703 results about "Sagittal plane" patented technology

In the osteosynthesis device of the invention, the elastically deformable connection system comprises: a deformable connection member presenting: in a "sagittal" plane, determined stiffness for exerting a return force on flexion-extension movements between the fixing portions; in a "frontal" plane perpendicular to the sagittal plane, determined stiffness for exerting a return force on lateral inflexion movements between the fixing portions, the stiffness of the deformable connection member in the frontal plane being less than its stiffness in the sagittal plane; and along an axis defined by the intersection between the sagittal and frontal planes, determined stiffness for exerting a return force on traction-compression movements between the fixing portions; and means for limiting flexion-extension, traction-compression, and lateral inflexion movements between the fixing portions.

Prosthetic intervertebral discs, systems including such prosthetic intervertebral discs, and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components, construction, and other features of the discs.

An anterior spinal implant includes a superior end face, an inferior end face and a sidewall extending between the superior end face and the inferior end face. The superior end face and the inferior end face are convex. In one application, the superior and inferior end faces are convex. The sidewall includes a convexly curved leading portion, a convexly curved trailing portion and a pair of substantially planar side portions. The superior and inferior end faces transition in a sagittal plane from a first radius of curvature to a second radius of curvature. The first radius of curvature is smaller than the second radius of curvature. The apexes of the superior and inferior end faces are offset from a center of the implant.

The invention concerns a prosthesis wherein the contact surfaces of the femoral part (i), the insert (3) and the knee joint are defined by the combination of two curves, a spiral-type curve in the saggital plane following an undulating curve (sinusoidal) in the frontal plane. The latter comprises two concave lateral parts and a central dome-shaped convex part, the three parts being connected without any angulation, protuberance, or flat parts or bends and providing continuous medio-lateral contact on the three zones, from complete extension to complete bending, and a concave-convex nesting in the central zone.

Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising:

• • cutting apparatus for forming an osteotomy cut in the tibia, the cutting apparatus comprising:
    • targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient.

A method for performing an open wedge, high tibial osteotomy, the method comprising:

• • positioning targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient;
  • cutting the bone along the cutting plane, with the cut terminating at the boundary line;
  • moving the bone on either-side of the cut apart so as to form the wedge-like opening in the bone; and
  • stabilizing the bone.

The present invention relates in general to taking geometrico-morphological measurements on a subject. More particularly, the invention relates to a method of measuring the position of a remarkable point of the subject's eye. The method includes amongst others, the steps of capturing images in different relative postures (APIV1, APIV2, (O1,X1,Y1,Z1), (O2,X2,Y2,Z2)) of a subject, identifying reference points of the eye ((RCG1, RCD1), (RCG2, RCD2)), and calculating the remarkable point (CROD, CROG) as a function of the captured images. The values of the posture parameter (APIV) are obtained by a position-identification element (60, 70, 80, 700, 800) having at least one known geometrical characteristic that is placed on the subject's head. Each captured image contains a representation of said position-identification element (60, 70, 80, 700, 800). The posture parameter is thus calculated as a function of these images and of the known geometrical characteristic.

An iris image definition estimation system using the astigmatism of the corneal reflection of a non-coaxial light source to assess both the resolution of the iris patterns and the direction of focus adjustment. The corneal reflection results in two virtual images on the meridional and the sagittal planes. These virtual images are formed behind the cornea and close to the iris. Yet, both are projected onto the same location and result in a composite glint area. In addition, the shape of the glint area of a non-coaxial light source varies with different camera focus settings. Furthermore, due to the high intensity of the glint area, the shape can be easily observed, and the size and the shape of the glint area can be used to determine the resolution of the iris image and the direction of focus adjustment, respectively.

An implant for treating rectocele and/or prolapsus of the vaginal fornix is thin and flexible and includes a support body from which there extend at least two upper suspension stabilizers disposed on either side of a sagittal plane and two lower suspension stabilizers disposed on either side of the sagittal plane. The implant may be constructed from a suitable biocompatible material such as a woven synthetic material, or a knitted material of polypropylene or polyester fibers.

A disk prosthesis includes first and second plates (2, 3) to be fixed on neighboring cervical vertebrae and an articulation arrangement (7) inserted between the two plates in a superposed position. The articulation arrangement allows for flexion-tension movements in a sagittal plane (S) according to a limited clearance, lateral inflexion movements in a plane perpendicular to the sagittal plane (S) according to limited angular clearance, and relative rotation movements between the first and second plates according to a limited angular clearance. The first and second plates are assembled to form a prosthesis of a single piece.

The present invention is directed to an implant that can be placed between two adjacent vertebral bodies using a lateral insertion method. The implant is characterized as having a first end plate and a second end plate which a crossbar spacer therebetween. The crossbar spacer preferably fits within a channel on the inner surfaces of the first end plate and the second end plate, whereby the crossbar spacer allows pivots, twisting and/or rotational movement of the spine. The first end plate and the second end plate include a keel extending therefrom, whereby the keel traverses longitudinally between a first lateral side and a second opposed lateral side and is substantially perpendicular to the sagittal plane of the patient's spine.

A technique for detecting and localising vascular occlusions in the brain of a patient is presented. The technique uses volumetric angiographic data of the brain. A mid-sagittal plane and/or lines is/are identified within the set of angiographic data. Optionally, the asymmetry of the hemispheres is measured, thereby obtaining an initial indication of whether an occlusion might be present. The angiographic data is mapped to pre-existing atlas of blood supply territories, thereby obtaining the portion of the angiographic data corresponding to each of the blood supply territories. For each territory (including any sub-territories), the asymmetry of the corresponding portion of the angiographic data about the mid-sagittal plane/lines is measured, thereby detecting any of the blood supply territory including an occlusion. The angiographic data for any such territory is displayed by a three-dimensional imaging technique.

