939results about "Restraining devices" patented technology

The invention relates to the field of medical instruments, in particular to an abduction assisting device for shoulder joints, which comprises a support, a support plate for bearing arms is hinged to the top of the support, and a driving mechanism, an adjusting mechanism, a fitting mechanism, a support mechanism and a locking mechanism are arranged on the support; the driving mechanism is used for driving the adjusting mechanism, the laminating mechanism and the supporting mechanism to operate synchronously; the adjusting mechanism is used for driving the supporting plate to rotate around the hinge point so as to adjust the abduction angle. The attaching mechanism comprises an air bag fixedly connected to the supporting plate, and the attaching mechanism is used for synchronously inflating or deflating when the angle is adjusted by the adjusting mechanism so as to be attached to the arm; the supporting mechanism is used for synchronously providing or releasing additional supporting force for the supporting plate when the adjusting mechanism adjusts the angle; the locking mechanism is used for locking the adjusting mechanism after angle adjustment is completed. The use process is simplified, the operation threshold is lowered, the rehabilitation preparation time can be saved, and the clinical use efficiency is improved.

The invention relates to the technical field of monitoring restraint, and particularly discloses an intensive care restraint device and a using method thereof.The intensive care restraint device comprises an abdomen restraint strap, the abdomen restraint strap surrounds the waist of a patient for binding, the abdomen restraint strap is sleeved with a binding strap, and the two sides of the binding strap are connected with connecting straps through adjusting buckles; shoulder restraint straps are arranged outside the binding strap in a crossed manner; the device further comprises a pressure sensor, the pressure sensor monitors the extrusion pressure change in real time and is used for judging the dysphoria degree of the patient, the pressure sensor is arranged at the intersection of the shoulder restraint strap to monitor the extrusion pressure change when the patient struggles in real time, and a motor in the control assembly is combined to drive a screw transmission mechanism to drive the patient to move. When the patient moves restlessly, the restraint strap is automatically tightened to prevent struggling off or accidental extubation; after the patient is calm, the patient is gradually relaxed and constrained, complications such as blood circulation disorder and pressure sores caused by long-term excessive constraint are effectively avoided, and medical safety and patient comfort are both considered.

A compression garment is disclosed. The garment can include a body dimensioned to wrap at least partially around a length of a torso of a user. A plurality of tension bands can be positioned along the body. The garment can include at least one shoulder strap, wherein the shoulder strap is operable to wrap over the shoulder of the user to hold the garment in position.

The invention relates to a self-adaptive knee joint protection method and device based on motion risk prediction. The method comprises the steps that knee joint motion data, environment data and gait data of a user are collected in real time through an embedded inertial measurement unit, a pressure sensor, a myoelectricity sensor and a depth camera; the environment data comprises a ground material, a gradient and illumination intensity; the gait data comprises stride frequency, stride and gait cycle; inputting the knee joint movement data, the environment data and the gait data into a knee joint movement risk prediction model, and predicting the knee joint movement risk of the user in a future period; when the knee joint movement risk exceeds a preset threshold value, the exoskeleton is controlled through the knee joint auxiliary equipment to adjust the flexion and extension damping and the movement range of the knee joint. According to the method, the motion intention is recognized through the risk prediction model, and real-time monitoring and personalized protection of the knee joint motion risk are achieved based on the variable stiffness execution mechanism of the shape memory alloy and the gait mode.

The invention relates to the field of medical instruments, in particular to a self-adaptive inflatable medical protection restraint system and a monitoring control method. The system comprises a restraint strap body, a pneumatic control module, a biological feedback module and a system control module. An air bag array consisting of a plurality of independent air chambers is arranged in the restraint strap body; the pneumatic control module is used for inflating and deflating each air chamber; the biological feedback module is integrated on the belt body, comprises a pressure sensing unit and a blood supply sensing unit, and is used for monitoring and constraining interface pressure and limb blood supply state in real time; and the system control module receives the monitoring data, generates an instruction based on a preset safety parameter, and drives the pneumatic control module to perform self-adaptive pressure adjustment on the specified air chamber. According to the system, through dynamic monitoring and accurate adjustment, the problem that a traditional restraining device is prone to causing compression injury and blood supply disorder is effectively solved, and safety and comfort are remarkably improved.

