26results about How to "Prevent excessive compression" patented technology

The utility model discloses a cardiovascular intervention postoperative artery wound compression device, which relates to the technical field of wound compression devices and comprises a shell, two sides of the shell are movably connected with two sides of a bandage, an adjusting mechanism is arranged at the bottom of the shell and comprises a circular ring, and the inner side of the circular ring is slidably connected with the bottom of the shell. The inner side of the shell is slidably connected with a pressing block, the front portion and the rear portion of the pressing block are both fixedly connected with threaded blocks, the outer sides of the threaded blocks are in meshed connection with the inner side of a circular ring, the inner side of the top of the shell is rotationally connected with a rotating disc, the bottom of the inner side of the pressing block is fixedly connected with the bottom of a rack, and one side of the rack is in meshed connection with the front portion of a gear. One side of the gear is fixedly connected with a worm, the rear portion of the worm is connected with a worm gear in a meshed mode, through the adjusting structure, the effect that the compression pressure can be observed is achieved, and the problem that in a traditional wound compression device, the wound compression force cannot be accurately controlled according to the pulse pressure of a patient is solved.

The invention discloses a space dilator for an oral endoscopic thyroid surgery, and relates to the technical field of medical apparatus and instruments, the space dilator comprises an oral cavity internal dilation assembly, and under the cooperation of the oral cavity internal dilation assembly, a flexible guide tube and a magnetic rotating ring, under the cooperation of a miniature pressure integrated detection sensor, the oral cavity internal dilation assembly and the flexible guide tube are connected with the magnetic rotating ring; the pressure of the expansion adjusting assembly on the tissue is monitored in real time and automatically fed back so as to be used for adjusting the strength and avoiding excessive compression, the positioning navigation edge connecting piece ensures that the position of the edge connecting sliding soft bag is accurate, follow-up medical operation is facilitated, and the frequency and amplitude of ultrasonic waves generated by the micro ultrasonic generator are utilized so that the operation efficiency can be improved. The displacement magnetic lantern ring piece is controlled to drive the magnetic rotating ring to move outside the flexible guiding pipe, the expansion adjusting assembly is made to synchronously and sequentially make the size be adjusted in a sliding mode along the outer portion of the sleeve according to the size from large to small, the influence on a patient due to the inaccurate expansion position during space expansion is effectively reduced, and the patient experience is improved. And the operation requirements and comfort are met.

The invention relates to a fixing device for medical experiment animals, and belongs to the technical field of medical experiment instruments. In order to solve the problems that an existing restraining device for experimental animals is low in automation degree and causes compression during restraining, an operation table is arranged, a body restraining mechanism, four-limb restraining mechanisms and a buffering mechanism are arranged on the operation table, and the body restraining mechanism is arranged in the middle of the operation table and movably connected with the operation table; the four-limb restraining mechanisms are symmetrically arranged at the two ends of the body restraining mechanism in the length direction of the body restraining mechanism, and the buffering mechanism is located on the operation table and connected with the body restraining mechanism. The design of the elastic bandages and the binding belts is adopted, meanwhile, the buffering effect of the air bag cushion is matched, excessive compression or injury generated when the body and the four limbs of the experimental animal are restrained is effectively reduced, automatic operation is achieved through the driver, the driver is used for driving the adjusting plate to move downwards, and the operation is convenient. The body and the four limbs of the test animal can be restrained synchronously, and the restraining efficiency of the test animal is effectively improved.

The utility model discloses an anti-dropping trachea cannula, which is characterized in that the stable state of the trachea cannula is realized through the matching of all parts during an operation, the normal operation of an artificial airway is effectively maintained and guaranteed, the problems of outward movement, dropping, inward sliding and the like of the trachea cannula are avoided, the efficiency and the safety of the operation are improved, and the life safety of a patient is further guaranteed. According to the technical scheme, the device is characterized by comprising a pipe body, a limiting piece and a deformation piece, a connector is arranged at one end of the pipe body, an air outlet and a fixing air bag are arranged at the other end of the pipe body, the fixing air bag is connected with a filling connector through a branch pipe, a penetrating hole is formed in the middle of the limiting piece, and the limiting piece can be arranged at the position, close to the connector, of the pipe body in a sleeving mode. The limiting piece is detachably connected with the tube body, the trachea cannula is tightly wrapped on the inner side of the penetrating hole through the fastening assembly, and the deformation piece is arranged on the tube body and located at the position, corresponding to the inner side of teeth, of the tube body.

