50 results about "Fracture traction" patented technology

The invention relates to the technical field of fracture traction and reposition medical instruments, and in particular relates to a fracture traction device, used for fracture traction and reposition of an arm. The fracture traction device includes a traction platform, a fixing mechanism for fixing the arm of a patient, and a traction mechanism for applying traction on the arm of the patient. According to the fracture traction device, the fixing mechanism is used for fixing the arm of the patient, and cooperating with the traction mechanism for applying traction on the fracture part of the arm of the patient, so that difficulty during a traction process is reduced and traction time consumption is reduced; a universal structure is arranged on the traction mechanism of the fracture traction device, the traction direction or the traction angle can be randomly adjusted during the traction process, and the fixing position of the arm of the patient and the position of the traction device do not need to be adjusted; the fracture traction device provided by the invention is simple in structure, small in occupied space and applicable to using in small hospitals or homes.

The invention discloses an automatic traction and rotating reset device for a leg fracture. The automatic traction and rotating reset device comprises suckers, a base, a telescopic sleeve, a traction mechanism, a rotating reset mechanism, a tension sensor and a fixing foot plate. The suckers are fixed to the bottom of the base. The body reset mechanism is connected with the base through the square telescopic sleeve. The traction mechanism is a lead screw sliding table used reversely, and a motor is arranged at the tail end of the traction mechanism. The rotating reset mechanism is connected with a motor speed reducer. The output end of the rotating reset mechanism is provided with a connector universal for a traction table. The rotating reset mechanism is connected with the tension sensor and the fixing foot plate into a string through the connector universal for the traction bed. The rotating reset device can finish traction and rotating reset of the leg fracture and gets ready for other operation in surgery; the magnitude of drag force can be fed back, and excessive drag is avoided; the traction and reset effect can be kept, and repeated operation is avoided; traction and rotation are quantified, and reference is provided by a reset method for fracture traction operation; the device is suitable for a common steel traction table, and equipment transformation is simplified.

The invention discloses a fracture traction fixator capable of carrying out fracture traction fixation and rapid reduction simultaneously, and belongs to the technical field of orthopedic operative instruments. The fracture traction fixator is used for completing rapid reduction when carrying out fracture traction fixation. According to the technical scheme, a length-adjustable screw sleeve is arranged in the middle of a traction rod, the upper ends of two fixation rods are detachably and perpendicularly connected with the two ends of the traction rod respectively, the lower ends of the two fixation rods are universally connected with the upper portions of fixation collets respectively, and the lower portions of the two fixation collets are fixedly connected with bone fixation portions at the two ends of a fracture portion respectively. According to the fracture traction fixator, the fracture portion can be made to move towards the two ends by adjusting the length of the traction rod, and thus the overlap displacement of the fracture portion can be corrected; the rotation displacement of the fracture portion can be corrected by rotating the fixation collets; the traction rod, the fixation rods and the fixation collects are fast and convenient to connect, reduction and fixation can be simultaneously carried out, the effect of instant stabilization can be achieved, operative time is shortened, and the fracture traction fixator is especially beneficial to operations in emergencies.

The invention provides a movable bone traction device. The movable bone traction device comprises Kirschner wires, fixed clamping plates and limiting mechanisms; the two Kirschner wires are arranged and are named as a first Kirschner wire and a second Kirschner wire respectively; the two fixed clamping plates are arranged and are named as a first fixed clamping plate and a second fixed clamping plate respectively; a plurality of Kirschner wire supporting holes are formed in the first fixed clamping plate and the second fixed clamping plate; the four limiting mechanisms are arranged. When the movable bone traction device is used, the two ends of the first Kirschner wire and the second Kirschner wire penetrate through the Kirschner wire supporting holes formed in the first fixed clamping plate and the second fixed clamping plate respectively to stretch out; the four limiting mechanisms are arranged at two ends of the first Kirschner wire and the second Kirschner wire respectively, and are in contact with outer side surfaces of the first fixed clamping plate and the second fixed clamping plate respectively. By adopting the device provided by the invention, the aim of fracture traction and stretching can be realized, and a patient can more freely to a certain extent; complications of bedsores, deep venous thrombosis and the like, caused by the fact that the patient lies on a sickbed for long time, are avoided, and the treatment effect is improved.

