube, the guide wire assembly comprises a guide wire, at least two pull wires and a camera, a snake bone mechanism is arranged on the guide wire, the front end of the guide wire extends out of the front end of the sheath tube, the pull wires are connected to the snake bone mechanism, and the camera is arranged at the front end of the guide wire; the decompression gasket is of a cylindrical hollow structure and is arranged outside the sheath tube in a sleeving mode. The pushing component is arranged outside the sheathing canal in a sleeving mode and used for pushing the pressure reduction gasket towards the front end of the sheathing canal. The implantation device does not need to enter and exit from the opening repeatedly, operation of a doctor is simplified, the surgical operation difficulty is reduced, the surgical time is shortened, and the surgical risk is reduced.

The utility model relates to the technical field of medical equipment, in particular to a high-torsion-control soft-head ultra-smooth distance-measuring urinary mixed guide wire, an inner core of the guide wire is in a polygonal oval shape, the inner core of a soft head part is ground and processed into a polygonal oval gradually-changed slender inner core, and the farthest side end is in a flat polygonal oval slender shape. The top end is welded into a round ball head through plasma, a multilateral oval coil and a far-side multilateral oval coil are wound on an inner core of the guide wire soft head portion, the guide wire soft head portion and the guide-in section plastic-coated sleeve are made of polyurethane materials coated with hydrophilic coatings and consistent in color, the color of the guide wire soft head portion and the guide-in section plastic-coated sleeve is obviously different from that of the handheld operation section, and the handheld operation section plastic-coated sleeve is made of hydrophobic polytetrafluoroethylene. A positioning ranging ring or a ranging section is provided. According to the guide wire, the head flexibility, the tracking performance and the twisting control performance of the guide wire can be improved, the high lubricity of the soft head and the leading-in section is kept, it is guaranteed that the handheld operation section is easy to hold and operate, the guide wire can smoothly pass through a narrow obstructive diseased region, a user is accurately assisted in ranging under endoscope direct vision, and treatment is more accurate.

The abdominal wall retractor for the observation hole of the laparoscope comprises a first retraction arm and a second retraction arm, the first retraction arm and the second retraction arm are hinged through a hinged shaft, and the first retraction arm comprises a first retraction arm front section, a first retraction arm middle section and a first retraction arm rear section. The end part of the rear section of the first retraction arm is fixedly connected with a first operation ring; the second retraction arm comprises a second retraction arm front section, a second retraction arm middle section and a second retraction arm rear section, the end part of the second retraction arm rear section is fixedly connected with a second operation ring, and the end part of the first retraction arm front section is movably connected with a first retraction rod and a second retraction rod; and the end part of the front section of the second retracting arm is movably connected with a third retracting rod and a fourth retracting rod. The utility model has the beneficial effects that the abdominal wall of the observation hole and the subcutaneous fat layer can be expanded, and the anterior sheath layer and the peritoneal layer can be better exposed, so that the peritoneal layer and the anterior sheath layer can be better sutured under direct vision, related complications of a puncture hole are avoided, the use is safe and reliable, and the operation time of medical personnel is saved.

The invention discloses a laparoscopic cholecystectomy superfine auxiliary instrument and relates to the technical field of medical instruments, the laparoscopic cholecystectomy superfine auxiliary instrument comprises a handle, a superfine puncture part and a head, the superfine puncture part comprises an outer sleeve and a puncture needle, the two ends of the outer sleeve are connected with the handle and the head respectively, the puncture needle is arranged in the outer sleeve, and the front end of the puncture needle is provided with a puncture tip; the handle controls the puncture needle to slide back and forth so as to control the opening and closing of the head part. According to the scheme, ultramicro-invasive puncture is achieved through the detachable head and the superfine puncture part, firstly, the superfine puncture part can conduct ultramicro-invasive opening on the abdomen of a patient through the puncture tip at the front end of the puncture needle, so that the superfine puncture part enters the abdominal cavity of the patient, and then the superfine puncture part penetrates out of the body of the patient under the guide of a converter of an umbilical laparoscope opening; the head assembly is accurately completed under in-vitro direct vision, then the head assembly is returned to the abdomen of a patient to complete an operation, and under the condition that the opening and closing distance and the clamping force of the head are proper, ultramicro-wound trepanning is completed, postoperative scars are eliminated, and the pain of the patient is relieved.

