46 results about "Right lesser trochanter" patented technology

The invention relates to a device (10) for fixing a femur in hip endoprosthetics, comprising a femur support (18), which has a bent hook part (36) that forms a supporting rest for the femur to be fixed, in the region between the greater trochanter and the lesser trochanter, and which has a shaft (38) connected to the hook part (36), a lever arm (20), which has a column (22) and a cantilever (24) having a receiving portion (26) for attaching the shaft (38), an adjusting device (28) attached to an operating table (12), and a retainer (30), which can be coupled to the adjusting device (28) and to which the column (22) of the lever arm (20) can be attached. The adjusting device (28) has a drive (32) for moving the column (22) in an adjustment plane, which is perpendicular to the lying surface (16) of the operating table (12) and parallel to the longitudinal direction of the operating table. The adjusting device (28) also has an axis of rotation (34) perpendicular to the adjustment plane, about which axis of rotation the retainer (30) can be rotated in the adjustment plane by means of the drive (32) in order to pivot the column (22).

The invention discloses a machine for fixing and repositioning fractured femur lesser trochanter. The machine for fixing and repositioning the fractured femur lesser trochanter comprises a prying deflector rod, an operating seat and a top compression rod, wherein the prying deflector rod is fixed with the operating seat; the top compression rod is parallel to the prying deflector rod and can connected with the operating seat in a telescopic mode; one end of the prying deflector rod is in a circular arc shape; a top compression block is arranged close to the circular arc shaped end of the top compression rod; the outer side of the top compression block is in a circular arc shape; a thread hole is formed in the prying deflector rod; a thread lead hole along the axial line direction of the prying deflector rod is formed between the thread hole and a circular arc shaped end face of the prying deflector rod; and a thread slot is formed in the outer side of the top compression block. The machine for fixing and repositioning the fractured femur lesser trochanter can reduce muscle incision face, lighten wounds of patients and reduce difficulty of lesser trochanter repositioning operation, and meanwhile, ensures that a secondary displacement does not occur due to loosing of the lesser trochanter in the drilling and the implanting steel needle or steel nail process, and improves success rates of an operation.

The invention provides a fusion femoral stem system. The system comprises a bent short handle, a fixing mechanism and a femur head prosthesis, and a conical connection body is arranged at one end of the bent short handle; the conical connection body is connected with a conical connection hole of the femur head prosthesis in a matched mode, the other end of the bent short handle is inserted into and extends into the medullary cavity below the lesser trochanter from the bone cutting surface of the femoral neck, and the bent short handle is fixedly connected with the greater trochanter through the fixing mechanism. The fusion femoral stem system has the advantages that after the whole system operation and the sclerotin on the periphery of the bone bed at the near end of the host thighbone completes ingrowth osseointegration, the applied mechanics influence of the remained femoral neck and the sclerotin close to the lesser trochanter and the greater trochanter is basically close to a pre-operation biomechanics state.

The invention discloses a femoral lesser trochanter fixing device for the clinical orthopedic surgery. The fixing device comprises a lower curved plate, wherein the front end of the upper end surfaceof the lower curved plate is provided with two first elastic bands opposite to each other in the left-right direction, and the rear end of the upper end surface of the lower curved plate is provided with two second elastic bands opposite to each other in the left-right direction, and hooks and loops are arranged on the upper end surfaces of the first elastic bands and the lower sides of the secondelastic bands. The side of the lower curved plate is provided with a ventilation groove, and two fixed rods opposite to each other in the front-back direction are arranged in the middle of the upperend surface of an upper curved plate. The fixing device is simple in structure and convenient to use and capable of avoiding the use of a handle to control the tightness, thereby avoiding adverse effects on drilling caused by the handle and ensuring normal operation of the drilling. A corresponding ventilation device is provided to avoid displacement of the fixing device caused by a large amount of sweat accumulation on the skin surface of a patient and ensure accuracy of the drilling position, so that injury that may be caused to the patient during the lesser trochanter fixing process is reduced.

The invention discloses a lesser trochanter bone block belt loop titanium plate and an assembly thereof. The lesser trochanter bone block belt loop titanium plate comprises a titanium plate body and a thread loop. The titanium plate is a curved surface matched with the surface of a lesser trochanter bone block; two thread loop holes are formed in the titanium plate in a penetrating mode in the thickness direction of the titanium plate, and the thread loop is arranged in the thread loop holes in a penetrating mode; tooth nails are arranged at the two ends of the titanium plate, and the tooth nails are arranged on the concave face of the titanium plate; and a folding mechanism is arranged in the middle of the titanium plate. The assembly comprises a nailing device and an outer side end titanium plate, and the nailing device is provided with a sleeve and a conveying plate; the conveying plate is hinged to the end of the sleeve, and two side plates extend outwards with the hinge point as the center; and the outer side end titanium plate is connected with the titanium plate through the thread loop.

