32 results about "Skin traction" patented technology

An interface device and method for interfacing instruments to a vascular access simulation system serve to interface peripherals in the form of mock or actual medical instruments to the simulation system to enable simulation of medical procedures. The interface device includes a catheter unit assembly for receiving a catheter needle assembly, and a skin traction mechanism to simulate placing skin in traction or manipulating other anatomical sites for performing a medical procedure. The catheter needle assembly and skin traction mechanism are manipulated by a user during a medical procedure. The catheter unit assembly includes a base, a housing, a bearing assembly and a shaft that receives the catheter needle assembly. The bearing assembly enables translation of the catheter needle assembly, and includes bearings that enable the shaft to translate in accordance with manipulation of the catheter needle assembly. The shaft typically includes an encoder to measure translational motion of a needle of the catheter needle assembly, while the interface device further includes encoders to measure manipulation of the catheter needle assembly in various degrees of freedom (e.g., translation, pitch and yaw) and the skin traction mechanism. Alternatively, the shaft may include an additional encoder to measure translational motion of an instrument inserted through the catheter needle assembly. The simulation system receives measurements from the interface device encoders and updates the simulation and display, while providing control signals to the force feedback device to enable application of force feedback to the catheter needle assembly.

The invention relates to an elastic skin expander, a skin traction system of the elastic skin expander and a hook rod fixing system of the elastic skin expander. The elastic skin expander is clinically applied to the orthopedics department and the plastic surgery department and can is adjustable in pressure. The hook rod fixing system comprises an adjusting component and a fixing hook device, wherein the adjusting component comprises a screwed rod, a wheel-fixing nut, a pressure-adjusting component, a pressure-adjusting spring, a slide casing pipe and a fixing nut; the pressure of the pressure-adjusting component applied to the pressure-adjusting spring is read through a slide casing pipe pressure scale meter under the matching between the pressure-adjusting component, the pressure-adjusting spring and the slide casing pipe; the fixing hook device is arranged between the slide casing pipe and the fixing nut and comprises a body part and a hook part which are connected through screw threads or connected in a fastening way or integrally molded.

A medical device for temporarily treating an individual having a flail chest injury prior to and during transport of the individual for further medical treatment. The medical device includes a flexible member engageable with a flail segment of an individual that provides skin traction to the flail segment of the individual for stabilizing paradoxical motion of such flail segment during respiration. There is an adhesive layer disposed on the flexible member for temporarily adhering it to the flail segment of the individual.

The invention discloses an orthopaedic patient skin traction nursing method and system which are applied to a skin traction system. The system comprises at least one traction belt, wherein a first sensor is arranged on the traction belt. The method comprises the steps of acquiring personal information and pathological information of a first user; inputting the personal information and the pathological information of the first user into a training model; obtaining output information of the training model, wherein the output information comprises traction force information of the first user; determining first skin traction duration information according to the traction force information of the first user; and obtaining a first instruction, wherein the first instruction is used for performingskin traction on the first user. The technical problems that the skin is injured due to improper skin traction force, and secondary injury is caused to the illness state of a patient are solved.

The invention relates to an elastic skin expander and a skin traction system and a cant hook fixing system thereof in the clinical application of the department of orthopedics and the department of plastic surgery. The skin traction system is composed of cant hook fixing systems, a stick clip and traction steel needles, each cant hook fixing system is composed of a fixing hook, a needle fixing nut, a rod fixing nut, a sliding sleeve pipe, a pressure adjusting spring, a pressure adjusting wheel and a wheel fixing nut, and a threaded rod is provided with the rod fixing nut, the sliding sleeve pipe, the pressure adjusting spring, the pressure adjusting wheel and the wheel fixing nut in a radial direction. Each traction steel needle is a cylindrical steel needle, a steel wire or a cable, and the stick clip can be classified into a first type, a second type, a third type, a fourth type and other various forms. By means of the elastic skin expander and the skin traction system and the cant hook fixing system of the elastic skin expander, the pressure adjusting wheel is swirled to compress the pressure adjusting spring to receive a counter acting force from fixing clip block by the stick clip, the pressure adjusting spring gives the pressure adjusting wheel the counter acting force to drive the threaded rod, a needle fixing hook, the traction steel needles to exert pulling tension on the skin, the skin gradually expands and grows under the pulling tension, and the wound healing is accelerated.