The invention discloses a prone position turning-over bed for critical patients, and relates to the technical field of medical sickbeds, the prone position turning-over bed comprises two baffles, and the bottoms of the two baffles are each provided with two supporting legs; through the arrangement of a first spring, a plurality of segmented racks, a plurality of spring columns, a plurality of L-shaped wedge-shaped blocks, a U-shaped fixing plate, an L-shaped fixing plate, a second wedge-shaped block, a second spring, a cross block, a locking shaft, a plurality of cross-shaped grooves, a limiting rod and two sliding blocks, the second bed plate is locked by abutting against the correspondingly extending L-shaped wedge-shaped blocks; therefore, a linkage motor can drive a second bed plate and a third bed plate to synchronously rotate by 90 degrees to turn a patient onto the third bed plate, and the corresponding linkage gears are matched to move until the corresponding segmented racks are disengaged, so that the third bed plate automatically stops moving, the patient is prevented from being extruded due to excessive movement, and the safety of the patient is ensured; manual adjustment is not needed, and operation is easy, convenient and fast.

The utility model relates to support technical field especially for a kind of surgical nursing bandaging support, including base, the rotatable plate is hingedly connected in base upper end, the support table is hingedly connected in rotatable plate one end, the fixed bandaging plate is fixed in support table upper end one side, the slide rail two is fixed in support table upper end both sides, the slide rail two surface is slidably equipped with slide, the sliding bandaging plate is fixed in slide upper end, flexible adjustment and strong adaptability: through the hinge connection of rotatable plate and base and the hinge connection of support table and rotatable plate, the rotation and adjustment of multiple angles can be realized, can adapt to the bandaging demand of different parts wound, especially suitable for joint or other active site wound, greatly improve the flexibility and application range of bandaging.

The utility model relates to paper printing technical field especially is a kind of web printing machine with paper cooling function, including base, in the utility model, by designing a kind of web printing machine with paper cooling function, utilize the device and set up first cooling roller and second cooling roller, directly contact type cooling is carried out to the paper after printing by internal circulation cooling water, cooperate fan cooling by electric telescopic link control, can effectively reduce paper surface temperature quickly, significantly improve ink solidification and paper setting effect, effectively prevent the problem of ink adhesion, paper deformation, by the second hydraulic cylinder driving bearing seat moves in sliding slot, the interval of second cooling roller and paper surface can be adjusted, it is convenient to adapt to the cooling demand of different thickness, different material paper, ensure that first cooling roller and second cooling roller and paper effective contact, avoid excessive oppression at the same time, improve the adaptability and uniformity of cooling.

This utility model discloses an intravenous infusion assistive device, belonging to the field of medical auxiliary device technology. It includes a control component and a tightening band. The control component houses a processor and a locking mechanism. A limiting groove is formed on the upper surface of the control component, and a connecting portion with a connecting slot is provided at one end of the bottom of the control component near the limiting groove. One end of the tightening band has a first plug that inserts into the connecting slot, and the other end has an L-shaped second plug. The horizontal section of the second plug is slidably disposed within the limiting groove and is controlled to lock or release by the locking mechanism. The extension section of the second plug extends downwards from the side of the control component to the bottom. The end of the tightening band connected to the second plug is fixed to a connecting post thereon. In the locked state, the bottom end of the extension section is adjacent to the connecting portion, and their bottom surfaces are coplanar. This device, by concentrating the connection points on the control component at the bottom and keeping them coplanar, shortens the length of the rigid section of the control component in the tightening path, improving wearing comfort and limb fit.

