Gutta-percha cutter
By designing the housing and heating needle structure of the gutta-percha cutter, the problem of needing to replace equipment in traditional gutta-percha cutters was solved, achieving efficient and dense filling of gutta-percha and simplifying the operation process.
Patent Information
- Application Number
- CN202422641619.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional gutta-percha cutters require changing the main unit or other heating pins during operation to cut and compact the gutta-percha, which makes operation cumbersome and affects the quality of gutta-percha filling.
A gutta-percha cutter was designed, comprising a housing, a PCB board, a heating needle, and a battery. The front end of the housing is equipped with a heating fixture and a metal fixture. The micro-spherical tip of the heating needle applies better pressure after cutting the gutta-percha, achieving dense filling of the gutta-percha and avoiding the need for additional equipment replacement.
This technology enables effective compaction of gutta-percha without changing equipment after cutting, improving the density of gutta-percha filling and operational efficiency.
Smart Images
Figure CN223569422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a dental gutta percha cutting technology field, especially in a kind of dental gutta percha cutter. BACKGROUND
[0002] Dental gutta percha cutter is a kind of instrument frequently used in stomatology department, is called dental gutta percha cutter or dental gutta percha fuse, is a kind of instrument for softening and / or cutting off dental gutta percha tip in oral cavity, for root canal filling, its main function is to cut off dental gutta percha tip, to adapt to different dental treatment needs.It can also trim dental gutta percha, and trim the dental gutta percha that is too long or uneven into ideal shape and length.
[0003] Segmenter is mainly used for cutting off and pressing dental gutta percha tip in root canal filling process, and the main machine of traditional segmenter only has a cutting head for cutting off, and other heating needles need to be replaced to press dental gutta percha tip to make filling more dense, which is troublesome in actual operation process and can affect the quality of dental filling. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a kind of dental gutta percha cutter, to solve the problem raised in the above background, can take out excess dental gutta percha when completing dental gutta percha cutting, and better press dental gutta percha, so that dental filling is more dense, without replacing main machine or other heating needle for compaction of dental gutta percha after completing dental gutta percha tip cutting.
[0005] To achieve the above object, the utility model provides a kind of dental gutta percha cutter shell, PCB board, heating needle and battery, the battery is installed in the tail of the shell, the PCB board is installed in the middle of the shell, the front end of the shell is bent and set, the front end of the shell is equipped with heating fixing piece, the heating fixing piece is equipped with fixed pressing plate, the opening end of the shell is equipped with needle head lock piece, the heating needle passes through the needle head lock piece, tail is inserted in the heating fixing piece, the front end of the shell is equipped with metal fixing piece, for fixing the heating needle, so that its angle is fixed, the fixed groove shape of the metal fixing piece and heating needle is plum blossom, and the end of the heating needle is provided with micro ball.
[0006] Optionally, the shell includes upper cover and lower cover, the side wall of the lower cover is provided with recess, the recess is provided with boss, the side wall of the upper cover is provided with buckle frame corresponding to the recess, and the upper cover and the lower cover are combined by the buckle of the boss and the buckle frame.
[0007] Optionally, the lower cover is provided with mounting groove, and the heating fixing piece is installed in the mounting groove.
[0008] Optionally, the fixing plate is provided with an inclined groove which can be attached to the surface of the heating fixing part, and the tail of the fixing plate is provided with a first step and a second step, and the first step and the second step are provided with a circular arc groove which can be attached to the surface of the heating fixing part.
[0009] Optionally, a limiting groove is arranged between the first step and the second step, and the heating fixing part is provided with a limiting table which is clamped in the limiting groove.
[0010] Optionally, the needle locking part comprises a fixing part and a locking part, the locking part is connected with the fixing part perpendicularly, the fixing part is provided with a countersunk screw which is fixed on the upper cover, and the locking part is exposed outside the shell.
[0011] Optionally, four notches are arranged at the front end of the locking part, and each notch is arranged at an equal angle, so that the front end of the locking part can be bent inward to lock and fix the heating needle.
