19results about How to "Avoid radiation damage" patented technology

The invention provides a friction type needle withdrawing mechanism and a friction type needle withdrawing device for a sleeve type puncture needle, and belongs to the technical field of medical instruments. The needle pulling mechanism is used for adjusting the relative position of the inner tube and the outer tube, and the needle pulling mechanism drives the inner tube and the outer tube to slide relatively in a friction driving mode; when the needle pulling mechanism drives the inner tube and the outer tube to move relatively in a friction driving mode, one part of the needle pulling mechanism is tightly pressed with the inner tube or the outer tube, and the inner tube and the outer tube are driven to slide relatively through generated friction force. When the needle pulling mechanism adopts the friction driving mode, the needle pulling mechanism comprises non-array type friction driving or array type friction driving. The needle pulling mechanism provided by the invention can be tightly pressed with the inner tube or the outer tube, and the inner tube and the outer tube are driven to perform relative sliding motion through the generated friction force, so that the needle pulling operation is realized.

The invention discloses a long-acting anti-aging composition capable of quickly removing dark circles and application of the composition. The composition is prepared from the following components: beta-nicotinamide mononucleotide, glutathione, acetyl hexapeptide-8, acetyl tetrapeptide-5, snake venom-like peptide, arginine / lysine polypeptide, tocopheryl acetate and ergothioneine. According to the present invention, multiple functions are adopted, such that the effects of dark circle removing, repair, elasticity recovery, aging resistance and the like are provided so as to block the generation of dark circle, and the normal function of skin is ensured. The composition disclosed by the invention has the effect of quickly removing dark circles, and when the eye cream contains the composition, the eye cream can effectively remove the dark circles and has an obvious and quick effect within 15 minutes; after being used for a long time, the eye mask can remove dark circles and play a good control role.

The invention discloses a radiation-damage-resistant microscopic imaging system of a thick X-ray scintillator, which is characterized by comprising the scintillator used for absorbing X-rays penetrating through a sample and converting the X-rays into visible light; the reflective microscope objective is used for amplifying and imaging the luminous pattern of the scintillator to obtain primary imaging information of the sample and focusing the primary imaging information to the light field imaging module through an imaging lens; the light field imaging module is used for extracting light field information from the primary imaging information by using a light field imaging method to obtain secondary imaging of the sample and inputting the secondary imaging into the data processing module; and the data processing module is used for extracting light field information from the secondary image, resolving the extracted light field information through a light field reconstruction algorithm, and reconstructing to obtain a high-resolution image of the sample. According to the invention, the problems of high-efficiency fluorescence conversion coefficient and high spatial resolution of the high-energy X-ray are solved, and the light conversion efficiency of the high-energy X-ray is improved.

The invention relates to a magnetic control intervention guide wire robot based on mobile ultrasonic imaging, a pushing module is used for driving a magnetic guide wire to move, the magnetic guide wire is provided with a magnetic structure, the magnetic structure can deflect under the magnetic effect of a magnetic driving module, and the magnetic driving module is not in contact with the magnetic guide wire in the process. The ultrasonic tracking module can move along with the top end of the magnetic guide wire, and synchronous scanning imaging is carried out on the moving path of the magnetic guide wire in the process, so that a real-time ultrasonic image is obtained. The control terminal receives synchronous scanning imaging signals in real time and is in signal connection with the pushing module, the magnetic driving module and the ultrasonic tracking module, so that the pushing module, the magnetic driving module and the ultrasonic tracking module can be controlled to work normally. Compared with the prior art, the magnetic control intervention guide wire robot based on mobile ultrasonic imaging can achieve the purposes that an instrument can obtain accurate three-dimensional real-time positioning and automatic navigation, and radiation damage is avoided.

The invention provides an array type needle withdrawing mechanism and device for a sleeve type puncture needle, and belongs to the technical field of medical instruments. The array type needle pulling mechanism comprises a multi-channel selection type needle pulling driving mechanism, and the multi-channel selection type needle pulling driving mechanism drives the inner tube and the outer tube to relatively slide in one or combination of a push-pull driving mode and a clamping driving mode; a selective driving part is arranged on the multi-channel selective needle withdrawing driving mechanism, the selective driving part comprises a selective resisting part or a selective clamping part, and the selective resisting part can be controlled to selectively push a specified outer tube or inner tube; or the selective clamping part can be controlled to selectively clamp the specified outer pipe or inner pipe. The array type needle pulling mechanism can be controlled to selectively push or clamp the specified outer tube or inner tube and drive the inner tube and the outer tube to relatively slide, so that the needle pulling operation is realized.