The invention relates to the technical field of medical instruments for fracture traction restoration, in particular to a hand clamping mechanism. The hand clamping mechanism comprises a T-shaped main fixing plate; the main fixing plate comprises a horizontal part, a longitudinal part, a first fixing plate, a second fixing plate, two symmetrical four-finger clamping part with a cavity for accommodating four fingers; the first fixing plate and the second fixing plate which are symmetrically arranged on the left side and the right side of the horizontal part; and the inner surface of a cavity of a thumb clamping part and the inner surface of the cavity of the four-finger clamping part are provided with flexible compressible layer for providing an interface with high fiction between the mechanism and skin of a patient. The hand clamping mechanism is specially used for thumb fracture traction restoration treatment, can respectively clamp the thumb and the other four fingers and provide different intensities of traction for the thumb and the other four fingers, and the clamping force of the hand clamping mechanism can be adjusted according to the traction force.

The invention belongs to the technical field of medical care, and discloses a movable traction bed for a lower limb fracture of a child and a control method of the traction bed. The method comprises the following steps: a fracture traction direction is adjusted according to different fracture sites, a first traction rope and a second traction rope are hung on spring scales and pass through horizontal PVC pipe holes, the first traction rope and the second traction rope are pulled to lift a bearing platform away from a bottom plate, wherein in the adjustment of the fracture traction direction, fracture traction force values are displayed in real time through the spring scales. The movable traction bed for the lower limb fracture of the child provided by the invention has the advantages of asmall size, convenient movement, simple nursing and convenient re-hospitalization check; the hospital stay time is shortened, parents of the child can return to work as soon as possible, the family pressure is reduced, the medical costs are reduced, and the family happiness is increased; and when the movable traction bed for the lower limb fracture of the child is used, fracture traction directioncan be adjusted according to the different fracture sites, and the movable traction bed can fully meet the needs of traction treatment of fractures at corresponding sites.

The invention relates to the technical field of fracture traction restorers, in particular to a heel restorer. The restorer comprises a lantern ring and a plurality of air bags fixedly connected to the inner wall of the lantern ring, the air bags are arranged in the axis direction of the lantern ring, and an air supply piece communicating with the air bags is fixedly connected to the lantern ring;and one end of the lantern ring is slidably connected to a sliding piece in the axial direction of the lantern ring, the sliding piece is connected to a transverse fixing mechanism and a longitudinalfixing mechanism, and the fixing directions of the transverse fixing mechanism and the vertical fixing mechanism are perpendicular to each other. Before calcaneus is restored, the air bags are used for fixing a leg of a patient, then the transverse fixing mechanism and the longitudinal fixing mechanism are used for restoring the calcaneus, and the problem that in the prior art, the calcaneus fracture cannot be restored conveniently, accurately and rapidly is solved.

The invention discloses a fracture tractive reduction device, which comprises an active adjusting mechanism and a passive adjusting mechanism. The adjusting ends of the two adjusting mechanisms are fixedly fitted with a first Kirschner wire and a second Kirschner wire respectively; the first Kirschner wire and the second Kirschner wire are fixed at the distal end and proximal end of a fracture site respectively; the distal end and proximal end of the fracture site are matched and butted by adjusting the first Kirschner wire and the second Kirschner wire through the active adjusting mechanism and / or the passive adjusting mechanism respectively; The movement and the angle adjustment are performed so that the positions of sutures at the distal end and proximal end of fracture correspond to each other, and therefore, push reduction butting and fixation are achieved. The adjusting mode is simple and easy to learn, the precision is very high, the operation difficulty and the butting inaccuracy are reduced, the fracture tractive reduction device is suitable doctors at various levels to operate and use after simple training, and a basis is provided for standardized operation of fracture positioning.

