CN113456260A

CN113456260A - Resin filler for tooth restoration

Info

Publication number: CN113456260A
Application number: CN202110617962.1A
Authority: CN
Inventors: 唐诗佳; 李晓健; 史岩; 刘亮
Original assignee: Affiliated Stomatological Hospital of Nanjing Medical University
Current assignee: Affiliated Stomatological Hospital of Nanjing Medical University
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-10-01

Abstract

The invention relates to the technical field of tooth restoration, and discloses a resin filler for tooth restoration. The resin filler for tooth restoration is characterized in that a caliber adjusting mechanism is arranged in a liquid storage cylinder to adjust the size of a resin injection opening, a handle is rotated to drive a push rod and a piston to rotate, so that an adjusting rod and a clamping block clamped in a clamping groove rotate along with the adjusting rod and the clamping block, a second blocking piece is driven to rotate, the size of an opening formed by the first blocking piece and the second blocking piece is changed, an indicating mechanism rotates along with the push rod, the size of the resin injection opening is marked through a scale mark pointed by a pointer, the resin filler is convenient to adjust to a proper resin injection amount, the phenomenon of excessive injected resin is avoided, and waste is reduced; through set up collapsible pressing means in injection head one side, come to press the resin of pouring into the decayed cavity, make inside the resin can fully fill the decayed cavity, avoid appearing the space.

Description

Resin filler for tooth restoration

Technical Field

The invention relates to the technical field of tooth restoration, in particular to a resin filler for tooth restoration.

Background

Tooth defects are common diseases in clinic of oral cavity, wherein caries is a main reason of the tooth defects, when a caries hole is formed on a tooth of a person, a filling method is generally adopted clinically, and the defects on the surface of the tooth are filled by using a composite resin material so as to achieve the purpose of filling and firming the tooth.

When the composite resin is used for filling the cavity, the resin is easy to generate gaps in the cavity, so that the resin cannot be fully contacted and combined with the inner wall of the cavity, and the resin prosthesis is easy to fall off. In order to fully fill the resin into the cavity and avoid gaps, the resin is injected in a mode of injecting the resin in multiple times, the resin is injected again after being compacted every time, until the cavity is completely filled, the residual space of the cavity is reduced along with the increase of the injection of the resin, if the size of an injection opening is fixed, a user is difficult to control the flow of the resin, the condition of excessive injected resin often occurs at last, and a large amount of resin is still overflowed after the resin is compacted, so that waste is caused.

The reference CN201921988581.9 provides a dentistry filling resin filling device convenient to change and fill bore, through set up first snap ring and second snap ring at filling tube and needle tubing junction, puts into the snap ring with the filling hole of different models and presss from both sides tightly, can change the filling head, realizes changing the effect of filling the bore, and rethread promotes smooth button, adjusts holding rod length to convenient to use.

However, the operation of replacing the filling head of the device is complicated, the required filling head needs to be taken out from the pinhole cavity, the clamping ring needs to be loosened to take out the original filling head, and finally the required filling head is arranged in the clamping ring and clamped, so that the time is extremely wasted, and the filling head only has fixed size and can not be adjusted at will according to actual conditions; in addition, after the resin is injected, an additional tool is needed to press the resin, so that the resin is fully filled in the cavity, but an operator needs to alternately use the filling tool and the pressing tool in a crossing manner in the tooth repairing process, the operation is troublesome, and bacterial infection is easily caused by switching the tools back and forth.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a resin filler for tooth restoration, which has the advantages of convenient adjustment of the size of a resin injection opening, integration of a pressing mechanism for compacting resin and the like, and solves the problems that the operation of replacing a resin filling head in a comparison file is troublesome and a tool is required to be additionally used for pressing the resin.

