46 results about "External fixator bar" patented technology

The invention relates to the technical field of pelvic minimally invasive surgeries, and particularly discloses a device for establishing a pelvic crista iliaca external fixation frame screw channel, which comprises a sleeve I and a sleeve II sleeved on the inner side of the sleeve I. A conical tip and a probe with a blunt bottom are further arranged in the sleeve I. The probe is slidably sleeved on the conical tip. The side wall of the probe is in sliding contact with the inner side wall of the sleeve II; the top of the conical tip is fixedly provided with a hand cone, the hand cone is sleeved with a first annular shell in a sliding and sealing mode, the outer side wall of the first annular shell is fixedly sleeved with a second annular shell, and the outer side wall of the second annular shell is in sliding contact with the inner side wall of the first sleeve; a plurality of through holes are formed in the side wall, close to the bottom, of the first annular shell. According to the device, the conical tip, the probe and the sleeve are integrally designed, meanwhile, on the operation level, medical staff only need to continuously push the handle downwards and finally hold the handle to pull out the handle, a pelvic crista iliaca external fixation screw channel can be established, and the efficiency of establishing the screw channel is greatly improved.

The invention discloses a main rod connecting device of an external bone fixing frame, and relates to the technical field of medical instruments. Comprising fixing rods, steel needles are installed in the fixing rods, universal joints are installed at the opposite ends of the two fixing rods, a shell is arranged between the two universal joints, a grading rotating mechanism is installed in the shell, an adjusting assembly is installed at the lower end of the front side of the shell, and the grading rotating mechanism comprises a baffle. A rotating rod is rotatably connected to the upper end of the barrier plate, a resistance assembly is installed in a second gear, normal joint movement is simulated, the problem that joints of a patient are stiff in all recovery stages is solved, the patient is helped to rebuild motion perception so as to improve the recovery effect, resistance during limb rotation of the patient can be increased step by step, and the recovery effect is improved. Exercise and adaptability to the limbs of the patient are enhanced, the recovery effect of the fracture area of the patient is improved, and growth of callus is promoted.

The present invention provides a lateral fibular bone transport external fixator device, which includes a fibular transport device, a tibia fixation device, and a connection device. The fibular transport device drives the synchronous movement of the fibular transport frame through the movement of the adjustment device, so as to realize the position offset of the bone block of the osteotomy segment of the fibula. The tibia fixation device includes a tibia fixation frame and a deviation correction adjustment device, and the deviation correction adjustment device can adjust the fixation position of the tibia fixation frame and the connection device. The connection device connects the fibular transport device and the tibia fixation device. The present invention also provides a method for using the lateral fibular bone transport external fixator device. The present invention only sets the fixed fulcrum on the tibia, reduces the number of wound surfaces on the tibia side, does not affect the load-bearing capacity of the tibia after surgery, and at the same time sets the bone transport operation on the fibular side to realize the lateral fibular bone transport. The fibula is located deep in the skin fascia and is wrapped by the anterior and posterior muscle groups of the fibula. There is a richer capillary basis for bone transport at the fibular end, and the effect of repairing blood circulation is better.

The invention relates to the technical field of vacuum chamber welding auxiliary equipment, in particular to a high-precision vacuum chamber modular assembly welding fixing tool which comprises a module assembly, an inner supporting frame is arranged in the module assembly, an outer fixing frame is arranged outside the module assembly, and a moving assembly is arranged below the outer fixing frame. The moving assembly and the outer fixing frame are connected through a welding seam adjusting assembly. According to the invention, the inner support frame is arranged, so that the module assembly is prevented from deforming inwards; by arranging the outer fixing frame, outward deformation of the module assembly is avoided; by arranging the moving assembly and the welding seam adjusting assembly, the outer fixing frame is clamped through a clamping plate, connection of the outer fixing frame and the moving assembly is achieved, a first sliding table can be driven to move along an arc-shaped sliding rail through work of a first motor and rotation of an output wheel, and rapid alignment of the two module assemblies is achieved; the servo oil cylinder is used for driving the second sliding table to move horizontally, the distance between the two module assemblies is adjusted, and welding seam adjustment of the module assemblies is achieved.