The nanopowder includes a nanoparticle having a core particle with a thin film coating. The core particle is formed independently of the thin film coating from at least one of a rare earth metal-containing oxide, a rare earth metal-containing fluoride, a rare earth metal-containing oxyfluoride, or a combination thereof. Thin film coatings may be formed using non-direct vision techniques such as atomic layer deposition (ALD). Also disclosed herein are nanoceramic materials formed from the nanopowders and methods of making and using the nanopowders.

The invention discloses a low-cost laparoscope nasointestinal tube indwelling guiding device. The low-cost laparoscope nasointestinal tube indwelling guiding device comprises a light-emitting unit, a guiding handle and a guiding optical waveguide. The light-emitting unit is composed of a power supply device, a light-emitting body and a light-emitting connector, the power supply device supplies power to the light-emitting body, and the light-emitting connector is in butt joint with the connector of the guide handle. The near end of the guide handle is provided with a plurality of ports used for connecting the light-emitting unit and the injector. The far end of the guide optical waveguide is in a hemispherical head shape and is provided with a luminous point. In a limited space and view under the laparoscope, the functions of visible light spot real-time positioning and dynamic lubrication are integrated into a low-cost device, real-time optical navigation under direct vision of the laparoscope is achieved, external image equipment is not needed, and the method has the advantages of simplicity, accuracy, safety and economical efficiency.

The utility model relates to the technical field of deciduous tooth root canal treatment, in particular to a flushing auxiliary instrument for deciduous tooth root canal treatment, which comprises an injection needle body, a cylinder is arranged at the mounting end of the injection needle body, external threads are arranged on the outer surface of the cylinder, and a plug is arranged in the cylinder. The interior of the plug is of a hollow structure and is installed on the inner wall of the injection needle body in a communicated mode, the injection end of the injection needle body is arranged to be an oval pointed end, a plurality of flushing holes are evenly formed in the outer side wall of the oval pointed end, and the installation end of the injection needle body is installed on an externally-connected injector body. According to the utility model, the resistance mood of children can be avoided, a threaded retention syringe or a pluggable retention syringe can be selected according to clinical practice, and meanwhile, the bending angle of the syringe needle body can be adjusted according to different orientations of the root canals of the deciduous molar teeth for pre-bending, so that the flushing efficiency of the root canals in different orientations under non-direct vision is improved.

A direct vision cryosurgical and methods of use are described herein where the device may generally comprise an elongated rigid structure with a distal end, a proximal end, and a central lumen. The distal end may comprise a non-coring optically transparent needle tip with at least one lateral fenestration in communication with the central lumen. The distal end may also house at least one imaging device configured for distal imaging. A proximal end of the device may comprise a handle with a means for connecting the imaging device(s) to an imaging display(s), and a means for accessing bodily tissue in the vicinity of the distal end with a cryo-ablation probe through the central lumen and the lateral fenestration(s) for diagnostic or therapeutic purposes.

The invention discloses a preparation method of a mixed support type multi-angle visual self-adaptive orthodontic implant anchorage guide plate. The preparation method comprises the following steps: S1, data acquisition; s2, data fitting is carried out; s3, designing an orthodontic planting nail; s4, designing a mixed support type multi-angle visual self-adaptive orthodontic implant guide plate: obtaining a dental crown-tooth root-mucosa model, designing a tooth-mucosa-occlusion triple mixed support type multi-angle visual self-adaptive implant guide plate, and further generating a mixed support type multi-angle visual self-adaptive orthodontic implant guide plate STL (Standard Template Library) file; s5, 3D printing is carried out; and S6, finished product preparation: removing the supporting rod from the printed guide plate, grinding and polishing, and sterilizing to finish the preparation. The anti-rotation displacement force of the guide plate is improved, and extra instrument fixation is not needed in the operation; the visual track and the head end opening expose the drill bit and the nail point in the whole process, guide plate dislocation is facilitated, a doctor can avoid tooth roots, maxillary sinus and neural tubes under direct vision, and the damage rate of the tooth roots is reduced.

