32 results about "Pelvic ring" patented technology

The instant invention is a novel method for definitive pelvic stabilization. The method uses the already established principles of anterior external fixation combined with internal hardware placed in a minimally invasive fashion. Pedicle screws are affixed to the ilia and a rigid, bowed fixation rod is connected between the pedicle screws. Preferably the pedicle screws are attached to the supra-acetabular area of each of the ilium of the pelvis and the fixation rod is bowed anteriorly away from the pelvis.

The instant invention is a novel method for construct for temporary or definitive pelvic stabilization. The method uses the already established principles of anterior external fixation combined with internal hardware placed in a minimally invasive fashion. Fixation means are affixed to the ilia and both a rigid, subcutaneous anteriorly bowed elongated plate and a subcutaneous posterior plate are connected between the fixation means.

The instant invention is a novel method for construct for temporary or definitive pelvic stabilization. The method uses the already established principles of anterior external fixation combined with internal hardware placed in a minimally invasive fashion. Fixation means are affixed to the ilia in the supra-acetabular position and a rigid, subcutaneous anteriorly bowed elongated plate is connected between the fixation means.

Apparatus and methods for stabilizing a fractured pelvis in an emergency using a sling having a buckle designed to automatically lock the circumference of the sling at a tension level that has been predetermined to be effective for stabilizing a fractured pelvis without excessive or potentially damaging compression.

The instant invention is a novel method and apparatus for minimally invasive treatment of unstable pelvic ring injuries combined with fixation of acetabular cup assemblies for total hip arthroplasty. Fixation means and acetabular cup assemblies are affixed to the ilia and subcutaneous anteriorly bowed elongated rods/plate including possibly a subcutaneous posterior plate are connected between the fixation means.

A multiaxial combined and matched type anti-infection semi-pelvic false body comprises an acetabulum and net cup plate wing which is arranged on the top of the acetabulum and can be fixed on a reserved hip bone wing. Two to three universal joints are arranged on the back of the net cup plate wing. The universal joints are opened with a card slot which can be connected with a universal bar. The invention can arbitrarily adjust the height and the point of view of the acetabulum through the combination of the universal joints and the acetabulum to realize the truly anatomical location reconstruction of the hip joint which is not affected by the resection range. The reconstruction of the connection of the pelvic ring and the acetabulum takes the way of universal multi-axis in order to conveniently adjust the location of the acetabulum, thereby assuring the coherence of the limb length after being reconstructed. The location of the acetabulum can be adjusted according to the removal situation of the soft tissue in the operation. Through the sacrum and the contact point of the universal screw of the ischiopubic multi-axis point driven into the pelvic ring, especially multi-nail fixation driven into the lumbar, the hardening stress can be scattered, the hardening stress concentration can be reduced to reduce the complicating disease such as looseness and broken nails.

The invention discloses a halo-pelvic ring traction device. The halo-pelvic ring traction device is characterized by comprising a head bracket, a pelvic bracket, and support rods connected between the head bracket and the pelvic bracket, wherein the head bracket comprises a ring article, a harnpan fixing needle transversely arranged along a ring of the ring article, and a connector connected to two ends of the annular article, wherein the pelvic bracket comprises a hoop article and two pelvic bone needles fixed on the hoop; the two pelvic bone needles are arranged at an acute angle, and more than three support rods are provided and arranged along the hoop of the hoop article. Compared with the prior art, the halo-pelvic ring traction device has the advantages that cervical fracture and dislocation and severe spinal deformity can be treated under the condition that a sufferer does not need to lie in bed.

The invention discloses a hinge-type skull pelvic ring. The ring includes a connecting rod assembly, the upper end of the connecting rod assembly is connected with a skull ring assembly, the lower end of the connecting rod assembly is connected with a pelvic ring assembly, the connecting rod assembly includes a forward-direction and backward-direction threaded rod , and both ends of the forward-direction and backward-direction threaded rod are connected with a locking frame body, wherein one end of a ball-headed rod is in spherical joint with each locking frame body, and the other end of the ball-headed rod is rotatably connected to one end of an adjusting sleeve the other end of which is rotatably connected with a crooked rod; the skull ring assembly comprises a skull ring, and the pelvic ring assembly includes a pelvic ring which is composed of two semi-circular rings matched with each other; the skull ring and the pelvic ring are both connected to the crooked rod through a hook assembly which is composed of a hook, and the hook is in spherical joint with the crooked rod. The hinge-type skull pelvic ring can achieve adjustment of an arbitrary space position, and is capable of well adapting to abnormal shapes of the backs of different patients, avoiding problems of irregularity and easy springback in manual shaping, effectively shortening operation time, reducing operation difficulty and providing more convenience for popularization.

The invention discloses an integral external fixator for anterior and posterior pelvic rings. The integral external fixator comprises an anterior ring fixing area and a posterior ring fixing area, wherein the anterior ring fixing area comprises a first fixing structure, a second fixing structure and a third fixing structure; the posterior ring fixing area comprises a C-shaped frame; a fourth fixing structure and a fifth fixing structure are arranged at the upper end of the C-shaped frame; and the fourth fixing structure and the fifth fixing structure are separately connected with the anteriorring fixing area, so that anterior and posterior pelvic rings can be effectively connected to form integral overall fixation of the anterior and posterior rings. The integral external fixator is convenient to apply, adopts a supine position, and can treat a posterior pelvic ring fracture through a posterior approach without rolling over, so as to reduce a secondary injury. The external fixator hasan adjustable compression effect, and performs compression in a vertical direction and a horizontal direction through adjustment at the same time, so as to achieve fracture reduction and compressionfixation; and the integral external fixator can achieve early, minimally invasive, rapid and effective external fixation for wounded personnel with multiple pelvic fractures, especially combined anterior and posterior ring fractures.