The invention provides a bone transport instrument, which comprises a head end fixer, a bone transport device, a bone transport device, a bone transport device and a bone transport device, and is characterized in that the head end fixer comprises a hydraulic cylinder; the guide rod is connected with a middle fixing device; the propeller is connected to the hydraulic cylinder of the head end fixer through a guide pipe; the two ends of the guide rod are connected with the head end fixers, and the guide rod is inserted into the hydraulic cylinder to form a hydraulic rod together with the hydraulic cylinder; the hydraulic cylinders at the two ends of the guide rod are connected to the two ends of the propeller through guide pipes correspondingly, and the propeller pumps hydraulic oil into the hydraulic cylinders through the guide pipes to push the guide rod to move. According to the internal traction mode, traction force does not need to be applied through an external fixing frame any more, it is avoided that too many kirschner wires are driven into limbs of a patient to fix sclerotin, the burden of the patient is relieved, wounds caused to the patient in the bone moving process are reduced, and therefore complications such as wound infection are further reduced.

The utility model discloses a nursing external fixing frame which comprises a main body, a fixing frame A is fixed to the bottom end of the inner side of the main body, a fixing frame B is arranged at the position, opposite to the bottom end of the fixing frame A, of the inner side of the main body, a height adjusting mechanism is arranged between the fixing frame B and the main body, and a rapid clamping mechanism is arranged on the inner side of the fixing frame B. The height adjusting mechanism comprises a base. The connecting assemblies are arranged on the two sides of the fixing frame B and connected with the main body; the guide assembly is arranged on one side of the interior of the connecting assembly; by means of the fixing rods, the connecting grooves, the connecting rod positioning holes and the positioning screw rods, the height between the fixing frame B and the fixing frame A can be conveniently adjusted, meanwhile, the screw hole adjusting screw rods, the bearings and the operation wheels are matched, limbs of a patient can be conveniently clamped and fixed, and nursing and treatment are facilitated.

The utility model provides an adjustable back stretching type external fixing frame, and relates to the field of correction instruments, the adjustable back stretching type external fixing frame comprises an abdomen fixing sheet, two sides of the abdomen fixing sheet are fixedly connected with supporting plates, the back of the abdomen fixing sheet is provided with a rear fixing plate, the upper end of each supporting plate is provided with an upper fixing plate, and the surface of each supporting plate is provided with an adjusting mechanism; by arranging the abdomen fixing piece, the supporting plate, the rear fixing plate and the upper fixing plate, the effect of fixing and correcting the spine is achieved, by arranging the adjusting mechanism, the using position of the upper fixing plate can be adjusted, the upper fixing plate and the rear fixing plate can be matched to be suitable for being used by a kyphosis patient, and by arranging the fixing mechanism, the fixing effect is good. According to the spine orthopedic external fixing frame, the wearing tightness can be adjusted, the effect that the spine orthopedic external fixing frame can adapt to patients with different pelvic widths is achieved by arranging the tightening mechanism, and therefore the using effect of the spine orthopedic external fixing frame is improved.

The application relates to a device for promoting osteogenesis of bone cut ends, a single-side lengthening frame and a Taylor six-axis external fixation frame. The device comprises a first connecting part, a second connecting part, a micro-motion part and a driving assembly. The second connecting part is driven by the micro-motion part to make reciprocating motion along a linear path through the driving assembly, so that the second connecting part and the first connecting part make relative reciprocating motion, promoting osteogenesis of the first bone cut end and the second bone cut end, and the process has high repeatability. By controlling the working parameters of the driving assembly, the parameters of the reciprocating motion of the micro-motion part can be controlled, so that the power promotion process can be accurately controlled.