The invention provides a device for femoral angle restoration and verification, comprising: a first guide plate used for biological reconstruction of the femoral neck on the affected side and a second guide plate used for inspection after biological reconstruction, the first guide plate is used to support The lower part of the femoral head has a first structure that fits with the lesser trochanter, the outer wall of the first guide plate is provided with a Kirschner wire channel for the Kirschner wire to pass through, and the Kirschner wire channel runs through the second A guide plate; the second guide plate has a second structure fitted to the lateral part of the femur and a handle part perpendicular to the lateral wall of the second structure. Its advantages are: it will basically not affect the growth and development of children in the later stage, and it can better restore the physiological function of the femoral neck; it can reduce the difficulty of surgery for doctors, thereby reducing the operation time and bleeding volume of patients, which is beneficial to postoperative recovery of patients.

A lesser trochanter fixation device, comprising a fixation forceps and a rivet fixation device; the fixation forceps comprises a first pliers handle, a second pliers handle hinged to the first pliers handle, a support rod connected to the first pliers handle, and a support rod connected to the The sleeve; the rivet fixing device includes a guide rod device, a rivet, and a push rod. The guide rod device includes a connected handle and a guide rod. The front end of the guide rod is provided with a blind hole extending axially to the rear end; The sleeve feeds the rivet into the through hole of the small rotor. The present invention can clamp the lesser trochanter of the femur by cutting a very small operation port on the patient, preventing secondary damage to the patient. Surgical port; After the lesser trochanter is screwed into the rivet, the silk thread is pulled out and tied to the femur, which can easily fix the lesser trochanter firmly on the femur.

The invention provides a system for customizing an individualized artificial total hip joint replacement operation femur preparation template. The system comprises a femur neck osteotomy guide plate, a femur prosthesis anteversion and lateral border guide plate, the interior surface of the femur neck osteotomy guide plate is matched with a femur head, a femur neck, and a femur intermediate zone between a greater trochanter and a lesser trochanter in anatomic shape, the femur neck osteotomy guide plate is provided with an osteotomy positioning groove, the bottom of the femur prosthesis anteversion and lateral border guide plate is matched with a femur neck osteotomy surface in shape, the femur prosthesis anteversion and lateral border guide plate comprises a body, a lesser trochanter positioning wing and a front side wing, the lesser trochanter positioning wing and the front side wing are arranged on the body, and the body is provided with an anteversion and lateral border guide groove. According to the invention, the position of the ideal artificial total hip joint femur prosthesis in a human body can be controlled accurately, and furthermore the operation effect can be improved.

The invention relates to an arc-shaped steel plate for fixation of intertrochanteric fracture and subtrochanteric fracture, belonging to the technical field of implants in human bodies. The arc-shaped steel plate for fixation of fracture is composed of a main plate and an arc-shaped plate, wherein the arc-shaped plate is manufactured at one side of the main plate, the main plate and the arc-shaped plate are integrated through arc transition, and the main plate and the arc-shaped plate are laminated and fixed with the femur through screws. According to the invention, by additionally arranging the arc-shaped plate at one side of the main plate, a screw implanting area at the front outer side or front side of the femur can be effectively utilized, six or more than six lock holes fixed to the femoral head through the femoral neck can be selected, neck built-in screws are dispersed, and the arc-shaped plate shares the stress of the main plate, so that the fracture reduction and fixation effect and plate support degree of the inner rear side of intertrochanteric fracture are improved; and the arc-shaped steel plate for fixation is wide in range of application, can be used for all stable and unstable intertrochanteric fracture and subtrochanteric fracture, splintered fracture of the medial femoral calcar and lesser trochanter as well as fracture of the femoral neck, is capable of effectively reducing the risks of coxa vara, coxa rotation, screw breaking and plate breaking, and is simple and convenient to install as well as safe and stable in use.

The invention discloses a multifunctional water meter, which is characterized in that it comprises a casing, a large flow metering chamber, a hardware chamber and a small and micro flow metering chamber, the casing is provided with a water pipe inlet and a water pipe outlet, and the water pipe The connection outlet is connected with the small and micro flow metering chamber, and the large flow metering chamber is connected with the small and micro flow metering chamber through an electric control valve. A generator and an impeller driving the generator to rotate are arranged in the large flow metering chamber. A large rotor flowmeter and a small rotor flowmeter are arranged in the small and micro flow metering cavity, a correction shaft is arranged in the large rotor flowmeter, the large rotor in the large rotor flowmeter is set on the correction shaft, and the The aperture of the large rotor flowmeter gradually decreases from top to bottom, and the aperture of the small rotor flowmeter gradually increases from top to bottom, and a signal processing module is arranged in the hardware room. The invention has the advantages of simple structure and convenient manufacture, adopts large rotor flowmeter and small rotor flowmeter to measure small and micro flows, and has high measurement accuracy.

The invention provides a thighbone lesser trochanter fixator which comprises two linear type handles which are connected through a hinge, wherein the two linear handles are respectively provided with an arc-shaped cover, an opening of one arc-shaped cover faces the other arc-shaped cover, a through hole is formed in each arc-shaped cover, a sleeve is installed on the through hole of one arc-shaped cover, and one end of each linear handle, away from each arc-shaped cover, is provided with a limiting strip. The fixator can effectively fix the thighbone lesser trochanter, meanwhile can improve precision of punching of an electrical drill, and is beneficial for proceeding of an operation.