58results about "Dentist forceps" patented technology

A solid gel foam fire extinguishing agent includes a material A and a material B; the material A includes the following components in mass percentage: 18% to 25% of an inorganic silicate, 0.25% of sodium carboxymethyl cellulose, 0.25% of sodium alginate, 0.1% to 0.5% of xanthan gum, 0.5% to 1% of polyvinyl alcohol, 0.5% to 1.5% of sodium lauryl sulfate, 0.01% to 0.05% of dodecanol, 0.005% to 0.01% of disodium ethylenediaminetetraacetate, and water as a balance; and the material B includes the following components in mass percentage: 25% of sodium dihydrogen phosphate, 25% of acetic acid, 1% to 1.5% of fatty alcohol polyoxyethylene ether, 0.1% to 0.5% of 3% aqueous film-forming foam, 0.01% to 0.05% of the dodecanol, and water as a balance. The fire extinguishing agent exhibits advantages including low density, low oil wettability, high resistance, high adhesiveness, and foam collapse-resistant properties in fire resistance.

The invention provides an auxiliary tooth separation method and system for minimally invasive tooth extraction, and relates to the technical field of digital surgery in stomatology. According to the method, the oral anatomy three-dimensional electronic model is obtained by performing deep learning segmentation and three-dimensional reconstruction on the preoperative CBCT image, and the real-time spatial position and posture of the jaw bone are updated in combination with laser oral scanning of the preoperative anterior tooth area. On the basis, a three-dimensional simulation model is constructed, tooth division cutting path planning, interference judgment and dislocation space analysis are completed, precise tooth division cutting is implemented by a three-way mechanical arm along the planned path, and the safe and controllable automatic tooth extraction and tooth division process is completed in cooperation with water cooling and real-time track correction.

There is provided a kit for performing socket shield technique, and methods for using the kit, wherein the kit may include a wheel bur, having a first working surface disc and a second working surface disc configured to smoothen and cut hard tissues of a tooth; one or more trephine burs with stoppers configured to cut a root canal to create a first tooth fragment and a second tooth fragment, wherein each stopper is compatible with each of the one or more trephine burs; a root fragment remover configured to extract the first tooth fragment and stabilize the second tooth fragment; a split end elevator having a v-shaped notch tip configured to remove the first tooth fragment; a cylindrical bur to control the thickness of the second root fragment; and a round bur configured to separate the second root fragment from unwanted fragments.

Lithium ion batteries are provided that include materials that provide advantageous endothermic functionalities contributing to the safety and stability of the batteries. The endothermic materials may include a ceramic matrix incorporating an inorganic gas-generating endothermic material. If the temperature of the lithium ion battery rises above a predetermined level, the endothermic materials serve to provide one or more functions to prevent and / or minimize the potential for thermal runaway, e.g., thermal insulation (particularly at high temperatures); (ii) energy absorption; (iii) venting of gases produced, in whole or in part, from endothermic reaction(s) associated with the endothermic materials, (iv) raising total pressure within the battery structure; (v) removal of absorbed heat from the battery system via venting of gases produced during the endothermic reaction(s) associated with the endothermic materials, and / or (vi) dilution of toxic gases (if present) and their safe expulsion from the battery system.

The utility model relates to the technical field of medical instruments, in particular to a drag hook for impacted wisdom teeth, which comprises a handle part, a first connecting part and a first working part which are smoothly connected in sequence, the first working part is L-shaped, and the first working part and the first connecting part form a Z shape; the bent position of the first working part is a spherical protrusion, and the end, away from the handle part, of the first working part is of a shovel-shaped structure. The included angle of the joint of the first working part and the first connecting part and the field angle of the first working part are obtuse angles. The first working part is L-shaped, and forms a Z shape with the first connecting part, so that the retractor is located at the optimal working position, and more surgical visual fields can be exposed; the bending part of the working part is arranged to be the spherical bulge, and the spherical bulge can push away and effectively block the buccal fat pad, so that the phenomenon that tissues of the buccal fat pad are drawn in by a cutting rotary head of a power system is prevented, the occurrence of extra trauma, bleeding and other complications can be effectively avoided, and the safety of an operation is improved.