The present invention is suitable for use in determining symmetry in images, namely 2D images or 3D images, which comprise 2D images slices. In a preferred form, a method is disclosed for extracting a midsagittal plane MSP of human brains from radiological images. The method includes the steps of: 1) determining axial slices to be processed from said radiological images; 2) analysing said axial slices to determine fissure line segments; and 3) calculating plane equation of MSP from said fissure line segments.

Methods and related systems are described for detection of breast cancer in 3D ultrasound imaging data. Volumetric ultrasound images are obtained by an automated breast ultrasound scanning (ABUS) device. In ABUS images breast cancers appear as dark lesions. When viewed in transversal and sagittal planes, lesions and normal tissue appear similar as in traditional 2D ultrasound. However, architectural distortion and spiculation are frequently seen in the coronal views, and these are strong indicators of the presence of cancer. The described computerized detection (CAD) system combines a dark lesion detector operating in 3D with a detector for spiculation and architectural distortion operating on 2D coronal slices. In this way a sensitive detection method is obtained. Techniques are also described for correlating regions of interest in ultrasound images from different scans such in different scans of the same breast, scans of a patient's right versus left breast, and scans taken at different times. Techniques are also described for correlating regions of interest in ultrasound images and mammography images. Interactive user interfaces are also described for displaying CAD results and for displaying corresponding locations on different images.

An intramedullary bone plate with sheath having an intramedullary stem, a bone plate head and a neck that connects the intramedullary stem to the bone plate head in a manner where the stem and head are offset from each other longitudinally and axially in the sagittal plane. The bone plate head includes a sheath recess wherein non-threaded bone screw holes and a threaded sheath screw hole are located. Bone screws are inserted through the sheath recess and oriented at set angles allowing for bone fragment fixation and fracture reduction. A sheath element is placed within the boundaries of the sheath recess and secured with the sheath screw. The intramedullary stem includes longitudinal flutes in its distal portion and a bi-arced geometry in its proximal portion providing for stabilization of the implanted device. The bone plate head configuration provides for more complete fracture capture and multiple fixation modalities.

In a device adapted to dissuade a dog from barking, there is provided a reservoir of spray material associated with a collar which encircles the dog's neck. The reservoir includes at least one wall member defining an interior volume for the receipt of spray material therein. The reservoir includes a first dimension (i.e., a centerline) which lies within the median sagittal plane of an erect dog which is facing forward, thereby orienting one portion of the interior of the reservoir vertically lowermost. An exit port is provided for the transport of spray material from the interior to the exterior of the reservoir. A semi-rigid, lengthwise substantially non-compressible, conduit having a first end thereof connected in fluid flow communication with the exit port, extends from the exit port and terminates at its opposite and open end at the vertically lowermost interior portion of the reservoir when the present appliance is mounted at a location on the collar beneath the lower jaw of the dog. The length of the conduit is chosen to exceed the straight-line distance between the exit port and the vertically lowermost portion of the reservoir by an amount sufficient to provide for wedging of the conduit against at least one interior wall of the reservoir opposite the exit port and preferably opposite to terminal open end of the conduit.

A spinous process implant, and a method therefor can be positioned with its longitudinal axis substantially perpendicular to the median sagittal plane of the patient, between an upper and an adjacent lower spinous process. The implant comprises, as spacers, upper support means, and lower support means, which, in each case, are applied with a recess saddle against the upper or lower spinous process. The support means can be spread apart in each case by means of clamping means, which are arranged between the support means in the longitudinal direction.

The invention discloses a gait planning method for walking of a biped robot along a slope, and belongs to the technical field of robots. The method contains two core theories, namely, non-orthogonal decomposition and synthesis of a three-dimensional linear inverted pendulum and gait planning based on a biped long linear inverted pendulum. The method comprises the steps of gait parameter configuration, non-orthogonal decomposition of a three-dimensional linear inverted pendulum, foot trajectory planning based on three times of spline interpolation, centroid trajectory planning of a sagittal plane and a coronal plane based on a biped long linear inverted pendulum, non-orthogonal synthesis of the centroid trajectories of the sagittal plane and the coronal plane, and solving of joint trajectories of a robot based on inverse kinematics. By adopting the method of the invention, stable walking of a biped robot along all directions of a slope can be effectively achieved. The method is universal, simple in algorithm and high in practicality.

A device for the determination of a plane containing the mechanical axis of the femur includes a mechanical member of articulated and or/sliding elements for the determination and memorization of two positions in space (F1 and F2) of the same point (F) of the knee, freely selected, when the knee is in position P1 and P2, relative to a referential system. These positions are obtained by rotation of the inferior limb from position P1 to position P2, about the centre of the femoral head. The orientation of an omega plan perpendicular to the frontal or sagittal plane containing the centre of the femoral head and the centre of the knee can be materialized by a rod contained in this plane, which rod is fixed perpendicularly and in the middle of the arm having at the ends two localization elements for points F1 and F2.

A freestanding exercise apparatus comprises a frame, a right door, a left door, and an exercise resistance source. The frame defines a sagittal plane dividing the frame into a left half and a right half with anterior and posterior ends. The right door is pivotally attached to the right half of the frame proximate the anterior end of the frame for pivoting about a right pivot axis. The left door is pivotally attached to the left half of the frame proximate the anterior end of the frame for pivoting about a left pivot axis. The exercise resistance source is connected to the frame. The frame, right pivot axis, and left pivot axis are configured and arranged such that the angle formed at the intersection of a first plane defined by the right pivot axis and the posterior end of the right half of the frame and a second plane defined by the left pivot axis and the posterior end of the left half of the frame is less than 90°.