461results about How to "Avoid scaring" patented technology

The invention relates to sutures and surgical staples useful in anastomoses. Various aspects of the invention include wound closure devices that use amphiphilic copolymer or parylene coatings to control the release rate of an agent, such as a drug or a biological material, polymerizing a solution containing monomers and the agent to form a coating, using multiple cycles of swelling a polymer with a solvent-agent solution to increase loading, microparticles carrying the agent, biodegradable surgical articles with amphiphilic copolymer coatings, and sutures or surgical staples the deliver a drug selected from the group consisting of triazolopyrimidine, paclitaxol, sirolimus, derivatives thereof, and analogs thereof to a wound site.

Biodegradable polymer-coated surgical meshes formed into pouches are described for use with cardiac rhythm management devices (CRMs) and other implantable medical devices. Such meshes are formed into a receptacle, e.g., a pouch or other covering, capable of encasing, surrounding and/or holding the cardiac rhythm management device or other implantable medical device for the purpose of securing it in position, inhibiting or reducing bacterial growth, providing pain relief and/or inhibiting scarring or fibrosis on or around the CRM or other implantable medical device. Preferred embodiments include surgical mesh pouches coated with one or more biodegradable polymers that can act as a stiffening agent by coating the filaments or fibers of the mesh to temporarily immobilize the contact points of those filaments or fibers and/or by increasing the stiffness of the mesh by at least 1.1 times its original stiffness. The pouches of the invention can also provide relief from various post-operative complications associated with their implantation, insertion or surgical use, and, optionally, include one or more drugs in the polymer matrix of the coating to provide prophylactic effects and/or alleviate side effects or complications associated with the surgery or implantation of the CRM or other implantable medical device.

Biodegradable polymer-coated surgical meshes formed into pouches are described for use with cardiac rhythm management devices (CRMs) and other implantable medical devices. Such meshes are formed into a receptacle, e.g., a pouch or other covering, capable of encasing, surrounding and/or holding the cardiac rhythm management device or other implantable medical device and preventing or retarding the formation of a biofilm.

A surgical technique wherein an indwelling shunt is placed in the eye of a patient having glaucoma. The shunt diverts aqueous humor from a deep scleral lake or directly from the anterior chamber to the suprachoroidal space from which it is removed by blood flowing in the choroidal and uveal tissues. This decreases the intra-ocular pressure. The indwelling shunt maintains the area of exposure of aqueous humor with the uvea by physically preventing scarring of the surrounding tissues. The method utilizes the 25 mm Hg driving force of the protein colloidal osmotic pressure of the blood to maximize the flow.

A method and apparatus for thermal treatment of tissue by irradiating the skin with electromagnetic energy is disclosed. Sources of electromagnetic energy include radio frequency (RF) generators, lasers, and flashlamps. The apparatus includes either a positional sensor or a dosage evaluation sensor, or both types of sensors. These sensors provide feedback to a controller. The controller may control the electromagnetic source parameters, the electromagnetic source activation, and/or the sensor measurement parameters. An additional scanning delivery unit may be operably coupled to the controller or to the sensors to provide a controlled distribution of electromagnetic energy to the target region of the skin. The use of positional measurement sensors and dosage evaluation sensors permits the controller to automatically determine the proper electromagnetic source parameters including, for example, pulse timing and pulse frequency.

The present invention is preparation process of collagen-based surface wound repairing membrane possessing tissue induction function, and features that the collagen-based surface wound repairing membrane modified physically and chemically has introduced gelatin-base slow releasing microsphere containing cell growth factor, pores of 20-200 micron size, pore rate not smaller than 80 %, tensile strength not smaller than 1 MPa, pH 5.0-6.0, and excellent degradation and biocompatibility. It has the functions of absorbing wound diffusate, induce the adhesion, proliferation and differentiation of autocell, induce the growth of blood vessel, release cell growth factor to the wound for long time, speed wound healing and avoid scar. The present invention is used for injury, burns, scalds, skin ulcer, etc.

