KR102513701B1 - Disposable handpiece connector with filter - Google Patents

Abstract

The present invention is a disposable handpiece connector coupled with a filter, which can be coupled to the handpiece, and has a filter-embedded cartridge detachable from the main body so as to be disposable and replaceable so that it can be mixed with the air flowing inside the handpiece. It is an invention to prevent saliva, blood, bacteria and foreign substances from being exposed to the inside of the patient's oral cavity from contamination or infection, and to prevent performance degradation and failure caused by accumulation of foreign substances inside the handpiece.

Description

Disposable handpiece connector with filter {DISPOSABLE HANDPIECE CONNECTOR WITH FILTER}

The present invention is a disposable handpiece connector coupled with a filter, which can be coupled to the handpiece, and has a filter-embedded cartridge detachable from the main body so as to be disposable and replaceable so that it can be mixed with the air flowing inside the handpiece. It is an invention to prevent saliva, blood, bacteria and foreign substances from being exposed to the inside of the patient's oral cavity from contamination or infection, and to prevent performance degradation and failure caused by accumulation of foreign substances inside the handpiece.

Dental handpieces are broadly classified as '(A) instruments and machines' in accordance with the Regulations on Medical Device Items and Grades by Item (Food and Drug Administration Notification No. 2011-49), and the middle classification A55000 'Medical puncher, driller, and driller (pucturing, abrasion, perforating, instrument for medical use)

In addition to dental handpieces, drilling machines include various cutting and drilling related products such as medical cutting devices, electric medical drilling machines, and medical cutting tools.

Dental handpieces, such as image transmission/output software, are designated as Grade 2, which do not pose a high risk to the human body. As the current classification was amended in 2009 by the 'Regulations on Medical Device Items and Ratings by Item' (Food and Drug Administration Notice No. 2009-2), dental handpieces are divided into two individual items (electric dental handpiece, air compression dental handpiece).

Dental handpieces are instruments used daily by dentists around the world, and handpieces around the world are used in medical practices such as cutting teeth and removing cavities in the patient's mouth.

These handpieces are classified as high-risk instruments according to the 'Infection Control Guidelines for Dental Clinics' of the Korean Society for Dental Hygiene Infection Control and must be washed, lubricated, idled, and sterilized immediately after use. However, in order to prepare a sterilized handpiece for each patient change, a number of handpieces and a sterilizer must be provided, but due to the high cost, some dentists use a simple sterilized handpiece.

There are cases in which such a handpiece is used after washing only the outside, and the external structure of the handpiece has a smooth frame shape, but the internal structure of the handpiece is very complicated, so it cannot be safely used only by external disinfection.

A conventional general handpiece structure will be described with reference to FIG. 1 .

The handpiece 10 has a streamlined bar shape so that it can be used for dental treatment, and a blade or drill for cutting teeth is provided at the head of the handpiece.

This handpiece provides a driving force for operating the handpiece, and a plurality of flow pipes and water pipes supplied with air and washing water to eject air and washing water into the patient's oral cavity through the handpiece are provided at the rear part of the handpiece (20). ) That is, it is formed from the end connected to the coupling hose for supplying air and washing water to the handpiece, and the flow pipe and the water pipe are preferably formed extending through the inside of the handpiece.

Referring to FIG. 2, P, which is an enlarged view of the rear part 20 of the handpiece, will be described.

The rear part of the handpiece is the end where the coupling hose connected to the tank for receiving air and the compressor for receiving washing water is connected. Looking at P, which is an enlarged view of this, 1 flow pipe 21, 2 flow pipe 22, 3 A flow pipe 23 and a water pipe 24 are provided.

Air flows into the first flow pipe 21 from the coupling hose and flows toward the driving body (motor) formed inside the handpiece, and drives the driving body through the pressure of the air. 22) is formed in a configuration that is exhausted through.

The three-way tube 23 is a configuration in which air flows into the patient's mouth to blow out tooth powder when removing the posterior teeth of the patient's mouth.

The water pipe is formed to prevent overheating of the handpiece and to clean the spherical treatment area at the same time.

Since the above-mentioned flow pipe and water pipe pass through the handpiece in the form of a pipe, it is difficult to clean, and foreign substances that may flow into the compressor supplying air and the tank supplying washing water pass through the inside of the handpiece without being filtered. will do

The above-mentioned flow pipe and water pipe are rationally designed within the structure of the dental device to ensure maximum hygiene and ensure objective and complete stability and airtightness to the fluid supplied to the devices, so that the inside of the handpiece can be cleaned and sterilized. Even if there is, frequent use of the handpiece may cause tolerance between parts, and foreign substances may flow into the inside, and these foreign substances may flow into the compressor that generates air and the tank where the washing water is stored through the hose connected to the handpiece.