The invention discloses a thigh root intelligent adjusting distraction device capable of adapting to different crowds, which comprises a supporting mechanism, leg distraction mechanisms are fixedly connected to the left and right sides of the top of the supporting mechanism, and a perineum distraction mechanism is fixedly connected to the opposite sides of the two leg distraction mechanisms; the leg opening mechanism comprises a seat body, the rear side of the seat body is fixedly connected with a mounting frame, the inner wall of the seat body is rotatably connected with a first rotating arm, the top of the seat body is fixedly connected with a first self-locking motor, and an output shaft of the first self-locking motor is fixedly connected with the first rotating arm. The leg distraction device has the advantage of being high in applicability, and the problems that in the process that an existing distraction device distraction legs of a patient, only a limited angle adjusting function can be provided, and dynamic adjustment cannot be conducted according to actual conditions of the patient are solved.

The application discloses a scroll compressor dynamic and static disc structure, which comprises a dynamic disc and a static disc, the static disc is sleeved with the dynamic disc, and the static disc is above the dynamic disc; a top surface center of the static disc is provided with an exhaust port; a bottom surface of the dynamic disc is sequentially provided with a first lower scroll line, a first middle scroll line and a first upper scroll line from bottom to top, the thickness of the first lower scroll line, the first middle scroll line and the first upper scroll line is gradually reduced; a top surface of the static disc is sequentially provided with a second upper scroll line, a second middle scroll line and a second lower scroll line from top to bottom, the thickness of the second upper scroll line, the second middle scroll line and the second lower scroll line is gradually reduced; when the static disc is sleeved with the dynamic disc, a fourth spiral step edge of a lower end of the second middle scroll line is in abutment with a first spiral step edge of an upper end of the first lower scroll line and forms a lower compression cavity, a third spiral step edge of a lower end of the second upper scroll line is in abutment with a second spiral step edge of an upper end of the first middle scroll line and forms a middle compression cavity, and a lower surface of the static disc is in abutment with an upper end surface edge of the first upper scroll line and forms an upper compression cavity.

The invention discloses a disc spring hydraulic mechanism energy storage cylinder and system and a control method, and the energy storage cylinder comprises a cylinder body which internally comprises a cavity, a piston, a sealing ring and a high-pressure oil channel; the piston is movably arranged in the cavity; the cavity comprises a working cavity and a low-pressure cavity; one end of the working cavity is connected with the high-pressure oil channel, the other end of the working cavity is connected with the low-pressure cavity, and the diameter of the low-pressure cavity is larger than that of the working cavity. The sealing ring is arranged on the periphery of the piston and used for preventing high-pressure oil entering from the high-pressure oil channel from flowing into the low-pressure cavity when the sealing ring is located in the working cavity. The high-pressure oil channel is used for inputting high-pressure oil to push the piston to move towards the low-pressure cavity or outputting the high-pressure oil to enable the piston to move towards the direction away from the low-pressure cavity. And the low-pressure cavity is used for collecting high-pressure oil flowing out of the sealing ring when the sealing ring is separated from the working cavity. The low-pressure oil cavity with the diameter larger than that of the working cavity is formed in the energy storage cylinder, high-pressure oil inner leakage occurs at the position of the sealing ring, and energy storage of the energy storage cylinder is stopped.

The invention relates to the technical field of medical instruments, in particular to a limb restraining device for mental health treatment. The bearing component comprises a clamping plate and a placing plate fixedly connected to the top end of the clamping plate, a fixing ring used for restraining limbs is hinged to the placing plate, and a fixing assembly used for fixing the device to a mounting surface is arranged at the bottom end of the clamping plate; the locking assembly is arranged on one side of the placing plate and used for achieving detachable locking of the fixing ring and the placing plate; the limiting mechanism comprises a threaded cylinder integrally formed with the fixing ring, the arc-shaped limiting piece tightly abuts against the surface of the upper arm of the patient, so that the movement of the upper arm of the patient is restrained, meanwhile, the restraining mode that a spring A is matched with the arc-shaped limiting piece is adopted, and the limiting mechanism can be used for limiting the movement of the upper arm of the patient. On the premise that the upper arm of the patient is effectively restrained, a small activity space is still reserved, and excessive compression and extrusion of the arc-shaped limiting piece on muscles and blood vessels of the upper arm of the patient are avoided.

