ental Mixing Tip Capable of Uniformly Mixing Impression Materials

Abstract

The present invention relates to a dental mixing tip for discharging an impression material in which a first material and a second material are mixed together, comprising: a connector (110) having a first supply hole (113a) and a second supply hole (115a) respectively formed on a plate surface to supply the first material and the second material; a mixing tube (120) having a mixer receiving tube (123) having a circular cross-section in which a discharge hole (125) is formed at the tip, and a connector coupling tube (121) provided at the rear end of the mixer receiving tube (123) to accommodate the connector (110); The device includes a mixer (130) provided along the longitudinal direction of the mixer receiving tube (123) from the front of the connector (110) to mix the first material and the second material discharged from the first supply hole (113a) and the second supply hole (115a) with each other and discharge them through the discharge hole (125), and the mixer (130) comprises a plurality of vertical wings (131) arranged vertically along the longitudinal direction of the mixer receiving tube (123); It is characterized by including a plurality of horizontal wings (133) horizontally arranged in the central area of ​​adjacent vertical wings (131); D-cut blocks (136) provided along the longitudinal direction on both sides of the horizontal wings (133) to partially cut the cross-sectional shape of the movement path (134, 134a) through which the impression material mixed with the first material and the second material moves; and a blocking roof (138) extending from the upper part of the vertical wings (131) toward the upper part of the D-cut blocks (136) to form a symmetrical cross-sectional shape of the impression material movement path (134, 134a).

Description

Technology Field

[0001] The present invention relates to a dental mixing tip, and more specifically, to a dental mixing tip capable of uniformly mixing and discharging two-component materials used in dentistry. Background Technology

[0002] In dentistry, dental two-part materials are used to obtain tooth impressions by mixing a hardener with a liquid silicone base to enable rapid curing. Dental two-part materials are typically contained in a material cartridge assembly. The material cartridge assembly is used by attaching a mixing tip to material cartridges, which contain the silicone base and the hardener respectively, to mix and discharge the two components.

[0003] An example of a conventional mixing tip is disclosed in Public Patent No. 10-2014-0136777, "Mixing tip assembly for a mixing device."

[0004] FIG. 1 is a schematic diagram illustrating the configuration of a conventional mixing tip (10). As illustrated, the conventional mixing tip (10) includes a mixing blade (15) that mixes two types of materials (A, B) while fixed inside a mixing tube (13). Two types of impression materials (A, B) supplied through a material supply port (11a) formed in a connector (11) are gradually mixed as they move along the mixing blade (15).

[0005] That is, when passing through the first connector (11) and reaching the first mixing blade (15a), the two materials (a, b) are mixed into two layers and moved, when reaching the second mixing blade (15b), they are mixed into four layers and moved, and at the third mixing blade (15c), they are mixed into eight layers and moved. That is, each time they are moved to a subsequent mixing blade, the two materials are divided by a factor of two, and the mixing layer increases accordingly. When discharged after passing through the mixing blade of the entire length, the two materials can be uniformly mixed by the increased mixing layer.

[0006] Meanwhile, FIG. 2 is an exemplary diagram illustrating the configuration of a conventional mixer (20), and FIG. 3 is an exemplary cross-sectional diagram illustrating the flow area (M) of the impression material (A+B). The mixer (20) includes a connector (21) and a horizontal wing (22) and a vertical wing (23) coupled to the connector (21). Since the mixing tube (30) has a circular cross-section, the horizontal wing (22) and the vertical wing (23) of the mixer (20) that are accommodated within the mixing tube are also provided to be accommodated inside the circular interior. Additionally, D-cut blocks (25) are formed on both sides of the horizontal wing (22).

[0007] In this conventional mixer (20), when impression materials (A, B) are moved inside a circular mixing tube (30), the cross-sectional shape (M) of the movement path of the impression materials (A, B) has an irregular shape as indicated by hatching in FIG. 3. That is, the area enclosed by the vertical wing (23), the horizontal wing (22), and the D-cut block (25) has a straight shape, but the area in contact with the mixing tube (30) has an arc shape, so the cross-sectional shape (M) of the movement path has an asymmetrical shape that is far from a square.

