72results about How to "Efficiently actuated" patented technology

A surgical clip applier and methods for applying surgical clips to a vessel, duct, shunt, etc., during a surgical procedure are provided. In one exemplary embodiment, a surgical clip applier is provided having a housing with a trigger movably coupled thereto and an elongate shaft extending therefrom with opposed jaws formed on a distal end thereof. The trigger is adapted to advance a clip to position the clip between the jaws, and to move the jaws from an open position to a closed position to crimp the clip positioned therebetween.

The present invention provides methods and devices for placing a spinal fixation rod into a rod receiving opening in a spinal anchor and installing a fastener to secure the rod to the spinal anchor. In one embodiment, the system can include a cap having a bore extending therethrough, an elongate drive rod that is adapted to extend through the bore, and a fastener that is disposed on a distal portion of the drive rod. The cap can include a driving element that is adapted to cooperate with a complementary driving element disposed on the rod to form a driving mechanism. Actuation of the driver mechanism can be effective to advance the drive rod through the cap to thereby reduce a spinal rod into a rod receiving opening of the spinal anchor and install the fastener to secure the rod to the spinal anchor.

An unlimited stroke drive method for pumping fluid from an oil well in which the well has a tubing string extending from the earth's surface down to a fluid producing formation. The method includes the steps of positioning a pump barrel within the tubing, an upper end of the pump barrel having communication through a standing valve with the interior of the tubing string, vertically reciprocating a length of flexible cable within the tubing string to vertically reciprocate a plunger within the pump barrel to allow a lower portion to quickly fill with fluid from the producing formation and then to a downward position in which fluid within the pump barrel lower portion is transferred through a traveling valve to an area within the pump barrel above the plunger to move formation fluid from within the pump barrel to the interior of the tubing and thence to the earth's surface.

Disclosed is a minimally invasive surgical instrument that may be used in hand-assisted laparoscopic surgeries. The device is a multifunctional surgical instrument that may be mounted directly on a surgeon's fingertip and inserted through an incision to allow the surgeon to manipulate tissue during a surgical procedure. Versions include marking elements that are actuated to expose marking flowable fluid (e.g., ink pad, marker tip, roller ball). Versions include those that actuate to open an ampoule containing a flowable material (e.g., adhesive) with continued actuation causing dispensing. In addition, two compounds that are mixed at the time of application are provided with a bifurcated ampoule version and a dual cylinder/plunger version.

A head-mountable apparatus mountable on a head of an observer comprises a first pressing member which presses a first portion of the head; a second pressing member which presses a second portion of the head; and adjustment unit adapted to move the first pressing member and the second pressing member to positions where the first pressing member and the second pressing member respectively press the first portion and the second portion.

Disclosed is a minimally invasive surgical instrument that may be used in hand-assisted laparoscopic surgeries. The device is a multifunctional surgical instrument that may be mounted directly on a surgeon's fingertip and inserted through an incision to allow the surgeon to manipulate tissue during a surgical procedure. Versions show a self-righting suture needle holder and a version with a dual pivoting jaw (e.g., grasper, cutter) that has an elongate neck to enhance the reach of the instrument. In addition, an elongate neck of an actuated fingertip instrument enhances the range reachable through a single incision.

A reciprocated pump positioned at the lower end of a string of tubing in a bore hole that provides a passageway for moving formation fluid to the earth's surface, including a pump barrel supported in communication with the tubing and a standing valve at the lower end thereof providing a first passageway through which formation fluid flows into the pump barrel, the pump barrel having an intermediate vent port providing a second entry passageway, and a tubular plunger reciprocated within the barrel and having an upper and a lower portion with a plurality of non-metallic seal rings separated by metallic spacers received on the plunger upper portion and configured to support a column of formation fluid within the tubing to substantially isolate the portion of the barrel below the non-metallic seal rings from the tubing pressure to thereby allow formation fluid to move into the pump barrel.

A device is provided for sealing an opening made in a structure, including a fixed panel in which an opening is defined, and at least one sliding panel, including: two shuttles respectively guided in two guiding rails mounted and/or formed on the surface of the fixed panel facing the inside of the vehicle and a frame supporting at least two guiding pins respectively engaging with each one of the shuttles. The shuttles include guides for guiding the pins, enabling a transverse movement of the frame relative to the shuttles. An actuator acts directly or indirectly on the shuttles in order to move the latter in the rails, causing the sliding panel to move in a direction perpendicular to the plane of the fixed panel. The device also synchronizes the actuator so as to synchronize the movement of the shuttles.

A single and/or multiple spray paint railroad track and/or railroad tie marking method and lightweight apparatus is provided which has rollers to guide and easily move the device on the railroad tracks over the railroad track and/or ties to be spray paint marked for replacement. In its preferred embodiment, the multiple spray paint cans are positioned and connected to simultaneously mark the top side of both outer ends of a railroad tie, and optionally an inner portion of the railroad tie, with a single activation of a trigger mechanism in order to assure that both ends, an optionally an inner portion, of a selected railroad tie is plainly marked for the railroad tie replacement gang. In its alternative embodiment, the spray paint cans are mounted to spray paint mark the inside surface of the railroad track above the railroad tie chosen for replacement. The removable push handle and fixed carrying handle allow for compact and easy transportation to and from the job site. The optional spray paint can trays provide for a safe and easy means for carrying along extra spray paint cans and for retaining spent spray paint cans for proper disposal at a later time. The use of the optional spray paint shields provides for more accurate paint application by reducing the effects of wind and wind gusts and for shielding parts of the apparatus from the accumulation of unwanted paint. The use of a shaped spray paint nozzle provides a method and apparatus for shaping the spray paint exiting from the spray paint cans. Depending upon the shape of the spray paint nozzle, the resulting spray paint mark could be something other than a simple spray paint circle. For example, the resulting spray paint could be a long line, a circle with a hole in it, an “X”, or any other shape suitable to a nozzle design. The spray paint nozzle design can also include a spray paint nozzle clip which allows for the positioning of the spray paint nozzle in any orientation desired by the user. The spray paint nozzle designs have other applications than just for the marking of railroad tracks and/or railroad ties and those designs and uses would be apparent to anyone skilled in the art.

An electron beam apparatus comprises a TDI sensor (64) and a feed-through device (50). The feed-through device has a socket contact (54) for interconnecting a pin (52) attached to a flanged (51) for separating different environments. The other pin (53) making a pair with the pin (52) and the socket contact (54) together construct a connecting block, and the socket contact (54) has an elastic member (61). The pin (53) is connected with the TDI sensor (64), in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system. Further, the number of integration stage may be determined such that the data rate of the TDI sensor would not be reduced but the number of pins would not be increased as much as possible. Preferably, the number of line count may be almost equal to the number of integration stages.

A cigarette tobacco filler device includes a casing having an outlet for holding a cigarette tube in position, a plunger movably supported in said casing for delivering tobacco into the cigarette tube, and a plunger actuation unit which includes a power shaft rotatably supported in the casing to couple with the plunger and an operation handle which is pivotally extended above the top side of the casing and is arranged in such a manner that when the operation handle is pivotally moved down to the top side of the casing, the power shaft is driven to rotate so as to actuate the plunger for inserting the tobacco to the cigarette tube at the outlet.