57results about How to "Stable base" patented technology

A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment.

A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment.

The present invention comprises methods and compositions for antimicrobial silver compositions comprising silver nanoparticles. The present invention further comprises compositions for preparing silver nanoparticles comprising at least one stabilizing agent, one or more silver compounds, at least one reducing agent and a solvent. In one aspect, the stabilizing agent comprises a surfactant or a polymer. The polymer may comprise polymers such as polyacrylamides, polyurethanes, and polyamides. In one aspect, the silver compound comprises a salt comprising a silver cation and an anion. The anion may comprise saccharinate derivatives, long chain fatty acids, and alkyl dicarboxylates. The methods of the present invention comprise treating devices with the silver nanoparticle compositions, including, but not limited to, such devices as woven wound care materials, catheters, patient care devices, and collagen matrices. The present invention further comprises treatment of humans and animals wacr6ith the antimicrobial devices described herein.

A two-stage or component-based valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The prosthetic valve comprises a support structure that is deployed at a treatment site. The prosthetic valve further comprises a valve member configured to be quickly connected to the support structure. The support structure may take the form of a stent that is expanded at the site of a native valve. If desired, the native leaflets may remain and the stent may be used to hold the native valve open. In this case, the stent may be balloon expandable and configured to resist the powerful recoil force of the native leaflets. The support structure is provided with a coupling means for attachment to the valve member, thereby fixing the position of the valve member in the body. The valve member may be a non-expandable type, or may be expandable from a compressed state to an expanded state. The system is particularly suited for rapid deployment of heart valves in a conventional open-heart surgical environment.

A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable frame, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the frame attached thereto. The frame may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes an integrated handle shaft and balloon catheter. A valve holder is stored with the heart valve and the handle shaft easily attaches thereto to improve valve preparation steps.

A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable frame, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the frame attached thereto. The frame may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes an integrated handle shaft and balloon catheter. A valve holder is stored with the heart valve and the handle shaft easily attaches thereto to improve valve preparation steps.

Docking devices can be configured to be positioned at a native valve of a human heart to provide structural support for docking a prosthetic valve. The docking devices generally have coiled structures that define an inner space in which the prosthetic valve can be held. Some docking devices can be adjusted from a first wider configuration which facilitates easier advancement of the docking device around the valve anatomy, to a second narrower configuration after the docking device has been delivered to more securely hold the prosthetic valve. The docking device may also be better held in position at the native valve after adjustment to the narrower configuration. Some docking devices include a stabilization segment or double coil configuration, where a main coil region is configured to securely hold a prosthetic valve, while a stabilization coil region is configured to more stably hold the docking device at the native valve.

A tablet case with a cover, the tablet case comprising a housing having three upstanding walls, at least one of the three upstanding walls having a flange, the housing being adapted to receive and retain a tablet. The tablet case further comprises a cover having a substantially rectangular foldable planar member and an elongated member which extends from the cover into an indentation on the inside of the housing. A section of the elongated member is secured to the indentation to form a substantially planar surface arranged to abut the rear wall of a tablet. First and second magnetic means are provided on the housing and cover respectively to allow the cover to be folded into a stand and secured to the housing or to allow the cover to simply shield a tablet screen.

A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable stent frame, thereby enabling attachment to the annulus without sutures. The prosthetic valve may be a commercially available valve with a sewing ring and the stent frame attached thereto. The stent frame may expand from a conical deployment shape to a conical expanded shape, and may have a cloth covering its entirety as well as a plush sealing flange around its periphery to prevent paravalvular leaking.

A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable frame, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the frame attached thereto. The frame may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes an integrated handle shaft and balloon catheter. A valve holder is stored with the heart valve and the handle shaft easily attaches thereto to improve valve preparation steps.

A bi-modal ankle-foot device that provides a curved effective shape appropriate for walking and a flattened effective shape for standing. The bi-modal ankle-foot device includes a foot piece and a lockable ankle joint connected to the flat foot piece, the ankle joint and foot piece cooperating to provide a curved shape for walking when the ankle joint is unlocked and to provide a flattened shape for standing when the ankle joint is locked.

An exercise machine has a mobile base and an upright support extending upwards from the mobile base. An upper support assembly extends forward from an upper portion of the upright support and an exercise device is suspended from the upper support assembly at a location spaced forward from the upright support. The mobile base has caster wheels and can be positioned from either side of a bed so as to extend partially under a bed with the upright support located on one side of the bed and the exercise device suspended over the bed in a position accessible by a patient lying supine in the bed for performing exercise. An anchoring system resists movement of the base for stability when exercise is performed.