[0008] The structural limitation of the conventional mixing blade having an asymmetrical shape caused a problem in that the first material (A) and the second material (B) could not be divided into an ideal 5:5 ratio when transferred to the next mixing blade. That is, as shown in the enlarged illustration, when the cross-sectional shape (M) of the moving channel was divided based on the central axis, there was a limitation in that the ratio of both sides (M1:M2) could not be 5:5.

[0009] In particular, the wing structure is inserted inside the circular cross-section, and the cross-sectional shape of the mixing flow channel (134, 134a) is formed as an asymmetric shape including a curved surface rather than a square, so that the impression material passing through each mixing wing is not divided into the next mixing wing in an exact 5:5 ratio, but an asymmetric division with a deviation of 4:6 or more occurs.

[0010] These division deviations accumulate in the next mixing blade and ultimately cause the impression material to be discharged in a non-uniform mixed state.

[0011] In addition, as shown in FIG. 3, in a conventional mixer (20), some impression material flowing along the outer circumference or edge area of ​​a mixing tube where mixing blades (22, 23) are not formed reaches the discharge port without coming into contact with the mixing blades. As a result, the material is discharged to the outside without being mixed at all, which can cause problems such as uneven physical properties of the impression material or poor curing. The problem to be solved

[0013] The objective of the present invention is to solve the aforementioned problem by providing a mixing tip that can improve the uniformity of the impression material by forming the flow area of ​​the impression material in a symmetrical shape as much as possible so that the first material and the second material are divided in an equal ratio of 5:5 when moving to the next mixing blade.

[0014] Another objective of the present invention is to provide a mixing tip that can prevent impression material from flowing along the outer side of the mixing blades and being discharged to the outside without being mixed by forming a closed roof structure on the upper part of each mixing blade of the mixer.

[0015] The above-mentioned objectives and various advantages of the present invention will become more apparent to those skilled in the art from the preferred embodiments of the present invention. means of solving the problem

[0017] The above-described objective of the present invention can be achieved by a dental mixing tip that discharges an impression material in which a first material and a second material are mixed together. The dental mixing tip of the present invention comprises: a connector (110) having a first supply hole (113a) and a second supply hole (115a) respectively formed to supply a first material and a second material to a plate surface; a mixing tube (120) having a mixer receiving tube (123) with a circular cross-section having a discharge hole (125) formed at its tip, and a connector coupling tube (121) provided at the rear end of the mixer receiving tube (123) to receive the connector (110); The device includes a mixer (130) provided along the longitudinal direction of the mixer receiving tube (123) from the front of the connector (110) to mix the first material and the second material discharged from the first supply hole (113a) and the second supply hole (115a) with each other and discharge them through the discharge hole (125), and the mixer (130) comprises a plurality of vertical wings (131) arranged vertically along the longitudinal direction of the mixer receiving tube (123); It is characterized by including a plurality of horizontal wings (133) horizontally arranged in the central area of ​​adjacent vertical wings (131); D-cut blocks (136) provided along the longitudinal direction on both sides of the horizontal wings (133) to partially cut the cross-sectional shape of the movement path (134, 134a) through which the impression material mixed with the first material and the second material moves; and a blocking roof (138) extending from the upper part of the vertical wings (131) toward the upper part of the D-cut blocks (136) to form a symmetrical cross-sectional shape of the impression material movement path (134, 134a).

[0018] According to one embodiment, the blocking roof (138) is provided to connect the upper end of the D-cut block (136) from the upper end of the vertical wing (131), the upper end of the blocking roof (138) is formed in a curved shape having a curvature corresponding to the inner diameter of the mixer receiving tube (123), the lower end of the blocking roof (138) is formed horizontally, and the blocking roof (138) and the D-cut block (136) can be connected by an inclined surface (138a).

[0019] According to one embodiment, the blocking roof (138) has a cut area (138b) formed spaced apart from the upper part of the vertical wing (131) to the D-cut block (136), and the cut area (138b) is preferably cut so that the cross-sectional shape of the movement path (134, 134a) of the impression material, which is wrapped by the D-cut block (136), the vertical wing (131), the lower part of the blocking roof (138), and the horizontal wing (133), forms a rectangle. Effects of the invention

[0021] According to the mixing tip of the present invention, the cross-sectional shape of the moving channel through which the impression material moves is formed to be close to a rectangle, so that when the first material and the second material move to the next mixing blade, they are uniformly divided and delivered in a 5:5 ratio, and consistency of the mixing ratio can be ensured during the entire mixing process.

