CN211583587U

CN211583587U - Novel gutta-percha point trimmer

Info

Publication number: CN211583587U
Application number: CN201921758750.XU
Authority: CN
Inventors: 吴勋贤; 瓦利德; 韦锋文; 徐佳兵; 吴坤优
Original assignee: Guilin Woodpecker Medical Instruments Co Ltd
Current assignee: Guilin Woodpecker Medical Instruments Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-29
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a novel gutta-percha point trimmer, which is characterized in that a dentist selects the gutta-percha point to be trimmed, determines the section size to be trimmed, then inserts the gutta-percha point into the positioning hole with corresponding specification size in a rotating way, and then pushes the slide block by hand, the slide block slides on the base, so that the blade cuts off the redundant part of the gutta-percha point, trims the gutta-percha point with required size, and the cutting section size of the gutta-percha point can be ensured to be accurate through the positioning holes with various specifications, and the blade is symmetrically arranged in the chute, on one hand, the bidirectional arbitrary cutting can be carried out along the base, on the other hand, the blade edge of the blade is not exposed, and the utility model is safer and more; the cutting of gutta-percha point is in go on the guide rail, when can reducing the cutting blade unnecessary area of contact can make the blade is in what paste on the guide rail is tighter, has promoted with this novel gutta-percha point trimmer's result of use, user experience feels better.

Description

Novel gutta-percha point trimmer

Technical Field

The utility model relates to the field of oral medical equipment, especially, relate to a novel gutta-percha point trimmer.

Background

In the root canal treatment, the cleaned, prepared root canal needs to be densely and three-dimensionally filled to eliminate dead space and prevent infiltration of external bacteria and contaminants, thereby preventing reinfection of the root canal system. In modern root canal filling technology, gutta-percha points are the most widely and mainstream root filling materials. Before filling, it is necessary to first select a gutta-percha point of an appropriate size according to the working length of the root canal of the patient and the size of the prepared root canal, and then to perform trimming to cut off the unnecessary portion.

In root canal filling, the ideal filling stop should coincide with the stop of the root canal preparation, typically at the physiological apical foramen or at the narrowest point of the apical apex. If the super-filling or the under-filling occurs, the effect of the root canal treatment will be affected. When overcharged, infectious agents such as bacteria are pushed into the apical foramen to cause periapical inflammation, and the root-filling material may cause foreign body reactions or toxic stimulation to periapical tissues. When the root canal is under-filled, periapical tissue fluid and exudate can seep back to the unfilled root canal, and the decomposition and propagation of the exudate can cause reinfection and failure of root canal therapy. Therefore, it is important to determine the length and taper dimensions of the gutta percha point prior to root filling.

At present, the existing gum point trimming tools in the market are various in types, and have various structural forms such as push-in type, push type and rotation type, but the using effect is not close to the human meaning, so that the user experience is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel gutta-percha point trimmer, the result of use that aims at solving the gutta-percha point trimmer among the prior art is not nearly satisfactory, and user experience feels poor technical problem.

In order to achieve the purpose, the novel gutta-percha point trimmer adopted by the utility model comprises a base, a sliding block component and a limiting part, wherein at least one guide rail is arranged on the base, and positioning holes of different specifications penetrating through each guide rail and the base, wherein the sliding block assembly comprises a sliding block and a blade, the sliding block is in clearance fit with the base, the sliding block slides along the base, a counter bore and at least one sliding chute are arranged on the sliding block, the sliding groove is in clearance fit with the guide rail, the number of the blades is at least two, each blade is fixedly connected with the sliding block, and is positioned inside each sliding chute, and each sliding chute is provided with two blades, and the two blades are symmetrically arranged along the length extension direction of the guide rail, and the limiting parts are fixedly connected with the base and positioned at two ends of the base in the length extension direction.

Each positioning hole is provided with a guide cavity and a measuring cavity, the guide cavity is a cylindrical cavity, and the measuring cavity is a conical cavity.

Wherein each blade is made of stainless steel materials, and the thickness of each blade is 0.1-0.2 mm.