The utility model discloses a dental elevator with a protection function, which comprises a handle and a dental rod arranged at one end of the handle, one end, far away from the handle, of the dental rod is fixedly connected with a dental blade, and the dental elevator further comprises a supporting component which is arranged on the dental rod and is used for supporting the dental blade at a fulcrum when the dental blade is used. The supporting assembly comprises a rotating ring rotationally connected to the position, close to the side wall of the handle, of the threaded rod, a first rotating plate is hinged to the side wall of the rotating ring, the side wall of the threaded rod is sleeved with a protection ring, a second rotating plate is hinged to the side wall of the protection ring, and supporting plates are arranged at the opposite ends of the first rotating plate and the second rotating plate. According to the dental elevator with the protection function, due to the arrangement of the supporting assembly, when the dental elevator is used, the risk that the dental elevator slips due to stress in the use process is reduced, and after the dental elevator is used, the risk that a dental blade is exposed to cause collision damage or accidental scratch to medical staff is reduced.

The invention relates to the technical field of oral medical instruments, and discloses an embedded polygenic tooth digital operation positioning guide plate which comprises a tooth supporting part and a bone supporting part which are integrated, and a positioning hole is formed in the bone supporting part; incision grooves are formed in the left side and the right side of the positioning hole in the bone supporting part, the upper ends of the incision grooves cross the boundary line of the tooth supporting part and the bone supporting part, and gaps are reserved between the lower ends of the incision grooves and the lower edge of the bone supporting part; the inner side face, used for being attached to the bone face, of the bone supporting part is divided into four areas by two incision grooves, the four areas comprise a bone area located between the two incision grooves, and a positioning hole is formed in the bone area; the two side skin areas are located in the area between the incision groove and the side edge of the bone supporting part; the inferior skin area is positioned in an area between one ends, far away from the tooth supporting part, of the two incision grooves and the lower edge of the bone supporting part; the heights of the four areas on the inner side face of the bone supporting part are different, the lower skin area is higher than the two side skin areas, and the side skin areas are higher than the bone area.

A solid gel foam fire extinguishing agent includes a material A and a material B; the material A includes the following components in mass percentage: 18% to 25% of an inorganic silicate, 0.25% of sodium carboxymethyl cellulose, 0.25% of sodium alginate, 0.1% to 0.5% of xanthan gum, 0.5% to 1% of polyvinyl alcohol, 0.5% to 1.5% of sodium lauryl sulfate, 0.01% to 0.05% of dodecanol, 0.005% to 0.01% of disodium ethylenediaminetetraacetate, and water as a balance; and the material B includes the following components in mass percentage: 25% of sodium dihydrogen phosphate, 25% of acetic acid, 1% to 1.5% of fatty alcohol polyoxyethylene ether, 0.1% to 0.5% of 3% aqueous film-forming foam, 0.01% to 0.05% of the dodecanol, and water as a balance. The fire extinguishing agent exhibits advantages including low density, low oil wettability, high resistance, high adhesiveness, and foam collapse-resistant properties in fire resistance.

Ablation probe tips (108, 148, 320, 360) and physical and virtual stents (110) for use in tooth bud ablation procedures that result in tooth agenesis as well as tooth bud ablation methods are described herein.

A guiding device mounted on an impacted tooth, comprising a hook and a wire connected to the rear end of the hook. The hook has a curved shape and capable of passing through the transverse perforation of the impacted tooth. A method for passing the guiding device through the impacted tooth, by using the hook to guide the wire through the transverse perforation. A fixing member mounted on the impacted tooth, formed using the aforementioned method. A tool for assisting passing the guiding device through the impacted tooth, comprising a handle and a receiving portion connected to the handle, the receiving portion comprising a receiving hole and a slot. The receiving hole is capable of tightly receiving the hook of the guiding device, and the slot is in communication with the receiving hole, allowing the wire of the guiding device to pass through and extend out of the receiving portion.

The invention relates to the technical field of medical apparatus and instruments, and discloses an adjustable decayed tooth extractor which comprises a mounting seat, a first hinge shaft is rotatably arranged on the mounting seat, two tooth extraction forceps are arranged on the first hinge shaft, a drug delivery mechanism is arranged on one tooth extraction forceps, and a liquid extraction mechanism is arranged on the other tooth extraction forceps; the dosing mechanism comprises a medicine storage groove, a piston, a first spring and a plurality of discharge ports, the medicine storage groove is formed in one of the dental forceps, the piston is slidably arranged in the medicine storage groove, the first spring is arranged in the dental forceps, one end of the first spring is connected with the dental forceps, the other end of the first spring is connected with the piston, and the discharge ports are formed in the dental forceps; and the plurality of discharge ports are communicated with the medicine storage tank. According to the adjustable tooth decay tooth extraction device, the position of the jaw can be fixed during tooth extraction, so that a doctor does not need to maintain the position with hands for a long time, one of the forceps parts is used for coating a wound with a hemostatic drug, and the other forceps part is used for sucking bloodstain.

