140 results about "Hand grasp" patented technology

The invention discloses a robot under-actuated hand autonomous grasping method based on stereoscopic vision, and relates to a robot autonomous grasping method. The problems that a grasping point can not be calculated through an existing robot grasping method until a three-dimensional model of an object is obtained in advance and the existing robot grasping method can only recognize a simple object and can not obtain a corresponding grasping point for a complicated object are solved. The method includes the steps of obtaining RGB-D point cloud of the object and the environment through a Kinect sensor and conducting filtering on the point cloud for a to-be-grasped object and the environment of the object; extracting normal vector included angle characteristics, coplanar characteristics, distance characteristics, grasping stability characteristics, collision detecting characteristics and corresponding constraint equations for the RGB-D point cloud; establishing a grasping planning scheme on the basis of Gaussian process classification; driving an under-actuated hand for grasping according to the grasping scheme, then judging whether the under-actuated hand has already grasped the object or not according to current detection till the under-actuated hand grasps the object, and releasing the object after completing the grasping task. The method is suitable for the field of robot grasping.

A cardiac catheter for minimally invasive diagnostic and/or ablation procedures includes an elongated cylindrical, electrically non-conductive exterior tube with surface electrodes disposed on its distal portion and a handle on its proximal end. The distal portion can be curved into a curvature retained by a single action on a manual actuator. An electromechanical drive system may be incorporated into the handle. An electrical heating element may be incorporated within the distal electrode for ablation procedures. A removable, disposable blood contacting segment may be provided. The non-blood contacting actuator is thus reusable. The catheter includes two tension/compression members, which are wires with circular cross-sections that are integrally formed into ribbon-like configurations at their distal portions, for curvature formation. The handle includes a pivoted member movable in one direction by the thumb of the user's hand grasping the handle and in the opposite direction by the other fingers of the same hand.

A writing instrument having a writing leg having a writing tip extending from an end of the writing leg; a gate leg; a joint between the writing leg and the gate leg, wherein the joint is proximate to the writing tip and is to be grasped between a forefinger and thumb, and a third leg attached at one end to the second leg and at another end to the writing leg at a location distal to the writing tip, wherein said writing, second and third legs define an aperture sufficiently large to receive five fingers of a hand grasping the second leg.

The invention is directed toward a surgical forceps comprising a pair of scissor arms connected together by a pivot where the proximal ends forms a hand grasping surface and the distal ends are provided with jaw members. Each jaw member has a curved inner surface with a plurality of teeth and measurement markings at spaced intervals along an end surface of the first and second jaws. Each jaw member is semi-circular in shape and extends outward from each respective arm at an angle of about 110° so that when said scissor arms are closed together the jaw ends move toward each other. A rachet assembly is mounted on one scissor arm to engage a pawl mounted on the other arm to lock the jaw members in a fixed position.

A top for a small vehicle, such as a golf car, has a roof member and a set of struts that are pivotally attached to the roof member. The struts can be folded for shipping and storage. The top also has features that accommodate stacking of tops for shipping and storage. In addition, a handle is located inboard of an outer periphery of the roof member so that a hand grasping the handle is not exposed outside of the periphery. Furthermore, in one arrangement, the handle is mounted at a location that keeps an occupant's arm within the periphery if the handle is properly grasped. An improved drainage system also is provided to minimize splashing toward occupants.

Logic of a handheld controller can implement sensor fusion algorithms based on force data provided by a force sensing resistor (FSR) in combination with touch data or proximity data provided by a touch sensor or an array of proximity sensors, respectively. An example sensor fusion algorithm can be used to re-calibrate the FSR when an object contacts an associated control, as detected by the touch sensor. Another example sensor fusion algorithm can be used to ignore spurious inputs detected by the FSR when an object is in contact with an adjacent control. Another example sensor fusion algorithm can be used to detect a hand size of a hand grasping a handle of the controller, as detected by the array of proximity sensors, and to adjust the threshold force to register a FSR input event at the FSR according to the hand size.

