WO2014175673A1

WO2014175673A1 - Impression material mixing tip

Info

Publication number: WO2014175673A1
Application number: PCT/KR2014/003584
Authority: WO
Inventors: 정두락; 신경수
Original assignee: (주)디엑스엠
Priority date: 2013-04-25
Filing date: 2014-04-24
Publication date: 2014-10-30
Also published as: KR101355130B1

Abstract

An impression material mixing tip of the present invention comprises: a tip body coupled to an upper part of a cartridge; a tip cover covering an upper part of the tip body and discharging an impression material to the outside; and a mixer coupled to the upper part of the tip body and forming the impression material by mixing a silicone base and a curing agent, which are discharged from the cartridge, wherein the mixer comprises: a support shaft coupled to the upper part of the tip body in the vertical direction; a mixing rib formed to protrude in a radial direction along an axial direction of the support shaft; and an blocking wing which is formed in a lower area of the mixing rib so as to be inclined at a predetermined angle in a direction opposite to the discharge direction of the impression material, and which blocks the movement of a cured initial impression material initially introduced from the cartridge.

Description

Impression Material Mixing Tips

The present invention relates to an impression material mixing tip, and more particularly to an impression material mixing tip to improve the discharge structure of the impression material.

In the dentistry, dental impression materials are used, which are cured quickly by mixing a hardener with a liquid silicone base to obtain a tooth impression. Dental impression materials are commonly used in a impression material cartridge assembly. The impression material cartridge assembly is used by attaching a mixing tip for mixing and discharging the two to the impression material cartridge each containing a silicone base and a curing agent.

Patent 10-0954836 discloses a coupling structure of a conventional impression material cartridge and a mixing tip.

1 is an exploded perspective view showing the configuration of a conventional mixing tip 10, Figure 2 is an exemplary view showing the impression material discharge process of the conventional mixing tip (10). The impression material is mixed at a predetermined ratio in the mixing space C inside the mixing tip 10, moves along the mixer 17, and the silicon base A and the curing agent B are mixed and discharged.

At this time, the silicone base (A) and the curing agent (B) will be cured when not used for a certain time. Thus, the tip of the silicone base A and the hardener B, which are moved from the cartridge (not shown) to the mixing tip 10, is maintained in a cured state at the bottom of the mixing tip 10.

When the user applies pressure for the use of the impression material in the cured state, there is a problem that the mixing ratio is different because the amount of the silicon base (A) and the curing agent (B) supplied to the mixing space (C) is different. Accordingly, it was necessary to replace and use the mixing tip 10 with a new one, or discard the unmixed solid state initial impression material that was initially discharged and wait until the soft impression material was subsequently mixed and discharged at a predetermined ratio.

An object of the present invention is to solve the above problems, to provide an impression material mixing tip that can prevent the mixing ratio is changed by the initial impression material that remains solid.

Another object of the present invention is to provide an impression material mixing tip that can prevent the external leakage of the internal impression material by improving the coupling structure.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the present invention can be achieved by an impression material mixing tip coupled to the top of a cartridge having a silicone base cylinder and a hardener cylinder. Impression material mixing tip of the present invention, the tip body is coupled to the upper portion of the cartridge; A tip cover covering an upper portion of the tip body and discharging the impression material to the outside; A mixer coupled to the top of the tip body and mixing the silicon base and the curing agent discharged from the cartridge with each other to form an impression material, the mixer comprising: a support shaft coupled in a direction perpendicular to the top of the tip body; A mixing rib protruding radially along the axial direction of the support shaft; The lower portion of the mixing rib is formed to be inclined at a predetermined angle in a direction opposite to the discharge direction of the impression material to include a blocking blade to block the movement of the hardened initial impression material initially introduced from the cartridge.

According to one embodiment, the tip body and the tip cover are provided with a plurality of leakage preventing projections protruding in the vertical direction to engage with each other in the coupling region coupled to each other to prevent the outflow of the impression material.

Impression material mixing tip according to the present invention is provided with a blocking blade to block the external discharge of the cured initial impression material. Accordingly, the hardened impression material is not discharged to the outside, only the soft impression material is discharged to the outside to maintain the mixing ratio of the impression material.

