45 results about "Hip fracture" patented technology

An improved apparatus for reducing a hip fracture utilizing a minimally invasive procedure which does not require incision of the quadriceps. A femoral implant in accordance with the present invention achieves intramedullary fixation as well as fixation into the femoral head to allow for the compression needed for a femoral fracture to heal. An alignment guide in accordance with the present invention is provided to facilitate alignment of instruments used to create a cavity in the bone for reception of the femoral implant and to facilitate size selection of the femoral implant. The alignment guide of the present invention includes a reference element and pattern arms having geometries which track an anatomical structure.

A hip fracture device providing distance limited dynamization, load controlled dynamization and combinations of both dynamization methods by varying components. The hip fracture device includes a plate having a head portion and a shaft portion. A barrel projects from the head portion of the plate and a screw is inserted in the barrel. A friction pin is slidably connected with the screw, and an end cap is fixed to the head portion of the plate. The friction pin is fixedly connected with the end cap. The screw slides over the friction pin and toward the end cap when a load is applied on the fracture device. The load required for further sliding of the screw over the friction pin increases incrementally as the screw slides towards the end cap.

The current invention is a bone plating system comprising a plate and screws. The plate resembles the average shape of the outer surface of the proximal femur (hip region). Cancellous screws through the plate are used to create compression between bone fragments and “locking” screws to create a stable connection between screw and plate. Each screw can accomplish either compression, stable connection with the plate or both. Screw holes in the plate can be slotted, thereby allowing for insertion of screws in relatively different positions to each other with regards to the screw entry points within the plate.

A bone plate having a plurality of openings for receiving a compression bone screw or a cortical screw. An end cap, threadably insertable in the opening and having a layer of polymeric material interposed between the end cap and the top of the head such that the compression of the polymeric material would allow slight axial movement of the screw. Alternatively, a locking ring adapted to attach to the head of the screw and having shape complimentary to the features formed on the head. The locking ring and the bone screw being assembled together and being insertable in the bone simultaneously using a dedicated instrument. Compression may be applied to a bone fracture by turning the bone screw alone after the locking ring has reached its final axial position.

An improved method and apparatus for reducing a hip fracture utilizing a minimally invasive procedure which does not require incision of the quadriceps. A femoral implant in accordance with the present invention achieves intramedullary fixation as well as fixation into the femoral head to allow for the compression needed for a femoral fracture to heal. To position the femoral implant of the present invention, an incision is made along the greater trochanter. Because the greater trochanter is not circumferentially covered with muscles, the incision can be made and the wound developed through the skin and fascia to expose the greater trochanter, without incising muscle, including, e.g., the quadriceps. After exposing the greater trochanter, novel instruments of the present invention are utilized to prepare a cavity in the femur extending from the greater trochanter into the femoral head and further extending from the greater trochanter into the intramedullary canal of the femur. After preparation of the femoral cavity, a femoral implant in accordance with the present invention is inserted into the aforementioned cavity in the femur. The femoral implant is thereafter secured in the femur, with portions of the implant extending into and being secured within the femoral head and portions of the implant extending into and being secured within the femoral shaft.

Methods and apparatus for orthopedic replacement of the hip and hip fracture fixation devices include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly. For example, a prosthetic femoral neck implant can include a thread and a Morse taper for lockable attachment to a prosthetic femoral head and/or intramedullary stem.

The invention discloses an acetabulum square area bone fracture plate which belongs to the technical field of orthopedic surgical instruments and is used for effectively fixing acetabular fractures. The technical scheme is as follows: the bone fracture plate has a three-dimensional structure, and the shape of each part of the bone fracture plate is respectively matched with curved shapes of an acetabulum square area, so that each part of the bone fracture plate can effectively fix the acetabular fractures. The bone fracture plate disclosed by the invention can effectively fix acetabular anterior and posterior column fractures at the same time, the coverage and support to the acetabulum square area can be increased by fixing arcuate lines and ischial spine parts of the acetabulum square area, and acetabular anterior and posterior columns can be stably reconstructed from the medial wall of the square area. The bone fracture plate disclosed by the invention is originated in the treatment of hip fractures, has a simple structure, is convenient to use, achieves unexpected good effects, solves difficult problems in the treatment of acetabulum square area bone fractures, has remarkable benefits, and is worthy of popularization.

The present invention relates to a device at fixing means for fixation of bone fragments at bone fractures, the fixing means (1) preferably being a spike for fixation of bone fragments at trochantery hip fractures. The fixing means (1) comprises a sleeve (5) and a pin (7) which is insertable into the sleeve (5) and displaceable in the longitudinal direction thereof. The pin (7) has a rear part (8) and at least two front parts (9, 10) with bent points or tips. Front parts of the sleeve (5) have openings (13, 14) through which the front parts (9, 10) of the pin (7) can be forced. The front parts (9, 10) of the pin (7) have a successively increasing thickness in backwards direction towards the rear part (8) of the pin (7) such that said front parts (9, 10), when forced or driven out of the sleeve (5) through the openings (13, 14), are formed into arcuate parts, the points (11, 12) of which are curved in backwards direction or substantially backwards relative to a geometric centre line along the pin (7), and such that those portions of the front parts (9, 10) which after said outward driving of the front parts (9, 10) are situated at the sleeve (5), are thicker and thereby stronger than those portions of the front parts (9, 10) which grip into the bone material (3).

