22 results about "Dental drill" patented technology

The application provides a planting mobile phone, which comprises a stopping device and is capable of being connected with a dental drill used for punching, the dental drill is arranged along a Z axis, the stopping device comprises a rotating member, a connecting member and a stopping member, the rotating member is provided with a spiral groove, the connecting member is connected with the spiral groove, the connecting member is capable of moving along the spiral groove, and the stopping member is connected with the connecting member, when the connecting member moves in the spiral groove, the stopping member is capable of moving linearly along the direction of the Z axis, and the length of the dental drill exposed from the stopping device is controlled. The application drives the stopping member to move by rotating the rotating member, the exposed length of the dental drill is adjusted, and then the control of the punching depth of the dental drill is realized. In the whole operation process, the dentist does not need to touch the stopping member, and the risk of infection of the wound and the operation time are reduced.

The utility model relates to a dental drill device, a voltage regulator for a dental drill and a pneumatic switch of the voltage regulator. The pneumatic switch comprises a pneumatic valve and an infrared correlation sensor. The pneumatic valve and the infrared correlation sensor can be arranged on the pressure regulator body. A valve body of the pneumatic valve is connected with a high-pressure air source, and a telescopic push rod is arranged on the valve body. The push rod and the infrared correlation sensor are oppositely arranged, the infrared correlation sensor is provided with a transmitting end and a receiving end, and an infrared light path is formed between the transmitting end and the receiving end. When the push rod is driven by high-pressure gas output by the high-pressure gas source to be in an extension state, the push rod shields the infrared light path, and the pneumatic switch is turned on. When the push rod resets and is in a shortened state, the push rod is separated from the infrared light path, and the pneumatic switch is turned off. The pneumatic valve has the beneficial effects that the solid structural part pneumatic valve made of hard materials is adopted for bearing driving force of high-pressure gas, and the pneumatic valve is high in bearing capacity, not prone to being damaged and long in service life.

The utility model belongs to the technical field of medical instruments, and particularly relates to a dental drill guider for implantation, which comprises a handle and a guide sleeve, one end of the handle is provided with a connecting shaft which is bent deviating from the axis, and the guide sleeve is vertically arranged on the connecting shaft. A guide through hole is axially formed in the guide sleeve, an open groove communicated with the guide through hole is axially formed in the side wall of the guide sleeve, and a stop block with a narrowed groove opening is arranged on at least one part of the groove wall of the open groove. The open groove is axially formed in the side wall of the guide sleeve, so that a neck forming dental drill or a machine tapping dental drill can transversely enter the guide sleeve from the side of the guide sleeve, and the situation that the diameter of a drill bit of the dental drill is larger than the diameter of a rotating shaft and cannot be installed in the sleeve is avoided; and the baffle block is additionally arranged on the side wall of the open groove to reduce the size of part of the groove opening, so that the surrounding limitation of the inner wall of the guide sleeve on the dental drill is increased, and the dental drill can stably rotate in the sleeve.

The utility model belongs to the technical field of medical instruments, and particularly relates to a dental drill for implant surgery, which comprises a drill handle and a drill body arranged at one end of the drill handle, the drill body is provided with a plurality of blades axially and spirally distributed, and the blades converge on the end face far away from the drill handle to form an invasion cutting portion with taper. The cutting edges form a chambering part extending spirally on the cambered surface of the drill body, and end chip grooves with the number smaller than that of the cutting edges are formed in the cutting part. The axial end of the drill body is provided with the cutting blade with taper, the inclined groove for cuttings to invade is formed in the hole opening of the pre-formed small hole, so that the dental drill can smoothly drill into the pre-formed small hole, the blade is prevented from being clamped in the small hole, the cutting part is provided with the end chip grooves with the number unequal to that of the blade, and the blade back with the axial compression area unequal to that of the blade is arranged, so that the tooth drill can smoothly drill into the pre-formed small hole. The blades on the invasion cutting part are subjected to different axial pressures, and single blade concentrated stress is formed by using the pressure difference, so that the invasion efficiency is improved.

In some aspects, dental drill guides can include a body defining an outer surface and an interior hole for receiving and positioning a dental drill; a first end of the body defining a tapered lead-in portion of the outer surface; a second end of the body opposite the first end defining at least one lip feature configured to be gripped by a handling tool; an outer circumferentially formed recess around the outer surface; and a seating feature extending from the outer surface.

