1987 results about "Synthetic materials" patented technology

A fastener preferably made from a shape memory alloy is provided which can access internal tissue or other synthetic material by catheter delivery through an endovascular pathway. After the fastener is deployed through layers of tissue or other material, it assumes a shape that automatically applies to the layers of tissue or other material an appropriate hemostatic compression which is relatively independent of tissue or material thickness. The fastener is a suitable replacement for conventional non bio-absorbable sutures and staples in certain clinical applications. The shape, method of deployment, and low force requirements make the disclosed apparatus suitable for endosurgical procedures where access to the wound site is limited. A method for deploying the fastener is also provided.

An illumination system according to the principles of the invention may include a first LED and a carrier material. The carrier material may be comprised of plastic, synthetic material, polymer, latex, rubber or other material. The carrier material may also contain a phosphor, fluorescent material, organic fluorescent material, inorganic fluorescent material, impregnated phosphor, phosphor particles, phosphor material, YAG:Ce phosphor, or other material for converting electromagnetic radiation into illumination or visible light.

A method and device for inserting an implant of synthetic material or healthy bone or cartilage into a bone or cartilage defect of unknown depth. The device includes an inner shaft within a hollow outer shaft. One end of the inner shaft of the device is suitable for inserting into the bone or cartilage defect in order to determine the depth, while the other end of the outer shaft is suitable for holding an implant. The implant is cut to fit the defect. The device is partially transparent or translucent to allow visualizing of the implant and defect. The delivery device can be bent or curved to allow the device to be introduced to a defect at different angles and positions. The methods and devices are suitable for delivery of implants to defects having complex shapes.

This invention provides a vertebral implant for impaction in a disc space to restore and/or maintain desired disc space height and spinal orientation. The implant has an elongated basis body having a generally lens-shape provided by convex upper and lower surfaces. Bearing surfaces are provided on the cross-edge surfaces of the endwalls. Grooves are provided in the upper and lower surfaces positioned between the bearing surfaces. The implant can be prepared from a wide variety of materials including metallic materials, synthetic materials, polymeric materials, ceramic materials, and composite materials including reinforced materials i.e. glass, fiber, and/or carbon fiber reinforced materials (CFRP). These preferred materials for fabricating implants in the present invention reduce costs, increase service life and provide excellent physiological compatibility. The non-metallic material can be selected to be either a substantially permanent material, a biodegradable material or a bioerodable material. Further, the implant material can be provided to be radio opaque to facilitate monitoring of bone ingrowth both into the implant and between the opposing endplates of the adjacent vertebrae.

Mastopexy and breast reconstruction prostheses and implantation method that allow for radiographic imaging of the breast tissue. The prostheses are arcuate and elongate optionally meshed to conform with breast tissue when implanted. Prostheses are made from naturally occurring extracellular matrix, primarily collagen, that, allows for mammographic imaging without interference as is expected from synthetic materials.

An endoluminal device comprises a stent and a tubular graft supported by the stent. The graft has a proximal and a distal opening and comprises a synthetic material and a bioremodelable material. The bioremodelable material is disposed on an exterior surface in at least one band adjacent at least one of the proximal and distal openings.

Surgical implants operative to simultaneously function as a pubovaginal sling for the treatment of incontinence and as a support member to effectuate cystocele repair. The implant comprises a first sling portion operative to be positioned beneath the urethra, per conventional pubovaginal sling surgery. The implant further includes a second bladder support portion extending from the sling support portion that is oriented to extend beneath and be surgically attached to a portion of the bladder to thus enable the same to be supported to a degree necessary to effectuate cystocele repair. The implant may be fabricated from a unitary piece of harvested tissue, synthetic material or combinations thereof. Preferably, the sling portion of the implant is fabricated from a synthetic material whereas the bladder support portion of the implant comprises a segment of harvested tissue sewn to the sling portion.

A panel may include at least a substrate and a top layer provided on the substrate. The top layer may include a vinyl-based synthetic material layer. The substrate may be a wood-based substrate. A primer may be provided between the substrate and the vinyl-based synthetic material layer.

A sandal having an active, self-adjusting harness and method therefore typically used in the out-of-doors for rigorous activities includes rubber and synthetic materials and exhibits a lightweight robust, high-strength, flexible construction including an elongated sole for supporting a foot where the sole has a toe end and a heel end. A center toe strap is anchored in the toe end and includes a distal end fixedly connected to a front buckle. A rear strap is anchored in the heel end and has a first end and a second end extending above the sole. The first end and the second end of the rear strap are respectively connected to an inside rear buckle and an outside rear buckle. A self-adjusting harness comprised of a single strap is anchored in the toe end. The single strap includes an inside end and an outside end each extending above the sole. The inside end of the single strap is circuited through the front buckle and the inside rear buckle while the outside end of the single strap is circuited through the front buckle and the outside rear buckle. The inside end and the outside end are engaged to form a closure over-the-instep of the foot. Finally, an independent adjustable heel strap is attached to the outside rear buckle and the inside rear buckle. Subsequent movements of the foot result in continuous adjustments in the tension of the single strap for regulating and equalizing the tension in the harness.

The invention relates to a peristaltic hose pump comprising a roller wheel (1), which can rotate about a roller wheel axis D and which has rollers (2) that are mounted on the roller wheel (1). The rollers (2) roll away on a circular path having a radius R1 with regard to the roller wheel rotation axis D. The peristaltic hose pump also comprises a pressure arched element (3) with a supporting surface (4), whereby the supporting surface (4) extends along a circular path having a radius R2 around the rotation axis D of the roller wheel (1). In addition, a flexible hose (19) can be placed between the supporting surface (4) and the rollers (2) of the roller wheel (1). According to the invention, the supporting surface (4) is formed out of an elastically deformable synthetic material, and the pressure arched element (3) is pre-shaped with the provision that the extension of the supporting surface (4), when the pressure arched element (3) is not under tension, essentially corresponds to the extension of the supporting surface (4) when under tension.

