45 results about "Plaque removal" patented technology

Embolic protection and plaque removal apparatus and methods are provided wherein an aspiration device aspirates, filters and reperfuses blood using a closed fluid circuit having a bi-directional working lumen. The plaque removal device includes a plurality of self-expanding cutting elements that form a cage that self-centers within the blood vessel to reduce the risk of trauma to the vessel lining.

A computer-implemented system and method of intra-oral analysis for measuring plaque removal is disclosed. The system includes hardware for real-time image acquisition and software to store the acquired images on a patient-by-patient basis. The system implements algorithms to segment teeth of interest from surrounding gum, and uses a real-time image-based morphing procedure to automatically overlay a grid onto each segmented tooth. Pattern recognition methods are used to classify plaque from surrounding gum and enamel, while ignoring glare effects due to the reflection of camera light and ambient light from enamel regions. The system integrates these components into a single software suite with an easy-to-use graphical user interface (GUI) that allows users to do an end-to-end run of a patient record, including tooth segmentation of all teeth, grid morphing of each segmented tooth, and plaque classification of each tooth image.

Toothpaste and other dentifrices formulated to include substantially spherical cleaning particles for enhanced plaque-removal capability. The cleaning particles are relatively large, having a diameter in a range from about 10 microns to about 200 microns, and are substantially round-edge and nonjagged so as to be far less abrasive compared to conventional abrasive particles, which tend to have a more jagged profile. Preferred cleaning particles include hollow glass spheres, which not only provide enhanced plaque-removal properties but which yield dental compositions having greatly reduced density. Air and other gases may optionally be entrained into the inventive dental compositions, either during manufacture or upon dispensing the dental compositions onto a toothbrush.

Systems, devices, and methods for removing plaque from a patient's vasculature are disclosed. In one example, a medical article includes a catheter body and a dissection tip. The dissection tip can move between at least a first position and a second position and can be biased to expand radially from a longitudinal axis of the medical article when the dissection tip is moved from the first position to the second position. In one example, a dissection member includes a dissection tip, a receiving space, and a severing element, such as, for example a thrombus-breaking element. The dissection tip can radially adjust to circumferentially maneuver between a core of plaque or a blood clot and a patient's vasculature. The receiving space can receive the plaque or clot that passes within the dissection tip. The severing element can at least partially sever or break apart the plaque or clot.

A method of tooth treatment includes sensing a surface condition of tooth or gum and controlling ejection of a fluid jet against the tooth based on the sensed condition. The fluid may be a liquid and may be carried in a self-contained reservoir in a handle of a fluid ejection device. The liquid can be a cleansing solution and may contain cleaning particles. The ejection can be controlled to clean teeth at high pressure and to reduce pressure applied to gum, for example, to clean plaque. In some embodiments, the method may be used to remove soft tooth. The method may further include automatically scanning the fluid jet relative to a handle of an injection device. In an embodiment, the fluid is ejected by means of a fluid ejector comprising a stationary magnet assembly providing a magnetic field and a coil assembly, slidably disposed with respect to the magnet assembly, the coil assembly driving ejection of the fluid jet. Sensing the surface condition can include measuring a response of tissue to a mechanical perturbation and may include sensing an acoustic signal reflected from tissue. The mechanical perturbation can include applied force and the measured response can include deformation of the tissue. The method may further include mechanically disturbing the tissue with the fluid jet. A tooth treatment device includes a fluid ejector that ejects fluid against teeth and a servo controller controlling pressure of ejected fluid in response to a sensed surface condition. The fluid jet can have a diameter of less than 500 microns, a peak relative pressure of at least 1 kilopascal and velocity of at least 1 meter per second.

A method and apparatus for removing plaque, fatty deposits, and other occlusions from blood vessels using ultrasonic energy. The method and apparatus has particular application in removing plaque from the carotid artery in a non-thermal manner. The apparatus is designed to have as small a cross-sectional profile as possible, therefore allowing the apparatus to be used in a minimally-invasive manner. As a result, the apparatus can be used in both surgical and outpatient treatment with minimal post-operative complications and minimal damage to areas other than the area of treatment. An ultrasonic probe may include aspiration channels on its outer surface. An aspiration sheath may surround the ultrasonic probe, such that the location of an aspiration port may be varied axially relative to the ultrasonic tip.

A method for treating arteriosclerotic lesions is provided wherein the method is characterized by administering a chemical compound to the patient, the compound being a porphyrin complexed with a radioactive metal. Cells which exhibit an affinity for the porphyrin element indicate sites of plaque buildup. The radioactive metal within the compound is cytotoxic to cells in and surrounding the plaque and may allow tomographic scanning of the plaque as well. The complexed compound can be introduced to the patient a desired number of times to provide the necessary radiation treatment and ongoing monitoring of plaque removal.

Methods and devices for effectively treating aphthous ulcers are disclosed. The invention employs the removal of the plaque layer of the aphthous ulcer to accelerate healing. Before the plaque layer is removed, the ulcer may be initially anesthetized, by rubbing with an appropriate material and / or compound. Subsequently, an appropriate medicament may be applied to accelerate healing, if desired. The invention teaches the structure and use of applicator / dispenser system employing easily crushable ampoules, containing an aesthetic, and other appropriate medicaments. The invention further teaches the application of slippery surfaces to teeth, teeth appliances, and oral cavity surfaces to inhibit the generation of aphthous ulcers, and to speed their healing. The application, in the form a gel or film, may include a sustained release medicament. Finally, the invention contemplates the use of replaceable and disposable tips for power toothbrushes and the like to aid the treatment of the aphthous ulcers, and the use of dendrimer technology to provide sustained and concentrated local drug action.