The invention discloses a fracture traction reduction device, which includes an active adjustment mechanism and a passive adjustment mechanism. The adjustment ends of the two adjustment mechanisms arerespectively fixedly installed with a Kirschner wire 1 and a Kirschner wire 2, and Kirschner wire 1 and the Kirschner wire 2 are respectively fixed at a distal end and a proximal end to a fracture site, the Kirschner wire 1 and the Kirschner wire 2 are respectively adjusted through the active adjustment mechanism and / or the passive adjustment mechanism to match for butt joint with the distal andproximal ends of the fracture site. The movement and angle adjustment make the fractures at the distal and proximal ends of the fracture site to be corresponded, and then the reset butt joint and fixation can be realized. An adjustment method of the invention is simple and easy to learn, the accuracy is very high, and the difficulty and inaccuracy of the operation are reduced. After simple training, the device is suitable for doctors at all levels to use, and also provides a basis for standardized operation of fracture positioning.

The invention discloses a cotton-padded mattress with the fumigation therapy function, which has the benefits that the problem that various skin diseases of patients are induced due to various breeding germs caused by gathering of dirty air in the mattress environment is avoided, and the traditional Chinese medicine fumigation therapy is performed at the same time; the pharmaceutical effect is increased by giving medicine to skins, and the toxic action of drugs entering systemic circulation on livers, kidneys and the like is reduced. The cotton-padded mattress mainly comprises air supply slim tubes (1), air extraction slim tubes (2), an air supply mother tube (3), an air extraction mother tube (4), a traditional Chinese medicine pot (5), an air blower (6) and a draft fan (7); the cotton-padded mattress can be applied to paralyzed patients, coma patients, patient subjected to major operation and fracture traction, severely burned (frostbitten) patients and the like, critical patients and patients subjected to end-stage diseases, and suitable for hospitals, nursing homes and home sick beds.

The invention discloses a fracture traction reduction guiding device of a long bone. The device comprises a driving mechanical arm, a driven mechanical arm, a photoelectric tracer, an end effector, a trolley, a tracking mark component and a spatial point acquisition unit. The tracking mark component is installed on the fracture position of the long bone. The spatial point acquisition unit is held by a doctor. A prop A of the driving mechanical arm and a prop B of the driven mechanical arm are installed on the upper panel of the shell of the trolley respectively. The photoelectric tracer is installed on the end cover of a rocker A of the driving mechanical arm. The end effector is installed on the end cover of a rocker B of the driven mechanical arm. A computer system is arranged in the wagon box of the trolley. The driving mechanical arm has the same structure with the driven mechanical arm. The fracture traction resetting guiding device of the long bone can assist the doctor to finish the reduction operation of 3D geometry of a wounded limb and the mechanical arm is used for fixing the distant end of the wounded limb to improve the accuracy of reduction and to reduce the radiation of X-ray. The tracking mark component is arranged on the fractured bone that needs to be operated, so the position of a characteristic point marked by the tracking mark component is easier to be tracked by the photoelectric tracer.

The invention relates to a multifunctional fracture traction reduction frame and effectively solves the problems of difficulty in reduction, poor effect, long time and great pain of manual traction. The upper ends of left and right struts on a supporting body of a first frame body are bent inwards; the left and right struts are arranged in an upper sleeve body; left and right sleeve bodies on the left and right struts are provided with first cylinders; second cylinders are arranged at the lower parts of left and right frame bodies at both ends of a U-shaped connecting body of a second frame body; the upper parts of the left and right frame bodies are arranged at both ends of a U-shaped supporting rod; a ring-shaped sleeve is arranged at the lower end of a rubber belt on the U-shaped supporting rod; left and right connecting rods inside both ends of the U-shaped connecting body are arranged at both ends of a semilunar ring body; the corresponding end faces of the first cylinders and the second cylinders are meshed; the second frame body is arranged inside the upper part of the first frame body; bolt bars at the centers of the second cylinders extend out of the first cylinders to connect and fix the first frame body and the second frame body. The multifunctional fracture traction reduction frame has a simple structure, is convenient to use, changes manual traction into mechanical traction, enables one person to complete reduction of a fracture position, saves labor, has short time, enables a patient to suffer from little pain, and has good effects.

