58results about How to "Adjustable flexibility" patented technology

A method for accessing a target site in the body by transferring a guidewire from an initial insertion site on the body to a different insertion site on the body is provided. In one aspect, a method for transferring a medical device or component, such as a sensor lead, from an initial insertion site to another insertion site is also provided. A guidewire of sufficient length, pliancy and deformability to perform a transfer from one insertion site to another insertion site is provided. In one aspect, the guidewire comprises a removable core mandrel to increase rigidity, facilitate insertion and / or improve steerability. A kit or system, comprising introducers, guidewires and catheters for performing a guidewire or device transfer is also provided.

A transfer guidewire assembly configured to manipulate an implanted elongate body includes a flexible elongate portion, such as a guidewire, and coupler. The flexible elongate body has a proximal end and a distal end attached to the coupler. The coupler can include a catheter and / or a handle. The handle can include a screw. The coupler is configured to be removably attached to the end of an implanted elongate body, for example, by forming an interference fit with the outside diameter of the implanted body. A method for transferring an end of an implanted medical component from first site to a second site within a patient, such as a pacemaker, defibrillator, and / or sensor lead, etc., includes inserting a guidewire into the body at the first site and externalizing the guidewire at the second site. A proximal portion of the implanted component near the first site and is attached to the guidewire. The proximal portion of the implanted component is pulled through the patient's body and out the second site with the transfer guidewire assembly.

The invention relates to a perfluoro alkyl ethyl acrylic ester-modified single-component acrylic resin and a preparation method as well as application thereof. The perfluoro alkyl ethyl acrylic ester-modified single-component acrylic resin has the structural formula which is shown in the specification, wherein n is equal to 4, 6 or 8; and the molecular weight is 40,000-55,000. The preparation method comprises the following steps of: adding a solvent into a reaction vessel and heating to 60-80 DEG C; uniformly mixing methyl methacrylate, acrylic acid, butyl acrylate, hydroxyethyl acrylate and perfluoro alkyl ethyl acrylic ester type monomer with an initiator and dropwise adding for 2-3 hours; preserving heat for 0.5-1 hour; and cooling to 40-70 DEG C and discharging. The resin prepared by the invention has high thermal stability and chemical resistance stability and low surface energy and is used as a main raw material of a paint; and a coating also has low surface energy, strong water-proof and oil-proof capacities and high weather resistance, corrosion resistance and aging resistance, has superior mechanical performance and high glossiness of an acrylic ester paint, can be cured at normal temperature and is easy and convenient to use.

The invention discloses a flexible control method and system for a multi-degree-of-freedom mechanical arm, belongs to the technical field of multi-degree-of-freedom mechanical arm control, and solves the problem of how to obtain load gravity and a gravity center position only through a load parameter identification manner when a tail end tool of the mechanical arm is changed and automatically perform load parameter compensation. Kinematics modeling is conducted according to the characteristics of the mechanical arm, mechanical arm tail end tool load parameters including gravity and the gravity center position are identified, force feedback of a six-dimensional force sensor is obtained, and tool load parameter compensation is conducted; after compensation, force data are substituted into a flexible control strategy module, a pose offset is calculated, a real-time interpolation target track point of the mechanical arm is adjusted, the adjusted target track point is sent to a mechanical arm joint after inverse solution, the joint position and speed in the movement process of the mechanical arm are collected, and load parameter compensation control is automatically carried out; and according to the scheme, when the tail end tool is changed, the gravity and the gravity center position of the tool can be obtained only through the load parameter identification manner, load parameter compensation is automatically carried out, and the working efficiency is improved.

An electronic device is provided. The electronic device includes a hinge, a first housing connected to the hinge, a second housing connected to the hinge so as to fold the first housing, and a display disposed to receive support of at least a portion of the second housing from at least a portion of the first housing through the hinge. The display includes a display panel, at least one polymer member disposed at a rear surface of the display panel, and a conductive plate disposed at a rear surface of the at least one polymer member. The conductive plate includes a first flat portion facing the first housing, a second flat portion facing the second housing, and a flexible portion configured to connect the first flat portion and the second flat portion and disposed to be bendable. The flexible portion includes support pieces spaced apart from each other through slits, and a conductive elastic member configured to connect electrically and physically the first flat portion, the support pieces, and the second flat portion.

This current collector for a lithium electrochemical accumulator includes an electronically-insulating viscoelastic foam associated with an electroconductive polymer film.

A signal processor for providing a processed version of an input signal in dependence on the input signal includes a windower configured to window a portion of the input signal, or of a pre-processed version thereof, in dependence on a signal processing window described by signal processing window values for a plurality of window value index values, in order to obtain the processed version of the input signal. The signal processor also includes a window provider for providing the signal processing window values for a plurality of window value index values in dependence on one or more window shape parameters.

The invention discloses a deep ultraviolet electro-catalysis assisted magnetorheological elastomer leveling device and method. A polishing device comprises a polishing disc and a first driving mechanism; a magnetorheological elastomer polishing mechanism and a nozzle are arranged above the polishing disc; a plurality of light source grooves are formed in the upper surface of the polishing disc, deep ultraviolet light sources are arranged in the light source grooves, and a gallium oxide crystal clamping mechanism is arranged above the deep ultraviolet light sources; the nozzle is arranged at the lateral upper portion of the clamping mechanism; the magnetorheological elastomer polishing mechanism comprises a tool shaft, a polishing tool head and a second driving mechanism; and the tool shaft is connected with the polishing disc through a wire and an electric brush. According to the deep ultraviolet electro-catalysis assisted magnetorheological elastomer leveling device and method, a gallium oxide wafer is subjected to efficient, ultra-smooth and lossless polishing through the polishing device, so that a lossless surface with sub-nano-scale roughness can be obtained.