10685 results about "Pull force" patented technology

An improved articulating device for use with a medical insertion instrument comprising in part a first tube having a plurality of ribs defining a plurality of bending segments, a second tube axially disposed within the first tube, and means for transmitting an axial deflecting pull load. Such device has improved controlled for positioning an end of the device at a selected position within the body. The articulating device has a generally constant moment of inertia and a polar moment of inertia that generally decreases from its proximal to distal end.

A fixturing assembly is provided that includes a needle and a fixturing device. The needle includes a first sharpened end and a second end including a can. The fixturing device includes an elongate filament having first and second ends, and an enlarged fixturing device on the first end of the filament. The second end of the filament is held by the can by frictional resistance, the second end of the filament being removable from the can when a tensile force is applied between the needle and the second end of the filament that exceeds the frictional resistance. For example, the can may include a coil, corrugations, or a roughened inner surface to removably hold the end of the fixturing device.

A method and apparatus for treating congestive heart disease and related cardiac complications such as valvular disorders includes a constraining device placed on the heart. The constraining device is a jacket of flexible material of knit construction defining a volume between an open upper end and a lower end. The jacket is dimensioned for the apex of the heart to be inserted into the volume through the open upper end and for the jacket to be slipped over the heart. The jacket is further dimensioned for the jacket to have a longitudinal dimension between the upper and lower ends sufficient for said jacket to constrain said lower portion of the heart. The jacket adapted to be adjusted on the heart to snugly conforming to an external geometry of the heart to constrain circumferential expansion of the heart beyond. A flexible drawstring is laced through the jacket material for the knit material to be bunched together as one end of the drawstring is pulled. A releasable stay member is provided for holding the draw string in a fixed position relative to said jacket upon release of a pulling tension on the draw string with the stay member releasable in response to a resumed pulling tension on the draw string.

A magnetic fastening device with discrete slidable adjustments, comprising first and second sheets, each having a plurality of magnetic section elements with first and second poles disposed in alternating groups defining predetermined abutting patterns. The magnetic section elements are abuttingly disposed in two groups. In one group, the elements' magnetic field is disposed in one direction perpendicular to the sheets. In the other group, the elements' field is disposed in the opposite direction. The groups repeat themselves in an alternating pattern. The movement of the first and second sheets is constrained to keep them in an abutting relationship with respect to each other over a predetermined path over the first and second sheets, thereby permitting the sheets to be slidably movable along a predetermined distance relative to each other in discrete steps that overcome the attraction and repulsion forces of the magnetic section elements upon the application of a pulling force of a predetermined magnitude.

A system for determining the tongue weight and total weight of a towed vehicle and other parameters includes a drawbar transducer in one embodiment, a receiver hitch transducer in another embodiment, and a trailer tongue transducer in a further embodiment. Strain gauges are strategically located on the transducer and information regarding the towed vehicle are sent to a display. In one embodiment, a portable display unit, smartphone or the like has a receiver for receiving transmitted data from the transducer reflective of the towed vehicle measured and calculated parameter so that a user can view the tongue weight in practically real time as well as other parameters relating to loading and towing. In this manner, the user can adjust the contents of the towed vehicle to achieve proper tongue weight without the necessity of going back and forth between the trailer and the transducer. A method is also disclosed for determining a safe towing condition based on the trailer tongue weight, trailer pulling force, acceleration during towing, calculated trailer weight, and other factors.

Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal section with a transverse aperture and a cross-section that may be shaped to more accurately conform to the anatomical shape of cortical bone and to provide additional strength and robustness in its lateral portions, preferably without requiring significant additional material. The fastening assembly may be received to slide, in a controlled way, in the transverse aperture of the implant. In some embodiments, the engaging member and the compression device are configured so that the compression device interacts with a portion of the implant and a portion of the engaging member to enable controlled movement between the first and second bone fragments. This configuration is useful for, among other things, compressing a fracture.

A graft fixation device, system and method are disclosed for reconstruction or replacement of a ligament or tendon preferably wherein a soft tissue graft or a bone-tendon-bone graft is received and implanted in a bone tunnel. The graft fixation system includes a fixation device comprising a threaded body which is rotatably connected to a graft interface member. One embodiment of the implant/graft interface member includes an enclosed loop for holding a soft tissue graft. Another embodiment of the interface member includes a bone cage comprising a cage bottom and removable cage top to hold a bone block at one end of a bone-tendon-bone (BTB) graft. An additional embodiment of the interface member includes a one-piece bone cage which may be crimped or stapled to a bone block. The fixation device holds a graft in centered axial alignment in a bone tunnel. The body portion of the fixation device may be turned without imparting substantial twist to a graft attached to the device, due to the rotatable coupling between the threaded body and the interface member. The fixation device may be installed using a driver tool that has a shaft and an outer sleeve, wherein the driver may be used to twist the fixation device and independently exert a pushing or pulling force thereto. The graft fixation method may be used to install a fixation device by pulling or pushing it into a prepared bone tunnel while minimizing the possibility of abrasion or other damage to a graft attached to the fixation device.