The slider is provided with X-shaped crossed chutes, the blades are fixedly connected with the chutes respectively, and the side surfaces of the cutting edges of the blades are tightly attached to the horizontal plane of the guide rail and form an included angle of 25 degrees with the horizontal plane of the guide rail.

And one end of the sliding block, which is far away from the guide rail, is arranged in a concave arc structure.

The sliding block assembly further comprises an elastic piece and a supporting piece, one end of the elastic piece is fixedly connected with the sliding block, the other end of the elastic piece is fixedly connected with the supporting piece, and the elastic piece and the supporting piece are both located in the counter bore.

The outer surface wall of the base is provided with aperture marks and scale grooves, the aperture marks are located on one sides of the positioning holes, each positioning hole corresponds to one aperture mark, and the scale grooves are located on one sides of the guide rails respectively.

The base is provided with one guide rail, the sliding block is provided with one sliding groove, the sliding groove is provided with two blades in an inclined mode, the positioning holes of different specifications are arranged in a straight line along the length extending direction of the base.

The base is provided with one guide rail, the sliding block is provided with one sliding groove, the sliding groove is provided with two blades in an inclined mode, the positioning holes with different specifications are divided into two groups, the two groups of positioning holes are arranged at two ends of the base respectively, the two groups of positioning holes are arranged in a straight line along the length extending direction of the base, and gaps are reserved between the two groups of positioning holes.

The base is provided with two guide rails, the sliding block is provided with two sliding grooves, each sliding groove is provided with two blades, each sliding groove is in clearance fit with the corresponding guide rail, the positioning holes of different specifications are divided into two groups, and the two groups of positioning holes are arranged side by side along the width extending direction of the base.

The utility model discloses a novel gutta-percha point trimmer's beneficial effect embodies: the method comprises the following steps that a dentist selects a gutta-percha point needing to be trimmed, the size of a section needing to be trimmed is determined, the gutta-percha point is inserted into a positioning hole with a corresponding specification size in a rotating mode, then the sliding block is pushed by the hand and slides on the base, and then the blade cuts off the redundant part of the gutta-percha point, and the gutta-percha point with the required size is trimmed. The novel gutta-percha point trimmer is simple and convenient to operate and high in efficiency, the cutting section size of the gutta-percha point can be guaranteed to be accurate through the positioning holes with different specifications, and the blades are symmetrically arranged in the sliding grooves, so that on one hand, the bidirectional arbitrary cutting can be carried out along the base, on the other hand, the blade edges of the blades are not exposed, fingers can not touch the blades, and the gutta-percha point trimmer is safer and more reliable; in addition, the plane of the guide rail protrudes out of the plane of the base, so that the height of the guide rail is increased independently, the gutta-percha point is cut on the guide rail, unnecessary contact area of the blade can be reduced when the cutting is carried out, the blade can be enabled to be attached to the guide rail more tightly, and therefore the using effect of the novel gutta-percha point trimmer is improved, and the user experience feeling is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of embodiment 1 of the novel gutta-percha point dresser of the present invention.

Fig. 2 is a schematic bottom structure view of embodiment 1 of the novel gutta-percha point dresser of the present invention.

Fig. 3 is a schematic structural view of embodiment 2 of the novel gutta-percha point trimmer of the present invention.

Fig. 4 is a schematic bottom structure view of embodiment 2 of the novel gutta-percha point trimmer of the present invention.

Fig. 5 is a schematic view of the overall structure of the slider assemblies of embodiment 1 and embodiment 2 of the present invention.

Fig. 6 is a schematic view of the internal structure of the slider assembly according to embodiment 1 and embodiment 2 of the present invention.

Fig. 7 is a schematic structural view of embodiment 3 of the novel gutta-percha point dresser of the present invention.

Fig. 8 is a schematic bottom structure view of embodiment 3 of the novel gutta percha point dresser of the present invention.

Fig. 9 is a schematic view of the overall structure of a slider assembly according to embodiment 3 of the present invention.

Fig. 10 is a schematic view of the internal structure of a slider assembly according to example 3 of the present invention.

