1930 results about "Mouth opening" patented technology

Systems and methods for using a liquid jet apparatus for dental treatments are disclosed. In one implementation, the liquid jet apparatus may include a handpiece configured to deliver a high velocity liquid jet to a desired location in the mouth of a patient. The handpiece may include a positioning member having a channel through or along which the jet can propagate. The positioning member may have a distal end portion configured to be at least partially disposed in a pulp cavity, canal space, or opening in the tooth under treatment. During operation, the jet may impact an impingement surface of the distal end portion of the positioning member and be deflected as a spray through one or more openings in the distal end portion. The liquid jet apparatus may be used for root canal treatments.

The invention relates to a dissolvable food gel gradient-based swallowing ability dynamic quantification method, which comprises the following steps of: constructing a microstructure unit consisting of an instantaneous surface attachment area and a middle-stage debonding layer in dissolvable food gel, and simulating early-stage sensing delay and middle-stage release response in a swallowing process; different material behavior reactions are generated in the front stage, the middle stage and the rear stage of swallowing by regulating and controlling the hydration diffusion rate, the surface tension and the internal cohesion difference value of the gel, and the gel of each stage corresponds to the set micro-viscosity and release coupling ratio, so that swallowing strategies of different stages are adapted; controllable disintegration temperature-sensing microparticles or traceable microcapsules are partially embedded in the food gel, the food gel is detained in a pharyngeal cavity after being swallowed, and the removal efficiency after swallowing is detected according to migration behaviors within a set time window; after swallowing, the reduction behaviors of the oral cavity, the tongue body and the throat muscle group are monitored, and when the characteristic action of reduction delay, secondary mouth opening, repeated swallowing or pharyngeal itching occurs, it is judged that the swallowing behavior closed loop is interrupted.

The invention relates to the technical field of three-dimensional point cloud data processing, in particular to a digital denture model design method based on a jaw position relation. Based on comparison of the initial three-dimensional point clouds under different opening amplitudes, a soft tissue interference area where soft tissue movement possibly exists and a hard tissue boundary false displacement area corresponding to point cloud overlapping caused by a scanning view angle are obtained; according to the method, the movement trend of each point in the false displacement area of the hard tissue boundary is corrected in combination with the movement trend of the adjacent area in the oral cavity, so that the corrected three-dimensional point cloud obtained after correction is more accurate, the accuracy of recording according to the corrected three-dimensional point cloud is higher, and the accuracy of the generated digital denture is improved.

A tamper-indicating and child resistant cap and container assembly, comprising a cap comprising: a cap top wall; a cap skirt having an inner wall which is at least partially threaded, and an outer wall having at least one squeezing location; at least one tamper-indicating band frangibly connected to a free end of the cap and having defined therethrough an opening; at least one tongue extending from the free end of the cap skirt which circumferentially spaced from the at least one squeezing location. The container has an open end and a neck, an outer wall of the neck being at least partially threaded and configured to cooperate with the at least partially threaded inner wall of the cap; and at least one protrusion extending from the outer wall of the container neck and configured to be received in the opening of the at least one tamper-indicating band.

A footwear article includes (a) an upper having a tongue opening at a front thereof; (b) a gusseted tongue including a tongue panel positioned over the tongue opening and a pair of gussets attaching laterally opposite sides of the tongue panel to the upper; (c) a pair of tongue fasteners configured to selectively fasten and unfasten corresponding sides of the tongue panel to and from the upper; (d) a first lacing system on the upper and arranged for guiding lacing over the gusseted tongue and tongue fasteners when the sides of the tongue are fastened to the upper; and (e) a second lacing system on the tongue panel and arranged for guiding the lacing across the tongue panel clear of the tongue fasteners when the sides of the tongue panel are unfastened from the upper.

