CN111166517B

CN111166517B - A dental prosthetic gingival retractor

Info

Publication number: CN111166517B
Application number: CN202010110820.1A
Authority: CN
Inventors: 林苇
Original assignee: First Affiliated Hospital of Anhui Medical University
Current assignee: First Affiliated Hospital of Anhui Medical University
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2021-04-20
Anticipated expiration: 2040-02-24
Also published as: CN111166517A

Abstract

The present invention belongs to the technical field of gingival retractors, in particular to a gingival retractor for oral restoration. The following solution is now proposed, including a hand-held part, both ends of the hand-held part are provided with extension rods, and the extension rods are far away from the hand-held part. An elastic plate with a circular arc structure is fixed at one end, and a pressing portion is installed at one end of the elastic plate away from the extension rod. One side of the handle portion is provided with two sets of slideways symmetrically arranged along the middle thereof. There are adjustment mechanisms installed inside. The invention adsorbs the gingival retraction cord on the pressing sheet at the front end of the gingival retractor before implantation, so as to avoid the problem of the gingival retraction cord falling off due to collision with body fluid adsorption when the gingival retraction cord extends into the gingival sulcus, and it is convenient to clamp the gingival retraction cord. Hold it fixed, and at the same time, during implantation, the gingival retraction cord is gradually blown into the gingival sulcus along its length along the implantation progress, which is convenient for medical staff to perform gingival retraction operation.

Description

Gingival retraction device for oral restoration

Technical Field

The invention relates to the technical field of gingival retraction devices, in particular to an oral restoration gingival retraction device.

Background

Gingival retraction is the placement of a retraction cord within the gingival sulcus of the tooth such that a gap is formed between the margin of the prepared tooth and the gingiva. The gingival retraction has the advantages that: 1. the gingival retraction is convenient for the preparation of a tooth body, the gingival retraction before the preparation of the tooth body can reduce the damage and bleeding to adjacent soft tissues when a subgingival shoulder is prepared, and a good space and a good visual field are provided for the subgingival preparation of the tooth body; 2. gingival retraction improves the accuracy of tooth preparation; 3. the gingival retraction before the impression is taken can help to obtain clearer impressions and models.

Among the prior art, the gingival retraction apparatus of impressing the gingival retraction line into the gingival sulcus includes the gingival retraction end of small circle slice and the handle of being connected with the gingival retraction end, the problem that the position is interfered with tooth can take place for the gingival retraction end when using for this kind of gingival retraction apparatus, thereby the gingival retraction line drops from the gingival retraction end because of leading to the gingival retraction line with the liquid contact in the middle of the oral cavity easily, if the gingival retraction line glues and is held the excessive tightening at the gingival retraction end and have and lead to the gingival retraction line inconvenient the planting in the gingival sulcus, need an oral cavity restoration gingival retraction apparatus for this reason.

Disclosure of Invention

The invention provides an oral cavity repairing gingival retraction device, which solves the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

an extension rod is arranged at each of two ends of the handheld portion, one end, far away from the handheld portion, of each extension rod is fixedly connected with an elastic plate of a circular arc-shaped structure, one end, far away from the extension rod, of each elastic plate is provided with a pressing portion, one side of the handheld portion is provided with two groups of slideways symmetrically arranged along the middle position of each slideway, and an adjusting mechanism is arranged inside each slideway;

the pressing part comprises a pressing sheet fixedly connected with the elastic plate, one end of the pressing sheet, which is far away from the elastic plate, is provided with an inwards sunken first clamping groove, two sides, which are adjacent to the elastic plate, of the pressing sheet are provided with second clamping grooves communicated with the first clamping grooves, one sides, which are close to each other, of the two groups of second clamping grooves are provided with first cavities inside the pressing sheet, one sides, which are close to each other, of the two groups of first cavities are reserved with second cavities at the front end of the pressing sheet, one end, which is far away from the second clamping grooves, of the second cavities is provided with a first channel, two sides of the first channel are provided with second channels communicated with the adjacent first cavities, and the first channels and the second channels are communicated with the slide way along;

adjustment mechanism includes the push pedal with slide sliding connection, and one side rigid coupling that the push pedal is close to adjacent extension rod has three parallel arrangement's of group push rods, and the push rod is kept away from one side of push pedal and is all installed the first unit of adsorbing, the second of adsorbing that contradict in proper order and adsorbs unit and third and adsorb the unit, and the bottom that first unit, second adsorbed unit and third adsorbed the unit all is connected with the trachea.

Preferably, the air pipe at the bottom of the first adsorption unit is communicated with the second channel at one side of the first channel, the air pipe at the bottom of the second adsorption unit is communicated with the first channel, and the air pipe at the bottom of the third adsorption unit is communicated with the second channel at the other side of the first channel.

