98 results about "Entry angle" patented technology

A method and apparatus for steering of a flexible needle into tissue using a steering robotic platform for manipulation of the needle shaft, and by use of a semi-active arm for locating and orienting of the steering robot on the patient's body. As opposed to other steering methods, the robot does not hold the base of the needle, which is its proximal region, but rather grips the shaft of the needle by means of a manipulatable needle gripping device, near its distal end. The needle gripper attached to the robotic platform may be equipped with a traction assembly to provide motion to the needle in its longitudinal direction, such that it co-ordinates the entry of the needle with the desired entry angle. The gripping of the needle at its distal end, close to its insertion point, provides the needle manipulator with a low profile, with concomitant advantages.

An ultrasound needle guide system for use with an ultrasound transducer and method of use of the guide system to provide predictable trajectories for puncture devices at various depths. The needle guide system basically consists of a bracket and a needle guide. The bracket is arranged to be releasably secured to the ultrasound transducer. The transducer / bracket assembly is then placed into an isolating sterile cover. The needle guide is arranged to be readily attached, e.g., snap-fit, to the transducer / bracket with the cover interposed therebetween. The needle guide can be provided in various versions for differing puncture device sizes and various entry angles in relation to the transducer. In one embodiment the needle guide is arranged to establish plural predetermined entry angles.

A system and method for improving a player's efficiency in shooting by providing a player with various shooting challenge routines at which a player makes either a total number of shots or a total number shots in a row. Statistics regarding the player's performance are stored, printed and / or evaluated and the player can use the information to improve his or her efficiency at one or more of the plurality of different locations where the player shoots the basketball. In another embodiment, a measuring or detection system is used in combination with or separate from a ball launcher. The system is adapted to measure at least one of a distance of a player from the a launcher, height of a shot made by the player after catching a basketball, release angle, release time, or arc of a shot; entry angle of the basketball into a goal; hold or release time; or shot arc.

A system and method for improving a player's efficiency in shooting by providing a player with various shooting challenge routines at which a player makes either a total number of shots or a total number shots in a row. Statistics regarding the player's performance are stored, printed and / or evaluated and the player can use the information to improve his or her efficiency at one or more of the plurality of different locations where the player shoots the basketball. In another embodiment, a measuring or detection system is used in combination with or separate from a ball launcher. The system is adapted to measure at least one of a distance of a player from the a launcher, height of a shot made by the player after catching a basketball, release angle, release time, or arc of a shot; entry angle of the basketball into a goal; hold or release time; or shot arc.

A disclosed device provides a trajectory detection and feedback system. The system is capable of detecting one or more moving objects in free flight, analyzing a trajectory of each object and providing immediate feedback information to a human that has launched the object into flight, and / or one or more observers in the area. In a particular embodiment, a non-intrusive machine vision system that remotely detects trajectories of moving objects may be used to evaluate trajectory parameters for a basketball shot at a basketball hoop by a player. The feedback information, such as a trajectory entry angle into the basketball hoop and / or an entry velocity into the hoop for the shot, may be output to the player in an auditory format using a sound projection device. The system may be operable to be set-up and to operate in a substantially autonomous manner.

An ultrasound needle guide system for use with an ultrasound transducer and method of use of the guide system to provide predictable trajectories for puncture devices at various depths. The needle guide system basically consists of a bracket and a needle guide. The bracket is arranged to be releasably secured to the ultrasound transducer. The transducer / bracket assembly is then placed into an isolating sterile cover. The needle guide is arranged to be readily attached, e.g., snap-fit, to the transducer / bracket with the cover interposed therebetween. The needle guide can be provided in various versions for differing puncture device sizes and various entry angles in relation to the transducer. In one embodiment the needle guide is arranged to establish plural predetermined entry angles.

A golf ball (20) having a plurality of primary dimples (50) with annular tubular portion (60) is disclosed herein. In a preferred embodiment, there are 332 primary dimples which cover a surface area ranging from 81% to 87% of the golf ball (20). Also in a preferred embodiment, there are twenty different types of primary dimples (50), which vary in diameter, chord depth and / or entry angle.