The application discloses a traction reset external fixing frame assembly, which comprises a main rod, fixing nails and a traction adjusting mechanism, the main rod is provided with an end cylindrical groove, a traction seat is arranged in the end cylindrical groove, an end screw rod of the traction seat is sleeved in the end cylindrical groove, a vertical flat hole is arranged in the middle of the traction seat, shaft holes are arranged in the two side walls of the flat hole, two rotating shafts of an adaptive overturning block are matched and sleeved in the shaft holes of the two side walls of the flat hole, a central through hole is vertically arranged in the middle of the adaptive overturning block, an auxiliary adjusting nail is sleeved in the central through hole, the assembly further comprises a horizontal overturning matched sliding seat, which is provided with a rear arc-shaped hole and is matched and sleeved with a fixing ring, a rear support is fixed to the outer end of the traction seat, a vertical overturning matched locking rod is sleeved in the rear support, the inner end of the vertical overturning matched locking rod is provided with a matched locking hole and is sleeved outside the auxiliary adjusting nail. The components of the traction reset external fixing frame assembly are matched with each other, the corresponding assembly sequence and adjusting structure are arranged, and the function of fixing the external fixing frame under the traction reset condition can be realized.

The application discloses a skull arc motion bone moving external fixing frame, which comprises a threaded flat rod, an extension device connected to one end of the threaded flat rod, connecting rods arranged at the ends of the threaded flat rod and the extension device away from each other, and rotating needle clamps arranged at the ends of the connecting rods, wherein the threaded flat rod is hinged to the extension device, the two connecting rods are perpendicular to the plane where the threaded flat rod and the extension device are folded at an angle, and the rotating needle clamps are coaxially connected to the connecting rods; the threaded flat rod is provided with a sliding block, the sliding block is slidably connected to the threaded flat rod, two advancing nuts are arranged on the threaded flat rod, and the advancing nuts are threadedly connected to the threaded flat rod; the extension device comprises a lead screw, a connecting head arranged at one end of the lead screw, an adjusting knob arranged on the lead screw, and an extension pipe, wherein the lead screw is fixedly connected to the connecting head, the adjusting knob is threadedly connected to the lead screw, the extension pipe is slidably connected to the lead screw, and the extension pipe is coaxially connected to the adjusting knob.

The orthopedics external fixing frame support capable of being accurately pressurized or expanded comprises an upper fixing assembly, a lower fixing assembly, an adjusting base, an adjusting screw rod and an external supporting rod, wherein the adjusting screw rod and the external supporting rod are parallel to each other; the adjusting base is arranged at the bottom ends of the outer supporting rod and the adjusting screw rod in a sleeving mode and can limit the position relation between the outer supporting rod and the adjusting screw rod at the bottom ends of the outer supporting rod and the adjusting screw rod, the lower fixing assembly is arranged in the middle of the outer supporting rod and the adjusting screw rod, and the position of the lower fixing assembly can be adjusted along the outer supporting rod and the adjusting screw rod. The upper fixing assembly is arranged at the tops of the outer supporting rod and the adjusting screw rod; the upper fixing assembly comprises an upper three-dimensional moving mechanism, an upper platform module, an upper adjusting bolt and two upper outer fixing frame clamps. The lower fixing assembly comprises a lower three-dimensional moving mechanism, a lower platform module, a lower adjusting bolt and two lower outer fixing frame clamps. The external fixing device can be well matched with an external fixing frame, accurate pressurization, distraction or stretching of fractures and joints of a patient can be achieved, a doctor can operate the external fixing device easily and conveniently, and blood vessels and nerves can be avoided so as to reduce complications.

The invention belongs to the field of medical instruments, and particularly discloses a nail-rod system used as a fracture external fixing frame, which comprises a positioning auxiliary mechanism, an auxiliary sleeve and a fixing mechanism, the positioning assisting mechanism is used for correcting and assisting the fracture position and positioning the fixing mechanism; the auxiliary sleeve is used for accurately placing the fixing mechanism at the two broken ends of the fracture; the fixing mechanism is used for external fixation of the fracture after the fracture end dislocation is corrected; by optimizing the design structure, the fracture end can be effectively fixed only through a plurality of fixing nails and one fixing rod, the fixing rod is located outside the body and can be made of a relatively cheap stainless steel material, the machining cost is reduced, and therefore the price of the external fixing frame is reduced, and the economic burden of a patient is relieved; by improving the connecting mode and the fixing structure of the outer fixing frame, the optimal fixing effect can be achieved through the fewest nails and bars, the structure is simple, maintenance is convenient, and the optimal fracture fixing effect can be achieved through the fewest nails and bars.