In addition, in the process of treating patients, oral foreign substances flow into the compressor and tank through the coupling hose through the pipe through which air and washing water flow in, and even if the handpiece is sterilized and replaced, other patients may be affected by foreign substances that have flowed into the compressor and tank. Foreign substances may enter the oral cavity of the patient.

In addition, the handpiece is mounted on the operating table where the operator mounts dental equipment for the procedure, so that foreign substances that have not yet been removed by gravity can flow in along the coupling hose from the inside of the handpiece, which causes air flow through the flow pipe. Hygiene problems arise during the circulation process, and it may be adhered to the inside of the handpiece, causing malfunction and contamination.

The above problems can cause serious problems in oral hygiene, and a big problem arises in that patients can be exposed to diseases by other patients' blood or oral foreign substances.

In addition, foreign substances accumulated inside the handpiece may deteriorate the performance of the handpiece and cause a failure.

In order to solve the above-mentioned problems, a disposable connector with a built-in filter is used to improve oral hygiene, cleanliness, and prevention of patient exposure to diseases, and to increase operator convenience. It prevents foreign substances mixed with the air blown into the patient's mouth from entering the patient's mouth in advance to prevent the patient from being exposed to oral hygiene, cleanliness, and disease, and prevents foreign substances from accumulating in the handpiece. There is a need for a disposable handpiece connector coupled with a filter that prevents piece failure.

Republic of Korea Patent Publication No. 10-2011-0078708

An object of the present invention is to provide a disposable cartridge to a connector coupled to a handpiece to prevent contamination and foreign substances from accumulating inside the handpiece, and to aggregate the foreign substances into a disposable replaceable cartridge and treat them collectively.

In addition, there is an object of maintaining cleanliness and promoting oral health of the patient by providing a disposable and detachable cartridge equipped with a filter so as to eject clean air into the oral cavity of the patient.

Disposable handpiece connector coupled to the filter according to the present invention includes a body portion; a first flow passage through which air toward the driving body in the handpiece coupled to the main body passes; Doedoe coupled to a point of the body portion, the cartridge unit having a second flow path portion communicating with the first flow path portion; and a filter unit formed at a point inside the cartridge unit and filtering the air, wherein the cartridge unit is detachably coupled.

The body portion according to the present invention, the first flow path portion; and a detachable portion formed by cutting in a vertical direction so that the cartridge portion is detachably detachable in a complementary manner from an upper portion of the third flow path portion and the main body portion through which the air passing through the driving body is exhausted.

The detachable part according to the present invention includes a barrier rib part protruding to surround the lower outer circumferential surface of the cartridge part, doedoe coupled to the inside of the cartridge part.

The cartridge unit according to the present invention, the first cartridge unit; A second cartridge unit coupled to the first cartridge unit in a vertical direction; And the second flow passage portion formed by the coupling of the first cartridge unit and the second cartridge unit; including, the outer circumferential surface of the lower end of the first cartridge unit is recessed toward the inner circumferential surface so as to be engaged with the partition wall portion is stepped lose

The first cartridge according to the present invention forms a groove portion therein, and the filter portion is located in the groove portion, but the second cartridge is internalized.

The inner circumferential surface of the first cartridge unit in which the groove portion is formed according to the present invention is stepped to secure a space in which the filter unit can be positioned when the second cartridge unit is inward.

The first cartridge unit and the second cartridge unit according to the present invention are coupled with an interference fit.

The present invention is an invention that has the effect of preventing performance degradation and failure by accumulating foreign substances inside the handpiece, and in detail, foreign substances are mixed into the air by a hose connected to the handpiece, a compressor, and external factors, and the inside of the handpiece and the patient's mouth It is effective in preventing patients from being exposed to oral hygiene and diseases.

1 is a diagram for explaining a conventional handpiece.
Figure 2 is a view to explain the back portion of the conventional handpiece supplied with air and washing water.
Figure 3 shows that the present invention is located between the handpiece and the coupling hose.
4 shows a state in which the main body part and the cartridge part of the present invention are coupled.
5 shows an exploded perspective view of the present invention.
6 shows the body part of the present invention.
Figure 7 shows a first cartridge unit of the present invention.
Figure 8 shows a second cartridge unit of the present invention.
9 shows a filter unit of the present invention.
10 is a view to explain in detail the flow of fluid and the coupling structure by showing an internal cross-section when coupled with the coupling state of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

Terms used in this specification are for describing embodiments, and therefore are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, "comprise" and/or "comprising" means that a stated component, step, operation, and/or element is the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

In the present invention, the longitudinal direction is the 'X-axis direction' with reference to FIG. 4, the width direction is the 'Y-axis direction', the vertical direction means the 'Z-axis direction', the upper side means the upper direction with respect to the Z-axis, and the lower side means the upper side means the opposite direction.