The invention discloses a novel skin traction device, which comprises an ankle holding part and a knee holding part. The ankle holding part and the knee holding part have a same structure, the ankle holding part and the knee holding part comprise brackets, and one side of the brackets are connected with a cover plate through rotation of a pin, a clamping mechanism is fixed on the cover plate, anda buckling mechanism is arranged between one end of the cover plate away from the pin and the bracket, a lower cushion is fixed on the inner wall of the bracket, the outer edge of the lower cushion isprovided with a tightening mechanism, adjustable support arms are arranged between the ankle holding part and the knee holding part on both sides, an elastic support strap is fixedly connected to thebottom between the ankle holding part and the knee holding part, and the bottom end of the ankle holding part is fixedly provided with a supporting mechanism. By providing the adjustable support armsbetween the ankle holding part and the knee holding part, rapid skin traction is achieved with ensuring of no traction falling, through the supporting mechanism, the adjustment of a traction supportangle can be realized, and the tissue pain and edema phenomenon caused by the long-term traction at a same posture can be avoided.

The invention relates to a skin draw hook retractor fixing device for operations. The skin draw hook retractor fixing device is composed of fixing seats, fixing clamping grooves, a connection band and a draw hook. The fixing seats are frame structures made of medical plastic and have four different commonly-used shapes according to different human body portions which the fixing seats are suitable for, and the fixing clamping grooves are evenly distributed in the peripheries of the fixing seats at intervals with the distances ranging from 3cm to 5cm, wherein the A shape body is rectangular, the B shape body is square, the C shape body is in the shape of a bottle gourd, and the D shape body is in the shape of a circular arc. The connection band is made of a silicone tube, and one end of the connection band is connected with the draw hook, wherein the draw hook is made of medical stainless steel materials and can be made into a single hook or a double hook or a multi-claw hook. The A shape fixing seat, the B shape fixing seat and the C shape fixing seat are formed by combining a plurality of parts, and all the parts are connected through movable shafts. Because the connection band is made of the silicone tube good in elasticity, the skin draw hook retractor fixing device is simple in structure, convenient to use and firm in skin traction fixing. The skin draw hook retractor fixing device is suitable for the operations in a plurality of departments like the department of surgery, anorectal sections and the department of gynaecology.

The invention discloses a child lower limb single hip herringbone fixing and skin traction device. The instrument comprises a lower limb fixing plate, and the lower limb fixing plate is worn on a child and tightly attached to the hip and the lower limb below the hip of the child; a foot fixing plate is arranged below the lower limb fixing plate, and pulley supporting rods are fixedly connected to the two sides of the bottom end of the lower limb fixing plate; the bottom end of the pulley supporting rod is rotationally connected with a pulley which is in sliding fit with a lower steel wire rope. One end of the lower steel wire rope extends upwards and is connected with the upper end of the foot fixing plate; the other end of the lower steel wire rope bypasses the pulley, extends upwards and is fixedly connected with the upper steel wire rope through a traction adjusting device; and a weighing device is arranged on the upper steel wire rope. According to the present invention, when one end of the lower steel wire rope is pulled upwards, the lower steel wire rope generates traction force for driving feet to move downwards through the pulley, so that the traction effect on the lower limbs of a child is achieved, and meanwhile the traction force can be accurately controlled through the weighing device.

The invention relates to a flexible skin traction system. The system is applied to a wound on the surface of the limb, and is characterized by comprising at least three anchor devices fixed on the surface layer of the skin; any two adjacent anchor devices are connected in a way that one end of a traction line is wound and fixed on a winding post of the first anchor device, the other end of the traction line is fixedly connected with an elastic piece, the elastic piece is sleeved in a sleeve, the sleeve is arranged in the surface layer of the skin at the edge of the wound in a penetrating mode,the other end of the elastic piece is fixedly connected with one end of the other traction line, and the other end of the other traction line is wound and fixed on a winding post of the second anchordevice; scales are arranged at the positions where the traction lines on the anchor devices pass through, and marks are arranged on the traction lines, so that the marks are located at the scale 0 positions when the lengths of the elastic pieces are just the original lengths; and the tension of each elastic piece is changed by adjusting the winding condition of each section of traction line on the corresponding winding post, so that the traction force of each edge of the wound is adjusted. According to the scheme, firstly the outline of the human limb can be fitted, the muscle or epidermis cannot be pressed and cut, in addition, different traction force can be generated at different positions, and the traction force is very convenient to adjust and read in the whole course of disease.

