461results about How to "Exact length" patented technology

A system and method used in total joint arthroplasty of a ball and socket joint such as hip and shoulder replacements for accurate positioning of a prosthesis through pinless surgical navigation during replacement surgery according to a predetermined distance from the center of rotation of the replaced joint and/or articular surface to obtain the proper length, offset, and biomechanics of the replaced joint.

The present invention relates to lighting strips and more particularly to modular lighting systems comprising lighting devices, for example, lighting strips, physically and electrically connectable with one another by way of a plug and socket integrally formed at opposing ends of the lighting strips. The lighting strip devices can be made of flexible material to allow for applying the lighting devices along flat as well as contoured surfaces. The lighting strips can also be rigid. More particularly, embodiments of the invention include modular lighting strips comprising: a non-conductive substrate strip comprising an electrical circuit; a plurality of light sources operably connected to the electrical circuit; a plug integrally formed at an end of the substrate strip; and a socket integrally formed at an opposing end of the substrate strip; wherein the plug and socket provide for removable, friction-fit, latch or latchless, and electrical interconnection of two or more circuits. Also included in the invention are connector assemblies comprising the inventive socket and plugs integral to PCBs for use in the field of electronics. One or more lighting strip can be combined to form lighting systems, which are useful in many functional and decorative lighting applications. The lighting systems are useful for any residential or commercial application where modular, discrete, low-profile, and/or flexible lighting is desired. The lighting strips of the invention can be used in particular for back lighting, accent lighting, aisle or path lighting, contour lighting, elegant interior decoration, holiday decorations, or landscape lighting.

A needle assembly including a cover, an inner shield, a needle and a hub assembly is provided. After use, the cover is placed over the distal (patient) end of the needle and the inner shield can be used to cover the proximal (non-patient) end of the needle. The inner shield comprises flexible extensions above its open end to secure the inner shield over the proximal end of a needle in the needle assembly. A needle hub is also provided that eliminates adhesive bumps at the base of the needle and further distributes needle angular bending along an irregular surface, which facilitates proper insertion technique and effective needle length. The hub further includes stanchions or castellations on its edge such that when the patient uses proper injection techniques, the edges of the hub leave a distinctive impression in the skin of a user for a short period of time.

Delivery catheters and systems are adapted for delivering multiple discreet prostheses in body lumens. An exemplary delivery catheter comprises a sheath, a pusher for moving the prostheses relative to the sheath, and a valve member for selectively retaining the prostheses in the sheath. For balloon expandable stents, an elongated shaft and an expandable member are slidably disposed in the sheath, and the prostheses are positionable on the expandable member for deployment in the body lumen. The valve member allows a selected number of prostheses to be deployed from the sheath while retaining other prostheses within the sheath.

An antibiotic delivery system including an intramedullary stem that is adapted to be removably mounted into a medullary canal of a bone. The stem includes a body having an inlet adapted to be in fluid communication with a source of liquid-borne antibiotic and a plurality of outlets disposed along the stem. A channel extends between the inlet and the plurality of outlets for delivering a fluid-borne antibiotic from the inlet to the plurality of outlets so as to distribute the antibiotic along the medullary canal in a controlled fashion. A method of treating an infected joint during a two-stage re-implantation of an orthopedic implant is also disclosed.

A toothbrush having a toothbrush head with a top side at which cleaning elements for cleaning teeth are arranged. The cleaning elements form various zones of care or arrangements to meet specific cleaning and manufacturing requirements.

A hand held hair trimming device which when pulled through the hair trims only a determined portion of the ends of hair strands while leaving adjacent hairs uncut. The device will cut a predetermined length off only the distal ends of the hair shafts each time it has the hair drawn through one or a plurality of serpentine pathways formed by retainer cavities and an engageable retainer. The cutting head portion of the device may be removed and replaced and optional hair dryer or vacuum may be attached to an aperture on the rear of the cutting head to dry hair, vacate cut ends, or encourage distal ends of hairs toward the cutting blade.

The invention relates to a camera modeling and calibration system and method using a new set of variables to compensate for imperfections in line of sight axis squareness with camera plane and which increases accuracy in measuring distortion introduced by image curvature caused by geometric and chromatic lens distortion and wherein the camera image plane is represented from a full 3D perspective projection.

The invention discloses a winding machine comprising a base body for installing each mechanism, a tension mechanism for leading yarns in, a winding stepper motor and a wiring stepper motor both of which are arranged at an interval on the base body, a wire clamping-breaking mechanism arranged at the upper part of the winding stepper motor, and a central controller for controlling the concerted action of the tension mechanism, the winding stepper motor, the wiring stepper motor and the wire clamping-breaking mechanism, wherein a winding stepper motor driving shaft can be provided with a core winding clamp or a coreless winding clamp; a wiring stepper motor driving shaft can be provided with a wiring wheel; the wiring wheel is provided with a spiral wire slot along the circumference; the twosides of the wiring wheel are respectively provided with a wire creasing wheel and a wire retaining rod; and the wire clamping-breaking mechanism comprises a wire clamping-breaking head and a pneumatic component for driving the wire clamping-breaking head to act. The winding machine can be used for winding a skeleton clew or a non-skeleton clew and is high in automatic degree and winding speed; in addition, the wound clew is regular and attractive in appearance and the control on the length is correct.