The utility model relates to the technical field of detection, in particular to a pointer parallelism detection device, which comprises a base and a host with a display screen, a mounting bracket and a positioning seat are arranged on the base, the mounting bracket comprises a first plate and a second plate, the base, the first plate and the second plate jointly enclose to form an accommodating space, a camera is fixedly arranged in the accommodating space, and the positioning seat is arranged on the base. A lens of the camera faces the positioning seat, a mounting groove is formed in the top of the positioning seat, a positioning tool is placed in the mounting groove, the camera is electrically connected with the host, and the central axis of the lens of the camera and the top face of the cylinder are located on the same horizontal plane. According to the utility model, through the arrangement of the positioning tool and the camera located on the same horizontal plane with the positioning tool, the hour hand, the minute hand and the second hand on the clock point to the same direction, and the hour hand, the minute hand and the second hand on the clock are shot and amplified to the display screen of the host in equal proportion. The detection efficiency is relatively high, and the measurement precision is relatively high.

The application discloses a kind of micro-pixel group and micro-lens array near-eye display lens, belong to augmented reality and near-eye display technical field.The near-eye display lens includes: optical lens, micro-pixel group array arranged thereon, micro-lens array, and substrate thin layer material, transparent optical adhesive layer, protective layer;Micro-pixel group contains micro-nano pixel, micro-nano pixel is composed of micro-nano pixel element, and micro-nano pixel element is micron / nanometer order independent driving monochromatic light emitting unit, integrates micro-nano light emitting, driving and other devices and functional layer;Micro-lens covers one or more micro-pixel groups and is arranged close to one side of human eye, realizes light collimation focusing and deflection into eye.The application discards traditional complex relay optical system, directly integrates display and optical control unit in optical lens, can realize digital image display, real scene direct vision and accurate fusion of virtual and real image, with high transparency, high optical efficiency, large field angle characteristics, lens can realize light and thin design, and wearing comfort is high.

The utility model discloses a visual spine endoscope fusion channel device, which relates to the field of medical equipment and comprises a soft tissue expansion rod, a sleeve, a first fusion channel and a second fusion channel. When the second fusion channel is used, two arc-shaped blocking faces are fixed to the two sides of the end, located in the body of the patient, of the second fusion channel respectively, and the blocking faces are used for separating and blocking the neurodural mater and the export nerve root to the outer side of the second fusion channel. The soft tissue expansion rod, the sleeve, the first fusion channel and the second fusion channel which are designed to be of an oval structure are different from an existing coaxial endoscope system, in the operation process, the area of an incision formed in the body of a patient is smaller, and the operation space is larger; under the direct view of an endoscope camera system, conventional operation tools such as vertebral plate forceps are used for biting and removing bone tissues such as vertebral plates and zygopophysis for windowing, so that the operation time is greatly shortened, the situation that channels with different sizes are replaced for multiple times is avoided, and multiple injuries to soft tissues of a patient caused by repeated replacement of the channels are avoided. The replacement frequency is reduced, and the surgical operation time is shortened.