Thus, the user can immediately supply the impression material discharged to the mixing tip to the patient.

In addition, the management time of the manager can also be reduced since the disposal of the hardened impression material is not necessary.

In addition, the external leakage of the impression material is blocked by the shape of the leakage preventing projections can be used stably.

1 is an exploded perspective view showing an exploded configuration of a conventional impression material tip.

Figure 2 is an exemplary view showing a discharge structure of the impression material through the conventional impression material tip.

Figure 3 is an exploded perspective view showing an exploded configuration of the impression material tip according to the present invention.

Figure 4 is an exemplary view showing a discharge structure of the impression material of the impression material tip according to the present invention.

100: mixing tip 110: cartridge

111: base cylinder 111a: base discharge pipe

113: curing agent cylinder 113a: curing agent discharge pipe

115: upper flange 120: tip body

123: cover coupling ring 123a: first leakage preventing projection

124: base inlet pipe 125: hardener inlet pipe

126: shaft insertion hole 127: blocking space

130: mixer 131: coupling shaft

133: support shaft 135: mixing rib

137: blocking wing 140: tip cover

141: cover body 141a: second leakage preventing protrusion

142: insertion ring 143: mixing tube

145: discharge pipe

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention are omitted.

3 is an exploded perspective view showing an exploded configuration of the mixing tip 100 according to the present invention. Mixing tip 100 is used detachably coupled to the top of the cartridge (110). Here, the mixing tip 100 according to the present invention is described as being used by mixing the curing agent (B) and the silicon base (A), in some cases other kinds of impression material may be used.

The cartridge 110 receives a silicone base A and a curing agent B, respectively. The impression material cartridge 110 is formed of a base cylinder 111 in which the silicon base A is accommodated, and a curing agent cylinder 113 in which the curing agent B is accommodated. A base discharge pipe 111a and a hardener discharge pipe 113a for discharging the silicon base A and the hardener B to the mixing tip 100 are formed on the base cylinder 111 and the hardener cylinder 113, respectively.

In addition, the base discharge pipe 111a and the curing agent discharge pipe 113a are fixed in position by the upper flange 115. A base inlet pipe 124 and a hardener inlet pipe 125 of the mixing tip 100 are positioned in the base discharge pipe 111a and the hardener discharge pipe 113a exposed to the upper flange 115, respectively.

The mixing tip 100 is coupled to the cartridge 110 to guide the silicon base A and the curing agent B, which are independently supplied from the cartridge 110, to be mixed with each other at a predetermined ratio and to be supplied to a target position for policing. do. Mixing tip 100 according to the present invention blocks the initial impression material (M) of the cured state at the beginning of use to be accommodated therein without being discharged to the outside of the mixing tip, the subsequent soft silicone base (A) and the curing agent ( B) is mixed in a fixed ratio and discharged to the outside.

The mixing tip 100 is disposed between the tip body 120 coupled to the cartridge 110, the tip cover 140 covering the tip body 120, and the tip body 120 and the tip cover 140. The mixer 130 which mixes a silicone base (A) and a hardening | curing agent (B) with each other is included.

Tip body 120 is coupled to the upper flange 115 of the cartridge (110). The tip body 120 is formed to be spaced apart at regular intervals on the outer periphery of the coupling plate 121 and the coupling plate 121 to form a cover insertion groove 122 between the tip body 120 and the cover coupling ring 123 ), A base inlet tube 124 for introducing a silicon base from the cartridge 110, and a hardener inlet tube 125 for introducing a curing agent from the cartridge 110.

A shaft insertion hole 126 into which the coupling shaft 131 of the mixer 130 is inserted is recessed in the center region of the tip body 120. In addition, a blocking space 127 recessed in a predetermined diameter is formed in the peripheral region of the shaft insertion hole 126. In the blocking space 127 formed between the coupling plate 121 and the blocking blade 137, the initial impression material M of the cured state initially introduced from the cartridge 110 is accommodated.

The base inlet pipe 124 and the hardener inlet pipe 125 extend a predetermined length in the downward direction to the blocking space 127. The base inlet pipe 124 and the hardener inlet pipe 125 are respectively connected to the base discharge pipe 111a and the hardener discharge pipe 113a of the cartridge 110.