Fig. 11 is a schematic view of the internal structure of positioning holes of different specifications in embodiment 1, embodiment 2, and embodiment 3 of the present invention.

100-novel gutta-percha point trimmer, 10-base, 11-guide rail, 12-positioning hole, 121-guiding cavity, 122-measuring cavity, 13-aperture mark, 14-scale groove, 20-slide block component, 21-slide block, 211-counter bore, 212-slide groove, 213-slide groove, 22-blade, 23-elastic component, 24-abutting component and 30-limiting component.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

Referring to fig. 1, 2, 5, 6 and 11, the present invention provides a novel gutta-percha point trimmer 100, which includes a base 10, a slider assembly 20 and a limiting member 30, wherein the base 10 is provided with at least one guide rail 11 and a positioning hole 12 penetrating through each guide rail 11 and the base 10, the slider assembly 20 includes a slider 21 and two blades 22, the slider 21 is in clearance fit with the base 10, the slider 21 slides along the base 10, the slider 21 is provided with a counter bore 211 and at least one sliding slot 212, the sliding slot 212 is in clearance fit with the guide rail 11, the number of the blades 22 is at least two, each blade 22 is fixedly connected with the slider 21 and located inside each sliding slot 212, and each sliding slot 212 is provided with two blades 22, and the two blades 22 are symmetrically arranged along the length extending direction of the guide rail 11, the limiting members 30 are fixedly connected to the base 10 and located at two ends of the base 10 in the length extending direction.

Further, each positioning hole 12 has a guide cavity 121 and a measurement cavity 122, the guide cavity 121 is a cylindrical cavity, and the measurement cavity 122 is a conical cavity.

Further, each of the blades 22 is made of a stainless steel material and has a thickness of 0.1mm to 0.2 mm.

Furthermore, the slider 21 is provided with oblique slots 213 intersecting in an X shape, each blade 22 is fixedly connected with the oblique slots 213, and the side surface of the cutting edge of each blade 22 is tightly attached to the horizontal surface of the guide rail 11 and forms an included angle of 25 degrees with the horizontal surface of the guide rail 11.

Further, one end of the sliding block 21, which is far away from the guide rail 11, is arranged in a concave arc-shaped structure.

Further, the slider assembly 20 further includes an elastic member 23 and a holding member 24, one end of the elastic member 23 is fixedly connected with the slider 21, the other end of the elastic member 23 is fixedly connected with the holding member 24, and both the elastic member 23 and the holding member 24 are located in the counterbore 211.

Further, the outer surface wall of the base 10 is provided with an aperture mark 13 and a scale groove 14, the aperture mark 13 is located on one side of the positioning hole 12, each positioning hole 12 corresponds to one aperture mark 13, and the scale groove 14 is located on one side of each guide rail 11.

Further, the base 10 is provided with one guide rail 11, the slider 21 is provided with one sliding groove 212, the sliding groove 212 is provided with two blades 22 in an inclined manner, and the positioning holes 12 of different specifications are arranged in a straight line along the length extending direction of the base 10.

In this embodiment, the base 10 is provided with one guide rail 11, the slider 21 is provided with one sliding chute 212, the sliding chute 212 is provided with two blades 22 in an inclined manner, the sliding chute 212 is in clearance fit with the guide rail 11, and the positioning holes 12 of different specifications are arranged in a straight line along the length extending direction of the base 10. The dentist selects the gutta-percha point needing to be trimmed, determines the section size needing to be trimmed, and then rotationally inserts the gutta-percha point into the positioning hole 12 with the corresponding specification size, wherein the specification of the positioning hole 12 is 18, and the models are respectively '20', '25', '30', '35', '40', '45', '50', '55', '60', '65', '70', '80', '90', '100', '110', '120', '130', '140', and can basically meet the trimming of all specifications of the gutta-percha points on the market. Medical personnel's accessible is observed on locating hole 12 one side aperture sign 13 can be directly perceived the specification of judging this locating hole 12, and then judge whether insert this specification with the gutta-percha point locating hole 12, every all have on the locating hole 12 direction chamber 121 with measure the chamber 122, direction chamber 121 is cylindrical cavity, it is conical cavity to measure the chamber 122. For example: the aperture indication 13 is "20" or "25" and indicates the size of the diameter d of the measuring chamber 122 on the bottom surface, and the aperture indication 13 is equal to 100 times the diameter d in number, i.e., "20" indicates that d is equal to 0.2mm, and "25" indicates that d is equal to 0.25 mm. Because many gutta-percha point trimmers on the market are not conical cavities due to the processing difficulty, the measuring cavity 122 is replaced by a thin cylindrical cavity, but the gutta-percha points are tapered, if the measuring cavity 122 is a cylindrical cavity, when the measuring cavity 122 is inserted into the measuring cavity 122 for trimming, the actually cut section diameter is smaller than the theoretically trimmed section diameter, and inevitable errors exist, but the measuring cavity 122 is processed by a customized profiling cutter, so that the size is accurate, the precision is high, and the cutting section size can be ensured to be accurate.