The invention relates to the technical field of medical devices, particularly to a posterior pelvic ring fracture minimally-invasive fixator which is used for the fixation of unstable posterior pelvic ring fractures such as sacroiliac dislocation or sacrum fractures. The posterior pelvic ring fracture minimally-invasive fixator is composed of a connection rod and fixing screws. The connection rod comprises a left connection rod (1) and a right connection rod (2), the left connection rod and the right connection rod are respectively composed of a threaded portion and an unthreaded portion and are connected into a whole through the connection of a threaded portion (3) and a threaded portion (4). The unthreaded portions at both ends of the connection rod are respectively provided with screw holes A and screw holes B, a needle guide channel is arranged in the center of the connection rod, and the tail end of the fixing screw (6) is a nut (7). The posterior pelvic ring fracture minimally-invasive fixator is simple in structure, easy to operate, minimal in invasion, beneficial to the healing of a wound and good in counter-rotation effect, can provide a reliable reduction fixation, and can effectively fix unstable posterior pelvic ring fractures such as the sacroiliac dislocation and the sacrum fractures, thereby facilitating restoring to a normal anatomical structure.

Implantable devices for fixation of curved bones such as the pelvic ring pubic symphysis and acetabulum, and methods for the use of the devices are disclosed. The implantable devices are convertible between a flexible state and a rigid state using a shape locking section. The implantable devices further include a main body and a distal bone interface. In a flexible state, the devices may be inserted along, and conform to a curved pathway, and in the rigid state, the devices may support the mechanical loads required to fixate a fracture.

The invention discloses a head pelvic ring traction frame, relates to the technical field of traction equipment, and solves the problems that after a common head pelvic ring traction frame at present is used, the whole traction frame needs to be disassembled for cleaning, the disassembly process is complicated, maintenance and cleaning are very troublesome, maintenance is inconvenient, and the practicability is reduced. The utility model discloses a head pelvic ring traction frame which comprises a supporting frame. Guide rails are arranged on the inner sides of the supporting frames, and lifting blocks are slidably arranged outside the guide rails through sliding blocks. A connecting frame is fixedly arranged at the top of the lifting block; and rolling wheels are rotationally arranged at the two ends of the connecting frame. A rotating screw rod C is used, the screw rod C drives a clamping plate to move inwards, a connecting and fixing block makes contact with limitation, then a traction frame is detached, the traction frame is cleaned and disinfected, the traction frame is conveniently maintained, and the practicability of the traction frame is improved.

The invention relates to threaded joints for supporting and stabilizing a rear fracture of the pelvic ring or for stabilizing and stiffening the sacroiliac joint, either with a threaded bar in connection with threaded nuts or a screw in connection with the sacrum. The threaded joints are characterized by secure support and stabilization of a rear fracture of the pelvic ring or by secure stabilization and stiffening of the sacroiliac joint. The threaded joint as an implant is, for this purpose, either a threaded bar in connection with threaded nuts for supporting the rear fracture of the pelvicring or a screw in connection with the sacrum. For this purpose, there is a washer between the ilium and the threaded nut or the screw head, the side of the washer that faces the ilium being mutuallyoblique in at least two planes and the oblique surfaces being arranged at an angle to each other. The washer has an opening for the passage of a region of the threaded bar or of the screw, the opening being expanded toward the ilium.

The invention provides a pelvic ring bone plate, and relates to the technical field of medical instruments for orthopedic surgery, the pelvic ring bone plate comprises a pubis section, an acetabulum section and a sacroiliac joint section which are sequentially connected into a whole, the pubis section and a part of the acetabulum section at the upper part of a closed hole of a pelvis can be attached to the inner side of a pelvic ring, and the rest part of the pelvic ring bone plate can be attached and fixed along the pelvic ring ridge line. According to the pelvic ring bone plate, multiple fractures of the pelvis can be treated at the same time, the mechanical structure is stable, bone displacement is effectively avoided when a patient moves, and complications are effectively reduced.

The invention relates to a sacrum and pubis bilateral osseointegration semi-pelvic prosthesis which comprises a sacrum side component, a pubis side component and an acetabulum component connecting the sacrum side component and the pubis side component, and the sacrum side component, the pubis side component and the acetabulum component are of an integrated structure. A pubis screw hole, a sacrum transverse screw hole and a sacrum dorsal side screw hole are formed in a pubis joint face, a sacrum ear-shaped face section and a sacrum back face respectively, a pubis screw is implanted into the opposite side pubis through the pubis screw hole, and a sacrum transverse locking micropore screw is transversely implanted into the sacrum in a first sacrum vertebral body and a second sacrum vertebral body through the sacrum transverse screw hole. A sacrum dorsal screw is horizontally implanted into the sacrum from the dorsal side to the ventral side above the sacrum wing through the sacrum dorsal screw hole and the first sacral hole and the second sacral hole; a plurality of soft tissue attachment points are arranged on the sacrum side component and the pubis side component. The pubic symphysis is formed by utilizing the pubic lateral component, a complete pelvic ring structure is formed, shear stress can be effectively resisted, and stability and patient prognosis are good.