2074 results about "Curve shape" patented technology

Disclosed is an ultrasonic surgical instrument that combines end-effector geometry to best affect the multiple functions of a shears-type configuration. The shape of the blade is characterized by a radiused cut offset by some distance to form a curved geometry. The cut creates a curved surface with multiple asymmetries causing multiple imbalances within the blade. Imbalance due to the curve of the instrument is corrected by a non-functional asymmetry proximal to the functional asymmetry. Imbalance due to the asymmetric cross-section of the blade is corrected by the appropriate selection of the volume and location of material removed from a functional asymmetry. The shape of the blade in one embodiment of the present invention is characterized by two radiused cuts offset by some distance to form a curved and potentially tapered geometry. These two cuts create curved surfaces including a concave surface and a convex surface. The length of the radiused cuts affects, in part, the acoustic balancing of the transverse motion induced by the curved shape.

A catheter has a stylet formed of a shape-retentive and resilient material having a preformed curved shape at its distal end resulting in the catheter sheath having the preformed curved shape. The catheter sheath has a plurality of electrodes at its distal end for contacting selected biological tissue for imparting ablation energy thereto. The catheter sheath also has an axially mounted tendon for causing deflection of the distal end. The stylet material permits straightening the catheter sheath during insertion into the patient and advancing the electrodes to the target tissue. Upon removal of the straightening forces, such as by entry into a chamber of the heart, the stylet material resumes its preformed curved distal shape thereby forcing the catheter distal end with the electrodes into the same preformed curved shape. The operator may place the curved distal end into contact with the target tissue and axially move the tendon as desired to gain greater control over the bend in the distal end of the catheter sheath to adjust the radius of curvature of the distal end to obtain greater contact of the electrodes with the heart tissue. Preferably, the stylet is formed of nitinol.

Apparatus and methods are provided for accessing a body lumen within a patient's body. Generally, the apparatus includes a tubular member including proximal and distal ends, a steering element extending between the proximal and distal ends, and an actuator for directing the distal end between a relaxed configuration and a complex curved configuration. In the relaxed configuration, the distal end may assume a straight or curved shape. In the complex curved configuration, the distal end may assume a curvilinear shape. In one embodiment, the complex curved configuration may include a first curved portion defining an arc within a plane, and a second portion that extends out of the plane. An embodiment with a left hand rule configuration may be introduced into the right atrium of a heart from a superior approach, and the complex curved configuration may facilitate accessing the coronary sinus.

A midsole structure for a shoe which improves a ride feeling and stability of the midfoot portion of the sole assembly during running. The sole assembly 1 of the shoe includes the upper plate 3 disposed on the upper side of the midfoot portion M and formed of a hard elastic member, the lower plate 4 disposed under the upper plate 3 to form the void S with the upper plate 3, formed of a hard elastic member, and having a downwardly convexedly curved shape, the midfoot outsole 6 attached on the bottom surface 4a of the lower plate 4, having the ground contact surface 6a, and provided discretely in the longitudinal direction from the outsole 5 of the heel portion H and the outsole 7 of the forefoot portion F of the sole assembly 1, and the connections 8, 9 provided on the front and rear ends of the midfoot portion M and interconnecting the upper plate 3 with the lower plate 4 in the vertical direction.

A curvilinear spinal access device for performing a procedure on a spine of a patient is disclosed. The device includes a working portal configured to be advanced toward a surgical site located at the spine of the patient. The working portal includes a distal end and a proximate end, a working portal housing having an open interior channel disposed between the distal end and the proximate end, an exterior channel disposed on an outside surface of the working portal housing and between the distal end and the proximate end. The distal end is configured to be disposed at the surgical site and the proximate end is disposed away from the surgical site. The housing has a curved shape defined between the proximate end and the distal end, wherein the proximate end is disposed with respect to the distal end. The working channel is configured to allow advancement of at least one surgical tool and / or at least one implant toward the surgical site.

Disclosed is an ultrasonic surgical instrument that combines end-effector geometry to best affect the multiple functions of a shears-type configuration. The shape of the blade is characterized by a radiused cut offset by some distance to form a curved geometry. The cut creates a curved surface with multiple asymmetries causing multiple imbalances within the blade. Imbalance due to the curve of the instrument is corrected by a non-functional asymmetry proximal to the functional asymmetry. Imbalance due to the asymmetric cross-section of the blade is corrected by the appropriate selection of the volume and location of material removed from a functional asymmetry. The shape of the blade in one embodiment of the present invention is characterized by two radiused cuts offset by some distance to form a curved and potentially tapered geometry. These two cuts create curved surfaces including a concave surface and a convex surface. The length of the radiused cuts affects, in part, the acoustic balancing of the transverse motion induced by the curved shape.

A tube having a distal end portion made of a curved, flexible, shape retentive material such as superelastic, nickel-titanium memory metal alloy which has been heat-treated to retain a desired curved shape. The tube translates within and is constrained by a rigid sleeve, which may alternately be an instrument channel of an endoscope. When the distal end portion of the tube is extended from the sleeve, it returns to its original curved shape. Markings about the proximal and, or distal end portions of the tube enable the operator to know to what extent the distal end portion of the tube has been extended from the sleeve even when the distal end portion of the tube is not visible. The tube may be used for supporting and activating a cutting, abrading, coagulating, shrinking, or vaporizing device that is brought near or into contact with a tissue surface.