(II) technical scheme

In order to solve the technical problems that the resin filling head in the comparison file is troublesome to replace and needs to be pressed by an additional tool, the invention provides the following technical scheme:

a resin filler for tooth restoration comprises a filler main body, a caliber adjusting mechanism, a resin push-out mechanism and a pressing mechanism, wherein the filler main body comprises a liquid storage cylinder and an injection head connected to the lower end of the liquid storage cylinder, and the resin push-out mechanism and the caliber adjusting mechanism are both arranged in the liquid storage cylinder;

the resin pushing mechanism is used for applying pressure to the resin in the liquid storage cylinder so that the resin is injected into the carious cavity of the tooth through the injection head;

the aperture adjusting mechanism comprises a first blocking piece and a second blocking piece, the first blocking piece and the second blocking piece are arranged into two equal-size semi-circles which can rotate around the circle center relatively, and the aperture adjusting mechanism is used for adjusting the size of the resin injection opening by adjusting the size of the overlapping area of the first blocking piece and the second blocking piece;

and a fixed cylinder is arranged on one side of the injection head, and the pressing mechanism is arranged in the fixed cylinder and can extend out from an opening at the lower end of the fixed cylinder to compact the resin injected into the caries.

Preferably, the caliber adjusting mechanism further comprises an adjusting rod, a fixed shaft and a through hole, the adjusting rod and the fixed shaft are respectively and fixedly connected to the circle centers of the upper surface and the lower surface of the second baffle plate, and the first baffle plate is rotatably connected to the surface of the fixed shaft through the through hole;

the mounting groove has been seted up to liquid storage cylinder bottom inner wall surface, first separation blade with the equal joint of second separation blade is in inside the mounting groove, the lateral wall of first separation blade with mounting groove inner wall fixed connection, the lateral wall of second separation blade with mounting groove inner wall sliding connection.

Preferably, resin ejecting mechanism includes piston, push rod and handle, the piston lateral wall with the liquid storage cylinder inner wall pastes just piston bottom profile with liquid storage cylinder bottom inner wall profile phase-match, push rod fixed connection be in the piston upper end, the handle sets up the push rod top.

Preferably, the two sides of the surface of the adjusting rod are provided with clamping blocks, the lower end face of the piston is provided with a clamping groove, the clamping groove extends to the inside of the push rod, and the adjusting rod and the clamping blocks are in sliding clamping connection in the clamping groove.

Preferably, push rod one side is provided with indicating mechanism, indicating mechanism includes connecting rod and pointer, pointer fixed connection be in connecting rod one end, the liquid storage cylinder upper end is provided with spacing mouthful, the pointer sets up spacing mouthful up end.

Preferably, a first sliding block is arranged at the other end of the connecting rod, a first guide groove is formed in the surface of the push rod, and the first sliding block is slidably mounted in the first guide groove;

the pointer lower surface is provided with the second slider, the second guide way of semicircular is seted up on spacing mouthful surface, second slider slidable mounting be in inside the second guide way.

Preferably, the surface of the limiting opening is provided with scale marks, the two ends of each scale mark are respectively provided with a minimum scale and a maximum scale, and the scale marks, the minimum scales and the maximum scales encircle the second guide groove.

Preferably, the pressing mechanism comprises a pressing head, a pressing rod and an adjusting handle, the pressing rod is slidably mounted inside the fixed cylinder, and the pressing head is arranged at the lower end of the outer portion of the fixed cylinder.

Preferably, the fixed cylinder surface has vertically seted up the spout, the spacing groove has all been seted up at the spout both ends, adjust the handle run through the spout with the spacing groove extends to the fixed cylinder outside.

Preferably, the surface of the side wall of the piston is provided with a rubber ring.

(III) advantageous effects

Compared with the prior art, the invention provides a resin filler for tooth restoration, which has the following beneficial effects:

1. this resin filling ware for tooth restoration, through the size that resin injection mouth was adjusted to inside bore adjustment mechanism that sets up of liquid storage cylinder, and then adjust the resin input, avoid appearing the too much condition of injected resin, reduce extravagantly, this bore adjustment mechanism has set up and has wound the relative pivoted first separation blade and second separation blade in the centre of a circle, it rotates around the axle to drive the second separation blade through rotating the regulation pole, make the size in first separation blade and second separation blade overlapping region adjustable, and then the opening size that first separation blade and second separation blade formed can be adjusted at will, with this input of controlling resin.