The present application provides a facial nerve motion data capture system and method, the system comprising: a head stabilizing device, a focusing and lighting device, a designated camera and a seat; the seat is arranged below the head stabilizing device and cooperates with the head stabilizing device to provide a seat for a patient with facial paralysis; the designated camera is arranged directly in front of the seat and faces the seat; the focusing and lighting device is symmetrically arranged on the left and right sides of the designated camera and faces the seat; the head stabilizing device is used to provide support for the head position of the facial paralysis patient and calibrate the head position of the facial paralysis patient when the facial paralysis patient sits on the seat; the focusing and lighting device is used to adjust the shooting environment for the facial paralysis patient to a shooting environment that meets the target shooting requirements; the designated camera cooperates with the focusing and lighting device to record the facial nerve motion image of the facial paralysis patient when the head position of the facial paralysis patient and the shooting environment are calibrated.

The invention discloses a wristwatch type personal radiation monitor based on a plastic scintillator. The wristwatch type personal radiation monitor comprises a dial plate and a watchband, the scintillator is used for generating an optical signal when receiving radiation rays of the radiation source; the photomultiplier is used for converting the optical signal generated by the scintillator into an electric pulse signal; the radiation calculation module is used for calculating a corresponding radiation intensity value according to the electric pulse signal; the health data acquisition module is used for acquiring health condition data of the user; the historical radiation recording module is used for acquiring a historical radiation exposure condition of the user; the personalized threshold value generation module is used for generating a personalized alarm threshold value of the user according to the health condition data and the historical radiation exposure condition of the user; and the safety alarm module is used for comparing the radiation intensity value with an alarm threshold value, and sending out a safety alarm signal when the radiation intensity value exceeds the personalized alarm threshold value of the user. The health of the user can be protected, and the pertinence and flexibility of radiation monitoring are improved.

The utility model provides a novel pressurized injection device, and the syringe can be used for injecting pressurized liquid, the fixed seat is provided on the syringe control module, the movable seat is movably arranged on the syringe control module, the injection cylinder of syringe is fixedly arranged on the fixed seat, the piston rod of syringe is fixedly arranged on the movable seat, and the power source part of syringe control module controls the reciprocating movement of movable seat, thereby controlling the reciprocating movement of the piston rod of syringe, and further comprising detection module for detecting the push -and -pull of piston rod. The output port of syringe is connected with pressurized valve assembly control module, and the pressurized valve assembly control module comprises at least two output ports, the communication between the output port of syringe and different output ports is switched through pressurized valve assembly control module, the output or extraction of liquid from different output ports can be realized. The utility model can replace the doctor to execute balloon pressurization in radiation environment, and can make the complicated valve control and syringe bolus operation automation.

An anti-radiation shielding cover used for dismounting a built-in radioactive source relates to an anti-radiation shielding cover which is characterized in that a half clamp body A and a half clamp body B are oppositely arranged, a rotating ring A (7) and a rotating ring B (17) are rotationally connected to a rotating shaft (8) respectively to enable the half clamp body A and the half clamp body B to form an X-shaped structure, and a jaw formed by a clamp head A (2) and a clamp head B (4) is located above a through seam (1) in the center of the top of a cover body (3); an elastic locking structure is arranged between the end part of the handle A (9) and the end part of the handle B (10); the through seam penetrating through the top is formed in one side of the cover body, the tong head is arranged above the through seam located in the center of the top of the cover body, the cover body is connected to the outer portion of the reinforcing steel bar in a sleeved mode through the through seam, the cover body covers the opening portion of the source pipe, the reinforcing steel bar is clamped through the tong head, a radioactive source is effectively covered when a steel cable is disassembled, and the radioactive source can be effectively prevented from being damaged. And an operator is prevented from being hurt by radiation.

