An improved gutta-percha tip trimmer

Abstract

The utility model provides an improved gutta-percha tip trimmer, which includes a long strip base, a groove is provided on the front of the long strip base in the length direction, a row of countersunk holes is provided in the groove, a slider is slidably installed on the long strip base along the length direction, and a first length measuring groove and a second length measuring groove with a scale are provided on the front of the long strip base; a spring cutter is provided on one of the short sides of the long strip base; a blade slot is provided on the slider at the groove position, a second blade is detachably installed in the blade slot, a threaded hole is provided on the upper surface of the slider that penetrates downward to the blade slot, and a locking knob is threadedly installed in the threaded hole. The improved gutta-percha tip trimmer provided by the utility model integrates the functions of a measuring ruler and scissors, and has the advantages of good effect, precision, high efficiency, and convenient carrying. It is not only suitable for dental clinics, but also suitable for oral hospitals, laboratories and other places, and has broad application prospects.

Description

Technical Field

[0001] The utility model relates to a surgical instrument for root canal treatment, in particular to an improved gutta-percha tip trimmer. Background Art

[0002] During root canal treatment, a length measuring ruler is often needed to measure the length of root canal files, nickel-titanium files, and gutta-percha tips. Gutta-percha tips are used as root canal filling materials. During the production process of the materials, the size of the tip of the gutta-percha tip may not match the actual number, and the apical foramen is mostly irregular in shape. Therefore, the gutta-percha tips often need to be trimmed to match the apical foramen. For ease of operation, the excess gutta-percha on the head will be cut off in advance before being inserted into the root canal. In clinical practice, conventional measuring rulers are often used for length measurement, and scissors are used to trim the gutta-percha tips. This method of using tools is more complicated and has certain defects.

[0003] After long-term use, we found that the existing gutta-percha tip trimmer has the following disadvantages:

[0004] 1) The existing gutta-percha tip trimmer has a blade that is not replaceable and cannot be used if the blade is broken or blunt;

[0005] 2) A length measuring ruler with a slot only has a length measuring function but does not have a function of cutting it to a desired length. Utility Model Content

[0006] The utility model provides an improved gutta-percha tip trimmer that integrates the functions of a measuring ruler and scissors, and has the advantages of good effect, precision, high efficiency, and convenient carrying. The specific scheme is as follows:

[0007] The improved gutta-percha tip trimmer comprises a long strip base, a groove is provided on the front side of the long strip base in the length direction, a row of countersunk holes with gradually increasing apertures are provided in the groove, and a slider is slidably mounted on the long strip base along the length direction.

[0008] The front side of the long strip base is provided with a first length measuring groove and a second length measuring groove with scales on the left and right sides;

[0009] A spring cutter is provided on one of the short sides of the long strip base, and the spring cutter is provided with a lower shell and an upper shell, the lower shell and the upper shell are higher than the front of the long strip base, a cutting notch is left between the lower shell and the upper shell, the cutting notch is connected to the first length measuring groove, a first blade and a spring are provided in the upper shell, the first blade is fixedly connected to a sliding handle externally arranged on the side of the upper shell, an opening is provided at one end of the upper shell close to the cutting notch, one end of the first blade is connected to the spring, and the sliding handle drives the other end of the first blade in the upper shell to extend outward from the opening;

[0010] The slider is provided with a blade slot at the position of the groove, in which a second blade is detachably installed, and an upper surface of the slider is provided with a threaded hole penetrating downward to the blade slot, in which a locking knob is threadedly installed.

[0011] Furthermore, the elongated base and the sliding block are made of metal that is integrally formed.

[0012] Furthermore, the scale of the ruler is 0 to 30 mm, with an accuracy of 1 mm.

[0013] Furthermore, the blade slot is arranged in the sliding block at an angle along the direction of the groove and forms an acute angle with the groove.

[0014] Furthermore, the length of the second blade is not less than the length of the blade slot, and the width of the second blade is not greater than the width of the groove.

[0015] The advantages of the utility model are:

[0016] 1) A length measuring groove with a scale of 0 at the top grid is added at one end of the trimmer, and a spring cutter with a cutting function is designed on the outer edge of the side to cut off the excess head of the gutta-percha tip, and the gutta-percha tip after cutting is the required length;

[0017] 2) The blade of the spring cutter adopts a hidden design. When not in use, the first blade automatically retracts into the upper shell to prevent the first blade from being exposed and cutting the human body;

[0018] 3) The second blade for cutting off the tip of the gutta-percha point is detachable. When the second blade becomes blunt and causes unsmooth cutting, it can be disassembled and replaced with a new second blade to ensure cutting.