The invention discloses a novel non-bone-penetrating external fixing ring frame which comprises an upper fixing ring used for being fixed to one end of a fracture, a lower fixing ring used for being fixed to the other end of the fracture and a supporting column arranged between the upper fixing ring and the lower fixing ring. The lower end of the supporting column is provided with a second connecting structure used for being connected with the lower fixing ring. The upper fixing ring and the lower fixing ring are each provided with at least two screws which are adjustable in depth and face the circle center. The design that a flat screw is in direct contact with the bone cortex through the upper fixing ring and the lower fixing ring to fix a fracture broken end is adopted, a kirschner wire does not need to penetrate through the bone cortex and a medullary cavity, pain caused by a traditional external fixing frame is avoided, the number of times that a patient enters an operating room in an anesthesia state is reduced, the probability of infection is reduced, and the working efficiency is improved. The treatment cost is reduced, and the economic burden of a patient is relieved.

A tool for implementing a correction plan in an external fixation frame having a plurality of adjustment elements or screws, for example, generally includes a driver, a motor, a controller, and a processor. The driver is adapted to engage and rotate each of the screws. The motor is coupled the driver and adapted to rotate the driver. The controller is connected to the motor and configured to control operation of the motor. The processor adapted configured to: receive correction plan data; receive identification data including information for identifying at least one of the plurality of screws; determine movement of at least one of the plurality of the screws based on the correction plan data and the identification data; and send signals indicative of the determined movement to the controller in order to rotate at least one of the plurality of screws according to a predetermined correction plan.

The utility model relates to the technical field of fracture treatment, specifically to a plate-type external fixator for tibial fractures, comprising an external fixator, a locking nail hole is provided inside the external fixator, a locking nail is arranged inside the external fixator, an extension plate is slidably connected to the middle of the external fixator, a bolt hole is provided inside the extension plate, a bolt is spirally connected inside the extension plate, a hollow plate is fixedly connected to the inner side of the external fixator, an extension plate is slidably connected to the inner side of the hollow plate, and a rotating shaft is rotatably connected to the inner top end of the extension plate; by providing the extension plate, the hollow plate, the extension plate and the rotating shaft, the device can adjust the position of the locking nail hole in the external fixator according to the position of different fractures, so as to facilitate the insertion of the locking nail into the locking nail hole in the external fixator, and at the same time reduce the time and difficulty required for operators to build the plate-type external fixator.

Disclosed herein are strut attachments for external fixation frames. The strut attachments provide solutions for frame configurations in which it is not possible to attach a strut at its ends to corresponding rings. The strut attachments may be considered an outrigger type of mechanism that achieves more travel out of completely collapsed struts. The strut attachments, each having a pivot and a hinge joint, allow a strut to be attached on the level of a first ring and extend at least partially proximally or distally to a second ring depending on the frame of reference of the ring system. These strut attachments may be used when the fully collapsed length of the strut will not allow the rings to get any closer to one another than is needed or proscribed. In such cases, the strut attachments allow for even tighter ring to ring distance.

The utility model discloses an external fixing frame for tibia fracture, and relates to the technical field of medical instruments. The device comprises two fixing rings, a mounting plate is connected between the two fixing rings, a sliding groove is formed in the mounting plate in a penetrating mode, and a plurality of inserting grooves are formed in the opposite sides of the inner wall of the sliding groove in an array penetrating mode in the length direction of the sliding groove; a sliding block in sliding fit with the sliding groove is constructed on the mounting block, and a mounting groove is formed in the mounting block in a penetrating mode; the fixing ring, the mounting plate and the mounting block form an outer fixing frame, the mounting plate is fixed to the leg of a patient through the fixing ring, the kirschner wire is detachably mounted on the mounting block through the needle cylinder, and the position of the mounting block can be adjusted in a sliding mode through insertion fit of the L-shaped block and the insertion groove and sliding fit of the sliding block and the sliding groove; the kirschner wires can be fixed after sliding adjustment, so that the positions of the kirschner wires are convenient to adjust, and meanwhile, the number of the mounting blocks can be increased or decreased according to needs, so that the number of the kirschner wires is increased or decreased, and practicability is improved.

