55 results about "External fixator" patented technology

The present invention relates to an elastic external fixator system (1) for distracting a first bone (3) from a second bone (5) of the body (C) of a patient (P), comprising: - a first pin (7), - a second pin (9), and - a pair of fixators (11), each fixator (11) being held respectively by one end of the first pin (7) and by one end of the second pin (9), each fixator (11) comprising a first portion (21) having a first through hole and a second portion (22) having at least one series of second through holes, the first portion (21) being made of a first elastomeric material, the second portion (22) being made of a second material having a greater hardness than the first material. The invention also relates to an assembly comprising such a system (1) and a drilling guide. Figure for the abstract: Fig. 1

The utility model discloses an external fixing instrument for treating bony hammer-shaped fingers in the technical field of hammer-shaped finger treatment, which comprises a fixator aluminum plate, an injured finger and a fixing needle, the fixator aluminum plate is strip-shaped and can wrap the two sides of the palm back of the injured finger of a patient, and the fixing needle can penetrate through the fixator aluminum plate to pressurize the fracture end of the patient. The fixator aluminum plate is provided with a mounting hole, the mounting hole is formed in the middle of the fixator aluminum plate, and the diameter of the mounting hole is smaller than the size of the tail segment of a finger of a patient; the traction equipment can penetrate through the mounting hole to be fixed to the tail section of the finger of the patient, the end, located between the fixator aluminum plates, of the traction equipment is soft rubber, the soft rubber can be fixedly attached to the tail end of the finger of the patient, and an adjusting assembly is arranged at the upper end of the traction equipment; the annular fixing band is elastic and can be connected to the lower end of the fixator aluminum plate wrapping the fingers of the patient in a sleeved mode, and the external fixator can be used for treating the patient under the condition that an operation is not conducted.

The present technology relates generally to ring fixators and associated systems and methods. In some embodiments, for example, a ring fixator assembly comprises a ring configured to surround a fractured bone, a retention device disposed at a first position on the ring, and a tensioner clamp disposed at a second position on the ring. A wire extends between the retention device and the tensioner clamp. The tensioner clamp includes a first screw configured to secure the wire in position with respect to the tensioner clamp and a second screw configured to apply additional tension to the wire.

A joint of an external retaining device for fragments of a bone (external fixator) with circular ribs and grooves having a V-shaped cross-section, the flanks of which form frustum-shaped friction surfaces, which enable a high friction force to prevent rotation of the joint, and thereby prevent inadvertent displacement of the retaining device, and enable adjustment of the retaining device using an adjustable friction force for aligning the fragments of the bone.

The invention discloses a characterization method for describing tibia malformation correction path features, and the characterization method comprises the following steps: S1, building a bone section model, and modeling a bone section after osteotomy into a closed ring surface with the tail end of the bone section as the center; s2, according to the total correction period, the total adjustment amount of all traction rods of the parallel external fixator is averagely distributed every day, and then joint space equal-interval discrete planning is achieved; s3, constructing correction path characteristic evaluation indexes including rod length adjustment rate, bone section position stretching rate and bone section posture stretching speed; s4, the new bone shape is visually represented, the growth process of the bone section is represented as a series of discrete closed ring surfaces along the correction path, and the new bone shape is represented as the volume swept by the series of discrete closed ring surfaces along the correction path. According to the method, the visual representation of the new bone generation process in the malformation correction process is realized, so that a clinician is assisted to carry out feasibility analysis and evaluation on a preoperative correction prescription.

Logic may provide a deformity analysis to create a treatment plan for external fixators. Logic may further perform additional refinements to the treatment plan to improve the patient experience. Logic may further include pre-operative osteotomy to select an osteotomy and to provide real-time updates to a post-operative image based on changes to an osteotomy line, orientation, and / or rotation point. Logic may facilitate movement of one or two portions of a medical image to determine an alignment of bone segments in the portions of the medical image. Logic may generate deformity parameters based on a combination of translations and / or rotations of the movement to align the portions. Logic may create a treatment plan including a prescription for an external fixator based on deformity parameters.