The invention discloses application of a hydrogel microneedle capable of being implanted into an abdominal cavity in colorectal cancer abdominal wall infiltration focus, and relates to the field of medicine. The traditional Chinese medicine composition is applied to clinical treatment of rectal cancer abdominal wall infiltration lesions, and a mouse subcutaneous tumor model and the abdominal wall infiltration lesions are verified, and the specific application method comprises the following steps that 1, after a mouse is subjected to general anesthesia, the abdomen of the mouse is opened, and the position of the abdominal wall infiltration lesions is detected and determined; step 2, clamping the sterilized micro-needle sheet by using noninvasive forceps and feeding the sterilized micro-needle sheet into an abdominal cavity; 3, attaching the microneedle substrate to the surface of a focus under direct view, and pressing to enable the needle body to penetrate through the peritoneum; and 4, flushing with normal saline to confirm that the microneedle is fixed, withdrawing the instrument, and suturing the incision. The microneedle physically penetrates through the surface layer of the peritoneum, the medicine is directly delivered to the deep layer of an infiltrating focus, the problem of low efficiency caused by the peritoneum barrier in the traditional therapy is solved, and the GelMA / hyaluronic acid hydrogel is gradually swelled and degraded in body fluid, so that collagenase, a macrophage scavenger and an anti-tumor medicine are continuously released, and the local effective concentration can be maintained for more than two weeks.

The embodiment of the present application provides a stent delivery device for use with a medical endoscope, and relates to the field of medical equipment, and the stent delivery device comprises a non-stent accommodating part and a stent accommodating part, the non-stent accommodating part is detachably connected with the stent accommodating part, and the non-stent accommodating part and the stent accommodating part cooperate to release a stent located in the stent accommodating part; the non-stent accommodating part can pass through a channel of the endoscope, and the outer diameter of the stent accommodating part is greater than that of the non-stent accommodating part. The stent accommodating part at the distal end can accurately and safely release the stent under the direct vision of the endoscope. When the stent in the stent delivery device needs to be replaced, the stent accommodating part and the non-stent accommodating part are detached, and then the stent accommodating part can be directly replaced, so that the replacement operation is convenient.

The present application provides a kind of spine surgery minimally invasive operation visual channel endoscope, including visual channel, lens, light source, guide rod, expansion pipe;Visual channel includes surgical operation channel, lens card slot, fixed connection part.Lens card slot is used to fix camera component part, and there is a light source hole on the two sides of lens card slot, for fixing cold light source head.Surgical operation channel is the channel of equal size up and down with external thread, it is convenient for surgeon to screw in and screw out soft tissue, reduce the extrusion and damage of channel to tissue.The visual channel endoscope, the visual field of surgeon can be directly operated under direct vision through surgical operation channel, also can be operated under mirror under the monitoring of camera.The double visual field of surgeon provides convenience and safety for operation, also is conducive to the observation and learning of assistant and learner, improves learning interest, is conducive to the promotion and development of spine minimally invasive surgery career.

The invention provides a multi-arm open-type implantation guide plate, and relates to the technical field of dental implantation, the multi-arm open-type implantation guide plate comprises a body fixed on upper and lower jaw dentitions or jaw bones and a guide plate sleeving the outer side of the body and used for positioning, and the middle of the guide plate is provided with a central platform for realizing stable positioning by using a multi-point plane stabilization principle. By means of a unique stable guide mode supported by multiple guide rails on the guide plate, implanting is completed under whole-course direct vision of a doctor, hard and soft tissue interference can be found in time in a fully-open implanting operation area, meanwhile, due to the strong supporting force of the multiple guide rails, the effect of correcting implanting drill bit deflection caused by different bone mineral densities in the implanting operation area is achieved, and the implanting efficiency is improved. The common planting hole type preparation difficulty caused by the friction resistance of the guide ring of the existing single-hole guide ring is avoided, and the heat generated in an operation area is reduced; secondly, a guide plate of a fully-open operation area formed by the device is combined with a water supply system on the implant dental handpiece to be matched with a water injection hole formed in the central platform to automatically spray water in multiple directions, so that the cooling efficiency is greatly improved, the implant cavity can be effectively prevented from being overheated, and the preparation efficiency is improved.