The invention discloses a pull-out type negative pressure medical sponge stirring and scraping device. The pull-out type negative pressure medical sponge stirring and scraping device comprises a stirring and scraping combiner, a hollow medical sponge stick and a wide-edge suction disc, wherein the stirring and scraping combiner is arranged in the hollow medical sponge stick; the wide-edge suction disc is arranged above the hollow medical sponge stick in a matching way, and is provided with a medical sponge flushing port and a medical sponge negative pressure pipe joint; the stirring and scraping combiner comprises a sleeve cylinder mechanism and a scraper mechanism, and the scraper mechanism comprises a shaft rod, a propeller and a brush; the sleeve cylinder mechanism comprises a sleeve cylinder, a shaft hub, an air suction pipe connecting part and an air delivery pipe connecting part; each connecting part is provided with an air port and a thread joint, and is connected with the sleeve cylinder through the thread joint. The pull-out type negative pressure medical sponge stirring and scraping device has the advantages that the dirt attached onto the surface of the sponge can be scraped and sucked out, the blockage of medical sponge micro-channels is avoided, and the inflammation reaction of wounds is reduced; under the condition of not replacing a skin traction closer and a sponge, the dirt is flushed and cleaned; by matching with the skin traction closer, the skins at both sides of the wound can be gradually closed.

The application provides a self-adapting skin traction system. The self-adapting skin traction system is characterized by comprising one or more traction force displaying parts, one or more pulling force adjusting parts each of which is connected with the corresponding traction force displaying part, and a traction needle, wherein each traction force displaying part comprises a flexible inner cylinder and a flexible outer cylinder connected to the flexible inner cylinder in a sleeving manner; each flexible inner cylinder can be in sliding cooperation with the corresponding flexible outer cylinder; end covers are arranged on each inner cylinder and each outer cylinder; a spring is connected to the inner parts of the two end covers; graduation is drawn outside each flexible inner cylinder oreach flexible outer cylinder, so that when the flexible inner cylinder and the flexible outer cylinder are in relative sliding, the sliding distance can be displayed; when the spring is under an initial length, the displayed graduation is the zero point of the graduation; a connection part is arranged on the outer sides of every two end covers; the traction needle rips into traction skin; the needle body is hollow; a hole which enables the hollow part and outside to be in communication is formed in one side of the needle body; a thread penetrates into the hole, and at least a part of the thread is fixedly bound to the needle body; and after the traction needle rips the skin, the thread is attached to the traction force displaying parts or the pulling force adjusting parts. The applicationfurther provides a skin traction method.

The invention relates to the technical field of repair after skin defect for the orthopedics department, the traumatology department and the burns department in a hospital, in particular to a skin traction patch which comprises a plurality of elastic patch bodies with viscosity on one side. A rope traction part is arranged on one lateral side of each elastic patch body. The elastic patch bodies are distributed annularly. The rope traction parts are arranged on the inner side of the annular structure formed by the elastic patch bodies. A rope is arranged on each rope traction part. The middle of each rope is arranged on the corresponding rope traction part. The ropes of every two adjacent elastic patch bodies are connected through a rope locking device. The skin traction patch has the advantages that the patch is simple in structure, convenient to operate, safe and effective, and no secondary trauma is added and operation does not need to be carried out under anesthesia compared with a traditional skin grafting and skin flap technology and a recent skin traction technology; the patch is only attached to body skin and is light in weight, not prone to falling and beneficial for activity and rehabilitation.

The present invention is an electro-mechanical external skin pulling device for users to pull / stretch and hold in place their skin in an easy, reliable, safe and predictable manner to enable facial, eye, cheek, neck and / or throat appearance modifications, integrated with an optional wireless remote control adjustment / monitoring system using either a mobile communication device running an application for the present invention or a dedicated remote control device to adjust and maintain the desired skin alteration.