The invention discloses high-cobalt stainless powder metallurgy high-speed steel and a preparation method and application thereof.The high-cobalt stainless powder metallurgy high-speed steel comprises, by mass, 15%-25% of Cr, 1.4%-1.6% of C, 5%-10% of Co, 0.05%-0.10% of B, 0.1%-0.3% of La and the balance Fe and inevitable impurities, the B and the La are preferably added in the form of lanthanum hexaboride (LaB), and the high-cobalt stainless powder metallurgy high-speed steel is prepared through ball milling, cold pressing, vacuum sintering and multi-section heat treatment processes. The alloy has the advantages of compact structure, fine carbide, pure grain boundary, high hardness of HRC 67-69, salt mist corrosion resistance of more than or equal to 290 hours and excellent wear resistance, and is suitable for manufacturing high-end cutting tools in complex corrosive environments, such as military daggers, dental drill bits, medical cutting instruments, stirring and crushing knives and the like.

A method of surface treating a drill, the drill including a shaft extending along a central longitudinal axis from a proximal end to a distal end, the proximal end of the shaft including a shank adapted for connection to a rotary driver, the shaft further including, distal of the shank, a fluted section including at least one flute extending along the longitudinal length of the fluted section, the method including the steps of: acid etching at least a portion of the fluted section of the shaft in order to create a visible matted effect, subsequently electro-polishing at least the portion of the fluted section of the shaft in order to visibly reduce the matted effect and subsequently creating one or more visual marking within the portion of the fluted section of the shaft.

A non-resorption high-speed mobile phone comprises a head shell, a bearing seat, a non-return sleeve, a flat gasket, a rotating assembly and a rear cover assembly. The bearing seat is installed in one end of the head shell, the rear cover assembly is installed at the other end of the head shell, one end of the rotating assembly is rotatably installed on the bearing seat, the other end of the rotating assembly is rotatably installed on the rear cover assembly, and the rotating assembly is located in the head shell; one end of the non-return sleeve is installed on the bearing seat, the other end of the non-return sleeve can abut against the rotating assembly, and the flat gasket is installed on the bearing seat. The non-resorption high-speed handpiece provided according to the content solves the problems that in the prior art, after a dental drill high-speed handpiece stops working, a mandrel needs to be completely stopped for a long time and can be taken out of an oral cavity after stopping, so that working efficiency is low, the interior of the dental drill high-speed handpiece can be in a negative pressure state after shutdown, and the working efficiency is low. And impurities and liquid in the oral cavity can be adsorbed to enter the inner part to be polluted, so that the service life is greatly shortened.

The present invention relates to a dental handpiece (1) comprising: a dental handpiece (1) comprising: a head (4): a rotatable hollow shaft (15) which is rotatably arranged inside the head (4): a driving means for rotating the hollow shaft (15): a chuck (26) having resilient arms (27) for releasably clamping a dental drill (2), wherein the chuck (26) is fixed into the hollow shaft (15) so as to rotate with same: a ball (14) which is axially movably arranged inside the rotatable hollow shaft (15) and in direct contact with the resilient arms (27) of the chuck (26), wherein the ball (14) partly protrudes through an opening (17) on the upper end of the hollow shaft (15), and wherein the opening (17) is smaller than the size of the ball (14): a push button (7) which is arranged in the head (4) and configured to contact. when pressed by a user. the partly protruding ball (14) and move the ball (14) downwardly in between the resilient arms (27) so as flex the resilient arms (27) radially outwards and release the dental drill (2), wherein the resilient arms (27) bias the ball (14) inside the rotatable hollow shaft (15) towards the opening (17); and a biasing means to move the push button (7) away from the ball (14), wherein the push button (7) is not in contact with the ball (15) when it is released.

A dental handpiece and drill cyclic pressure life testing device includes a base plate, an adjustment seat mounted on one side of the base plate, a support column above the adjustment seat, a mounting block connected to the support column, a dental handpiece mounting seat connected above the mounting block, and a pressure testing bracket mounted on the other side of the base plate. A side mounting plate and a front mounting plate are connected to the pressure testing bracket. A motor and a rotating shaft are mounted on the side mounting plate, the motor driving the rotating shaft to rotate. An eccentric wheel is mounted on the rotating shaft, and a cam is fitted around the eccentric wheel. A push rod is mounted on the front mounting plate, and the cam is connected to the tail of the push rod via a pin. A sleeve is mounted at the front end of the push rod, and a pressure sensor is installed inside the sleeve. A pressure seat is mounted at the front end of the sleeve, and a spring is installed between the pressure seat and the pressure sensor. A pressure block is mounted on the surface of the pressure seat. This invention simulates the continuous working state of a dental drill to complete the life test of the micro-bearings inside the dental drill.