Preferably, first absorption unit and slide inside wall rigid coupling, first absorption unit include hollow structure's casing, and the through-hole that cup joints with the push rod activity is seted up at the top of casing, and the piston board has been cup jointed in the inside slip of casing, and the first spring of contradicting with casing bottom inside wall is installed to the bottom of piston board, and the structure of first absorption unit, second absorption unit and third absorption unit is unanimous.

Preferably, first adsorption unit and second adsorb one side top that the unit is close to the third adsorption unit and all set up the first standing groove that sets up along handheld portion length direction, the second adsorbs the unit and the third adsorbs the unit and all sets up the second standing groove that sets up along handheld portion length direction near one side below of first adsorption unit, the second spring is all installed to the both sides that the unit was adsorbed to the second, the top and the first standing groove top inside wall of second spring are contradicted, the bottom and the second standing groove bottom inside wall of second spring are contradicted.

Preferably, a first air suction hole is formed between the second clamping groove and the first cavity, and a second air suction hole is formed between the first clamping groove and the second cavity.

Preferably, two sets of extending channels penetrating through the pressing sheet are arranged at one ends, far away from the first clamping grooves, of the second clamping grooves, and the extending channels are arranged along the direction of the rear end of the pressing sheet.

In the present invention,

through the handheld portion that sets up, the extension rod, the elastic plate, press the clamp plate, the preforming, first draw-in groove, the second cavity, first passageway, the second passageway, extend the passageway, the slide, the push pedal, the push rod, first absorption unit, the second absorption unit, the third absorption unit, the trachea, adsorb the scale and blow the scale, make this design adsorb the gum line on the preforming of gum ware front end before planting, avoid the gum line to lead to the problem appearance that the gum line dropped because of colliding body fluid absorption in stretching into the gingival sulcus, it is fixed that the convenience carries out the centre gripping to the gum line, simultaneously will arrange the gum line and gradually blow to the gingival sulcus along its length direction along with the planting progress when planting, make things convenient for medical personnel to carry out the gum operation.

Drawings

FIG. 1 is a schematic structural view of a gingival retraction device for oral restoration according to the present invention;

FIG. 2 is a schematic structural view of a gingival retraction device pressing plate for oral restoration according to the present invention;

FIG. 3 is a schematic structural diagram of a regulating mechanism of the gingival retraction device for oral restoration according to the present invention;

FIG. 4 is a partially enlarged structural view of a gingival retraction device for oral restoration according to the present invention;

fig. 5 is a schematic structural view of a hand-held part of an oral cavity repairing gingival retraction device provided by the invention.

In the figure: the device comprises a handheld part 1, an extension rod 2, an elastic plate 3, a pressing plate 4, a pressing plate 401, a first clamping groove 402, a second clamping groove 403, a second cavity 404, a first cavity 405, a first channel 406, a second channel 407, an extension channel 408, a slideway 5, a push plate 6, a push rod 7, a first adsorption unit 8, a second adsorption unit 9, a third adsorption unit 10, an air pipe 11, an adsorption mark 101 and an air blowing mark 102.

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.

Referring to fig. 1-5, an oral cavity repairing gingival retraction device comprises a handheld portion 1, extension rods 2 are arranged at two ends of the handheld portion 1, one end, far away from the handheld portion 1, of each extension rod 2 is fixedly connected with an elastic plate 3 with a circular arc-shaped structure, one end, far away from the extension rods 2, of each elastic plate 3 is provided with a pressing portion 4, one side of the handheld portion 1 is provided with two groups of slideways 5 symmetrically arranged along the middle position of each slideway, and an adjusting mechanism is arranged inside each slideway 5;

furthermore, the pressing portion 4 includes a pressing sheet 401 fixedly connected to the elastic plate 3, one end of the pressing sheet 401 far away from the elastic plate 3 is provided with an inwardly recessed first clamping groove 402, two adjacent sides of the pressing sheet 401 and the elastic plate 3 are provided with second clamping grooves 403 communicated with the first clamping grooves 402, one sides of the two groups of second clamping grooves 403 close to each other are provided with first cavities 405 located inside the pressing sheet 401, one sides of the two groups of first cavities 405 close to each other are reserved with second cavities 404 located at the front end of the pressing sheet 401, one end of the second cavities 404 far away from the second clamping grooves 402 is provided with a first channel 406, two sides of the first channel 406 are provided with second channels 407 communicated with the adjacent first cavities 405, and the first channels 406 and the second channels 407 are communicated with the slide 5 along the pressing sheet 401 and the end portion of the elastic plate 3 penetrating to the extension rod 2;

especially, adjustment mechanism includes the push pedal 6 with slide 5 sliding connection, and one side rigid coupling that push pedal 6 is close to adjacent extension rod 2 has three groups parallel arrangement's push rod 7, and push rod 7 keeps away from one side of push pedal 6 and all installs the first adsorption unit 8, second adsorption unit 9 and the third adsorption unit 10 of conflicting in proper order, and the bottom of first adsorption unit 8, second adsorption unit 9 and third adsorption unit 10 all is connected with trachea 11.