A method of treating a wound in a subject includes administering directly to the wound or an area proximate the wound an amount of SDF-I effective to promote healing of the wound of the subject.

A method of modulating topical inflammatory response is disclosed. The method generally includes the selective removal of certain proteins, e.g., one or more cytokines such as interleukin-1β (IL-1β) and/or interleukin-6 (IL-6), from a topical site without substantially altering the local concentrations of other proteins that may be present at or near the topical site. Other proteins that are present at or near the topical site can include serum albumin, fibrinogen, and immunoglobin G (IgG). Hydrogel compositions that can be used to practice the methods of the invention are provided. The invention further provides methods of preparing such hydrogel compositions.

The invention discloses a panel cutting device and a method of conveying a panel in the same capable of preventing the substrate from falling or fracturing during the weight shifting of the substrate. The substrate cutting device comprises a first conveying part and a second conveying part, which are disposed at an interval along the conveying direction, namely the first direction, and are provided with a band part coiled on a plurality of rollers during the carrying of the substrate; an engraving unit disposed on the interval; a jumping roller unit, which is disposed on the upstream side second conveying part and the downstream side second conveying part, and is provided with at least a first roller and a second roller. The first roller is disposed on an outer side of the second conveying part, and the second roller is disposed on an inner side of the second conveying part. The first roller and the second roller can move in opposite directions in the second direction crossed with the first direction. The invention also provides a method of conveying panel in the same.

A downhole camera assembly (100) comprises a camera having a side-view viewport (82) that can be conveyed and manipulated within a wellbore on flexible cable. Light emitted from a light source is diffused and directed by a transparent or translucent material (61) in a substantially 360-degree pattern within a wellbore, thereby illuminating portion(s) of the wellbore positioned laterally to the camera assembly in a field of view of the viewport. The viewport may be selectively rotated 360 degrees by a motor assembly (40) positioned within the camera assembly which can be controlled from the earth's surface.

The invention discloses an aggressive aided driving curve obstacle avoidance lane changing path planning method. A required aided driving system comprises an environment sensing unit, a self-vehicle sensor unit, a CAN, an ECU, a steer-by-wire unit, a brake-by-wire unit and a speed control unit. A curve obstacle avoidance decision-making method comprises the steps that (1) the distance between twovehicles is smaller than the safety distance; (2) the front vehicle speed within the detection range is smaller than the lane speed limit multiplied by a certain proportion, and (3) the front vehiclebrakes abnormally, and changes lanes if one condition is met and no vehicle exists in the left lane of the front vehicle. According to the path planning method, a lane changing path is planned througha quintic polynomial, and then an optimal path is obtained according to a target function considering the longitudinal distance, the lateral acceleration, the yaw velocity and the side slip angle. According to the invention, the unnecessary emergency braking is avoided, the overall safety and the passing efficiency of the traffic are improved, and the pursuit of time saving of a sharp driving style driver is also met; and the lane changing path is planned by taking the stability and the lane changing distance as the evaluation indexes, so that the lane changing stability is guaranteed.

The invention discloses a method for continuously polymerizing nylon from a bi-component monomer serving as a raw material. The method comprises the following steps of: reacting and rectifying a nylon salt aqueous solution serving as a raw material in a pre-condensing tower in which a liquid phase is a continuous phase, a gas phase is a dispersed phase and falling liquid and rising bubbles keep flat push flow respectively under a low pressure to generate a prepolymer of which the polymerization degree 5-50 (preferably 20-40) and a terminal carboxyl group, a terminal amino group and the like are of equal molar amounts; and pre-heating the pre-polymer to generate a polymer of which the polymerization degree reaches process indexes in the pre-condensing tower. In the pre-condensing tower, a film falling or strip falling method is adopted, so that evaporation of condensed water is accelerated, the reaction temperature is lowered, reaction time is shortened, and gel is reduced; and a kettle wall is coated with a falling liquid film, so that kettle wall scars are avoided. The method has the advantages of short flow, large mono-line scale, saving in investment, low running cost, good product quality, long continuous running period, environment friendliness and suitability for continually polymerizing nylon 66, nylon 56 and other nylon made of bi-component monomers serving as raw materials.