[0022] In particular, the barrier roof formed on the upper part of the mixing blade prevents the problem of unmixed lifting material flowing in the outer area being discharged without coming into contact with the mixing blade, and induces all materials to collide with the mixing blade to achieve actual mixing.

[0023] The mixing tip of the present invention has the technical effect of improving the mixing quality of two-component dental materials, preventing the occurrence of unmixed materials, and simultaneously satisfying mixing efficiency and structural reliability. Brief explanation of the drawing

[0025] FIG. 1 is an exemplary diagram illustrating the mixing structure of a first material and a second material of a conventional mixing tip. FIGS. 2 and FIGS. 3 are exemplary diagrams illustrating the structure of a conventional mixer and the cross-sectional shape of a moving fluid path. FIG. 4 is a perspective view illustrating the configuration of a mixing tip according to the present invention. FIG. 5 is an exploded perspective view illustrating the configuration of a mixing tip according to the present invention. FIG. 6 is a perspective view illustrating the configuration of a mixer of a mixing tip according to the present invention. FIG. 7 is an enlarged view illustrating the structure of a mixer of a mixing tip according to the present invention. FIG. 8 is a cross-sectional example diagram illustrating the cross-sectional shape of the moving channel of a mixing tip according to the present invention. FIGS. 9 and FIGS. 10 are cross-sectional examples illustrating the structure of a mixer and the cross-sectional shape of a moving channel according to another embodiment of the present invention. Specific details for implementing the invention

[0026] To fully understand the present invention, preferred embodiments of the invention are described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more completely explain the present invention to those with average knowledge in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize clearer explanations. It should be noted that in each drawing, identical components may be depicted with the same reference numeral. Detailed descriptions of known functions and configurations that are deemed to unnecessarily obscure the essence of the present invention are omitted.

[0028] FIG. 4 is a perspective view showing the configuration of the mixing tip (100) according to the present invention in a combined state, FIG. 5 is an exploded perspective view showing the configuration of the mixing tip (100) in disassembly, FIG. 6 is a perspective view showing the configuration of the mixer (130), FIG. 7 is a cross-sectional example showing the internal configuration of the mixer (130), and FIG. 8 is a cross-sectional example showing the cross-sectional shape of the impression material movement path (134, 134) of the mixer (130).

[0029] As illustrated in FIGS. 4 and 5, the mixing tip (100) according to the present invention is used by being coupled to a dispenser (not shown) that receives a first material (A) and a second material (B). The dispenser (not shown) is coupled with a first material cartridge (not shown) that receives the first material (A) and a second material cartridge (not shown) that receives the second material (B) inside. The dispenser (not shown) supplies the first material (A) and the second material (B) to the mixing tip (100) by manually pressing a piston (not shown) mounted on each material cartridge (not shown) by the user.

[0030] The mixing tip (100) includes a connector (110) coupled to a dispenser (not shown), a mixing tube (120) coupled to the connector (110) to form a space where a first material (A) and a second material (B) are mixed, and a mixer (130) accommodated inside the mixing tube (120) to allow the first material (A) and the second material (B) to be mixed uniformly.

[0031] The mixing tip (100) of the present invention forms the cross-sectional shape (M) of the moving channel through which impression material (A+B) is mixed and flows between the mixing tube (120) and the mixer (130) to be close to a square shape that is symmetrical to the left and right, so that when the impression material is divided and moved to the next mixing blade, it is divided and moved uniformly in a 5:5 ratio. By doing so, the impression material (A+B) discharged through the mixing tube (120) can be mixed more uniformly.

[0032] Here, the first material (A) may be a silicone base and the second material (B) may be a curing agent. In some cases, the first material (A) and the second material (B) may be different materials.

[0034] The connector (110) receives a first material (A) and a second material (B) from a dispenser (not shown) and supplies them into a mixing tube (120). The connector (110) has a connector body (111) formed in the shape of a disc, and a first supply tube (113) and a second supply tube (115) coupled to the rear end of the connector body (111) to receive the first material (A) and the second material (B) respectively from a dispenser (not shown).