The invention discloses a percutaneous punching and belemnoid truncation device. The percutaneous punching and belemnoid truncation device comprises a skin traction device, a belemnoid truncator and asleeve for supporting the skin traction device and guiding the belemnoid truncator, wherein a guide rod is arranged in the sleeve in the axial direction of the sleeve. The percutaneous punching and belemnoid truncation device further comprises a slider in sliding fit with the guide rod. A support is fixed to the slider and provided with a rotating shaft. A driving wheel fixedly sleeves the rotating shaft. The percutaneous punching and belemnoid truncation device further comprises a plurality of tensioning wheels fixed to the support. A steel wire rope for truncating belemnoid is wound on thedriving wheel and the tensioning wheels. A pretightening spring for driving the slider to move downwards is arranged at the position, above the slider, of the guide rod. The principle is that the steel wire rope is driven by the driving wheel to move and the belemnoid is truncated by the rapidly-moving steel wire rope. The pretightening spring has downward acting force so that the steel wire ropecan closely fit the belemnoid all the time without manual intervention.

The invention discloses a skin distractor capable of simultaneously using negative pressure suction. The skin distractor comprises: a porous hose arranged along a first direction; a bottom dressing, wherein at least a part of the bottom dressing is in contact with the porous hose; a distraction line arranged in a second direction intersecting with the first direction, wherein one end of the distraction line is connected with a traction plate, and the traction plate is connected with the skin; and a winding mechanism comprising a winding shaft outer cylinder arranged above the bottom dressing, a winding shaft with the lower end arranged in the winding shaft outer cylinder, and a knob matched with the upper end of the winding shaft, wherein a wire outlet hole is formed in the winding shaft outer cylinder, the other end of the distraction line is connected with the winding shaft through the wire outlet hole, the other end of the distraction line is connected with the knob, and one end of the distraction line moves towards the winding shaft or is allowed to move away from the winding shaft by rotating the winding shaft. According to the invention, traction and negative pressure suction of skin can be achieved at the same time, and infection can be avoided through the negative pressure suction technology while the skin traction operation is carried out.

The invention discloses a wart scraping device, and relates to the technical field of medical instruments, and the wart scraping device comprises: a skin traction assembly which is used for being attached to the skin; a steering assembly which is erected on the skin traction assembly through a supporting structure, wherein the steering assembly comprises an annular frame and a rotating shaft capable of rotating in the annular frame; and a curette which comprises a curette handle and a curette body, wherein the curette handle is connected with the rotating shaft through a swinging structure, so that the curette handle rotates around the rotating shaft and / or transversely moves along the rotating shaft. The positioning of the curette can be improved, the curette is prevented from being scraped too deep or too shallow, and the operation efficiency is improved.

The invention discloses a protective cover for an internal jugular vein hemodialysis catheter. The protective cover comprises a cover body (10), a plurality of elastic tensioning belts (20) and hook-and-loop fasteners (30), wherein the main body part of the cover body (10) is of a net-shaped structure (11), and a solid edge (12) is arranged on the periphery of the net-shaped structure (11); one ends of the plurality of elastic tensioning belts (20) are connected with the two sides of the cover body (10) correspondingly; and the hook-and-loop fasteners (30) are arranged at the other ends of the elastic tensioning belts (20) and used for connecting the multiple elastic tensioning belts (20) to form an annular structure. The protective cover for the internal jugular vein hemodialysis catheter has the advantages of being simple in structure, low in cost, clean, breathable, firm in fixation, flexible in operation, convenient to observe, comfortable to use, capable of greatly reducing catheter detachment and displacement, local skin traction, infection, bleeding and the like.

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.

The invention provides a child femoral shaft skin traction anti-rotation device, relates to the technical field of medical instruments, and solves the problems that the existing child is lack of consciousness of joint movement after a femur operation, the disconnection position is extremely easy to displace after the movement, the later healing effect is influenced, and secondary injury is causedto the child. The child femoral shaft skin traction anti-rotation device comprises a first limiting mechanism and a first adjusting mechanism, wherein the rear end of the first limiting mechanism is rotationally connected to the position above the front end of a supporting plate mechanism; and the first adjusting mechanism is rotationally connected to the middle position in the first limiting mechanism. During use, the upper end of the femoral shaft of a child is placed in the semicircular clamping groove of the fixed clamping plate A, the lower end of the femoral shaft of the child is locatedin the semicircular clamping groove of the fixed clamping plate B, then the hook claw A is connected with the extension plate of the template A in a hung mode, and the adjusting rod A is rotated; therefore, the adjusting clamping plate A and the fixing clamping plate A fix the upper end of the femoral shaft of the child.