A microscope includes at least one illuminating lens configured to guide at least one illuminating beam in the form of a light sheet for illuminating at least one specimen to be examined. The microscope also includes at least one detection lens configured to capture at least one detection beam issuing from the at least one specimen to be examined. The at least one illuminating lens has an optical axis at an angle α, which is not equal to 90°, to an optical axis of the at least one detection lens. The at least one illuminating beam enters the at least one illuminating lens at an entry angle β such that the light sheet lies within a focal plane of the at least one detection lens.

A novel optical assembly apparatus for coupling optical energy and a related method for creating the novel optical assembly apparatus are disclosed. In one embodiment, the novel optical assembly apparatus includes a high-index contrast waveguide constructed on a semiconductor die or another base substrate with an aligned optical coupling section, a grating coupler etched onto a surface, a micro mirror with an acute angle relative to the surface, and a waveguide taper that narrows an optical beam width. A light ray entered into the optical coupling section is redirected by the micro mirror to form a perpendicular ray entry angle with the grating coupler. The grating coupler then efficiently couples the light ray with the waveguide taper, which in turn narrows the optical beam width. The light ray may originate from a semiconductor die or from an optical fiber, which is purposefully aligned with the high-index contrast waveguide.

A system and method are provided for using a computer system to assist in planning a trajectory (960A, 960B) for a surgical insertion into a skull. The method comprises providing the computer system with a three-dimensional representation of the skull and of critical objects located within the skull, wherein the critical objects comprise anatomical features to be avoided during the surgical insertion. The method further comprises providing the computer system with a target location (770, 970) for the insertion within the skull. The method further comprises generating by the computer system a first set comprising a plurality of entry points, each entry point (760) representing a surface location on the skull, and each entry point (760) being associated (2D) with a trajectory (960A, 960B) from the entry point (760) to the target location (770, 970). The method further comprises discarding by the computer system entry points from the first set to form a second, reduced set comprising a plurality of entry points, wherein an entry point (760) is discarded from the first set of entry points if the entry point (760) has an entry angle which fails a condition for being substantially perpendicular to the skull surface. For each entry point (760) in the second set, the computer system assess the entry point (760) against a set of one or more criteria, wherein the set of one or more criteria includes a risk factor based on the separation between the critical objects and the trajectory (960A, 960B) which is associated with said entry point (760)). This risk factor may be calculated by integrating f(x) along the trajectory (960A, 960B) associated (2D) with the entry point (760), where x represents distance along the trajectory (960A, 960B) to a sample point, and f(x) is a function based on distance from the sample point at distance x to a critical object which is nearest to said sample point.

Disclosed is a fluid flow diverting device comprising a hollow main body and a plurality of blades protruding into the interior of the main body. The blades are positioned along the interior surface of the main body in multiple layers. The blades of each successive layer have a larger surface area and a larger entry angle of approach than the blades of a previous layer. The fluid diverting device can be inserted into any enclosed medium where fluids typically flow. The arrangement of blades diverts the flow of fluid in a way that creates a low pressure flow in the center of the enclosed medium. This low pressure flow is surrounded by high pressure flow, resulting in an increase in the swirling of matter and a pull of matter toward the center of the medium.

A liquid crystal display includes a surface light source device of a side light type for lighting. On lighting a fluorescent lamp, primary light is introduced into a guide plate and propagates within the guide plate. Much of the illumination light enters into any one of a number of ridges on an emission-function face, being followed by inner impingement upon a flank face, which is more remote from an incidence end face, at an entry angle greater than a critical angle theta 1. Much of the light which has undergone such inner impingement is supplied to a liquid crystal display panel almost frontward via a top face. The ridges are inclined at a predetermined inclination angle alpha with respect to the incidence end face of the guide plate. Inclination angle alpha preferably falls within a range from 5 degrees to 45 degrees, in particular, from 15 degrees to 30 degrees. Employment of size-reduced ridges is realizable, leading to less conspicuous ridges without reducing emission function. Moire fringes are preventable, too. Each ridge may be provided with all or some of a tapered shape, an inclined flank face and foot portions with a stepwise difference.