[0035] The connector body (111) is formed in the shape of a disc, with the front facing the mixing tube (120) and the back facing the dispenser (not shown). The outer diameter of the connector body (111) is formed to correspond to the inner diameter of the connector coupling tube (121) of the mixing tube (120). As a result, as shown in FIG. 4, the connector body (111) is accommodated inside the connector coupling tube (121) and its position is fixed.

[0036] On the front of the connector body (111), a first supply hole (113a) communicating with the first supply pipe (113) and a second supply hole (115a) communicating with the second supply pipe (115) are formed.

[0038] The mixing pipe (120) provides a mixing space so that the first material (A) and the second material (B) discharged through the connector (110) can be completely mixed by passing through the mixer (130). The mixing pipe (120) includes a connector coupling pipe (121) to which the connector (110) is coupled, and a mixer receiving pipe (123) extending from the connector coupling pipe (121) and containing the mixer (130) inside.

[0039] At the tip of the mixing tube (120), a discharge hole (125) is formed to discharge the uniformly mixed impression material (A+B) to the teeth via the mixer (130).

[0041] The mixer (130) is housed within the mixer receiving tube (123) and allows the first material (A) and the second material (B) discharged through the first supply hole (113a) and the second supply hole (115a) of the connector (110) to be uniformly mixed. As shown in FIGS. 6 and 7, the mixer (130) includes a plurality of vertical wings (131) arranged at regular intervals along the longitudinal direction of the mixer receiving tube (123), a plurality of horizontal wings (133) arranged horizontally between adjacent vertical wings (131), D-cut blocks (136) provided on both sides of the horizontal wings (133), and a plurality of blocking roofs (138) connecting the vertical wings (131) and the D-cut blocks (136) to form a symmetrical cross-sectional shape of the impression material movement path.

[0042] Here, it is preferable that the cross-sectional shape of the flow path (134, 134a) formed by the D-cut block (136) and the blocking roof (138) be rectangular.

[0044] The vertical wing (131) is formed by combining a central vertical wing (131a) formed vertically in the central region of the mixer receiving tube (123) in a "L" shape, coaxial with the supply direction of the impression material (A+B), and a blocking vertical wing (131b) formed orthogonally to the central vertical wing (131a) to block the movement of the impression material.

[0045] The central vertical wing (131a) is positioned vertically in the central area of ​​the mixer receiving tube (123) so that the impression material (A+B), which is a mixture of the first material (A) and the second material (B), strikes the central vertical wing (131a), splits in half, and moves. The blocking vertical wing (131b) is formed in a fan shape toward the D-cut block (136) in a direction perpendicular to the central vertical wing (131a) to block the impression material (A+B) from moving forward. Here, the blocking vertical wing (131b) is alternately positioned on the left and right sides along the central vertical wing (131a), and the blocking roof (138) is alternately positioned in a direction opposite to the blocking vertical wing (131b).

[0047] A mixing blade is formed by including one vertical blade (131) and one horizontal blade (133). The impression material (A+B) mixed in the previous step collides with the vertical blade (131) and is divided in a 5:5 ratio. At this time, as shown in FIG. 7, a pair of blocking vertical blades (131b) are blocked in the diagonal area centered on the horizontal blade (133) and the central vertical blade (131a), so the movement of the impression material (A+B) is blocked, and the impression material (A+B) is moved to the next horizontal blade (133) through the upper movement path (134, 134a) and lower movement path (134a) formed in the remaining diagonal area.

[0048] Impression material A+B, which is moved through the upper moving channel (134, 134a) and the lower moving channel (134a), is combined with the next horizontal wing (133), collides with the next central vertical wing (131a), is divided again in a 5:5 ratio, then moves to the upper moving channel (134, 134a) and the lower moving channel (134a), and is mixed in the next horizontal wing (133). By repeating this process, the impression material (A+B) is uniformly mixed and discharged through the discharge port (125).

