11results about How to "Avoid surgical risks" patented technology

The invention discloses an auxiliary device for armless disabled people, and relates to the technical field of brain-computer interfaces. In order to solve the problems that in the prior art, an invasive type and a semi-invasive type of existing wearable auxiliary devices for providing life assistance for people with upper limb disability need surgical operation, electrodes are implanted into the cerebral cortex, but the surgical risk is large, complications such as infection and bleeding are possibly caused, and long-term maintenance is needed after implantation; in order to solve the technical problems that a non-invasive interbrain interface is relatively small in risk, convenient to use, simple to operate, low in cost and relatively low in control precision, the technical scheme provided by the invention is as follows: the auxiliary system for the armless disabled person comprises a brain signal acquisition module for acquiring an electroencephalogram signal of a user in a non-invasive manner; the visual control module is used for collecting target object positioning information; and the main control module is used for generating grabbing action group signals according to the signals acquired by the brain signal acquisition module and the visual control module. The auxiliary grabbing device is suitable for being applied to auxiliary grabbing work of the arm-free handicapped.

The present invention discloses a pressure monitoring system for hysteroscopic surgery and an adaptive flow rate control method thereof, and relates to the technical field of hysteroscopic surgery pressure monitoring and flow rate control. By obtaining the internal pressure value of the uterine cavity and the pressure value of the infusion line, and based on the pressure of the infusion line, analyzing the influence of liquid flow resistance, dynamic viscosity, density and flow rate change on the pressure, an infusion line pressure dynamic compensation model is established to calculate the real pressure value of the infusion line, and compare it with the internal pressure value of the uterine cavity to obtain the pressure deviation index. If the deviation index exceeds the threshold, the excess value is calculated, and the abnormal classification is performed, the feedback level is set, and a PID control equation is constructed to adjust the flow rate of the infusion pump. Through the PID control equation, the flow rate of the infusion pump is adjusted in real time, and the adjusted uterine cavity pressure is monitored and fed back, thereby achieving accurate flow rate control and pressure regulation, and improving the safety of the operation.

The present invention discloses a femtosecond lens separation shovel with a U-shaped bending structure, which includes a handle and a separation shovel integrally formed with the handle; the separation shovel includes a linear portion, a U-shaped portion and an arc-shaped portion connected in sequence, the linear portion is coaxially connected to the handle, and the linear portion and the arc-shaped portion are smoothly connected to the two ends of the U-shaped portion respectively; the cross-sections of the linear portion, the U-shaped portion and the arc-shaped portion are all circular, and the cross-sectional diameter gradually decreases from the linear portion to the arc-shaped portion. The present invention uses a U-shaped portion with a U-shaped geometric transition structure to transition between the linear portion and the arc-shaped portion of the separation shovel, which can effectively avoid the linear end from contacting the cornea when the lens separation shovel enters the cornea, thereby stimulating the patient's corneal wound; and can expand the surgical operation space.

The utility model discloses a novel nasal introducer, and relates to the field of nasal cavity support introducers. The device comprises a sheathing canal, a pushing rod and a nasal cavity support, the pushing rod comprises a rod body, an electromagnetic suction plug is arranged at one end of the rod body, the pushing rod is arranged, the electromagnetic suction plug is arranged at the end of the pushing rod, the nasal cavity support is provided with a corresponding electromagnetic base and an electromagnetic suction groove, and through electromagnetic suction force, the electromagnetic suction plug is inserted into the electromagnetic base. The pushing rod can be firmly connected with the nasal cavity support together, stability and accuracy of the nasal cavity support in the operation or treatment process are guaranteed, when the pushing rod and the nasal cavity support need to be separated, medical staff do not need to close to the connecting position of the nasal cavity support and the pushing rod by hands to conduct manual separation like a traditional mode, and operation is convenient. At the moment, the push rod and the nasal cavity support can be separated remotely and noninvasively only through a button, the operation process is simplified through the separation mode, and the operation efficiency is improved.

The utility model provides an implant pushing system which comprises an implant and a pushing rod used for pushing the implant. The pushing rod is a hollow pipe, and the pushing rod is provided with a far-end pipe body located at the far end; a plurality of through groove groups are formed in the far-end tube body at intervals in the axial direction of the push rod; a dislocation angle is formed between every two adjacent through groove sets in the preset circumferential direction of the far-end tube body in the direction from the near end of the far-end tube body to the far end of the far-end tube body, and the dislocation angle ranges from 5 degrees to 85 degrees; according to the implant pushing system, the pushing delay phenomenon can be avoided, and the pushing stability of the implant pushing system is improved; in addition, the torsion performance of the far end of the pushing rod can be improved, the conveying in-place performance of the pushing rod can be improved, meanwhile, the situation that the far end of the pushing rod is broken when being subjected to large torsion force can be avoided, and the overall pushing stability of the implant pushing system is improved.