The invention relates to the technical field of medical auxiliary instruments, in particular to a tibiofibula fracture traction repositor. The tibiofibula fracture traction repositor comprises a proximal support frame, a distal support frame, a tibiofibula traction frame, a tibiofibula angle adjusting mechanism, a tibiofibula traction adjusting mechanism, a sole fixing bracket and a thigh fixing support plate; the proximal support frame and the distal support frame are provided with the tibiofibula traction frame adjustable in angle; and the left end of the tibiofibula traction frame is hinged to the upper end of the proximal support frame. According to the tibiofibula fracture traction repositor, manual labor is saved; a traction effect on a broken tibiofibula bone can be stably maintained for a long time by mechanical traction, and human intervention is eliminated, and thus a doctor can better conveniently analyze a fracture surface and realize good butt joint treatment of broken ends; and secondly, vision is not limited; meanwhile, an operation space is reserved at each of the front side and the rear side of a shank of a patient, so that a doctor can conduct treatment conveniently, the operation difficulty is greatly lowered, and the treatment efficiency of reposition and operation is improved.

A robot working platform for body position placement, traction, reduction and operation belongs to medical instruments, a plurality of fixing holes are arranged on a surface plate of the robot working platform, fixing piles and limb brackets are respectively inserted in the fixing holes, the surface plate is mounted in a track frame, a track is arranged on the periphery of the track frame, and the fixing piles and the limb brackets are fixed on the track frame. A robot arm capable of sliding along the track is installed in the track and connected with the traction support. The robot arm has the advantages that the robot arm slides on the rail around the surface plate, and the robot arm, the surface plate, the fixing pile, the limb bracket and the traction support jointly complete body position placement, fracture traction, displacement reduction and surgical operation. The fixing pile and the limb bracket can be freely adjusted according to the operation requirement and the specific conditions of the body position and the body shape of a patient, and the body position placing, traction, reduction and operation can be completed at the same time. The surface plate is directly mounted on the operating bed, mounting operation is simple, equipment cost is reduced, operation workload is reduced, and a robot operation working basis is provided.

Disclosed is a disposable fracture traction repositor. The repositor comprises two T-shaped bone traction needles, a telescopic rod, two telescopic rod sleeves and two seal caps. Each of the T-shaped bone traction needles comprises cross rods and a vertical rod, and external threads are formed on the surfaces of the outer ends of the vertical rods. A manual rotation handle is arranged in the middle of the telescopic rod, and external threads are formed on the outer surfaces of the two ends. internal threads matched with the external threads on the telescopic rod are formed on the inner surfaces of the lower portions of the telescopic rod sleeves, three tooth grooves are formed in the top ends of each telescopic rod sleeve, and the two telescopic rod sleeves are in threaded connection with the outsides of the two ends of the telescopic rod symmetrically. Internal threads are formed on the inner surfaces of the seal caps, and the two seal caps are in threaded connection with the outsides of the top ends of two telescopic rod sleeves. The repositor has the advantages that fracture reduction in the surgery can be simplified; a traction bed or manual traction can be replaced; 5-axis linkage enables fracture reduction is accurate; the traction reduction can be operated easily through mechanics and biomechanics; the repositor is reasonable in structural design, safe and reliable and easy to operate.