The invention discloses a human face mouth shape coordination generation method based on geometric constraints, and relates to the technical field of image generation, and the method comprises the steps: 1, synchronously generating face vertex index tables corresponding to mouth opening and closing spatial form matrixes one by one; 2, based on the facial vertex index table, mapping the lip and gum combined boundary constraint set to a unified coordinate system to form a geometric prior constraint tensor; 3, performing multi-modal topological cascade reversible mixed transformation on the geometric prior constraint tensor to obtain a high-dimensional tooth texture candidate tensor and constraint consistency confidence spectrum; and step 4, using the high-dimensional tooth texture candidate tensor and the constraint consistency confidence spectrum as input, completing anti-aliasing, illumination compensation and gamma correction on a unified rendering pipeline, and finally obtaining a mouth shape coordination synthetic frame sequence. According to the method, the sense of reality, geometric consistency and time sequence coherence of tooth textures in the mouth shape synthesis process are effectively improved, and the problem that lips and teeth are not coordinated in an existing method is solved.

A closure system for a medication container, the interior of which is accessible via a container opening designed in the manner of a bottle mouth, comprising a bump cap with an annular lid having a central opening, on the outer circumference of which is arranged a number of latching elements which can be brought into engagement with an outer bead mounted circumferentially on the container opening, and a one-piece closure plug with a closure body which completely fills the central opening of the annular lid and can be brought into latching engagement therewith, is intended to enable continuous compliance with even high sterility requirements during handling in a simple and reliable manner. For this purpose, the closure body is designed as a duckbill valve.

The invention relates to a stator of an electric motor comprising teeth (4) and coils mounted on the teeth (4), the stator further comprising a system for cooling the stator with a heat-transfer fluid and at least one opening (5) passing through the tooth (4) so as to allow at least some of the heat-transfer fluid to pass through the tooth (4).

Methods of assembly of and a mixing system for use in a process bottle for mixing its contents, the mixing system including a low volume magnetically-driven mixer mounted at the bottom of the bottle. The mixer may have vanes and lower grooves, or no vanes and grooves on both upper and lower faces. The mixer has a “microsized” three-dimensional solid inanimate body to enable insertion through relatively small mouth openings at the top of conventional reactor bottles. The methods of assembly involve passing the microsized mixer through an open mouth of a process bottle and coupling the mixer with a bearing assembly at the floor of the bottle. The bearing assembly includes fixtures sealed around a hole in the floor of the bottle. A cap may be assembled to the bottle in a sterile environment to from a consumable assembly which is then enclosed in a sterile package for shipping to a customer. A variety of tube connectors to the cap may be customized for instant use by the customer.

The invention discloses a machine shell for oral cavity cleaning and an oral cavity cleaning device, the machine shell comprises a shell body and a cover body, the shell body is provided with an opening, and the cover body covers the opening of the shell body; the cover body and the shell are mutually nested in a preset direction, and a liquid storage cavity is defined by the cover body and the shell; a micro-channel is formed between the shell and the cover body; the micro-channel can allow gas to penetrate in the preset direction and prevent liquid from flowing out, and the micro-channel communicates the liquid storage cavity with the outside through an assembly gap between the shell and the cover. The casing for oral cavity cleaning and the oral cavity cleaning device have the effects of being free of holes in appearance, breathable and waterproof.

The invention relates to the technical field of implant teeth, in particular to a biomedical implant tooth guiding device and method.The biomedical implant tooth guiding device comprises a positioning base plate, the positioning base plate is clamped to the outer side of a gum through a positioning clamping groove, guiding plates are oppositely arranged on the two sides of a tooth implantation point position, and the ends, located on the tongue side, of the two guiding plates are fixedly connected to the positioning base plate; an opening is formed in the positioning base plate on the cheek side at the tooth implantation point, a guide block is arranged between the two guide plates in a sliding and penetrating manner, and one end, on the tongue side, of the guide block is detachably connected with the positioning base plate through a lock catch assembly; the positioning block can be quickly inserted, pulled and replaced, drill rods with different diameters are all provided with brand-new guide holes, the center lines of the drill rods are highly overlapped, and tooth implantation point positions are completely exposed after the drill rods are moved out and are convenient to clean; the spiral diversion trench and the drill rod form a cooling channel matched with a liquid suction channel, so that cooling liquid is rapidly conveyed and cooled, and waste liquid is timely removed; the clamping assembly is arranged to be integrally assembled outside the oral cavity and then fed into the mouth for accurate positioning at a time.