[0019] 4) The gutta-percha tip trimmer of the utility model has a simple structure and is easy to operate. It can measure, trim and cut the length of the gutta-percha tip in one go, greatly improving work efficiency and reducing the workload of medical staff.

[0020] The utility model provides an improved gutta-percha tip trimmer, which has the advantages of simple structure, convenient operation, good effect, precision, high efficiency, and convenient carrying, and solves the defects of the gutta-percha tip trimmer in the prior art, and has good market prospects and application value. The utility model is not only suitable for dental clinics, but also for oral hospitals, laboratories and other places, and has a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A front view of an improved gutta-percha tip trimmer provided by the utility model;

[0023] Figure 2 A schematic diagram of placing the gutta-percha tip into the first length measuring slot on the left;

[0024] Figure 3 This is a schematic diagram of the gutta-percha tip being cut off using the spring cutter on the left;

[0025] Figure 4 for Figure 1 A partial side view of

[0026] Figure 5 A cross-sectional view of the internal structure of a slider having a blade slot and a threaded hole;

[0027] Figure 6 This is a schematic diagram of using a locking knob to lock the second blade in the slide. DETAILED DESCRIPTION

[0028] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0029] In order to thoroughly understand the present invention, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0030] Reference Figure 1As shown, the utility model provides an improved gutta-percha tip trimmer, which includes a long strip base 100, a groove 101 is provided on the front of the long strip base 100 in the length direction, a row of countersunk holes 102 with gradually increasing apertures are provided in the groove 101, and a slider 200 is slidably installed on the long strip base 100 along the length direction. In an optional embodiment, the long strip base 100 and the slider 200 are respectively made of one-piece metal to ensure their strength. In one embodiment, a total of 18 countersunk holes 102 from 20# to 140# are provided in the groove 101 as gutta-percha tip holes, with an accuracy of 0.01mm.

[0031] The front of the long strip base 100 is provided with a first length measuring groove 110 and a second length measuring groove 120 with a scale on the left and right sides. The scale of the scale is 0 to 30 mm, and the accuracy is 1 mm. As shown in the figure, the first length measuring groove 110 and the second length measuring groove 120 extend to the short sides of the left and right sides of the long strip base 100 respectively, and no matter how long the gutta-percha tip is, it can be placed in the measuring groove as a whole. The 0 degree scale position of the first length measuring groove 110 is located at the free edge of the long strip base 100, that is, the starting position of the scale of the first length measuring groove 110 starts from the left edge of the long strip base 100. There is a hollow groove 121 on the right side of the second length measuring groove 120, and an indicator sheet is inserted into the hollow groove 121, and the starting position of the scale of the second length measuring groove 120 starts from the hollow groove 121.

[0032] A spring cutter 300 is provided on the short side of the left side of the long strip base 100, and the spring cutter 300 is located at the 0 degree scale position of the first length measuring groove 110. The spring cutter 300 is provided with a lower shell 310 and an upper shell 320. The lower shell 310 and the upper shell 320 are higher than the front of the long strip base 100. A cutting notch 301 higher than the front of the long strip base 100 is left between the lower shell 310 and the upper shell 320. The cutting notch 301 is connected to the first length measuring groove 110. A first blade 321 and a spring 322 are provided in the upper shell 320. The first blade 321 is fixedly connected to a sliding handle 323 externally arranged on the side of the upper shell 320. An opening is provided at one end of the upper shell 320 close to the cutting notch 301. One end of the first blade 321 is connected to the spring 322. The sliding handle 323 drives the other end of the first blade 321 in the upper shell 320 to extend outward from the opening.

[0033] The utility model can cut the gutta-percha tip to a desired length by means of a spring cutter 300 arranged at one end of the long strip base 100. Figure 2-3As shown, the cutting process is as follows: the gutta-percha tip 1 to be cut is placed horizontally in the first length measuring groove 110, and the position of the gutta-percha tip is adjusted so that the top end is located at the desired length scale position after cutting. For example, if the gutta-percha tip needs to be cut to 25 mm, the front end of the gutta-percha tip is at the 25 mm scale position, and the tail end of the gutta-percha tip passes through the cutting notch 301 between the lower shell 310 and the upper shell 320. Then, one hand presses the gutta-percha tip 1, and the other hand moves the sliding handle 323 downward, and the handle 323 drives the first blade 321 to extend outward from the upper shell 320 and cut the gutta-percha tip 1 at the cutting notch 301 position, so as to obtain the desired gutta-percha tip of 25 mm in length. Then, the sliding handle 323 is released, and the first blade 321 is driven to retract into the upper shell 320 under the action of the spring 322 to prevent the blade from being exposed and cutting the human body. In addition, the spring 322 may be directly eliminated, and the first blade 321 may be directly slid into the upper shell 320 to reduce cutting resistance. However, the first blade 321 needs to be pushed back into the upper shell 320 after cutting.

