CN208892799U - A kind of matrix holder - Google Patents

Abstract

The utility model discloses a kind of matrix holder, it is related to the field of medical instrument technology, including main body and clamping limb, the both ends of main body have been bent to form symmetrically arranged bending part, clamping limb is arranged on each bending part, clamping limb is L clevis gripping arm, clamping limb includes support portion and the clamping head perpendicular to support portion, one end of support portion is sheathed on bending part, the other end of support portion is connected with clamping head, two clamping heads are oppositely arranged and are formed with clamping gap, and clamping head is plastic cement clamping head, main body is super elastic marmen main body, main body also has super-elasticity under conditions of with certain mechanical strength, not only it ensure that clamping effect but also improved the applicability of main body, matrix holder good clamping effect, and it is used multiple times.

Description

A kind of matrix holder

Technical field

The utility model relates to the field of medical instrument technology, more particularly to a kind of matrix holder.

Background technique

Before Dental Erosion, dentist needs to clear up at infected tooth position, and carries out to dental body filled material Repair molding.When operation, first matrix band is placed on the side of tooth damage, adjusts its position, fit closely it with tooth body, Then chock is inserted into interdental interproximal space.The effect of chock is firm matrix band, and matrix band is made to be close to tooth neck, And facilitate the forming of obturation proximal surface neck, it prevents dental filling material indentation gingival sulcus formation from overhanging, damages periodontium, finally Matrix holder hair clip gripping arm is strutted with dentistry pliers, is placed in oral cavity, the contact point of the collet of matrix holder will place It between matrix band and chock, and pushes and pulls that make it more closely sealed with tooth body, to keep the relative position of matrix band and chock, prevents Only matrix band and chock are shifted or slipped out between tooth.

Currently, most common matrix holder is metal forming piece folder, metal forming piece presss from both sides the big firm grip of chucking power, clamping Effect is good, but is difficult to restore to the original state after strutting when clamping and being positioned to matrix not continue to use, poor for applicability, because This, provides a kind of good clamping effect, and reused matrix holder is current urgent problem to be solved.

Summary of the invention

The purpose of the utility model is to provide a kind of matrix holders to be made into solving the above-mentioned problems of the prior art Matrix-holder good clamping effect, and be used multiple times.

To achieve the above object, the utility model provides following scheme:

The utility model provides a kind of matrix holder, including main body and clamping limb, and the both ends of main body have been bent to form symmetrically The bending part of setting is arranged with clamping limb on each bending part, and clamping limb includes support portion and the clamping perpendicular to support portion One end of head, support portion is sheathed on bending part, and the other end of support portion is connected with clamping head, and support portion is L-shaped with clamping head, Two clamping heads are oppositely arranged and are formed with clamping gap, and clamping head is plastic cement clamping head, and main body is super elastic marmen master Body.

Preferably, protection cushion is provided on clamping head, protection cushion is the V-arrangement protection cushion that cross section is v-shaped structure, The inner wall of V-arrangement protection cushion and one end of clamping head fit.

Preferably, the lower end of V-arrangement protection cushion is provided with the V-shaped groove that chock can be made to pass through so that chock insertion adjacent two Interdental gap.

Preferably, two sides of V-arrangement protection cushion are the arc-shaped curved surface of indent and are used to make matrix band and tooth arc Surface fits closely.

Preferably, the two sides outer surface of V-arrangement protection cushion is embedded with anti-skid structure and the first support construction, the first support Structure is ebonite support construction, and anti-skid structure is flexible glue anti-skid structure, and anti-skid structure protrudes from the outer surface of V-arrangement protection cushion, The outer surface and V-arrangement protection cushion outer surface of first support construction are located on same curved surface.

Preferably, the two sides outer surface of V-arrangement protection cushion is arranged at intervals with anti-skid structure and the first support construction.

Preferably, the outer surface of support portion is evenly arranged with multiple for anti-skidding anti-skidding shrinkage pool.