[0050] The D-cut block (136) is provided along the longitudinal direction of the mixer receiving tube (123) on both sides of the horizontal wing (133) to adjust the cross-sectional shape (M) of the flow path (134, 134a) through which the impression material (A+B) flows to be close to a symmetrical square shape. The outer periphery of the D-cut block (136) is formed as a curved surface having a curvature corresponding to the inner diameter of the mixer receiving tube (123), and the inner side is formed in the shape of a vertical surface.

[0051] The blocking roof (138) is formed to connect the upper region of the central vertical wing (131a) and the D-cut block (136), so that the cross-sectional shape (M) of the flow path (134, 134a) through which the lifting material (A+B) flows is formed to be close to a square. As shown in FIG. 7, the blocking roof (138) is provided in a direction opposite to the blocking vertical wing (131b) based on one central vertical wing (131a).

[0052] The upper surface of the blocking roof (138) is formed as a curved surface having a curvature corresponding to the inner circumference of the mixer housing tube (123) and is connected to the upper end of the D-cut block (136). The lower end of the blocking roof (138) is formed as a horizontal surface that horizontally connects the central vertical wing (131a) and the D-cut block (136). At this time, the boundary area between the lower end of the blocking roof (138) and the D-cut block (136) is connected by an inclined surface (138a).

[0053] Due to the shape of the D-cut block (136) and the blocking roof (138), as shown in FIG. 8, the cross-sectional shape (M) of the impression material movement channel (134, 134a), which is surrounded by the central vertical wing (131a), the blocking roof (138), the D-cut block (136), and the horizontal wing (133), becomes nearly square. Accordingly, when the cross-sectional shape (M), which is nearly square, is divided into two areas along the central axis, the first area (M1) and the second area (M2) can be divided symmetrically in a ratio of nearly 5:5. Accordingly, the problem of uneven mixing of the impression material caused by the division deviation accumulated while moving to the next-rank mixing wing can be resolved.

[0055] Meanwhile, the blocking roof (138) and the D-cut block (136) can solve the conventional problem where the lifting material (A+B) blocks the empty space between the mixer receiving pipe (123) and the vertical wing (131), so that the lifting material (A+B) is discharged directly into the discharge port (125) without passing through the flow path (134, 134a) between the horizontal wing (133) and the vertical wing (131).

[0057] Meanwhile, FIGS. 9 and 10 are a perspective view illustrating the configuration of a mixer (130a) according to another embodiment of the present invention and a cross-sectional example view illustrating the cross-sectional shape of an impression material flow path.

[0058] The mixer (130) according to the preferred embodiment described above is provided such that the blocking roof (138) is connected to the D-cut block (136). In this case, as shown in FIG. 8, the cross-sectional shape of the impression material movement channel (134, 134a) is formed such that one corner is cut at an angle from a square shape by the inclined surface (138a). As a result, there is a limitation in that the impression material moving to the next mixing blade cannot be divided and moved in an exact 5:5 ratio.

[0059] In addition, according to another embodiment, the mixer (130a) is designed to form an incision area (138b) that cuts out an area corresponding to the inclined surface (138), thereby creating a gap between the blocking roof (138) and the D-cut block (136).

[0060] When adjusting the size and ratio of the D-cut block (136), the blocking roof (138), and the cut area (138b), the cross-sectional shape (M) of the movement path (134, 134a) of the impression material in the mixer (130a) according to another embodiment as shown in FIG. 10 has the advantage of having a shape closer to a rectangle than the cross-sectional shape (M) of the movement path (134, 134a) of the mixer (130) according to the preferred embodiment as shown in FIG. 8.

[0062] Meanwhile, as illustrated in FIG. 7, the blocking roof (138) of the present invention is formed by being bent vertically in a direction opposite to the blocking vertical wing (131b) in front of the central vertical wing (131a). However, depending on the case, the blocking roof (138) may be formed at a position recessed to a certain depth inward of the central vertical wing (131a).

[0063] Additionally, the blocking roof (138) may be formed in a multi-stage shape with the lower end stepped inward.

[0064] Additionally, the blocking roof (138) of the present invention is formed to have a width narrower than the length of the central vertical wing (131a), but in some cases, it may be formed to have the same width as the central vertical wing (131a).

[0065] The shape of the blocking roof (138) serves to induce the impression material (A+B) to flow with a certain pressure or resistance during movement. Accordingly, the blocking roof (138) can be varied in various ways within the range of forming the cross-sectional shape of the movement path (134, 134a) into a symmetrical rectangular shape.