[0012] Optionally, the metal fixing part is connected with the shell through a thread, the metal fixing part is provided with a baffle which divides the metal fixing part into two parts, the baffle is provided with a through hole, and the heating needle passes through the through hole.
[0013] Optionally, the baffle and the top of the metal fixing part form a containing groove, the heating needle is provided with a limiting head which is arranged in the containing groove, and the outer surface of the lower end of the limiting head is provided with a plurality of protrusions, the metal fixing part is provided with a groove corresponding to each protrusion, and the protrusion is clamped in the groove, so as to fix the angle of the heating needle.
[0014] Optionally, the shape of the heating needle is curved and bent from the card seat to approximate a semispherical shape, and the end of the heating needle is welded with a ball head, and the diameter of the ball head is 1.0mm-3.0mm.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] The utility model discloses a technical scheme's dental adhesive cutting device is through being equipped with the casing, PCB board, heating needle and battery, the battery is installed the tail part of casing, the PCB board is installed the middle part of casing, the front end of casing is bent and sets up, the front end of casing is equipped with heating fixed part, is equipped with fixed pressing plate on heating fixed part, the open end of casing is equipped with needle lock piece, heating needle passes needle lock piece, and the tail part is inserted in heating fixed part, the front end of casing is equipped with metal fixed part, is used for fixing heating needle, makes its angle fixed, the appearance of heating needle is semisphere, and the end head is welded with micro ball, the micro ball of heating needle end head can better pressurize dental adhesive when completing dental adhesive cutting, and dental adhesive filling is more compact, and after completing dental adhesive tip cutting, another host computer or other heating needle is replaced and is pressed to the dental adhesive. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the structure shown in these drawings.
[0018] Figure 1 It is the structural schematic diagram of an embodiment of the dental adhesive cutting device of the utility model;
[0019] Figure 2 It is the structural schematic diagram of the hidden lower cover of the dental adhesive cutting device of the utility model;
[0020] Figure 3 It is the structural schematic diagram of the hidden upper cover of the dental adhesive cutting device of the utility model;
[0021] Figure 4 It is the structural schematic diagram of the middle lower cover of the utility model; Figure 3
[0022] Figure 5 It is the structural schematic diagram of the middle heating fixed part of the utility model; Figure 2
[0023] Figure 6 It is the structural schematic diagram of the middle fixed pressing plate of the utility model; Figure 3
[0024] Figure 7 It is the structural schematic diagram of the middle needle lock piece of the utility model; Figure 2
[0025] Figure 8 It is the structural schematic diagram of the middle metal fixed part of the utility model; Figure 3
[0026] Figure 9 To Figure 3 A structure diagram of a heating needle.
[0027] BRIEF DESCRIPTION OF DRAWINGS
[0028]
[0029] The implementation, functional features and advantages of the utility model will be further described in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.
[0032] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0033] The utility model provides a kind of gutta percha cutter 100.
[0034] Please refer to Figures 1-9In an embodiment of the utility model, this dental adhesive cutting device 100 includes casing 10, PCB board 13, heating needle 60 and battery 14, battery 14 is installed in the tail of casing 10, PCB board 13 is installed in the middle of casing 10, the front end of casing 10 is bent and is arranged, the front end of casing 10 is equipped with heating fixing part 20, fixed pressing plate 30 is equipped on heating fixing part 20, the opening end of casing 10 is equipped with needle lock piece 40, heating needle 60 passes through needle lock piece 40, and the tail is inserted in heating fixing part 20, metal fixing part 50 is equipped with the front end of casing 10 for fixing heating needle 60, makes its angle fixed, and the end of heating needle 60 is provided with micro ball 63.