The utility model relates to the field of external fixators, and discloses a fibula unilateral external fixator which comprises a threaded column, the upper end of the outer surface of the threaded column is sleeved with an upper nut in a threaded mode, the middle of the outer surface of the threaded column is sleeved with a clamping block in a threaded mode, and a clamping groove is formed in one side of the lower end face of the clamping block. The lower end of the outer surface of the threaded column is sleeved with a lower nut in a threaded mode. In the utility model, in a surgical operation, a steel plate is usually used for treating a fracture through a screw, and the steel plate is fixed on a skeleton through a screw to provide stable support and promote the healing of the fracture, but the screw steel plate needs to be disassembled after being used, and meanwhile, the screw steel plate possibly causes injury to a patient when being disassembled; when the fibula unilateral external fixator is used, external fixation is convenient, the broken end of the fibula can be reset through a small incision or closing, the outer surface of the threaded column is sleeved with the upper nut and the lower nut, and the positions of the clamping block and the clamping piece can be adjusted when the upper nut and the lower nut are rotated.

The present invention relates to an elastic external fixator system (1) suitable for distracting a first bone (3) with respect to a second bone (5) of the body (C) of a patient (P), comprising: - a first pin (7); - a second pin (9); and - a pair of fixators (11), each fixator (11) being respectively held by one end of the first pin (7) and by one end of the second pin (9), each fixator (11) comprising a first portion (21) provided with a first through-hole and a second portion (22) provided with at least one series of second through-holes, the first portion (21) consisting of a first elastomeric material, the second portion (22) consisting of a second material which has a greater hardness than the first material. The invention also relates to an assembly comprising such a system (1) and a drilling guide.

Embodiments of a multi-clamp apparatus for an orthopedic exterior fixator are disclosed. One embodiment of the multi-clamp apparatus has two clamp arms, each having a plurality of opposing crescentic channels that, when pressed together, are of a length, size, and shape to engage and secure a plurality of bone pins. An outrigger bar extends from each of the clamp arms for attachment of fixator components. Each clamp arm has a collapsible torque amplifying knob that can be hand operated and that causes relative movement of the two clamp arms for concurrently clamping and unclamping multiple bone pins when rotational force is applied to one or both of the knobs. The turn levers of each knob can be collapsed in a generally mating, side-by-side arrangement. The turn levers of the knobs are ergonomically designed so that the knobs can be hand operated, without tools, in the collapsed and un-collapsed configurations.

Logic may provide a deformity analysis to create a treatment plan for external fixators. Logic may further perform additional refinements to the treatment plan to improve the patient experience. Logic may further include pre-operative osteotomy to select an osteotomy and to provide real-time updates to a post-operative image based on changes to an osteotomy line, orientation, and / or rotation point. Logic may facilitate movement of one or two portions of a medical image to determine an alignment of bone segments in the portions of the medical image. Logic may generate deformity parameters based on a combination of translations and / or rotations of the movement to align the portions. Logic may create a treatment plan including a prescription for an external fixator based on deformity parameters.

The utility model relates to the technical field of medical instruments, and discloses a drainage tube external fixator which comprises a spring rod fixedly installed on the inner top wall of a tube sleeve, the upper end of the spring rod is fixedly connected with a pull rod used for pulling, and the lower end of the spring rod is fixedly provided with an installation block used for positioning. The lower end of the mounting block is fixedly connected with a cover plate used for positioning, and the outer surface of the pipe sleeve is fixedly connected with a connecting block used for positioning. According to the external fixator for the drainage tube, the tube sleeve, the spring rod, the pull rod, the mounting block and the cover plate are arranged in a matched mode, before a medical worker clamps the drainage tube in the tube sleeve, the drainage tube can be clamped in the tube sleeve by pulling the pull rod to enable the mounting block and the cover plate to be lifted upwards, and resetting can be conducted through the elasticity of the spring rod after the pull rod is loosened; the drainage tube can be limited and fixed by rotating the rotating shaft, so that the drainage tubes of different types and different sizes can be limited and fixed.