The invention relates to the technical field of medical instruments, in particular to a clinical radiation-proof shielding cover device for radiotherapy. Comprising a supporting table, a treatment box, a moving frame and a radiotherapy module, the treatment box is fixedly connected with the supporting table, the radiotherapy module comprises a driving part, a lead screw, a sleeve, a U-shaped frame, a radiotherapy device, two extrusion rings and a plurality of abutting springs, the driving part is arranged in the treatment box, one end of the lead screw is connected with the driving part, and the other end of the lead screw is rotatably connected with the treatment box; the sleeve is in threaded fit with the lead screw, the U-shaped frame is fixedly connected with the sleeve and located below the sleeve, the radiotherapy device is arranged on the inner wall of the U-shaped frame, the U-shaped frame is provided with two sliding grooves, the two extrusion rings are arranged in the corresponding sliding grooves respectively, and the two ends of each abutting spring are fixedly connected with the U-shaped frame and the corresponding extrusion ring respectively. Other healthy parts of a patient can be protected, radiation injury is prevented, and safety is improved.

The utility model belongs to the technical field of medical X-ray machines, and particularly relates to an X-ray machine protective cover which comprises a fixing frame, the bottom of the fixing frame is fixedly connected with a fence shielding cover, the inner side of the fence shielding cover and the inner side of the fixing frame are fixedly connected with shielding layers, the bottom of the fence shielding cover is horizontally bent outwards, and the bottom of the fence shielding cover is fixedly connected with the shielding layers. An edge pressing cover is fixedly connected to the surface of the part, bent outwards, of the fence shielding cover, and a plurality of counterweight pressing blocks are wrapped in the edge pressing cover; according to the X-ray film shielding device, a patient can be shielded by 360 degrees when the patient is irradiated with an X-ray film, other patients and medical staff in a ward can be prevented from being radiated, and therefore the other patients and the medical staff are prevented from being hurt by radiation, and the X-ray film shielding device is simple in structure, convenient to use and high in practicability.

The utility model discloses a concrete corrosion detection device which comprises a detachable telescopic vehicle-mounted support mechanism and a salinity detection assembly arranged on the vehicle-mounted support mechanism, the salinity detection assembly comprises a device shell, a neutron source moderation shielding structure integrated on the inner side of the device shell and a plurality of BGO detectors with multi-angle detection, the plurality of BGO detectors are symmetrically distributed on the outer side of the neutron source moderation shielding structure and are arranged at intervals with the neutron source moderation shielding structure. According to the detection device, the detection system is optimized, the BGO detectors are symmetrically distributed, multi-angle detection is achieved, and the detection sensitivity is improved. The neutron source moderation shielding structure is integrated, the neutron source assembly is arranged on the inner side, and the neutron source moderation unit and the reflective shielding absorption unit are arranged on the outer side, so that the direction and energy of emitted neutrons are controlled, interference of redundant gamma rays is reduced, the signal-to-noise ratio of the BGO detector is increased, and the accuracy of non-destructive detection of a to-be-detected object is improved.

The invention provides a needle withdrawing mechanism along with a tube and a needle withdrawing device, and belongs to the technical field of medical instruments. The tube-following needle pulling mechanism comprises a tube-following needle pulling transmission assembly and a tube-following needle pulling driving assembly, the tube-following needle pulling transmission assembly is arranged on the outer side of the outer tube or the inner tube, the tube-following needle pulling driving assembly is used for providing power for the tube-following needle pulling transmission assembly, and the tube-following needle pulling transmission assembly is used for driving the outer tube and the inner tube to move relatively. The relative movement modes comprise one or more combinations of a friction transmission mode, a meshing transmission mode, a direct push-pull transmission mode and a clamping transmission mode. The needle withdrawal accessory capable of relatively sliding and moving is adopted, the needle withdrawal action is reliable and safe during needle withdrawal, the problem that needle withdrawal is difficult is solved, manual needle withdrawal operation in a radiation environment can be replaced, full-automatic operation is achieved, the radiation risk is avoided, and the operation time is shortened.

The invention discloses a method for preparing a short-channel transistor by mechanically stacking electrodes, belongs to the technical field of transistor processing, and is used for solving the technical problems of economization of a short-channel electrode preparation method in the prior art and to further improve the performance of traditional transparent polypropylene resin. The method comprises the following steps of: preparing a plurality of electrodes on the surface of a substrate layer subjected to cleaning treatment by combining the preparation of modified polypropylene resin with the method for preparing the short-channel transistor by mechanically stacking the electrodes provided by the invention; the high transparency and scratch resistance of the modified polypropylene resin guarantee the accuracy of mechanical stacking, the excellent leveling performance, high temperature resistance and adhesion performance of the modified polypropylene resin guarantee the stability of the electrode structure in the transfer process, the preparation cost of the short-channel transistor is reduced through cooperation of the modified polypropylene resin and the electrode structure, and the accuracy of the short-channel transistor is improved.

