KR200421380Y1 - Medical handpiece connector - Google Patents

Abstract

The present invention is provided with a non-return valve made of a soft material in the fluid passage when the injection port is opened by the fluid pressure when the injection is carried out when the injection is carried out, and the discharge port is tightened by the elastic characteristics of the soft material when the pressure is extinguished It is related to the medical handpiece connector to prevent backflow through the handpiece to prevent backflow through the handpiece prevents the breakdown of the device due to the inflow of foreign substances into the connector and blockage of the conduit and to ensure safety against bacterial contamination.

The present invention for realizing this in the handpiece connector having a fluid passage formed in the inlet to be mounted to the fluid supply tube in the lower portion and the handpiece detachable nipple is formed in the upper, the inner diameter of the fluid passage is formed to expand A chamber is formed, the chamber is formed, the body is made of a soft material, there is formed a conical space narrowing in the direction of the discharge flow of the fluid therein is always blocked at the vertex position of the conical space and when the fluid pressure in the discharge progress direction only It characterized in that it comprises a non-return valve for forming a discharge port that is drilled by the elasticity of the soft material.

Description

Medical Handpiece Connector {A MEDICAL HAND PIECES CONNECTOR}

1 is a typical medical handpiece connector

2 is a cross-sectional view of FIG.

Figure 3 is an exploded cross-sectional view of an embodiment according to the present invention

4A is a cross-sectional view of FIG. 1 (when discharging fluid)

4B is a cross-sectional coupling diagram 2 of FIG. 1 (when reverse flow occurs)

* Explanation of symbols for the main parts of the drawings

1: Medical handpiece connector of the present invention

2: supply tube 3: handpiece 10: fluid line

10a: inflow side member 10b: discharge side member 11: inlet

13: nipple 15: chamber 17: expansion stage

19: inlet 30: non-return valve 31: body

33: conical space 35: discharge port 37: inlet

The present invention relates to a connector of a handpiece for use in dentistry, and the like, in particular, by installing a non-return valve made of a soft material in the fluid pipeline during injection, the discharge port is opened by the fluid pressure, the fluid supply movement is made and the pressure disappears When the discharge port is tightened by the elastic property of the soft material, the back flow of the fluid is blocked and the back flow through the handpiece is prevented, thus preventing the failure of the device due to the inflow of foreign substances into the connector and the blockage of the pipes, and the safety against bacterial contamination. A medical handpiece connector to be secured.

Handpieces used in medical procedures such as dentistry is a device for cleaning necessary parts by spraying pressure water or compressed air, and is composed of various shapes for each use, and is connected to an air tube or a water tube through a connector.

Such a handpiece connector is required to smoothly supply pressurized water or compressed air from the tube to the handpiece and to block backflow.

In the prior art 100 of the handpiece connector, as shown in Figs. 1 and 2, an inlet 111 is mounted to the tube 2 in the lower portion and the nipple 13 for attaching and detaching the headpiece 3 in the upper portion. The fluid pipe 110 and the power supply terminal 141 is provided.

By the way, the fluid conduit 110 of the above configuration connects the movement of the fluid by connecting the tube 2 and the handpiece 3 and is in a defenseless state against the backflow blockage.

Therefore, there was a deadly risk that backflow occurred during use and foreign substances in the oral cavity of the patient were reversed to cause the blockage of the duct to be blocked, as well as bacteria to infect the next patient.

In spite of such a risk, the reason why the check valve which is a general backflow prevention means cannot be adopted is that the structure of the fluid pipe is too thin to accommodate the check valve in the case of the handpiece connector.

The present invention has been devised to solve the above problems,

The purpose of the present invention is to install a backflow prevention valve made of a soft material in the fluid pipe when the injection port is opened by the fluid pressure during the injection when the injection is made and the discharge port is tightened by the elastic characteristics of the soft material when the pressure is extinguished This is to provide a medical handpiece connector which prevents the backflow of the fluid through the handpiece to prevent backflow through the handpiece, preventing the failure of the device due to the inflow of foreign substances into the connector and the blockage of the pipes, and ensuring safety against bacterial contamination. .

Medical handpiece connector according to the present invention to achieve the above object,

In the handpiece connector having a fluid inlet is formed in the lower inlet to be mounted to the fluid supply tube and the top of the handpiece detachable nipple,

In the middle of the fluid pipe is formed a chamber in which the inner diameter is expanded,

It is installed in the chamber, the body is made of a soft material and is formed inside the conical space narrowing in the direction of the discharge of the fluid, and is always blocked at the vertex position of the conical space and by the elasticity of the soft material only when the fluid pressure in the discharge progress direction It characterized in that it comprises a non-return valve for forming a discharge port to be drilled.

Hereinafter, an embodiment of a medical handpiece connector of the present invention will be described in more detail with reference to the accompanying drawings.