An auxiliary positioning device of invisible or unobservable laser line relates to the field of laser line positioning. It comprises front and rear mounted auxiliary laser generator and auxiliary laser lens, front and rear mounted measuring laser generator and measuring laser lens, auxiliary laser generator and auxiliary laser lens assembly and measuring laser generator and measuring laser lens assembly are in orthogonal relationship, wherein auxiliary laser lens and measuring laser lens are respectively arranged at 45 degrees with laser combiner, laser combiner can project invisible or unobservable laser line and auxiliary laser line in parallel relationship to the surface of the object, at the same time, due to the same source of power supply of measuring laser generator and auxiliary laser generator, there is still observable auxiliary laser line under the condition that measuring laser line is not observed, so that the user can be reminded that the laser emitter has worked, and direct vision of the laser emitter is avoided.

The invention discloses an endoscopic three-finger type hard supporting water bag structure, and relates to the field of medical instruments, the endoscopic three-finger type hard supporting water bag structure comprises a mounting column, a first mounting groove is formed in the inner top wall of the mounting column, an adjusting assembly is arranged in the mounting column, a first supporting assembly connected through the adjusting assembly is arranged in the mounting column, and a driving assembly is arranged in the first mounting groove; through combination of three-finger type unfolding design and water bag flexible supporting, a traditional rigid traction stress conduction mode is changed, an adjusting assembly drives a first mounting cylinder and second mounting cylinders on the two sides to form a finger-like distributed layout, and a water bag which is expanded by injecting water in a first supporting assembly is matched; supporting force is transmitted to the surface of a tender organ such as the liver through three independent and flexible contact areas, the contact area is greatly enlarged, precise adaptation of supporting postures is achieved through a multi-stage adjusting mechanism, the view exposure requirements under different operation scenes are met, a clear and stable direct view is provided for operation instruments, and the operation efficiency is improved. And the accuracy of surgical operation is improved.

This application provides a medical device having a visual puncture apparatus. The visual puncture apparatus comprises a puncture needle, an ultrasound probe, an imaging assembly, and a display device, wherein a distal end of the puncture needle has a puncture tip and is provided with a working channel therein, the imaging assembly is used for image processing and a part thereof is arranged in the working channel, and the display device is used to display images from the imaging assembly and images from the ultrasound probe. The medical device having a visual puncture apparatus of the present application can puncture to a lesion under direct vision, and the entire puncture process is visible. The details of the puncture path are intuitively reflected on the monitor like a camera, which is intuitive and real-time. The safety and accuracy of the conventional interventional puncture process is improved.

The invention relates to the technical field of digital twinning, in particular to a chemical fiber doffing machine traveling wheel diameter wear detection and maintenance strategy generation method, which comprises the following steps: collecting wheel diameter direct vision measurement data, indirect measurement data and working condition data; then constructing a geometric model, a physical model and a multi-source data fusion model, and inputting collected data for fusion processing to obtain an optimal wear estimation value; diagnosing a wear state based on the estimated value, and predicting a wear trend and residual life in combination with a physical model; and finally, generating an intelligent maintenance decision in combination with the production plan and visually displaying the decision. And executing maintenance operation and feeding back the data optimization model. Through multi-source data fusion and digital twin modeling, micron-sized wear detection, precise life prediction and maintenance decision of production adaptation are realized, the operation stability of equipment is improved, and the risk of production interruption is reduced.

The utility model discloses a disposable superfine minimally invasive electrotome which comprises an electrotome body, a superfine puncture needle sheath and a puncture needle, wherein the superfine puncture needle sheath and the puncture needle are used for assisting the electrotome body; wherein one end of the electrotome body is an electrotome head tip, the other end of the electrotome body is connected with a handle through an electrotome head interface part, and a wire connected with an electrocoagulation host is arranged on the handle. According to the superfine puncture needle disclosed by the utility model, an electrotome channel is established through the needle core and the needle sheath, so that surgical incisions are greatly reduced, surgical wounds are obviously reduced, and no obvious surgical scars exist after surgery; under the fixation of the superfine puncture needle sheath, the electrotome in the puncture needle sheath is more stable, so that the shaking of the electrotome is obviously reduced, and the possibility of secondary injury is reduced; the puncture needle is used for imbedding and follow-up operation under direct view, and is safe, reliable, simple to operate and easy to popularize; in the operation process, the puncture needle sheath can discharge smoke in the operation field through the needle sheath, if bleeding or seepage occurs in the operation field, the puncture needle sheath can be connected with negative pressure drainage to suck out liquid, the operation field is kept clear, and operation is convenient.

