CN217566367U - Self-exhausting dental root canal treatment needle and injection device - Google Patents

Abstract

The application relates to a self-exhausting dental root canal treatment needle and an injection device, which comprises: the syringe needle body is internally provided with a first channel, and a liquid inlet and a liquid outlet are respectively formed at two ends of the syringe needle body; the exhaust pipe with two open ends is arranged in the needle body, one end of the exhaust pipe is communicated with the external space of the needle body, part of the pipe body penetrates into the first channel from one side and extends to the other end of the exhaust pipe to extend out of the liquid outlet, and a circular path is reserved between the outer wall of the exhaust pipe and the peripheral edge of the liquid outlet at intervals. The washing liquid or the filling paste can be uniformly injected into the root canal to realize continuous downward compression of the air at the bottom of the root canal, the air at the bottom of the root canal can be discharged to the outside through the exhaust pipe of the liquid outlet after being extruded, the whole process does not need to use additional negative pressure equipment to suck the inside of the root canal, and the residual air in the root canal can be effectively discharged while the root canal is washed or filled.

Description

Self-exhausting dental root canal treatment needle and injection device

Technical Field

The application relates to the field of medical tools, in particular to a self-exhausting dental root canal treatment needle, a using method and an injection device.

Background

Root canal therapy is the main method for treating periapical infection of dental pulp root canal at present, and the main purpose is to remove the infection in the root canal and tightly fill the root canal with materials. Generally, instruments are used to mechanically enlarge the root canal and the root canal is washed, i.e. after the root canal is enlarged, a thin needle is used to go deep into the root canal, especially the apical part of the root canal is washed to remove the infectious matter in the root canal. In addition, filling after completion of root canal cleaning also requires injection of a filling paste into the entire root canal, especially the apical portion of the root canal, to ensure a tight filling of the entire root canal. Because the root canal point of tooth is located the alveolar bone, do not have with outside air traffic, the intraductal air of extrusion root forms the air cock at point portion behind the entering root canal of flush fluid or filling paste etc. results in the unable root canal point portion that really gets into of flush fluid or filling paste to wash and fill, seriously influences the washing and the filling effect of point portion root canal.

In the related art, there is an attempt to use a negative pressure suction apparatus to connect a needle having a small diameter into the tip of a canal, remove the air embolus by negative pressure suction, and simultaneously introduce a flushing fluid or a filling paste into the tip of the canal. However, the method needs to be connected with special negative pressure generating equipment, has high application and maintenance cost and inconvenient use, and increases the economic burden of patients, and needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a self-exhausting needle for treating a root canal, a using method and an injection device, which are used for solving the problem that an air embolism in the root canal needs to be sucked out through a negative pressure aspirator in the related technology.

In a first aspect, a self-venting needle for root canal treatment is provided.

A self-venting dental root canal treatment needle, comprising:

the syringe needle body is internally provided with a first channel, and a liquid inlet and a liquid outlet are respectively formed at two ends of the syringe needle body;

the exhaust pipe with two open ends is arranged in the needle head body, one end of the exhaust pipe is communicated with the external space of the needle head body, part of the pipe body penetrates into the first channel from one side and extends to the other end of the exhaust pipe to extend out of the liquid outlet, and a circular path is reserved between the outer wall of the exhaust pipe and the peripheral edge of the liquid outlet at intervals.

In some embodiments, the exhaust tube is movably engaged with the needle body in a slidable manner so as to adjust the length of the tube extending out of the liquid outlet.

In some embodiments, the annular ring is concentric with the liquid outlet.

In some embodiments, the exhaust pipe is a rigid pipe body, and a portion of the pipe body penetrating into the first passage is coaxial with the first passage.

In some embodiments, the first channel comprises at least:

the liquid inlet section is provided with a liquid inlet at one end;

the liquid outlet is arranged at one end of the liquid inlet section, the liquid outlet extends along a straight line and is not coaxial with the liquid inlet section, and the exhaust pipe penetrates into the liquid outlet section and coaxially extends into the liquid outlet section.

In some embodiments, the exhaust pipe is spaced from the inner wall of the liquid outlet section by 0.2mm.

In some embodiments, an end surface of the exhaust pipe extending out of the liquid outlet is arranged in an inclined plane.

In a second aspect, an injection device for self-venting root canal therapy is provided.