3 is an exploded cross-sectional view of an embodiment according to the present invention, FIG. 4A is a cross-sectional coupling view 1 (when fluid is discharged) of FIG. 1, and FIG. 4B is a cross-sectional coupling view 2 (when reverse flow occurs) of FIG.

As shown in Figure 3 to 4b, a fluid inlet (10) is formed in the inlet 11 to be mounted to the fluid supply tube (2) below and the nipple (13) for attaching and detaching the handpiece (3) is formed at the top. In the handpiece connector having a, the chamber 15 is formed in the middle of the fluid passage 10 is formed to expand the inner diameter, is installed in the chamber 15, the body 31 is made of a soft material and therein The conical space 33 is narrowed in the discharge direction of the fluid is formed and is always blocked at the vertex position of the conical space 33, the discharge port 35 is formed by the elasticity of the soft material only when the fluid pressure in the discharge progress direction is formed It is configured to include a non-return valve (30).

Here, the fluid line 10 is screwed in the inlet side member (10a) is provided with the inlet 11 and the discharge side member (10b) is provided with a handpiece detachable nipple 13, the inlet member (10a) ) Is formed at the upper portion of the standard inner diameter pipeline (s), the chamber forming expansion end 17 is accommodated therein, the discharge side member (10b) is the expansion end (17) of the inlet side member It is preferable that the inlet 19 of the standard inner diameter pipe s is formed in a funnel shape.

In addition, the non-return valve 30 has an introduction portion 19 having a body 31 having a cylindrical shape and having an inner diameter larger and parallel to the inlet of the conical space 33 than the standard inner diameter s. The non-return valve 30 is preferably made of silicon.

Reference numeral 1a denotes a main body, '41' is a power terminal pin, and '51' is a snap ring.

Look at the working state of the medical handpiece connector 1 according to the present invention having such a configuration.

The non-return valve 30 installed in the fluid line 10 is made of silicon and the discharge port 35 is formed in the shape of a vertex of the conical space 33 so that when the fluid pressure is applied to the internal space, that is, water or air At the time of injection, the ejection opening 35 is opened by the fluid pressure, and the supply movement of the fluid is performed (see FIG. 4A).

In addition, when the switch is switched to dissipate the fluid pressure therein, the outlet 35 of the non-return valve 30 is blocked by the elastic property of the soft material, thereby blocking the inflow of the fluid (see FIG. 4B). .

Therefore, since the backflow through the handpiece 3 is prevented during the procedure in the dentist, it is secured to prevent the blockage of the conduit due to the inflow of foreign substances or bacterial infection of the patient.

The present invention as described above is simple in the configuration of the non-return valve is also made easy to manufacture and assembly.

The present invention is not limited to the above-described embodiment and drawings because various substitutions, modifications, and changes are possible to those skilled in the art without departing from the technical spirit of the present invention. .

As described in detail above, in the medical handpiece connector according to the present invention, a backflow prevention valve made of a soft material is installed in the fluid line so that the ejection opening is drilled by the fluid pressure during injection, and the pressure is dissipated. When the discharge port is tightened by the elastic property of the soft material, the back flow of the fluid is blocked, preventing the back flow through the handpiece during the medical procedure, thus preventing the malfunction of the device due to the inflow of foreign substances into the connector and the blockage of the pipe and preventing bacterial contamination. There is an excellent effect of ensuring safety.

Claims (4)

In the handpiece connector having a fluid conduit (10) is formed below the inlet port (11) to be mounted to the fluid supply tube (2) and the upper handpiece (3) removable nipple (13), In the middle of the fluid passage 10 is formed a chamber 15, the inner diameter of which is expanded, It is installed in the chamber 15, the body 31 is made of a soft material and is formed in the conical space 33 is narrowed in the direction of the discharge of the fluid therein and is always blocked at the vertex position of the conical space 33 and discharged Medical handpiece connector, characterized in that it comprises a non-return valve 30 is formed in the discharge direction is formed by the elasticity of the soft material only when the fluid pressure in the direction of travel. The method of claim 1, The fluid passage 10 is screwed with the inlet side member (10a) is provided with the inlet 11 and the discharge side member (10b) is provided with a handpiece detachable nipple (13), The inlet side member (10a) has a chamber-forming expansion end (17) is formed in the upper portion of the standard inner diameter pipe (s) to accommodate the check valve 30 therein, The discharge side member (10b) receives the expansion end (17) of the inlet side member, the medical handpiece connector, characterized in that the inlet (19) of the standard inner diameter pipeline (s) is formed in a funnel. The method of claim 1, The non-return valve 30 is a medical body characterized in that the body 31 is made of a cylindrical shape and the inlet portion 19 is formed at the inlet of the conical space 33, the inner diameter is larger and parallel to the standard inner diameter (s) is provided. Handpiece connector. The method according to claim 1 or 3, The non-return valve 30 is a medical handpiece connector, characterized in that made of silicon.

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