The invention discloses integrated gypsum fixing equipment with an auxiliary fracture reduction function. The integrated gypsum fixing equipment comprises a supporting device capable of accommodatingfour limbs of a patient; a fixing part for limiting forearms or shanks is arranged on one side of the supporting device, and a traction device for dragging hands or feet is arranged on the other sideof the supporting device; the traction device comprises a telescopic mechanism moving front and back in the long side direction of the supporting device and a functional position recovery plate assembly moving along with the telescopic mechanism; the fixing part comprises a first limiting piece for limiting the movement of an elbow or a knee and a second limiting piece arranged at a wrist or an ankle; at least one first sliding groove in the forearm or shank direction is formed between the first limiting piece and the second limiting piece; and an auxiliary reset assembly capable of moving along the first sliding groove is installed on the first sliding groove. According to the technical scheme, gypsum is automatically beaten through a machine, and the experience difference is reduced; andduring fracture traction, the dislocated bone can move or slide along with the direction of muscle soft tissue by extruding the bonesetting and vibrating, so that fracture reduction is facilitated.

The invention provides a shank fracture traction reduction frame. The shank fracture traction reduction frame comprises a base, the central portion of the base is provided with a telescopic shank supporting frame, the top end of the shank supporting frame is provided with a shank support of a square frame structure, and the shank support is wrapped by leather; the two summits at the same side of the shank support are each hinged to a thigh solid support rod, the ends, which are away from the direction of the shank support, of the two thigh solid support rods are inserted into thigh hollow support rods, and the rod walls of the thigh hollow support rods are provided with threaded openings cooperating with screws for fastening the thigh solid support rods; the ends, which are away from the direction of the thigh solid support rods, of the two thigh hollow support rods are respectively hinged to the two summits at the same side of the base; the central portion of the base is also provided with a telescopic blocking supporting frame, and the top end of the blocking supporting frame is provided with a blocking rod; and the side, which is away from the direction of the thigh hollow support rods, of the base is provided with a telescopic traction support rod, and the top end of the traction support rod is provided with a crank screw rod. According to the invention, the shank fracture traction reduction frame is convenient to use, reduces wounds, saves operation time, increases the bone healing rate, reduces the pains of patients, and facilitates recovery of the patients.

The invention relates to the technical field of medical instruments for fracture traction restoration, in particular to a hand clamping mechanism. The hand clamping mechanism comprises a T-shaped main fixing plate; the main fixing plate comprises a horizontal part, a longitudinal part, a first fixing plate, a second fixing plate, two symmetrical four-finger clamping part with a cavity for accommodating four fingers; the first fixing plate and the second fixing plate which are symmetrically arranged on the left side and the right side of the horizontal part; and the inner surface of a cavity of a thumb clamping part and the inner surface of the cavity of the four-finger clamping part are provided with flexible compressible layer for providing an interface with high fiction between the mechanism and skin of a patient. The hand clamping mechanism is specially used for thumb fracture traction restoration treatment, can respectively clamp the thumb and the other four fingers and provide different intensities of traction for the thumb and the other four fingers, and the clamping force of the hand clamping mechanism can be adjusted according to the traction force.

The invention relates to the technical field of fracture traction and reposition medical instruments, and in particular relates to a fracture traction device, used for fracture traction and reposition of an arm. The fracture traction device includes a traction platform, a fixing mechanism for fixing the arm of a patient, and a traction mechanism for applying traction on the arm of the patient. According to the fracture traction device, the fixing mechanism is used for fixing the arm of the patient, and cooperating with the traction mechanism for applying traction on the fracture part of the arm of the patient, so that difficulty during a traction process is reduced and traction time consumption is reduced; a universal structure is arranged on the traction mechanism of the fracture traction device, the traction direction or the traction angle can be randomly adjusted during the traction process, and the fixing position of the arm of the patient and the position of the traction device do not need to be adjusted; the fracture traction device provided by the invention is simple in structure, small in occupied space and applicable to using in small hospitals or homes.