Even if the cap is removed from the mouth of the container while the internal pressure of the container body has increased, the contents will not spray out through the connecting passage. [Solution] The container comprises a container body 11 for containing the liquid contents, a cylindrical stopper member 12 attached to the mouth 11a of the container body, and an impregnating material 13 attached to the inside of the stopper member and capable of impregnating the liquid contents. The stopper member comprises a containment cylinder 15 for containing the impregnating material with its upper end protruding, and a communication cylinder 16 that connects the inside of the containment cylinder and the inside of the container body. A communication passage 21 is provided between the containment cylinder and the impregnating material, connecting the inside of the communication cylinder and the upper end opening 15b of the containment cylinder. The communication cylinder has a main passage 22 that connects the communication passage and the inside of the container body, and a capillary passage 23 that connects the communication passage and the inside of the container body, and has a smaller flow path cross-sectional area than the main passage, causing capillary action, arranged in parallel.

A method, for forming an intraoral monitor includes forming a first portion of a retainer corresponding in shape to teeth. The method includes forming a second portion of a retainer corresponding in shape to the teeth and including a pocket for insertion of a sensor. The method includes coupling the first and second portions of the retainer to envelop the sensor in the pocket, the retainer having an opening such that the sensor is exposed to the buccal side of the mouth of a user when the retainer is mounted on the teeth.

An improved dental impression tray system provides a way to accommodate multiple arch sizes. The tray is adjustable and has an anterior section with two distal ends and a posterior section with two distal ends. The two sections are connected together at their distal ends. A mesh membrane extends between the sections to maintain the impression material. The ends of the posterior section include a plurality of vertical pins and a vertical opening is located adjacent each distal end of said anterior section. To adjust the size of the tray, the distal ends of the anterior section can be disconnected from said distal ends of the posterior section and then reconnected by inserting the pins into the opening. Further size adjustments can be made by removing additional pins and inserting the next remaining pins into the openings.

The utility model discloses an orthodontic bracket capable of reducing friction force, which is characterized in that single-side oblique angles are arranged on the near, far and middle opening sides of a main arch wire groove, the two single-side oblique angles are arranged in parallel, a horizontally arranged transition groove is formed between the two single-side oblique angles of the main arch wire groove, and the transition groove is communicated with the main arch wire groove. The oblique angles are arranged on the near, far and middle opening sides of the main arch wire groove, so that the contact between the dental arch wire and the side wall of the main arch wire groove is changed from linear contact to point contact, the contact area between the dental arch wire and the groove of the main arch wire groove is reduced when teeth incline and move, and the dental arch wire ligature structure has the advantages that the dental arch wire ligature structure is simple in structure and convenient to use. The friction force between the teeth is reduced, the anchorage is saved, and the tooth moving efficiency is improved; the transitional groove is formed in the main arch wire groove, so that the bracket can be quickly positioned during clinical operation, the bracket is ensured to be positioned in the middle of teeth, and doctors in the industry can accept and master the bracket more easily.

A closure for a beverage can lid has a body having a back end and a front end with the front end having a first ear section having a first rounded section, a first indented portion, and a first lobe section, a second ear section having a second rounded section, a second indented portion, and a second lobe section, a central rounded section having a rivet opening formed therein and the central rounded section positioned between the first ear section and the second ear section, a first central section having a first step down section, and a second central section having a second step down section.

A fluid substance dispensing device includes an external container with a containment element formed of a deformable part and an essentially rigid neck featuring a first flange which abuts with a free end of the external container at one of the mouth thereof, an intermediate element with a cup-shaped part inserted into the neck and fastened to the external container so that the first flange is sandwiched between the free end and the intermediate element, the cup-shaped part including an opening in communication with an internal part of the deformable part, there being—inside the cup-shaped part—a valve element configured for displacement by the body of an airless pump so that, when the body of the pump is absent or in an unused position, the valve element is stably closed, while when the pump body is pushed into a use position, the valve element is stably open.

