37 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 in the supra-acetabular position and a rigid, subcutaneous anteriorly bowed elongated plate is 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 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.

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.

The instant invention is a novel method for stabilization of the posterior pelvis (iliosacral) when treating an unstable pelvic ring fracture. Cannulated screws are inserted through the posterior of the ilium through the sacroiliac joint and into the sacrum. The screws are used to affix the iliosacral joint while it heals. The screws are used in conjunction with a bone plate (through which the screws pass) to provide the construct / fixation with added strength and stability compared to iliosacral fixation using screws alone.

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 relates to a total sacrum artificial prosthesis. The total sacrum artificial prosthesis comprises a coloboma body connected among the bone cutting end of a lumbar vertebral body, the bone cutting end of a left ilium and the bone cutting end of a right ilium, the coloboma body is provided with three contact faces, the contact face making contact with the bone cutting end of the lumbar vertebral body is a vertebral body contact face, the contact face making contact with the bone cutting end of the left ilium is a left ilium contact face, the contact face making contact with the bone cutting end of the right ilium is a right ilium contact face, and the vertebral body contact face, the left ilium contact face and the right ilium contact face are all of a porous structure; a hollow inverted-Y-shaped soft tissue adhering part is formed among the vertebral body contact face of the coloboma body, the bone cutting face of the left ilium and the bone cutting face of the right iliumm, and the soft tissue adhering part is also of a porous structure; the coloboma body is further provided with a plurality of fixing holes, and the coloboma body is fixed among the bone cutting end of the lumbar vertebral body, the bone cutting end of the left ilium and the bone cutting end of the right ilium through fixing elements. The inverted-Y-shaped design closest to the human body bone structure is adopted, reconstruction of the three aspects of the waist-the ilium, a posterior pelvic ring and anterior vertebrae fusion can be achieved, triangular supporting is achieve so that the most stable mechanical environment can be achieved, bone fusion can be achieved, and remarkable improvement can be achieved in the aspects of recent structure restoration and functions and living quality of patients in the future.

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 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 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 discloses a tractor for the greater trochanter of the femur, which comprises a pulling screw and a traction ring, the pulling screw is provided with a transverse passage through which a guide needle can pass, the traction ring is connected with the end of the pulling screw, and the longitudinal height of the traction ring is greater than the diameter of the pulling screw. The tractor for the greater trochanter of the femur provided by the invention has a simple and ingenious structure, is convenient to use, is applicable to cases such as the displaced pelvic ring fracture, the central dislocation of the hip joint and old posterior hip joint dislocation accompanied by fractures around the knee joint or skin and soft tissue infection around the knee joint, and also is suitable for continued traction when the traction of the tubercle of the tibia is too long, traction screws are loose or screw holes are infected and the traction screws have to be replaced.

The invention relates to an orthopedic device in vitro for human adolescent scoliosis, and particularly relates to an adjustable combined scoliosis support. The adjustable combined scoliosis support is composed of a shoulder ring, a pelvic ring, an elastic plate and a support plate, the vertically arranged elastic plate detachably connects the rear part of the shoulder ring with the rear part of the pelvic ring, the vertically arranged support plate detachably connects the front part of the shoulder ring with the front part of the pelvic ring, the elastic plate can ensure continuous pressure on a top vertebra area, dynamic and continuous pressure orthopedics is achieved, and the orthopedic effect is improved; and shapes and sizes of the shoulder ring, the pelvic ring, the support plate andthe elastic plate are all obtained from data scanned by CT of a patient, 3D printed and formed for one time according to body data of the patient. The adjustable combined scoliosis support only touches key parts of a body, a covering area of a trunk is greatly reduced, the permeability is improved, the size and the area of the support are reduced, the support is easily covered by clothes on the outside, is comfortable, attractive and efficient, is easy to be accepted and cooperatively used by a child patient, and easy to assemble and wear, and the ability to correct scoliosis is improved.

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 fixationdriven 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 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.