A snowshoe-ski kit comprising a hybrid snowshoe-ski comprising a main body defining a bottom surface operative for moving over snow and having a snowshoe-ski traction coefficient, and a top surface opposite the bottom surface. The hybrid snowshoe-ski further comprises a binding attached to the main body for attachment to a person's foot atop the top surface. The kit also comprises a first removable and reversible sheet-like skin having opposite first and second surfaces each defining respective first and second skin traction coefficients that differ from each other and that differ from the snowshoe-ski bottom surface traction coefficient. The first skin is removably attachable to the snowshoe-ski main body with either one of the first and second surfaces bearing against the bottom surface and the other one of the first and second surfaces being exposed, for allowing the snowshoe-ski to be operatively used either alone or with the first skin installed with either one of the first and second skin surfaces exposed.

The invention discloses a reverse skin traction frame for diaphyseal fracture in children. The reverse skin traction frame for diaphyseal fracture in the children comprises the following parts which are coaxially arranged: a proximal metaphysis fixing ring, a distal metaphysis fixing ring, and a first telescopic rod; two ends of the first telescopic rod are respectively and fixedly connected withthe proximal metaphysis fixing ring and the distal metaphysis fixing ring; the first telescopic rod has a locking function; a first fixing device is arranged on the proximal metaphysis fixing ring, and comprises a bandage; one end of the bandage is fixedly connected with the proximal metaphysis fixing ring, and the other end of the bandage is connected with the proximal metaphysis fixing ring in an adjustable way; a rotating ring is coaxially arranged inside the distal metaphysis fixing ring, and is in rotating connection with the distal metaphysis fixing ring; a second fixing device is arranged inside the rotating ring, and comprises a skin traction means; and a limiting device is arranged between the distal metaphysis fixing ring and the rotating ring. The reverse skin traction frame fordiaphyseal fracture in the children is capable of simultaneously carrying out pulling in the longitudinal direction and the rotation direction; and moreover, the reverse skin traction frame is convenient to adjust, controllable and precise. Therefore, reset accuracy and maintenance time are improved.

The invention discloses a skin traction device and a skin traction system. The skin traction device comprises a first carrying plate, a second carrying plate and traction belts, wherein the lower surface of the first carrying plate is fixedly provided with first fixing needles, the upper surface of the first carrying plate is fixedly provided with first fixing frames, and each first fixing frame is fixedly provided with a fixed gear; the lower surface of the second carrying plate is fixedly provided with second fixing needles, the upper surface of the second carrying plate is fixedly provided with second fixing frames, each second fixing frame is fixedly provided with a motor, and the output shaft of each motor is provided with a moving gear; and two ends of each traction belt are independently meshed with one fixed gear and one moving gear. The skin traction device is convenient for continuously carrying out skin traction, patients are protected, excessive traction is avoided, and a purpose of wound healing is realized.

The invention discloses a traction device for the orthopedic surgery, which comprises a storage limiting piece. The shape of the storage limiting piece is set to be of a cavity-shaped structure of which the bottom and the two ends are open; the top end of the storage limiting piece is connected with adjusting locking assemblies in an inserted connection mode; the adjusting locking assemblies are distributed at equal intervals; each adjusting locking assembly comprises a positioning column; the bottom end of each positioning column is fixedly connected with a winding piece; each winding piece is movably connected with a hooking and pulling assembly in an inserted mode; a transverse adjusting plate and a locking piece are symmetrically arranged on the side face of the storage limiting piece; and the transverse adjusting plate is locked to the side face of the storage limiting piece through the locking piece. By means of mutual cooperation between the arranged storage limiting piece and the adjusting locking assemblies, rotation adjustment of the adjusting locking assemblies can be more convenient, so that the traction force of the hooking and pulling assemblies can be linearly adjusted; and by means of mutual cooperation between arranged hook claws and anti-skid columns, the skin traction at an opening can be more stable.