The invention relates to a crossed three-dimensional torpedo interception net capable of intercepting torpedoes, especially a torpedo interception net which can be projected or cast and can outspread automatically when entering into the water to form a decussate three-dimensional torpedo interception net. The appearance is column-shaped, a top cover is arranged at the top part and is fixed and sleeved by bayonet locks on the casing which is divided into four sections, the specific density of the top part is lighter than the seawater and the specific density of the bottom part is heavier than the seawater. A decussate bracket is arranged inside, a telescopic link is connected on the lateral side, and a suspended net is connected with the telescopic link via a hanger. When the torpedo interception net is projected or cast into sea via a surface ship, a submarine or a helicopter, the top cover is ejected via a spring, the casing is opened, a going barren dives the telescopic link to expand and the suspended net is dragged to outspread in horizontally. Under the upward pulling force of the telescopic link and the downward pulling force of the weight of the connector of the suspended net, the suspended net is outspreaded along vertical direction; a stabilization membrane connected with the inner side of the suspended net control the stability of the torpedo interception net along the vertical direction.

A system applies cardiopulmonary resuscitation (CPR) to a recipient. An automated controller is provided together with a compression device which periodically applies a force to a recipient's thorax under control of the automated controller. A band is adapted to be placed around a portion of the torso of the recipient corresponding to the recipient's thorax. A driver mechanism shortens and lengthens the circumference of the band. By shortening the circumference of the band, radial forces are created acting on at least lateral and anterior portions of the thorax. A translating mechanism may be. provided for translating the radial forces to increase the concentration of anterior radial forces acting on the anterior portion of the thorax. The driver mechanism may comprise a tension device for applying a circumference tensile force to the band. The driver mechanism may comprise an electric motor, a pneumatic linear actuator, or a contracting mechanism defining certain portions of the circumference of the band. The contracting mechanism may comprise plural fluid-receiving cells linked together along the circumference of the band. The width of each of the fluid-receiving cells becomes smaller as each cell is filled with a fluid. This causes the contraction of the band and a resulting shortening of the circumference of the band.

The present invention provides a lancet (X1) which includes a case (1) including an internal space (10), and a lancing unit (2) which includes a lancing needle (20) and which is movable within the internal space (10) in an advancing direction from a wait position to an advanced position. The case (1) includes a main body (11) accommodating the lancing unit (2), and a cap (12) which is molded integral with the main body (11) and detachable from the main body (11). The lancing unit (2) includes a cover portion (22) for covering a portion of the lancing needle (20) on the advancing side, for example. The cover portion (22) is detachable together with the cap (12) by exerting a rotational force for rotating the cap (12) and a pulling force for causing relative movement of the cap (12) in the advancing direction for exposing a front end of the lancing needle (20).

A heart pump and a catheter assembly therefor are provided that include a flexible catheter body having a proximal end and a distal end, the catheter body having a plurality of lumens therethrough. The catheter body can be sufficiently flexible to extend from a peripheral access to a patient's heart. The catheter assembly can also include an impeller assembly having an impeller and a housing. The impeller assembly can be coupled with the flexible catheter body such that a tensile force applied to opposite ends of the catheter assembly enhances the security of the connection between the catheter body and the impeller assembly.

An overall fitness trainer and can be a wall mounted unit that can utilize clip resistance bands as well as other techniques. These bands generally clip on the unit and onto different handles, bars and attachments to perform exercises. The unit can have a removable/adjustable pull up bar, dip bar and seat. It also includes a spring loaded, pull pin carriage that moves freely up and down a vertical spine. This allows for easy adjustment of the carriage and allows the user to attach the bands at multiple angles, widths and levels. This in turn increases the number of exercises the user can perform on the unit. The unit also typically has an o ring that attaches through the arm of the pull up attachment as well as a ½ O-ring at the bottom of the unit again increasing the number of exercises the user can perform. The unit can be attached to the wall with lag bolts into two or more studs. Some embodiments of the invention have an adjustable swivel foot that takes the stress off of the lag bolts and also adds to the overall load capacity of the unit. The apparatus typically has an optional telescoping central vertical spine that splits in two pieces to make the unit easier to ship. The central vertical spine allows attachments to be added and removed using spring loaded pins or plunger pins. Various embodiments of the invention can have an oscillating and telescopic bench, a dip bar, a seat, a knee stabilizer and a foot rest. All of these accessories can be attached and removed to the central spine adding to the versatility and scope of exercises that can be performed.

