6424results about How to "Adjustable length" patented technology

A device for use as a portal in percutaneous minimally invasive surgery performed within a patient's body cavity includes a first elongated hollow tube having a length adjusted with a self-contained mechanism. The first elongated tube includes an inner hollow tube and an outer hollow tube and the inner tube is adapted to slide within the outer tube thereby providing the self-contained length adjusting mechanism. This length-adjustment feature is advantageous for percutaneous access surgery in any body cavity. Two or more elongated tubes with adjustable lengths can be placed into two or more adjacent body cavities, respectively. Paths are opened within the tissue areas between the two or more body cavities, and are used to transfer devices and tools between the adjacent body cavities. This system of two or more elongated tubes with adjustable lengths is particularly advantageous in percutaneous minimally invasive spinal surgeries, and provides the benefits of minimizing long incisions, recovery time and post-operative complications.

Systems and devices for dynamically stabilizing the spine are provided. The systems include a superior component for attachment to a superior vertebra of a spinal motion segment and an inferior component for attachment to an inferior vertebral of a spinal motion segment. The interconnection between the two components enables the spinal motion segment to move in a manner that mimics the natural motion of the spinal motion segment. Methods are also provided for stabilizing the spine and for implanting the subject systems.

A flip-type mobile communication terminal includes a first main body, a second main body coupled to the first main body; a flexible display; a connection member connected to the flexible display; and a length-adjusting assembly to adjust length of the flexible display.

Novel catheter constructions comprising thin covering or wrapping materials such as polymer films. A catheter provided with a guidewire catheter lumen having a thin covering that is easily punctured by a guidewire at virtually any desired point along the catheter length. The thin covering may be integral with the catheter shaft, or may be a separate component that covers only the portion of the catheter shaft immediately adjacent the outer portion of the guidewire lumen, or may be a thin tubular construct that surrounds the entire catheter shaft. Moreover, polymer film can be used in combination with one or more elements to produce novel catheter constructions.

Clot disruption and dissolution are achieved using a catheter having both an agitator and the ability to deliver a thrombolytic agent. The catheter is introduced to a target region with a blood vessel and the agitator manipulated to engage and disrupt a region of clot therein. The thrombolytic agent, such as tPA, streptokinase, or urokinase, is directly released into the clot at the point where the agitator is engaging the clot. In this way, the thrombolytic activity of the agent is enhanced and the dissolution of the clot is improved.

An exercise device having many advantageous features is described, including the ability to provide a user selected resistance from nearly zero resistance to the user's full body weight, the ability to easily adjust between exercises and between users, and the ability to balance the device between reconfigurations to provide for ease-of-use. The device includes an inelastic adjustable length member with two arms and a grip at both ends, and a centrally located anchor that provides for a distribution of the length between the arms. In one embodiment, the exercise device is compact and can be removably attached to a door frame. When grabbing each of the grips and uniformly pulling away from the anchor, the arms of the device center on the anchor.

A butt stock for a shoulder held firearm with an horizontally and vertically adjustable cheek rest, reversibility of the cheek rest without loss of any of the other adjustments, a shoulder pad assembly to allow from 0 to 360 degrees of adjustment of the angle of the shoulder pad to the rest of the shoulder held firearm, an adjustable length of pull, and a butt stock body that could function as a cheek rest even if the adjustable cheek rest were to be disconnected.

The invention discloses an expansive type silencer and a fresh air system and relates to the technical field of indoor ventilating and exhausting equipment. The expansive type silencer and the fresh air system are invented for solving the problem that an existing expansive type silencer cannot be used for achieving broadband sound eliminating. The expansive type silencer comprises an expansion pipe. Connecting nozzles are arranged at the two ends of the expansion pipe. The area of the sections of the connecting nozzles is smaller than the area of the section of the expansion pipe. The expansion pipe comprises a fixed pipe section and a telescopic pipe section. The end, close to the fixed pipe section, of the telescopic pipe section is matched and connected with the fixed pipe section in a sleeving manner and can slide in the length direction of the fixed pipe section to adjust the length of the expansion pipe. The expansive type silencer is used for the fresh air system.

By virtue of one embodiment of the present invention, dynamic signal to noise ratio measurements made on received signals are used to identify degraded segments of a channel. The degraded segments are then no longer used for transmitting payload data. In the context of an orthogonal frequency division multiplexing (OFDM) communication system, degraded OFDM subchannels, as determined on a real-time basis, are not used to transmit payload data. In an OFDM network where access is shared in the time domain among multiple transmitters and a single allocable time slot includes an integer number of OFDM bursts, the medium access control layer adjusts packet length, and therefore the amount of data to be included in a given slot, in response to the fluctuating number of available subchannels.