It should be noted that the air pipe 11 at the bottom of the first adsorption unit 8 is communicated with the second channel 407 at one side of the first channel 406, the air pipe 11 at the bottom of the second adsorption unit 9 is communicated with the first channel 406, and the air pipe 11 at the bottom of the third adsorption unit 10 is communicated with the second channel 407 at the other side of the first channel 406.

In addition,

first adsorption unit

8 and 5 inside wall rigid couplings of slide, first adsorption unit 8 include hollow structure's casing, and the through-hole that cup joints with push rod 7 activity is seted up at the top of casing, and the piston board has been cup jointed in the inside slip of casing, and the first spring of contradicting with casing bottom inside wall is installed to the bottom of piston board, and first adsorption unit 8, second adsorption unit 9 and third adsorption unit 10's structure are unanimous.

In addition, first adsorption unit 8 and second adsorb unit 9 and all offer the first standing groove that sets up along 1 length direction of handheld portion in one side top that is close to third adsorption unit 10, second adsorption unit 9 and third adsorb unit 10 and all offer the second standing groove that sets up along 1 length direction of handheld portion in one side below that is close to first adsorption unit 8, the second spring is all installed to the both sides that the unit 9 was adsorbed to the second, the top and the first standing groove top inside wall of second spring are contradicted, the bottom and the second standing groove bottom inside wall of second spring are contradicted.

Furthermore, a first air suction hole is formed between the second slot 403 and the first cavity 405, and a second air suction hole is formed between the first slot 402 and the second cavity 404.

Specifically, one end of each of the two groups of second slots 403, which is far away from the first slot 402, is provided with an extension channel 408 which penetrates through the pressing sheet 401, and the extension channels 408 are arranged along the direction of the rear end of the pressing sheet 401;

the first embodiment is as follows:

an adsorption mark 101 and an air blowing mark 102 are arranged on one side of the opening of the slideway 5, when one end of the push plate 6 reaches the adsorption mark 101, the piston plate in the first adsorption unit 8 is positioned at the position of one third to two thirds of the length of the shell, when the second adsorption unit 9 is static, the height of the second adsorption unit 9 extending out of the first adsorption unit 8 is not more than one third of the length of the shell, and when the third adsorption unit 10 is static, the height of the third adsorption unit 10 extending out of the second adsorption unit 9 is not more than one third of the length of the shell.

The working principle is as follows: when the gum drainage line is installed, the push plate 6 on the slide rail 5 is pushed towards the pressing plate 4, the push rod 7 at the top of the third adsorption unit 10 firstly extends into the shell from the through hole on the shell, meanwhile, the piston plate is pushed downwards and then moves downwards along with the push plate 6, so that the third adsorption unit 10 moves downwards along with the third adsorption unit, then the push rod 7 extends into the second adsorption unit 10, the piston plate in the second adsorption unit 9 is pushed to move in the same direction, when the second adsorption unit 9 moves downwards, the push plate 6 continues to move, the piston plate in the first adsorption unit 8 is pushed to move, at the moment, the third adsorption unit 10, the second adsorption unit 9 and the first adsorption unit 8 sequentially discharge the gas in the direction from the air pipe 11 to the tabletting 401, and simultaneously, the push plate 6 moves to the position of the adsorption mark 101, and at the moment, the first adsorption unit 8, the second adsorption unit 9 and the first adsorption unit 8 discharge the gas in sequence, The distance of one third of the height of the shell is reserved between the piston plate in the second adsorption unit 9 and the piston plate in the third adsorption unit 10 and the bottom of the shell, so that the gum line can be blown out conveniently and subsequently, one end of the gum line is attached to the inner part of the second clamping groove 403 to the first clamping groove 402 from the opening of the extension channel 408 along the direction from the second clamping groove 403 to the first clamping groove 402, when the push plate 6 is loosened, the piston plate moves upwards under the action of the second spring, the inner part of the shell is in a negative pressure state, the gum line is adsorbed, when the gum line is removed, the gum line is placed in the gingival sulcus, the push plate 6 is pushed downwards, when the push plate 6 moves along the adsorption mark 101 to the air blowing mark 102, the gum line is gradually blown along the sequential direction of the third adsorption unit 10, the second adsorption unit 9 and the first adsorption unit 8, so that the gum line is gradually attached to the inner part of the gingival sulcus along the length direction, this design will be arranged gum line and adsorb on the preforming of arranging gum ware front end before planting, avoid arranging gum line and appear stretching into the problem that the gum line dropped because of colliding the body fluid absorption and leading to arranging gum line in the gingival sulcus, it is fixed to conveniently carry out the centre gripping to arranging gum line, will arrange gum line and gradually blow along its length direction along with the planting progress to the gingival sulcus in the time of planting simultaneously, make things convenient for medical personnel to carry out the operation of arranging the gum.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A dental prosthesis gingival retractor, comprising a hand-held part (1), characterized in that both ends of the hand-held part (1) are provided with an extension rod (2), and the extension rod (2) is far away from the hand-held part An elastic plate (3) with a circular arc structure is fixed at one end of the part (1), and a pressing part (4) is installed at one end of the elastic plate (3) away from the extension rod (2). There are two sets of slideways (5) symmetrically arranged along its middle position on one side of the slideway, and an adjustment mechanism is installed inside the slideways (5);

