90 results about "Gaps between teeth" patented technology

An allergen-barrier bedding cover made of polyurethane coated cover fabric, which is waterproof yet permeable to water vapor, reduces contamination of bedding, and blocks dust mites and other allergens, and can be washable. The outer face of cover fabric is non-allergic cotton, nano fiber, or Lyocell, and the inner face of cover fabric is coated with polyurethane. The closure is formed with a zipper, of which the back is coated with polyurethane in order to seal the needle holes of the seams sewing zipper tapes and teeth together, and the gap between teeth is less than 0.01 mm to prevent dust mites from passing through it, and the width of the zipper chain is less than 4 mm. A patch coated with polyurethane is attached inwardly at the end of the zipper, where the zipper is closed, to prevent dust mites from passing through the zipper slider. The needle holes of the seams not only between cover fabrics but also between cover fabrics and zipper tapes of the closure are sealed with seam sealing tapes. The allergen-barrier bedding cover prevents the cause of allergy and keeps the sleep environment clean and hygienic.

An internal gear pump which improves the mechanical efficiency and the life and reduces noises by eliminating non-uniformity of the gaps between teeth. In the internal gear pump wherein the tooth spaces of the outer gear and the tooth tips of the inner gear form an epicycloid and the tooth tips of the outer gear and the tooth spaces of the inner gear form a hypocycloid, these cycloids are formed by four circles that roll on the pitch circle of each gear such that the gap between teeth in a region where the outer and inner gears mesh most deeply with each other is substantially equal to the gap between teeth in a region where the depth of mesh between the outer and inner gears are the shallowest.

The invention belongs to the field of environmental protection, and relates to a waste processing device, in particular to a kitchen waste crushing and squeezing processor. In order to overcome the defect of the lack of special kitchen waste processing equipment in the prior art, the invention provides a kitchen waste crushing and squeezing processor. The kitchen waste crushing and squeezing processor comprises a crushing part and a squeezing and dewatering part, wherein the crushing part comprises a roll type crushing mechanism, the roll type crushing mechanism comprises a driving shaft and a driven shaft, gears are arranged on the driving shaft and the driven shaft respectively, each gear comprises a gear ring and a gasket, gear teeth are arranged on the gear ring, the cutting gap between tooth surfaces of adjacent gears is 0.5mm, and the cutting gap between tip-shaped tops of the gear teeth and the gaskets is 0.5mm. The kitchen waste crushing and squeezing processor integrates crushing, squeezing and dewatering, and can be used for efficiently processing kitchen waste.

An interdental brush includes a handle, an elongate bar mounted on a first end of the handle and having a surface provided with a plurality of bristles and a pointed shank mounted on a second end of the handle and having a surface provided with a plurality of serrated portions. Each of the bristles is provided with at least one intersection which divides each of the bristles to form a protrusion. The intersection of each of the bristles can expand a clearing extent during a reciprocal movement of the elongate bar to catch and carry away residuals left in a gap between a user's any two teeth exactly and completely.

A comb-tooth-shaped capacitor is a common structural type of a micro-actuator and a micro-sensor of MEMS devices. Gaps between teeth of the comb-tooth-shaped capacitor are only several micrometers, and a gap between a positive plate and a negative plate needs to be fine controlled. The invention provides a comb-tooth capacitor accurate assembly method based on a bi-stable state compliant mechanism. The comb-tooth capacitor accurate assembly method based on the bi-stable state compliant mechanism can improve fine control of the gap between the positive plate and the negative plate of the comb-tooth-shaped capacitor, so that a batch of MEMS devices with the same structure have the same and estimable capacitance, and uniformity of performance of the static MEMS devices at the time of lot manufacturing is improved.

The invention discloses a condulet external-gluing mechanism. The condulet external-gluing mechanism is characterized in that two sides of a baseboard are provided with linear guide rails, a linear guide rail connection supporting board is formed on the surfaces of the linear guide rails, a horizontal guide rod cylinder is fixedly connected with the baseboard through a guide rod cylinder fixing board, the horizontal guide rod cylinder is connected with a second guide rod cylinder connection board through a first guide rod cylinder connection board, the front portion of the second guide rod cylinder connection board is fixedly connected with a gluing board through an extension board, at least two vertical guide rod cylinders are symmetrically distributed on the bottom of the second guide rod cylinder connection board, and the bottoms of the vertical guide rod cylinders are fixed on the linear guide rod connection supporting board. The condulet external-gluing mechanism which adopts a dual-cylinder driving system realizes the space displacement of a whole support, the gluing plate having a jagged edge enables the glue carrying amount to be effectively controlled, the gaps between teeth can realize the condulet external-gluing, and the condulet external-gluing mechanism has the advantages of reasonable whole design, ingenious conception, stable working state, accurate positioning, convenient operation, simple whole mechanical structure, and very good practicality.