The application relates to the field of restraint devices, and discloses a self-adaptive intelligent restraint device, which comprises a restraint bed, the top of the restraint bed is sequentially provided with an ankle fixing ring, a thigh restraint ring, a waist and abdomen restraint ring, a wrist restraint ring and a shoulder restraint belt from left to right, the top of each of the four restraint rings and the restraint belt is provided with a fastening restraint belt with different sizes, the outer side of the restraint bed is provided with a detection mechanism, one end of the fastening restraint belt is provided with a quick connection mechanism, and the other end of the fastening restraint belt is provided with an adjusting mechanism. The patient pressure is accurately calculated through a strain gauge, the fastening of the restraint belt is automatically adjusted by a motor after comparison with a preset value, the safety, comfort and real-time performance of the restraint are ensured, in addition, the device is also integrated with a quick connection mechanism convenient for medical staff to operate and a function of sending an alarm to a nurses' station through Bluetooth when the patient is agitated.

The invention relates to the technical field of medical apparatus and instruments, and discloses an anti-falling infusion device for child nursing, comprising: an infusion seat, one side of which is provided with an infusion support for hanging an infusion bottle; the armrest block is mounted in the armrest area of the infusion seat and used for supporting the hand of the child patient; the finger limiting assembly is installed at the front end of the armrest block and used for limiting fingers of the child patient, and the finger limiting assembly can elastically stretch out and draw back in the length direction of the armrest block when subjected to external force; the protection assembly is mounted on the armrest block and used for covering the arms of the child patient to limit the movement range of the child patient. Through the synergistic effect of the finger ring piece, the elastic loading piece, the rod type elastic piece and the protection assembly, excessive movement of the hand of a child patient is limited, arm shaking is buffered, the needle falling risk is reduced, temperature adjustment in winter and summer is achieved through the detachable water bag piece, the comfort degree is improved, the abutting assembly and the finger limiting assembly are linked, an infusion tube is automatically locked, mistaken touch is prevented, and the safety of the child patient is improved. And the infusion safety and stability are enhanced.

The invention discloses a multi-modal sensing constraint monitoring system and a monitoring method.The system comprises a restraint strap, a medical clamping device, a gyroscope, a flexible tension sensor, an edge calculation module and a wireless transmission module, by integrating an acceleration sensor, the gyroscope and the flexible tension sensor, physical displacement and biomechanical changes are synchronously captured, and the monitoring accuracy is improved. And comprehensive monitoring of the constraint state is realized. Through the multi-mode sensing and edge computing technology, accurate monitoring and timely alarming can be achieved, and the risk of self-release of the patient is remarkably reduced. Dynamic adjustment of constraint tightness is achieved, and constraint conditions are optimized in real time according to the actual state of a patient.

The invention discloses a portable patient limb restraint device in the technical field of medical auxiliary instruments, the portable patient limb restraint device comprises a base, a bed body and a plurality of restraint straps, the bed body is mounted on the base, a plurality of buffer assemblies are distributed at the bottom of the bed body in a linear array mode, and the ends, close to the edge of the bed body, of the buffer assemblies are detachably connected with the restraint straps; a plurality of adjusting assemblies in one-to-one correspondence with the buffer assemblies are distributed on the surface of the bed body in a linear array manner; the buffering assembly is used for buffering and limiting the restraint strap based on the negative pressure and the elastic effect; the adjusting assemblies are used for lifting through movement of the corresponding buffering assemblies, and the supporting point positions of the corresponding restraint straps are changed. Through the negative pressure and elastic design of the buffering assembly, the pulling force generated by pulling the limbs of a patient can be effectively buffered, sudden increase of the compression force of the restraint strap is avoided, and skin injuries and blood circulation disorders are reduced; the adjusting assembly can flexibly adjust the restraint strap supporting point position according to the limb state of the patient, and restraint comfort and adaptability are improved.

The object of the invention is a cranial remodeling orthosis and a method of designing and producing the same. The cranial remodeling orthosis of the invention comprises an outer shell (1 ) and an inner shell (4), wherein the inner wall (2) of the outer shell defines an inner cavity (3) of the outer shell for insertion of the wearer's head, wherein the cranial remodeling orthosis further comprises an inner shell (4) that is removably connected to the outer shell (1 ), wherein the inner shell (4) defines a reduced inner cavity (5) for insertion of the wearer's head that has a smaller volume than the inner cavity (3) of the outer shell. The inner shell (4) is removably connected to the outer shell (1 ) in at least 2 different places distributed around the circumference of the inner shell (4).