The utility model belongs to blood oxygen detection technical field discloses a disposable blood oxygen detection probe fixing device of many parts adaptation for fixing strip disposable blood oxygen detection probe on patient's forehead or finger, including annular elastic band ring, elastic band ring inside is equipped with first connecting part, disposable blood oxygen detection probe one side is equipped with second connecting part, first connecting part and second connecting part detachable connection, when disposable blood oxygen detection probe is placed in elastic band ring inside, and disposable blood oxygen detection probe and the center axis of annular ring of elastic band ring are placed in the same coaxial direction, elastic band ring is used for winding on patient's finger, and disposable blood oxygen detection probe is fixed on patient's finger, can according to actual need, selectively disposable blood oxygen detection probe is fixed on forehead or finger, improves the stability of disposable blood oxygen detection probe after fixing effectively, and it is convenient to change the fixed position between finger and forehead.

The invention discloses an armpit pad for relieving armpit nerve and blood vessel compression in the side lying operation process, and belongs to the field of medical instruments. Comprising a supporting block, a U-shaped groove is formed in the upper surface of the supporting block, storage grooves are symmetrically formed in the upper surface of the U-shaped groove, air bags are fixedly connected into the storage grooves, air inlet cavities are formed in the lower surfaces of the air bags, and an air control device is fixedly connected to the front surface of the supporting block; the ingenious design of the air control device is a bright spot, and the air control device plays a crucial role in relieving armpit nerve and blood vessel compression. The device is composed of a series of precise parts such as an air control cavity, a hollow round block and a rotary column in a cooperative mode, all the parts are well matched, and precise regulation and control of the air bag inflation and deflation process are jointly achieved. The control range of the air bag is accurately set between 5 cm and 8 cm, and in the range, the pressure borne by the armpit can be finely adjusted according to actual requirements.

The utility model discloses a pressing type pump valve stable in effect, and belongs to the field of pressing type pump valves, the pressing type pump valve comprises a valve body and a valve cover arranged on the top surface of the valve body, a fixing ring is fixedly connected in the valve cover, a linear bearing is fixedly connected in the fixing ring, a valve rod is movably inserted in the linear bearing in a penetrating mode, and the valve cover is fixedly connected with the valve rod. A lantern ring is fixedly connected to the outer portion of the valve rod, the arranged limiting mechanism is matched with the upper pressing type pump valve for use, the pressing force generated when the valve is opened can be adjusted and limited, the pressing force can be accurately controlled so as to meet the use requirements of different operators, the problem of small pressing force or excessive pressing is avoided, and the use safety of the pump valve is improved. By means of the structure, it is ensured that the pressing force and position are consistent every time, the opening degree of the valve can be kept consistent every time, meanwhile, workers do not need to conduct pressing operation for a long time, the stable pressing force is ensured, and then the stability of the flow or pressure when a medium passes through the valve is improved, and the using effect of the valve is improved.

The invention discloses a 3D printing wire rod drying box which comprises a shell part, a clamping part, a lining part and a dehumidification device, the shell part comprises a first shell part and a second shell part, and the first shell part and the second shell part are detachably combined with each other through the clamping part. The lining piece is rotatably arranged on the shell piece and can allow a supplementary wire rod to be wound on the lining piece, the dehumidification device is arranged in the shell piece and comprises a containing box, the containing box comprises a first box part, a second box part and a locking assembly, and the first box part and the second box part are combined with each other through the locking assembly. The locking assembly is located between the first shell part and the second shell part and abuts against the first shell part and the second shell part respectively so as to prevent the supplementary wire coil or the lining piece from being excessively pressed by the shell piece.

The utility model provides a fitting device for shoe processing, which relates to the field of shoe processing and comprises a support and a clamping plate, fitting components are fixedly connected to two sides of the support, a wrapping component is fixedly connected to the inner wall of each fitting component and comprises a plurality of cylinders, one end of each cylinder is fixedly connected to the clamping plate, and the other end of each cylinder is fixedly connected to the clamping plate. A spring is arranged in the cylinder, a sliding column is slidably connected to the interior of the cylinder, and the end, away from the cylinder, of the sliding column is fixedly connected with a clamping pad, so that the correct position of the shoe body in the machining process is ensured, uniform attachment to the vamp is achieved, and tight attachment between the vamp and the sole is ensured in the processing process of complex curves and radians; by means of the improvement, the overall structural strength and attractiveness of the shoes are remarkably improved, the reject ratio in production is reduced, and the requirement for high-quality shoe production can be met.