The pressing portion (4) includes a pressing piece (401) fixedly connected with the elastic plate (3), and one end of the pressing piece (401) away from the elastic plate (3) is provided with a first card slot (402) recessed inward, and the pressing piece (401) (401) The two sides adjacent to the elastic plate (3) are provided with a second card slot (403) that communicates with the first card slot (402), and the two sets of second card grooves (403) are opened on one side close to each other There is a first cavity (405) located inside the tablet (401), and a second cavity (404) located at the front end of the tablet (401) is reserved on one side of the two groups of first cavities (405) close to each other, One end of the second cavity (404) away from the second slot (402) is provided with a first channel (406), and both sides of the first channel (406) are provided with a communication channel (405) communicating with the adjacent first cavity (405). The second channel (407), the first channel (406) and the second channel (407) are communicated with the slideway (5) along the pressing piece (401), the elastic plate (3) and the end of the extension rod (2);

The adjustment mechanism comprises a push plate (6) slidably connected with the slideway (5), and three groups of push rods (7) arranged in parallel are fixedly connected to one side of the push plate (6) close to the adjacent extension rod (2). 7) A first adsorption unit (8), a second adsorption unit (9) and a third adsorption unit (10) are installed on the side away from the push plate (6), the first adsorption unit (8), the The bottoms of the second adsorption unit (9) and the third adsorption unit (10) are connected with air pipes (11);

The gas pipe (11) at the bottom of the first adsorption unit (8) communicates with the second channel (407) on one side of the first channel (406), and the gas pipe (11) at the bottom of the second adsorption unit (9) is connected with the first channel (406) is communicated, and the air pipe (11) at the bottom of the third adsorption unit (10) is communicated with the second channel (407) on the other side of the first channel (406);

The first adsorption unit (8) is fixedly connected to the inner side wall of the slideway (5), and the first adsorption unit (8) comprises a shell with a hollow structure. A through hole, a piston plate is slidably sleeved inside the casing, the bottom of the piston plate is installed with a first spring that interferes with the inner wall of the bottom of the casing, a first adsorption unit (8), a second adsorption unit (9) and a third adsorption unit (9) The structure of the adsorption unit (10) is consistent;

A suction mark (101) and an air blow mark (102) are provided on one side of the opening of the slideway (5), and when one end of the push plate (6) reaches the suction mark (101), the first suction unit (8) The piston plate in the middle is located at the position of one-third to two-thirds of the casing, and the height of the second adsorption unit (9) protruding from the first adsorption unit (8) does not exceed one-third of the length of the casing when it is stationary. First, the height of the third adsorption unit (10) protruding from the second adsorption unit (9) does not exceed one third of the length of the casing when it is stationary.

2 . The gingival retractor for oral restoration according to claim 1 , wherein the first adsorption unit ( 8 ) and the second adsorption unit ( 9 ) are close to the side of the third adsorption unit ( 10 ). 3 . The upper part is provided with a first placement groove arranged along the length direction of the hand-held part (1), and the lower side of the second adsorption unit (9) and the third adsorption unit (10) close to the first adsorption unit (8) is provided with an edge. The second placement groove is arranged in the length direction of the hand-held part (1), and second springs are installed on both sides of the second adsorption unit (9). The bottom is in contact with the inner sidewall of the bottom of the second placing groove.

3. The gingival retractor for oral prosthetics according to claim 1, wherein a first suction hole is opened between the second clamping groove (403) and the first cavity (405), and the second A second suction hole is opened between the second cavity (404) of a card slot (402).

4. The gingival retractor for oral restoration according to claim 1, characterized in that, one end of the two sets of the second clamping grooves (403) away from the first clamping groove (402) is provided with a through-pressing sheet (402). 401) of the extension channel (408), and the extension channel (408) is arranged along the rear end direction of the pressing sheet (401).