The invention discloses an upper limb rehabilitation training robot. The upper limb rehabilitation training robot comprises a pedestal, an ergonomic seat, a rehabilitation mechanical arm and a man-machine interaction control cabinet, wherein the pedestal is provided with a height adjusting mechanism and a transversing mechanism; the transversing mechanism is provided with a suspending arm; the rehabilitation mechanical arm comprises a shoulder abduction/adduction joint, a shoulder bending/stretching joint, an upper arm, an elbow joint, a front arm inward turning/outward turning joint, a front arm, a wrist bending/stretching joint, a palm and fingers, wherein the shoulder abduction/adduction joint is arranged on the suspending arm; the shoulder bending/stretching joint is connected with the shoulder abduction/adduction joint; the front arm is connected with the upper arm by the elbow joint and provided with the front arm inward turning/outward turning joint; the palm is connected with the front arm by the wrist bending/stretching joint and connected with the fingers by a connecting rod; the upper arm, the front arm and the palm are fixedly connected with three force sensors; and the sensor fixedly connected to the upper arm is a two-dimensional sensor. The robot provides composite rehabilitation motion for each joint of the upper limb of a patient in a three-dimensional space and can finish the rehabilitation training of the upper limb with high quality.

A telescopically adjustable pipe includes an outer tube, an inner tube, an inner bushing, a sleeve, a push member, a mounting bracket, a positioning member, and a retaining member. Thus, the positioning member is moved by movement of the push member and is detachably locked in the respective positioning hole of the inner tube to lock the inner tube in the outer tube, so that the inner tube is locked in and cannot slip from the outer tube.

An exercise device having many advantageous features is described, including the ability to provide a variety of different accessory grips to the user, and the ability to easily mount the device to a wall. One exercise device described is an inelastic resistance device having integral hand grips. The accessory grips are removably attachable to the integral grip of an exercising device, and provide for gripping by the hands, foot or other body parts. The selection of a specific accessory grip allows the user to exercise by specific body parts and provides for a greater number of possible exercises. Accessory grips are attachable to the integral grips, greatly adding to the flexibility of the device. In addition, a novel hand grip is described having a plurality of cords that can be selected for gripping, and a bracket for mounting a door jamb mountable exercise device to a wall is described.

A flexible display device according to an embodiment of the invention comprises: a flexible screen, a shell and a bottom support part, wherein the shell comprises an accommodating part and a support seat; the bottom support part and the flexible screen are connected and overlapped; the bottom support part comprises a fixed support part and a rollable support part which are sequentially distributedalong the length direction of the flexible screen; and the flexible screen is in sliding fit with the support seat through the bottom support part. In the flexible display device according to the embodiment of the invention, the flexible screen can be glidingly arranged on the support seat through the bottom support part; the flexible screen and the rollable support part can synchronously stretchout of or retract in the accommodating part; the fixed support part always bears the flexible screen below partial flexible screen; and on the premise of making the flexible screen telescopic, the flatness of the flexible screen is improved, the damage of the flexible screen is reduced, and the display effect of the display screen is optimized.

Apparatus comprising a member (6) arranged to revolve about a remote centre of motion (O) and a base link (3) coupled to a mounting fixture (1). A first link (4) and a second link (5) are pivotably coupled to the member at respective distances (L1, L2) from the remote centre of motion (O) and are translatable relative to the base link (3) along a first direction and at a fixed ratio of displacement. The ratio of said respective distances equals said fixed ratio of displacement, enabling the member (6) to revolve about the remote centre of motion. The apparatus is characterised in that it comprises means (7) for generating translational motion of a first element (37) and of a second element (57) along parallel but opposite directions. The means for generating translational motion is provided on the first link (4) and is arranged to provide motion parallel to the first direction. The base link is fixed in a position, the first element (37) is fixed to the base link (3) and the second element (57) is fixed to the second link (5), such that generation of said translational motion of the first element (37) and of the second element (57) enables the first link (4) and the second link (5) to translate relative to the base link (3) with said fixed ratio of displacement.

A mobile terminal includes: a terminal casing including a first casing and a second casing combined with the first casing; an external antenna mounted on an external surface of the terminal casing; an internal antenna mounted within the terminal casing; and at least one fastening screw that fastens the first and second casings and electrically connects the external and internal antennas. The size and thickness of the terminal can be reduced.

A bone plating system is provided that permits maintenance of a compression force while also accommodating bony subsidence, among other features. Methods of implantation are also provided that improve alignment and placement during implantation and avoid maneuvers that weaken the vertebral bodies. A modular distraction screw is placed during the initial stages of surgery when all relevant landmarks are still intact. After completion of the surgical bone work, a proximal end of the distraction screw is detached, leaving a protruding distal segment implanted in the centerline of the vertebral bodies above and below the newly fused disc space. A bone plate is guided into proper position relative to the upper and lower vertebra by attaching the bone plate to the protruding distal segments. The distal segments of the distraction screws are tightened onto the plate and the plate is held stationary while bone screws are placed. The bone plating system is also extendable, allowing additional bone plates to be placed and coupled with existing plate components to create a multi-level plating system. Additional bone plates may be placed contemporaneously or during a subsequent surgical procedure.

A sanitary napkin has a strip that extends rearwardly to reside in the intergluteal crevice. The pad is sized and configured to fit snugly against the wearer's body without penetrating the vaginal orifice. The strip provides improved body contact thus providing similar protection with a smaller pad and a discretion benefit to the user. The invention provides various alternative mechanisms for varying the length of the strip by the user.