46 results about "Bone Lengthening" patented technology

The present disclosure provides an adjustable external fixator which can be utilized in bone transport or bone lengthening. The adjustable external fixator includes a body, a positioning member, a bone coupling member, and a threaded rod. The body includes a slideway. At least one of the positioning member and the bone coupling member is slidably coupled to the slideway of the body.

The invention discloses a single-side double-rail combined skeletal external fixation device, which consists of a flat-rotation bone needle clip, an L-shaped bone needle clip, a main guide rail, guide rail nuts, a movable bone needle clip, a perpendicular foot rectification bracket, a metatarsal bone needle regulation mechanism, a calcaneus bone needle regulation mechanism, a regulation cushion, a spindle bolt, an auxiliary support mechanism and a bone needle, wherein the flat-rotation bone needle clip ( or the L-shaped bone needle clip) is connected with the main guide rail via the spindle bolt; the guide rail nuts are respectively screwed onto two sides of the movable bone needle clip on the main guide rail; the perpendicular foot rectification bracket is clamped on the proper position of the main guide rail; the metatarsal bone needle regulation mechanism is respectively clamped on the corresponding positions of a small guide rail and the main guide rail; the calcaneus bone needle regulation mechanism is also clamped on the corresponding positions of the small guide rail and the main guide rail; the auxiliary support mechanism is clamped and fixedly arranged on the main guide rail; the flat-rotation bone needle clip, the L-shaped bone needle clip and the movable bone needle clip are used for clamping the bone needle to form the main body of the single-side double-rail combined skeletal external fixation device. The single-side double-rail combined skeletal external fixation device can be used for skeletal external fixation, bone lengthening, bone transportation, perpendicular foot rectification and O, X and K-leg orthopaedics.

The invention relates to a hip joint dislocation reset traction device, which consists of an ilium bone needle, an ilium bone needle clamp, a connecting plate, a triangular force application frame, regulating and fixing screw nuts, an auxiliary guide rail, a near end thigh bone needle clamp, a main guide rail, a thigh bone needle, a far end thigh bone needle clamp and a guide sleeve, wherein the ilium bone needle clamp is a plate element with the curvature similar to the curvature of the human body ilium bone and is combined with the ilium bone needle, the lower part of the ilium bone needle clamp is connected with the connecting plate, the connecting plate is screwed with the main guide rail, the triangular force application frame is fixedly clamped on the main guide rail, the auxiliary guide rail is arranged on the triangular force application frame in a penetrating way, and the regulating and fixing screw nuts and screws are respectively used for combination. The far end thigh bone needle clamp and the near end thigh bone needle clamp are respectively arranged at the far end of the main guide rail in a penetrating way, the regulating and fixing screw nuts are respectively screwed on the main guide rail arranged at the two sides, and the thigh bone needle is penetrated and clamped on the near end thigh bone needle clamp and the far end thigh bone needle clamp. The hip joint dislocation reset traction device is applicable to hip joint dislocation reset, is also applicable to hip joint dislocation reset and patients with short sick legs requiring the thigh bone lengthening, is also applicable to hip joint dislocation reset and patients with sick legs requiring thigh bone shortening, and can also be used for femoral head slipped epiphysis correction on juveniles.

The invention discloses a minimally invasive skeletal external fixation device for correcting foot accelerator drop and talipes varus. The minimally invasive skeletal external fixation device consists of an anti-toe-bending frame, a metatarsus needle adjuster, a heel bone needle adjuster, a heel bone needle adjuster bracket, a metatarsus needle adjuster bracket, an arc-shaped frame, a distal end bone needle clamp, an adjusting nut, a movement bone needle clamp, a proximal end bone needle clamp, a guide rail, a distal end bone needle, a movement bone needle, a proximal end bone needle, a heel bone needle and a metatarsus bone needle, wherein the guide rail is an assembly of the minimally invasive skeletal external fixation device; the anti-toe-bending frame and the metatarsus needle adjuster are connected with the metatarsus needle adjuster bracket clamped on the guide rail; the heel bone needle adjuster is connected with the heel bone needle adjuster bracket clamped on the guide rail; the distal end bone needle clamp, the movement bone needle clamp and the proximal end bone needle clamp are inserted into the guide rail, and are used for clamping corresponding bone needles; and the arc-shaped frame is clamped on the guide rail. The minimally invasive skeletal external fixation device can be used for correcting foot accelerator drop and talipes varus, performing one-time treatment on a patient suffering from foot accelerator drop, talipes varus, talipes valgus, bone lengthening, bone movement and the like and treating a patient suffering from one disease.

An external fixator for bone, which can be applied in bone transport or bone lengthening, includes: a bone plate, which includes several bone positioning holes; and an adjustment component, which has a slide rail and A first positioning part of the rail, the adjustment assembly further includes a bone coupling part, the bone coupling part is slidably arranged on the slide rail, the first positioning part has a first joint part, and the first joint part can Slidably arranged on the bone plate, the adjustment assembly further includes an adjustment screw, one end of the adjustment screw is screwed on the first positioning member and can pass through the first positioning member and push against the bone joint, so that The osseointegration moves along the slide rail. The present invention has a smaller volume and lighter weight by virtue of the bone plate and the adjustment assembly that can be attached to the patient's limbs, and can achieve the effect of reducing the burden on the patient's daily life.

The invention discloses an intramedullary bone lengthening device using memory alloy spring electromagnetic heating. The device comprises an intramedullary bone lengthening assembly and an electromagnetic heating temperature control assembly, wherein the intramedullary bone lengthening assembly comprises an upper intramedullary nail and a lower intramedullary nail, and a memory alloy spring is arranged between the upper intramedullary nail and the lower intramedullary nail; the electromagnetic heating temperature control assembly comprises a temperature sensing module, an in-vitro electromagnetic heating module and a temperature control module; the sensing end of the temperature sensing module is in contact with the memory alloy spring so that the accurate temperature of the in-vivo memoryalloy spring can be accurately acquired; meanwhile, the temperature sensing module converts acquired temperature signals into digital signals and sends the digital signals to the temperature controlmodule, and the temperature control module analyzes and compares the real-time temperature with a preset target temperature so that the temperature control module can accurately control the electromagnetic heating module according to a comparison result, then the deformation range of the memory alloy spring is accurately controlled, and the precision of a bone lengthening correction operation is guaranteed.

The invention discloses a bone lengthening scaffold. The bone lengthening scaffold comprises a first connecting rod assembly, a front end transfer sliding block assembly, a tail end rotating sliding block assembly and sliding rails, wherein the guide rails serve as a main scaffold; the front end transfer sliding block assembly and the tail end rotating sliding block assembly are connected onto the guide rails in a sliding fit manner; the first connecting rod assembly is connected with the front end transfer sliding block assembly and the tail end rotating sliding block assembly. The positions of the front end transfer sliding block assembly and the tail end rotating sliding block assembly on the sliding rails can be adjusted by adjusting the first connecting rod assembly.