After the gutta-percha point is inserted into the positioning hole 12 with the corresponding specification, the sliding block 21 is pushed by hand, so that the sliding block 21 slides on the base 10, the two blades 22 symmetrically arranged on the sliding groove 212 cut off the redundant part of the gutta-percha point, and the gutta-percha point with the required size is trimmed, wherein the blade 22 is a stainless steel blade, the thickness of the blade is 0.1 mm-0.2 mm, preferably the thickness of the blade 22 is 0.1mm, and the blade 22 has the advantages of no ratio, high hardness and wear resistance. In addition, the slide block 21 is provided with X-shaped crossed chutes 213, each blade 22 is fixedly connected with the chute 213 through anaerobic adhesive, and the anaerobic adhesive can resist high temperature of more than 200 ℃, so that the gutta-percha tip trimmer can be subjected to high-temperature sterilization treatment. The side surface of the cutting edge of each blade 22 is tightly attached to the horizontal surface of the guide rail 11, and forms an included angle of 25 degrees with the horizontal surface of the guide rail 11, and the plane of the guide rail 11 protrudes out of the plane of the base 10, so that the blade is independently heightened, the cutting of the gutta-percha point is performed on the guide rail 11, the unnecessary contact area of the blade 22 during cutting can be reduced, the blade 22 can be tightly attached to the guide rail 11, and therefore, during operation, the blade 22 can cut off (equivalently, shovel off) the exposed gutta-percha point along the bottom surface of the positioning hole 12, and the cutting section is smooth. And because the blade 22 is thin and sharp, the gutta-percha point is not squashed during cutting, and the cutting section is still circular. Through the symmetrical arrangement of the two blades 22, the sliding block 21 can realize cutting no matter which direction the sliding block moves, and on the other hand, the blade of the blade 22 is not exposed, so that fingers cannot touch the blade 22, and the cutting machine is safer and more reliable; the limiting member 30 is a limiting screw, and can limit the movement of the slider 21, so as to prevent the slider 21 from sliding off the base 10.

The end, far away from the guide rail 11, of the sliding block 21 is arranged in a concave arc structure, so that a dentist can more comfortably and reliably press and move the sliding block 21, the elastic piece 23 is a compression spring, the abutting piece 24 is a steel ball, the sliding block 21 is in clearance fit with the base 10, in the design process, the sliding block 21 is pre-tightened by adopting a small compression spring and the steel ball, the compression spring is placed in the counter bore 211 on the sliding block 21, and the steel ball is placed on the compression spring. The amount of compression, i.e., pre-load, of the spring is determined by the depth of the counterbore 211. When the slide block 21 is mounted on the base 10, the spring and the steel ball are confined in the counterbore 211 of the slide block 21, and the steel ball is pressed on the plane of the base 10 under the action of the spring. Of course, the compression amount of the spring is small, so the pretightening force is small, only the sliding block 21 is ensured not to freely slide on the base 10, and the smoothness of movement in work is not influenced. When the length of the gutta-percha point needs to be measured, the gutta-percha point can be placed in the scale groove 14, and the length size of the gutta-percha point can be easily measured through the scale groove 14 on the base 10.