The utility model relates to the technical field of dental drill point detection, in particular to a dental drill point performance detection device for copper-doped hydroxyapatite. The utility model provides a dental drill point performance detection device for copper-doped hydroxyapatite, which can be used for detecting the shape regularity of a drill point and avoiding unstable operation or tooth damage caused by irregular shape. A dental drill point performance detection device for copper-doped hydroxyapatite comprises a bottom frame, a first motor and the like, and the first motor is connected to the upper left portion of the bottom frame. In the rotating process of the drill point, the pressure sensing ring is used for detecting the borne pressure, when the shape of the drill point is irregular, the pressure values detected by the pressure sensing ring are different, and the larger the change of the pressure values detected by the pressure sensing ring is, the more unstable the use of the drill point is. The effects that the shape regularity of the drill point can be detected, and unstable operation or tooth damage caused by the irregular shape is avoided are achieved.

An embodiment of the present invention provides a dental drill device comprising: a shank part coupled to a dental handpiece; a drill body part which is connected to a lower part of the shank part, rotates by the rotational force of the dental handpiece, and includes a plurality of spiral grooves arranged at equal intervals on an outer surface thereof and a plurality of lands formed between the spiral grooves, wherein alveolar bone particles generated during drilling of the alveolar bone are moved through the grooves; and a drill blade part formed at a lower part of the drill body part and configured to drill the alveolar bone when rotating, wherein the width of each of the lands is formed to be larger than or equal to 0.4 mm or smaller than or equal to 1 mm.

A dental handpiece capable of automatically cleaning scraps relates to the technical field of medical instruments and comprises a handpiece body handle, a handpiece head mounted at the left end of the handpiece body handle and a dental drill bit mounted on the handpiece head, a scrap cleaning ring movably matched with a drill handle of the dental drill bit is sleeved on the drill handle of the dental drill bit, and a positioning protruding column is fixed at the upper end of the scrap cleaning ring. The machine head is provided with a positioning hole allowing the positioning protruding column on the chip removing ring to be inserted therein, an inner lantern ring which is concentrically arranged is arranged in the chip removing ring in a sleeved mode, the chip removing ring is in sliding fit with the inner lantern ring, and the chip removing ring is provided with a brake pin used for braking the inner lantern ring. A plurality of elastic protruding blocks protruding inwards are arranged on the inner lantern ring, the number of the elastic protruding blocks is consistent with the number of threaded grooves in the dental drill bit, and a chip removing protruding head protruding inwards is fixed to the inner end of each elastic protruding block. According to the equipment provided by the utility model, the dental drill bit can be conveniently cleaned.

The utility model relates to the technical field of medical instruments, in particular to a high-stability and good-heat-dissipation dental drill which comprises a cutter body and a cutter handle. The cutter body is connected with the cutter handle, the cutter body comprises a cutter point at the end part of the cutter body, the cutter body is also provided with at least three groups of chip grooves, the chip grooves are arranged in a circumferential array by taking the center of the cutter body as an axis, and one section of each chip groove starts from the cutter point and is delayed to the tail part of the cutter body; a chip containing groove is formed in the tool nose, and the chip containing groove is communicated with the chip discharging groove. The conical drill bit is designed, the clearance angle of the circumferential cutting edge is designed to be 15-25 degrees, and the chip discharging grooves are additionally arranged, so that friction between residues and the cutter in a human body is reduced, heat dissipation can be better achieved, the precision of the cutter can be better improved, the machining stability can be well improved through the hollow dental drill, and medical negligence caused by the problem of the cutter can be reduced through the heat dissipation performance.

The design in question is for a dental drill. The product is used for dental treatment. The essence of the design is a combination of the shape and appearance of the product. 1.1) Perspective view; 1.2) Front view; 1.3) Rear view; 1.4) Left side view; 1.5) Right side view; 1.6) Top view; 1.7) Bottom view

One embodiment of the present invention relates to a dental drill apparatus inserted along a guide hole of a guide device installed in a patient's oral cavity. The dental drill apparatus comprises: a shank part coupled to a dental handpiece; a drill body part connected to a lower portion of the shank part and rotated by the rotational force of the dental handpiece and supported on the inner periphery of the guide hole; a drill blade part formed on a lower portion of the drill body part; and a stopper part formed between the drill body part and the shank part and having a diameter larger than the inner periphery of the guide hole, wherein the drill body part is movable along the inner periphery of the guide hole in an inclined state with respect to the central axis of the guide hole.