The invention relates to a device (100) for tracking elements that is configured to be manipulated by an operator and that comprises a foot (30), a body (20) and a head (10), the tracking device (100) comprising at least a first sensor and second sensor configured to measure the rotation of the body (20), the head (10) comprising a sighting device (11) and optionally a rangefinder (13), the tracking device (100) further comprising a processing unit (31) able to process the data generated by the first sensor and second sensor in order to calculate the three-dimensional coordinates of the sighted element of interest, the tracking device (100) further comprising a transmitting unit configured to transmit the three-dimensional coordinates calculated by the processing unit (31) to a control console.

A dual vision device designed to generate a second vision in addition to a direct vision of a user, independent of the direct vision and located in the upper part of the field of vision of the user. The dual vision device includes a display assembly carried by a support, the display assembly including two display units designed to generate the second vision in the upper part of the field of vision of the user, each display unit including an eyepiece and a screen chosen so that each display unit forms an image clearly viewable by a distinct eye of the user under the following conditions: the support is inclined so that the image formed by each display unit is viewable only in the upper part of the field of vision of the user when the user looks upwards, and the distance between the eyes of the user and the entrance of the eyepieces is greater than or equal to a predetermined distance, the predetermined distance being chosen so as to enable the insertion of glasses between the eyes of the user and the display unit.

A multifunctional resection mirror for prostate surgery comprises an endoscope electric resection ring assembly and a liquid inlet and outlet assembly, and the endoscope electric resection ring assembly comprises an endoscope body and a high-frequency electronic resection ring. An operating handle part for driving the high-frequency electronic excision ring to linearly move along the probe part of the endoscope body is arranged between the eyepiece part and the probe part of the endoscope body, the liquid inlet and outlet assembly comprises an inner shell tube rotationally arranged on the probe part of the endoscope body in a sleeving mode, and an outer shell tube is arranged outside the inner shell tube in a sleeving mode; the mounting base is provided with a first locking mechanism connected with the inner shell tube and a first locking mechanism used for rotating by 180 degrees, and through rotation of the inner shell tube, the enucleation surface of the sheath tip and the visual angle surface of the end part of the probe of the endoscope body are oppositely arranged so as to facilitate observation, so that when the prostate is enucleated, the whole process of an operation is performed under direct vision, and damage or perforation is prevented. The enucleation is completed by pushing and stripping the sheath tip, so that the pushing and cutting level and depth are easy to control, and bladder perforation is prevented.

A kind of tissue isolator instrument of liquid-filled component embedding in skin, including isolation balloon, liquid-filled structure and fixed structure, isolation balloon includes balloon body and connecting pipe;Liquid-filled structure includes port body, closure structure and connecting head;Port body has cavity inside, and the tail end of cavity is equipped with closure structure, such as puncture film or closed valve structure;Port body other end is provided with connecting head, and connecting head can be extended into and communicate with the connecting pipe of isolation balloon;Liquid-filled structure and connecting pipe are detachably connected;Fixed structure is arranged in the middle of port body, and is provided with suture hole on it, and the side of it facing skin is provided with adhesive layer, and is fixed on the surface of skin around incision by suture and adhesive.The above setting embeds and fixes the liquid-filled structure of the instrument on the surface of skin, and can be completed under direct vision balloon filling and discharging operation, greatly reduces the size of liquid-filled structure, reduces surgical incision and patient trauma;At the same time, it can avoid repeatedly cutting skin within a short time for implanting and removing balloon.