The invention relates to a combined external fixing frame which comprises a base provided with a bottom pressing plate. The primary joint seat is connected with the base; a first-stage pressing plate is arranged on the first-stage joint seat; the second-stage joint seat is connected with the first-stage joint seat; a second-stage pressing plate is arranged on the second-stage joint seat; the bone nail rod is inserted between the base and the bottom pressing plate, between the first-stage joint seat and the first-stage pressing plate or between the second-stage joint seat and the second-stage pressing plate; the bone nail head is in threaded connection with the bone nail rod; wherein a first-stage joint pressing plate is further arranged on the base; the first-stage joint seat extends between the first-stage joint pressing plate and the base; a second-stage joint pressing plate is arranged on the first-stage joint seat; and the second-stage joint seat extends between the first-stage joint seat and the second-stage joint pressing plate. The bone nail rod is in threaded connection with the bone nail head. For patients with different diseases and physiques, the diameter of the bone nail can be adjusted only by changing the size of the bone nail head. And at the moment, the size of the fixing rod for connecting the base, the first-stage joint seat and the second-stage joint seat is not changed.

The utility model provides an orthopedic external fixing frame which comprises a first fixing plate and a second fixing plate, a connecting assembly is arranged between the first fixing plate and the second fixing plate, and mounting assemblies are arranged between the first fixing plate and a fixing needle body and between the second fixing plate and the fixing needle body. The mounting block can be fixed under the cooperation of the connecting screw rod and the limiting block, the limiting teeth can be clamped in the limiting tooth grooves, the situation that the mounting block swings in the using process is avoided, and the first fixing plate and the second fixing plate are movably connected conveniently by arranging the connecting base, the connecting rod and the connecting ball; the first fixing plate and the second fixing plate can be correspondingly adjusted in a swinging mode by medical staff according to requirements, the connecting ball located in the connecting base can be fixed after the locking screw is screwed down, the first fixing plate and the second fixing plate are prevented from swinging in the using process, and the using effect is improved. Therefore, the use stability of the first fixing plate and the second fixing plate is ensured.

The invention relates to the technical field of medical instruments, and discloses an intelligent joint of a planar external fixation frame for the orthopedics department, which comprises an extension side joint body and a flexion side joint body, and further comprises an extension side adjustable joint mechanism and a flexion side angle limiting mechanism, the extension side adjustable joint mechanism comprises a multi-axis linkage assembly arranged in the middle of an extension side joint body and a movable installation assembly arranged on the outer side of the extension side adjustable joint mechanism. The flexion-side angle limiting mechanism comprises a transmission adjusting assembly and an angle limiting assembly which are arranged in the middle of the flexion-side joint body, and a fixed mounting assembly arranged on the outer side of the flexion-side joint body; according to the intelligent joint of the plane type external fixing frame for the orthopedics department, the extension side adjustable joint mechanism and the flexion side angle limiting mechanism are adopted, the intelligent joint can adapt to anatomical differences of extension side joints of different patients, multi-degree-of-freedom movable adjustment of the extension side joints is effectively achieved, and the movable angle of the flexion side joints can be accurately controlled and adjusted.

A bone lengthening auxiliary device with a telescopic mesh support for assisting interosseous growth, on the basis of the current bone lengthening external fixation device, a mesh telescopic support made of magnesium material is fixed between the two ends of the osteotomy by the first bone external fixation needle or steel needle, and the first bone external fixation needle or steel needle for fixation is installed on the external fixation frame. The support can gradually expand with the lengthening of the two ends of the osteotomy, forming a mesh structure, providing a porous mesh support for guiding interosseous tissue regeneration between the two ends of the osteotomy, and improving the osteogenesis efficiency and strength during bone lengthening. The magnesium metal material can be degraded automatically in the later stage, and the degradation process can promote osteogenesis. The bone lengthening external fixation device is simple and convenient to operate during adjustment, with scales to ensure the adjustment accuracy; the support is prepared by 3D printing, which can be designed individually for different patients and different parts of the bone shape, and the mesh pore size can be controlled, with good adaptability and good bone lengthening effect.