An injection device for self-venting root canal therapy, comprising:

an injector;

the self-exhausting dental root canal treatment needle is connected with the liquid inlet on the self-exhausting dental root canal treatment needle through the injector.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a self-exhaust needle and an injection device for treating a root canal, when the end part of an integral needle is placed in the root canal, part of a tube body of an exhaust pipe penetrates into a first channel of a needle body, and a loop is reserved with a liquid outlet when the tube body extends out of a liquid outlet of the first channel, so that flushing liquid or filling paste can be injected into the root canal through the first channel, and due to the loop between the first channel and an internal exhaust pipe thereof, the flushing liquid or the filling paste can be uniformly injected into the root canal, air at the bottom of the root canal is continuously compressed downwards, at the moment, air at the bottom of the root canal can be exhausted to the outside through the exhaust pipe of the liquid outlet after being extruded, and because the end part of the exhaust pipe is closer to the bottom end of the root canal, the air at the bottom of the root canal can be more fully exhausted, the effective flushing of the root canal or the filling of the paste can be finally completed, the whole process does not need of using additional negative pressure equipment to suck the inside of the root canal, and can be quickly flushed or filled and effectively exhaust residual air in the root canal.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic overall structure of some embodiments of the present application;

FIG. 2 is a schematic diagram of the overall structure of another embodiment of the present application.

In the figure:

1. a needle body; 10. a first channel; 100. a liquid inlet section; 101. a liquid outlet section; 11. a liquid inlet; 12. a liquid outlet;

2. an exhaust pipe;

3. an injector;

4. a root canal; 40. a hole at the tip of the root.

Detailed Description

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. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The embodiment of the application provides a self-exhausting needle for treating a dental root canal, a using method and an injection device, which can solve the problem that a negative pressure aspirator is required to suck out an air embolism in the dental root canal in the related art.

In a first aspect, and with reference to fig. 1, embodiments of the present application provide a self-venting root canal treatment needle comprising:

the syringe needle comprises a syringe needle body 1, a first channel 10 is arranged in the syringe needle body 1, and a liquid inlet 11 and a liquid outlet 12 are respectively formed at two ends of the syringe needle body 1;

the exhaust pipe 2 with two open ends is arranged in the needle body 1, one end of the exhaust pipe is communicated with the external space of the needle body 1, part of the pipe body penetrates into the first channel 10 from one side and extends to the other end of the exhaust pipe to extend out of the liquid outlet 12, and a circular path is reserved between the outer wall of the exhaust pipe and the peripheral edge of the liquid outlet 12 at intervals.

Wherein, syringe needle body 1 is the injection needle pipe of syringe 3 specifically in this embodiment, and it can be the body of other adaptation patient oral cavity structures as required simultaneously. The first passage 10 is an injection port of the injection needle tube. One end of the exhaust pipe 2 is open outside the needle body 1 to communicate with the external space, and the other end of the exhaust pipe passes through the wall of the needle body 1 to enter the first channel 10 and extends into the liquid outlet 12 extending out of the first channel 10, and an annular channel is reserved between the periphery of the liquid outlet 12 and the periphery of the liquid outlet 12 when the liquid outlet 12 extends out, so as to avoid the blockage of the exhaust pipe 2 to the first channel 10, and meanwhile, flushing liquid or filling paste sent out through the first channel 10 can enter the root canal 4 from the periphery of the exhaust pipe 2 at the same time.

With the arrangement, when the end part of the integral needle is placed in the root canal 4, part of the tube body of the exhaust pipe 2 penetrates into the first channel 10 of the needle body 1, and an annular channel is reserved between the exhaust pipe 12 of the first channel 10 and the liquid outlet 12 when the end part of the integral needle extends out of the liquid outlet 12 of the first channel 10, so that flushing liquid or filling paste can be uniformly injected into the root canal 4 through the first channel 10, and air at the bottom of the root canal 4 is continuously compressed downwards, at the moment, air at the bottom of the root canal 4 can be discharged to the outside through the exhaust pipe 2 of the liquid outlet 12 after being extruded, and because the end part of the exhaust pipe 2 is closer to the bottom end of the root canal 4, air at the bottom of the root canal 4 can be more sufficiently discharged, and finally effective flushing or filling of the root canal 4 is finished, and no extra negative pressure equipment is needed for sucking the interior of the root canal 4 in the integral process, so that air in the root canal 4 can be effectively discharged while flushing or filling can be quickly finished.

Optionally, the exhaust tube 2 is movably fitted in a relatively slidable manner when penetrating into the needle body 1, so as to adjust the length of the tube extending out of the liquid outlet 12.