The utility model discloses a vehicle gas spring comprehensive test bench, comprising a comprehensive test bench main body, a movable plate slidably connected to the top of the front surface of the comprehensive test bench main body, and a bottom end plate fixedly connected to the bottom of the front surface of the comprehensive test bench main body. A plurality of fixing blocks are fixedly connected to the front side of the movable plate and the front side of the bottom end plate, the two fixing blocks arranged left and right are symmetrically arranged, and movable rods are arranged on the opposite sides of the two fixing blocks. According to the comprehensive test board for the vehicle gas spring, the distance between the upper clamping plate and the lower clamping plate is accurately adjusted through sliding of the movable rod in the groove of the fixed block in combination with driving of the driving motor and the external thread rotating rod, and the test board can flexibly adapt to gas springs of different sizes due to the design; the air spring clamping device can stably and reliably clamp an air spring with a large size or an air spring with a small size, so that test errors caused by improper clamping are avoided.

The utility model discloses an auxiliary fixator for minimally invasive V-face immovable bone surgery, and particularly relates to the field of auxiliary fixators for bone surgery, the auxiliary fixator comprises a device main body, and a forehead frame is movably connected right in front of the top of the device main body; the two sides of the forehead frame are fixedly connected with fixing belts, and the other sides of the fixing belts are fixedly connected with elastic binding belts. When the device is used, the device body serves as a core and is connected with the forehead frame, the fixing band, the elastic bandage and other components, all-directional fixing of the face is achieved, the forehead frame is located at the top and connected with the device body through the fixing band and the elastic bandage, stable supporting force is provided, and the V-shaped fixing frame is located at the bottom and fixedly connected with the device body. A powerful fixing structure is formed by a limiting connecting bolt and a lower fixing belt, the arc-shaped limiting pad and the breathable pad arranged on the lower fixing frame provide comfortable wearing experience, prevent excessive compression on the face and guarantee breathability, and the penetrating fixing block serves as an embedded fixing auxiliary structure to enhance the connecting strength between the V-shaped fixing frame and the device body.

According to the wafer adsorption device and the residual charge release method provided by the invention, the plurality of electrodes are embedded in the suction cup body, and the polarity and the voltage of each electrode are independently adjusted or the polarity and the voltage of the plurality of electrodes are synchronously adjusted by using the control unit, so that differential processing of different areas of a wafer is realized. The device independently controls the polarity and the voltage of each electrode or synchronously controls the polarity and the voltage of a plurality of electrodes, so that adsorption forces with different strengths can be provided according to the actual conditions (warping degree, surface characteristics and the like) of different areas of the wafer, and the different areas of the wafer can be uniformly and stably adsorbed on the electrostatic chuck. Besides, the differential processing optimizes the release process of the wafer, ensures that residual electrostatic charges in different areas of the back surface of the wafer can be effectively eliminated, effectively reduces the damage risk caused by electrostatic adsorption in the wafer moving and taking process, further improves the uniformity and reliability of wafer release, and improves the production yield.

The invention relates to the technical field of acupoint application, and particularly discloses a traditional Chinese and western medicine combined acupoint application device for adjuvant therapy of hypertension, which is technically characterized by comprising a main fixing part, a thermal therapy module, a binding belt and a main controller. The top of the main fixing piece is provided with a through groove and a first through hole, the thermal therapy module is slidably connected in the first through hole, and the bottom is connected with the pressure plate; binding belts are hinged to two sides of the back of the main fixing piece; the main controller is connected with the thermal therapy module through a power line. Second through holes and locking assemblies are arranged on the two sides of the front face of the main fixing piece, and binding belt locking is achieved through tooth part meshing. Firm fixation is achieved through the mechanical locking mechanism, and plaster is prevented from falling off; quick absorption of the medicine is promoted through a controllable heating system; and the application pressure is accurately controlled through the pressure adjusting mechanism. According to the device, traditional Chinese medicine acupoint application and the modern temperature control technology are organically combined, and the effect, convenience and comfort of hypertension adjuvant therapy are remarkably improved.