The invention discloses a television installing and adjusting mechanism which comprises a base. Air cylinders are connected to two sides of the upper end of the base, the middles of the air cylinders are connected with pistons, the lower ends of the pistons are connected with damping springs, the lower ends of the damping springs are connected with spring seats, the upper ends of the pistons are connected with piston rods, the upper ends of the piston rods are connected with supporting seats, two sides of the upper end of each supporting seat are connected with annular sliding grooves, the upper ends of the annular sliding grooves are connected with installing bases, telescopic rods are arranged on the right sides of the lower ends of the installing bases, the middles of the upper ends of the installing bases are connected with lead screws, the middles of the lead screws are connected with driving wheels, sliding plates are connected to the upper ends of the lead screws, the left sides of the upper ends of the sliding plates are connected with columns, limiting sleeves are arranged in the middles of the columns, limiting rods are arranged in the middles of the limiting sleeves, and the left ends of the limiting rods are connected with the limiting blocks. The television installing and adjusting mechanism achieves adjustment of the horizontal direction and vertical viewing angle of a television, increases the visual experience of a viewer, meanwhile makes a television base stable and is good in practicability, and the instability phenomenon of the television is avoided.

The invention belongs to the field of robot assembling and particularly relates to a cabin section assembling platform. The invention aims to solve the problems in the prior art that a cabin section assembling platform is low in precision, complicated in design, insufficient in reliability, slow in response and difficult to coordinate. The cabin section assembling platform provided by the invention comprises a bearing module, a posture adjusting module, a detection module and a base; the posture adjusting module supports the bearing module to bearing a cabin section; the posture adjusting module comprises a plurality of mechanical arms, a spherical hinge and a controller; the mechanical arms are arranged on the plane of the base in a sliding way; and the controller drives the mechanical arms and the spherical hinge based on the detection module to realize spatial six-degree-of-freedom motion of the bearing module and the cabin section. The cabin section assembling platform has redundancy based on mutual cooperation of a plurality of mechanical arms and can continuously work under the condition of local failure; and the cabin section assembling platform has high bearing capacity, detects internal stress and cabin section stress through distributed force sensing and can complete high-precision and high-efficiency cabin section flexible assembling.

A implement for storing weight lifting plates whereby the plates cannot be placed incorrectly. The invention comprises plural foundation members adapted to create a base of support or to attach the implement to existing structures. Mainframe members connect upwardly therefrom to form the structure of the implement. Each plate station is comprised of two horizontal-extender members mounted perpendicular to the mainframe member at a predetermined height and protruding laterally by various distances. Attached to the outermost end of each horizontal-extender member is a forwardly protruding plate-support member, adapted to support the plates with maximal surface contact. A height-limiting member is centrally mounted to the mainframe member and protruding forwardly, superior to the plate-support members at a predetermined distance depending on the plate size. Mounted flush to the mainframe member, between the plate-support and height-limiting members, is a false plate adapted to render the plate location obvious when the station is empty.

A slow cooker and method of cooking with a slow cooker is provided. The slow cooker has a base unit with a housing defining a heating chamber for heating and retaining a cooking basin placed therein, a lid for covering the cooking basin, and at least two cooking controls for controlling a time and a temperature for cooking at a first desired temperature and maintaining a cooked item at a second desired temperature. The method of cooking preferably includes at least two cooking controls cooperating to operate the slow cooker so that at the end of a cooking time at the first desired temperature set by the at least two cooking controls, the slow cooker operates to heat the cooking chamber to the second desired setting.

A pipe clamp for clamping objects has wide, stable feet that prevent the clamp from tipping over. The feet are of such a height that the clamp handle can be rotated by the user without interference from the bench on which the pipe clamp rests. The clamping faces have holes drilled through them to allow jigs or cauls to be attached to the clamping faces to clamp unusually shaped objects. The clamp also has a hook on the foot for convenient hanging of the clamp for storage.

