9 results about "Trochanter" patented technology

To provide a fracture treatment fixation device for femoral fractures, enabling further reliable treatment of fractures of proximal femur.SOLUTION: A fracture treatment fixation device for treating femoral fractures includes: an intramedullary nail to be inserted into a femoral cavity; a lag screw disposed to penetrate the intramedullary nail diagonally upward and entering a femoral head and a femoral neck; an anterior wall plate to be applied to an anterior wall of a femoral trochanter; and an anterior wall plate fixation pin disposed to penetrate the intramedullary nail and secure the anterior wall plate to the anterior wall of the femoral trochanter.SELECTED DRAWING: Figure 1

The utility model discloses an in-vitro sighting device for femoral trochanter fracture, and relates to the technical field of fracture surgical instruments. Comprising a matching frame, an extension structure, a guide cylinder and a developing needle, the matching frame is U-shaped, the corner of the matching frame is of a right-angle structure, the opening of the matching frame is placed towards one of two sides, a matching hole is formed in a middle plate between two side plates of the matching frame, the extension structure is arranged on the upper side of the matching frame, and the guide cylinder is arranged on the extension structure. The extending structure extends in the direction away from the matching frame, a guide cylinder is arranged on the extending structure and is arranged in the opening direction of the matching frame, a sliding hole is formed in the central axis of the guide cylinder, and a developing needle is slidably connected into the sliding hole of the guide cylinder; through cooperation of the matching frame and the sighting device and the height of the extension structure, the developing needle in the guide cylinder is higher than the front side of the thigh and corresponds to the position of the guide needle to be placed through the sighting device, the position of the guide needle is prompted in a perspective mode, and damage to a patient caused by wrong position and repeated placement of the guide needle is avoided.

An orthopedic device is provided for treating complications of the hip and has means for trochanter compression, pelvis support, lumbar compression, variously directed straps, and thigh support. The trochanter compression and an internal / external rotation strap provide pain relief through compression and skin protection, unloading of joints through compression and sealing, and unloading by load transfer. Means for adjustably dosing of straps enables pain management and ease of use.

The application discloses a prosthesis system for minimally invasive femoral head replacement, which comprises a bone cutting assembly, a prosthesis, an extension rod, a guide frame and a locking nail. In the operation, only a small opening is needed on the lateral side of the femoral neck, and then a channel is established, and the prosthesis is implanted in the channel, so that the degree of trauma, the operation time and the blood loss are greatly reduced. A detachable extension rod is arranged on the implanted prosthesis, and after the extension rod is positioned by cooperating with the guide frame, the extension rod can guide the path of the locking nail, so that the locking nail is connected with the prosthesis, and is fixed with the large and small trochanters of the patient, so that the prosthesis can be combined with the relatively hard bone and the surface layer of the femoral neck to achieve stable combined support and avoid loosening of the prosthesis.

The utility model relates to a femoral trochanter vertex auxiliary needle inserting device which comprises a positioning body (1), a needle inserting opening (2) is formed in the top face of the positioning body (1), and a needle inserting channel (3) corresponding to the needle inserting opening (2) is formed in the positioning body (1) in a penetrating mode in the needle inserting direction. And the bottom surface of the positioning body (1) is an inner concave curved surface (4) which fits the radian of the vertex of the greater thighbone tuberosity. Compared with the prior art, the auxiliary needle inserting device for the femoral trochanter top can assist in positioning the needle inserting point of the femoral trochanter top, and directional needle inserting is carried out through the needle inserting channel.

The resettable anti-rotation implant is characterized in that the resettable anti-rotation implant comprises an outer sleeve and a pressurizing rotating shaft, a front screw hole and a rear screw hole are formed in the head and the tail of the outer sleeve respectively, and the thread directions of the front screw hole and the rear screw hole are opposite; the pressurizing rotating shaft is inserted into an inner hole of the outer sleeve and is in threaded connection with a front screw hole and a rear screw hole of the outer sleeve at the same time, a plurality of axial long grooves are formed in the front end of the outer sleeve in the circumferential direction of the outer sleeve and divide the outer sleeve into a plurality of expansion elastic pieces, and the expansion elastic pieces are expanded by rotating the pressurizing rotating shaft. The head and the tail of the outer sleeve horizontally move in the opposite directions at the same time, so that the expansion elastic pieces on the outer sleeve expand outwards at the same time, and the holding force of the outer sleeve on the femoral neck is increased. The femoral head cancellous bone repositor has higher holding force in the bone substance of the femoral head cancellous bone, and can be used for repositioning a fracture separation part in a rotating and push-pull manner.

The invention discloses a hip joint prosthesis system, and relates to the technical field of medical instruments. The hip joint prosthesis system comprises a main prosthesis which is arranged at a bone resection position; the connecting prosthesis is arranged between the acetabulum and the main prosthesis; the hook plate is detachably arranged on the main prosthesis through a connecting assembly, and the inner wall of the hook plate is used for being attached to the outer wall of the greater trochanter; the broach is fixedly arranged at the bottom of the main prosthesis, and the broach is used for being inserted into a medullary cavity; the adjusting assembly is used for adjusting the diameter of the broach. A large number of specifications and different types of prostheses and different instruments for implantation do not need to be prepared in advance, the operation time is shortened, the exposure time of a patient is prevented from being too long, complications such as infection and thrombus are reduced, the bone retention amount in a medullary cavity is greatly increased, the fixing stability of the prostheses after long-time use is prevented from being reduced, and the use safety of the prostheses is improved. Therefore, according to the hip joint prosthesis system, the suitability of the hip joint prosthesis is improved under the condition that a patient is not affected.

This invention provides a fracture treatment fixation device for femoral fractures that can more reliably treat proximal femoral fractures, including cases where the posterior wall portion is not separated. [Solution] A fracture treatment fixation device for treating a femoral fracture, comprising: an intramedullary nail inserted into the femoral cavity; a lag screw positioned to penetrate the intramedullary nail diagonally upward and enter the femoral head and femoral neck; an anterior wall plate applied to the anterior wall of the femoral trochanter; and an anterior wall plate fixing pin positioned to penetrate the intramedullary nail and to fix the anterior wall plate to the anterior wall of the femoral trochanter, wherein the anterior wall plate fixing pin is configured to be screwable into the intramedullary nail.

The utility model belongs to the technical field of orthopedic medical instruments, and provides a thighbone trochanter extramedullary positioning V-shaped osteotomy device, which comprises two groups of V-shaped osteotomy modules, the two V-shaped osteotomy modules are arranged in the same direction, position fixing hole pieces are arranged on the two V-shaped osteotomy modules, the position fixing hole pieces are matched with kirschner wires, and the kirschner wires are matched with the position fixing hole pieces. A V-shaped osteotomy groove is formed between the top and the bottom of the V-shaped osteotomy module in a penetrating manner; the positioning assembly comprises a sliding rail, an anti-skid piece is arranged at the bottom end of the sliding rail, a sliding groove is formed in the top of the sliding rail, two sets of connecting rods are connected into the sliding groove in a sliding mode, the two connecting rods are vertically arranged, position measuring pieces are arranged between the connecting rods and the sliding rail, and the two V-shaped osteotomy modules are detachably connected to the two connecting rods. According to the utility model, the osteotomy length can be adjusted according to the condition of a patient, the anti-rotation capability of an osteotomy part is improved, and the surgical operation accuracy and simplicity are improved.