The invention discloses a multi-stage inching circulating plaque removal device for department of cardiology. The plaque removal device comprises a sleeve, a stator, a coil, a rotor shaft, a first electromagnet, a storage battery, a connecting plate, a first spring, a second electromagnet, a guide plate, a second spring, a blade, a guide net, a third spring, a third electromagnet and a fourth electromagnet. The multi-stage inching circulating plaque removal device for the department of cardiology is skillful in structure, strong in function and simple to operate, and the plaque removal device is capable of saving cost and reducing expense; with the application of the device, the diameter of the blade can be regulated during moving, so as to thoroughly crush calcified plaques in blood vessels of a patient, and the device, which cannot block coronary blood flow in the process of crushing the calcified plaques, can take an effect on protecting the patient; and meanwhile, the device can pump the crushed calcified plaques in the blood vessels of the patient out of the body of the patient, so that a surgical plaque removal effect and safety are greatly improved.

An object is to provide an electric toothbrush superior in plaque removal, producible at low costs, and utilized without damaging gum even by a patient with gingivitis. In the electric toothbrush (10) making brushing possible by linearly moving a tufted portion (31), the product of the distance (mm) of movement of the tufted portion (31) and the frequency (times) of back-and-forth motion per minute is set in the range of 3000-9000. Further, the distance ((x) mm) of movement of the tufted portion (32) and the frequency ((y) times) of back-and-forth motion per minute are set in a range which satisfies the following formula: y = ax + b, where a = - 3000, 10000 | b | 12500, x > 0.

An interdental brush has a handle with a helix style shape, as well as sections of long and short bristles to maximize plaque removal. The handle has a first end, a second end and a length between the first and second ends. The handle defines a longitudinal axis extending through the handle along the length. A brush extends from the handle and includes a stem projecting along the longitudinal axis and a set of bristles extending laterally outwardly from the stem. Each of the bristles has a bristle length from the stem to a bristle tip, the bristle tips collectively defining a bristle profile. In one embodiment, the bristle profile alternates along the stem between valley sections of short bristle length and mountain sections of long bristle length. The handle includes a grip portion along the length, and the grip portion is shaped such that it is twisted about the longitudinal axis in the manner of a helix.

An apparatus, device and method are provided for executing a clot or plaque removal procedure. In one embodiment, a clot removal device may include a clot holding element for penetrating a target clot and stabilizing the clot in its position; a controllable distal filter that can be extended to cover the target clot; a distal filter, openable downstream from the clot, designed to substantially prevent flow through of clot elements, and further designed to drag the clot out of a vessel, for retrieving by the clot removal device.

A process for treating a surface (2) to clean or otherwise treat the surface (2) comprises a step of contacting the surface (2) with a particulate treating agent such that at least some of the particles (1) roll along at least a portion of the surface (2), wherein an angle of incidence of the particles (1) and the surface is between 0° and 60°. The particles (1) are dimensioned to effect a rolling movement along the surface (2). The treating agent is substantially non-aqueous. The particles (1) comprise a precipitate or agglomerate of an insoluble alkali metal carbonate. The process comprises a blasting operation or a manual application. The use of the process of the invention in dental applications such as teeth whitening and plaque removal, treating bone, and skin exfoliation, is also disclosed. Also disclosed is a treating agent which comprises a plurality of particles (1), the particles (1) being dimensioned to effect a rolling movement along a surface (2), wherein the treating agent is substantially non-aqueous.

An oral care composition is provided wherein the composition comprises an ionic liquid, wherein the ionic liquid comprises: a) a quaternary ammonium cation of the formula wherein R1, R2, R3 and R4 are each an organic moiety and may be the same or different, and at least one of R1, R2, R3 and R4 includes a hydroxyl; and b) an anion selected from the group consisting of salicylate, alkylsulfate, sulfate, acetate, halide, phosphate, alkyl phosphate and tosylate; wherein the oral care composition is a mouth rinse, toothpaste, toothpowder, oral bead or strip, fluid-encased dental strip, irrigation fluid, plaque removal liquid, dental floss, hard candy, soft candy, lozenge, chewing gum, or lollipop.

A kit for dental plaque removal comprises a longitudinally extending absorbent dental strip and a holder. The absorbent dental strip has a thickness “t” and a width “w.” T is sized to be receivable in edentulous areas and diastemas, and w is sized to clean the surface of a tooth without protruding past a gingival sulcus and damaging gingival tissue. The holder has a main shaft. A pair of laterally spaced prongs project from a first end of the main shaft. The prongs are configured to reversibly secure a length of the absorbent dental strip.

A process for treating a surface (2) to clean or otherwise treat the surface (2) comprises a step of contacting the surface (2) with a particulate treating agent such that at least some of the particles (1) roll along at least a portion of the surface (2), wherein an angle of incidence of the particles (1) and the surface is between 0° and 60 °. The particles (1) are dimensioned to effect a rolling movement along the surface (2). The treating agent is substantially non-aqueous. The particles (1) comprise a precipitate or agglomerate of an insoluble alkali metal carbonate. The process comprises a blasting operation or a manual application. The use of the process of the invention in dental applications such as teeth whitening and plaque removal, treating bone, and skin exfoliation, is also disclosed. Also disclosed is a treating agent which comprises a plurality of particles (1), the particles (1) being dimensioned to effect a rolling movement along a surface (2), wherein the treating agent is substantially non-aqueous.