Wherein, set up the through hole that communicates exterior space and first passageway 10 on the syringe needle body 1, exhaust pipe 2 slides to pass to the first passageway 10 in through the through hole, and the through hole diameter is unanimous with exhaust pipe 2 external diameter to avoid sending the flush fluid or the filling paste in root canal 4 through first passageway 10 to leak from the through hole department.

Set up like this, blast pipe 2 can carry out the pull when using and slide, and then, when sending into flush fluid or filling material through syringe needle body 1 in to root canal 4, operating personnel can control blast pipe 2 reciprocal slip in shorter distance, and the air of 4 bottoms of root canal can be realized more swiftly getting into in blast pipe 2 this moment to finally realize comparatively thorough discharging the air, showing the air cock size of bottom when reducing the interior packing of root canal 4 and finishing the paste.

Optionally, the ring path is in a circular ring structure concentric with the liquid outlet 12.

By the arrangement, the flushing liquid or the filling paste can be uniformly distributed on the peripheral side of the exhaust pipe 2 when being sent out of the liquid outlet 12, so that the space of the root canal 4 outside the exhaust pipe 2 is uniformly filled, and the air in the space can be smoothly compressed to the bottom and is exhausted through the exhaust pipe 2.

Alternatively, the exhaust pipe 2 is a rigid pipe body, and the part of the pipe body penetrating into the first passage 10 is coaxial with the first passage 10.

The exhaust pipe 2 is made of rigid plastic in the present embodiment, and a metal structure may be adopted in other embodiments.

Compared with a deformable soft structure, the exhaust pipe 2 is in sliding fit with the needle head body 1, so that the exhaust pipe can be pushed into or pulled out of the needle head body 1 more conveniently and rapidly, and the influence on operation after deformation is avoided; meanwhile, the exhaust pipe 2 in the first channel 10 cannot be extruded and deformed, when the flushing fluid or the filling paste enters the exhaust pipe 2 through the first channel 10, the exhaust pipe 2 cannot be deformed, and then the internal passage of the exhaust pipe 2 is prevented from being influenced, so that the air at the bottom of the root canal 4 can continuously, smoothly and efficiently pass through the exhaust pipe 2.

Optionally, with reference to fig. 1, the first channel 10 comprises at least:

the liquid inlet section 100 is provided with a liquid inlet 11 at one end;

the liquid outlet 12 is arranged at one end, far away from the liquid inlet section 100, of the liquid outlet section 101, extends along a straight line and is not coaxial with the liquid inlet section 100, and the exhaust pipe 2 penetrates into the liquid outlet section 101 and extends coaxially in the liquid outlet section 101.

In the present embodiment, the first channel 10 is a bent passage having an included angle formed between the liquid inlet section 100 and the liquid outlet section 101. The exhaust pipe 2 penetrates into the liquid outlet section 101 at the connecting and bending part of the liquid outlet section 101 and the liquid inlet section 100, and extends coaxially with the liquid outlet section 101 until extending out of the first channel 10.

Set up like this, realize blast pipe 2 and carry out the pull slip along linear direction in first passageway 10, make outside operating personnel more convenient when using operate, and ensured that the cyclic annular interval between the inner wall of play liquid section 101 and blast pipe 2 keeps circular ring way continuously, does benefit to the even of washing liquid and filling paste and sees off.

In addition, referring to fig. 2, in other embodiments, the needle body 1 and the first channel 10 can extend along a straight line, and the exhaust pipe 2 is bent to a bending structure coaxial with the first channel 10 after penetrating into the first channel 10, but in embodiments, the exhaust pipe 2 with a hard structure cannot be pumped, and further cannot be pumped to improve the air exhaust efficiency when injecting flushing liquid or filling paste into the root canal 4 through the first channel 10.

Further, the interval between the exhaust pipe 2 and the inner wall of the liquid outlet section 101 is 0.2mm.

With this arrangement, the first passage 10 can discharge the rinsing liquid or the filling paste relatively quickly and smoothly.

Optionally, the end surface of the exhaust pipe 2 extending out of the liquid outlet 12 is arranged in an inclined plane.

With the arrangement, the area of the opening at the end part of the exhaust pipe 2 is increased, so that air in the bottom space of the root canal 4 can more smoothly enter the exhaust pipe 2, and efficient exhaust from the exhaust pipe 2 to the outside is realized.

In a second aspect, embodiments of the present application provide a method of using a self-venting root canal treatment needle.

A method of using a self-venting dental root canal treatment needle, comprising:

s1, extending a needle body 1 and an exhaust pipe 2 in the needle body into a tooth root canal 4;

s2, continuously injecting the liquid medicine into the root canal 4 through the first channel 10 until the liquid medicine overflows out of the root canal 4 or an opening of the exhaust pipe 2 communicated with the outside.