The utility model relates to an orthopedics department external fixing frame protection device which comprises a protection sleeve body, the protection sleeve body is provided with a bandage used for binding the protection sleeve body to an orthopedics department external fixing frame, and a first through hole and a second through hole are formed in the two ends of the protection sleeve body in the length direction. The first through hole and the second through hole both penetrate from the upper surface to the lower surface of the protective sleeve body, a first protective cap corresponding to the first through hole is arranged on the upper surface of the protective sleeve body, a second protective cap corresponding to the second through hole is arranged on the upper surface of the protective sleeve body, the lower end of the first protective cap is fixed on the periphery of the first through hole, and the lower end of the second protective cap is fixed on the periphery of the second through hole. The upper end of the first protective cap is a closed end, the lower end of the second protective cap is fixed to the periphery of the second through hole, and the upper end of the second protective cap is a closed end. According to the bone nail protective sleeve, scraping and collision caused by protruding and exposing of the bone nail can be avoided, the protective sleeve body is not prone to slipping forwards, backwards, leftwards and rightwards by means of the limiting effect of the bone nail and the protective sleeve, and upward slipping of the protective sleeve body can be limited through the bandage.

The present application relates to an electric intelligent orthopedic external fixator, comprising a telescopic mechanism, an upper ring, a lower ring, a drive mechanism, and a control mechanism, wherein the telescopic mechanism comprises a sleeve and a screw rod; one end of the sleeve is hinged to the upper ring, and the other end of the sleeve is sleeved on the screw rod; an end of the screw rod away from the sleeve is hinged to the lower ring; the screw rod is provided with an adjustment nut gear; the drive mechanism comprises a motor, an output shaft, and a circuit board; the motor drives the output shaft; the output shaft is provided with a driving gear; the driving gear is engaged with the adjustment nut gear; the circuit board is connected to the motor; the control mechanism is disposed on the upper ring, and the control mechanism is connected to the drive mechanism, wherein the screw rod is provided with a target object; the drive mechanism further comprises a sensor; the circuit board is connected to the sensor; the sensor detects the target object. The present application provides the target object on the screw rod for detection by the sensor, thereby directly obtaining the telescopic length. In addition, the sensor and the motor are directly controlled by means of the circuit board, which greatly reduces the number of cables between the control mechanism and the drive mechanism.

The invention discloses a neurosurgery ventricular puncture positioning external fixing frame, and relates to the technical field of medical equipment, in particular to a neurosurgery ventricular puncture positioning external fixing frame which comprises an arc-shaped positioning base, a bonding layer is arranged at the lower end of the arc-shaped positioning base, an elastic bandage is arranged at the side end of the arc-shaped positioning base, and the arc-shaped positioning base is used for being fixed to the head of a patient. The upper end of the base is provided with a sliding guide rail sliding in the direction of the center line or the coronary seam, and the guide rail is fixed through a locking structure. The inner side of the guide rail is connected with a puncture needle fixing sleeve through an angle adjusting clamp, and the angle adjusting clamp can adjust and lock the angle of the puncture needle, so that the puncture needle can be accurately aligned with target positions such as an external auditory canal connecting line, a hairline or a position 2cm in front of a coronary suture and a position 3cm beside a midline. A replaceable elastic lining is arranged in the puncture needle fixing sleeve so as to be matched with puncture needles of different specifications. A scale area is arranged on the surface of the base, and the angle adjusting clamp is integrated with an angle dial, so that accurate positioning and reproduction are facilitated. The device is stable in structure, easy and convenient to operate and capable of effectively improving the puncture precision and safety.

The invention relates to the technical field of external fixing frames, in particular to a dual-mode adjusting rod and a joint repositor using the same. The dual-mode adjusting rod has three states, namely quick adjustment, fine adjustment and locking, during quick adjustment, the switching cap drives the locking block to be separated from the screw rod, at the moment, the rotating cap is not connected with the screw rod and can freely slide on the screw rod, quick adjustment of the overall length of the adjusting rod is achieved, during fine adjustment, the switching cap drives the locking block to be in threaded fit with the screw rod, and locking is achieved. When locking is needed, the switching cap drives the locking block to abut against and lock the screw rod and cannot rotate, and then the locking cap locks the rotating cap, so that the rotating cap, the connecting pipe and the screw rod are locked.