The base 10 with slider 21 all adopts the aluminum alloy material and passes through oxidation treatment, and then novel gutta-percha point trimmer 100 is durable, can high temperature disinfection and sterilization, and the quality is light simultaneously, and the colour has multiple choice, and the outward appearance is pleasing to the eye, and the overall dimension of whole gutta-percha point trimmer is small and exquisite slim and graceful simultaneously, one hand can be operated, uses simple and conveniently, and one person can accomplish the repairment of gutta-percha point, and work efficiency is high.

As can be seen from the above description, the using effect of the novel gutta-percha point trimmer 100 is improved, and the user experience is better.

Example 2

Referring to fig. 3, 4, 5, 6 and 11, the present invention provides a novel gutta-percha point trimmer 100, which includes a base 10, a slider assembly 20 and a limiting member 30, wherein the base 10 is provided with at least one guide rail 11 and a positioning hole 12 penetrating through each guide rail 11 and the base 10, the slider assembly 20 includes a slider 21 and two blades 22, the slider 21 is in clearance fit with the base 10, the slider 21 slides along the base 10, the slider 21 is provided with a counter bore 211 and at least one sliding slot 212, the sliding slot 212 is in clearance fit with the guide rail 11, the number of the blades 22 is at least two, each blade 22 is fixedly connected with the slider 21 and is located inside each sliding slot 212, and each sliding slot 212 is provided with two blades 22, and the two blades 22 are symmetrically arranged along the length extending direction of the guide rail 11, the limiting members 30 are fixedly connected to the base 10 and located at two ends of the base 10 in the length extending direction.

Further, be equipped with one on the base 10 the guide rail 11, be equipped with one on the slider 21 the spout 212, it is provided with two to slope on the spout 212 the blade 22, different specifications the locating hole 12 divide into two sets ofly, and two sets of the locating hole 12 sets up respectively the both ends of base 10, and two sets of the locating hole 12 is followed the length extending direction of base 10 is the form setting of a word, and is two sets of leave the clearance between the locating hole 12.

In this embodiment, the dentist selects the gutta-percha point to be trimmed, determines the section size to be trimmed, and then inserts the gutta-percha point into the positioning hole 12 with corresponding specification size by rotating, wherein the specification of the positioning hole 12 is 18, and the models are respectively "20", "25", "30", "35", "40", "45", "50", "55", "60", "65", "70", "80", "90", "100", "110", "120", "130", "140", which can basically meet the trimming of all specifications of gutta-percha points on the market. Medical personnel's accessible is observed on locating hole 12 one side aperture sign 13 can be directly perceived the specification of judging this locating hole 12, and then judge whether insert this specification with the gutta-percha point locating hole 12, every all have on the locating hole 12 direction chamber 121 with measure the chamber 122, direction chamber 121 is cylindrical cavity, it is conical cavity to measure the chamber 122. For example: the aperture indication 13 is "20" or "25" and indicates the size of the diameter d of the measuring chamber 122 on the bottom surface, and the aperture indication 13 is equal to 100 times the diameter d in number, i.e., "20" indicates that d is equal to 0.2mm, and "25" indicates that d is equal to 0.25 mm. Because many gutta-percha point trimmers on the market are not conical cavities due to the processing difficulty, the measuring cavity 122 is replaced by a thin cylindrical cavity, but the gutta-percha points are tapered, if the measuring cavity 122 is a cylindrical cavity, when the measuring cavity 122 is inserted into the measuring cavity 122 for trimming, the actually cut section diameter is smaller than the theoretically trimmed section diameter, and inevitable errors exist, but the measuring cavity 122 is processed by a customized profiling cutter, so that the size is accurate, the precision is high, and the cutting section size can be ensured to be accurate.