The application relates to a three-dimensional adjustable bone-integrated half-pelvis prosthesis, which comprises a split assembled customized sacrum bone-integrated base, an acetabular cup assembly, a customized pubic bone-integrated base, a sacrum side pelvis ring support assembly and a pubic side pelvis ring support assembly; one end of the customized sacrum bone-integrated base is connected with the sacrum, and the other end is connected with the acetabular cup assembly through the sacrum side pelvis ring support assembly; one end of the customized pubic bone-integrated base is connected with the healthy pubic bone, and the other end is connected with the acetabular cup assembly through the pubic side pelvis ring support assembly; when the acetabular cup assembly, the sacrum side pelvis ring support assembly and the pubic side pelvis ring support assembly are assembled, the anteversion angle of the acetabular cup assembly can be adjusted relative to the sacrum side pelvis ring support assembly and the pubic side pelvis ring support assembly. The half-pelvis prosthesis and the pelvis of the patient constitute a complete and stable pelvis ring structure, the stability of the half-pelvis prosthesis is improved, and the accuracy and convenience of the prosthesis installation during the operation are greatly improved.

A pelvic fixation device for preventing loosening, comprising an elastic wearing unit (10), a first connection unit (20), a second connection unit (30), a first adjustment unit (40), a second adjustment unit (50), and a locking unit (60). The advantages of the pelvic fixation device for preventing loosening lie in that the elastic wearing unit (10) is used to fix a pelvic ring of a patient and upper and lower regions thereof, such that the cleaning of excreta from the buttocks of the patient and the observation of pressure ulcers are facilitated, and the pelvic fixation device does not need to be unlocked during excretion, thereby enabling long-term maintenance of the stability of the patient's pelvis; and the first adjustment unit (40), the second adjustment unit (50) and the locking unit (60) are used in cooperation to adjust and secure the tightness of the elastic wearing unit (10), thereby applying pressure to and fixing the elastic wearing unit (10). The pelvic fixation device is simple and flexible in operation, and facilitates the first connection unit (20) and the second connection unit (30) in fixing the elastic wearing unit (10) to an affected area.

The invention discloses a multi-dimensional malformation correction traction device for the spine orthopedics department, and relates to the field of medical equipment. The device mainly comprises a head fixing structure, a waist fixing assembly and a spine correction assembly. The head fixing structure comprises a head-basin ring, a head fixing part and an air bag, the head fixing part penetrates through the head-basin ring, a groove is formed in the bottom of the head-basin ring, and the air bag is arranged in the groove; the waist fixing assembly comprises an adjusting structure and a connecting structure, and the adjusting structure comprises a pelvic ring and an adjusting frame; the pelvic ring and the adjusting frame are symmetrically arranged, the pelvic ring and the adjusting frame are connected end to end to define a circular ring structure, and the connecting structure is used for connecting the pelvic ring and the adjusting frame; the spine correction assembly comprises a correction mechanism and a fine adjustment mechanism, the fine adjustment mechanism comprises a first mounting frame, a first adjusting seat, a second mounting frame and a second adjusting seat, the correction mechanism is arranged between the first adjusting seat and the second adjusting seat, and the correction mechanism can stretch out and draw back so that the first adjusting seat can be close to or away from the second adjusting seat.

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.

The invention is applicable to the field of medical instruments, and provides a three-dimensional traction device capable of being used for pelvis reduction. The three-dimensional traction device comprises a bed body, a movable reduction traction mechanism and a headrest piece, wherein the movable reduction traction mechanism comprises an ankle sleeve for downwards pulling the ankle of a patient, a reduction traction assembly for upwards pulling the armpit and the sacroiliac joint of the patient, and a lifting transmission assembly for driving the reduction traction assembly to ascend and descend; and the headrest piece is mounted at one end, far away from the ankle sleeve, of one side of the bed body. According to the three-dimensional traction device capable of being used for pelvis reduction, the movable reduction traction mechanism and the headrest piece are arranged, so that the whole body of the patient can be suspended by taking the pelvis as the center, the traction force can act on the pelvis ring, on the basis, the traction in three directions can be carried out at the same time, the whole pelvis ring can be integrally reduced, and through continuous long-time traction, the spasm of soft tissues can be relieved while the pelvis is reduced.

A symphysis plate is provided for correcting or preventing separation of the anterior pelvic ring. In use, the plate is positioned superiorly over the pubic symphysis and anterior pelvis. It includes a pubis section that is curved in top view to match the natural contour of the anterior pelvic bones, either before separation or after repositioning. The plate also features one or more terminal sections extending from the pubis section, each ending in a terminal fixation point oriented toward the supra-acetabular bone. Multiple connection points are incorporated to receive fixing elements that secure the plate to both the pubis and terminal sections. The terminal fixation points are specifically configured to guide fixing elements along a trajectory that is substantially parallel or co-axial with the horizontal plane of the pubis section and the undersurface of the terminal sections.