The utility model discloses a clinical assistor for neurology department, which relates to the technical field of clinical auxiliary instruments, and comprises a bed board, the front part and the rear part of the lower end of the bed board are movably connected with a control adjusting component, and the left part of the bed board is movably connected with an auxiliary getting-up component. According to the clinical assist device for the neurology department, a patient lying flat on the bed board can be bound by controlling the adjusting assembly, the patient of the neurology department is always restless due to nerve problems, and the hard cloth and the hook-and-loop fasteners can control and bind the patients of different body types. Meanwhile, the two movable frames can movably adjust the position of the hard cloth, so that the hard cloth can be suitable for patients with different heights, and meanwhile, the hard cloth can be moved to the right part of the bed board when not in use, so that the situation that the patient gets in and out of the bed due to space occupation can be avoided. The lying patient can be helped to get up through the auxiliary getting-up assembly, the auxiliary plate which is turned rightwards provides supporting force for the back of the patient, and the patient can be helped to sit up and get out of bed.

The present invention provides a sling which has a vest base including an arm holder that supports the forearm in a desired weight distribution at a desired position and a first and second forearm support assembly which can be used to support the forearm offset from the wearer's body in higher degrees of abduction.

The utility model discloses a handheld stabilizing device for a Parkinson's disease patient. The handheld stabilizing device comprises a handle, a shell, a buffering piece, an adjusting mechanism, buffering rubber, a clamping mechanism and accessories. The front end of the handle is in threaded connection with the hollow shell, the buffering piece is movably connected in the shell, the adjusting mechanism is arranged at the front end of the buffering piece, the clamping mechanism is arranged at the tail end of the buffering piece, and the buffering rubber is arranged in the center of the buffering piece to connect the clamping mechanism and the adjusting mechanism. The adjusting mechanism comprises a knob, a sliding block, a square block, a cylinder and a spring; the sliding block is a triangular block, a square block is arranged at the bottom of the sliding block, a cylinder is arranged on the other side of the sliding block, and a hexagonal groove is formed in the front end face of the buffering piece and movably connected with the sliding block. Six sliding grooves are formed in the knob and movably connected with a sliding block through a cylinder, and a groove is formed in the cylinder at the rear end of the sliding block and movably connected with a spring.

The utility model discloses a multifunctional flatcar pad which comprises a pad body, pull rings are arranged on the outer walls of the two sides of the pad body, restraint straps are further arranged on the two sides of the pad body and located on one sides of the pull rings, positive and negative hook-and-loop fasteners are arranged on the upper side and the lower side of each restraint strap, and a tying strap is arranged at one end of each restraint strap. By means of the restraint straps and the hook-and-loop fasteners, when a patient lies above the cushion body in the using process, the patient can be wrapped through lap joint of the restraint straps on the two sides and bonding of the hook-and-loop fasteners, the simple positioning effect is achieved, the patient is prevented from laterally turning and falling off the cushion body, and meanwhile the restraint straps can be well prevented from falling off due to the arrangement of the tying straps.

The utility model relates to the technical field of medical treatment, and discloses a dressing change cart with an auxiliary functional component, which comprises a pushing block, the top end of the pushing block is fixedly connected with a medicine applying block, the top end of the medicine applying block is provided with a medicine applying groove, the inside of the medicine applying groove is provided with an arc binding block through a position moving mechanism, and the arc binding block is provided with an auxiliary functional component. An arc containing groove is formed in the top end of the medicine applying block, the arc constraint block is driven by the connecting rod to move, the constraint position is adjusted, the constraint position of a patient can be conveniently adjusted according to the wounded part of the patient, then the constraint belts get close to each other, and the constraint belts are fixed through the positive hook-and-loop fastener and the negative hook-and-loop fastener; fixing of the wounded part of the patient is completed, the phenomenon that the patient moves randomly during medicine applying is avoided, and the medicine applying efficiency on the patient is improved.