The base 10 is provided with one guide rail 11, the sliding block 21 is provided with one sliding groove 212, the sliding groove 212 is provided with two blades 22 in an inclined manner, the sliding groove 212 is in clearance fit with the guide rail 11, the positioning holes 12 of different specifications are divided into two groups, the two groups of positioning holes 12 are respectively arranged at two ends of the base 10, the two groups of positioning holes 12 are arranged in a straight line along the length extending direction of the base 10, and a clearance is reserved between the two groups of positioning holes 12. It can be seen that the structure of the novel gutta percha point trimmer 100 according to embodiment 2 is different from the structure of the novel gutta percha point trimmer 100 according to embodiment 1 in that the base 10 is different and the rest of the structure is the same, and the length of the base 10 according to embodiment 2 is longer than that of the base 10 according to embodiment 1, and the positioning holes 12 of 18 different specifications are equally divided into two groups and respectively machined at both ends of the base 10 to leave a middle part. The advantage of this design is when single-hand operation this gutta-percha point trimmer, can have enough parts to hold in the hand, hold more firmly to can the reversal, select arbitrary locating hole 12 work. And the aperture marks 13 of two groups of positioning holes 12 are symmetrical, even if the direction is turned, the aperture marks 13 of the working group of positioning holes 12 are still normally displayed and are not turned over, so that the operation is more intuitive.

Example 3

Referring to fig. 7, 8, 9, 10 and 11, the present invention provides a novel gutta-percha point trimmer 100, which includes a base 10, a slider assembly 20 and a limiting member 30, wherein the base 10 is provided with at least one guide rail 11 and a positioning hole 12 penetrating through each guide rail 11 and the base 10, the slider assembly 20 includes a slider 21 and two blades 22, the slider 21 is in clearance fit with the base 10, the slider 21 slides along the base 10, the slider 21 is provided with a counter bore 211 and at least one sliding slot 212, the sliding slot 212 is in clearance fit with the guide rail 11, the number of the blades 22 is at least two, each blade 22 is fixedly connected with the slider 21 and located inside each sliding slot 212, and each sliding slot 212 is provided with two blades 22, and the two blades 22 are symmetrically arranged along the length extending direction of the guide rail 11, the limiting members 30 are fixedly connected to the base 10 and located at two ends of the base 10 in the length extending direction.

Further, the outer surface wall of the base 10 is provided with an aperture mark 13 and a scale groove 14, the aperture mark 13 is located on one side of the positioning hole 12, each positioning hole 12 corresponds to one aperture mark 13, and the scale groove 14 is located on one side of each guide rail 11. Be equipped with two on the base 10 the guide rail 11, be equipped with two on the slider 21 the spout 212, every it is provided with two to slope on the spout 212 the blade 22, every spout 212 and corresponding every guide rail 11 clearance fit, different specifications the locating hole 12 divide into two sets ofly, and is two sets of locating hole 12 is followed the width extending direction of base 10 sets up side by side.

And through be equipped with two on the base 10 the guide rail 11, be equipped with two on the slider 21 the spout 212, every spout 212 slope be provided with two the blade 22, every spout 212 and corresponding every guide rail 11 clearance fit, the locating hole 12 of different specifications divide into two sets of, two sets of locating hole 12 sets up side by side along the width extending direction of base 10. It can be seen that the structure of the novel gutta-percha point dresser 100 according to example 3 is different from the structure of the novel gutta-percha point dresser 100 according to example 1 in that: the 18 positioning holes 12 with different specifications are equally divided into two groups, each group is 9, two rows are designed side by side and are arranged on the base 10, so that the base 10 in the embodiment 3 is shortest in the length direction and widest in the width direction. In addition, because the embodiment has enough space in the width direction, the two scale grooves 14 are designed and are symmetrically arranged, so that the proper scale grooves 14 can be selected to carry out intuitive measurement no matter which hand holds the trimmer and which hand holds the gutta-percha point when a dentist operates the dental appliance. Because the embodiment has two guide rails 11, that is, two sliding grooves 212, and each sliding groove 212 has two symmetrically arranged blades 22, and there are four blades 22 in total, the elastic member 23 and the holding member 24 are installed between the two sliding grooves 212, that is, between the two guide rails 11, so that the pre-tightening effect is more balanced. The limiting members 30 are disposed at both ends of the two guide rails 11 in the length direction.