The utility model relates to the technical field of oral medical equipment, and provides a device for pulling out a horizontal impacted cross section root of a mandibular third molar, which comprises a suction component, a pulling component and a limiting component, the suction component is detachable and covers a second molar to form a limiting part, and the limiting component limits the pulling component. The extraction component is used for extracting the root parts of the segmented teeth; the suction component comprises a suction groove, an inflation pipeline, an inflation pump and a supporting air bag, one end of the inflation pipeline is connected with the supporting air bag, the other end of the inflation pipeline is connected with the inflation pump to form inflation parts, the suction groove covers the second molar in a buckled mode, the inflation parts are arranged on the two sides of the suction groove, and the suction groove is attached to the second molar; the limiting component is arranged on the upper end face of the suction groove and detachably connected with the pulling-out component. The novel device for pulling out the transverse root of the horizontal impacted tooth has the advantages of low risk of inferior alveolar nerve injury, high patient comfort, strong oral cavity tissue protection capability and simplicity and convenience in operation.

A dental instrument includes a handle and an extension portion, the extension portion has a frontal protrusion that is used to hang an elastic traction ligature. An impacted tooth traction device includes a first bracket for being fastened to an impacted tooth, and a second bracket for being fastened to an anchor body, and the aforementioned elastic traction ligature that is used to connect the first bracket with the second bracket. A method for installing the impacted tooth traction device includes: fastening the first bracket to the impacted tooth, fastening the second bracket to the anchor body, and to connect the elastic traction ligature to the first and the second brackets after the elastic traction ligature is pulled to a certain length.

A magnetic traction device for impacted tooth, comprising a first magnetic component fixed to a normal tooth and a second magnetic component fixed to an impacted tooth. There is an attractive magnetic force between the first and second magnetic components, thereby pulling the impacted tooth toward the direction of the normal tooth where the first magnetic component is located.

The pair of wisdom tooth dislocation pliers comprises a left pliers body and a right pliers body, the front portion of the left pliers body is hinged to the front portion of the right pliers body, a right pliers mouth is arranged on the front portion of the left pliers body, a left pliers mouth is arranged on the front portion of the left pliers body, and the left pliers mouth and the right pliers mouth obliquely extend downwards from back to front. A double-wedge-shaped through groove is formed by the right side of the left clamp beak and the left side of the right clamp beak, a left clamp beak tip is arranged at the end of the left clamp beak, a right clamp beak tip corresponding to the left clamp beak tip is arranged at the end of the right clamp beak, and concave portions are arranged on the right side of the left clamp beak and the left side of the right clamp beak. The tooth extraction device is simple in structure, has double wedge-shaped working ends, can bypass adjacent teeth to enter a mesial gap between an alveolar ridge crest and a target tooth during use, uses a fulcrum of the alveolar ridge crest to apply force to dislocate the target tooth, effectively avoids damage to the adjacent teeth, efficiently realizes extraction of high-resistance normal wisdom teeth and residual roots and crowns, effectively reduces tooth extraction difficulty, reduces tooth extraction wound, and is good in consumer experience.

The invention discloses minimally invasive painless dental forceps, and relates to the technical field of dental medical instruments, the minimally invasive painless dental forceps comprise two symmetrically arranged forceps bodies, each forceps body is composed of a forceps handle and a forceps head, the two forceps bodies are movably connected through a connecting shaft, each forceps body is provided with a minimally invasive painless assembly, the end part of each forceps head is provided with a minimally invasive clamping part, and the minimally invasive clamping parts are connected with the forceps handles. The arc-shaped minimally invasive clamping part is arranged at the end of the forceps head, teeth can be stably clamped, slippage and damage of the teeth in the clamping process are reduced, trauma to gingiva and surrounding tissue is reduced, minimally invasive operation is achieved, and due to the arrangement of a pressure sensor and a temperature sensor, the pressure sensor and the temperature sensor can be used for detecting whether the teeth are damaged or not. The clamping pressure and the temperature of the contact part can be monitored in real time and can be visually displayed through the display screen, a doctor can adjust operation in time according to monitoring data, extra pain and injury to a patient due to too large pressure or too high temperature are avoided, and the painless tooth extraction effect is achieved.