The utility model relates to detection equipment technical field especially is a kind of geological prospecting rapid detection equipment, including X-ray fluorescence spectrometer and detection head, and the outer side fixedly connected with external block is installed in the inside of external block and is sealed and is protected component, and external block includes sleeve block, and the inside of sleeve block is equipped with guiding air hole, and the rear end fixedly connected with spring of guiding air hole, and sealed and protected component includes protective cover, and the inside of protective cover is equipped with air duct, and the rear end fixedly connected with double cylinder of protective cover, and the outside fixedly connected with first rubber seal ring of double cylinder, and the inside of double cylinder is equipped with intercommunication groove, and the front end fixedly connected with air bag ring of protective cover, and the inside fixedly connected with second rubber seal ring of protective cover, in the utility model, device can effectively prevent external light to enter instrument inside and X-ray fluorescence leakage, improve detection accuracy, prevent X-ray fluorescence from causing radiation injury to staff simultaneously, improve use safety.

The utility model belongs to the field of detection equipment, and provides a voltage-sharing electrode scaling degree detection device which comprises a machine body assembly, an electrical control unit, a human-computer interface, an X-ray source, an X-ray acquisition unit and a safety protection unit. The body assembly has a detection area. The human-computer interface is installed on the machine body assembly and electrically connected with the electrical control unit. The X-ray source is installed on the machine body assembly and arranged corresponding to the detection area, and the X-ray source is electrically connected with the electrical control unit through a signal line. The X-ray collecting unit is installed on the machine body assembly and electrically connected with the electrical control unit through a signal line. According to the voltage-sharing electrode scaling degree detection device, the scaling degree of the voltage-sharing electrode is automatically detected, the detection speed is high, the accuracy is high, convenience is achieved, manpower is saved, the X-ray source and the X-ray collection unit are wrapped by the safety protection unit, and safety is high.

The present invention relates to the field of nuclear industry technology, and in particular to a swing-door shielding container system for transporting radioactive objects and convenient for remote control maintenance; the swing-door shielding container system comprises a shielding container and a load-carrying transportation system, and the shielding container and the load-carrying transportation system are mechanically connected by a latch; the remote-controlled load-carrying transportation system of the present invention transfers the shielding container to realize the transportation and transfer of the radioactive objects, which not only avoids the radiation damage caused by the radioactive objects, but also ensures the personal safety of the remote operators, especially the shielding container and the load-carrying transportation system are split-type designs, the bottom load-carrying transportation system is in a fixed position, the shape and structure of the shielding container are arranged to be an independent container that is convenient for opening and closing the shielding door and convenient for remote control maintenance and hoisting, which can well store radioactive objects and is convenient for independent transportation, reducing the difficulty of remote operation; the shielding container is a swing-door type, which can provide the operation space of radioactive objects to the maximum extent.

The utility model provides a T pipe and ENBD pipe multipurpose adapter which comprises an infusion pump, an outlet portion at the right end of the infusion pump is communicated and provided with a water outlet pipe, the right end of the water outlet pipe is communicated and provided with a hollow conical column with the narrow left portion and the wide right portion, and the right end of the hollow conical column is communicated and provided with a hollow holding column. The right end of the hollow holding column is communicated with a stepped hollow column which is wide in left and narrow in right, the right end of the stepped hollow column is communicated with a hollow rod, and the hollow rod, the stepped hollow column, the hollow holding column and the hollow conical column are of an integrated structure. The infusion pump can be used for automatically pushing medicine, so that radiation injury to medicine pushing personnel is avoided, complaints are reduced, and the satisfaction degree of patients and family members of the patients is improved.

The utility model discloses a mobile green channel vehicle detector, and belongs to the technical field of highway green channel detection. Comprising a track and a truck. Wherein the track comprises a first track and a second track which are arranged in parallel, and a to-be-detected vehicle is located between the first track and the second track. The truck comprises a first truck linearly sliding on the first track and a second truck linearly sliding on the second track. An emission assembly is arranged on the first truck and used for emitting rays. A receiving assembly is arranged on the second truck and used for receiving the rays emitted by the emitting assembly. When the vehicle is detected, a worker controls the first truck and the second truck to move synchronously to drive the transmitting assembly and the receiving assembly to move synchronously, so that the vehicle is detected and scanned. A driver does not need to drive a vehicle for detection, and detection errors caused by different running speeds of detected vehicles are avoided.