阅读说明：本技术 一种带动注胶针旋转的隔热套 (Heat insulation sleeve for driving glue injection needle to rotate ) 是由 吴坤优 孟笠 陈泽荣 李堂进 刁跃虎 于 2020-06-10 设计创作，主要内容包括：本发明公开了一种带动注胶针旋转的隔热套,包括牙胶枪、隔热套和注胶针,牙胶枪包括牙胶枪本体、推进杆、第一腔体和加热管,牙胶枪本体、第一腔体和加热管依次连接,推进杆和牙胶枪本体滑动连接,并伸入第一腔体中,第一腔体中放置牙胶,使得推动推进杆可以将牙胶推入加热管内进行加热,隔热套包括隔热套本体和嵌件,隔热套与加热管转动连接,位于加热管外侧保护使用者不被加热管烫伤,注胶针包括针头、针套和连接螺母,连接螺母和加热管螺纹连接,针套中有针头,针套和连接螺母转动连接,并与嵌件卡合,使得转动隔热套本体可以通过嵌件方便地转动针头而注射牙胶,使得针头转动更加方便且使用者不容易烫伤。(The invention discloses a heat insulation sleeve driving a glue injection needle to rotate, which comprises a gum gun, a heat insulation sleeve and a glue injection needle, wherein the gum gun comprises a gum gun body, a push rod, a first cavity and a heating pipe, the gum gun body, the first cavity and the heating pipe are sequentially connected, the push rod is slidably connected with the gum gun body and extends into the first cavity, gum is placed in the first cavity, so that the push rod can push the gum into the heating pipe to be heated, the heat insulation sleeve comprises a heat insulation sleeve body and an insert, the heat insulation sleeve is rotatably connected with the heating pipe and is positioned outside the heating pipe to protect a user from being scalded by the heating pipe, the glue injection needle comprises a needle head, a needle sleeve and a connecting nut, the connecting nut is in threaded connection with the heating pipe, the needle head is arranged in the needle sleeve, the needle sleeve is rotatably connected with the connecting nut and is clamped with the insert, so that the heat insulation sleeve body can conveniently rotate the needle head through the, so that the needle head can rotate more conveniently and the user is not easy to scald.)

1. A heat insulation sleeve driving a glue injection needle to rotate, which is characterized in that,

the dental cement gun comprises a dental cement gun body, a push rod, a first cavity and a heating pipe, wherein the first cavity is provided with a cement injection port, the first cavity is fixedly connected with the dental cement gun body and is positioned on one side of the dental cement gun body, the heating pipe is fixedly connected with the first cavity and is positioned on one side of the first cavity far away from the dental cement gun body, the push rod is slidably connected with the dental cement gun body and the first cavity and is positioned in the dental cement gun body, the heat insulation sleeve comprises a heat insulation sleeve body and an insert, the heat insulation sleeve body is rotatably connected with the heating pipe and is positioned on the outer side of the heating pipe, the insert is fixedly connected with the heat insulation sleeve body and is positioned on one side of the heat insulation sleeve body far away from the heating pipe, and the cement injection needle comprises a needle head, a needle sleeve and a connecting nut, the connecting nut is in threaded connection with the heating pipe body and is positioned in the heat insulation sleeve body, the needle sleeve is in rotating connection with the connecting nut and is positioned in the connecting nut, the needle head is fixedly connected with the needle sleeve and is positioned in the needle sleeve, and the needle sleeve is detachably connected with the insert.

2. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 1,

the gutta-percha gun further comprises a spring, the spring is fixedly connected with the gutta-percha gun body, and the push rod penetrates through the spring.

3. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 2,

the heating pipe includes heating pipe body and shell, the shell with gutta-percha rifle body threaded connection to be located one side of gutta-percha rifle body, the heating pipe body with gutta-percha rifle body fixed connection, and be located in the shell.

4. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 3,

the insert is provided with a plurality of insert grooves, the needle sleeve is provided with a plurality of clamping columns, and the clamping columns are located in the insert grooves.

5. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 4,

the shell has the draw-in groove, the radiation shield cover still includes a plurality of spliced poles, a plurality of spliced poles with radiation shield cover body fixed connection, the spliced pole is located in the draw-in groove.

6. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 5,

the heat insulation sleeve further comprises an identification layer, and the identification layer is fixedly connected with the heat insulation sleeve body and is positioned on the surface of the heat insulation sleeve body.

7. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 1,

the glue injection needle further comprises a limiting ring, wherein the limiting ring is fixedly connected with the needle head and is positioned at a position where the needle head is close to the connecting nut.

8. The heat insulation sleeve with the glue injection needle rotating as claimed in claim 7,

the glue injection needle further comprises a sealing ring, and the sealing ring is fixedly connected with the needle sleeve and is positioned between the needle sleeve and the connecting nut.

Technical Field

The invention relates to the field of oral root canal filling, in particular to a heat insulation sleeve for driving a glue injection needle to rotate.

Background

Root canal filling, which is the last step in a root canal treatment operation, is mainly used to treat pulp necrosis and root canal infection by removing necrotic tissue in the pulp cavity and then refilling the pulp cavity after sterilization, to relieve the pressure stimulation of the diseased tissue to the dental nerve and prevent the condition of the tooth from further deteriorating. The general use of current hot melt tooth glue gun does: the gutta-percha is placed into the gutta-percha inlet, the gutta-percha is pushed into the heating tube by the push rod, the gutta-percha is extruded to the glue injection needle after being heated and melted, and finally the gutta-percha is sent into the root canal for filling from the small needle canal, and the needle head is required to be rotated in the treatment process.

In the market, a pushing rod is used for driving a needle head to rotate or the needle head rotates in a needle sleeve, and a glue injection needle rotates relative to a heating tube. Because the gutta-percha needs a great temperature for heating, the general use temperature is above 100 ℃, the temperature of the components contacted with the heating tube is also high in the long-term use process, and the user is easily scalded during the rotation. In addition, the pushing rod drives the glue injection needle to rotate, the buckle needs to be pressed down by one hand, the pushing rod is rotated by one hand, the operation is relatively complex, a doctor forgets to press down the buckle in the using process and directly pulls and rotates the pushing rod, the service life of the machine is influenced on one hand, and the use is very inconvenient on the other hand.

Disclosure of Invention

The invention aims to provide a heat insulation sleeve driving a glue injection needle to rotate, and aims to solve the problem that an existing glue injection gun is easily scalded and inconvenient to rotate by using a push rod when rotating.

In order to achieve the above object, the present invention provides a heat insulation sleeve for driving a glue injection needle to rotate, comprising a gum gun, a heat insulation sleeve and a glue injection needle, wherein the gum gun comprises a gum gun body, a push rod, a first cavity and a heating pipe, the first cavity is provided with a glue injection port, the first cavity is fixedly connected with the gum gun body and is positioned at one side of the gum gun body, the heating pipe is fixedly connected with the first cavity and is positioned at one side of the first cavity far away from the gum gun body, the push rod is slidably connected with the gum gun body and the first cavity and is positioned in the gum gun body, the heat insulation sleeve comprises a heat insulation sleeve body and an insert, the heat insulation sleeve body is rotatably connected with the heating pipe and is positioned at the outer side of the heating pipe, the insert is fixedly connected with the heat insulation sleeve body and is positioned at one side of the heat insulation sleeve body far away from the heating pipe, the glue injection needle comprises a needle head, a needle sleeve and a connecting nut, the connecting nut is in threaded connection with the heating pipe body and is located in the heat insulation sleeve body, the needle sleeve is rotationally connected with the connecting nut and is located in the connecting nut, the needle head is fixedly connected with the needle sleeve and is located in the needle sleeve, and the needle sleeve and the insert are detachably connected.

The dental cement gun further comprises a spring, the spring is fixedly connected with the dental cement gun body, and the push rod penetrates through the spring.

The heating pipe comprises a heating pipe body and a shell, the shell is in threaded connection with the gutta-percha gun body and is located on one side of the gutta-percha gun body, and the heating pipe body is fixedly connected with the gutta-percha gun body and is located in the shell.

The needle sleeve is provided with a plurality of clamping columns, and the clamping columns are located in the insert grooves.