An assembly and method thereof comprising a screw head comprising an expandable bulbous end; a fixator component configured for receiving the bulbous end of the screw head; a load sharing mechanism positioned in between the bulbous end of the screw head and the bone fixator component, wherein the load sharing mechanism provides tensile resistance to the screw head; a pin mounted in the screw head; and a blocker adapted to engage the screw head. The screw head comprises a slot configured for receiving a longitudinal member. The load sharing mechanism may comprise any of a wave washer, a collapsible hollow washer, a coiled spring, and a flexible washer. Furthermore, the load sharing mechanism may comprise a washer having an outer surface with a plurality of cutout portions configured therein.

A sheet processing apparatus for folding a sheet bundle at a predetermined position includes paired rotating bodies for folding the sheet bundle having nip portions, a pressing device for pressing the predetermined position of the sheet bundle into the nip portions of the paired rotating bodies, and a device connected to the paired rotation bodies for providing rotation to the paired rotating bodies. A pulling force of the rotating bodies to pull the sheet bundle pressed into the nip portions of the rotating bodies has an amount which does not separate a sheet of the sheet bundle contacting the rotating bodies from the subsequent sheets in the sheet bundle when pulling the sheet bundle.

The invention relates to a drive running mechanism of a pipeline robot, which mainly solves the problems of the existing drive running mechanism of the pipeline robot that the pulling force is smaller, the pipe diameter adaptability is poorer, the ability of surmounting obstacles is insufficient and the like. The invention is characterized in that the drive running mechanism also comprises a wheel leg regulating motor arranged in a body, three running drive units arranged outside the body, three elastic wheel leg support units formed by combining a front support connecting rod, a rear support connecting rod and a regulating connecting rod, and a pipe diameter adaptation adjustment unit; and the body, the front support connecting rod, the rear support connecting rod and running drive units form a parallelogram wheel leg structure; after sensing the pressure from pipe walls, the pipe diameter adaptation adjustment unit regulates the front support connecting rod and the rear support connecting rod so as to adapt to the pipe diameter changes; and each running drive unit is driven by two motors so that larger pulling force can be ensured. The mechanism of the invention has larger pulling force, larger pipe diameter regulating range and better ability of surmounting the obstacles; and compared with the prior art, the mechanism has high transmission efficiency.

A foot strap and recreational sports board that allows the user to easily tension a foot strap over the top of his or her foot. The foot strap, attached to the board, includes a strap, a cable, and a cable adjuster. The strap has separate first and second sides connected by the cable cinched and uncinched together as the cable is tightened and loosened by the cable adjuster with which it is engaged. A single cable adjuster and cable can be employed to simultaneously adjust two straps, both attached to the sports board. A pull may be included to facilitate exercise of the cable adjuster.

A powered strength trainer includes: a motor of a load element being a DC or brushless motor; a controller, provided for users to adjust current and signal of the motor through a microcomputer control panel, and control the torque, vibration frequency and amplitude of the motor, such that the motor can produce a pulling force, a resistance and a vibration force at the same time, and a vibration waveform can be selected as needed, and a movement path sensor is provided for feeding back a position and determining a positive and negative rotation, and a curved load control is used for compensating a load current appropriately, and allowing users to obtain a smooth and real-world setting. A planar spiral spring drives a winch to rewind the steel wire to prevent the steel wire from falling out during a power disconnection or a power failure.

A periosteal distraction osteogenesis method and apparatus uses a sheet member for covering a surface of living bone that is, in turn, covered by soft tissue. The sheet member is under the soft tissue and over an area where bone growth outwardly and normally to the bone surface is desired. An attractor member adapted to magnetically attract the sheet member for exerting a pulling force on the sheet member in a direction outwardly and normally of the bone surface, is secured at an outwardly spaced location from the sheet member for causing growth of bone outwardly and normally to the bone surface.

An adjustable, knotless button/loop/needle construct for fixation of cranial cruciate ligament deficient stifle. The adjustable, knotless construct includes two fixation devices (for example, two buttons), at least one flexible, adjustable loop attached to at least one of the fixation devices (e.g., the buttons), and two needles (each needle being attached to one fixation device, e.g., the buttons). The adjustable, knotless construct has an adjustable loop length and allows adjustment in one direction while preventing or locking the construct from loosening in the opposite direction, due to applied tensile forces. The construct and technique of the present invention provides an improved knotless system for cruciate ligament repair.

A delivery catheter includes a constraining sheath coupled to a distal end of the catheter, and a medical device, such as an embolic protection device (EPD) or a stent, constrained by the sheath. A wire may extend proximally from the constraining sheath and be coupled thereto. A proximal pulling force on the wire causes the wire to tear the constraining sheath, thereby releasing the medical device from a constrained configuration to an expanded configuration.