The invention discloses an intelligent early warning and braking device for unplanned extubation of a patient, and relates to the technical field of medical auxiliary equipment. The intelligent early warning and braking device for unplanned extubation of the patient comprises a bed body, side surrounding plates are fixedly connected to the two sides of the top of the bed body, inserting openings are fixedly connected to the inner sides of the outer surfaces of the side surrounding plates, fixing belts are inserted into the ends of the inserting openings, and tension sensors are embedded in the inserting openings; a detection restraint assembly is arranged at the top of the bed body, and a brake auxiliary assembly is arranged on the front face of the detection restraint assembly. According to the intelligent pre-warning and braking device for unplanned extubation of the patient, by arranging the detection constraint assembly, the pre-warning analysis assembly and the braking auxiliary assembly, automatic pre-warning and mechanical braking of the unplanned extubation behavior of the patient are achieved, the probability of misoperation is reduced, and the prevention effect on the unplanned extubation condition is improved.

The utility model discloses a shoulder restraint device for a dysphoria patient. Relates to the technical field of protective restraint, and comprises a main body bandage, shoulder lock catch assemblies used for restraining the shoulders of the dysphoria patient are arranged at the two ends of the main body bandage, side bandages are further arranged at the ends, away from the main body bandage, of the shoulder lock catch assemblies, and the ends, away from the shoulder lock catch assemblies, of the side bandages can be fixed by the side lock catch assemblies; the main body bandage is attached to the back of a dysphoria patient, the shoulder bandage penetrates into the shoulder lock catch shell, the shoulder bandage is fixed through the shoulder limiting clamping plate and the gear shaft so as to fix the shoulders of the patient, the side bandages on the two sides penetrate into the side lock catch shell, and the side bandages are fixed through the side limiting clamping plate so as to fix the shoulders of the patient. The protective restraint can be carried out on the patient; the device has the advantages of being simple in structure, convenient to use and high in reliability.

The utility model discloses a hip buckling limiting structure after transfemoral artery puncture intervention, and relates to the technical field of medical appliances, the hip buckling limiting structure comprises a pressing plate, the front end and the rear end of the bottom end of the pressing plate are connected with limiting belts in a glued mode, and a positioning block is arranged in the middle of the bottom end of the pressing plate in a downward extending mode. According to the hip flexion limiting structure used after the transfemoral artery puncture intervention, the limiting belt is bound to the skin of the proximal end of the thigh of a patient and the skin of the front end of the hip joint of the patient, the clamps help the bearing blocks to be clamped to the two sides or other places of clothes of the patient, and therefore the hip flexion limiting structure used after the transfemoral artery puncture intervention is convenient to use. The bearing block is clamped with the two ends of the limiting belt, so that the hip joint of the patient cannot fluctuate or be folded due to the pressing plate, and meanwhile, a certain pressure is applied to the surface of the hip joint of the patient by the positioning block.

This invention relates to the field of medical and nursing device technology, and in particular to a restraint-type distance-sensing anti-extubation alarm glove and its method of use. The glove includes a restraint glove with a fixing strap on one side of its surface. A magnet is fixedly connected to the top of the fixing strap, and a magnet is disposed within the inner cavity of the magnet. This invention combines physical restraint with intelligent early warning, catheter positioning, and catheter angle adjustment. Through a specially designed enclosed space on the right side of the restraint glove's inner cavity, the range of motion of the patient's ring and little fingers is physically restricted, effectively preventing the patient from pulling the tube by clenching their fist. Simultaneously, a distance monitoring system is constructed using positioning chips one, two, and three. When hand movements pose a risk, multiple alerts are provided through different colored lights, alarm sounds, and vibrations, offering comprehensive warnings to the patient and medical staff from auditory, visual, and tactile dimensions, allowing for timely measures to prevent extubation.

An integrated chest and arm restraint strap comprises a chest binding strap, the lower portion of the chest binding strap is connected with an auxiliary binding strap, the outer side of the auxiliary binding strap is connected with an annular arm limiting strap, the auxiliary binding strap is additionally arranged, the auxiliary binding strap can bind the abdomen of the body of a patient by means of the auxiliary binding strap, and therefore an extra fulcrum is provided for the annular arm limiting strap; therefore, when a patient accidentally moves arms, the stress of the chest binding belt can be shared by the auxiliary binding belt, so that the part, close to a wound part, of the chest binding belt is prevented from being excessively pulled, and the wound part of the patient is prevented from being excessively hurt.