The shell is provided with a clamping groove, the heat insulation sleeve further comprises a plurality of connecting columns, the connecting columns are fixedly connected with the heat insulation sleeve body, and the connecting columns are located in the clamping groove.

The heat insulation sleeve further comprises an identification layer, wherein the identification layer is fixedly connected with the heat insulation sleeve body and is positioned on the surface of the heat insulation sleeve body.

The glue injection needle further comprises a limiting ring, the limiting ring is fixedly connected with the needle head and is positioned at a position where the needle head is close to the connecting nut.

The glue injection needle further comprises a sealing ring, and the sealing ring is fixedly connected with the needle sleeve and is positioned between the needle sleeve and the connecting nut.

According to the heat insulation sleeve driving the glue injection needle to rotate, the support devices such as voltage required by heating are arranged in the gutta percha gun body, and the gutta percha gun is convenient to hold by hands; the first cavity is fixedly connected with the gutta-percha gun body, the first cavity is used for containing cold gutta-percha to be used in an operation, the heating pipe is fixedly connected with the first cavity, the heating pipe can heat the gutta-percha in the pipe to enable the gutta-percha to be in a molten flowing state, the push rod is connected with the gutta-percha gun body and the first cavity in a sliding mode, and the gutta-percha in the first cavity can be pushed into the heating pipe to be heated by pushing the push rod; the utility model discloses a tooth heating device, including the heating pipe, the heating pipe is connected with the cover body, the cover body with the heating pipe rotates to be connected with the user with the heating pipe separates, avoids the user to scald, the inserts with cover body fixed connection, coupling nut with heating pipe body threaded connection for gutta-percha in the heating pipe can not spill from this place, the needle cover with coupling nut rotates to be connected, the syringe needle with needle cover fixed connection, the needle cover with the connection can be dismantled to the inserts, through rotating the cover body can drive the inserts rotates, thereby drives the needle cover with the syringe needle is relative coupling nut rotates, extrudes into the assigned position in the tooth with hot gutta-percha. The rotating scheme of the injection needle is driven by the relative pushing rod, the scheme can be more convenient to rotate, and the injection needle and the heating tube are isolated by the heat insulation sleeve, so that scalding is avoided. The scheme is that the needle head directly rotates on the needle sleeve, on one hand, heat is isolated, on the other hand, the interference magnitude problem of the needle head and the needle sleeve can be solved, and the situation of looseness and tightness cannot occur in the rotation of the needle head. To the rotatory scheme of the relative heating tube of injecting glue needle, this scheme on the one hand completely cuts off the heat, and on the other hand can solve the risk that the injecting glue needle drops to easily be scalded and rotate inconvenient problem again with the pushing ram when solving current injecting glue rifle rotatory.

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 the drawings without creative efforts.

FIG. 1 is a block diagram of a heat shield sleeve of the present invention with a glue injection needle rotating;

FIG. 2 is a partial cross-sectional view of the insulating sleeve and glue injection needle of the present invention;

FIG. 3 is a partial block diagram of the insert of the present invention;

FIG. 4 is a block diagram of the glue injection needle of the present invention;

fig. 5 is a cross-sectional view of fig. 4.

1-gutta-percha gun, 2-heat insulation sleeve, 3-glue injection needle, 11-gutta-percha gun body, 12-pushing rod, 13-first cavity, 14-heating pipe, 15-glue injection port, 16-spring, 17-heating pipe body, 18-shell, 19-clamping groove, 21-heat insulation sleeve body, 22-insert, 23-insert groove, 24-connecting column, 25-identification layer, 31-needle head, 32-needle sleeve, 33-connecting nut, 34-sealing ring, 35-spacing ring and 36-clamping column.