[0035] In the embodiment, the shape of the fixed groove of the metal fixing part 50 and the heating needle 60 is plum blossom, but is not limited to plum blossom, the casing 10 is provided with a power button 15, the power button 15 is connected to the PCB board 13 inside the casing 10, and is used for opening and closing the device, the tail end of the casing 10 is provided with a charging port 16 for charging the battery 14, the battery 14 is an existing storage battery, the PCB board 13 adopts the existing heating principle of the circuit, mainly by the master control single-chip microcomputer PCB board to the heating needle 60 heating through PWM certain duty ratio, while sampling the current of heating and converting into voltage signal ADIN1 to the master control, compared with the temperature voltage value confirmed by debugging to adjust the duty ratio of PWM, until the voltage of sampling reaches the set voltage value, so that the heating needle 60 is heated to the set temperature. Because the heating needle 60 has a certain heat accumulation effect, when the temperature rises to the set temperature value, the host will reduce a certain duty ratio according to the height of the preset temperature to maintain such temperature, and the micro ball 63 at the end of the heating needle can better press the dental adhesive when cutting the dental adhesive, so that the dental adhesive is filled more densely.
[0036] Wherein, the heating needle shape is approximately hemispherical from the curve bending of the card seat, the ball head is welded at the end of the heating needle, and the diameter of the ball head is 1.0mm-3.0mm.
[0037] In an embodiment of the utility model, the casing 10 includes an upper cover 11 and a lower cover 12, a recess 121 is formed in the side wall of the lower cover 12, a boss 122 is arranged at the recess 121, and a buckle frame 111 is arranged on the side wall of the upper cover 11 corresponding to the recess 121.
[0038] In the embodiment, the upper cover 11 and the lower cover 12 are combined by buckling the boss 122 and the buckle frame 111, which facilitates the disassembly of the upper cover 11 and the lower cover 12, and facilitates the disassembly when the internal circuit board needs to be repaired.
[0039] In an embodiment of the utility model, the lower cover 12 is equipped with the installation groove 123, the heating fixing 20 is installed in the installation groove 123, the fixed pressing plate 30 is equipped with the inclined groove 31, the inclined groove 31 can be attached the surface of heating fixing 20, the fixed pressing plate 30 tail is equipped with first step 32 and second step 33, first step 32 and second step 33 are all equipped with the circular arc groove 34 that can be attached the surface of heating fixing 20, so that the fixed pressing plate 30 can be intact with heating fixing 20 cooperation, and can effectively fix the location of heating fixing 20.
[0040] In the embodiment, the limit groove 35 is equipped between the first step 32 and the second step 33, the heating fixing 20 is equipped with the limit platform 21, the limit platform 21 is clamped in the limit groove 35, and the heating fixing 20 is positioned; it can be understood that the heating fixing 20 is installed in the installation groove 123, the fixed pressing plate 30 covers on the heating fixing 20, and is fixed on the lower cover 12 by screw, so that the heating fixing 20 will not displace.
[0041] In an embodiment of the utility model, the needle lock 40 includes fixed part 42 and locking part 41, the locking part 41 is vertically connected with the fixed part 42, the fixed part 42 is equipped with countersunk screw 44, is fixed on the upper cover 11 by the countersunk screw 44, the locking part 41 is exposed outside the shell 10, and the heating needle 60 is clamped.
[0042] In the embodiment, the four notches 43 are formed at the front end of the locking part 41, so that the front end of the locking part 41 has a certain deformation capacity, and each notch 43 is arranged at equal angles, similar to the expansion structure, the locking part 41 is externally threaded, by applying a sleeve ring, the front end of the locking part 41 can be bent inward to lock and fix the heating needle 60, and the stability of the heating needle 60 is maintained.
[0043] In an embodiment of the utility model, the tail end of the metal fixing 50 is internally threaded, and is connected between the shell 10 through threads, the metal fixing 50 is equipped with a baffle 51, which divides the metal fixing 50 into two parts, the baffle 51 is equipped with a through hole 53, the heating needle 60 passes through the through hole 53, and then the tail of the heating needle 60 passes through the needle lock 40 and is inserted into the heating fixing 20.
[0044] In the embodiment, the baffle 51 and the top of the metal fixing part 50 form a containing groove 52, the heating needle 60 is provided with a limiting head 61, the limiting head 61 is installed in the containing groove 52, the outer surface of the lower end of the limiting head 61 is provided with a plurality of protrusions 62, the metal fixing part 50 is provided with a groove 54 corresponding to each protrusion 62, the protrusion 62 is clamped in the groove 54, so that the angle of the heating needle 60 is fixed, the deflection of the heating needle 60 during the cutting of the dental cement can be avoided, and the operation and use are affected.