Disclosed is a method of displaying a hierarchical file structure. The method determines a visual arrangement (100) of containers (102) which reflects a hierarchical relationship of the file structure. A concentric curved shape is then formed representing each container in the file structure and files within the containers, the curved shape having a geometry and location according to the determined visual arrangement. A viewpoint (600) is then established for the curved shape which is substantially radial thereto and allows viewing from a root container of the file structure towards one or more child containers of the file structure. The curved shape is then rendered, relative to the viewpoint, to a display (2114). Desirably, the files within a container (102) are represented as a tower (104) in the curved shape.

An automatic shuffling machine has a shuffling wheel and a card input mounted adjacent to the shuffling wheel for conveying and inserting cards into slots formed in the shuffling wheel. An insertion panel is mounted securely between the card input and the shuffling wheel, may be a curved shape corresponding to the shuffling wheel and has a tangent surface opposite to the shuffling wheel and an abutting portion disposed between an inlet passage of the card input and one corresponding card slot of the shuffling wheel. Thus, by controlling the rotation of the shuffling wheel, the automatic shuffling machine input the cards in a simple and efficient manner.

A curved-surface display panel fabrication method for fabricating a curved display panel having a desired curved shape using a flat display panel having a first substrate and a second substrate, includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an adhesive layer which is formed on at least a portion of edge portions of the display panel in a state that the pared flat display panel is bent to the desired curved shape.

A method for manufacturing a curved-surface display having a desired curved shape using a flat display panel having a first substrate and a second substrate includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; attaching a polarizer on at least one of the pared outer surfaces of the first substrate and the second substrate; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an adhesive layer which is formed on at least a portion of edge portions of the display panel in a state that the pared flat display panel to which the polarizer is attached is bent to the desired curved shape.

Suture passer systems for tissue suspension and tissue compression, and more particularly for tongue suspension, are described. The system can include at least a first elongate tubular body or shaft, a needle having a lateral bias carried by the elongate body, and a retrieval element operably connected to the elongate tubular body. The needle can have a substantially straight configuration when located within the elongate tubular body, and be configured to exit an opening at or near a distal end of the elongate tubular body and assume a laterally biased or curved shape to form a path through tissue. The needle is configured to carry a suture. The retrieval element can be configured to retrieve the suture carried by the needle after the needle has formed a curved or otherwise angled path through tissue. The system can also include one or more bone anchors to secure the suture loops. Methods of placing one or more suture loops into tissue, such as the base of the tongue, are also described.

A method for manufacturing a curved-surface display having a desired curved shape using a flat display panel having a first substrate and a second substrate includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; attaching a polarizer on at least one of the pared outer surfaces of the first substrate and the second substrate; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an optically clear adhesive layer which is formed on an outer surface of the polarizer so as to fill the pared portion.

A curved display panel manufacturing method for manufacturing a curved display panel having a curved shape using a flat display panel having a first substrate and a second substrate facing one another includes: paring partially outer portions of the first substrate and the second substrate so as to reduce thicknesses thereof to predetermined thicknesses; and forming fixing layers at edge areas which are not bent in a state of being bent to the desired curved shape among the edge areas of the first substrate and the second substrate.

A Multiple Aperture Ultrasound Imaging (MAUI) probe or transducer is uniquely capable of simultaneous imaging of a region of interest from separate apertures of ultrasound arrays. Some embodiments provide systems and methods for designing, building and using ultrasound probes having continuous arrays of ultrasound transducers which may have a substantially continuous concave curved shape in two or three dimensions (i.e. concave relative to an object to be imaged). Other embodiments herein provide systems and methods for designing, building and using ultrasound imaging probes having other unique configurations, such as adjustable probes and probes with variable configurations.

A curved surface display device includes: a grayscale image projection device which projects a grayscale image; and a color filter disposed in front of the grayscale image projection device and having a desired curved shape. By disposing a color filter having a curved shape in front of a grayscale image projection device, a curved surface display device displaying color images can be realized through a simple structure.

A curved display panel manufacturing method is provided. The curved display panel manufacturing method in which a display panel in a desired curved shape is manufactured using a prefabricated flat liquid crystal panel including a lower substrate and an upper substrate formed of glass and opposite each other, each of the lower substrate and an upper substrate being provided with a polarizing plate, and a liquid crystal layer formed between the lower substrate and the upper substrate, includes separating the polarizing plates from the lower substrate and the upper substrate, removing the outer surface of the liquid crystal panel to reduce the lower substrate and the upper substrate from which the polarizing plates are separated to a designated thickness, and bending the liquid crystal panel having the removed outer surface in a desired curved shape.