A system and method are provided for using a computer system to assist in planning a trajectory (960A, 960B) for a surgical insertion into a skull. The method comprises providing the computer system with a three-dimensional representation of the skull and of critical objects located within the skull, wherein the critical objects comprise anatomical features to be avoided during the surgical insertion. The method further comprises providing the computer system with a target location (770, 970) for the insertion within the skull. The method further comprises generating by the computer system a first set comprising a plurality of entry points, each entry point (760) representing a surface location on the skull, and each entry point (760) being associated (2D) with a trajectory (960A, 960B) from the entry point (760) to the target location (770, 970). The method further comprises discarding by the computer system entry points from the first set to form a second, reduced set comprising a plurality of entry points, wherein an entry point (760) is discarded from the first set of entry points if the entry point (760) has an entry angle which fails a condition for being substantially perpendicular to the skull surface. For each entry point (760) in the second set, the computer system assess the entry point (760) against a set of one or more criteria, wherein the set of one or more criteria includes a risk factor based on the separation between the critical objects and the trajectory (960A, 960B) which is associated with said entry point (760)). This risk factor may be calculated by integrating f(x) along the trajectory (960A, 960B) associated (2D) with the entry point (760), where x represents distance along the trajectory (960A, 960B) to a sample point, and f(x) is a function based on distance from the sample point at distance x to a critical object which is nearest to said sample point.

A travelling rolling digger (1) for sequential hole drilling or for producing sequential cultivated spots in soil. The travelling rolling digger (1) includes at least one drilling shaft which is rotatable by a drive mechanism about a longitudinal shaft axis and has a rotating soil penetrating edge. The drilling shaft is mounted to roll about a horizontal shaft in a soil penetrating plane while the horizontal shaft moves in a direction of travel of the traveling rolling digger. The rotating drilling shaft enters the soil at an entry angle and digs into the soil while the horizontal shaft moves in the direction of travel and the drilling shaft continuously changes its angle relative to the soil from the entry angle to a vertical position. The traveling rolling digger further comprising at least one cleaning blade (6).

The invention relates to an identification method and a prompting system for depth of a vein blood vessel. The identification method and the prompting system solve the problem that judgment of the depth of the blood vessel cannot be carried out in the prior art. The identification method and the prompting system have the advantages that a mapping relationship between the image mode and the depth of the blood vessel is established by a machine learning regression module in machine visual learning according to the image of the vein blood vessel, so the depth of the blood vessel is automatically identified on the basis of images; the information of the depth of the blood vessel is prompted by voice and projection, and a medical staff can position the blood vessel, and can also determine the depth of the blood vessel, so the needle entry angle is accurately controlled, the success rate of vein puncturing is improved, and the pain of a patient due to the vein puncturing is reduced.

An auto sheet feed device for an office automation system uses: a paper loading plate which moves upwardly and downwardly according to the quantity of paper loaded thereon; a loading pick up device for picking up paper loaded on an upper part of the paper loading plate according to a control signal; a pressurizer for maintaining the paper loading plate and the pick up device in close adherence to each other; a resistance plate for separating the paper picked up by the pick up device from the paper loading plate; and a resistance plate varying device for maintaining an entry angle between the resistance plate and the paper as paper is picked up by the pick up device. Preferably, the resistance plate varying device includes a rack gear formed on the paper loading plate, an idle gear contacting the rack gear and driver thereby, and a fan shaped gear rotated by movement of the idle gear to adjust the angle between the resistance plate and paper in the paper loading plate.

Method and various devices and systems directed towards teaching, training and developing a shooter to increase the accuracy of shooting a basketball are provided. The method comprises shooting a basketball with centerline straightness, 43-45 degree basketball hoop entry angle and 11 inch shot-depth. Embodiments of the physical devices of the invention, which may be used singly or in various combination, comprise a centerline-straightness target acquisition portion, a shot-depth target acquisition potion and an arc-angle target acquisition portion that teach, develop and reinforce consistent, accurate basketball shooting. A bracket assembly is disclosed for detachably attaching the device embodiments to a basketball backboard above the basketball hoop rim.