A vehicular door handle assembly comprises a secondary latch with a default active condition for preventing inadvertent opening of a door during an impact, such as a collision. The door handle assembly comprises a primary actuator and a secondary actuator in operative communication with the secondary latch for selective deactivation thereof. When the user's hand grasps and pulls the primary actuator in a normal fashion to open the vehicle door, the user's hand simultaneously grasps the secondary actuator and moves the secondary actuator to deactivate the secondary latch and allow movement of the primary actuator and thereby open the vehicular door.

The invention discloses a virtual hand grasp simulating method based on motion capture. The method includes the following steps of building a correct virtual hand skeleton model according to physiological anatomical properties of a real human hand; building a skeleton kinematic model via the virtual hand skeleton model; importing the skeleton kinematic model into a test platform, carrying out impact test between the virtual hand and an object according to a classification method expressed by a 3D (three-dimensional) model and a level bounding box ; obtaining a torsion spring model and a drawing force spring model of a nonlinear spring model according to a linear spring model, and calculating five grasping forces of each finger; obtaining a resultant force of each finger by combining the five grasping forces respectively for each finger, and providing a rendered result of the resultant force; judging whether the rendered result of the resultant force satisfies an ergonomic test or not, ending the steps on yes; and adjusting a corresponding product on no until the product satisfies the ergonomic test. The virtual hand grasp simulating method based on motion capture is capable of shortening the production cycle and reducing the product cost.

According to one aspect of the present invention, an apparatus and related kit are disclosed for treating an airway condition of a patient. The invention includes a handle sized to be hand grasped by an operator and having an actuator mechanism to be selectively actuated by said operator. A cartridge includes an implant of biocompatible material sized to be embedded within a tissue of said airway. The cartridge also includes a needle having an axially extending bore and a distal tip for penetrating into the airway tissue. The implant disposed within said bore at the distal tip. The cartridge has a proximal end adapted to be coupled to the handle for the implant to be ejected from the distal tip upon actuation of the actuator. The kit of the invention includes a container including a handle and cartridge.

The invention belongs to the technical field of machine tools, and provides a feeding and discharging device capable of being automatically operated on a numerically-controlled machine tool. The device is provided with a door frame, the door frame is provided with a transverse module which perpendicularly moves on the door frame, a vertical module which moves left and right is arranged on the transverse module, the two sets of modules are formed in a crossing mode and driven by a servo motor, a feeding hand grasp device and a discharging hand grasp device are arranged on the transverse module through a connecting wrench, material grasping fingers are arranged on the feeding hand grasp device and the discharging hand grasp device, the material grasping fingers are controlled through a grasp control component to clamp and loosen a workpiece, a door type internal-arranged mechanical arm is adopted, the servo motor is adopted to drive a lead screw, a sliding table and the mechanical arm, automatic feeding and discharging of the workpiece can be achieved, two fingers are adopted by each hand grasp device for conducting parallel clamping, the fingers can be adjusted, clamping of workpieces of different specifications is achieved, the double grasps can work at the same time, and the production efficiency is improved by double.

The present invention provides an interface apparatus for manipulating a wheelchair which is capable of controlling the translation/rotation of the wheelchair by means of a pair of sliding mechanisms. In addition, there is at least one physiological sensor being disposed on each sliding mechanism for detecting physiological status of a user sitting on the wheelchair so as to monitor the bio-status of the user via a closed bio-potential circuit. The pair of sliding mechanisms are disposed respectively on their corresponding arm rest of the wheelchair so that the user can manipulating the wheelchair by two hands grasping the corresponding sliding mechanism while the physiological sensor can detect the physiological status of the user. With the aforesaid apparatus and wheelchair, it not only can provide a directly operating way with human-factor concerns but can also monitor the physiological status of the user so as to improve the safety in manipulation.

An auxiliary rotary tool drive apparatus mounted on, or an integral component of, hand-held rotary power tool has an extendable and retractable auxiliary drive shaft and a gear assembly that is selectively operatively engaged with the power transmitting shaft and gear assembly of the power tool and driven thereby using only the hand grasping the power tool for driving screws, fasteners, bits or other work performing members attached to the auxiliary drive shaft without having to move or remove the existing work performing member from the holding member of the power tool.

