14results about How to "Short operating time" patented technology

The invention relates to medical instruments, in particular to an osteochondral transplantation device and a transplantation method thereof. A first blade part structure is arranged on a first positioning part in the positioning assembly; the whole osteotomy assembly is of a hollow rod-shaped structure, two or more axial gaps are evenly distributed in an osteotomy part, the outer diameter of the osteotomy part is equal to the outer diameter of the first positioning part, the outer diameter of a main rod body of the osteotomy assembly is smaller than the outer diameter of the first positioning part, and the length of a third outwards-expanded straight blade is 1 / 3-1 / 2 of the length of the axial gaps; the inner aperture of the bone taking part is smaller than that of other parts; the inner aperture of the bone taking part is equal to the outer diameter of the first positioning part; an arc where the outer surface of the peripheral positioning clamp of the transplantation assembly is located is equal to the outer diameter of the main rod body of the transplantation assembly; the inner diameter of the transplantation assembly is larger than that of the bone taking assembly; the osteotomy assembly performs osteotomy operation; the residual cutting assembly carries out residual cutting treatment; the bone taking assembly is used for taking new bone cartilage; and the bone cartilage to be transplanted is placed in the inner hole of the transplanting assembly. The method is high in transplantation success rate, short in operation time and beneficial to health recovery of patients.

The embodiment of the present application provides a single-taken multiple liquid nitrogen tank storage and taking equipment, and relates to the field of biological sample bank sample storage and taking. The present application is aimed at improving the problems of easy inactivation, low efficiency and danger of biological samples in the existing frozen tube manual storage and taking process. The present application comprises a storage rack, a liquid nitrogen tank, a tube taking group and a transmission group. The storage rack is fixed in the liquid nitrogen tank, and the storage rack is provided with a plurality of first placing grooves. The tube taking group comprises a moving rack and a plurality of clamping jaws. The moving rack is provided with a plurality of second placing grooves. The transmission group is arranged on the liquid nitrogen tank, and the transmission group is connected with the moving rack. The transmission group is used for driving the moving rack to move, so that the moving rack moves into the storage rack and expands, or moves out of the storage rack and gathers. Through the expansion of the moving rack by moving downward, the tube taking group enters the storage rack, the moving rack expands rapidly in the storage rack, and the tube taking group cooperates with the storage rack to realize the accurate transfer of the frozen tube. The tube taking group does not need manual tube taking, the operation time is short, and the efficiency is greatly improved.

This invention provides a universal elastic torque loading device for electric servos. Through the cooperation of a worktable, servo mounting components, and a load-bearing component, it achieves automatic elastic torque loading of the electric servo. A dedicated adapter plate and adapter connector standardize the external mounting and output interfaces of the electric servo. The simple and quick engagement and disengagement of the dedicated adapter connector, adapter shaft, and load-bearing component enable the torque load output and transmission of the electric servo. This universal elastic torque loading device has a reasonable structure, short operation time, and improved work efficiency.

The utility model relates to a kind of intercommunication devices for femoral artery and brachial artery, belong to medical instrument technical field, solve the problem that guide wire needs to traverse two arterial blood vessels in prior art, and is inserted into sheath tube, and the problem of difficult operation.The utility model includes first access unit and second access unit, the first access unit includes first lead and first interconnection component, the second access unit includes second lead and second interconnection component, the first interconnection component is arranged at the end of the first lead, and the second interconnection component is arranged at the end of the second lead.The intercommunication device of the utility model does not need to operate guide wire to enter catheter / sheath tube cavity in blood vessel cavity, and it is simple to operate, short in operation time, and high in operation success rate.

The utility model belongs to the field of photovoltaic technology, and discloses a scraper device. Comprising a fixing frame, a crow plate mechanism and a plate separation mechanism, the plate separating mechanism and the crow plate mechanism are arranged on the fixing frame, the crow plate mechanism is arranged on the frame body on the side face of the main frame, and the crow plate mechanism is arranged in front of the plate separating mechanism. The scraper device can directly separate and scrape off the viscose plate and remove the viscose plate, the separation time is shortened, the scraper device is simple in structure and convenient to operate, stable separation can be achieved, abrasion is small during separation, the operation time is short, and the working efficiency is greatly improved.

The application discloses a kind of multi-master station synchronization method, device and storage medium, and multi-master station synchronization method includes the following steps: setting priority for each master station process;Preset master station generates time synchronization message and sends to network, when receiving master station receives time synchronization message, trigger hardware interrupt, receiving master station executes time synchronization task, receiving master station calculates time deviation according to time synchronization message, and adjusts local clock;Preset master station updates the data of shared data area, and sends data update notification to receiving master station;Receiving master station updates local data based on data update notification.This method is based on the preemption mechanism of hardware interrupt and operating system, gives the ability of stable execution of time synchronization task in complex system environment, in the face of complex situations such as high load, network fluctuation, time synchronization task can always acquire system resources preferentially, ensure the accuracy and continuity of time synchronization.

The invention relates to a method for preparing a nanofiltration membrane by using sodium p-styrenesulfonate as a water phase additive. Infiltrating the support membrane in a water phase solution containing sodium p-styrenesulfonate and piperazine so that the support membrane is fully infiltrated by the water phase solution; coating the surface of the membrane with the oil-phase solution, and carrying out interfacial polymerization reaction to form an aromatic polyamide separation layer; and placing the membrane in an oven at 70-90 DEG C for heat treatment to prepare the aromatic polyamide composite nanofiltration membrane. Sodium p-styrenesulfonate can reduce the interfacial tension of a water / oil phase in the interfacial polymerization process, promote diffusion and uniform distribution of piperazine, strengthen the interfacial polymerization reaction and improve the cross-linking degree of a separation layer. The aromatic polyamide composite nanofiltration membrane prepared by the method has the characteristics of high flux and high selectivity at the same time. The method has the advantages of being simple in preparation process, low in cost and easy to implement. In addition, reference can be provided for preparation of other high-performance interfacial polymerization nanofiltration membranes.