The invention relates to the technical field of fluid mechanical engineering, in particular to a structural body rotatable entry testing device. The device is characterized in that a support piece covers a water storage box and used for bearing a position adjusting assembly and a rotation emission assembly. The position adjusting assembly comprises a first-grade adjustment track used for achievingfront and back movement, a second-grade adjustment track used for achieving left and right movement and a third-grade adjustment piece used for achieving up-down movement. A dial is installed on thethird-grade adjustment piece. The rotation emission assembly comprises a rotation part and a clamping part. The clamping part is fixedly installed on the rotation part and used for clamping the structural body and providing entry rotation speed for the structure body so as to allow the structural body to enter the water in a rotatable manner. The rotation part is used for rotating the clamping part in a vertical face so as to adjust the entry angle of the structural body. The dial is used for measuring the rotation angle of the clamping part. According to the invention, precise positioning isthe space position can be achieved; by changing the distance between the structural body and the water face, change of entry speed can be achieved; and through the rotation emission assembly, entry angles of the structural body can be changed.

The invention provides an automatic retraction method for a parachute landing unmanned aerial vehicle. The landing site, the entry angle and the retraction altitude are sent to the unmanned aerial vehicle, and the unmanned aerial vehicle automatically plans a retraction airline and acts along the retraction airline; when the unmanned aerial vehicle approaches a retraction point, movement after engine shutdown is divided into a gliding section, a pull stopping section and a drifting section, a flight control program automatically queries the weight, speed and altitude of the unmanned aerial vehicle, the wind field and other conditions at the moment, and the shutdown position and the parachute opening position are worked out; a shutdown instruction and a parachute opening instruction are automatically executed. By means of the method, a parachute landing model can adapt to all altitudes from a low altitude to 5000 km or above like that of the Qinghai-Tibet Plateau, requirements for flight control precision and time accuracy are lowered, retraction precision is improved, wind measurement equipment and staff are not needed, staff are freed from the burden of wind measurement, calculation and control, and control over the unmanned aerial vehicle becomes easy and convenient.

A sprinkler includes a turbine, a gear drive, a nozzle turret, and a nozzle that is installed in the turret. The gear drive rotatably couples the turbine and the nozzle. The nozzle has an exit angle which is different from its entry angle to change the trajectory of the water as it passes through the nozzle. The nozzle can be installed in an orientation to increase the trajectory of the water leaving the sprinkler, or installed in an orientation to decrease the trajectory of the water leaving the sprinkler.

The present invention provides an interconnect structure, a method of manufacture therefore, and a method for manufacturing an integrated circuit including the same. The method for forming the interconnect structure, among other steps, includes subjecting a first portion (510) of a substrate (220) to a first etch process, the first etch process designed to etch at a first entry angle (θ1), and subjecting a second portion (610) of the substrate (220) to a second different etch process, the second different etch process designed to etch at a second lesser entry angle (θ2).

A microscope includes at least one illuminating lens configured to guide at least one illuminating beam in the form of a light sheet for illuminating at least one specimen to be examined. The microscope also includes at least one detection lens configured to capture at least one detection beam issuing from the at least one specimen to be examined. The at least one illuminating lens has an optical axis at an angle α, which is not equal to 90°, to an optical axis of the at least one detection lens. The at least one illuminating beam enters the at least one illuminating lens at an entry angle β such that the light sheet lies within a focal plane of the at least one detection lens.

A sealing or bearing structure for sealing or separating moving surfaces is provided. The sealing or bearing structure includes a main body that defines a body axis going through the main body. A contact surface is configured to slidingly contact another surface, such as a rod, and defines a contact axis that is parallel to the body axis. At least one geometric surface feature, such as a shaped edge, is located between the body axis and the contact axis. The geometric surface feature has an entry angle that is less than 5 degrees relative to the contact axis.