The invention discloses a shank and ankle fracture traction reduction frame, and belongs to the technical field of medical instruments for the department of orthopaedics. The shank and ankle fracture traction reduction frame is used for carrying out traction reduction on shank and ankle fractures. According to the technical scheme, two inclined long rods serve as main traction rods, the middle portions of the two main traction rods are connected with the upper portions of two supporting rods through rotating shafts respectively, a traction transverse shaft is perpendicularly connected between the upper portions of the two main traction rods and provided with a traction screw hole, the upper portion of a traction arch is connected with the lower end of a lead screw, the lead screw is matched with the traction screw hole, the upper end of the lead screw is connected with a motor, the motor is connected with a programmable controller, the lower portion of the traction arch is fixed to the upper bone of the shank under traction, a traction kirschner wire is arranged on the lower portions of the two main traction rods, and the middle portion of the kirschner wire penetrates through the bone of the foot under traction. By means of the shank and ankle fracture traction reduction frame, accurate traction can be carried out on shank and ankle fracture parts, malposition, twist and the like of the fracture parts can be corrected, the reduction quality of minimally invasive treatment of lower limb fractures is improved, and the operation difficulty is lowered.

The invention discloses an automatic traction and rotating reset device for a leg fracture. The automatic traction and rotating reset device comprises suckers, a base, a telescopic sleeve, a traction mechanism, a rotating reset mechanism, a tension sensor and a fixing foot plate. The suckers are fixed to the bottom of the base. The body reset mechanism is connected with the base through the square telescopic sleeve. The traction mechanism is a lead screw sliding table used reversely, and a motor is arranged at the tail end of the traction mechanism. The rotating reset mechanism is connected with a motor speed reducer. The output end of the rotating reset mechanism is provided with a connector universal for a traction table. The rotating reset mechanism is connected with the tension sensor and the fixing foot plate into a string through the connector universal for the traction bed. The rotating reset device can finish traction and rotating reset of the leg fracture and gets ready for other operation in surgery; the magnitude of drag force can be fed back, and excessive drag is avoided; the traction and reset effect can be kept, and repeated operation is avoided; traction and rotation are quantified, and reference is provided by a reset method for fracture traction operation; the device is suitable for a common steel traction table, and equipment transformation is simplified.

The invention discloses a multifunctional fracture traction repositor. The multifunctional fracture traction repositor includes a first bundling belt and a buckle, the upper end of the first bundlingbelt is provided with a winding groove, the upper end of the winding groove is provided with a big connection belt, the inner surface of a small connection belt is provided with an angle regulator, the upper end of the buckle is provided with a first shoulder strap, one side of the first shoulder strap is provided with a second shoulder strap, and the upper end of the second shoulder strap is fixedly provided with a second bonding belt. The multifunctional fracture traction repositor is provided with the winding groove, the angle regulator and the first shoulder strap, the big connection beltcan be manually adjusted to be wound in the winding groove so as to change the length of the repositor, so that the repositor is suitable for different users, at the recovery phase, the user can makethe legs conveniently bent, and the repositor can be more stably installed on the leg of a wounded person through the shoulder strap, can be suitable for different working conditions and has better application prospects.

In a device for controlling, adjusting and / or commissioning a working implant, in particular a distraction treatment device for fractures, the receiving unit (2) can be mounted directly releasably in the implant (1) or with The implants (1) are connected. The device can be implanted together with a receiving unit (2) and receive data and / or energy from the outside via a transmitting unit (3).

The invention relates to a fracture traction device, in particular to a high-safety fracture traction device and a traction detection method. The high-safety fracture traction device comprises a traction bow, a rope walking mechanism, a counterweight device and an angle sensing system, and metal needles used for being inserted into fracture parts are arranged at the two ends of the traction bow; the rope walking mechanism is used for guiding a traction rope, and one end of the traction rope is connected with the traction bow through a first safety hook; the counterweight device is used for providing force required by traction, and the counterweight device is connected with the other end of the traction rope; and the angle sensing system comprises angle sensors, a microprocessor, a display screen and an upper computer, the angle sensors are arranged at all parts of the traction rope at intervals and collect angle signals of the direction of the traction rope, the microprocessor is used for processing analog quantity output by the angle sensors and transmitting the analog quantity to the display screen and the upper computer, and when the angle deviation exceeds a threshold value, the nurse adaptively adjusts the angle of the traction rope and the weight of the weights according to the alarm of the nurse station upper computer.

