CN213851147U - Root canal filling pressurizer - Google Patents

Abstract

The embodiment of the application provides a root canal filling pressurizer, and relates to the field of medical equipment. The root canal filling presser that this application embodiment provided includes handle and presser, and the one end of presser is connected in the handle, and the material of presser is the nickel titanium alloy that has the preflex nature. The pressurizer adopts the nickel-titanium alloy with the pre-bending property, so that the pressurizer has certain deformation capacity when in use, can adapt to the shape of a bent root canal and descend along the root canal, and better fills the root canal.

Description

Root canal filling pressurizer

Technical Field

The application relates to the field of medical equipment, in particular to a root canal filling pressurizer.

Background

Root canal therapy is an effective method for treating endodontic and periapical diseases, and prevents the occurrence of periapical lesions or promotes the healing of periapical lesions by removing inflammatory dental pulp and necrotic tissue in the root canal, appropriately sterilizing, and filling the root canal with gutta-percha points or hot gutta-percha after treatment. When filling the root canal, it is often necessary to use a root canal filling pressurizer to compact the filling material in the root canal. However, since the oral cavity space is small and the diseased site is deep, there may be a problem of inconvenient operation when the existing root canal filling pressurizer is used, resulting in failure to achieve a good filling effect.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a root canal filling compressor which can more conveniently press a filling material in a root canal.

The embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a root canal filling pressurizer for pressurizing a filling material filled in a tooth, including a handle and a pressurizer, wherein one end of the pressurizer is connected to the handle, and the pressurizer is made of a nickel-titanium alloy with preflex ability.

In an alternative embodiment, the cross-sectional area of the pressurizer decreases from the end connected to the handle to the free end.

In an alternative embodiment, the presser is circular in cross-section.

In an alternative embodiment, the pressurizer is heat activated.

In an alternative embodiment, the free end of the presser is freely bendable.

In an alternative embodiment, the pressurizer has a fixed end and a free end, and the handle has a mounting hole into which the fixed end of the pressurizer is inserted.

In an alternative embodiment, one of the inner sidewall of the mounting hole or the outer sidewall of the fixed end of the pressurizer is provided with a boss, and the other is provided with a groove, and the boss is fitted with the groove.

In an alternative embodiment, the handle has a first end and a second end, the first end being connected to the pressurizer, and a middle portion of the handle in a direction extending from the first end to the second end having a smaller dimension than the two ends.

In an alternative embodiment, the handle has a first end and a second end, the first end is connected to the pressurizer, and the handle is provided with a plurality of recesses, and the plurality of recesses are arranged at intervals in a direction extending from the first end to the second end. The plurality of depressions increase the contact area and increase the frictional force during holding.

In an alternative embodiment, the plurality of recesses are divided into a first group of recesses and a second group of recesses, the first group of recesses and the second group of recesses are respectively disposed on two opposite sides of the handle, and the recesses belonging to the same group are arranged at intervals in the extending direction from the first end to the second end of the handle.

The beneficial effects of the embodiment of the application are that:

the root canal filling presser that this application embodiment provided includes handle and presser, and the one end of presser is connected in the handle, and the material of presser is the nickel titanium alloy that has the preflex nature. The pressurizer adopts the nickel-titanium alloy with the pre-bending property, so that the pressurizer has certain deformation capacity when in use, can adapt to the shape of a bent root canal and descend along the root canal, and better fills the root canal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a root canal filling pressurizer in one embodiment of the present application;

fig. 2 is a sectional view taken along a-a in fig. 1.

010-root canal filling pressurizer; 100-a handle; 110-mounting holes; 112-a boss; 120-dishing; 200-a pressurizer; 210-a groove; 201-fixed end; 202-free end.

Detailed Description

Because the existing root canal filling pressurizer usually adopts hard stainless steel wires, when the pressurizer extends into a bent root canal and compresses a filler (such as a gutta-percha point or hot gutta-percha), the filler cannot be compressed well due to the mismatch of the shape of the pressurizer and the root canal. The doctor is inconvenient to operate, and the patient may feel uncomfortable. The existing linear pressurizer cannot well extend into the root canal to pressurize the filler because the posture of the pressurizer is inconvenient to adjust when the pressurizer extends into teeth in the deep part of the oral cavity.