The invention discloses a manufacturing method and an application of a long pillow with holes for treating femoral neck fractures. The manufacturing method is characterized by comprising the following steps: (1) sewing a pillowcase with soft cotton cloth, and reserving an opening in the wide edge of the pillowcase; (2) pretreating phyllanthus emblica leaves with traditional Chinese medicine liquid, filling the pillowcase with the phyllanthus emblica leaves, sewing the opening of the pillowcase after filling, and sewing lines on an obtained cushion along the long edge of the pillowcase at equal intervals of 15cm for fixing the phyllanthus emblica leaves; (3) forming a round hole in the center of the end of the long edge of the cushion, and carrying out strict disinfection treatment on the cushion to prepare the long pillow with holes. According to the manufacturing method, the long pillow is designed according to human anatomy characteristics, so that the affected limbs suffering femoral neck fractures are positioned on the same horizontal height, the vertical degree during abduction of the affected limbs is maintained, the effective traction ratio is improved, the reduction and healing of the femoral neck fractures are favored, the generation of bedsore is avoided, and a scientific nursing method is provided for skin traction of femoral neck fractures during clinical nursing.

The invention discloses a simple fixing device for senile non-displaced femoral neck or femoral intertrochanteric fracture. The simple fixing device comprises a longitudinal leg fixing plate and a transverse foot fixing plate, the rear end of the foot fixing plate is perpendicularly connected with the lower end of the leg fixing plate, and anti-deviation diaphragms of the foot fixing plate are arranged on two sides of a heel. One ankle slot guard plate is respectively mounted on two sides of a right-angle position of the rear end of the foot fixing plate perpendicularly connected with the lower end of the leg fixing plate, and an ankle slot is formed between the two guard plates. A whole lower limb can be comfortably placed into the slot and can be prevented from deviating outwards or inwards by a crosspiece at the root of the simple fixing device. The strength of the whole lower limb is uniformly dispersed to two sides of the device and two sides of a foot, an ankle joint and skin have no great tension, and skin traction pain, surgical risk and defects such as needle eye infection are avoided. Moreover, when the lower limb is extended at a certain angle for too long time and a patient is tired, an extended adduction angle can be optionally adjusted, and a foot dorsum cannot swell, or thrombus of the lower limb cannot be induced.

The invention discloses an automatic skin traction and folding device which is characterized by comprising a hollow arc-shaped outer guide cylinder and two hollow arc-shaped skin traction cylinders, wherein the two hollow arc-shaped skin traction cylinders are respectively sleeved in openings at two ends of the outer guide cylinder in a manner of sliding along the arc-shaped inner wall of the outer guide cylinder; the sliding-out ends of the skin traction cylinders are closed blind ends and are provided with skin traction hooks, the outer guide cylinder is provided with a driving mechanism, and the driving mechanism pushes the skin traction cylinders located on the skin edges on the two sides of the wound to move oppositely so that the skin can be automatically and continuously pulled under certain tension till the skin edges are folded; the elastic traction force applied by the two traction hooks automatically and continuously pulls the skin under a certain tension until the skin edges are folded, so that the skin traction device can well adapt to the tension of the skin, promote the rapid healing of the wound skin, avoid the drawing injury of the skin edges caused by overlarge traction amount, obviously shorten the treatment time and reduce the treatment cost. And secondary injury caused by skin grafting is avoided, and pain caused by an operation is avoided.

The invention provides a self-adaptive skin traction system. The system is characterized by comprising at least one traction force display part, at least one tension adjusting part and a traction needle, wherein the traction force display part comprises a flexible inner cylinder and a flexible outer cylinder which is connected outside the flexible inner cylinder in a sleeving manner; the flexibleinner cylinder and the flexible outer cylinder are in sliding fit; the inner cylinder and the outer cylinder are provided with end covers; springs are connected inside the two end covers; scales are drawn outside the flexible inner cylinder or on the flexible outer cylinder, and the sliding distance can be displayed when the flexible inner cylinder and the flexible outer cylinder slide relatively;when the springs are at the initial length, the displayed scale is the zero point of the scale; connecting parts are arranged on the outer sides of the two end covers; the tension adjusting part is connected with the traction force display part; the traction needle penetrates into the skin to be pulled; a through groove is formed in the needle body; anti-skid teeth are arranged on the groove wall; a line penetrates through the through groove; at least one part of the line is fixedly bound with the needle body; and after the traction needle penetrates into the skin, the line is hooked with thetraction force display part or the tension adjusting part.