This invention discloses oxidation reactor and method for preparing TiO2 by chlorination. The reactor comprises a combustion chamber, a shell of reacting zone, and a shell of developing zone. A TiCl4 inflow pipe is inserted vertically into the shell of the reacting zone, and is bent 90 degrees to form an L-shaped pipe towards the shell of the developing zone. A nozzle is fixed on the end of the L-shaped pipe, and on the same axis of the shells. A cool air entrance is at the connecting part of the shells. The right side of the shell of the developing zone is connected with the flow exit. The tangential and radial TiCl4 cyclone jets can be formed at the axes to mix TiCl4 gas and hot oxygen and react fast and uniformly. The mixing effect can be ameliorated by controlling the relative momentum of the TiCl4 jet. Cool air is applied to blow the nozzle to prevent blockage. The cool air introduced from the connecting part of the shells is applied to control the rection, reduce and scar formation on the reactor wall, and adjust the particle size distribution.

A combined wall treatment and bed, that is, a unit which resembles a decorative wall treatment, such as a painting, when in the upright and stowed position, but which can be lowered to provide a comfortable bed. When the unit is in the upright and stowed position its appearance is that of a thin (4½″) wall treatment, the thickness of a large painting, and thus consumes practically no living space. A fixed component can be attached to any standard wall construction without modification; it supports the lower edge of a movable portion and defines an axis about which the movable portion pivots to provide a functional and comfortable bed. The fixed component of the unit comprises a lower horizontal element to conceal the support and pivot mechanism, and forms the lower component of a frame visually surrounding the center of the wall treatment; the corresponding upper element conceals a set of legs supporting the upper edge of the movable portion of the unit when in the lowered position. A planar center member between the upper and lower frame elements supports and conceals the sleep system, and can be decorated with a façade of wood, cloth, or painted treatments to taste. The legs, which are concealed in the upper frame element, automatically articulate out to support the foot of the bed as it reaches the horizontal position. A thin yet very comfortable bed is provided by a sleep system that utilizes a comfortable hybrid air and foam mattress. An electric air handling system automatically inflates the hybrid air and foam mattress as the bed begins its descent and deflates the mattress as the bed is pivoted to the vertical position, and preferably allows for pressure adjustment after the bed is down. The sleep system also uses thin flexible cambered slats, which both take up very little space and provide maximum comfort.

The invention discloses a gas phase combustion reactor for preparing nanometer particles and the industrial application method. By changing the nozzle structure of the reactor in the prior art, the reactor enables the reaction material and the combustion gas to be evenly mixed to form ultrahigh speed jet flame, overcomes the defects of uneven temperature field and concentration field and liability to scab of nozzle, and enables continuous production for long period. The gas phase combustion reactor can be used for industrial and continuous preparation of various oxide nanometer particles such as nanometer titanium dioxide, silicon dioxide, aluminum oxide, and antimony doped tin dioxide.

A light delivery system to provide light treatment to a patient includes an elongated catheter having a light emitter that transmits light towards a target site within a patient. The catheter is sized and configured to pass through anatomical body structures to reduce or eliminate trauma associated with the delivery procedure. A visualization system of the catheter can assist a user before, during, and/or after performing light therapy. The visualization system includes sensors that provide real-time imaging or feedback.

An orally ingestible composition for the treatment of external personal odors can include about 35% w/w to about 50% w/w of the essential oil of lavender, about 1% w/w to about 10% w/w of the essential oil of rosemary, about 1% w/w to about 10% w/w of the essential oil of sage, and sufficient carrier medium to make up to 100% by weight.

