33 results about "Humeral fracture" patented technology

A proximal humerus fracture plate for promoting healing of a fracture of a human humerus, comprising: an upper section having at least one screw hole for receiving an upper screw, the trajectory of the screw hole is a lateral to medial orientation; a transitional section having at least one screw hole for receiving a middle screw, the transitional section integral with the upper section and curved sufficiently to avoid a deltoid tuberosity, the middle screw fixing the transitional section along a lateral cortex of the humerus; and, a lower section having at least one screw hole for receiving a lower screw, the trajectory of the screw hole is an anterior to posterior orientation, the lower section integral with the transitional section.

An apparatus and method for reducing and fixing fractures, for example, a proximal humeral fracture. A jacking device releasably attached to a locking plate presses against an inferior aspect of the head to rotate the head into anatomic alignment. Suture material stitched into the soft tissue superior to the head pulls the superior end of the head and guides and steers the head. The suture material passes through suture holes in the superior end of the plate. The jacking device positions and holds the head in an anatomic neck/shaft angle, thereby allowing the head to be fixed to the locking plate. In one such embodiment, a swivel bushing in the plate receives the jacking device and allows the angle of the device to be adjusted as desired. To aid in the fluoroscopic visualization during surgery, a radiolucent retractor is used to avoid blocking the surgeon's view.

A method and apparatus of reattaching a bone fragment to a proximal humerus of a humerus in a shoulder joint. The method includes introducing a distal end of the humeral nail into a medullary canal of the humerus. A first proximal screw is engaged with the bone fragment and a first proximal bore in the proximal end of the humeral nail to move the bone fragment toward the proximal humerus. The humeral nail and the attached bone fragment are rotated relative to the medullary canal of the humerus to position the bone fragment to an anatomically optimal location. The bone fragment is preferably one of a greater or lesser tuberosity of the proximal humerus. The method and apparatus can be used to reattach bone fragments in a variety of other joints.

A bone plate system for repair of a proximal humeral head fracture, which includes a fixation plate having a main body and a depending alignment flange, a plurality of elongated compression screws to extend through the intact humeral head into the cortical bone of the fractured portion and a cover plate. With the fixation plate in place, fastened to the humerus, the cover plate is in turn fastened to the fixation plate and provides a defined amount of clearance in a region adjacent the heads of the compression screws to allow measured back-out of the screws upon settling of the fractured bone portion at the fracture site.

The invention relates to a fracture three-dimensionally-intersecting-connecting-locking internal fixing device. The fracture three-dimensionally-intersecting-connecting-locking internal fixing device is characterized by including the distal-femur fracture three-dimensionally-intersecting-connecting-locking internal fixing device, the proximal-humeral fracture three-dimensionally-intersecting-connecting-locking internal fixing device, the femoral-intertrochanteric fracture three-dimensionally-intersecting-connecting-locking internal fixing device, the femur-neck and proximal-femoral fracture connecting-locking internal fixing device, the backbone intersecting and locking internal fixing device and the backbone sliding-chute locking internal fixing device in a three-dimensionally intersecting, connecting and locking mode. According to the fracture three-dimensionally-intersecting-connecting-locking internal fixing device, the space structure which has the three-dimensional rotation resisting effect and the introversion resisting effect and is optimal and most stable for distal femur fractures is formed; the internal fixing device is tightly attached to the femur inner-side fracture line through high-strength slant cotter pins, the continuity of cortexes of bone is rebuilt to achieve strong spanning supporting, introversion shifting of fractures is effectively prevented, and static force stabilization in structural mechanics is achieved; as locking pins span the two ends of the fracture line to resist bending stress firstly, part of the stress is borne by screws, and the world problem that due to stress concentration of AO locking plates for backbone fractures, proximal femoral fractures, distal femur fractures and proximal humeral fractures, plate breaking often occurs is solved in structure and biomechanics.