The utility model is applicable to the technical field of medical consumables, and provides a durable drainage tube fixing paste which comprises a base layer paste and a fixer, a central ring is arranged at the top of the base layer paste, a circle of clamping hook is formed at the top of the central ring, a plurality of limiting strips are further arranged on the inner wall of the central ring, a connector is arranged at the bottom of the fixer, and a narrow opening wider than the limiting strips is formed in the lower portion of the connector. A pair of arc-shaped grooves are formed in the top of the fixator, and a locking cover is further connected to one side edge of the fixator through a rotating shaft. According to the structure, the drainage tubes are fixed through the fixator, two drainage tubes can be fixed at the same time, and compared with an adhesive tape mode, the drainage tubes are not prone to falling off; in addition, the connector at the bottom of the fixator is directly inserted into the center ring, the fixator can rotate in a small range to adapt to movement of a human body pasting part, the dragging degree of the drainage tube to the fixing paste is reduced, and the fixing paste cannot fall off and is durable.

External fixator assemblies, systems, and methods thereof. An external fixator system may include a plurality of fixator assemblies configured to connect a plurality of pins, for example, positioned on opposite sides of a fractured bone, with one more rods. The fixator assemblies may include a plurality of clamp assemblies that are configured to clamp onto the rods. A distractor / compression instrument is used to adjust the location of a clamp assembly along the length of its rod.

The utility model provides a multi-segment spine reduction external fixator, which relates to the field of spine reshaping, and comprises fixing plates which are symmetrically arranged up and down, the two fixing plates are fixedly connected through inserting plates on two sides, two sides of the fixing plates are rotatably connected with telescopic sleeves, and the other ends of the telescopic sleeves are fixedly provided with limiting sleeves; the telescopic sleeve is divided into a fixed end and a free end, and a hinge shaft is fixedly installed on the contact face of the telescopic sleeve and the fixing plate. Through rotation and stretching of a limiting sleeve, after connection is completed, curing glue is injected into a cavity formed by a sealing ring, a telescopic sleeve and a positioning hole, meanwhile, curing glue is injected into a cavity formed by a sliding groove, a baffle and a positioning groove and a fixing sleeve, and therefore the device can be rigidly connected; through the arrangement, after the limiting sleeve can be adjusted at will, the device is rigidly connected, and therefore the problem that when the position of an existing device is fixed, the hole opening position needs to be precisely limited can be solved.

The invention relates to the technical field of CT image examination external fixators, in particular to a movable CT image examination external fixator, which comprises a bed body, a fixing device, a first fixing device, a second fixing device, a third fixing device, a fourth fixing device and a fifth fixing device, and is characterized in that a patient can lie on the bed body and can be moved into a CT; the head fixing assembly is arranged above the bed body and can reciprocate in the length direction of the bed body; the sliding rails are fixed to the two sides of the bottom of the bed body and are in sliding fit with the head fixing assembly. The body fixing assembly is arranged above the bed body, can reciprocate in the length direction of the bed body and is in sliding fit with the sliding rail; the head fixing assembly comprises movable frames distributed on the two side faces of the bed body. The side face clamping air bag is arranged to clamp the head of a patient, the side face clamping air bag can adapt to the shape of the head of the patient, the material is soft, discomfort is not likely to be brought to the patient, and the height of the head of the patient can be adjusted through the function of the height adjusting air bag.

An external fixator for fixing a fractured bone in place is disclosed. Methods of making and using the external fixators are also disclosed.

An improved external fixator assembly for fixating fractures that includes a proximal frame assembly, a distal frame assembly and a polyaxial joint. The polyaxial joint comprises articulating components that engage to have multi-axial or polyaxial translational motion to allow for distraction / reduction and adjustment of flexion / extension, radial / ulnar deviation, pronation / supination of the wrist to an optimal wrist position. The polyaxial joint may be lockable. Fixation screws are also provided for engaging the patient's bone tissue on opposite sides of a fracture.