The present invention relates to a dental floss pick, which is mainly a rigid grip having two ends. A pointed end is formed on one end of the grip and is sheathed by a soft elastomer. Two support arms are formed by extending outwardly from the other end of the grip, and dental floss is mounted tightly between terminations of the support arms for cleaning between teeth. Given design of the grip and the pointed end, dental floss can be used for cleaning and since the pointed end of the dental floss pick has the soft elastomer, the pointed end can be deeply inserted in gap between teeth for improved cleaning with reduced risk of gum injury.

The invention is an extrusion concave mould of straight-tooth cylindrical gear, and its character: inlet diameter of the concave mould is greater than the diameter of divided circle of a molded gear and less than that of addendum circle of the molded gear; the shape and size of the gap between teeth at the end of the molding segment of the concave mould are consistent with those of the tooth form of planar projection of the molded gear; for arbitrary cross section in molding segment of the concave mould but point of tangency from the top arc of the tooth form to the side wall between teeth, the geometrical shapes and sizes of the rest parts between teeth are consistent with those of the corresponding parts at the end of the molding segment of the concave mould, and the centre angles opposite to the circumferential pitches are the same. It needs small extruding force, and the parts of tooth form are easy to fill up, the involutes of the concave mould is uneasy to wear and its service life is long.

An interdental brush (10) for cleaning gaps between teeth and / or dental implants includes a brush head (11, 19, 22) which has a longitudinal bristle carrier (13, 20) and a plurality of bristles (16, 23). The bristles (16, 23) extend away from the bristle carrier (13, 10) in a radially outward manner. To ease cleaning of the gaps between teeth and / or a dental implant, in particular to reduce the risk of injury when using an interdental brush (10), the brush head (11, 19, 22) of the interdental brush (10) is embodied as a single-component injection molded part.

The invention discloses a multifunctional tooth care device, which comprises an inner cylinder and a storage battery; a toothbrush device is arranged on the left side of the inner cylinder, and a toothbrush head is arranged on the toothbrush device; bristles are arranged at the bottom of the toothbrush head; A threaded hole is provided at the position, and the internal thread of the threaded hole is connected with a threaded column; the threaded column is provided with an ultraviolet lamp; the right side of the inner cylinder is provided with a dental floss device, and the dental floss device is provided with a dental floss holder. The present invention seals and preserves the toothbrush head and the dental floss holder through the structure provided with an inner tube and a sleeve, avoids dust contamination, reduces bacterial growth, and is clean and sanitary; Sterilization and disinfection make the bacteria in the bristles meet the safety requirements and ensure safe use; the invention realizes the automatic reciprocating movement of the dental floss through the motor-driven dental floss holder, and realizes the efficient cleaning of the gaps between the teeth, and has various functions. Clean and hygienic.

The present invention relates to an electromotion toothbrush, and more particularly to an electromotion toothbrush which easily converts rotational direction thereof by simple manipulation of a switching circuit and easily removes foreign substances in gaps between teeth. For the purpose, the present invention comprises: a grip which can accommodate a driving motor for generating rotational force, a power supply for supplying power to the driving motor and a decelerator connected to the driving motor for decelerating the rotational speed of the output shaft of the driving motor; a direction conversion switch provided between the power supply and the driving motor for easily converting the rotational direction of the driving motor into a positive or reverse direction; a rotating toothbrush bar consisting of a rotating rod installed to the decelerator and a removable bristle part which is positioned on the rotating rod and on which toothbrush bristles are planted; and a removable protective stand installed at one side of the top of the grip parallel to the rotating toothbrush bar. The bristle part has longer bristles on the upper part, the middle and the lower part thereof, than that provided to the other parts.

