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A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone.

A dosage device for preparing a predetermined dosage of a liquid substance, particularly a liquid medication, includes: a housing format with a compartment; a cylinder open at one end and received in the compartment; a piston movable within the cylinder and defining a dosage chamber between one side of the piston and the second end of the cylinder for receiving a predetermined dosage of the liquid substance; a dosage fixing assembly movable through the one end of the cylinder and precisely controlled to fix the position of the dosage fixing assembly, and thereby the position of the piston when in contact with the dosage fixing assembly; the dosage fixing assembly when moving through the one end of the cylinder, closing the open end to define a control chamber with the other side of the piston; and a fluid pressure source communicating with the control chamber between the piston and dosage fixing assembly, the fluid pressure source being controllable to increase the pressure in the control chamber to move the piston away from the dosage fixing assembly, and to decrease the pressure in the control chamber to move the piston towards and into contact with the dosage fixing assembly. Also described is a method of preparing a predetermined dosage of a liquid medication substance utilizing the above-described dosage device.

An embedding element (11) for embedment in the root of a wind turbine rotor blade (15) of a fibre composite material, said embedding element being elongated and having a first end portion (1) and a second end portion (2) and provided with fastening means, eg a threaded hole, a threaded rod or the like in its first end portion (1). Between its two end portions (1, 2) the embedding element (11) is provided with a first longitudinal lateral face (14) extending substantially concavely in a cross-sectional view perpendicular to the longitudinal axis of the embedding element, and with a second longitudinal lateral face (16) facing opposite the first lateral face (14) and extending substantially correspondingly convexly in a cross-sectional view perpendicular to the longitudinal axis. The invention further relates to a method of producing such an embedding element, a method of producing a wind turbine blade (15) of fibre composite material, a plurality of embedding elements (11) being embedded such in juxtaposition in the blade root that they follow the circumference of the root and the concave lateral face (14) of each embedding element (11) engaging the convex lateral face (16) of a juxtaposed embedding element and allowing access to the fastening means (24) from the outside.

This invention relates to a lens pattern assembly fixing structure and a method. The fixing structure includes a lens cone and a lens base, in which, screw threads and a gluing slot are set at the outside wall of the lens cone, several holes are opened on the lens base circum wall and screw threads on the internal wall. The fixing method includes the following steps: putting the lens pattern assembly in the base then fixing the lens pattern assembly on the base with UV glue via several holes on the base circum wall, finally, heating the cure glue to fix it in the gluing slot at the joint of the base top and cone.

The invention discloses a method for installing a prefabricated pier column component of a prefabricated bridge. The prefabricated pier column is correctly assembled and placed on a bearing platform which is poured in advance, and pier column bed mortar is arranged between the prefabricated pier column and the bearing platform. The method includes the steps that before the prefabricated pier column takes its place, a butt joint mark is marked; according to the marked height, a center cushion block is placed; after the prefabricated pier column hung is inserted into a reserved rebar on the bearing platform, the butt joint marks are aligned one by one; jacks for adjustment are placed, and a crane unloads force and lowers the prefabricated pier column to the center cushion block; the perpendicularity of the prefabricated pier column is adjusted by the jacks until meeting design demands, the jacks are locked, and piston stroke and the thickness of the pier column bed mortar are recorded; the prefabricated pier column is lifted away; a grouting template for preparing the pier column bed mortar is installed on the bearing platform, a grouting material is prepared based on the measured data of the thickness of the pier column bed mortar, and the pier column bed mortar is grouted and formally takes place; then the crane lowers the prefabricated pier column, the prefabricated pier column is in the right place, the jacks are locked, mortar is grouted for maintenance through grouting holes, and installation is completed.

The present invention discloses a composition of a knee implant comprising biomaterials such as combination of Ti—Nb—Zr alloy and tantalum to support osseointegration. The present invention further discloses a method of manufacturing customized patient-specific knee implant using 3D printing technology to suit the patient. The method involves the use of high energy source such as fiber laser or electron-beam. The base plate is mounted on the CNC. The energy source creates a melt pool on the base plate and the energy source is fed with a biomaterial in the form of wire or powder. The biomaterial is deposited on the base plate layer by layer, which solidifies in the melt pool of the base plate. The knee implant thus fabricated suits the elastic modulus of the bone and is useful as customized implant in patient undergoing replacement surgery.

The invention relates to the technical field of textile printing and dying, in particular to a composite printing paste and a preparation method thereof. The raw material of the composite printing paste comprises the following components in percentage by weight: 1.45-1.55 percent of modified carboxymethylcellulose, 0.45-0.65 percent of dying resistant salt, 0.1-0.2 percent of sodium hexametaphosphate, 4-5 percent of sodium bicarbonate, 8-9 percent of urea, 5-6 percent of 909 thickening agent and the balance of water. The water is added at normal temperature to be uniformly stirred for later use. When used as active dye printing paste, the invention has high tinctorial yield, saves dye and is excellent novel composite printing paste.

The invention relates to a diffraction grating light signal monitoring instrument with dual channel structure, the monitoring instrument can realize the measuring, monitoring and analyzing of light network communication signal and fiber sensor signal performance, and the miniaturization and intelligentize of high performance light signal monitoring device can be realized. It characterized in that: 1) light scanning lens is set between the diffraction beam of light emitted from the diffraction grating firstly and the second diffraction grating, the wavelength tune function and light signal wavelength dispersion function can be separately accomplished by the light scanning lens and fixed diffraction grating, and the dispersion and filter are accomplished by the same diffraction grating; 2) a right-angle triple prism is set between the light scanning lens and diffraction grating to make the light signal realize the condensation and expanding in space width, 3) standard reference wavelength unit is set before the photoelectric conversion unit; 4) network communication interface unit is set, user can measure, monitor and analyze the light signal property via remote terminal.