The invention provides a 3D printed humerus model which comprises a humerus shaft, a humerus near end, a humerus rear end, a fracture face and/or 10 or less broken bones. The humerus model further comprises mirror image humerus structures of a 3D printed fractured humerus to the side humeri, wherein a nail inlet hole or a structure needed in the other operation processes is arranged nearby the fracture face. A model manufacturing method comprises the steps that images and three-dimensional data of the two side humeri or the fractured part are obtained in a 64-row spiral CT scanning mode, data of the mirror image humerus structures of the fractured humerus model and the opposite side humeri by analyzing the three-dimensional data, and then the mode is switched into a 3D printing identification mode for model printing. By comparing the mirror image humerus structures and the fractured humerus structure, an operator can be visually and efficiently helped to operate, and a young doctor can visually know operating steps and easily communicate with a patient with a solid structure. The 3D printed humerus model is reasonable in structure and convenient to use.

Various embodiments of the present invention provide systems and methods for treating a proximal humeral fracture. A system according to one embodiment includes a longitudinal member configured to be received within the humeral shaft. The system includes a jig assembly configured to be coupled to the longitudinal member, wherein the jig assembly includes at least one hole defined therethrough that is configured to guide placement of at least one hole in the humeral shaft, and wherein the hole formed in the humeral shaft is configured to align with at least one hole in the humeral implant such that the jig assembly is configured to locate the position of the humeral implant in the humeral shaft.

The invention relates to a clinical type bone plate for distal humeral fracture. The clinical type bone plate for the distal humeral fracture comprises a handle-shaped first supporting plate and a square second supporting plate, wherein the width of the main body of the first supporting plate is greater than the width of the main body of the second supporting plate; one end of the first supporting plate, far away from the second supporting plate, is provided with an arc-shaped end part; one end of the second supporting plate, far away from the first supporting plate, is provided with an end part which inclines upwards slightly and takes a linear shape roughly; the left end part of the second supporting plate connected with the first supporting plate takes an arc shape which is roughly square; the left edge part of the connecting part of the second supporting plate and the first supporting plate takes an arc shape and slightly inclines towards the central part of the main body of the second supporting plate; the right edge part of the connecting part of the second supporting plate and the first supporting plate takes a concave arc shape and is connected with the upper edge of the second supporting plate; in the main body of the first supporting plate, a plurality of fixed bolt through holes are formed at the roughly central position in the width direction along the length direction; and in the main body of the second supporting plate, two rows of fixed bolt through holes are distributed roughly uniformly along the width direction.

The invention relates to the technical field of medical teaching aids, in particular to a standard patient for examination on spinal and limb fracture emergency fixation and carrying training. The standard patient comprises a high imitation body model and an electronic monitoring/warning device, and is characterized in that the high imitation body model has imitation humeral fracture, ulnar fracture, radial fracture, tibial fracture and fibular fracture under external fixation with small splints, and also has imitation cervical compression fracture near which an angle displacement switch is provided, the neck is under external fixation with a neck collar, and an angle displacement switch is arranged at imitation lumbar vertebral fracture; an electronic monitoring/warning device control panel is arranged on the chest of the high imitation body model; the electronic monitoring/warning device is built in the chest and includes a lithium battery warning speech module, a vibration sensor switch and a speaker; speech and red light warnings are automatically given upon carrying errors. The standard patient for examination on spinal and limb fracture emergency fixation and carrying training is suitable for the training and examination on medical students' and in-service medical personnel's spinal and limb fracture fixation and carrying emergency skills in medical colleges and teachinghospitals.

The invention relates to a bone block fixing device for proximal humerus comminuted fractures, belonging to the technical field of orthopaedic medical instruments, for fixing a plurality of bone blockss of proximal humeral comminuted fracture. The technical scheme is as follows: the lower end of the connecting rod of the intramedullary nail is threaded and matched with the screw hole of the tail of the intramedullary nail; the upper end of the connecting rod of the intramedullary nail is a rotating shaft; one end of the horizontal rotating piece is provided with a shaft hole and is rotatably connected with the rotating shaft of the upper end of the intramedullary nail connecting rod, and the other end of the horizontal rotating piece is bent and connected with the upper end of the aiming plate; the aiming plate is parallel to the nail body of the intramedullary nail, and the plate surface of the aiming plate is opposite to the intramedullary nail; the plate surface of the bone plate islocated between the nail body of the intramedullary nail and the plate surface of the aiming plate; the upper end of the bone plate is connected with a screw, and vertical screw holes are arranged onthe plate surface of the horizontal rotating plate; and the screw on the upper end of the bone plate is connected with the screw holes of the horizontal rotating plate. The bone block fixing device for proximal humerus comminuted fractures can fix a plurality of fracture bone fragments of the proximal end of the humeral fracture in multiple directions and angles, and achieves a satisfactory reduction effect.

