11 results about "Intertrochanteric fracture" patented technology

The invention relates to the technical field of clinical medicine, and discloses an intertrochanteric fracture postoperative progressive rehabilitation system, which comprises an intertrochanteric fracture comprehensive data acquisition module, a dynamic data monitoring module, a rehabilitation scheme generation module, a rehabilitation execution module, a rehabilitation mode adjustment module, a diet structure adjustment module and a rehabilitation interaction feedback module, the intertrochanteric fracture comprehensive data acquisition module is responsible for acquiring static and semi-dynamic data of a rehabilitation full cycle, the dynamic data monitoring module monitors physiological and motion change data of a patient in daily activities in real time, the rehabilitation scheme generation module generates a personalized stage rehabilitation scheme, and the rehabilitation execution module executes a full-process rehabilitation action. The rehabilitation mode adjusting module is used for adjusting a rehabilitation exercise mode, the diet structure adjusting module is used for optimizing a diet structure, and the rehabilitation interaction feedback module is used for collecting feedback so as to correct the scheme.

The device comprises a nail rod, a nail cap and an O-shaped pull strap, a sliding groove is formed in the middle of the nail rod in a penetrating mode, a sliding rod is connected to the inner wall of the sliding groove in a sliding mode, a plurality of mounting grooves are symmetrically formed in the outer wall of the nail rod at equal intervals in a penetrating mode, and the O-shaped pull strap is arranged in the mounting grooves. The mounting grooves extend into the sliding groove and are rotationally connected with auxiliary nails, connecting grooves are formed in the positions, opposite to the auxiliary nails, of the outer wall of the nail rod in a penetrating mode, push blocks are fixedly connected to the outer walls of one sides of the auxiliary nails and extend into the connecting grooves, and one end of the sliding rod extends out of the sliding groove and is fixedly connected with a nail cap. The outer wall of the limiting block is sleeved with an O-shaped pull strap, so that the auxiliary nail abuts against the bone wall of a patient, the friction performance of the sliding rod is improved, the nail cap is limited through the limiting block, the limiting block is sleeved with the O-shaped pull strap, the nail rod is limited through the O-shaped pull strap, and secondary reinforcement is conducted on fractured bone fragments of the patient.

The invention relates to a proximal femur inner side reduction dilator for preventing the wedge effect of intertrochanteric fracture. The proximal femur inner side reduction dilator comprises a central upright post and an ejector rod, a cylindrical insertion rod is formed at the lower part of the central stand column and is used for being inserted and fixed in a reserved fixing hole of an operating bed, and a mounting hole is transversely formed in the upper part of the central stand column in a penetrating manner; the mounting hole extends along the up-down direction of the upper part of the central upright post; a jacking block is mounted in the mounting hole; through friction force between the jacking block and the left side face and the right side face of the mounting hole, the jacking block is statically kept at a preset height position in the mounting hole; a threaded hole is formed in the jacking block in a penetrating manner in the front-back direction; the front end of the ejector rod is rotatably provided with an ejector head assembly, the rear end of the ejector rod is fixedly provided with a wheel-shaped handle, and an external thread is formed in the middle of the ejector rod. The middle of the ejector rod is installed in a threaded hole of the jacking block, and the ejector head assembly extends to the position in front of the jacking block and is used for pressurizing the inner side of the near end of the thigh of a subject to correspond to the thigh lesser trochanter or the inner side cortex projection area.

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 utility model relates to the technical field of traction tripods, and discloses a reduction traction tripod based on hip and thighbone intertrochanteric fracture traction, which comprises a bottom frame, the top of the bottom frame is provided with a support adjusting component used for adjusting angles, the top of the support adjusting component is rotatably connected with a support component used for supporting joints, and the support component is provided with a traction component used for supporting joints. A positioning assembly used for positioning is arranged in the bottom frame. The supporting adjusting assembly comprises two first rotating rings, the interiors of the two first rotating rings are rotatably connected to the left side of the exterior of the bottom frame, the tops of the two first rotating rings are fixedly connected with first connecting rods, and the right side of the exterior of the bottom frame is slidably connected with two sliding rings. According to the utility model, the flexible adjustment of multiple angles of the tripod is realized, so that the angle of the tripod can be accurately adjusted according to the specific physical conditions of different patients, the fracture parts of the patients can be better fitted in the traction process, and an ideal traction effect is achieved.

The invention discloses an intramedullary nail for outer side wall smashing type femoral intertrochanteric fracture, and belongs to the field of medical instruments, the intramedullary nail comprises a main nail, the main nail is connected with a tension bolt through a duct adjusting mechanism, and the main nail is provided with a lock nail; the hole channel adjusting mechanism is arranged on the main screw and used for adjusting the neck-shaft angle of the lag screw, the hole channel adjusting mechanism adjusts and changes the installation angle of the lag screw on the main screw through the structure of the hole channel adjusting mechanism, and then adjustment of the neck-shaft angle of the lag screw is achieved. The lag screw can cross the outer side wall to crush a fracture line, the problem of supporting failure caused by the fact that the screw penetrates through the fracture line in traditional fixation is avoided, meanwhile, the tip end of the lag screw is more accurately embedded into a main pressure bone small beam column (PCS) at the proximal end of the femur, and the holding force of the screw to the femoral head is improved; the main nail and the femoral shaft are tightly fixed through transverse locking, and rotation and axial displacement of the main nail in the medullary cavity are limited.