In a control method for a device, in particular for the extraction of tooth roots, the device (10) has an anterior oral-side support (12), a tensioning element (15) guided in the anterior oral-side support, and a tensioning mechanism (20) connectable with the tensioning element (15). The tensioning element (15) is deflected at the front at approximately right angles to the longitudinal extent of the support (12) and is connected with a pin which can be fastened in the tooth root. The tensioning element (15) is pulled into its stretched state by a controllable motor with low force consumption or is connected with the pin in this stretched state. The stretching force (F) is then increased manually or automatically to a predetermined fixed or variable value by preferably increasing the electrical output of the motor of the tensioning mechanism (20), and thereafter, when the tooth root has been loosened, the output of the motor is reduced to a limiting value or to zero. The extraction of tooth roots can thus be carried out very easily and extremely safely, in particular by a dentist.

A denial forceps includes a first, elongate member having a first beak portion and a second elongate member including a second beak portion. The first elongate member and the second elongate member are connected to each other at a pivot point that allows the elongate members to rotate with respect to each other. The dental forceps also includes a locking arm that is connected to one of the elongate members. The locking arm engages a series of teeth that is positioned on the other elongate member. While the locking arm engages the series of teeth, the position of the elongate members with respect to one another is maintained.

The invention provides dental forceps with a depth limiting baffle, and relates to the technical field of medical instruments, the dental forceps comprise working assemblies and a depth control assembly, the two working assemblies intersect and are rotatably connected to form a rotating joint, and the rotating joint is connected with the depth control assembly; the depth control assembly at least comprises an adjusting knob and a limiting baffle connected with the adjusting knob, the height of the limiting baffle is adjusted through rotation of the adjusting knob, and the adjusting knob is connected to one side of the rotating joint. The working assembly comprises forceps beaks and handles, and the adjusting knob and the limiting baffle are both located between the two handles. An adjusting gear is connected to the end, close to the rotating joint, of the limiting baffle and movably connected with the adjusting knob. Limiting lugs are connected to the side portions of the rotating joints, and an adjusting gear is connected between the two limiting lugs. The problems that in the prior art, the dental forceps cannot effectively control the insertion depth of the forceps beak and are poor in universality are solved.

The utility model relates to medical instrument technical field especially is involved in tooth forceps, including the first handle and second handle of split type design, the first handle front end is connected with the first bill, the second handle front end is connected with the second bill, and the first bill and the second bill are articulated through the fulcrum pivot between, be provided with the connecting rod adjusting mechanism for adjusting the fulcrum pivot position on the first handle, and the connecting rod adjusting mechanism includes with slide rail assembly and multilink linkage assembly, and slide rail assembly extends along the first handle inner surface axial direction, and slide rail assembly and multilink linkage assembly one end swing joint, multilink linkage assembly is connected between the fulcrum bearing and slide rail assembly, and one end of multilink linkage assembly is fixed on the second handle, the utility model discloses through setting adjustable clamping fulcrum structure, realizes the adjustment to the mouthful of clamping fulcrum position, to adapt to the anatomical form of different tooth root, reduces the risk of crown fragmentation, and promotes the efficiency and safety of tooth extraction operation.

The utility model belongs to the technical field of dental restoration instruments, and particularly relates to dental restoration crown taking forceps which comprise a first forceps handle, one end of the first forceps handle is fixedly connected with a first forceps head, one end of the first forceps handle is hinged with a second forceps handle, one end of the second forceps handle is fixedly connected with a second forceps head, and the other end of the second forceps handle is hinged with a third forceps head. A second connecting plate is fixed to the other end of the second plier handle, a first screw rod is fixed to the side wall of the second connecting plate, the outer side of one end of the first screw rod is in threaded connection with a puller nut, and the outer side of the first screw rod is sleeved with a first adjusting handle. After the crown taking pincers are placed on the inner side of the oral cavity of a patient, if the angle of the pincers handles of the crown taking pincers is not smooth and an operator cannot exert strength, the operator can adjust the pincers handles to the smooth angle by rotating the first adjusting handle and the second adjusting handle and then tighten the puller nuts to fix the adjusting handles, so that repair operation is facilitated, and the working efficiency is improved. The convenience of mouth rehabilitation operation is improved, and the practicability of the crown taking forceps is improved.