The utility model provides a medical restraint glove which comprises a restraint assembly, the restraint assembly comprises a glove protection shell, a door body, a fixing ring body, a fixing mechanism, a silica gel ball, a plurality of first springs, a plurality of second springs and a plurality of duckbilled silica gel through pipes, the door body is arranged at one end of the fixing ring body, and the fixing mechanism is arranged at the other end of the fixing ring body. The fixing mechanism is arranged on the fixing ring body; under the action of the first spring and the second spring, the silica gel ball can be rebounded, when a user extrudes the silica gel ball with the hand, air in the cavity can be sprayed out through the air holes, air in the glove protection shell circulates, hand muscles are exercised, and when the hand of the user loosens from the silica gel ball, the user can feel comfortable and comfortable. The ejection potential energy of the first spring and the second spring drives the silica gel ball to return, the pressure in the cavity deforms, then external gas enters the cavity through the duckbilled silica gel through pipe, and the use safety and comfort are guaranteed.

This application discloses a head-mounted neck and shoulder restraint device, relating to the field of medical protective equipment technology. It includes a helmet, face protector, neck protector, and shoulder pads. The face protector is rotatably mounted on the front side of the helmet. The helmet, from the outside in, comprises a hard leather outer layer, an engineering mesh plastic shell middle layer, and a breathable sponge inner layer. The neck protector is fixed to the helmet and tightened with Velcro. The shoulder pads are located on both sides of the helmet and are equipped with straps. This application utilizes the helmet to cushion and protect the head of agitated mental patients who may bump their heads, preventing head injuries. Simultaneously, the face protector, neck protector, and shoulder pads prevent patients from biting themselves or others, thus effectively restraining the patient while protecting both the patient and others from harm.

A device for supporting at least one arm of a user, wherein: the device has at least one arm-supporting element comprising an arm shell for placing on the arm, at least one passive actuator which is configured to apply a force to the at least one arm-supporting element, and at least one counter bearing for the force to be applied, with at least one force transmission element and a counter bearing element; the arm-supporting element is connected to the force transmission element via an articulation so as to be pivotable about at least one pivot axis; the device additionally has at least one restraining element which limits a movement of the arm shell along the arm towards the hand when the device is worn, but does not affect a movement of the arm shell in the opposite direction; and the at least one restraining element is designed to be flexible but inelastic, and / or has at least one portion which extends in an axillary manner.

The utility model belongs to the technical field of medical instruments. The utility model discloses an anti-tube-drawing restraining device which comprises a limiting base. A plurality of limiting holes are formed in the limiting base at intervals in the length direction of the limiting base, and a fixing band structure which is matched with the corresponding limiting holes so as to stably limit the limiting base on the corresponding upper limb wrist of a patient is arranged on the limiting base; a protective sleeve winding drum is detachably arranged on the front side wall of the limiting base through a zipper, and the protective sleeve winding drum can wrap and cover the corresponding hand of the patient during working to effectively restrain the hand so as to prevent the patient from drawing the tube by himself. The utility model has the advantages that the air permeability is good, the discomfort of the patient is not easily caused, and the hand of the patient can be effectively restrained to prevent the patient from drawing the tube by himself.

The utility model relates to the technical field of restraining tools, in particular to an adjustable hand restraining tool. According to the technical scheme, the device comprises a containing pipe and further comprises an expansion pipe, the expansion pipe is installed on one side of the containing pipe in a sliding mode, the radius of the expansion pipe is larger than that of the containing pipe, part of the containing pipe is located in the expansion pipe, and a fixing wrist strap is fixedly installed on one side of the containing pipe. A locking mechanism for locking the fixing wrist strap is arranged in the fixing wrist strap, the locking mechanism is arranged in an installation cavity in the fixing wrist strap, a fixing rope is installed in the installation cavity in a sliding mode, and the two ends of the fixing rope are located outside the fixing wrist strap. According to the utility model, the movement space of the palm is flexibly adjusted, the comfort is improved, the occupied space in idle is reduced, and the maintenance is convenient.

The invention belongs to the technical field of nursing instruments, and discloses a body position restraint strap for operating room nursing, which comprises a first restraint strap, and further comprises a second restraint strap arranged at the bottom end of the first restraint strap; the inflating mechanism is arranged at the bottom end of the binding belt II; the inflation mechanism comprises a plastic shell fixedly connected to the bottom end of the second binding belt, and an air bag is arranged at the top end of the first binding belt. Air in the plastic shell can enter the air bag along the connecting pipe, the air bag expands along with the air entering the air bag, the size of the expanded air bag is remarkably increased, a soft and elastic protection layer is formed, the protection layer can effectively absorb and disperse part of kinetic energy when the human body struggles or moves, and therefore the kinetic energy of the human body can be effectively absorbed and dispersed. The impact force generated by the action is reduced, the direct friction between the skin and the binding belt I is reduced, and the pain caused by struggling of the patient is reduced.