A closure for a spout of a thin-walled flexible package has a cap and a tamper evident seal having a tamper evident ring suitable for being applied to the spout, a tamper evident portion integral with the cap, and at least one breakable bridge which, when the tamper evident seal is unbroken, joins the tamper evident ring to the tamper evident portion. The tamper evident ring has an upper face that delimits the tamper evident ring at the top, the upper face consisting of a wavy surface having circumferentially successive ridges and valleys, each valley having a bottom surface. The tamper evident portion has at least one tamper evident tooth having a top face that is contained in a respective valley. The at least one breakable bridge joins the bottom surface and the top face and is contained in the valley.

This application relates to nasal seals and breathing interfaces. A nasal mask is disclosed, the nasal mask having a sealing housing and a flexible nasal seal that is connected or connectable to the sealing housing to define a mask cavity. The nasal seal extends between a face-contacting side and an outer side. The nasal seal has a contact surface that has an edge defining a nasal receiving opening leading into the mask cavity and is configured to seal around a user's nose. The nasal seal also has a sub-nasal support that is fixedly connected within the seal and is configured to extend within the mask cavity and have a contact surface that is oriented to contact at least a portion of the lower surface of the user's nose.

The utility model discloses a convenient-to-adjust oral lip distraction device for the department of stomatology, which belongs to the technical field of medical instruments for the department of stomatology and comprises two groups of mouth gags which are symmetrically arranged, and one side of each mouth gag is integrally provided with a mounting part; the adjusting device further comprises an adjusting assembly, the adjusting assembly comprises a threaded rod, one end of the threaded rod is fixedly connected with the mounting ring, the mouth gag is mounted on the surface of the mounting ring through a mounting part, the threaded rod is in threaded fit with the adjusting seat, and a screwing column is fixedly mounted at the other end of the threaded rod; the device further comprises a supporting assembly. The head top ring and the lower jaw seat are matched with the fixing rod for use, the structure is simple, convenience and practicability are achieved, the adjusting assembly can be fixed to the front portion of the face of a patient, only the mouth gag enters the mouth of the patient during use, the mouth gag is independently cleaned and disinfected after use, the adjusting assembly does not make direct contact with the patient, and the patient is prevented from being pinched.

A machine for stirring a liquid food substance has a container delimiting a cavity with a bottom and a peripheral wall for containing the liquid food substance to be stirred. The cavity extends generally along a generally upright central container axis and has a mouth for removing from the container the liquid food substance upon stirring. The machine also has an impeller including an impelling member to be rotated in the cavity against the liquid food substance about an impeller axis that is generally identical or generally parallel to the container axis. The impelling member is configured to be spaced above the cavity's bottom by (i) a maximum stirring distance when the impelling member is rotated at a maximum stirring speed about the impeller axis and (ii) a resting distance, smaller than the maximum stirring distance (H), when the impelling member stands still.

The utility model discloses an anti-loosening telescopic crown denture, and relates to the field of dentures, the anti-loosening telescopic crown denture comprises a tooth body, a connecting assembly mounted on the tooth body, a clamping assembly clamped on the connecting assembly and a denture mounted on the clamping assembly, the connecting assembly comprises a clamping seat fixedly connected to the tooth body, and a through groove is formed in the outer wall of one side of the clamping seat; and a mounting cavity is formed in the clamping seat, an opening is formed in the inner wall of one side of the mounting cavity, the inner wall of the opening is slidably connected with an L-shaped connecting seat, the inner walls of the two sides of the mounting cavity are rotatably connected with the same two-way screw rod, and the outer wall of the two-way screw rod is in threaded connection with two symmetrically-arranged threaded sleeves. The connecting assembly is arranged on the tooth body, the clamping assembly is arranged on the false tooth, and the clamping assembly is matched with the connecting assembly, so that the false tooth is conveniently fixed, meanwhile, an adjustable L-shaped connecting seat in the connecting assembly is convenient for tensioning a clamping seat, and the problem of loosening of the false tooth is effectively avoided.