From the examples 1, 2 and 3, the innovative points of the new gutta-percha point trimmer 100 are as follows:

collect and measure and cut off function in an organic whole, easy operation, convenience, efficient, and small and exquisite slim and graceful.

The stainless steel blade is adopted, the thickness is only 0.1mm, the sharpness is zero, the blade 22 is obliquely installed and is tightly attached to the surface of the base 10, the gutta-percha point cannot be flattened during cutting, and the smoothness and the roundness of a cutting section are guaranteed.

The blades 22 are obliquely arranged inside the sliding block 21 and are symmetrically arranged, and can cut randomly along the base 10 in two directions.

The blade 22 is built in the slider 21 and can not be touched by fingers, so that the use is safe and reliable.

The sliding block 21 and the base 10 are in clearance fit, and slight pre-tightening is realized through a compression spring and a steel ball, so that the sliding block 21 cannot slide in a free state, but can easily move during working.

The positioning hole 12 is composed of the guide cavity 121 and the measurement cavity 122, and the measurement cavity 122 is formed by processing a special profiling tool, so that the size is accurate.

Therefore, the novel gutta-percha point trimmer 100 is designed and produced with high precision, can effectively ensure the trimming precision of the gutta-percha point, and enables the root canal to be filled more easily and more tightly. The gutta-percha point can reduce the waste of resources by trimming. The tip of the gutta-percha point can be kept in a round shape after being cut by the gutta-percha point trimmer, so that the filling is tighter. Can be sterilized at high temperature and reused. Accurate size and various specifications. The cutting can be realized by slightly pushing, and the cutting tool is simple and easy to use; the metal material, durable difficult wearing and tearing, and then promote the result of use, user's experience feels better.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A novel gutta-percha point trimmer, which is characterized in that,

including base, slider assembly and locating part, be provided with at least one guide rail on the base, and run through every the guide rail with the locating hole of the different specifications of base, slider assembly includes slider and blade, the slider with base clearance fit, the slider is followed the base slides, be provided with counter bore and at least one spout on the slider, the spout with guide rail clearance fit, the quantity of blade is two at least, every the blade with slider fixed connection, and be located every all be provided with two on the spout the blade, and two the blade is followed guide rail length extending direction symmetry sets up, the locating part with base fixed connection, and be located the both ends of the length extending direction of base.

2. The novel gutta-percha point trimmer as in claim 1,

every all have direction chamber and measurement chamber on the locating hole, the direction chamber is cylindrical cavity, the measurement chamber is conical cavity.

3. The novel gutta-percha point trimmer as in claim 2,

each blade is made of stainless steel materials, and the thickness of each blade is 0.1 mm-0.2 mm.

4. The novel gutta-percha point trimmer as in claim 3,

the slider is provided with X-shaped crossed chutes, each blade is fixedly connected with the chute, and the side surface of the cutting edge of each blade is tightly attached to the horizontal plane of the guide rail and forms an included angle of 25 degrees with the horizontal plane of the guide rail.

5. The novel gutta-percha point trimmer as in claim 4,

one end of the sliding block, which is far away from the guide rail, is arranged in a concave arc structure.

6. The novel gutta-percha point trimmer as in claim 5,

7. The novel gutta-percha point trimmer as in claim 6,

8. The novel gutta-percha point trimmer as in claim 7,

9. The novel gutta-percha point trimmer as in claim 7,

the base is provided with one guide rail, the sliding block is provided with one sliding groove, the sliding groove is obliquely provided with two blades, the positioning holes with different specifications are divided into two groups, the two groups of positioning holes are respectively arranged at two ends of the base, the two groups of positioning holes are arranged in a straight line along the length extending direction of the base, and a gap is reserved between the two groups of positioning holes.

10. The novel gutta-percha point trimmer as in claim 7,

the base is provided with two guide rails, the slider is provided with two sliding grooves, each sliding groove is provided with two blades, each sliding groove is in clearance fit with the corresponding guide rail, the positioning holes of different specifications are divided into two groups, and the two groups of positioning holes are arranged side by side along the width extending direction of the base.