A device for cleaning oral cavity and a method for cleaning oral cavity capable of cleaning stains such as plaque, tartar, and the like even in a narrow portion such as a clearance between teeth, a clearance between implants, and the like. A cover includes a jetting orifice and a discharge orifice and covers a tooth by leaving a clearance between the tooth and the cover so that the clearance can hold water. A jetting unit is mounted in the jetting orifice and includes a flow path communicating with the clearance between the tooth and the cover. The jetting unit is configured to generate cavitation bubbles. The flow path includes a small diameter part and an enlarged part. A discharge unit discharges water in the clearance between the tooth and the cover from the discharge orifice.

The invention provides a laser toothbrush. A brush handle is internally provided with a laser device and a battery, wherein a laser device is mounted on an outer wall of the brush handle. Butt joint ends of the brush handle and a brush head are provided with connectors which are mutually matched; and an output end of the laser device is connected with an optical fiber output end in a bristle base plate through the brush handle and a brush head optical fiber connector. The optical fiber output end is connected with a plurality of optical fiber bristles planted into a bristle bundle or a plurality of lens cones which are embedded onto the bristle base plate. After the brush head and the brush handle are connected in an inserting manner, optical fibers in the brush head and the brush handle are mutually connected through the connectors. The wavelength of the laser device is 400nm-1000nm and the energy of laser beams is 0.5W-1.5W. The brush handle is internally provided with a motor; a transmission mechanism in the brush head is driven to rotate and / or vibrate through the connectors which are connected in the inserting manner, and the bristles move synchronously, so that the laser toothbrush is a laser electric toothbrush. When the toothbrush is used, laser reaches gaps between teeth and parts below gingiva lines in an oral cavity, so that bacteria in hidden parts of the oral cavity are effectively removed; and the laser toothbrush has the effect of lase treatment of dental department.

A dental floss apparatus for cleaning the gaps between adjacent teeth which is comprised of a pair of handles that are configured for engagement with the fingers with strands of flossing substrate extending therebetween. The flossing substrates are spaced from each other, running substantially parallel and extending within an opening formed between the ends of the handles, with tension maintained by the user through employment of the handles. A dissolvable substrate is positioned within this opening through an engagement with one or both of the handles or the flossing substrate, and upon contact with the surface of the teeth, dissolves, and deposits a residue on the surface of the teeth and the surrounding area of the mouth. The dissolvable substrate may be formed of two substrate pieces with a central gap between them defining a means for targeting insertion of the substrate between adjacent teeth and may be colorized or fluorescent, and have an additive material such as mouthwash, breath freshener, cooling agent, or flavor.

The present invention provides a preparation for attaching to teeth or tooth peripheries, which comprises a malleable oral composition and an active ingredient for intra-oral delivery. Further, the present invention provides a preparation for attaching to teeth or tooth peripheries, which comprises an oral composition in a hardening ointment-phase and an active ingredient for intra-oral delivery. The preparation of the present invention may give high adhesive force to the desired site in spite of gaps between teeth or curves of teeth. The preparation of the present invention having high adhesive force increases the time of adhesion to a target site in the oral cavity, and thus may be advantageous in achieving an intended effect.

An electric toothbrush with water filling function features that its cylindrical brush with slightly conic front end is driven by motor to rotate for cleaning the surface of teeth and the gaps between teeth while the water is filled from water bag into brush via the water-filling hole under the action of pressure for flushing the dirt. Its advantages are high cleaning effect and no damage to gingiva.

The invention discloses a vertical high concentration pulp grinder, comprising a casing, where the middle part in the casing is equipped with main shaft, the bottom end of the main shaft is equipped with big belt pulley, the big belt pulley is connected with the output shaft of an electric machine through belt and small belt pulley, the axis of the output shaft of the electric machine is in parallel with that of the main shaft, the top end of the main shaft is connected with conical rotor core, the conical rotor core is jacketed with rotor sleeve, the outer wall of the rotor sleeve is equipped with rotating teeth, the casing is connected with conical stator, the conical stator is internally equipped with fixed teeth ring, the inner wall of the fixed gear ring is equipped with fixed teeth, the top end of the conical rotor core is equipped with feed rotor, the outer edge of top end of the casing is equipped with a gap regulator for regulating the gaps between teeth end surfaces on the fixed teeth ring and the rotor sleeve. And the invention completes feeding on top and discharging at bottom in the vertical structure, implementing high concentration coarse pulp grinding, having good operating stability, reducing energy consumption, convenient to install and maintain and having low noise.