The utility model provides an external fixing device for treating metacarpal neck fracture, which comprises a fixing rod, and adjusting rods are inserted into two ends of the fixing rod. The needle tails of the kirschner wires are of upward bending structures, so that the kirschner wires are connected with the fixing frame, a fracture part can be more firmly fixed, stable support is provided, a kirschner wire fixing mode and an external fixing frame fixing mode can be combined, the advantages of the kirschner wire fixing mode and the external fixing frame fixing mode are integrated, corresponding defects of the kirschner wire fixing mode and the external fixing frame fixing mode are avoided, and the kirschner wire fixing mode is more convenient to use. Early movement of joints can be allowed while firmer fixation is provided, the treatment time is shortened, the treatment effect is improved, a soft cushion layer is formed at the joint of the kirschner wire and the fixing frame through the rubber sleeve, direct contact between the kirschner wire and the fixing frame is reduced, and therefore discomfort of a patient is relieved; and the rubber sleeve can absorb external impact and vibration to a certain extent, so that the influence of the external impact and vibration on the fracture part is reduced, and the rehabilitation of the patient is facilitated.

Disclosed herein are external fixation frames for correcting bone deformities. The external fixation frames include a top fixation ring and a bottom fixation ring coupled to one another by at least two struts. A half ring is coupled to bottom fixation ring. The bottom fixation ring is u-shaped. One or more rocker members may be coupled to the bottom fixation ring. The half ring may be hingedly coupled to the bottom fixation ring such that it can rotate with respect to the bottom fixation ring from a first position to a second position.

The invention relates to the technical field of medical auxiliary instruments, in particular to an iliolumbar fixing device for sacroiliac joint fracture dislocation, which comprises a pelvic external fixing frame with an arc-shaped structure and a sacroiliac screw, an arc-shaped sliding groove is formed in the pelvic external fixing frame, and a locking seat is slidably connected in the arc-shaped sliding groove; a locking assembly used for limiting the locking seat to slide in the arc-shaped sliding groove is arranged on the locking seat, and an extension nail is integrally formed at the tail part of the sacroiliac screw; a universal fixing assembly and a universal limiting assembly are sequentially arranged on the extension screw in the axial direction of the extension screw, and the universal fixing assembly is used for fixing the implantation depth of the sacroiliac screw; a universal joint is further arranged on the locking seat, and the universal limiting assembly is used for achieving self-adaptive adjustment and rigid locking of the sacroiliac screw puncture angle; the depth and angle of the sacroiliac screw are limited and fixed through the universal fixing assembly and the universal limiting assembly, and the problem that the mechanical property of an existing device is weakened due to the fact that the degree of freedom is improved is solved.

The utility model relates to the technical field of adaptive stress bone external fixation frame production, in particular to an arc degree detection device on an adaptive stress bone external fixation frame. The utility model aims to provide a device for detecting the arc degree of an adaptive stress bone external fixation frame, namely a device for detecting the arc degree of the adaptive stress bone external fixation frame, which comprises a detection table, a depth dial indicator, a matching table, a supporting table, a strip-shaped pressing block and a lamp strip, and is characterized in that the matching table is mounted on the upper surface of the detection table; the upper surface of the matching table is provided with a plurality of semicircular through grooves which are different in diameter and matched with the metal intramedullary needle, the upper surface of the supporting table is provided with a pressing threaded hole and a supporting threaded hole, a supporting bolt is arranged in the supporting threaded hole in a matched mode, the depth dial indicator is installed on the detection table, and the lamp strip is installed on the detection table through the lamp strip fixing base. The detection device is simple in structure, high in universality, convenient to operate and low in cost.

1. The name of the product of this design: external fixator clamp needle seat wrench. 2. Purpose of this design product: for orthopedic surgery. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.