The invention discloses a femoral fracture traction reduction device which comprises a rear fixing unit O, a near-end two-dimensional adjusting unit A, a far-end two-dimensional adjusting unit B and a front traction rotating unit C. Each two-dimensional adjusting unit comprises a clamping component arranged on a corresponding bone section in a sleeving mode. The front traction rotating unit C comprises a penetrating rod piece which transversely penetrates through the ends of the bone, and the two-dimensional adjusting mechanisms which are adjusted in the vertical direction and the longitudinal direction are arranged at the two ends of the penetrating rod piece respectively. According to the device, the multi-angular-position adjusting function is achieved by fixing one bone section and adjusting the other bone section, angular position adjustment is conducted through the near-end two-dimensional adjusting unit A and the far-end two-dimensional adjusting unit B, and traction and steering are conducted through the front traction rotating unit C. According to the scheme, the structure is simplified, the adjusting mode is visual and accurate, all parts cannot interfere with one another, and the problem of repeated adjustment is solved.

The invention relates to a reverse thread retractor, which includes a screw adjusting module, a first retracting module, a second retracting module and a sliding rod. The screw adjusting module includes an adjusting knob, a screw, a right-hand thread and Left-handed thread, the left end surface of the adjustment knob is connected to the screw, the side of the screw adjacent to the adjustment knob is provided with a right-handed thread, the other side of the screw is provided with a left-handed thread, and the right-handed thread is threaded on the first A stretch reset module, the left-hand thread is threaded to connect the second stretch reset module, and the first stretch reset module and the through hole on the second stretch reset module are slidably connected to the sliding rod. The present invention has the advantages of convenient operation, Minimally invasive reduction, small incision, less exposure, less damage, fluoroscopy, good reduction and fixation effect, etc., the process of distraction reduction along the axis is stable, precise, controllable, safe and convenient to use, and can be used for various fractures. Distraction and reduction of fractures involving distal and proximal segments and joints.

The invention relates to a medical instrument for human, especially a fracture traction device used for train berth, comprising a lower splint immobilization device, an upper splint immobilization device, a lower fastening bolt, an upper fastening bolt, a device capable of adjusting traction force, a traction dynamometer, an upper fixed pulley, a lower fixed pulley, a traction rope. The lower splint immobilization device is immobilized on the lower berth edge by the lower fastening bolt and the upper splint immobilization device is immobilized on the middle berth edge by the upper fastening bolt and the upper fixed pulley is fixed on the upper splint immobilization device and the lower fixed pulley is fixed on the lower splint immobilization device and the device capable of adjusting traction force is connected with the dynamometer and the dynamometer is connected with the traction rope and the traction rope passes through firstly the upper fixed pulley and then the lower fixed pulley and the end of the traction rope is connected with the traction rope. The fracture traction device has features of convenient installation, less space usage and ability of realizing traction of the patient limbs or head neck bone fracture on the train berth.

The invention discloses a suspension traction device for dual lower limbs of an infant. The device comprises a suspension rack, two n-shaped skin traction belts for fixing the dual lower limbs of theinfant are suspended on the suspension rack, and each skin traction belt is composed of an expansion plate and two clamping plates located at the two sides of the expansion plate; an ankle fixing bandfor sleeving the ankle of the infant is arranged in each skin traction belt, a traction rope is connected to each ankle fixing band, and each traction rope movably and upwards penetrates through theexpansion plate of the corresponding skin traction belt and is connected with the traction end of the lower side of a tension sensor at the same time; the traction end of the upper side of the tensionsensor is connected with a piston rod installed on an air cylinder of the suspension rack, the signal end of the tension sensor is in signal connection with a controller, and the controller is in signal connection with an alarm. The suspension traction device has the advantages that by adopting a dual-insurance fracture traction treatment mode that traction of the skin traction belts is matched with traction of the ankle fixing bands, the complications of continuous traction treatment are reduced, and the fracture traction treatment effect on the infant patient is improved.