The invention discloses traditional Chinese medicine prescription low-alcohol-degree medicated wine for treating loose teeth and black scale in a gap between teeth and a preparation method thereof. The traditional Chinese medicine prescription low-alcohol-degree medicated wine is prepared from the following components in parts by weight: 20 to 23 parts of rhizoma polygonati, 50 to 60 parts of honey, 20 to 23 parts of herba epimedii, 18 to 20 parts of Chinese gall, 13 to 15 parts of radix polygoni multiflori, 10 to 12 parts of white poria cocos, 10 to 12 parts of white dragon bone, 10 to 12 parts of rhizoma nardostachyos, 10 to 12 parts of herba asari, 18 to 20 parts of rhizoma chuanxiong, 18 to 20 parts of liquorice root, 10 to 12 parts of herba houttuyniae, 1000 to 1200 parts of rice wine, 0.2 to 0.23 part of folium artemisiae argyi essential oil, 30 to 35 parts of propolis, 30 to 35 parts of lemon juice, 2.3 to 2.5 parts of cellulase, 0.12 to 0.15 part of sodium bicarbonate, 0.5 to 0.6 part of casein and 30 to 35 parts of aloe gel. The traditional Chinese medicine prescription low-alcohol-degree medicated wine for treating the loose teeth and the black scale in the gap between the teeth, disclosed by the invention, has the advantages of light mouthfeel, relatively low alcohol degree, uniform texture, clear color and luster and abundant nutrients.

The invention belongs to the field of environmental protection, and relates to a waste processing device, in particular to a kitchen waste crushing and squeezing processor. In order to overcome the defect of the lack of special kitchen waste processing equipment in the prior art, the invention provides a kitchen waste crushing and squeezing processor. The kitchen waste crushing and squeezing processor comprises a crushing part and a squeezing and dewatering part, wherein the crushing part comprises a roll type crushing mechanism, the roll type crushing mechanism comprises a driving shaft and a driven shaft, gears are arranged on the driving shaft and the driven shaft respectively, each gear comprises a gear ring and a gasket, gear teeth are arranged on the gear ring, the cutting gap between tooth surfaces of adjacent gears is 0.5mm, and the cutting gap between tip-shaped tops of the gear teeth and the gaskets is 0.5mm. The kitchen waste crushing and squeezing processor integrates crushing, squeezing and dewatering, and can be used for efficiently processing kitchen waste.

The invention relates to a household tooth flushing machine which comprises a lithium battery for powering the machine, a mini water pump connected with the lithium battery, a purifed water bottle, a liquid toothpaste bottle and a toothbrush body mounted on the other side of the mini water pump through a water hose. The purified water bottle and the liquid toothpaste bottle are mounted on one side of the mini water pump through water pipes, the toothbrush body is movably connected with the water hose, and the mini water pump is further connected with a control device. By the household tooth flushing machine, the problem that interception in an oral cavity cannot be cleaned completely, the problem that strange teeth cannot be brushed well, such as, things stuffed in small gaps between teeth cannot be cleaned better and garbage in tooth cavities are even impossible to clean, the problem that rotten teeth cannot be brushed well and embedded teeth are even harder to brush well, the problem that damage is caused to gingiva while bleeding is accompanied and the problem that a user feels uncomfortable when the tongue is brushed can be solved.

The invention relates to a temporary tooth prefabricating method. The method comprises the steps that S1, a doctor obtains three-dimensional image data of the oral cavity of a patient through intraoral scanning; S2, the doctor compresses data obtained by intraoral scanning and sends the compressed data to a manufacturer; S3, the manufacturer prints a virtual oral cavity model according to the intraoral scanning data; S4, temporary teeth are designed and manufactured according to the occlusion relation between the upper teeth and the lower teeth and the adjacent gingival form; S5, the temporaryteeth are worn in the virtual oral cavity model; S6, the temporary teeth are grinded and trimmed according to the gaps between the temporary teeth and the adjacent teeth, the occlusion relation between the upper teeth and the lower teeth and the gingival state; and S7, the adjusted temporary teeth are sent to a hospital. According to the method, by means of intraoral scanning and data transmission, time is saved, patient experience is optimized, and infection is not likely to happen; and meanwhile, the temporary teeth are subjected to simulation test, so that the patient wears more comfortably, the adaptability is higher, the step of debugging in the mouth of the patient for many times is avoided, and the preparation efficiency of the temporary teeth is improved.