[0066] Additionally, depending on the case, the cross-sectional shape of the impression material flow path may be formed as an asymmetrical shape within a range where the left and right cross-sectional areas can be matched equally. At this time, the blocking roof (138) may be formed in various shapes, such as a curved surface, an inclined surface, or a mixture of an inclined surface and a curved surface, within a range where the left and right cross-sectional areas of the cross-sectional shape can be matched.

[0068] According to the mixing tip of the present invention, the cross-sectional shape of the moving channel through which the impression material moves is formed to be close to a rectangle, so that when the first material and the second material move to the next mixing blade, they are uniformly divided and delivered in a 5:5 ratio, and consistency of the mixing ratio can be ensured during the entire mixing process.

[0069] In particular, the barrier roof formed on the upper part of the mixing blade prevents the problem of unmixed lifting material flowing in the outer area being discharged without coming into contact with the mixing blade, and induces all materials to collide with the mixing blade to achieve actual mixing.

[0070] The mixing tip of the present invention has the technical effect of improving the mixing quality of two-component dental materials, preventing the occurrence of unmixed materials, and simultaneously satisfying mixing efficiency and structural reliability.

[0072] The embodiments of the mixing tip of the present invention described above are merely illustrative, and those skilled in the art will readily understand that various modifications and equivalent alternative embodiments are possible therefrom. Therefore, it will be well understood that the present invention is not limited only to the forms mentioned in the detailed description above. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Furthermore, the present invention should be understood to include all modifications, equivalents, and substitutions within the spirit and scope of the present invention as defined by the appended claims. Explanation of the symbols

[0074] 10 : Mixing Tip 11 : Connector 13 : Mixing tube 15 : Mixer 15a : First mixing blade 15b : Second mixing blade 15c : Third mixing wing 100 : Mixing tip 110 : Connector 111 : Connector body 113: First supply pipe 113a: First supply port 115: Second supply pipe 115a: Second supply port 120: Mixing tube 121: Connector coupling tube 123 : Mixer receiving tube 125 : Discharge port 130 : Mixer 131 : Vertical blade 131a: Center vertical wing 131b: Blocking vertical wing 133 : Horizontal wing 134 : Moving channel 136 : D-cut block 138 : Barrier roof 138a: Slope 138b: Incision area A: First material B: Second material A+B: Impression materials M: Cross-sectional shape of the moving channel

Claims

Claim 1 delete Claim 2 delete Claim 3 A dental mixing tip for discharging an impression material in which a first material and a second material are mixed together comprises: a connector (110) having a first supply hole (113a) and a second supply hole (115a) respectively formed on a plate surface to supply the first material and the second material; a mixing tube (120) having a circular cross-section with a discharge hole (125) formed at a tip end and a connector coupling tube (121) provided at the rear end of the mixer receiving tube (123) to receive the connector (110); and a mixer (130) provided along the longitudinal direction of the mixer receiving tube (123) from the front of the connector (110) to mix the first material and the second material discharged from the first supply hole (113a) and the second supply hole (115a) together and discharge them through the discharge hole (125), wherein the mixer (130) comprises A plurality of vertical wings (131) arranged vertically along the longitudinal direction of a mixer receiving tube (123); a plurality of horizontal wings (133) arranged horizontally in the central area of ​​adjacent vertical wings (131); D-cut blocks (136) provided along the longitudinal direction on both sides of the horizontal wings (133) to partially cut the cross-sectional shape of a movement channel (134, 134a) through which an impression material mixed with a first material and a second material moves; and a blocking roof (138) extending from the upper part of the vertical wings (131) toward the upper part of the D-cut blocks (136) to form a symmetrical cross-sectional shape of the impression material movement channel (134, 134a), wherein the blocking roof (138) has a cut area (138b) formed spaced apart from the upper part of the vertical wings (131) to the D-cut blocks (136), and the cut area (138b) A dental mixing tip characterized by the fact that the cross-sectional shape of the impression material’s movement path (134, 134a), which is wrapped by the D-cut block (136), the vertical wing (131), the bottom of the blocking roof (138), and the horizontal wing (133), is cut to form a square.

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