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 or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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 the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, fig. 2, fig. 4 and fig. 5, the present invention provides a heat insulation sleeve for driving a glue injection needle to rotate, including: the dental cement gun comprises a dental cement gun body 11, a push rod 12, a first cavity 13 and a heating pipe 14, wherein the first cavity 13 is provided with a cement injection port 15, the first cavity 13 is fixedly connected with the dental cement gun body 11 and is positioned on one side of the dental cement gun body 11, the heating pipe 14 is fixedly connected with the first cavity 13 and is positioned on one side of the first cavity 13 far away from the dental cement gun body 11, the push rod 12 is slidably connected with the dental cement gun body 11 and the first cavity 13 and is positioned in the dental cement gun body 11, the heat insulation sleeve 2 comprises a heat insulation sleeve body 21 and an insert 22, the heat insulation sleeve body 21 is rotatably connected with the heating pipe 14 and is positioned on the outer side of the heating pipe 14, the insert 22 is fixedly connected with the heat insulation sleeve body 21 and is positioned on one side of the heat insulation sleeve body 21 far away from the heating pipe 14, the glue injection needle 3 comprises a needle head 31, a needle sleeve 32 and a connecting nut 33, the connecting nut 33 is in threaded connection with the heating pipe body 17 and is located in the heat insulation sleeve body 21, the needle sleeve 32 is in rotary connection with the connecting nut 33 and is located in the connecting nut 33, the needle head 31 is fixedly connected with the needle sleeve 32 and is located in the needle sleeve 32, and the needle sleeve 32 and the insert 22 are detachably connected.

In the present embodiment, the dental cement gun 1 includes a dental cement gun body 11, a push rod 12, a first cavity 13 and a heating tube 14, and the dental cement gun body 11 has a supporting device such as a voltage required for heating, and is convenient for being held by a hand; the first cavity 13 is provided with a glue injection port 15, the first cavity 13 is fixedly connected with the gutta-percha gun body 11 and is positioned on one side of the gutta-percha gun body 11, the first cavity 13 is used for containing cold gutta-percha to be used in an operation, the heating pipe 14 is fixedly connected with the first cavity 13 and is positioned on one side of the first cavity 13 far away from the gutta-percha gun body 11, the heating pipe 14 can heat the gutta-percha in a pipe to enable the gutta-percha to be in a molten flowing state, the push rod 12 is slidably connected with the gutta-percha gun body 11 and the first cavity 13 and is positioned in the gutta gun body 11, the push rod 12 is pushed to push the gutta-percha in the first cavity 13 into the heating pipe 14 to be heated, the heat insulation sleeve 2 comprises a heat insulation sleeve body 21 and an insert 22, and the heat insulation sleeve body 21 is rotatably connected with the heating pipe 14, and is located outside the heating pipe 14 to separate the user from the heating pipe 14, so as to avoid scalding of the user, the insert 22 is fixedly connected with the heat insulation sleeve body 21 and is located on one side of the heat insulation sleeve body 21 away from the heating pipe 14, the glue injection needle 3 comprises a needle head 31, a needle sheath 32 and a connecting nut 33, the connecting nut 33 is in threaded connection with the heating pipe body 17 and is located in the heat insulation sleeve body 21, so that the gutta-percha in the heating pipe 14 cannot leak out therefrom, the needle sheath 32 is rotatably connected with the connecting nut 33 and is located in the connecting nut 33, the needle head 31 is fixedly connected with the needle sheath 32 and is located in the needle sheath 32, the needle sheath 32 is detachably connected with the insert 22, and by rotating the heat insulation sleeve body 21, the insert 22 can be driven to rotate, so as to drive the needle sheath 32 and the needle head 31 to rotate relative to the connecting nut 33, hot gutta-percha is squeezed into a designated location in the tooth. The heat insulation sleeve 2 is held by a hand to rotate so as to enable the needle head 31 to rotate, a user is prevented from being scalded due to the contact of the heat pipe 14, then the pushing rod 12 is pushed to inject tooth glue, the operation is convenient, and the problem that the pushing rod 12 is inconvenient to rotate due to the fact that the existing glue injection gun is easily scalded when the existing glue injection gun rotates is solved.

Further, the gutta-percha gun 1 further comprises a spring 16, the spring 16 is fixedly connected with the gutta-percha gun body 11, and the push rod 12 penetrates through the spring 16.

In this embodiment, after the gutta-percha injection is completed, the push rod 12 is released, and the push rod 12 can be automatically restored to the original position under the restoring force of the spring 16, so that the use is more convenient.