2. This resin filling ware for tooth restoration, it rotates to drive push rod and piston through rotating the handle, make the joint rotate along with it at the inside regulation pole of draw-in groove and fixture block, drive the second separation blade and rotate, and then adjust the resin injection volume, indicating mechanism rotates along with the push rod simultaneously, the second slider slides along the second guide way, lead for the pointer, correspond the open-ended not equidimension that first separation blade and second separation blade formed respectively during the directional different scale marks of pointer, with this size that conveniently adjusts the resin filling opening.

3. This resin filling ware for tooth restoration through set up collapsible pressing means in injection head one side, can not hinder the injection head when pressing means gathers up and extrude resin, and can press down the resin that pours into the carious hole when pressing means's pressing head stretches out, inside making the resin can fully fill the carious hole, avoid appearing the space, prevent that the resin prosthesis from droing, pressing means conveniently switches, need not place alone, avoids causing the bacterial infection.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an elevational, cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the filler body of the present invention;

FIG. 4 is an exploded view of the aperture adjustment mechanism of the present invention;

FIG. 5 is a schematic view showing the structure of a resin ejection mechanism according to the present invention;

FIG. 6 is a schematic view of the indicating mechanism of the present invention;

fig. 7 is a schematic structural diagram of the pressing mechanism of the present invention.

In the figure: 1. a liquid storage cylinder; 2. an injection head; 3. a first baffle plate; 4. a second baffle plate; 5. a fixed cylinder; 6. adjusting a rod; 7. a fixed shaft; 8. a through hole; 9. a piston; 10. a push rod; 11. a grip; 12. a clamping block; 13. a card slot; 14. a connecting rod; 15. a pointer; 16. a limiting port; 17. a first slider; 18. a first guide groove; 19. a second slider; 20. a second guide groove; 21. scale lines; 22. a minimum scale; 23. maximum scale; 24. a pressing head; 25. a pressure lever; 26. adjusting the handle; 27. a chute; 28. a limiting groove; 29. mounting grooves; 30. a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

Referring to fig. 1 to 7, a resin filler for dental restoration includes a filler body, a caliber adjusting mechanism, a resin pushing mechanism and a pressing mechanism,

the filler main body comprises a liquid storage cylinder 1 and an injection head 2 connected to the lower end of the liquid storage cylinder 1, and a resin push-out mechanism and a caliber adjusting mechanism are both arranged in the liquid storage cylinder 1;

the resin pushing mechanism is used for applying pressure to the resin in the liquid storage cylinder 1 so that the resin is injected into the dental cavity of the tooth through the injection head 2;

the caliber adjusting mechanism comprises a first baffle 3 and a second baffle 4, the first baffle 3 and the second baffle 4 are arranged into two equal-size semi-circles which can rotate around the circle center relatively, and the caliber adjusting mechanism is used for adjusting the size of the resin injection opening by adjusting the size of the overlapped area of the first baffle 3 and the second baffle 4;

one side of the injection head 2 is provided with a fixed cylinder 5, and a pressing mechanism is arranged in the fixed cylinder 5 and can extend out from the opening at the lower end of the fixed cylinder 5 to compact the resin injected into the carious cavity.

Furthermore, the caliber adjusting mechanism also comprises an adjusting rod 6, a fixed shaft 7 and a through hole 8, the adjusting rod 6 and the fixed shaft 7 are respectively and fixedly connected to the circle centers of the upper surface and the lower surface of the second baffle plate 4, the first baffle plate 3 is rotatably connected to the surface of the fixed shaft 7 through the through hole 8, and therefore the second baffle plate 4 can be driven to rotate around the fixed shaft 7 by rotating the adjusting rod 6;

mounting groove 29 has been seted up to 1 bottom inner wall surface of liquid storage cylinder, first separation blade 3 and the equal joint of second separation blade 4 are inside mounting groove 29, the lateral wall and the 29 inner wall fixed connection of mounting groove of first separation blade 3, the lateral wall and the 29 inner wall sliding connection of mounting groove of second separation blade 4, thereby mounting groove 29 carries on spacingly to first separation blade 3 and second separation blade 4, can change the size of the overlapping region of first separation blade 3 and second separation blade 4 when second separation blade 4 rotates, change the open-ended size that first separation blade 3 and second separation blade 4 formed promptly, make the size of resin filling opening can be adjusted at will, the injection volume of convenient control resin.

Further, resin ejecting mechanism includes piston 9, push rod 10 and handle 11, 9 lateral walls of piston and 1 inner wall of liquid storage cylinder paste and piston 9 bottom end profile and 1 bottom end inner wall profile phase-match in liquid storage cylinder, push rod 10 fixed connection is in the upper end of piston 9, handle 11 sets up on the 10 tops of push rod, thereby it can drive piston 9 and slide along the inner wall of liquid storage cylinder 1 to promote handle 11, and then strengthen 1 inside atmospheric pressure of liquid storage cylinder, extrude injection head 2 from the opening part that first separation blade 3 and second separation blade 4 formed with the resin, and pour into in the carious cavity of tooth into from injection head 2.

Further, adjust 6 surperficial both sides of pole and all be provided with fixture block 12, piston 9 lower terminal surface has been seted up draw-in groove 13 and draw-in groove 13 extends to set up to push rod 10 inside, adjust pole 6 and fixture block 12 slip joint inside draw-in groove 13, thereby when rotating handle 11 and driving push rod 10 and piston 9 and rotate, can drive and adjust pole 6 and fixture block 12 and rotate thereupon, and then drive second separation blade 4 and rotate, reach and adjust first separation blade 3 and second separation blade 4 and form the purpose of open-ended size, the injection amount of control resin.

Further, push rod 10 one side is provided with indicating mechanism, and indicating mechanism rotates along with push rod 10, can form open-ended size through indicating mechanism to first separation blade 3 and second separation blade 4 and measure the sign, is convenient for control opening size, and indicating mechanism includes connecting rod 14 and pointer 15, and pointer 15 fixed connection is in connecting rod 14 one end, and 1 upper end of liquid storage barrel is provided with spacing mouthful 16, and pointer 15 sets up at spacing mouthful 16 up end.

Further, a first sliding block 17 is arranged at the other end of the connecting rod 14, a first guide groove 18 is formed in the surface of the push rod 10, and the first sliding block 17 is slidably mounted inside the first guide groove 18, so that the indicating mechanism can slide up and down along the first guide groove 18 through the first sliding block 17;

the lower surface of the pointer 15 is provided with a second sliding block 19, the surface of the limiting opening 16 is provided with a semicircular second guide groove 20, and the second sliding block 19 is slidably mounted inside the second guide groove 20, so that when the indicating mechanism rotates along with the push rod 10, the second sliding block 19 slides along the second guide groove 20 to guide the pointer 15.

Furthermore, the surface of the limiting opening 16 is provided with scale marks 21, the two ends of the scale marks 21 are respectively provided with a minimum scale 22 and a maximum scale 23, and the scale marks 21, the minimum scale 22 and the maximum scale 23 are arranged around the second guide groove 20, so that the pointer 15 respectively corresponds to the first blocking piece 3 and the second blocking piece 4 to form different sizes of openings when pointing to different scale marks 21, and when the pointer 15 points to the minimum scale 22, the pointer represents that the first blocking piece 3 and the second blocking piece 4 are not overlapped completely to form a circular blocking piece, the injection opening is closed, and resin cannot be injected; when the pointer 15 points to the maximum scale 23, it represents that the first blocking plate 3 and the second blocking plate 4 are completely overlapped, the injection port is semicircular, and the injection port is maximum.

Further, pressing mechanism includes press head 24, depression bar 25 and regulation handle 26, and depression bar 25 slidable mounting is inside fixed section of thick bamboo 5, and press head 24 sets up at the outside lower extreme of fixed section of thick bamboo 5, and press head 24 and the resin contact of injecting in the tooth cavity and press, can be with the resin compaction, make inside the cavity can fully be filled to the resin, avoid appearing the space.

Further, fixed 5 vertical spouts 27 of seting up in surface of section of thick bamboo, spacing groove 28 has all been seted up at spout 27 both ends, regulation handle 26 runs through spout 27 and spacing groove 28 and extends to fixed 5 outsides of section of thick bamboo, thereby the pulling is adjusted handle 26 and is slided along spout 27, can drive depression bar 25 and slide along the inner wall of fixed section of thick bamboo 5, and then adjust the position of pressing head 24, when adjusting handle 26 and slideing to spout 27 the top or bottom, pull and adjust handle 26 and block it into inside spacing groove 28, can make the highly fixed of pressing head 24.

Further, the surface of the side wall of the piston 9 is provided with a rubber ring 30, and the rubber ring 30 can enhance the sealing performance between the piston 9 and the inner wall of the liquid storage cylinder 1 so as to ensure that the resin in the liquid storage cylinder 1 can be sprayed out at a certain pressure.

The working principle is as follows: when the injection device is used, the injection head 2 is aligned to a cleaned tooth cavity, the handle 11 is rotated to drive the push rod 10 and the piston 9 to rotate, so that the adjusting rod 6 and the clamping block 12 which are clamped in the clamping groove 13 rotate along with the adjusting rod, the second blocking piece 4 is driven to rotate, the size of the overlapped area of the first blocking piece 3 and the second blocking piece 4 is adjusted, meanwhile, the indicating mechanism rotates along with the push rod 10, the second sliding block 19 slides along the second guide groove 20 to guide the pointer 15, and the pointer 15 respectively corresponds to the first blocking piece 3 and the second blocking piece 4 to form different sizes of openings when pointing to different scale marks 21, namely different resin injection amounts;

adjusting the opening formed by the first blocking piece 3 and the second blocking piece 4 to a proper caliber according to the size of the carious cavity, rotating the handle 11 until the pointer 15 points to a proper scale mark 21, then pushing the handle 11 to drive the piston 9 to slide along the inner wall of the liquid storage cylinder 1, enhancing the air pressure in the liquid storage cylinder 1, extruding resin into the injection head 2 from the opening formed by the first blocking piece 3 and the second blocking piece 4, and injecting the resin into the carious cavity of the tooth from the injection head 2, wherein the indicating mechanism slides downwards along the first guide groove 18 through the first sliding block 17 in the process, and the normal work of the resin pushing mechanism cannot be hindered;

after injecting a proper amount of resin, rotating the handle 11 until the pointer 15 points to the minimum scale 22, wherein the first blocking piece 3 and the second blocking piece 4 are not overlapped completely to form a circular blocking piece, the injection opening is closed, and the resin cannot be injected continuously; pulling the adjusting handle 26 to slide along the sliding groove 27, pulling the adjusting handle 26 to be clamped into the limiting groove 28 at the bottom end when the adjusting handle 26 slides to the lowest end of the sliding groove 27, enabling the pressing head 24 to extend out and fix the height, placing the pressing head 24 on the surface of resin injected into the dental caries cavity, and repeatedly vibrating and pressing to enable the resin to fully fill the dental caries cavity so as to avoid gaps;

the injection and pressing operations are repeated until the cavity is to be filled, the handle 11 is rotated to adjust the injection port formed by the first blocking piece 3 and the second blocking piece 4 to be smaller in size, so that the injection amount of the resin is reduced, the resin is injected again and compacted, the cavity is filled with the resin, and the waste caused by the fact that a large amount of resin overflows from the cavity can be effectively avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A resin filler for dental restoration, comprising a filler main body and a resin push-out mechanism, characterized in that: the device also comprises a caliber adjusting mechanism and a pressing mechanism;

the filler main body comprises a liquid storage cylinder (1) and an injection head (2) connected to the lower end of the liquid storage cylinder, and the resin push-out mechanism and the caliber adjusting mechanism are both arranged in the liquid storage cylinder (1);

the resin pushing mechanism is used for pressing the resin in the liquid storage cylinder (1) so that the resin is injected into the dental cavity of the tooth through the injection head (2).

2. A resin applier for dental restoration according to claim 1, wherein:

the caliber adjusting mechanism comprises a first blocking piece (3) and a second blocking piece (4), the first blocking piece (3) and the second blocking piece (4) are arranged into two equal-size semi-circles which can rotate around the circle center relatively, and the caliber adjusting mechanism is used for adjusting the size of a resin injection opening by adjusting the size of the overlapping area of the first blocking piece (3) and the second blocking piece (4); the caliber adjusting mechanism further comprises an adjusting rod (6), a fixed shaft (7) and a through hole (8), the adjusting rod (6) and the fixed shaft (7) are respectively and fixedly connected to the circle centers of the upper surface and the lower surface of the second baffle sheet (4), and the first baffle sheet (3) is rotatably connected to the surface of the fixed shaft (7) through the through hole (8);

mounting groove (29) have been seted up to liquid storage cylinder (1) bottom inner wall surface, first separation blade (3) with the equal joint of second separation blade (4) is in inside mounting groove (29), the lateral wall of first separation blade (3) with mounting groove (29) inner wall fixed connection, the lateral wall of second separation blade (4) with mounting groove (29) inner wall sliding connection.

3. A resin applier for dental restoration according to claim 2, wherein:

resin ejecting mechanism includes piston (9), push rod (10) and handle (11), piston (9) lateral wall with liquid storage cylinder (1) inner wall pastes mutually just piston (9) bottom profile with liquid storage cylinder (1) bottom inner wall profile phase-match, push rod (10) fixed connection be in piston (9) upper end, handle (11) set up push rod (10) top.

4. A resin applier for dental restoration according to claim 2 or 3, wherein: the adjusting rod is characterized in that clamping blocks (12) are arranged on two sides of the surface of the adjusting rod (6), a clamping groove (13) is formed in the lower end face of the piston (9), the clamping groove (13) extends to the inside of the push rod (10), the adjusting rod (6) and the clamping blocks (12) are in sliding clamping connection with the inside of the clamping groove (13), and a rubber ring (30) is arranged on the surface of the side wall of the piston (9).

5. A resin applier for dental restoration according to claim 3, wherein: push rod (10) one side is provided with indicating mechanism, indicating mechanism includes connecting rod (14) and pointer (15), pointer (15) fixed connection be in connecting rod (14) one end, liquid storage cylinder (1) upper end is provided with spacing mouthful (16), pointer (15) set up spacing mouthful (16) up end.

6. A resin applier for dental restoration according to claim 4, wherein: a first sliding block (17) is arranged at the other end of the connecting rod (14), a first guide groove (18) is formed in the surface of the push rod (10), and the first sliding block (17) is slidably mounted in the first guide groove (18);

the lower surface of the pointer (15) is provided with a second sliding block (19), the surface of the limiting opening (16) is provided with a semi-annular second guide groove (20), and the second sliding block (19) is slidably mounted inside the second guide groove (20).

7. A resin applier for dental restoration according to claim 5, wherein: the surface of the limiting opening (16) is provided with scale marks (21), the two ends of each scale mark (21) are respectively provided with a minimum scale (22) and a maximum scale (23), and the scale marks (21), the minimum scale (22) and the maximum scale (23) encircle the second guide groove (20).

8. A resin applier for dental restoration according to claim 6, wherein: the pressing mechanism comprises a pressing head (24), a pressing rod (25) and an adjusting handle (26), the pressing rod (25) is installed inside the fixed cylinder (5) in a sliding mode, and the pressing head (24) is arranged at the lower end of the outer portion of the fixed cylinder (5).

9. A resin applier for dental restoration according to claim 7, wherein:

injection head (2) one side is provided with a fixed cylinder (5), pressing means sets up fixed cylinder (5) inside and can certainly the resin compaction that will pour into the carious hole is stretched out to fixed cylinder (5) lower extreme opening part, fixed cylinder (5) surface is vertical has seted up spout (27), spacing groove (28) have all been seted up at spout (27) both ends, adjust handle (26) run through spout (27) with spacing groove (28) extend to fixed cylinder (5) outside.