[0034] In addition to the cutting method, the gutta-percha tip of the required length can also be obtained by breaking, specifically, the gutta-percha tip to be cut is placed horizontally in the first length measuring slot 110, the position of the gutta-percha tip is adjusted so that the top end is located at the desired length scale after cutting, and the tail end of the gutta-percha tip passes through the cutting notch 301 between the lower shell 310 and the upper shell 320. Then, one hand holds the gutta-percha tip, and the other hand bends the rear end of the gutta-percha tip, and breaks it using the cutting notch 301.

[0035] Different from the existing gutta-percha tip trimmer whose blade (i.e., the second blade of the present application) cannot be disassembled, the present application specifically improves the slider 200, such as Figure 5-6 As shown, the slider 200 is provided with a blade slot 220 at the position of the groove 101, and the blade slot 220 is inclined in the slider 200 along the direction of the groove 101 and forms an acute angle with the groove 101. A second blade 221 is detachably installed in the blade slot 220, and a threaded hole 222 is provided on the upper surface of the slider 200, which penetrates downward to the blade slot 220, and a locking knob 223 is threadedly installed in the threaded hole 222. Before use, the locking knob 223 is first loosened, and the second blade 221 is inserted into the blade slot 220 and adjusted to a good position, and then the locking knob 223 is tightened to fix the second blade 221 to the slider 200. If the tip of the gutta-percha tip needs to be cut off, the tip of the gutta-percha tip is first inserted into the countersunk hole 102 of the corresponding specification from the back of the long strip base 100, and then the slider 200 is slid to cut off the tip of the gutta-percha tip exposed to the front of the long strip base 100. As the number of uses increases, the blade becomes blunt and causes unsmooth cutting. The locking knob 223 can be tightened to replace the second blade 221 with a new one.

[0036] The length of the second blade 221 is not less than the length of the blade slot 220, which facilitates the placement and removal of the second blade 221. At the same time, the width of the second blade 221 is not greater than the width of the groove 101, which avoids interference between the second blade 221 and the inner walls of the groove 101 during sliding.

[0037] In actual applications, medical staff can use the gutta-percha tip trimmer described in the utility model to accurately measure, trim and cut the gutta-percha tip according to the patient's needs and actual conditions, thereby improving the effect and quality of root canal treatment and providing better medical services for patients.

[0038] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. An improved gutta-percha tip trimmer, comprising a strip-shaped base (100), a groove (101) being provided on the front side of the strip-shaped base (100) in the length direction, a row of countersunk holes (102) with gradually increasing apertures being provided in the groove (101), a slider (200) being slidably mounted on the strip-shaped base (100) in the length direction, characterized in that: The front side of the long strip base (100) is provided with a first length measuring groove (110) and a second length measuring groove (120) with scales on the left and right sides; A spring cutter (300) is provided on one of the short sides of the long strip base (100), and the spring cutter (300) is provided with a lower shell (310) and an upper shell (320), wherein the lower shell (310) and the upper shell (320) are higher than the front side of the long strip base (100), and a cutting notch (301) is left between the lower shell (310) and the upper shell (320), wherein the cutting notch (301) is connected to the first length measuring groove (110), and the cutting notch (301) is connected to the first length measuring groove (110). 20) is provided with a first blade (321) and a spring (322), the first blade (321) is fixedly connected to a sliding handle (323) externally arranged on the side of the upper shell (320), an opening is provided at one end of the upper shell (320) close to the cutting notch (301), one end of the first blade (321) is connected to the spring (322), and the sliding handle (323) drives the other end of the first blade (321) in the upper shell (320) to extend outward from the opening; The slider (200) is provided with a blade slot (220) at the position of the groove (101), a second blade (221) is detachably installed in the blade slot (220), a threaded hole (222) is provided on the upper surface of the slider (200) and extends downwardly through the blade slot (220), and a locking knob (223) is threadedly installed in the threaded hole (222).

2. An improved gutta-percha tip trimmer as claimed in claim 1, characterized in that: The long strip base (100) and the sliding block (200) are respectively made of metal formed in one piece.

3. An improved gutta-percha tip trimmer as claimed in claim 1, characterized in that: The scale is graduated from 0 to 30 mm with an accuracy of 1 mm.

4. An improved gutta-percha tip trimmer as claimed in claim 1, characterized in that: The blade slot (220) is arranged in the slider (200) in an inclined manner along the direction of the groove (101) and forms an acute angle with the groove (101).

5. The improved gutta-percha tip trimmer according to claim 1, characterized in that: The length of the second blade (221) is not less than the length of the blade slot (220), and the width of the second blade (221) is not greater than the width of the groove (101).

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