Further, referring to fig. 2, the heating pipe 14 includes a heating pipe body 17 and a casing 18, the casing 18 is in threaded connection with the gutta percha gun body 11 and is located at one side of the gutta percha gun body 11, and the heating pipe body 17 is fixedly connected with the gutta percha gun body 11 and is located in the casing 18.

In the present embodiment, the heating tube body 17 is located in the outer shell 18, so that a cavity is formed between the heating tube body 17 and the outer shell 18, thereby reducing heat conduction and further improving heat insulation effect.

Further, referring to fig. 5, the glue injection needle 3 further includes a sealing ring 34, and the sealing ring 34 is fixedly connected to the needle sheath 32 and is located between the needle sheath 32 and the connecting nut 33.

In this embodiment, the sealing ring 34 may be an O-ring. The O-ring is interference fitted into the needle hub 32 and the needle hub 32 is interference pressed into the coupling nut 33. The advantage of this solution is that the direct friction between the needle sheath 32 and the connecting nut 33 is isolated by the O-ring, and when the needle sheath 32 drives the needle 31 to rotate, the force of rotation is uniform and smooth, and the magnitude of the rotation force can be controlled according to the magnitude of the compression amount of the O-ring. During assembly, the interference assembly mode can also effectively prevent the gutta-percha from leaking out of the front end of the needle sleeve 32.

Further, referring to fig. 3, the insert 22 has a plurality of insert grooves 23, the needle sheath 32 has a plurality of locking posts 36, and the locking posts 36 are located in the insert grooves 23.

In this embodiment, the locking pin 36 and the insert groove 23 are matched with each other, and the matching between the two is transition matching or clearance matching, so that the insert 22 can rotate together with the needle sheath 32 when rotating, in addition, in the process of actual use, the needle 31 is generally bent for use, or the needle 31 has a slightly bent condition when being taken out, when the assembly of the insert 22 and the heat insulation sleeve 2 is assembled, the assembly can enter through the insert groove 23 on the insert 22, and the problem of assembly incapability (such as no insert groove 23 extending to the periphery, and interference with the assembly of the glue injection needle 3, which results in assembly incapability) can not occur.

Further, referring to fig. 2, the housing 18 has a clamping groove 19, the heat insulating sleeve 2 further includes a plurality of connecting columns 24, the plurality of connecting columns 24 are fixedly connected with the heat insulating sleeve body 21, and the connecting columns 24 are located in the clamping groove 19.

In this embodiment, a gap is formed between every two connecting columns 24, so that when the heat insulation sleeve body 21 is sleeved on the shell 18, the connecting columns 24 are outwards opened and finally fall into the clamping grooves 19, and the heat insulation sleeve 2 is limited to rotate but not slide back and forth.

Further, the heat insulation sleeve 2 further comprises an identification layer 25, wherein the identification layer 25 is fixedly connected with the heat insulation sleeve body 21 and is located on the surface of the heat insulation sleeve body 21.

In the present embodiment, the identification layer 25 is used to warn that there is a high temperature, so as to prevent children or customers from being burned due to misoperation.

Further, the glue injection needle 3 further comprises a limiting ring 35, wherein the limiting ring 35 is fixedly connected with the needle head 31 and is positioned at a position where the needle head 31 is close to the connecting nut 33.

In this embodiment, the retainer ring 35 is used to fix the position of the needle 31 and prevent the needle 31 from sliding out of the needle sheath 32.

The working principle and the using process of the invention are as follows: referring to fig. 1, 2 and 4, after the present invention is installed, the gutta-percha is put into the filling opening 15, the pushing rod 12 pushes the gutta-percha into the heating pipe 14, and the gutta-percha is pushed into the filling needle 3 after being heated and melted. At this time, the needle head 31 of the glue injection needle 3 is bent, the glue outlet position of the needle head 31 needs to be adjusted to correspond to the position of the tooth needing to be supplemented with the gutta percha, the heat insulation sleeve 2 is rotated, the insert 22 drives the needle sleeve 32 to rotate, the needle sleeve 32 drives the needle head 31 to rotate, the needle head 31 is finally adjusted to a proper position, the gutta percha is injected into the root canal of the patient, and the treatment process is completed.

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 detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.