Preferably, the inside of support portion is recessed to form limited position slot, and limiting slot cushion, and limiting slot are provided in limiting slot The second support construction is evenly arranged on cushion.

Preferably, under matrix holder working condition, the angle of plane and tooth top surface where main body is 8-12 degree.

Preferably, main body is U-shaped main body, and the cross section of main body is rectangle.

The utility model achieves following technical effect compared with the existing technology:

A kind of matrix holder provided by the utility model, main body are super elastic marmen main body, and main body has centainly Also there is super-elasticity under conditions of mechanical strength, not only ensure that clamping effect but also improved the applicability of main body, matrix holder folder Holding effect fruit is good, and is used multiple times.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without any creative labor, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is a kind of structural schematic diagram of matrix holder in the utility model；

Fig. 2 is a kind of top view of matrix holder in the utility model；

Fig. 3 is a kind of side view of matrix holder in the utility model；

In figure: 1- main body, 2- support portion, 3- clamping head, 4- clamping gap, 5-V shape protection cushion, 6-V shape slot, 7- are anti-skidding Structure, the first support construction of 8-, the anti-skidding shrinkage pool of 9-, 10- limiting slot cushion, the second support construction of 11-, 12-V shape protection cushion point End.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The purpose of the utility model is to provide a kind of matrix holders, of the existing technology to solve the problems, such as, make matrix band Good clamping effect is pressed from both sides, and is used multiple times.

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have Body embodiment is described in further detail the utility model.

The utility model provides a kind of matrix holder, as shown in Figure 1-Figure 3, including main body 1 and clamping limb, the two of main body 1 End has been bent to form symmetrically arranged bending part, and clamping limb is arranged on each bending part, and clamping limb includes support portion 2 and hangs down Directly in the clamping head 3 of support portion 2, one end of support portion 2 is sheathed on bending part, the other end and 3 phase of clamping head of support portion 2 Even, support portion 2 and clamping head 3 are L-shaped, and two clamping heads 3 are oppositely arranged and are formed with clamping gap 4, and clamping head 3 is plastic clip Head is held, main body 1 is super elastic marmen main body 1, and main body 1 also has super-elasticity under conditions of with certain mechanical strength, Not only it ensure that clamping effect but also improved the applicability of main body 1, matrix holder good clamping effect, and be used multiple times.

In order to improve the comfort level of patient, protection cushion is provided on clamping head 3, protection cushion is that cross section is V-arrangement knot One end of the V-arrangement protection cushion 5 of structure, the inner wall and clamping head 3 of V-arrangement protection cushion 5 fits, and the material of V-arrangement protection cushion 5 For flexible glue, protection cushion improves the elasticity of clamping head 3, avoids damage enamel and gum.

In order to facilitate the fixation of chock, the lower end of V-arrangement protection cushion 5 be provided with the V-shaped groove 6 that chock can be made to pass through so that Chock is inserted into adjacent two interdental gap, and the v-shaped structure of V-shaped groove 6 has ensured that chock comes into full contact with V-shaped groove 6, chock It positions more acurrate.

In order to improve clamping effect, 12 two sides of V-arrangement protection cushion tip are curved-surface structure, two sides of V-arrangement protection cushion 5 Face is the arc-shaped curved surface of indent, and it is even closer that curved design can be such that matrix band is bonded with tooth, and matrix holder stability is good, tooth Tooth good forming effect, and further improve the accuracy of chock positioning.

It is slipped to improve the mechanical strength of clamping head 3 and prevent clamping head 3 from spring occurs, the two of V-arrangement protection cushion 5 Side exterior surface is spaced embedded with anti-skid structure 7 and the first support construction 8, and outer surface and the V-arrangement of the first support construction 8 protect soft 5 outer surfaces are padded to be located on same curved surface, the first support construction 8 is ebonite support construction, ensure the mechanical strength of clamping head 3, Anti-skid structure 7 is flexible glue anti-skid structure, and anti-skid structure 7 protrudes from the outer surface of V-arrangement protection cushion 5, effectively increases clamping head 3 Antiskid effect.