The orthopedic outer frame comprises an outer frame body, the outer wall of the top of the outer frame body is fixedly connected with a junction box body, the top of the junction box body is fixedly connected with a protrusion, the top of the junction box body is provided with a junction box cover, the bottom of the junction box cover is provided with a slot, and the protrusion is connected with the slot in an inserted mode. Two connecting ports are formed in the bottom of the junction box cover, external threaded columns are fixedly connected to the interiors of the two connecting ports, protective covers are movably connected to the outer sides of the external threaded columns, rubber pads are fixedly connected to the inner walls of the bottoms of the protective covers, and screw placement holes are formed in the external threaded columns. According to the utility model, through cooperative use of the rubber pad and the rubber ring, the junction box body and the outer frame body are subjected to double sealing protection at the interface where the junction box body and the outer frame body are connected through the screw, and the baffle plate can stably shield and protect the power interface through the elastic ball.

The application discloses a long bone fracture external fixing frame with distraction and pressurization functions, comprising a plurality of bone nails, at least two connecting frames and a bidirectional screw rod. The bone nail comprises a sharp part, a threaded rod part and a connecting head part; the connecting frame is provided with a plurality of through holes and a plurality of locking members; the locking members are arranged correspondingly beside the through holes or the connecting head parts; the connecting frame is provided with a threaded adjusting hole; one end of the bidirectional screw rod is provided with a first threaded section, and the other end is provided with a second threaded section with a rotation direction opposite to that of the first threaded section; the bidirectional screw rod is provided with a holding part. The through holes of the connecting frame are distributed at intervals along the length direction, the assembly hole positions can be selected flexibly according to the fracture positions and the bone nail implantation points, different long bone forms can be adapted, and the force line deviation caused by the limited fixed positions is avoided. When the bidirectional screw rod is rotated, the two connecting frames move synchronously and reversely, the equidistance displacement is realized by single rotation, the asynchronization error caused by separate adjustment is avoided, the precision and efficiency of pressurization or distraction are improved, and the axial pressure or distraction force can be applied by controlling the rotation direction and the number of turns.

According to the technical scheme, the multifunctional medical external fixator comprises a soft silica gel plate, the soft silica gel plate is provided with a through hole, a notch and a mounting groove, and fixing grooves are formed in a plurality of corners of the soft silica gel plate; the elastic fixing band is provided with a plurality of fixing ends, fixing hooks are movably installed in the fixing ends, and the fixing hooks hook the fixing grooves so that the elastic fixing band can be connected with the soft silica gel plate; the dressing piece is detachably installed in the installation groove and makes contact with the human body, and auxiliary openings corresponding to the through holes and the notches in position are formed in the dressing piece. According to the fixator, the catheter can be firmly fixed through friction force of the soft silica gel plate, displacement or falling of the catheter is prevented, or emergency hemostasis is achieved, open wounds are protected and the like, meanwhile, the stress area is increased through the soft silica gel plate, and compression and damage to the skin of a patient can be reduced; the elastic fixing belt can prevent the fixator from being excessively tightened or rubbed, and irritation to the skin is reduced; the elastic fixing band is flexible in style and can be suitable for different parts of a patient; the fixator is simple in structure, convenient to operate and capable of improving working efficiency.

Prosthetic coupling interfaces and methods of use are disclosed herein. An example system can include an external fixator apparatus, a prosthetic appendage assembly, and a prosthetic coupling interface for connecting the external fixator apparatus with the prosthetic appendage assembly.