The application discloses a disc spring hydraulic mechanism energy storage cylinder, system and control method, wherein the energy storage cylinder comprises a cylinder body, the cylinder body comprises a cavity, a piston, a sealing ring and a high-pressure oil passage; the piston is movably arranged in the cavity; the cavity comprises a working chamber and a low-pressure chamber; one end of the working chamber is connected with the high-pressure oil passage, the other end of the working chamber is connected with the low-pressure chamber, and the diameter of the low-pressure chamber is larger than that of the working chamber; the sealing ring is arranged on the outer periphery of the piston and is used for isolating high-pressure oil flowing into the low-pressure chamber from the high-pressure oil passage when the sealing ring is in the working chamber; the high-pressure oil passage is used for inputting high-pressure oil to drive the piston to move towards the low-pressure chamber or outputting high-pressure oil to drive the piston to move away from the low-pressure chamber; and the low-pressure chamber is used for collecting high-pressure oil flowing out from the sealing ring when the sealing ring is separated from the working chamber. The application realizes the energy storage cylinder to stop storing energy by arranging the low-pressure oil chamber with a larger diameter than the working chamber in the energy storage cylinder and realizing high-pressure oil internal leakage at the sealing ring.

The ice belt comprises a containing bag, a containing cavity is formed in the containing bag, three sets of ice bags are embedded in the containing cavity, a sealing strip is arranged at an opening of the containing bag, a waterproof breathable piece is arranged on the back face of the containing bag, and the waterproof breathable piece is arranged on the back face of the containing bag. An adsorption piece is bonded to the position, corresponding to the waterproof breathable piece, of the back face of the containing bag, a first fixing belt is fixedly connected to one side of the containing bag, a movable hole is formed in the end, away from the containing bag, of the first fixing belt, and a pair of hook-and-loop fastener sticking faces is arranged on the front face of the first fixing belt; the side, away from the first fixing band, of the containing bag is fixedly connected with a second fixing band, and the end, away from the containing bag, of the back face of the second fixing band is fixedly connected with a hook face of a hook-and-loop fastener strip. And the use convenience and sanitation are improved.

This utility model discloses a cardiovascular monitoring watchband, relating to the field of cardiovascular monitoring technology. It includes a monitoring body with an insertion port on one side and a watchband on the other. Inside the monitoring body is a rotating shaft with gears outside. Inside the monitoring body is an air bladder with a first air chamber and a second air chamber at its bottom. When worn, the watchband is wrapped around the wrist and inserted into the insertion port. Rotating a knob drives the gears to tighten the watchband, achieving initial fixation. During tightening, the air bladder is compressed, triggering a pressure change in the air chambers. The compressed air chamber transfers gas to the second air chamber, causing the outer air bladder to inflate and press tightly against the wrist skin. This ensures no gap between the monitoring module and the pulse contact surface, solving the technical problem of traditional devices causing discomfort due to excessive tightness or affecting monitoring accuracy due to excessive looseness. It is suitable for long-term health monitoring scenarios.

This utility model proposes a dual shock absorption and stabilization control component for electric bicycles, including an upper connector and a main sleeve. The bottom end of the upper connector is fixedly connected to the main sleeve, and the bottom of the main sleeve is fixedly connected to a sleeve. An adjusting plate is threadedly connected to the outer surface of the main sleeve, and a spring is fixedly connected to the bottom of the adjusting plate. The advantages of this utility model are: improved safety through a safety structure design. A buffer is fixedly connected to the top of the safety device. During shock absorption, the piston moves upward inside the sleeve, compressing the spring. Simultaneously, the nitrogen gas inside the sleeve, channel, and external air cylinder is compressed, causing the safety device and buffer to move upward. The buffer abuts against the bottom end of the sleeve. The wave-shaped structure on the side of the buffer generates multi-directional deformation upon impact, dispersing over 90% of the axial stress, effectively damping and buffering the impact force, effectively preventing excessive nitrogen compression, and preventing the sleeve and external air cylinder from bursting, making it more secure and safer.