Convenient in order to pick and place matrix holder, the outer surface of support portion 2 is evenly arranged with multiple for anti-skidding anti-skidding recessed Hole 9, anti-skidding shrinkage pool 9 effectively increase the frictional force of matrix holder, and matrix holder picks and places convenient.

In order to facilitate the fixation of dentistry pliers, the inside of support portion 2 is recessed to form limited position slot, two pincers of dentistry pliers Leg is connected in limiting slot, and the cross section of limiting slot is C-shaped configuration, and pliers good fixing effect is also set up in limiting slot limited Position slot cushion 10 is evenly arranged with the second support construction 11 on limiting slot cushion 10, and the second support construction 11 is ebonite support bar, Ebonite support bar increases the frictional force between dentistry pliers and limiting slot cushion 10, effectively prevents dentistry pliers clamping process The case where middle landing initiation malpractice, occurs.

In order to facilitate use, under matrix holder working condition, the angle of 1 place plane of main body and tooth top surface is 10 degree, The good visual field and operating space can be provided for doctor.

In order to improve grip strength, main body 1 is U-shaped main body, and the cross section of main body 1 is rectangle, and matrix holder can mention For good chucking power, and U-shaped structure main body elastic force is easy to adjust.

Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up Described, the content of the present specification should not be construed as a limitation of the present invention.

Claims (10)

1. a kind of matrix holder, it is characterised in that: including main body and clamping limb, the both ends of the main body, which have been bent to form, symmetrically to be set The bending part set, is arranged with the clamping limb on each bending part, and the clamping limb includes support portion and perpendicular to institute State the clamping head of support portion, one end of the support portion is sheathed on the bending part, the other end of the support portion with it is described Clamping head is connected, and the support portion and the clamping head are L-shaped, and two clamping heads are oppositely arranged and are formed with clamping gap, And the clamping head is plastic cement clamping head, the main body is super elastic marmen main body.

2. matrix holder according to claim 1, it is characterised in that: protection cushion is provided on the clamping head, it is described Protection cushion is the V-arrangement protection cushion that cross section is v-shaped structure, the inner wall of the V-arrangement protection cushion and the one of the clamping head End fits.

3. matrix holder according to claim 2, it is characterised in that: the lower end of the V-arrangement protection cushion is provided with can Make the V-shaped groove that chock passes through so that chock is inserted into adjacent two interdental gap.

4. matrix holder according to claim 2, it is characterised in that: two sides of the V-arrangement protection cushion are indent Arc-shaped curved surface and for fitting closely matrix band with tooth curved surfaces.

5. matrix holder according to claim 4, it is characterised in that: the two sides outer surface of the V-arrangement protection cushion is equal Embedded with anti-skid structure and the first support construction, first support construction is ebonite support construction, and the anti-skid structure is flexible glue Anti-skid structure, the anti-skid structure protrude from the outer surface of the V-arrangement protection cushion, the outer surface of first support construction with V-arrangement protection cushion outer surface is located on same curved surface.

6. matrix holder according to claim 5, it is characterised in that: the two sides outer surface of the V-arrangement protection cushion is equal It is arranged at intervals with the anti-skid structure and first support construction.

7. matrix holder according to claim 1, it is characterised in that: the outer surface of the support portion is evenly arranged with multiple For anti-skidding anti-skidding shrinkage pool.

8. matrix holder according to claim 1, it is characterised in that: the inside of the support portion is recessed to form limited position Slot is provided with limiting slot cushion in the limiting slot, and is evenly arranged with the second support construction on the limiting slot cushion.

9. matrix holder according to claim 1, it is characterised in that: under the matrix holder working condition, the main body The angle of place plane and tooth top surface is 8-12 degree.

10. matrix holder according to claim 1, it is characterised in that: the main body is U-shaped main body, and the main body Cross section is rectangle.