The invention belongs to the technical field of medical instruments and provides an auxiliary relaxation instrument used in surgical suturing. The auxiliary relaxation instrument is of a rounded cuboid and includes a relaxation layer (1), an adsorbed layer (2), stitching holes (3) and observing holes (4), wherein the relaxation layer (1) is arranged on the adsorbed layer (2), and the relaxation layer (1) and the adsorbed layer (2) are closely combined; the stitching holes (3) and the observing holes (4) penetrate through the relaxation layer (1) and the adsorbed layer (2); the stitching holes (3) are arranged in two rows and are symmetrical in a left-right mode. According to the auxiliary relaxation instrument, in the fully intradermal suturing process of a wound, the skin relaxation suture technology is simplified, and meanwhile moderate pressure is exerted on the wound to reduce bleeding. Therefore, it is guaranteed that the distances between stitches are equal in the manual interrupted suturing process, scar hypertrophy and suture cutting effects due to overlarge skin tension are prevented, and finally the skin relaxation instrument achieves the purposes of accelerating wound closure, bringing convenience to wound dressing change and wound observation and preventing the scar hypertrophy.

A new MANUFACTURING PROCESS FOR AN ADHERENT SILICONE HEALING TAPE/PAD/DRESSING OF SPECIFIC SHAPES, for application in the medical area aiming to provide greater results in the healing of keloid scars as a fibroproliferative disorder, since the following specific properties make silicone useful for dressings: safe, low thermal conductivity, low chemical reactivity, low toxicity and rare adverse reactions, as the silicone cannot be absorbed into the body, repels the water and creates a watertight seal, it does not support microbial growth, has high gas permeability, and is adherent to dry skin.

A drywall sanding implement having a shaft, a yoke attached to the shaft, a block pivotably mounted to the yoke, a pair of spindles mounted to the block, and a sanding block removably mounted on each spindle.

The invention belongs to the technical field of mineral machining and particularly relates to a novel method for producing iron concentrates through complex refractory iron ore. The novel method includes the steps that firstly, the complex refractory iron ore is subjected to ore grinding classifying treatment; classified overflow products are subjected to magnetic separation preconcentration, and powdery preconcentrated concentrates are obtained; the powdery preconcentrated concentrates are fed into a suspension roaster to obtain suspension roasted ore; water is added to the suspension roasted ore, and ore pulp is manufactured, preconcentration is conducted, and obtained magnetic concentrates serve as rough concentrates; and an electromagnetic separator is used for conducting concentration on the rough concentrates, the obtained concentrated concentrates are filtered, moisture is removed, concentrate products with the iron grade ranging from 60% to 68% are obtained, the recovery rate of iron ranges from 80%-90%, the concentrate products with the iron grade ranging from 60%-68% are subjected to reverse floatation desilicication, and concentrate products with the iron grade ranging from 61% to 69% are further obtained. The iron concentrate products with the iron grade larger than 60% are obtained, the recovery rate of iron is larger than 80%, product indexes are stable, the economical efficiency is good, and complex refractory iron ore resources can be efficiently utilized.

The invention discloses a process and a system for purifying titanium tetrachloride by removing vanadium. The process comprises the following steps of: conveying coarse titanium tetrachloride to a circulating tank via a coarse titanium tetrachloride storage tank, conveying the coarse titanium tetrachloride to a pipeline of a heat exchanger through a feeding pump, heating coarse titanium tetrachloride materials, controlling pressure of a material outlet of the heat exchanger, feeding the heated coarse titanium tetrachloride materials to enter a flash tank via the heat exchanger outlet, and feeding into a vanadium-removing reaction tower after vaporizing in the flash tank; conveying mineral oil to the vanadium-removing reaction tower, contacting, exchanging heat and controlling temperature and pressure in the vanadium-removing reaction tower to carry out a reduction reaction; generating titanium tetrachloride slurry at a tower bottom, discharging titanium tetrachloride gas from a tower top and entering a cooling kettle to obtain titanium tetrachloride. The system is composed of a coarse titanium tetrachloride storage tank, a circulating tank, a feeding pump, a heat exchanger, a flash tank, a vanadium-removing reaction tower, a cooling kettle and a chlorinating and dust-collecting part. The process and system have the advantages that the scabbing is effectively prevented, the heat exchange efficiency is enhanced, the service life is prolonged and the vanadium is effectively removed, the vanadium-removing process is safe and reliable and the working condition is improved.