In order to overcome at least one of the above-mentioned disadvantages of the prior art, embodiments of the present invention provide a root canal filling/pressurizing device capable of performing a better pressing operation of a filling material in a curved root canal by using a pressurizing device having preflex ability.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Fig. 1 is a schematic view of a root canal filling pressurizer 010 according to an embodiment of the present application; fig. 2 is a sectional view taken along a-a in fig. 1. Referring to fig. 1 and 2, the present embodiment provides a root canal filling compressor 010 for compressing a filling material filled in a tooth, wherein the filling material may be a gutta-percha point or a hot gutta-percha. The root canal filling pressurizer 010 includes a handle 100 and a pressurizer 200. One end of the pressurizer 200 is connected to the handle 100, and the end is a fixed end 201; the other end of the pressurizer 200, which is the free end 202, is used to compress the packing in the canal. The material of the pressurizer 200 is nitinol with pre-bendability. Due to the bendability of the nickel-titanium alloy, when the free end 202 of the pressurizer 200 extends into the root canal to compress the filler, even if the root canal is bent, the pressurizer 200 can still move downwards along the root canal to better pressurize the filler in the root canal.

In addition, for some affected parts (such as posterior teeth) which are deep and difficult to be pressurized, the pressurizer 200 may be adjusted to a proper shape to extend to the affected part for filling. In an alternative embodiment of the present application, such as shown in fig. 1, the free end 202 of the pressurizer 200 is bent such that the pressurizer 200 is integrally inclined to the affected tooth in some cases, but the free end 202 of the pressurizer 200 may be aligned with the extending direction of the root canal so as to be extended into the root canal. Compared with some straight rigid pressurizers 200, the root canal filling is more convenient for some teeth in the deep mouth.

As shown, in an alternative embodiment, the cross-sectional area of the pressurizer 200 decreases from the end attached to the handle 100 to the free end 202. It will be appreciated that the root canal is slimmer and tapers from an end near the crown to the root, and thus the size of the free end 202 of the pressurizer 200 also gradually decreases. The position near the fixed end 201 is thicker, and the part does not extend into the root canal, so that the thicker part can ensure certain strength.

In an alternative embodiment, the cross-section of the pressurizer 200 is circular. The surface of the pressurizer 200 is a smooth conical surface, so that when the pressurizer contacts the oral surface of a patient, the degree of discomfort is reduced, and the comfort of the patient is improved. Of course, in alternative embodiments, the cross-sectional shape of the pressurizer 200 may be implemented as a polygon, an ellipse, or the like.

In this embodiment, the phase transition temperature of the nitinol used in the pressurizer 200 is 40-60 degrees celsius, and the nitinol has thermal activation, so that the pressurizer 200 has certain elasticity at the temperature of the oral environment, and the comfort of the patient can be improved when the filler is pressurized, because the pressurizing force is not too strong to cause too strong pressure change due to too large rigidity of the pressurizer 200.

As shown in fig. 1 and 2, the handle 100 is a portion held by a doctor, the handle 100 has a mounting hole 110, and a fixed end 201 of the pressurizer 200 is inserted into the mounting hole 110 and is tightly fitted with the mounting hole 110 to be fixed. In general, the handle 100 is sized larger in diameter than the pressurizer 200, thereby facilitating the handling by the physician.

Alternatively, one of the inner sidewall of the mounting hole 110 or the outer sidewall of the fixed end 201 of the pressurizer 200 is provided with a boss 112, and the other is provided with a groove 210, and the boss 112 is fitted with the groove 210. The protrusion 112 and the groove 210 are engaged, so that the pressurizer 200 is not easily removed from the mounting hole 110, and the pressurizer 200 is not easily rotated with respect to the handle 100. The stability of the equipment is improved, and the operation precision during root canal filling is naturally facilitated. In the present embodiment, the boss 112 is provided on the inner wall of the mounting hole 110, and the groove 210 is provided outside the fixed end 201 of the pressurizer 200; in alternative embodiments, the locations of the boss 112 and the recess 210 may be reversed.