A paint roller tray (20), includes a pivoting bail handle (21) attached thereto. The bail handle (21) is horizontally disposed in a default position while the tray (20) is being used for painting. The handle pivots with respect to the tray (20) to move a handle portion upward for easy one hand grasping by a user. The bail handle includes foot extensions (72) and (73) that extend outboard of the tray (20) that a user can step on to pivot the bail handle (21) to a lift position for easier grasping. The tray (20) includes a paint brush rest surface (35) and one or more brush handle holders (36) and (37) to secure the brush handle and prevent the brush from falling as the tray is moved. The tray (20) further includes elements (44-49) for cantilevering the tray from the rung of a step ladder and is configured for nesting one tray inside another.

According to one aspect of the present invention, an apparatus and related kit are disclosed for treating an airway condition of a patient. A cartridge apparatus is disclosed for use in treating an airway condition of a patient and for use in combination with a handle sized to be hand-grasped by an operator and having an actuator mechanism to be selectively actuated by said operator. The cartridge includes a implant of biocompatible material sized to be embedded within a tissue of the airway. A needle has a distal tip for penetrating into the tissue. The needle has an axially extending bore. The implant is disposed within the bore at the distal tip. The cartridge has a proximal end adapted to be coupled to the handle for the implant to be ejected from the distal tip upon actuation of the actuator. The kit of the invention includes a container including a plurality of such cartridges.

A drawbar for power-operated industrial trucks with a drawbar handle which can be pivoted about a horizontal axis in a large angular range between an approximately upright position and a position inclined obliquely to vertical. The drawbar includes a drawbar head arranged at a free end of the drawbar handle, the head including a horn arranged in the extension of the drawbar handle, rod-like grips extending on both sides of the horn and approximately transversely thereto that are connected to carrier sections connected to the horn on both sides via arm sections attached to the end of a grip. The arm and carrier sections form a protective yoke with grip openings and at least one control element for a function of the industrial truck on one grip opening is arranged in the vicinity of the associated carrier section, such that it can be actuated from above by pressure from one finger, even when the hand grasps the rod-like grip facing it. The control element is constructed and arranged, such that with an approximately upright drawbar handle, it can even be actuated from the lower face of the drawbar head by finger or thumb pressure.

A horn actuation mechanism senses a deliberate movement of a driver's hand on a side of a steering plane distant from the driver, the steering wheel plane lying crossswise a rotational axis of the steering wheel and approximating a plane bisecting a peripheral gripping region of the steering wheel. The vehicle horn is energized in response to the sensing of such movement. A hand-operational portion of the horn actuation mechanism is advantageously disposed in a position in which a hand grasping a peripheral gripping portion of the wheel can simultaneously actuate the mechanism without removal of the hand from controlled contact with the wheel.

A walk-behind lawn mower in a form that a handle arm is integrally provided toward an obliquely upper back in a rear of a machine, and a loop handle is provided at a rear end of the relevant handle arm with slightly tilting forward, and a driver performs drive operation while walking following the machine that travels by itself at a back of the machine, includes a throttle lever, the throttle lever being able to be drawn together with the handle by being operated by either of right and left hands grasping the handle, in addition, engine rotation frequency being able to be controlled using the amount of drawing, wherein the throttle lever is rotatably provided on the handle arm in an obliquely lower front or obliquely upper back of the handle.

A marking enhancement device for facilitating and enhancing markings and helping to adjust writing styles. The device positions over a marking device in proximity to where a hand grasps. The device counteracts the pressure exerted by the hand while marking. The device includes a shaft portion for receiving the marking device. The shaft portion includes an aperture through which the marking device passes through. At least one lever joins along a longitudinal axis of the shaft, and extends outwardly from the shaft. Each lever includes a U-shape configured to be grasped by the hand while marking. A tension portion, such as a coil spring, positions between the shaft and the each lever. The tension portion provides a compressive force that counteracts the pressure applied on the marking device during marking. In this manner, the pressure transfers from the marking device and the marking surface to the tension portion.