A method and device for protecting a hip bone or limiting a severity of a hip bone injury, which includes at least one pad arranged to protect the hip bone, and a wearable garment to hold the at least one pad with respect to the hip bone, the garment configured to be worn over clothing, the pad configured to wrap around an area of the hip bone in a circumferential manner, the garment including two fastening panels, each configured to face and overlap with the other fastening panel, and fastenable together in a rotatable manner around an axis perpendicular to a fastening plane, a length of the two fastening panels configured to provide a one size fits essentially all wearers.

Use of a bisphosphonate in the preparation of a medicament for the treatment of osteoporosis post hip fracture to prevent or reduce subsequent osteoporotic skeletal fractures in a patient in need of such treatment, and particularly to a patient who has undergone recent repair of the hip fracture and corresponding methods of treatment.

The invention discloses an outer fixing device for minimally invasive surgery. The outer fixing device for minimally invasive surgery is characterized by comprising a fixed frame body. Two sides of the fixed frame body are respectively provided with multiple outer fixing nails. The fixed frame body and the outer fixing nails are made of titanium alloy. As an improvement, the fixed frame body comprises multiple fixed rods which are parallel to each other. Adjacent fixed rods are connected into wholes through multiple sway bracing devices. The outer fixing nails are movably connected on the fixed rods. The titanium alloy fixed rods, the titanium alloy sway bracing devices and the titanium alloy outer fixing nails are used by the outer fixing device for minimally invasive surgery. The sway bracing devices and the outer fixing nails are movably connected on the fixed rods through nuts. The outer fixing device for minimally invasive surgery is good in performance, sufficient in sliding poking effect, capable of effectively maintaining outward expansion position of an end near to a hip fracture, diverse and flexible in adjustment manner, fastened in fixation and suitable for complicated fracture conditions.

The invention provides an external fixing rack for hip fracture, and relates to an instrument for orthopedic external fixation treatment. The external fixing rack for hip fracture is provided with two fixing handles penetratingly fixed with bone screws; at least two universal joints are arranged at the head of the upper fixing handle, the angle between each universal joint and the head of the upper fixing handle can be changed, and each universal joint is penetratingly fixed with one bone screw; at least one universal joint is arranged on the lower portion of the lower fixing handle, the angle between each universal joint and the head of the upper fixing handle can be changed, and each universal joint is penetratingly fixed with one bone screw; and the upper portion of the lower fixing handle is slidably sleeved in a guide groove on the lower portion of the upper fixing handle and is fixed in the guide groove by a jackscrew arranged on the lower portion of the upper fixing handle. The external fixing rack can be used for external fracture reduction repeatedly, has a good and sufficient sliding prizing effect, can effectively maintain the proximal end of the fractured hip of a patient at an external unfolded position, is flexible and various in adjustment mode, and is applicable to complex fracture conditions.

An interlocking intramedullary rod assembly for treating a fracture of a bone, the interlocking intramedullary rod assembly comprising: an intramedullary rod comprising a distal section and a proximal section; a distal interlocking screw comprising a distal end and a proximal end; and a proximal interlocking screw comprising a distal end and a proximal end; wherein the distal section of the intramedullary rod comprises a static distal seat for receiving the distal interlocking screw, and the proximal section of the intramedullary rod comprises a dynamic proximal seat for receiving the proximal interlocking screw; and further wherein the static distal seat is configured to secure the distal interlocking screw to the intramedullary rod such that the distal interlocking screw cannot move relative to the intramedullary rod, and the dynamic proximal seat is configured to secure the proximal interlocking screw to the intramedullary rod such that the angle between the distal end of the proximal interlocking screw and the proximal section of the intramedullary rod can be reduced but not increased. The proximal interlocking screw can provide dual plane compression at the fracture site, which includes linear compression at the fracture site and angular compression at the fracture site. The angular compression can be effected either during the surgery or after the surgery when the patient weightbears.

The invention discloses a process for preparing high-purity minodronate. The process comprises the following process steps: firstly, carrying out ring formation on trans-4-oxo-2-ethyl crotonate and 2-aminopyridine so as to generate 2-(imidazo[1,2a]-3-yl)ethyl acetate, and carrying out hydrolysis so as to obtain 2-(imidazo[1,2a]-3-yl)acetic acid; secondly, reacting 2-(imidazo[1,2a]-3-yl)acetic acid, phosphorous acid with phosphorus trichloride to generate crude minodronate; and finally, refining crude minodronate with hydrochloric acid to obtain a finished product. High-purity minodronate prepared by virtue of the process can be used for effectively treating osteoporosis, and serious diseases such as hip fracture are avoided.