The utility model relates to the technical field of dental implant surgery, and discloses a minimally invasive dental implant surgery positioning auxiliary device which comprises a positioning measuring column, a guide hole is formed in the positioning measuring column and penetrates through the whole positioning measuring column, one side of the positioning measuring column is fixedly connected with a holding handle, and the other side of the positioning measuring column is fixedly connected with a positioning rod. The top of the positioning measuring column is provided with a buccal-lingual positioning ruler, the buccal-lingual positioning ruler and the positioning measuring column are movably installed, and the left end of the buccal-lingual positioning ruler is fixedly connected with a limiting rod. According to the utility model, by arranging the cheek-tongue direction positioning rule, the limiting rod and the like, under the combined action of CBCT, the positioning operation can be quickly carried out, and compared with the traditional implantation operation type'free hand ', the implantation site and direction of a dental implant are more accurate, the operation time is short, the postoperative reaction is small, the manufacturing cost of the device is not high, and the operation cost and the burden of a patient cannot be excessively increased.

The invention discloses a Mongolian horse semen cryoprotectant as well as a preparation method and application thereof, and belongs to the technical field of semen cryopreservation. The Mongolian horse semen freezing protection liquid comprises a dilution liquid I and a dilution liquid II, the preparation method specifically comprises the following steps: (1) preparing a basic diluent; (2) preparing centrifugal yolk liquid; (3) preparing a diluted liquid I; and (4) preparing a diluted liquid II. On the basis of an INRA82 basic formula, L-proline is added as an antioxidant, so that the oxidative stress resistance of sperms in the freezing process is improved, and the total activity and integrity of the frozen sperms are improved. The method is easy and convenient to operate, low in cost and suitable for Mongolian horse germplasm resource protection and large-scale propagation application.

The application discloses a device for shaping and hemostasis of an ovary wound surface in surgery, which comprises a mesh bag, a threading loop and a contraction and pressure wire, a plurality of threading loops are uniformly arranged on the contraction opening of the mesh bag, the contraction and pressure wire is wound around the bottom of the mesh bag, and then is respectively led to the two sides along the outer edge of the mesh bag, and is multi-pointly penetrated through the mesh bag wire double helix upwards, after the contraction and pressure wire reaches the edge of the contraction opening of the mesh bag, a section of the contraction and pressure wire is left after each winding half a turn along the threading loop on the contraction opening. The device can minimize the damage and function influence of the residual ovary tissue, and can obtain the shaping and hemostasis effect of the residual ovary tissue wound surface, and has the advantages of simple operation, safety and effectiveness and good hemostasis effect.

This invention discloses a universal method for preparing two-dimensional metal nanosheets via an in-situ electrochemical reduction process: first, metal tellurides or metal selenides are subjected to freeze-sonic liquid-phase exfoliation to obtain two-dimensional metal telluride nanosheets or two-dimensional metal selenide nanosheets; then, the two-dimensional metal telluride nanosheets or two-dimensional metal selenide nanosheets are reduced in an H-type electrolytic cell system to obtain the two-dimensional metal nanosheets. The preparation method of this invention is simple to operate, requires no complex equipment, and operates under mild conditions. The prepared two-dimensional metal nanosheets have broad prospects for applications such as the electrochemical C-N coupling synthesis of urea.

The utility model relates to the field of heat exchanger especially, it is a kind of heat exchanger convenient to overhaul, the heat exchanger body is equipped with the overhaul groove, the inner wall of overhaul groove is fixedly provided with backing plate, and the overhaul plate is installed on backing plate, and the multiple mounting columns are fixedly provided on the overhaul plate, and the through hole is adapted to be equipped with in the corresponding mounting column on backing plate;The end of mounting column is rotatably provided with limit piece, and the other end of mounting column is movably provided with pull plate, and the locking column for locking limit piece is fixedly provided on pull plate. In the utility model, limit piece is clamped on the inner wall of backing plate, and is locked with the locking of locking column, overhaul plate can be fixedly assembled in overhaul groove, and the dismounting mode of overhaul plate is shorter in operation time, and it is convenient for user to overhaul heat exchanger body.

The utility model discloses a workpiece disc changing system for double -sided grinder, including the bearing device for bearing processing disc, the feeding device for conveying workpiece, the unloading device for unloading workpiece on processing disc one by one to the feeding device on and the disc moving device for driving the movement of turn -table, and the disc loading device for arranging workpiece outputted by feeding device into row and loading into the turn -table in disc moving device is connected. The utility model has the advantages of improving production efficiency, simple control, low implementation cost and realization difficulty, simple debugging and maintenance etc.

The utility model relates to a double-station glass positioning device and automatic glass processing equipment, and solves the problems that in the existing full-automatic multifunctional glass processing equipment, the time for positioning glass by a positioning function module is long, a carrying device needs to wait for a period of time to carry new to-be-processed glass, and the working efficiency is high. The processing operation efficiency of the whole equipment is influenced. The positioning device comprises a first station positioning device and a second station positioning device. The full-automatic glass cutting machine is widely applied to full-automatic glass processing operation.