Backlight with which the uniformity of brightness within a display area of a concavely curved liquid crystal display device is improved while fulfilling the demand for slimmer liquid-crystal display devices, as well as curved liquid-crystal display device including such a backlight. The shape of a frame, an optical sheet, and a scattering plate constituting the backlight unit is the same concavely curved shape as that of the concavely curved panel; and the liquid-crystal panel, the optical sheet, and cold-cathode luminescent lamps are arranged such that the concavely curved panel, the surface of a frame constituting the backlight unit that faces the concavely curved panel, an optical sheet surface, and a surface including the tube center axes of a plurality of cold-cathode luminescent lamps are parallel to each other.

The invention discloses a transitional tracking planning method applied by an industrial robot, which can realize the transition between a joint space track and a cartesian space track, and the transition between two tracks of the cartesian space, the transitional track between different movement tracks are planned under the cartesian space, and has an intuitive shape; by adopting the algorithm that two parabolas are fused into one transitional curve, the smoothness of the track, speed and acceleration can be ensured, and the curve shape is controllable; the transitional track is formed by six independent curves, and the transition can be realized on the track with only posture change without position change; from the engineering application angle, the path velocity of transitional track boundary is restrained by utilizing the included angle between the tracks and the system allowable chord error, the boundary posture rotation speed is restrained by the similar mode, so that the large impact on a mechanical system caused by overhigh engagement speed can be prevented.

An automatic shuffling machine has a shuffling wheel and a card input mounted adjacent to the shuffling wheel for conveying and inserting cards into slots formed in the shuffling wheel. An insertion panel is mounted securely between the card input and the shuffling wheel, may be a curved shape corresponding to the shuffling wheel and has a tangent surface opposite to the shuffling wheel and an abutting portion disposed between an inlet passage of the card input and one corresponding card slot of the shuffling wheel. Thus, by controlling the rotation of the shuffling wheel, the automatic shuffling machine input the cards in a simple and efficient manner.

A touchpad having capability of inducing sensation of tactile key comprises a deformable cover provided over a sensor, the deformable cover having a key region. The deformable cover is presented as a flat shape or curved shape. The key region is provided with a projecting structure, recessed structure, or flat structure. Preferably, the key region is provided thereon with a pattern representative of a key. Alternatively, the touchpad further comprises a support member provided between the deformable cover and the sensor. Preferably, the support member is provided underneath the key region with a recess.

An improved apparatus and a method of measuring and interpreting reliably, simply and accurately the information on continuous liquid level, liquid temperature and other liquid properties within a vessel. The apparatus could be made of a powered heater element and temperature sensors can be screen-printed, vacuum deposited, etched, welded, soldered or plated on one or both sides of a single rigid or a flexible substrate. The geometry of the heater determines the curve shape, such as steepness or shallowness of a temperature profile along a heater. Various parallel and serial configurations of thermocouples or temperature sensors can be used to measure the temperature along a heater. Simultaneous measurements from all the temperature sensors, before and after heat is applied, are used to generate accurate temperature profiles for the entire heater. Different features of the temperature profiles will determine accurately the liquid level, liquid temperature and other liquid properties. Apparatus of the invention may also be used to detect ice formation.

A windshield wiper installed, stick closely on the front, rear windshield to wipe out water and comprising an elastic slice, a buckle, a rubber cover and a wiper blade; the elastic slice is a metal slice in curve shape and is in one piece design, two rubber covers in “A” shape are inserted from right and left sides of the metal slice to have the rubber covers on top of the metal slice to increase the elasticity and tenacity of the metal slice, such design is strong and also lowers the manufacturing cost, the fastening indentation on center of the metal slice can allow wiper blade slide in for convenient installation and replacement, the wiper blade can be replaced along without replacing the whole set to reduce the waste.

A marine vibrator has a hollow body formed of one shell or of two opposed shells defining an inner space therein with vibrator apparatus within the hollow body. At least one shell has a curved shape, and the shell can have a streamlined shape with relatively low hydrodynamic drag. Certain embodiments include one or more exterior control members to facilitate positioning of the vibrator in water. Other than their mating ends, when two shells are used the two shells may be different in shape and volume or they may be identical. In preferred two-shell embodiments, there is a flexible seal between and connecting the two opposed shells. In certain aspects the inner space is filled with gas. A vibrator apparatus in one aspect applies equal and opposite forces to the shells of a two-shell vibrator or to opposed sides of a single shell vibrator.

An implant for a bone connector includes an implant body, a hook portion, a fixing clamp and a movable clamp. The fixing clamp has a curved shape and supports a vertebral arch of a vertebra by grasping the vertebral arch. The implant body is provided on an upper portion of the fixing clamp. The hook portion over which a connecting member is hooked is provided on an upper portion of the implant body. Further, the movable clamp, which has a curved shape and grasps the vertebral arch, is provided on the upper portion of the implant body and is disposed to be opposed to the fixing clamp.

A bone fastener for use in orthopedic surgery for fixing an implant to bone has a threaded or unthreaded shaft configured to engage bone and a head having a thread on an outer surface to engage the implant. The thread on the head of the fastener has a profile in cross section that includes peaks with a curved shape.