The cover coupling ring 123 is formed to be spaced apart from the outer periphery of the tip body 120 by a predetermined distance to support the tip cover 140 is coupled.

At this time, the upper surface of the cover coupling ring 123 is provided with a first leakage preventing projection (123a) protruding and recessed in a vertical direction at a predetermined interval as shown. The first leakage preventing protrusion 123a is formed to mesh with the second leakage preventing protrusion 141a of the tip cover 140 to block external leakage of the impression material. In addition, the first leakage preventing protrusion 123a is engaged with the second leakage preventing protrusion 141a in a vertical direction, thereby limiting the vertical coupling position of the tip cover 140.

Here, the coupling structure of the tip body 120 and the cartridge 110 is not shown in the figure, but is coupled by a fastening member (not shown) such as a hook, or the base inlet pipe to the base discharge pipe 111a and the hardener discharge pipe 113a. 124 and the hardener inlet pipe 125 may be fitted to each other to maintain a coupled state.

The mixer 130 is coupled to the upper portion of the tip body 120 to mix the silicone base (A) and the curing agent (B) introduced through the base inlet pipe 124 and the hardener inlet pipe 125 with each other. In addition, the mixer 130 blocks the initial introduction of the cured state of the silicone base and the curing agent to the outside.

The mixer 130 has a coupling shaft 131 fixed on the tip body 120, a support shaft 133 disposed coaxially perpendicularly to the coupling shaft 131, and in a radial direction of the support shaft 133. A plurality of mixing ribs 135 protruding from a predetermined length, a blocking area 137 formed to be inclined at a predetermined area in the lower region of the mixing rib 135 to block external discharge of the initial impression material M, and the mixer 130. It includes a fixing protrusion (139) for fixing the inside of the tip cover (140).

The coupling shaft 131 is coupled to the shaft insertion hole 126 of the tip body 120 so that the mixer 130 is fixed in the tip body 120. Coupling shaft 131 is fit tightly coupled to the shaft insertion hole 126, the position is firmly constrained. Therefore, the position of the mixer 130 is stably fixed even to the discharge pressure of the silicon base (A) and the curing agent (B).

The support shaft 133 extends a predetermined length coaxially with the coupling shaft 131. The support shaft 133 supports the plurality of mixing ribs 135. The mixing ribs 135 are arranged in plural at regular angular intervals radially outward with respect to the support shaft 133. The mixing ribs 135 according to the preferred embodiment of the present invention are disposed at intervals of 90 degrees in the horizontal direction and at regular intervals along the axial direction. However, in some cases, the mixing ribs 135 may be disposed at different angular intervals along the axial direction, or may be disposed in an alternating direction.

In addition, the mixing rib 135 may be formed in the shape of a screw formed in a spiral direction with respect to the support shaft 133.

Blocking blade 137 is disposed between the coupling shaft 131 and the mixing rib 135 to block the discharge of the initial impression material (M). As shown in FIG. 4, the blocking blade 137 is formed with an area that can sufficiently cover the support shaft 133 and the inner wall surface of the tip cover 140.

As a result, the hardened initial impression material M may not be moved at a narrow distance between the blocking blade 137 and the tip cover 140, and only the soft subsequent impression material F may be moved by the discharge pressure.

In addition, the blocking blade 137 is formed to be inclined in the direction opposite to the discharge direction of the impression material. It is formed in a conical shape as a whole. As a result, the cured initial impression material M supplied from the bottom is brought into contact with the blocking blade 137 and moved in the direction of the coupling shaft 131 by the inclined shape. Thus, the initial impression material M is accumulated between the blocking space 127, when the blocking space 127 is filled by the initial impression material (M), the subsequent soft impression material (F) is pushed out of the initial impression material (M) Is moved.

The soft impression material F moves between the mixing ribs 135 and is mixed at a predetermined mixing ratio to be discharged to the outside.

The fixing protrusion 139 is formed between the mixing rib 135 and the blocking blade 137. The fixing protrusion 139 is formed to be longer than the mixing rib 135 to be in close contact with the stepped region of the tip cover 140. Accordingly, the position of the mixer 130 may be fixed inside the tip cover 140 to prevent the position of the mixer 130 from being moved by the discharge pressure of the impression material F. Referring to FIG.