The utility model relates to the technical field related to medical care, in particular to a nursing waistband for an ICU (intensive care unit), which comprises a waist support and a positioning mechanism, the positioning mechanism is arranged on one side of the surface of the waist support, and a bunching component is mounted on one side of the surface of the waist support. According to the nursing waistband for the ICU, through the arrangement of the positioning mechanism, when the body position of an ICU patient needs to be restrained, a display screen can be clicked to control the controller, and due to the fact that the four sets of air bags are symmetrically distributed, the appropriate air bags can be selected through the controller to be inflated according to needs, so that the air bags at the corresponding positions are bulged, and the nursing waistband for the ICU is convenient to use. When the air bags on the two sides are inflated, a patient can be restrained in a flat lying position, and when the air bag on the single side is inflated, the patient can be restrained in a side lying position, so that the situation that the patient cannot keep the same position for a long time, and illness rehabilitation is affected is avoided; at the moment, the dustproof cover can be opened for charging through the charging interface.

This invention discloses a device for protecting, monitoring, and treating neonatal omphalocele, and a method for using the device, relating to the field of neonatal omphalocele treatment technology. It includes a simulated human body and the omphalocele sac thereon, and further includes a first component. The first component includes an L-shaped plate, with an elastic band fixedly connected between two L-shaped plates. Through the coordinated design of the L-shaped plate, protective shell, and wire ring, the first component ensures stable device use. The L-shaped structure of the L-shaped plate overcomes the limitations of traditional planar support; its longitudinal plate can conform to the side of the neonatal torso, and its transverse plate can support the neonatal back and buttocks. This design can forcibly maintain the neonatal supine position, effectively preventing the neonatal voluntary or unconscious rollover, preventing friction between the omphalocele and the mattress or clothing during rollover, or traction and compression of the sac due to changes in body position, thus reducing the risk of sac rupture and tearing from the source.

The invention provides an orthopedic spinal post-operation protective device, which belongs to the medical field and comprises a lower hoop and an upper hoop, one end of each of the lower hoop and the upper hoop is rotatably connected with a connecting hoop, one side of each of the lower hoop and the upper hoop is provided with an inflatable bag, one end of each of the two inflatable bags is adhered to one side of each of the two connecting hoops, and the other end of each of the two inflatable bags is connected with the other side of each of the two connecting hoops. First inflation nozzles are fixedly installed on one sides of the two inflation bags correspondingly, and a plurality of first threaded holes are evenly formed in the top of the lower hoop sleeve and the bottom of the upper hoop sleeve. The upper arm fixing assemblies are arranged on the two sides of the upper hoop sleeve, after the protection device is worn on a patient, the upper arms of the patient can be fixed by means of the two upper arm fixing assemblies, the situation that the arms shake greatly and back skin and flesh are pulled when the patient carries out postoperative rehabilitation training is avoided, meanwhile, the upper arm fixing assemblies only fix the upper arms, and the operation is convenient. And the forearm can still normally perform various operations, such as holding various articles, so that the use is more convenient.

The utility model discloses a clinical fixing device for medical intensive care medicine, which comprises an arm fixing shell, the arm fixing shell adopts a square fixing tube shell structure and a hollow structure at the middle end, the upper surface of the arm fixing shell is provided with a curved concave surface, and the curved concave surface at the upper end of the arm fixing shell is provided with small ventilation holes. A circular hole is formed in the inner side surface of the lower end of the arm fixing shell, a convex circular shaft is clamped to the circular hole, a C-shaped mounting seat is fixedly connected to the lower surface of the convex circular shaft, a threaded hole is formed in the inner side surface of the lower end of the C-shaped mounting seat, and a threaded jackscrew is connected to the inner side surface of the threaded hole of the C-shaped mounting seat through threads; the arm fixing shell structure is adopted, the hollow structure is adopted, air holes are formed in the surface of the arm fixing shell structure, the arm is breathable after being fixed, the comfort degree is improved, the side face silica gel belt is used for clamping and fixing the arm, fixing is convenient, the bottom of the arm fixing shell is fixed to a table top through the rotatable C-shaped installation base, the angle can be adjusted, and installation is convenient and flexible.