The invention relates to a safe wind-driven generation device with climatic adaptation function. The device comprises a base, a supporting rod, a main body and paddle. The device is characterized by further comprising a heat dissipating mechanism and a stabilizing mechanism; the heat dissipating mechanism comprises a heat absorbing assembly, an air cooling assembly, a water cooling assembly and aswitching assembly; the stabilizing mechanism comprises a second motor, a lead screw, a lifting plate and two stabilizing units. According to the device, different heat dissipating modes can be performed based on different climate through the heat dissipating mechanism, so that the main body can be subjected to temperature decrease temperature, and the problem the excessively high temperature in the main body influences a generator can be avoided; the probability of fault and natural explosion of a generator unit chamber can be decreased; the practicability and the safety of the wind-driven generation device are improved the base can be kept stable through the stabilizing mechanism; the wind-driven generator can be prevented from inclining and collapsing to endanger the life and property safety of people. Therefore, the safety and the reliability of the device are improved.

An impact actuator assembly has a housing having a front, a rear, two opposite sides, a top and a bottom, and defining an actuator receiving area. A hydraulic actuator is fixedly mounted in the actuator receiving area, and provided with an actuator head, at least a portion of which extends forwardly of the actuator receiving area. A nosepiece is fixedly attached to the front of the housing at a distance from the actuator receiving area, defining a space between the nosepiece and the actuator head. The nosepiece is provided with at least one longitudinal hollow guide for receiving a tool pin, each of the tool pins having a rear and a front. The rear of the tool pin extends in the space between the nosepiece and the actuator head and the front of tool pin extends beyond the front of the housing. A plurality of hydraulic connectors are mounted on the housing and operatively connected to the actuator. When the actuator is actuated, the actuator head is engaged in reciprocating longitudinal movement to cyclically impact the tool pin.

The present invention relates to a novel process for the purification of antibodies, e.g. monoclonal antibodies. The process utilizes an affinity resin comprising a solid phase material having immobilized thereto one or more low-molecular weight synthetic ligands. The affinity resins enable the separation of antibodies from even closely related proteins.

The invention provides a high pressure turbine guide vane chord width measuring clamp tool comprising a base plate, a support seat is fixed on the base plate, a pressing head is vertically mounted on the support seat and is used for tightly pressing a vane in a vertical direction, a first measurement device and a second measurement device are mounted on the base plate, the first measurement device comprises a fixed device, a first groove used for erecting a first digital display caliper is arranged on the fixed device, the second measurement device is a measurement seat, and the measurement seat is provided with a second groove used for erecting a second digital display caliper. The vane is first tightly pressed in the vertical direction via the pressing head on the support seat on the base plate, and the vane is positioned and fixed via the fixed device on the first measurement device. Artificial interference factors of a hand held vane can be eliminated via a fixed structure. Then parts such as the first measurement device, the second measurement device and the like are used for switching a vane measurement basis from the vane to measurement parts, and the basis is enabled to be stable and accurate. The measuring tool can be used repeated, a large batch of vanes can be measured and inspected, vane measuring and inspecting efficiency can be greatly improved, false inspection and missed inspection can be basically eliminated, and reference can be provided for future design of engine vanes of the same kind.

The invention discloses a pitch-variable spiral antenna. The antenna comprises a pedestal as a main bearing, a medium support cylinder fixed and positioned on the pedestal, two spiral arms rising in ahelical form on the medium support cylinder, and a coaxial grooved Balun coaxially positioned in the medium support cylinder in a penetrated way; the medium support cylinder includes a tapered hollowcylinder body whose aperture is reduced gradually from bottom to top; the two spiral arms extends from the bottom end to the top end of the medium support cylinder in the backward spinning direction;the top and bottom ends of each spiral arm are electrically connected with the coaxial grooved Balun; the spiral arms are the same in the pitch; and the pitch of each spiral arm is variable. Different steps are used to match different antenna bandwidths, and the wide wave beam feature of the whole antenna is ideal.

A high-speed modular platform has an upper level section having gas turbines on it for propulsion, and a lower level section has a lower periphery having a flexible skirt system connected to it to create an air cushion. Hollow struts extend between the upper level section and the lower level section. Each hollow strut is securely connected to the lower level section and has an opening communicating with a skirt volume inside of the flexible skirt system. Each hollow strut slideably engages the upper level section to permit sliding motion of the upper level section on the hollow struts toward and away from the lower level section. A gas turbine is connected to each of the hollow struts to vent, or force pressurized gas through them and create an air cushion with the flexible skirt system to enable high-speed transit over water and land surfaces and provide buoyancy.