Tip cover 140 is coupled to the top of the tip body 120. Tip cover 140 is formed in a tubular shape having a predetermined length so that the silicon base (A) and the curing agent (B) is sufficiently mixed through the mixer 130. Tip cover 140 is a cover body 141 is coupled to the tip body 120, the mixing body 143 is formed to extend a predetermined length on the top of the cover body 141 and accommodate the mixer 130 therein, The discharge pipe 145 is formed at the end of the mixing pipe 143 to discharge the impression material to the outside.

The cover body 141 is disposed on the coupling plate 121 of the tip body 120. In the outer circumference of the cover body 141, the insertion ring 142 is vertically extended to a predetermined length and is inserted into the cover insertion groove 122 of the tip body 120.

On the other hand, the outer periphery of the cover body 141 is formed to protrude and recess at a predetermined interval in the second leakage preventing projection (141a) in the vertical direction to the lower region. The second leakage preventing protrusion 141a is alternately formed with the first leakage preventing protrusion 123a of the cover coupling ring 123 to be engaged with each other in the vertical direction. Accordingly, the external leakage of the impression material can be stably blocked.

An operation process of the impression material mixing tip 100 according to the present invention having such a configuration will be described with reference to FIGS. 3 and 4.

First, the user couples the mixing tip 100 to the top of the cartridge 110. The base inlet pipe 124 and the hardener inlet pipe 125 are respectively inserted into the base discharge pipe 111a and the hardener discharge pipe 113a of the cartridge 110 to fix the mixing tip 100 to the cartridge 110.

Then, the cartridge 110 is pressed to discharge the silicon base A and the curing agent B from the base cylinder 111 and the curing agent cylinder 113. At this time, the pressurization of the cartridge 110 may be performed by a user's manual operation, or may use separate equipment such as a dispenser (not shown).

When the silicone base (A) and the curing agent (B) is introduced into the mixing tip 100 by the pressure, the curing agent (B) and the base cylinder 111 located at the tip of the curing agent cylinder 113 and the base cylinder 111 is long-term It flows into the hardened state without the use of. The initial impression material (M) is cured and introduced into the mixing tip 100 is in contact with the blocking blade 137.

The initial impression material M in contact with the blocking blade 137 does not flow at a narrow interval between the blocking blade 137 and the inner wall surface of the tip cover 140 and is laminated on the blocking space 127. Subsequent impression material (F) to be supplied after being maintained in a soft state is moved by the gap between the blocking blade 137 and the inner wall surface of the tip cover 140, and then moved through the mixing rib 135 and mixed with each other to the outside Will be discharged.

Therefore, since the impression material F discharged to the discharge pipe 145 of the mixing tip 100 is in a soft state, the user can immediately supply the impression material to the patient.

On the other hand, since the first leakage preventing projections 123a and the second leakage preventing projections 141a are firmly engaged with each other, they can be stably used without leakage of the impression material.

Embodiment of the impression material mixing tip of the present invention described above is merely illustrative, and those skilled in the art to which the present invention pertains that various modifications and equivalent other embodiments are possible from this. Could be. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

Claims

In the impression material mixing tip coupled to the top of the cartridge having a silicone base cylinder and a hardener cylinder,

A tip body coupled to the top of the cartridge;

A tip cover covering an upper portion of the tip body and discharging the impression material to the outside;

It is coupled to the top of the tip body and comprises a mixer for mixing the silicon base and the curing agent discharged from the cartridge to form an impression material,

The mixer,

A support shaft coupled in a direction perpendicular to an upper portion of the tip body;

A mixing rib protruding radially along the axial direction of the support shaft;

Impression material mixing tips are formed in the lower region of the mixing ribs inclined at a predetermined angle in a direction opposite to the discharge direction of the impression material to block the movement of the cured initial impression material initially introduced from the cartridge .
The method of claim 1,

The tip body and the tip cover is a mixing tip characterized in that it is provided with a plurality of leakage preventing projections protruding in the vertical direction to be engaged with each other in the coupling region coupled to each other to prevent the outflow of the impression material.