The utility model discloses a medical crown-removing clamp for mouth rehabilitation, which belongs to the technical field of mouth rehabilitation and comprises a crown-removing clamp for taking out a dental crown of the mouth of a patient, the crown-removing clamp comprises an operating handle, a connecting cylinder and a crown-removing head, the connecting cylinder is in threaded connection with the operating handle, the crown-removing head comprises a first crown-removing head and a second crown-removing head, and the first crown-removing head and the second crown-removing head are in threaded connection. The first crown removing head is arranged in the center of the bottom of the connecting cylinder, an adjusting groove is formed in the connecting cylinder, the upper end of the second crown removing head penetrates through the adjusting groove to be located in the connecting cylinder, the second crown removing head and the adjusting groove are arranged in a sliding fit mode, and the upper end of the second crown removing head is in threaded connection with a fixing rotary knob. According to the device, when a dental crown needing to be worn by a patient needs to be replaced or the dental crown is loosened, damaged, not sealed in edge and the like, a medical worker can hold the operating handle by hand to take out the crown removing head hook on the dental crown, and the crown removing heads are the first crown removing head and the second crown removing head, so that the contact area of the crown removing heads on the hook and the dental crown can be increased.

The invention provides an intelligent efficient equine animal cleaning, grinding, repairing and tooth extraction machine, and relates to the field of dental instruments, the intelligent efficient equine animal cleaning, grinding, repairing and tooth extraction machine comprises a clamp and grinding mechanisms arranged at the two ends of the clamp respectively, the grinding mechanisms comprise mounting seats arranged on the clamp and cavities formed in the mounting seats, in order to solve the problems that in the prior art, an electric tooth grinding tool is single in function, only one side of an equine animal tooth can be ground when the electric tooth grinding tool works, the angle needs to be continuously adjusted for peripheral grinding when the electric tooth grinding tool works, and the working efficiency is low, high-efficiency grinding is achieved through the arranged grinding mechanism; by arranging the grinding mechanism, the problem that in the prior art, excessive grinding causes damage to the teeth of the equine animals is solved; through the arranged grinding mechanism, the problem that in the prior art, the grinding efficiency is affected by impurity accumulation is solved; and through the arrangement of the polishing mechanism, the problem that secondary tooth extraction in the prior art causes great harm to equus animals is solved.

The pair of adjustable dental forceps comprises a first forceps body and a second forceps body, the middle positions of the first forceps body and the second forceps body are hinged, and the tail ends of the first forceps body and the second forceps body form an operating end; the pliers further comprise pliers heads, the pliers heads are installed at the head positions of the first pliers body and the second pliers body in a telescopic rotating mode, and each pliers head can be stretched relative to the pliers body or the working angle can be adjusted; and the spacing-adjustable contact head is arranged on the contact surface of the forceps head and the teeth, and the contact surface is adjusted according to the size of the teeth. According to the utility model, the clamping area of the forceps head can be adjusted according to the width of teeth, and the angle and extension length of the forceps head relative to the forceps body can be adjusted, so that the flexibility and efficiency of tooth extraction operation are obviously improved.

A handheld vise for dental crowns includes a vise block, an elongated handle extending from the vise block, a linear screw embedded in the vise block, and first and second jaws. The second jaw may be arcuate on a gripping surface thereof to conform to the shape of a dental crown. The handheld vise is sized for quickly and readily securing a dental crown such as a stainless-steel dental crown for use in pediatric dentistry. An elastomeric material may be used on the gripping surfaces of the vise. A radius of curvature of the gripping surface of the second jaw may be between about 25-35 mm. A height of the jaws may be between about 2-5 mm, and a distance between the first jaw and a vertex of the second jaw may range from about 3-10 mm. A method and kit for forming crowns including the handheld vise are disclosed.

The application discloses a dental surgical tooth extraction car needle with a double depth setting mechanism, and relates to the technical field of medical devices.The car needle comprises a car needle body, wherein the car needle body has a working end and a handle portion, a blocking ball is installed at the joint of the working end and the handle portion of the car needle body, and a first mark point and a second mark point are installed on the surface of the working end of the car needle body.The car needle has the advantages that the first mark point and the second mark point are arranged on the surface of the working end of the car needle body, and the two mark points are sequentially arranged along the direction from the tip of the working end to the handle portion, so that a doctor can know the bone removal depth in stages by observing the level relationship between the mark points and the gum or the bone surface in a direct vision mode without relying on subjective hand feeling, the depth judgment is converted from experience dependence to visual confirmation, and the accuracy and the repeatability of the bone removal operation are significantly improved.

A system including a sensored ablation probe tip and a virtual stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit. A system including a sensored ablation probe tip and a stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit.