CN219579076U

CN219579076U - MTA filler

Info

Publication number: CN219579076U
Application number: CN202320685635.4U
Authority: CN
Inventors: 寺内吉继; 鲁成旺; 陆友; 唐鹏; 詹剑锋
Original assignee: Guilin Woodpecker Medical Instruments Co Ltd
Current assignee: Guilin Woodpecker Medical Instruments Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-25
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the technical field of dental medical appliances, and particularly discloses an MTA (methyl thiazolyl tetrazolium) filler which comprises a handle, a sliding block, a pushing component and a filling pipe, wherein the sliding block is slidably arranged outside the handle, the pushing component is movably arranged in the handle and fixedly connected with the sliding block, the pushing component is driven to move through the sliding block so as to push out MTA in the filling pipe, one end of the filling pipe is provided with a pipe notch capable of being filled with the MTA, and the other end of the filling pipe is connected with one end of the handle through a rotary connecting structure so that the filling pipe can rotate relative to the handle to adjust the relative angle between the pipe notch and the sliding block. The MTA filler can adjust the relative angle between the pipe notch and the sliding block, and is convenient for operators to carry out MTA filling operation.

Description

MTA filler

Technical Field

The utility model relates to the technical field of dental medical instruments, in particular to an MTA filler.

Background

MTA (ministrator oxide aggregate, MTA) is a trioxymineral polymer, also called "root canal cement", a novel biomaterial, invented by the university of LomaLinda, USA for more than 90 th century, and has been approved by the FDA of USA. The MTA has good biocompatibility, can effectively promote tissue regeneration, has good antibacterial and bacteriostatic properties, is nontoxic to tissues, and has lasting sealing property, so that the success rate of lateral puncture repair and root tip filling is greatly improved, and therefore, the MTA is widely applied to oral treatment such as root canal filling, root canal perforation repair, root canal internal absorption repair filling, marrow covering, root tip forming and the like.

Endodontic treatment, also known as endodontic treatment, is a procedure in oral treatment to treat pulp necrosis and root infections. The specific process is that firstly, the infected nerve tissue in dental pulp is removed, in order to prevent the root canal from being further infected, the root canal needs to be filled, the root canal is tightly filled with a material with good biocompatibility, dead space is eliminated, the root tip hole is closed, and bacteria are prevented from invading the root canal again. Finally filling the dental crowns with resin material to complete root canal treatment.

At present, in domestic root canal treatment, a corresponding MTA special filler convenient for manual operation does not exist, and most MTA fillers existing in the market are simpler in structure and inconvenient to operate. For example, patent publication CN207118939U discloses a special MTA filler, which can be used for filling MTA material, but a pushing rod of the filler is fixedly installed on a handle, during the filling process of MTA, the end of the pushing rod is often required to be rotated by different angles to perform filling operation, an operator can only operate by rotating the handle, and when the required rotation angle is large, the operation of the operator is very inconvenient.

Disclosure of Invention

The utility model aims to at least solve one of the above-mentioned technical problems, and provides an MTA filler which can adjust the relative angle between a pipe notch and a sliding block and is convenient for an operator to carry out the filling operation of MTA.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a MTA fills ware, includes handle, slider, pushing component and filling pipe, and slider slidable installs in the handle outside, and pushing component movable installs in the handle and is connected with the slider, through slider drive pushing component motion, can release the MTA in the filling pipe, and the one end of filling pipe is provided with the pipe breach that can pack MTA, and the other end is connected with the wherein one end of handle through rotating connection structure for the filling pipe can rotate relative handle, with the relative angle between regulation pipe breach and the slider.

Preferably, the pushing assembly comprises a pushing block and a piston assembly, the pushing block is fixedly connected with the sliding block, one end of the piston assembly is connected with the pushing block, and a pushing rod matched with the inner diameter of the filling pipe is arranged at the other end of the piston assembly.

Preferably, the handle is internally provided with a cavity along the length direction thereof, and the push block and the piston assembly are slidably arranged in the cavity.

Preferably, a sliding groove communicated with the cavity is formed in the surface of the handle, and the sliding block is slidably arranged in the sliding groove.

Preferably, the rotary connecting structure comprises a first connecting head, a filling pipe is arranged at one end of the first connecting head, a connecting part in rotary fit with the end part of the handle is arranged at the other end of the first connecting head, and an O-shaped ring is sleeved on the connecting part.

Preferably, the rotary connecting structure comprises a pipe joint, a second connector and a thread bush, wherein the second connector can be fixedly arranged at the end part of the handle, the thread bush is rotatably arranged inside the second connector, a filling pipe is arranged at one end of the pipe joint, and the other end of the pipe joint can be inserted into the second connector to be in threaded fit with the thread bush.

Preferably, the second connector is in threaded connection with the end of the handle.

Preferably, an O-shaped ring is arranged at the end part of the pipe joint, and the O-shaped ring is in friction fit with one end of the second joint, which is far away from the handle.

Preferably, a pressurizing needle is mounted at the other end of the handle.

Preferably, the pressurizing needle is fixedly arranged on the needle seat, and the needle seat is in threaded connection with the end part of the handle.

The beneficial effects are that: compared with the prior art, the MTA filler is convenient for an operator to add MTA into the filling pipe from the pipe notch by arranging the pipe notch at the end part of the filling pipe, and meanwhile, the filling pipe is rotationally connected with the handle by the rotating connection structure, so that the filling pipe can be rotated according to the needs in the filling process to adjust the relative angles of the pipe notch and the sliding block, the pipe notch can face to filling positions in different directions in an oral cavity, the condition of the filling positions can be observed by the operator in the filling process through the pipe notch, a large-amplitude rotating arm of the operator is not needed in the filling operation of various angles, and the filling operation of the operator is convenient.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic perspective view of an MTA filler according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of an MTA filler according to the present utility model;

FIG. 3 is a schematic view of one embodiment of a rotational connection;

fig. 4 is a schematic view of another embodiment of a rotational connection.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, as well as being disposed not only in an intermediate position but also in both ends as far as they are within the scope defined by the intermediate position. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, an MTA filler comprises a handle 1, a sliding block 2, a pushing component and a filling pipe 3, specifically, the sliding block 2 is slidably installed outside the handle 1, so that an operator can conveniently hold the handle and then drive the sliding block 2 to move through a thumb, the pushing component is movably installed in the handle 1 and is connected with the sliding block 2, the pushing component is driven to move through the sliding block 2, the MTA in the filling pipe 3 can be pushed out, one end of the filling pipe 3 is provided with a pipe notch 4 capable of being filled with the MTA, and the other end of the filling pipe is connected with one end of the handle 1 through a rotary connecting structure, so that the filling pipe 3 can rotate relative to the handle 1, and the relative angle between the pipe notch 4 and the sliding block 2 can be adjusted.

Compared with the prior art, the MTA filler is convenient for an operator to add MTA into the filling pipe 3 from the pipe notch 4 by arranging the pipe notch 4 at the end part of the filling pipe 3, and meanwhile, the filling pipe 3 is rotationally connected with the handle 1 by the rotating connection structure, so that the filling pipe 3 can be rotated according to the needs in the filling process to adjust the relative angles of the pipe notch 4 and the sliding block 2, the pipe notch 4 can face to filling positions in different directions in an oral cavity, the condition that the operator observes the filling positions through the pipe notch 4 in the filling process is convenient, the operator does not need to rotate arms in a large range in the filling operation of various angles, and the filling operation of the operator is convenient.

In one embodiment, the pushing assembly may include a pushing block 5 and a piston assembly, where the pushing block 5 is fixedly connected with the sliding block 2, and one end of the piston assembly is connected with the pushing block 5, and the other end is provided with a push rod 8 matched with the inner diameter of the filling tube 3. Specifically, the piston assembly comprises a plug body 6 and a plug rod 7, one end of the plug body 6 is fixedly connected with the plug rod 7, the other end of the plug body is provided with a clamping groove matched with the push block 5 in a clamping manner, and the push block 5 is matched with the plug body 6 in a clamping manner, so that the push block 5 can drive the piston assembly to synchronously move; push rod 8 fixed mounting keeps away from the one end of cock body 6 at cock stem 7, and push rod 8 can stretch into in filling pipe 3, and the external diameter of push rod 8 and the internal diameter phase-match of filling pipe 3, drive ejector pad 5 through slider 2 and move towards filling pipe 3, can drive piston assembly synchronous motion to make push rod 8 release the MTA in the filling pipe 3.

In one specific embodiment, the handle 1 may be provided in a tubular shape, and the interior of the handle 1 is provided with a cavity 9 along the length direction thereof, and the push block 5 and the piston assembly are both installed in the cavity 9 and can slide along the length direction of the cavity 9. Further, the surface of the handle 1 can be provided with a chute 10 communicated with the cavity 9, the sliding block 2 is slidably arranged in the chute 10, the chute 10 is arranged along the length direction of the handle 1, the sliding block 2 can be limited through the chute 10, the sliding block 2 can only slide forwards and backwards along the length direction of the chute 10 during operation, and the sliding block 2 can be fixedly connected with the pushing block 5 through a screw, so that the sliding block 2 can be conveniently disassembled and assembled.

In the present utility model, the rotational connection between the filling tube 3 and the handle 1 can be achieved in various embodiments. As shown in fig. 3, in one embodiment of the rotary connection structure, the rotary connection structure may include a first connector 11, one end of the first connector 11 is provided with a filling tube 3, the other end of the first connector 11 is provided with a connecting portion 12 rotationally matched with the end of the handle 1, the connecting portion 12 is cylindrical, the end of the handle 1 is provided with a mounting hole rotationally matched with the connecting portion 12, the connecting portion 12 is inserted into the mounting hole to realize the rotary connection between the first connector 11 and the end of the handle 1, an O-ring 13 is sleeved on the connecting portion 12, and the axial pretightening force between the first connector 11 and the end of the handle 1 can be improved through the friction fit between the O-ring 13 and the inner wall of the mounting hole, so that the first connector 11 is not easy to be separated from the end of the handle 1 after being mounted, and meanwhile, the first connector 11 can realize stable positioning after rotating relative to the handle 1. In this embodiment, a perforation is provided in the first connection head 11, so that the push rod 8 can be inserted into the filling tube 3 through the perforation.

In another embodiment of the rotary connection structure, as shown in fig. 4, the rotary connection structure may include a pipe joint 14, a second connector 15 and a threaded sleeve 16, wherein the second connector 15 can be fixedly installed at the end of the handle 1, the threaded sleeve 16 is rotatably installed inside the second connector 15, one end of the pipe joint 14 is provided with a filling pipe 3, and the other end can be inserted into the second connector 15 to be in threaded engagement with the threaded sleeve 16. Specifically, be provided with the installation cavity in the second connector 15, threaded sleeve 16 rotatable setting is provided with an opening in the installation cavity, and the one side that the handle 1 was kept away from to the installation cavity, and open-ended bore is less than the external diameter of threaded sleeve 16, so that threaded sleeve 16 can not deviate from the opening, coupling 14 can pass the opening stretch into in the installation cavity with threaded sleeve 16 threaded connection, through the tip and the threaded sleeve 16 screw-thread fit of coupling 14, make coupling 14 can not deviate from on the second connector 15 after the installation, and make coupling 14 can rotate relative second connector 15, in order to realize the regulation of the relative angle between pipe breach 4 and the slider 2. In this embodiment, perforations are also provided in the pipe connection 14, so that the push rod 8 can extend into the filling pipe 3 through the installation chamber and the perforations in sequence. Further, the second connector 15 and the end part of the handle 1 can be fixedly connected in a threaded connection manner, so that the second connector 15 is convenient to disassemble and assemble, and the filling pipes 3 with different specifications are convenient to replace, so that the MTA filling operation with different specifications is adapted.

Further, the end of the pipe joint 14 may be fitted with an O-ring 13, and the O-ring 13 is friction fitted with the end of the second joint 15 remote from the handle 1. Specifically, the O-ring 13 is embedded on the surface of the second connector 15 facing the pipe joint 14, when the pipe joint 14 rotates relative to the second connector 15, the O-ring 13 can be in friction fit with the surface of the second connector 15, so that damping when the pipe joint 14 is adjusted in a rotating manner is increased, the pipe joint 14 is positioned more stably after the adjustment in a rotating manner, meanwhile, direct contact between the pipe joint 14 and the second connector 15 is avoided, and therefore the abrasion degree between the pipe joint 14 and the second connector is effectively reduced.

In one preferred embodiment of the utility model, the other end of the handle 1 may be fitted with a pressurizing needle 17 to effect both the filling and compacting operations of the MTA, which is more convenient. Further, the pressurizing needle 17 can be fixedly arranged on the needle seat 18, the needle seat 18 is in threaded connection with the end part of the handle 1, and the pressurizing needle 17 is convenient to disassemble and assemble by adopting a threaded connection fixed mounting mode, so that the pressurizing needles 17 with different specifications can be replaced conveniently to perform the MTA compacting operation.

When the filler is used, MTA can be added into the filling pipe 3 through the pipe notch 4, then the sliding block 2 is pushed to move forwards, so that the pushing block 5 is driven to slide forwards relative to the handle 1, the pushing rod 8 is driven to push the MTA out of the filling pipe 3, and the pushing block 5 is elastically connected with the cavity 9 through the tension spring 19, so that after filling is finished, the pushing block 5 can automatically move backwards under the action of the elastic force of the tension spring 19, and the MTA can be conveniently filled into the filling pipe 3 again and then is filled in subsequent operations.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present utility model should be covered in the scope of the technical solution of the present utility model.

Claims

1. The utility model provides a MTA fills ware, a serial communication port, including handle (1), slider (2), pushing away material subassembly and filling pipe (3), slider (2) slidable installs in handle (1) outside, pushing away material subassembly movable installation in handle (1) and be connected with slider (2), it is movable through slider (2) drive pushing away material subassembly, MTA in filling pipe (3) is released, the one end of filling pipe (3) is provided with can pack MTA's pipe breach (4), the other end is connected with the wherein one end of handle (1) through rotating connection structure, make filling pipe (3) can rotate relative handle (1), with the relative angle between regulation pipe breach (4) and slider (2).

2. An MTA filler according to claim 1, characterized in that the pushing assembly comprises a pushing block (5) and a piston assembly, the pushing block (5) is fixedly connected with the sliding block (2), one end of the piston assembly is connected with the pushing block (5), and the other end is provided with a pushing rod (8) matched with the inner diameter of the filling tube (3).

3. An MTA filler according to claim 2, characterized in that the interior of the handle (1) is provided with a cavity (9) along its length, the push block (5) and the piston assembly being slidably mounted in the cavity (9).

4. A MTA filler according to claim 3, characterized in that the surface of the handle (1) is provided with a chute (10) communicating with the cavity (9), and the slider (2) is slidably mounted in the chute (10).

5. An MTA filler according to claim 1, characterized in that the rotary connection structure comprises a first connector (11), a filling tube (3) is mounted at one end of the first connector (11), a connecting part (12) in rotary fit with the end of the handle (1) is arranged at the other end of the first connector (11), and an O-ring (13) is sleeved on the connecting part (12).

6. An MTA filler according to claim 1, characterized in that the rotary connection structure comprises a pipe joint (14), a second connector (15) and a threaded sleeve (16), the second connector (15) can be fixedly arranged at the end part of the handle (1), the threaded sleeve (16) is rotatably arranged inside the second connector (15), the filling pipe (3) is arranged at one end of the pipe joint (14), and the other end of the pipe joint (14) can be inserted into the second connector (15) to be in threaded fit with the threaded sleeve (16).

7. An MTA filler according to claim 6, characterized in that the second connector (15) is screwed with the end of the handle (1).

8. An MTA filler according to claim 6, characterized in that the end of the pipe joint (14) is fitted with an O-ring (13), and that the O-ring (13) is friction fitted with the end of the second connector (15) remote from the handle (1).

9. An MTA filler according to claim 1, characterized in that the other end of the handle (1) is fitted with a pressurizing needle (17).

10. An MTA filler according to claim 9, characterized in that the pressurizing needle (17) is fixedly mounted on a needle holder (18), the needle holder (18) being in threaded connection with the end of the handle (1).