The invention discloses a method for automatically clamping a dental drill by a mechanical arm in an oral navigation positioning system, and belongs to the technical field of oral implant surgical robots. The method comprises a visual positioning stage, dental drill identification and selection, mechanical arm motion control, dental drill clamping operation and dental drill use and replacement. According to the method, a multi-stage calibration strategy is adopted, camera internal reference calibration is carried out firstly, and then hand-eye calibration is completed. The calibration parameters are adjusted and optimized through a bundle method, and the vision measurement precision is ensured. And an optimal path is calculated in real time by combining a mechanical arm kinematics model and an environment three-dimensional map. A speed look-ahead algorithm is adopted, stable and impact-free movement is ensured, an abnormal processing flow is provided, and a solution is preset for common faults (such as visual loss and clamping failure).

A dental drill and a method of surface treating a drill. The drill includes a shaft extending along a central longitudinal axis from a proximal end to a distal end. The proximal end of the shaft includes a shank adapted for connection to a rotary driver. The shaft further includes, distal of the shank, a fluted section including at least one flute extending along the longitudinal length of the fluted section. The method includes: acid etching at least a portion of the fluted section of the shaft in order to create a visible matted effect, subsequently electro-polishing at least the portion of the fluted section of the shaft in order to visibly reduce the matted effect and subsequently creating one or more visual marking within the portion of the fluted section of the shaft.

In some aspects, dental drill guides can include a body defining an outer surface and an interior hole for receiving and positioning a dental drill; a first end of the body defining a tapered lead-in portion of the outer surface; a second end of the body opposite the first end defining at least one lip feature configured to be gripped by a handling tool; an outer circumferentially formed recess around the outer surface; and a seating feature extending from the outer surface.

The utility model discloses a pretreatment cleaning device for a dental drill point, which relates to the technical field of dentistry and comprises a box body assembly, a clamping mechanism is arranged in the box body assembly, and a cleaning mechanism is arranged in the box body assembly. Other drill points except for the drill points during cleaning can be placed in the partition plate inside the box body, the cleaning mechanism enables the partition plate to naturally form two areas for placing the drill points before cleaning and after cleaning, the motor drives the first gear to rotate during cleaning so that the rotary drum can rotate, and meanwhile the first gear drives the second gear meshed with the first gear to rotate so that the drill points can be cleaned. The cleaning sponge on the surface of the rotating shaft can clean the drill point, the cleaning sponge can wrap the drill point, the surface of the cleaning sponge is tightly attached to a gap in the surface of the drill point, residues in the gap of the drill point are cleaned through rotation, and multiple enzymes in the cleaning sponge can decompose organic pollutants such as protein on the surface of the drill point; and after use, the cleaning sponge can be replaced, so that the adaptability of the device is improved.

The utility model discloses a top hanging type swing rod for an oral cavity treatment machine, which comprises a fixed base, a first swing rod is connected to the surface of the fixed base, a second swing rod is arranged at one end of the first swing rod, a silica gel sheath is connected between the first swing rod and the second swing rod, and a pneumatic switch is connected in the fixed base through a fixed support. A swing assembly is arranged in the first swing rod and the silica gel protective sleeve, the large spring drives the small spring sliding rod to slide and reset in the swing rod supporting rod after resetting and rebounding and makes contact with the pneumatic switch to enable the pneumatic switch to be turned off, the pneumatic switch is integrated on the swing rod, and gas on-off is directly controlled through the swing assembly of the swing rod; according to the utility model, gas driving control of treatment tools such as a dental drill or a spray gun connected to the swing rod can be realized only by holding the swing rod with a hand and performing normal swing action, and a gas control button or a valve at a fixed position on the treatment machine does not need to be distracted to find and operate, so that the convenience and the smoothness of operation are greatly improved, and the operation is relatively convenient.

The dental bun (1) comprises: - a proximal non-working portion (2) connectable to a tool for setting in rotation (S); a cylindrical diamond working portion (3) associated with the proximal non¬ working portion (2); - a conical diamond working portion (4) associated with the cylindrical diamond working portion (3) and having a decreasing diameter along the direction of departure from the cylindrical diamond working portion (3); - a non-diamond working lanceolate tip (5) associated with the conical diamond working portion (4).