An implant for treating rectocele and/or prolapsus of the vaginal fornix is thin and flexible and includes a support body from which there extend at least two upper suspension stabilizers disposed on either side of a sagittal plane and two lower suspension stabilizers disposed on either side of the sagittal plane. The implant may be constructed from a suitable biocompatible material such as a woven synthetic material, or a knitted material of polypropylene or polyester fibers.

PCT No. PCT/DE98/02820 Sec. 371 Date May 21, 1999 Sec. 102(e) Date May 21, 1999 PCT Filed Sep. 22, 1998 PCT Pub. No. WO99/15518 PCT Pub. Date Apr. 1, 1999What is described here are photochromic naphthopyrane dyes with different substituents whose properties can be set by controlled selection of the substituents. In this manner it is possible to take an influence on the migration characteristics, the absorption characteristics and the brightening rate and kinetics. The inventive compounds display good darkening and brightening properties at a very good service life. The invention excels itself by the fact that a method is made available which is substantially improved over prior art, in addition to the surprising influence on specific properties of the inventive compounds. The described compounds are suitable for application in synthetic materials of any kind. A photochromic object is also the subject matter of the invention, which comprises one or several photochromic naphthopyrane dyes as well as at least one polymer material, with the photochromic object being producible by mass-dyeing or superficial dyeing.

The invention relates to a gastight, pressure-resistant storage and/or transport container (10) for low-molecular, reactive filling media, especially for hydrogen, oxygen, air, methane and/or methanol. Said container has a high filling pressure and is embodied in an essentially rotationally symmetric manner, having at least one connector cap (15) with a sealing device (16). The wall (12) of the container is essentially comprised of a thermoplastic synthetic material having at least one diffusion barrier (18, 19) system and/or a diffusion barrier and anti-corrosion system (18, 19). In order to offer protection for hydrogen and oxygen containers, the diffusion barrier system can be embodied in the form of at least one compact layer and/or can contain finely dispersed, distributed reactive nanoparticles (18) in the wall (12) of the container, in at least one composite film (28) and/or in at least one diffusion barrier layer (18).

This invention provides compositions and methods for producing a medical device coated with a matrix and an antibody which reacts with an endothelial cell antigen. The matrix coating the medical device may be composed of synthetic material, such as polyurethane, poly-L-lactic acid, cellulose ester or polyethylene glycol. In another embodiment, the matrix is composed of naturally occurring materials, such as collagen, fibrin, elastin, amorphous carbon. In a third embodiment, the matrix may be composed of fullerenes. The fullerenes range from about C60 to about C100. The medical device may be a stent or a synthetic graft. The antibodies promote adherence of endothelial cells on the medical device. The antibodies may be mixed with the matrix or covalently tethered through a linker molecule to the matrix. Following adherence to the medical device, the endothelial cells differentiate and proliferate on the medical device. The antibodies may be different types of monoclonal antibodies. Methods of preparing such composition and methods of treating a mammal with atherosclerosis or other types of vessel obstruction are disclosed. By facilitating adherence of endothelial cells to the surface of the medical device, the methods and compositions of this invention will decrease the incidence of restenosis as well as other thromboembolic complications resulting from implantation of medical devices.

Described herein are stabilization devices, systems and methods to aid in posterior lumbar interbody fusion (PLIF) surgeries. The stabilization devices (“devices”) described herein are typically self-expanding devices that may be implanted into an intervertebral disc and packed with a bone graft or biologic or synthetic material to promote anchoring of the stabilization device and fusion of the vertebrae adjacent to the intervertebral disc.

A leading edge structure for an aerodynamic surface includes a support structure made of fiber-reinforced synthetic material and a skin structure made of metal mounted on the support structure. The support structure includes an inner laminate, an outer laminate, and longitudinally extending tubes and channels arranged between the inner and outer laminates, as well as a synthetic foam filler material in the spaces between the tubes, channels, and laminates. The skin structure includes an outer skin having perforations, especially in the form of suction holes, an inner skin, and spacer members interconnected therebetween so as to form a substantially form-stable metal skin structure. Respective holes pass through the inner skin, the outer laminate, and the walls of the tubes and channels in order to communicate the suction hole perforations of the outer skin with the interior spaces within the tubes and channels. The skin structure is adhesively bonded to the support structure. In a method for making the leading edge structure, the prefabricated components of the support structure are laid up, molded and cured in a positive mold, the prefabricated components of the skin structure are formed and soldered together on a positive mold, and then the skin structure is adhesively bonded onto the support structure.

The present invention relates to an apparatus and a method for sealing a puncture in a tubular tissue structure or the wall of a body cavity. More specifically, the present invention is directed to an apparatus and method for sealing a puncture site in the wall of a tubular tissue structure, or in the wall of a body cavity with a bioabsorbable material such as submucosal tissue, another extracellular or matrix-derived tissue, or a synthetic material capable of remodeling endogenous connective tissue in vivo. The bioabsorbable material is inserted into the puncture site as a sheet on an introducer element used to access the lumen of a tubular tissue structure or used to access a body cavity.

A method for manufacturing coated panels of the type including at least a substrate and a top layer with a motif, the top layer being provided on the substrate, the method may involve at least two steps. A first step may involve providing a synthetic material layer on the substrate. And a second subsequent step, may involve providing a relief on the surface of the synthetic material layer. The relief may include a pattern of recesses and/or projections. the pattern may be at least partially determined by one or more prints.