[0045] Working principle: the main control single-chip PCB board heats the heating needle 60 through PWM with a certain duty ratio, meanwhile, the current of the heating is sampled and converted into a voltage signal ADIN1 to the main control, compared with the temperature voltage value confirmed by debugging, the duty ratio of PWM is adjusted until the sampled voltage reaches the set voltage value, so that the heating needle 60 is heated to the set temperature. Since the heating needle 60 has a certain heat accumulation effect, when the temperature rises to the set temperature value, the main control will reduce a certain duty ratio according to the high and low of the preset temperature to maintain such temperature; the micro ball 63 at the end of the heating needle 60 can better press the dental cement when the cutting of the dental cement is completed, so that the dental cement is filled more densely, without replacing the host or other heating needles for compaction of the dental cement after the cutting of the dental cement is completed.
[0046] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, or the contents of the present application specification and drawings are included in the patent protection range of the present application.
Claims
1. A gutta-percha cutter, characterized in that, The device includes a housing, a PCB board, a heating needle, and a battery. The battery is mounted at the rear of the housing, and the PCB board is mounted in the middle of the housing. The front end of the housing is bent and has a heating fixing component at the front end. The heating fixing component has a fixing plate, and the open end of the housing has a needle locking component. The heating needle passes through the needle locking component and its tail end is inserted into the heating fixing component. The front end of the housing is fitted with a metal fixing component to fix the heating needle and fix its angle. The fixing groove for fixing the heating needle to the metal fixing component is shaped like a plum blossom. The end of the heating needle is provided with a micro sphere.
2. The gutta-percha cutter as described in claim 1, characterized in that: The housing includes an upper cover and a lower cover. The side wall of the lower cover has a recess and a protrusion. The side wall of the upper cover has a buckle corresponding to the recess. The upper cover and the lower cover are closed by the buckle between the protrusion and the buckle.
3. The gutta-percha cutter as described in claim 2, characterized in that: The lower cover has a mounting groove, and the heating fastener is installed in the mounting groove.
4. The gutta-percha cutter as described in claim 3, characterized in that: The fixed pressure plate has an inclined groove that can fit the surface of the heating fixture. The tail of the fixed pressure plate has a first step and a second step, both of which have arc grooves that can fit the surface of the heating fixture.
5. The gutta-percha cutter as described in claim 4, characterized in that: A limiting groove is provided between the first step and the second step, and a limiting platform is provided on the heating fixing component, the limiting platform being locked in the limiting groove.
6. The gutta-percha cutter as described in claim 2, characterized in that: The needle locking component includes a fixing part and a locking part. The locking part is perpendicularly connected to the fixing part. The fixing part is provided with a countersunk screw, which is used to fix the needle to the upper cover. The locking part is exposed outside the housing.
7. The gutta-percha cutter as described in claim 6, characterized in that: The locking part has four notches at its front end, and each notch is spaced at equal angles, so that the front end of the locking part can be bent inward to lock and fix the heating needle.
8. The gutta-percha cutter as claimed in claim 7, characterized in that: The metal fastener is connected to the housing by a thread. The metal fastener has a baffle that divides it into two parts. The baffle has a through hole through which the heating needle passes.
9. The gutta-percha cutter as described in claim 8, characterized in that: The baffle and the top of the metal fastener form a receiving groove. The heating needle is provided with a limiting head, which is installed in the receiving groove. The outer surface of the lower end of the limiting head is provided with several protrusions. The metal fastener has a groove corresponding to each protrusion. The protrusion is locked in the groove to fix the angle of the heating needle.
10. The gutta-percha cutter as claimed in claim 9, characterized in that: The heating needle is approximately hemispherical in shape after being bent at the card holder. A ball head is welded to the end of the heating needle, and the diameter of the ball head is 1.0mm to 3.0mm.