Embodiments of the invention relate to a flexible nail for internal fixation of a proximal humerus fracture. The flexible nail comprises a flexible nail body, wherein a flexible nail head is of a tapered structure disposed at one end of the flexible nail body; a flexible nail tail is of an arc-shaped structure and disposed at the other end of the flexible nail body and used for bending the flexible nail during the nailing process; an anti-sliding portion is disposed on the flexible nail body, is close to the flexible nail tail and is used for applying pressure to the humerus to prevent nail returning. Therefore, the flexible nail for internal fixation of a proximal humerus fracture solves the problems that a screw drops during a surgery and the humeral head is punched and the joint is broken. A good holding force can be obtained, no risk of humeral head punching occurs, the bone destruction is small, and the surgical success rate is improved; the flexible nail tail is set to an arc shape, so that the flexible nail can be bent during the nailing process, the adherence fixation is achieved, and an anti-pull-out force of the flexible nail is also increased.

The invention relates to a shoulder joint dynamic and static combined regulation external fixator, comprising a bone external fixation support, a steel needle fixation clamp connected to the bone external fixation support, and a steel needle clamped in the steel needle fixation clamp, wherein the bone external fixation support comprises a near end hole C-shaped ring and a far end hole C-shaped ring, and the opening directions of the near end hole C-shaped ring and the far end hole C-shaped ring are the same, the near end hole C-shaped ring and the far end hole C-shaped ring are uniformly provided with a plurality of holes, the middle parts of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by an arc-shaped connecting rod, the two ends of the near end hole C-shaped ring and the far end hole C-shaped ring are connected by dynamic traction joint devices, each dynamic traction joint device comprises a first joint connecting piece connected with the hole at the end part of the near end hole C-shaped ring and a second joint connecting piece connected with the corresponding hole in the far end hole C-shaped ring, and the first joint connecting piece and the second joint connecting piece are connected by a central spindle and can swing relative to the central spindle. The fixator is flexible in operation, the curative effect is improved, and the complications of proximal humeral fracture of shoulder joints are reduced.

The invention relates to an anatomic artificial bone assisting reduction of proximal humeral fractures. The anatomic artificial bone comprises an lower fixator and an upper fixator; one end of the lower fixator is connected onto the upper fixator; the lower fixator is cylindrical shaped, and the axis of the lower fixator is coincided with the axis of the human humeral shaft during use of the lowerfixator; a humeral bone plane and cylindrical hollows corresponding to intertubercular sulcus are arranged on the upper fixator; the cylindrical hollows corresponding to the intertubercular sulcus are arranged on the side face of the upper fixator; a central locator is arranged on the humeral bone plane. The anatomic artificial bone has the advantages that reference marks can be provided for reduction of the proximal humeral fractures, rapid anatomical reduction can be highly assisted in terms of quantification, bone loss is filled, a supporting platform is provided for fractures, surgical process is simplified, and the anatomic artificial bone can serve as a novel medical instrument and has extensive application prospects in clinical use.

The invention discloses a proximal humeral fracture fixing device and a locking plate thereof. The proximal humeral fracture fixing device comprises a locking plate and fixing bolts, wherein the fixing plate comprises a head part, a body part and a torsion part fixedly arranged between the head part and the body part; through the torsion part, the head part and the body part are in torsion arrangement; in addition, the front side wall of the torsion part is also concavely provided with a room-making groove; through the torsion arrangement and the structure of the room-making groove, axillary nerves are avoided; and the body part is provided with first locking and connecting holes, wherein the first locking and connecting holes are cooperated with the fixing bolts. The proximal humeral fracture fixing device has the following advantages that an axillary nerve avoiding effect is better, an axillary nerve injuring risk is lowered, and soft tissues are slightly injured during a surgical operation, and implantation is convenient.