The invention discloses an automatic positioning method for a 3D printing external fixing brace based on support minimization, and relates to the technical field of 3D printing, and the method comprises the following steps: S1, carrying out two-stage screening on triangular patches, and extracting real suspension points; s2, constructing a target function based on the real suspension point, and obtaining an optimal positioning posture according to an optimal solution of the target function; and S3, 3D printing is conducted according to the self-adaptive printing parameters and the optimal positioning posture. According to the method, the technological characteristics of three-axis printing are fully considered, the solution is reliable and feasible, and the method can be easily integrated into an existing slicing software workflow.

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 utility model provides a portable combined external fixing support for the orthopedics department. The portable combined external fixing support aims to solve the problems that a traditional external fixing support is poor in adaptability, complex to adjust and high in cost. The support core is composed of a splicing combination rod and a plurality of sets of fixing parts. The splicing combination rod is flexibly connected end to end through a plurality of single rods, and the length can be freely adjusted according to the requirement of a patient. The fixing part comprises a first sliding block matched with the combined rod in a sliding mode, a jackscrew used for locking, a mounting block and a skeleton fixing needle, and accurate adjustment and stable fixing of the fixing position are achieved. According to the design, a doctor is allowed to quickly customize a personalized treatment scheme according to the fracture condition of a patient, the treatment efficiency and the fixing stability are improved, the medical cost is reduced, and the operation process is simplified. The utility model is suitable for various fracture conditions, and is simple and convenient to operate and easy to maintain.

The application discloses a fracture external fixator with dynamic distraction function, which comprises a first fixing member, a second fixing member, a distraction guide rail, a linear driving mechanism and a controller. The first and second fixing members are distributed along a first direction and are used for fixing two parts of a fractured bone respectively. The distraction guide rail extends along the first direction and is connected with the first fixing member. An electric holder is in sliding fit with the guide rail and can clamp or loosen the guide rail. The first fixing member, the first electric holder, the second electric holder and the second fixing member are sequentially distributed. The second fixing member is connected with the second electric holder and is used for preventing the second electric holder from moving away from the first electric holder. The linear driving mechanism is installed on the first electric holder and is in driving connection with the second electric holder. The controller is electrically connected with the two electric holders and the linear driving mechanism. During treatment, the application can avoid a treatment empty window period between fracture fixation and bone defect repair and improve the continuity of overall treatment.

The present invention relates to an elastic external fixator system (1) for distracting a first bone (3) from a second bone (5) of the body (C) of a patient (P), comprising: - a first pin (7), - a second pin (9), and - a pair of fixators (11), each fixator (11) being held respectively by one end of the first pin (7) and by one end of the second pin (9), each fixator (11) comprising a first portion (21) having a first through hole and a second portion (22) having at least one series of second through holes, the first portion (21) being made of a first elastomeric material, the second portion (22) being made of a second material having a greater hardness than the first material. The invention also relates to an assembly comprising such a system (1) and a drilling guide. Figure for the abstract: Fig. 1

The utility model provides a calcaneal distance elastic external fixator for a calcaneal fracture patient, and relates to the technical field of medical instruments. A silica gel cushion is fixed at the top of the sole supporting plate; a group of sole fixing belts are further arranged at the top of the sole supporting plate; a shank supporting plate is rotationally mounted on the right side of the bottom of the sole supporting plate; a positioning insertion rod is embedded in the right side of the top of the sole supporting plate; a fixing belt supporting block is embedded in the right side of the shank supporting plate; a group of shank fixing belts are arranged on the outer side of the fixing belt supporting block. When the fixator needs to be stored, the shank supporting plate can be hidden in the opening groove in the bottom of the sole supporting plate, the vertical space occupied during storage is reduced, and storage is more convenient.

Reposition and penetration forceps for fractures of long bones, in particular traumatic fractures of tibia in centre line, that comprise two jaws forming a three-point system in opposition, wherein the first movable jaw (1) comprises two threaded pins (7) with tips (21) and the second firm jaw (2) comprises one threaded pin (7) with a tip (21). An external fixator for fractures of long bones, in particular traumatic fractures of tibia in centre line, which comprises at least two sets of forceps, wherein the sets of forceps are arranged identically or in a mirror image to each other.

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.