As shown in fig. 1 and 2, the boss 112 is a rectangular table, and the movement of the presser 200 is restricted by four sides of the boss 112. It should be understood that in alternative embodiments, the number of bosses 112 may be increased, and the shape may be provided as a hemispherical protrusion. In alternative embodiments, the boss 112 may not be provided, and the pressurizer 200 may be held in a fixed position relative to the inner wall of the mounting hole 110 of the handle 100 by damping only.

In the present embodiment, the handle 100 has a first end (i.e., a lower end in fig. 1) to which the pressurizer 200 is connected and a second end (i.e., an upper end in fig. 1), and the middle of the handle 100 in the direction extending from the first end to the second end has a smaller size than the two ends. The middle size of the handle 100 is set to be smaller than the sizes of the two ends, so that the handle can be conveniently held, and the root canal filling pressurizer 010 cannot easily slide to the human hand in the axial direction.

In this embodiment, the handle 100 has rounded corners at both ends, which improves the comfort of the user. In an alternative embodiment, the handle 100 is provided with a plurality of recesses 120, and the plurality of recesses 120 are spaced apart from each other in a direction extending from the first end to the second end. By providing the plurality of recesses 120, the contact area of the hand with the handle 100 is increased, and the frictional force is increased, thereby improving the hand feeling in use.

In an alternative embodiment, the plurality of recesses 120 are divided into a first group of recesses 120 and a second group of recesses 120, the first group of recesses 120 and the second group of recesses 120 are respectively disposed on two opposite sides of the handle 100, and the recesses 120 belonging to the same group are arranged at intervals in the extending direction from the first end to the second end of the handle 100. By providing two sets of depressions 120, the depressions 120 are accessible when the handle 100 is grasped by a finger from two directions.

In this embodiment, the handle 100 may be made of plastic, silicone, or the like, and is formed by injection molding in one step. Of course, in alternative embodiments, the handle 100 may be made of metal, wood, or even glass.

In summary, the root canal filling pressurizer 010 provided by the embodiment of the present application includes a handle 100 and a pressurizer 200, one end of the pressurizer 200 is connected to the handle 100, and the pressurizer 200 is made of nickel-titanium alloy with pre-bending property. Because the pressurizer 200 is made of nickel-titanium alloy with pre-bending property, the pressurizer 200 has certain deformation capacity when in use, can adapt to the shape of a bent root canal and descend along the root canal, and therefore the root canal is well filled.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A root canal filling pressurizer is used for pressurizing filling materials filled in teeth and is characterized by comprising a handle and a pressurizer, wherein one end of the pressurizer is connected to the handle, and the pressurizer is made of nickel-titanium alloy with pre-bending property.

2. The endodontic filling compressor of claim 1 wherein said compressor has a cross-sectional area that decreases from an end connected to said handle to a free end.

3. The endodontic filling pressurizer of claim 2 wherein the cross-section of the pressurizer is circular.

4. The endodontic filling pressurizer of claim 1 wherein the pressurizer is heat activated.

5. The endodontic filling compressor of claim 1 wherein a free end of said compressor is freely bendable.

6. The endodontic filling compressor of claim 1 wherein said compressor has a fixed end and a free end, said handle having a mounting hole into which said fixed end of said compressor is inserted.

7. The endodontic filling compressor of claim 6, wherein one of an inner sidewall of the mounting hole or an outer sidewall of a fixed end of the compressor is provided with a boss, and the other is provided with a groove, the boss being fitted with the groove.

8. The endodontic filling compressor of claim 1 wherein said handle has a first end and a second end, said first end being connected to said compressor, said handle having a dimension in the middle in the direction extending from said first end to said second end that is smaller than the dimensions of both ends.

9. The endodontic filling compressor of claim 1 wherein said handle has a first end and a second end, said first end being connected to said compressor, said handle having a plurality of recesses formed therein, said plurality of recesses being spaced apart in a direction extending from said first end to said second end.

10. The endodontic filling compressor of claim 9 wherein said plurality of depressions are divided into a first set of depressions and a second set of depressions, said first set of depressions and said second set of depressions being disposed on opposite sides of said handle, said depressions belonging to the same set being spaced apart in a direction extending from said first end to said second end of said handle.

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