The present invention pertains to a supplied air respirator that uses an adjustable length hose as a conduit between the respirator facepiece and the clean air supply source.

The present invention relates to two new wave field microscopes, type I and type II, which are distinguished by the fact that they each have an illumination and excitation system, which include at least one real and one virtual illumination source, and at least one objective lens (in the case of type II), i.e., two objective lenses (in the case of type I), with the illumination sources and objective lenses being so positioned with respect to one another that they are suited for generating one-, two-, and three-dimensional standing wave fields in the object space. The calibration method in accordance with the present invention is adapted to this wave field microscopy and permits geometric distance measurements between fluorochrome-labeled object structures, whose distance can be less than the width at half maximum intensity of the effective point spread function. The invention relates moreover to a method of wave-field microscopic DNA sequencing.

A method and system for identifying a lateral deviation in the course of a road segment is described. Positional data is collected from a plurality of vehicles travelling along a road stretch. A map matching error associated with the position data is used to determine an average map matching error and average absolute map matching error for travel along the road stretch. A lateral deviation in course is identified when the average map matching error measures are both above a given threshold, and where the detected deviation is of a given minimum length. Other indicators of deviation can be considered including a direction of the possible deviation, and impact on travel in the opposite driving direction. Data relating to the determined deviation is generated, including a speed of travel through the deviated region, and used to enhance traffic information.

The invention is directed toward a surgical forceps comprising a pair of scissor arms connected together by a pivot where the proximal ends forms a hand grasping surface and the distal ends are provided with jaw members. Each jaw member has a curved inner surface with a plurality of teeth and measurement markings at spaced intervals along an end surface of the first and second jaws. Each jaw member is semi-circular in shape and extends outward from each respective arm at an angle of about 110° so that when said scissor arms are closed together the jaw ends move toward each other. A rachet assembly is mounted on one scissor arm to engage a pawl mounted on the other arm to lock the jaw members in a fixed position.

A system and method are provided for helping implant a hip prosthesis in an individual, which includes an acetabulum intended to be placed in the hip bone of the patient and a femoral part intended to be integrally connected to the femur of the individual. The method includes: obtaining, before the operation, images issued by a device that images a human body and locates a position of images in space. The images are taken in at least three reference positions: standing; recumbent; and sitting. Before the operation, the method determines a pelvis version of the individual in different positions by analyzing the images. During the operation, the method measures a position of the acetabulum with relation to the pelvis of the individual, and simultaneously restores information representative of prosthetic mobility of the hip with relation to each of the reference positions, for a current position of the acetabulum.

A method for compensating length of differential pair and a method for calculating compensation length of the zigzagging type delay line thereof are provided. The method for calculating compensation length of the zigzagging type delay line includes following steps. The quantity A of hypotenuse and the quantity B of bends of the zigzagging type delay line are counted. The width W of the zigzagging type delay line is measured. The height S₁ of the parallel line segment of the zigzagging type delay line is measured. An equation

is calculated for calculating the compensation length L_diff of the zigzagging type delay line.

An adjustable fluid-filled lens or minor assembly 100 comprising a fluid-filled envelope and a supporting structure therefor; the fluid-filled envelope being constituted by a first wall that is formed of a distensible elastic membrane 15 having an exterior optical surface of variable focusing power, a second wall 18 that is spaced from the first wall on a z-axis, and a collapsible peripheral side wall 17 that extends between the first and second walls, and being filled with a substantially incompressible fluid 16; a membrane holding structure 14 that is attached to a peripheral edge of membrane 15 for holding the membrane under tension; and one or more selectively operable actuator assemblies r1, r2, r3 for moving one or more corresponding regions of the peripheral edge of the membrane on the z-axis towards and away from the second wall 18 for controlling the profile of the peripheral edge of the membrane; wherein the or each actuator assembly comprises a connecting member 91, 92, 93 that is attached to the membrane or membrane holding structure at a respective actuation point, a linear actuator 531, 532, 533 that is mounted to the supporting structure and a linkage 81, 82, 83 that is connected between the connecting member and an actuation point a1, a2, a3 on the linear actuator; wherein the linear actuator is a linear SMA actuator comprising an array of SMA wires 53 that are coupled together to work in parallel and which extend transversely of the z-axis, and the linkage is configured for converting linear motion of the actuation point of the SMA actuator in a direction transverse the z-axis to linear motion of the connecting member on the z-axis, thereby to move the corresponding region of the peripheral edge of the membrane 5 towards or away from the second wall 18.

When a space region shorter than the radius of a beam spot is formed, pre-heating with an assist pulse is not performed, and an off pulse pattern is fixed at a base power level. When a space region longer than the radius of the beam spot and shorter than the diameter of the beam spot is formed, an assist pulse is applied to the end of the space region to be formed. The length of the assist pulse is made greater, the longer the space region to be formed. Further, when a space region longer than the diameter of the beam spot is formed, an assist pulse is applied to the end of the space region to be formed, and the length of the assist pulse is kept constant regardless of the length of the space region to be formed.