The invention relates to the technical field of medical instruments, and discloses a bionic support type intramedullary nail system for femoral intertrochanteric fracture, which comprises a main nail body, a bionic support section is fixedly mounted at the bottom of the main nail body, and a tip is fixedly mounted at the bottom of the bionic support section. A limiting rod extending to the left side of the bionic supporting section is movably installed on the right side of the bionic supporting section, and an anti-rotation supporting rod extending to the left side of the main nail body is movably installed on the right side of the main nail body. The side supporting rod assembly is fixed to the main nail body through threads, the stability of the side supporting rod assembly is enhanced, the transverse fixing mechanism is locked through cooperation of a threaded block, a vertical rod and a fixing block, looseness is prevented, the purpose of preventing a transverse tension screw from moving through a stable structure is achieved, and the purpose of arranging a self-locking structure is achieved through arrangement of an anti-rotation mechanism.

The application discloses an intertrochanteric fracture extramedullary fixing structure. It comprises a screw, a strong oblique nail and a steel plate; the steel plate is fixed on the lateral wall of the intertrochanteric fracture; the screw and the strong oblique nail are both fixed on the femur; the screw, the steel plate and the strong oblique nail are located in different planes and form a triangular structure in space; the screw comprises a proximal screw and a distal screw; the proximal screw is fixed on the proximal end of the femur and is arranged in an inclined manner with the steel plate; the distal screw is fixed on the distal end of the femur and is arranged in a perpendicular manner with the steel plate; the strong oblique nail is arranged in an inclined manner with the steel plate. The application overcomes the shortcomings of the conventional steel plate external fixation, i.e. a plurality of screws need to be punched on the femoral neck to fix the fracture and the fixing structure is unstable; the screw, the steel plate and the strong oblique nail form a triangular structure in space, the structure is stable and the number of screws required at the femoral neck is reduced.

The application discloses an intramedullary fixation device for femoral intertrochanteric fracture, which comprises a nail body, a cavity extending along a longitudinal axis from a proximal end to a distal end is arranged in the nail body, a force carrier system is arranged on the nail body to create a dynamic control at a human femoral neck and femoral head to eliminate stress shielding and realize controllable transverse dynamic force, the force carrier system comprises a movable assembly arranged at the proximal end of the nail body and at least one sliding piece arranged at the distal end of the nail body, the movable assembly serves as a main power source of the transverse dynamic force while playing a connecting and fixing role on the femoral neck and femoral head, and the sliding piece is used for the movable connection between the distal end of the nail body and the femoral body. The application can decompose the stress concentration and stress shielding of the locking nail on the intramedullary nail, enhances the bending strength, and realizes the stability of biomechanics. The proximal end of the intramedullary nail is coated with titanium, has a high friction coefficient, provides initial stability and long-term bone ingrowth effect, and can effectively reduce the occurrence of broken nail, bone nonunion and delayed bone healing.

The invention discloses an intertrochanteric fracture navigation method and system, and relates to the technical field of intertrochanteric fracture navigation. The intertrochanteric fracture navigation method comprises the following steps: acquiring medical image data of a side hip joint area, and constructing a three-dimensional digital model; identifying a fracture line and a plurality of key bone anatomical mark points in the three-dimensional digital model; marking a near-end head and neck fracture block and a far-end backbone fracture block in the three-dimensional digital model based on a fracture line in the three-dimensional digital model; the method comprises the following steps: extracting a spatial attribute set between a near-end head and neck fracture block and a far-end backbone fracture block in a three-dimensional digital model on the basis of each key bony anatomical mark point in the three-dimensional digital model. The spatial attribute set between the near-end head and neck fracture block and the far-end backbone fracture block in the three-dimensional digital model is based on the spatial attribute set between the near-end head and neck fracture block and the far-end backbone fracture block in the three-dimensional digital model; and the target virtual implantation channel is automatically planned in the three-dimensional digital model in combination with the preset mechanical bearing area parameters so as to be used for navigation planning suggestions, so that the precision of preoperative navigation planning is realized.

This utility model relates to the field of orthopedic surgical auxiliary instruments, and more particularly to an L-shaped arm fixation device for intertrochanteric fracture traction bed surgery, comprising a positioning rod and a support plate; a support plate for supporting the arm is installed on the outer side of the positioning rod, and a C-shaped clamp for engaging and limiting the position with the headboard is installed at one end of the positioning rod and the support plate; a rubber pad is installed inside the upper end of the support plate, and a grid plate is provided above the rubber pad at the upper end of the support plate; a connecting rod for telescopic adjustment of the position of the support plate is installed inside the positioning rod. This utility model achieves an L-shaped fixation structure by connecting the support plate and the positioning rod with the connecting rod, which is ergonomic and effectively avoids compression of the brachial plexus and ulnar nerve, reduces discomfort such as pain and numbness, and lowers the risk of nerve damage. Furthermore, the use of magnetic buckles to connect the ligaments ensures a clear surgical field, facilitates surgical operation, and improves the safety and precision of the surgery.