In step S1, the tip of the needle body 1 is further controlled to be 405mm away from the apical hole of the root canal 4, and the tip of the air vent 2 is controlled to be 1mm away from the apical hole 40 of the root canal 4.

In step S2, the self-venting endodontic needle is connected to a fluid infusion tool such as a syringe 3, so that the fluid infusion tool delivers the relevant medical fluid into the root canal 4 through the first channel 10.

Alternatively, when the liquid medicine is continuously injected into the root canal 4 through the first channel 10 until the liquid medicine overflows the root canal 4, the exhaust pipe 2 or the needle body 1 can be reciprocally pumped in a small amplitude, so that the end part of the exhaust pipe 2 outside the liquid outlet 12 of the first channel 10 moves up and down in the root canal 4.

When the exhaust pipe 2 is pumped back and forth, the moving distance of the end part of the exhaust pipe 2 in the front and back directions of the starting point is not larger than 1mm so as to prevent the end part of the exhaust pipe 2 from contacting the apical pore 40 of the root canal 4.

By the arrangement, when the syringe needle body 1 sends flushing liquid or fills and supplements materials into the root canal 4, an operator can control the exhaust pipe 2 to pump back and forth within a short distance, so that air at the bottom end of the root canal 4 can enter the exhaust pipe 2 more quickly, air is discharged more thoroughly finally, and the size of an air plug at the bottom of the root canal 4 is remarkably reduced when the filling of the root canal 4 is finished.

In a third aspect, referring to fig. 1, embodiments of the present application provide an injection device for self-venting root canal therapy.

An injection device for self-venting root canal therapy, comprising:

an injector 3;

the self-exhausting dental root canal treatment needle is connected with the liquid inlet 11 on the self-exhausting dental root canal treatment needle and the injector 3.

In this embodiment, the open end of the self-exhausting root canal therapy needle, which is communicated with the outside, is directly used in an open state, so that the air in the root canal 4 can be exhausted without using a negative pressure device. Furthermore, in other embodiments, when it is desired to evacuate the air in the root canal 4 at a faster rate, a negative pressure device can also be connected by means of the air evacuation tube 2 to fulfil this need.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; 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 by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A self-venting dental root canal treatment needle, comprising:

the syringe needle comprises a syringe needle body (1), wherein a first channel (10) is arranged in the syringe needle body, and a liquid inlet (11) and a liquid outlet (12) are respectively formed at two ends of the syringe needle body (1);

the exhaust pipe (2) with two open ends is arranged in the needle body (1), one end of the exhaust pipe is communicated with the external space of the needle body (1), a part of pipe body penetrates into the first channel (10) from one side and extends to the other end of the exhaust pipe to extend out of the liquid outlet (12), and a circular channel is reserved between the outer wall of the exhaust pipe and the peripheral edge of the liquid outlet (12) at intervals.

2. The self-venting needle for root canal treatment according to claim 1, wherein said venting tube (2) is movably fitted in a slidable manner with respect to each other when it penetrates into said needle body (1) so as to adjust the length of the tube extending out of said outlet (12).

3. The self-evacuating root canal treatment needle according to claim 1, wherein the annular channel is of an annular ring shape concentric with the liquid outlet (12).

4. The needle for self-venting root canal treatment according to claim 1, 2 or 3, wherein the venting tube (2) is a rigid tube and the portion of the tube penetrating into the first channel (10) is coaxial with the first channel (10).

5. The needle for self-venting root canal therapy according to claim 4, characterized in that said first channel (10) comprises at least:

the liquid inlet section (100) is provided with a liquid inlet (11) at one end;

go out liquid section (101), liquid outlet (12) locate its one end of keeping away from feed liquor section (100), its along the straight line extend and with feed liquor section (100) are not coaxial, blast pipe (2) penetrate go out in liquid section (101) and in go out coaxial extension in liquid section (101).

6. The self-venting root canal treatment needle according to claim 5, wherein the air vent tube (2) is spaced 0.2mm from the inner wall of the tapping section (101).

7. The needle for self-venting root canal therapy according to claim 1, characterized in that the end surface of said venting tube (2) extending out of said liquid outlet (12) is beveled.

8. An injection device for self-venting dental root canal therapy, comprising:

an injector (3);

the self-venting root canal treatment needle according to claim 1, wherein said inlet (11) is connected to said syringe (3).

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