The utility model discloses endoscope operation data processing equipment based on artificial intelligence relates to medical instrument technical field, including mobile trolley, the four corners of mobile trolley bottom outer wall all are provided with the steering wheel, one side of mobile trolley is provided with mobile energy storage power supply, the top of mobile trolley is provided with keyboard placing table, the one side of keyboard placing table is provided with the pull -out slot, the inner wall slidingly connected of pull -out slot has mouse placing table, one side of mobile trolley top is provided with elevating system, mobile trolley is connected with high -definition video management mechanism through elevating system, high -definition video management mechanism includes medical touch -sensitive screen, the inside of medical touch -sensitive screen is provided with GPU data processor, the utility model alleviates the doctor burden, and the automatic help doctor realizes the video's editing and desensitization processing, through data model and pathological change mark, realizes the avoidance of operation risk, has improved operation quality.

The invention provides a perfusion and backflow device of a medical instrument, which comprises a shell, and a cavity for accommodating a perfusion and backflow assembly is formed in the shell; the perfusion backflow assembly comprises a perfusion tube, a liquid discharge tube, a perfusion tube connecting part and a liquid discharge tube connecting part, the far end of the perfusion tube is detachably connected with the perfusion tube connecting part, and / or the far end of the liquid discharge tube is detachably connected with the liquid discharge tube connecting part; the shell is detachable so that the infusion tube and / or the liquid drainage tube can be replaced conveniently. The shell and the internal elements of the device are detachable, and the shell is convenient for a user to find and replace damaged elements in time, so that the reliability of the device is improved, and the service life of the device is prolonged.

The present invention discloses an air injection valve and a puncture device using the same, comprising: a valve body, a valve core assembly arranged in the valve body, and a valve cover suitable for connecting to the valve body, the valve body having a hollow accommodating cavity, and the valve body being provided with an air inlet suitable for inflating the accommodating cavity, an exhaust port suitable for discharging the gas in the accommodating cavity, and an air outlet connected to the accommodating cavity and used for connecting the puncture device; the valve core assembly comprising a first sealing member suitable for blocking the exhaust port, a second sealing member suitable for blocking the air inlet, and an elastic member arranged between the first sealing member and the second sealing member; the valve cover is sealed and matched with the valve body, and the valve cover has a hollow through hole connected to the air inlet. The present invention can improve the convenience and safety of the operation of the air injection valve during the use of the puncture device.

The invention relates to the technical field of biological materials, in particular to a polydopamine coating as well as a preparation method and application thereof. According to the specific technical scheme, a dopamine solution and a hydrogen peroxide aqueous solution are mixed on the surface of a base material to be coated, and the polydopamine coating is generated. The prepared polydopamine coating can effectively improve the lower urinary symptoms such as pathological bladder mucous membrane barrier damage, erosion, bleeding, pain, frequent urination and urgent urination, mucous membrane repair is accelerated, and the life quality of a patient is improved. The technical scheme provided by the invention has a wide application prospect in the field of chemical cystitis treatment.

The present invention relates to a deep tissue suturing device, comprising a handle, a needle body and a needle tip. The handle is provided with a threading hole penetrating the handle along the length direction. A roller is rotatably installed in the handle, one side of the roller is exposed from the handle, and the other side is located in the threading hole. The needle body is arranged at the lower end of the handle and corresponds to the position of the threading hole. The needle tip is arranged at the lower end of the needle body. Both the needle body and the needle tip are hollow structures. The roller can deliver the suture thread entering the threading hole to the needle tip and pass it out. It can effectively solve the problem of the suture thread pulling the suture part during the deep tissue suturing process, prevent the secondary suturing operation caused by the suture thread falling off, and avoid the additional surgical risks caused by the suture needle falling into the body. It is flexible to use and can reduce the difficulty of suture operation and reduce the suture time.

The invention discloses a renal sympathetic nerve ablation system and a use method thereof, and relates to the technical field of renal sympathetic nerve ablation systems. The purpose of the present invention is to improve prevention and treatment of cardiovascular diseases; comprising an imaging module used for real-time and high-resolution imaging of renal arteries and surrounding tissues, and imaging modes comprise intravascular ultrasound and optical coherence tomography (OCT); the ablation algorithm module is used for monitoring a renal artery anatomical structure, sympathetic nerve distribution and temperature and pressure parameters in an ablation process based on an intelligent ablation algorithm; the monitoring module integrates various sensors and a data processing unit and monitors key parameters such as temperature, pressure and ablation depth in the ablation process in real time. Real-time and high-resolution imaging of the renal artery and surrounding tissues is achieved through intravascular ultrasound and optical coherence tomography (OCT) technologies, and it is guaranteed that medical staff clearly observe the anatomical structure of the renal artery and the position and angle of an ablation catheter.