An end nut assembly comprising a nut body defining a first portion and a second portion, a first opening is adjacent the first portion and a second opening is adjacent the second portion, and an axial bore extends between the first opening and the second opening. A bite ring defines an outer ring and a plurality of teeth extends radially inwardly from the outer ring, and a spacer defines an inner surface and an outer surface, wherein the inner surface defines a cavity centrally located within the spacer. The end nut assembly does not contain an o-ring.

The ear tag pliers comprise a pliers seat, an opening is formed in the rear side of the pliers seat, two sliding rods are fixedly connected into the opening, a first handle is fixedly connected to the rear side of the pliers seat, a hanging rod is fixedly connected to the bottom of the pliers seat, and a disinfectant storage box is fixedly connected to one end of the hanging rod. The animal ear cleaning and disinfecting device has the advantages that the first handle and the second handle are held by hands to enable the clamp base to be arranged on an animal ear in a sleeved mode, then the first handle and the second handle are pressed to drive the positioning and perforating mechanism and the cleaning and disinfecting mechanism to operate at the same time, and the positioning and perforating mechanism can conduct positioning and perforating on the animal ear. The cleaning and disinfecting mechanism can spray disinfectant to the perforated part of the animal ear for disinfection, the structure is reasonable, quick positioning and perforating are facilitated, meanwhile, the cleaning and disinfecting mechanism can disinfect the perforated part of the animal ear, and inflammation after the animal ear is perforated is prevented.

An airbag configured to be part of a wearable safety system that allows for the provision of face protection is provided. The airbag (100) comprises a C-shaped neck portion (4) having a mouth portion (9) mating with a central opening (10) configured to receive a user's neck. The neck portion (4) is adapted to partially encircle the user's neck. The airbag further comprises first and second elongated face portions (5) extending from the C-shaped neck portion (4) in regions opposite the mouth portion (9), each face portion (5) having two opposing long sides. A first attachment portion (20) of one of the two opposing long sides of the first face portion (5) is attached to an inner peripheral edge portion (23) of the central opening (10) in a region adjacent to the first edge portion (12) of the mouth portion (9), and a first attachment portion (22) of one of the two opposing long sides of the second face portion (5) is attached to the inner peripheral edge portion (23) of the central opening (10) in a region adjacent to the second edge portion (12) of the mouth portion (9). Further provided is a wearable safety system comprising a harness (200).

A dental high-speed contra-angle handpiece (1) for processing hard materials in the oral cavity of a patient, comprising: an outer sleeve (2) delimiting the dental high-speed contra-angle handpiece (1) from the environment, said outer sleeve having a handle portion (2A) extending along a longitudinal axis (3) and a head portion (2B) extending along a rotational axis (4), wherein the longitudinal axis (3) and the rotational axis (4) are arranged at an angle other than 0° to one another; a holding device (5) arranged in the head portion (2B) for holding a processing tool (6) such that it can rotate about the rotational axis (4); a tool receiving opening (7) for inserting and releasing the processing tool (6) into the holding device (5); a mechanical drive device (8) for rotating the holding device (5) to an idle speed of at least 140,000 rpm; and a spring element (25) preloaded and displaceable along the rotational axis (4). Actuator (19),which is operatively connectable to the holding device (5) in order to selectively move the holding device (5) from a first position, in which the machining tool (6) is fixed in the holding device (5), to a second position, in which the machining tool (6) can be inserted into or removed from the holding device (5), characterized in that the holding device (5) comprises: a drive sleeve (9) for releasably receiving a shaft (6A) of the machining tool (6), wherein the drive sleeve (9) has an outer wall (9A) in which a plurality of through-bores (10) are provided, and the outer wall (9A) surrounds a cylindrical interior (11) in which the shaft (6A) of the machining tool (6) can be received, a plurality of holding bodies (12) movable radially to the axis of rotation (4), wherein a holding body (12) can be received in each of the through-bores (10) of the drive sleeve (9),a clamping sleeve (13) which is displaceable along the rotational axis (4) and has a clamping sleeve wall (13A) which surrounds the holding bodies (12) and at least the section of the drive sleeve (9) having the through-bores (10), wherein by displacing the clamping sleeve (13) along the rotational axis (4), the holding bodies (12) are movable radially with respect to the rotational axis (4) and the clamping sleeve (13) and / or the holding bodies (12) selectively assume the first position and the second position, wherein in the first position the holding bodies (12) are pressed by the clamping sleeve (13) into the through-bores (10) of the drive sleeve (9) in such a way that sections of the holding bodies (12) protrude into the cylindrical interior (11) of the drive sleeve (9), whereby the shank (6A) of the machining tool (6) is fixed in the cylindrical interior (11) of the drive sleeve (9), and in the second position the Clamping sleeve (13) surrounds the holding body (12) with play,so that the holding bodies (12) can be moved radially away from the axis of rotation (4), whereby the shaft (6A) of the machining tool (6) can be inserted into or removed from the drive sleeve (9).