The invention belongs to the technical field of aquiculture technical equipment, in particular to a combined flow-jetting and oxygenation water-plowing machine, which comprises flow-jetting aerators; more than two flow-jetting aerators are circumferentially and uniformly distributed on a rack by taking a center shaft as a rotary center; the central shaft and a bracket are arranged on a float body; a water-plowing board is arranged on the bracket or the float body; the flow-jetting aerators are electrically connected to a computer frequency-converting control system; the water-plowing board is connected to the rack or the float body through an angle spring; and an entry angle for mounting a flow-jetting pump of the flow-jetting aerator and a centre line included angle are all adjustable. The water-plowing machine has oxygenation and water-plowing functions; the flow-jetting aerators can be used for increasing emergency oxygen by rotating around the center shaft at a high speed in the water, and also can be used for performing water-plowing rotation with a low speed of 7-10 r / min under the control of the computer frequency-converting control system; the water-plowing machine is low in manufacturing cost and good in oxygenation and water-plowing performances and is applied to the field of aquiculture.

Disclosed are a stage rotation device and an optical orientation apparatus including same. The optical orientation apparatus according to one aspect of the present invention includes an optical irradiation unit, which has an electrodeless UV lamp which emits light by receiving microwaves and aligns liquid crystal elements in a certain direction by polarizing the light from the electrodeless UV lamp and irradiating an orientation film with the light, and the stage rotation device which is capable of changing the entry angle of the orientation film with respect to the irradiation direction of the optical irradiation unit.

The invention relates to an air intake and discharge grille for a special vehicle, in particular to an intake and discharge grille with good air flow resistance for a special vehicle. The air intake and discharge grille comprises movable vanes and fixed vanes, the vanes of the grille are of the type of a single-arc bent plate, and the radians and the thicknesses of the vanes are scientifically calculated according to the entry angle and the exit angle of air flow, thereby ensuring the protective properties of the grille of a single-arc bent plate, greatly reducing the flow resistance of air flow by improving the vanes of the grille, and improving the capabilities of a cooling system of a vehicle. Besides, the grille of a single-arc bent plate has simple structure, thereby achieving better manufacturability and lower processing cost.

A circulation protection device is provided for a conveyor-driven fabric dyeing machine that includes a machine body having a front end in which a fabric circulation detection idler and a fabric movement sensor are mounted and a rear end in which a rear fabric guide and a fabric management device are mounted. Control is conducted with a computer program so that when the fabric circulation detection idler detects the fabric is not in movement, the conveyor is shut down; and when the fabric movement sensor detects the fabric is moving excessively fast or slow or gets jamming and stopped, the conveyor is controlled to automatically adjust the speed thereof or stops operation. When the fabric falls from a dyeing tube down to a conveyor, the rear fabric guide adjusts an entry angle of the fabric and the fabric management device allows the fabric to be orderly deposited on the conveyor.

The invention relates to the technical field of wearable devices, and discloses a method for detecting whether or not the swimming stroke is standard and a wearable device. The method includes the steps that after the wearable device starts the swimming stroke detection function, hand speed information, hand entry angle information and hand direction information generated at the moment when the hands of a swimmer enter water and come out of the water are compared with standard swimming stroke information, and then whether or not the swimming stroke of the swimmer is standard can be obtained. Thus, by means of the embodiment, whether or not the swimming stroke is standard can be objectively and accurately detected, and then the swimming stroke can be standardized.

An introducer assembly for use with a surgical stapler is provided. The introducer assembly includes an elongated main body portion, one or more mounting mechanisms associated with the main body portion, and a plurality of petals or fingers positioned at a distal end of the elongated main body portion. The one or more mounting mechanisms are adapted to detachably mount with respect to the surgical stapler. The plurality of petals or fingers define a distal junction and a proximally-directed mounting member that is adapted to detachably engage a distal portion of the surgical stapler. Exemplary introducer assemblies may include an adjustable length of the plurality of petals or fingers to conform to a distal end of the surgical stapler, an adjustable height of the proximally-directed mounting member to adjust an entry angle, means for detachably engaging a trocar, and / or means for insufflating air into a passage.