The invention discloses a floss pick which comprises a floss part (1), a handhold part (2) and a toothpick part (3) which are sequentially integrally connected, wherein the floss part (1) is distributed at the front end of the handhold part (2), and the toothpick part (3) is distributed at the rear end of the handhold part (2); a U-shaped groove (11) is formed in the lower end of the floss part (1), and a floss (4) is mounted at an opening of the U-shaped groove (11) in a matched manner; a tooth gap brush (31) integrally connected with the toothpick part (3) is arranged at the tail end of thetoothpick part (3). With the adoption of the structure, the floss can be used for clearing positions, where a toothbrush cannot brush, in teeth, the tooth gap brush can be used for cleaning residues left in gaps between teeth, and the floss pick is simple to use and comprehensive in cleaning.

The invention discloses a detachable finger toothbrush and a manufacturing method thereof. The finger toothbrush comprises a finger guard body and brush bristle, wherein the brush bristle is detachably arranged on the finger guard body and is made of loofah sponge. The manufacturing method comprises the steps as follows: the finger guard body and a finger guard ring for pressing the brush bristle onto the finger guard body are formed by solidifying silica gel or a synthetic resin material mixed with water by using a mold; the brush bristle is formed by sterilizing the loofah sponge and then flattening and molding the same; and the flattened loofah sponge is cut and the cut loofah sponge is rolled into an arc form, is sleeved on a finger guard bracket and is fixed by using the finger guard ring. The natural net structure becomes soft when encountering water, dirt is easily removed and dead angles at gaps between teeth and the inner sides of the teeth and the like are easily cleaned while good friction force is ensured, and dental plaques are removed, so that the tooth cleaning effect is better, the detachable finger toothbrush also plays a role in massaging oral gum when an oral cavity is cleaned; the brush bristle is comprehensive in cleaning; and the detachable finger toothbrush is low in cost and free of pollution to environment.

The invention discloses a portable toothpick. The portable toothpick comprises a toothpick body (3) which is sleeved with a spring (2). Protective ends are arranged on the upper portion and the lower portion of the toothpick body (3), and an ejecting block (4) is arranged in the middle of the spring (2). The portable toothpick is small in size and convenient to carry. The tail end of the spring has a guiding effect, and a metal needle is prevented from needling gingival. The portable toothpick is convenient to use, and peculiar matter in gaps between teeth is removed through pressing and poking. Sterilization is convenient, and the portable toothpick is soaked in boiled water before use so that sterilization can be achieved.

A dental floss apparatus for cleaning the gaps between adjacent teeth which is comprised of a pair of handles which are configured for engagement with the fingers and having one or a plurality of strands of flossing substrate extending therebetween. The flossing substrate extends within an opening formed between the ends of the two handles, during tensioned employment of the handles by a user. A dissolvable component may be positioned within the opening through an engagement with one or both of the handles or the flossing substrate. The dissolvable component dissolves to a solution during use to deposit a residue on the surface of the teeth. The solution from the dissolving component may be colorized or fluorescent, and have an additive material such as mouthwash, breath freshener, cooling agent, or flavor.

A coupler for transferring heavy load features use of internal and external splines. One of said two splines is a straight spline and another is a small-angle spiral spline. They have less interference fit between them for eliminating the gap between teeth.

A dental implant surgical guide device and method for guiding a surgical bur to a center location adjacent to at least one tooth during placement of an implant are presented. The dental implant surgical guide device may include a triangular body portion that may be inserted in a gap between two teeth, and a channel portion formed through the center of the body portion to allow the surgical bur to pass through the channel portion without contacting the body portion. Accordingly, a drill hole, and thus the implant, may be placed at the optimal, center location between the two teeth adjacent to the gap, and a distance between the two teeth may be accurately determined.

The invention discloses a curved tooth brush structure, which comprises the components as following: a curved brush head which possesses a curved brush surface, wherein the curved brush surface is provided with more than two clusters of brushes arranged with intervals at random, adjacent surfaces of the curved brush surface are provided with an upper end surface and a lower end surface, and a corresponding side surface and a second side surface, the lengthes of brushes become shorter from the first side surface and the second surface to the center of the curved brush surface; and a brush handle, wherein one end of the brush handle is connected to the lower end surface of the curved brush. The internal, external and occlusion surfaces of teeth and the gaps between teeth and gum are fully covered and cleaned, toothpaste is easy to adhear to and get in the brushes, tooth brushing becomes time-saving and labor-saving, and a high efficiency is provided.