The utility model discloses a woven bag opening mechanism used during filling of woven bags, and relates to the technical field of woven bag opening. The opening expanding assembly is arranged on the frame body and used for expanding openings of the woven bags; the opening expanding arc plate position adjusting assembly is arranged on the frame body and the opening expanding assembly and used for adjusting the position of the opening expanding assembly and expanding the woven bag; and the driving assembly is arranged on the frame body and the mouth opening arc plate position adjusting assembly and is used for driving the mouth opening arc plate position adjusting assembly and holding the device. The effect of opening a woven bag opening can be achieved through cooperation of the first opening opening arc plates and the second opening opening arc plates, and the device is simple in structure, small in size and easy to use, so that the two second opening opening arc plates can be driven to be away from each other, and the woven bag opening effect is improved. And the effect of driving the opening expanding assembly to expand the woven bag is achieved.

The invention relates to the field of oral medical equipment, and particularly provides an oral implant repair opening degree measuring device and a using method, the oral implant repair opening degree measuring device comprises two positioning supports, the two positioning supports are detachably connected with an angle measuring scale, and the ends of the two positioning supports are connected through a rear tooth area measuring scale; a fixing assembly and a first sliding rail are arranged in the positioning support, the fixing assembly is used for fixing the positioning support and the teeth, and the sliding rail is slidably connected with the tooth root fossa measuring mechanism. The positioning support is made of memory alloy, adaptability is high, the positioning support can be stabilized on teeth of the upper jaw and the lower jaw in the measuring process through fixing of the fixing assembly, and then measuring precision is improved. The angle measuring scale is connected to the anterior parts of upper and lower jaw anterior teeth of a patient and is used for measuring an opening angle; the posterior tooth area measuring scale is connected with the upper positioning support and the lower positioning support so as to measure the opening degree of the posterior tooth area. The tooth root socket measuring mechanism is used for measuring the depth and width of the tooth root socket exposed after tooth extraction of the patient. On the premise of meeting the requirement of opening degree measurement, a relatively accurate tooth root socket measurement function is provided.

A ratchet wrench, comprising: a handle; a working part, the working part comprising a circumferential wall and a transition portion, the circumferential wall defining an accommodation space therein in the shape of an opening, the transition portion coupling the handle to the circumferential wall, the transition portion defining an accommodation cavity therein, the accommodation cavity in communication with the accommodation space; a drive member, the drive member disposed within the accommodation space and configured to be rotatable about a center axis of the accommodation space, the drive member defining first teeth on its outer circumferential surface; a pawl, the pawl disposed within the accommodation cavity, the pawl having a first surface and a second surface, which oppose each other, the first surface provided thereon with second teeth, the second teeth configured to be able to be brought into meshing engagement with the first teeth, the second surface oriented to face a side wall of the accommodation cavity; and a first resilient element, the first resilient element disposed within the accommodation cavity and configured to be able to apply a biasing force to the pawl to push the pawl toward an end of the accommodation cavity to disengage the second teeth from meshing engagement with the first teeth.