Disposable handpiece connector combined with a filter according to the present invention prevents foreign substances mixed in the air (AIR) discharged from the handpiece used by the operator into the patient's oral cavity during dental treatment from entering the handpiece and the patient's oral cavity. It is an invention to prevent performance deterioration and failure by accumulating foreign substances inside.

In detail, the hose connected to the handpiece, the compressor, and external factors mix foreign substances into the air and enter the inside of the handpiece and the patient's mouth to prevent the patient's oral hygiene and exposure to disease, and the performance of the handpiece due to foreign substances It is an invention to solve the problem of degradation and failure.

Referring to FIGS. 4 and 5 , the present invention includes a body part 100 , a cartridge part 200 and a filter part 300 .

The filter unit 300 is located in a built-in state in the cartridge unit 200, and the cartridge unit 200 can be detached from the body unit 100 and is preferably used for one time use.

Here, disposable means that it is used once per patient during dental treatment, and that it is discarded after treatment. As a result, it is possible to solve the problem of hygiene and has an effect of increasing the reliability of dental treatment.

Referring to FIG. 3, the present invention is located between the handpiece (H) and the coupling hose (T) to pre-filter and aggregate foreign substances mixed in the air flowing in from the coupling hose, and the foreign substances inside the handpiece (H) This filtered air is provided to provide a driving force to the actuator inside the handpiece, and clean air can be provided to the oral cavity of the patient.

In addition, in the present invention, in a state in which the cartridge unit 200 is coupled to the body unit 100, it is preferable that the handpiece (H) is connected to the end where the body unit 100 and the cartridge unit 200 are coupled, and the body unit ( 100) and the cartridge unit 200 are separated from each other and the cartridge unit 200 is replaced, so that a new cartridge unit 200 can be attached to the main body unit 100.

The body portion 100 will be described with reference to FIGS. 5 and 6 .

6, the upper end 110 of the main body 100 is an end connected to the handpiece H, and the lower end 120 supplies air and washing water to the handpiece H. It is preferable that the coupling hose (T) (T) for the connection is connected.

It is preferable that the body part 100 has a plurality of flow passage parts 150 and a water pipe 160 formed therein for receiving the aforementioned air and washing water.

The upper end portion 110 of the body portion 100 is formed with a detachable portion 111 in which a portion thereof is cut to form a semicircular cross section in a vertical direction with respect to the center at the upper end so that the cartridge portion 200 can be coupled thereto.

Detachable portion 111 forms a complementary shape so as to be coupled with the outer circumferential surface of the cartridge unit 200 to be described later, and when the cartridge unit 200 is coupled to the detachable portion 111, it is preferable that the combined form form a circular outer circumferential surface.

The detachable part 111 is a partition wall part 1112 in the form of a semicircular band protruding so that a groove 1111 is formed therein so as to surround a part of the outer circumferential surface of the lower end of the cartridge part 200 to couple and fix the cartridge part 200. ) is formed in the form of a partition wall.

Referring to FIG. 6, the flow path part 150 and the water pipe 160 are coupled to the hand piece H and the first flow path part 151 through which air for rotating the motor inside the hand piece H flows, and the third flow path It is formed of a fourth flow passage part 153 through which air flows to remove tooth foreign substances generated in the patient's oral cavity and the portion 152 .

Air is introduced into the handpiece (H) through the first flow path portion 151, and the air introduced through the first flow path portion 151 is provided as a driving force to drive the motor and is discharged through the third flow path portion 152. It is composed of a configuration that is exhausted. That is, it is preferable that a driving body (not shown), that is, a motor is driven through the first flow path 151 and air used for driving is exhausted through the third flow path 152 .

The fourth flow passage 153 is formed inside the main body 100 so as to blow air into the patient's oral cavity, and air passes through the fourth flow passage 153 to blow air into the patient's mouth. can

The water pipe 160 is characterized in that the washing water supplied from the coupling hose (T) can be ejected into the patient's oral cavity and the overheated temperature of the handpiece (H) can be lowered through the washing water.

It is preferable that the above-described plurality of flow passages 150 and the water pipe 160 are positioned in a compartmentalized manner, and are understood as a configuration in which air and washing water are supplied from the coupling hose T, respectively, rather than communicating with each other.

The vicinity of the attachable and detachable part 111 of the body part 100 where the first flow path part 151 and the fourth flow path part 153 are located is characterized in that air flows into the inside of the handpiece H and the oral cavity, and foreign matter is present in the air. If they are mixed, foreign substances are accumulated inside the handpiece (H), which may cause a malfunction.

In addition, foreign substances and bacteria are introduced into the patient's oral cavity, resulting in oral hygiene problems and the patient's exposure to diseases.

Therefore, the cartridge unit 200 of the present invention is coupled to the detachable portion 111 of the body portion 100 where the first flow path portion 151 and the fourth flow path portion 153 are located to remove foreign substances that may be mixed in the air. The filtered air from which foreign substances are removed can be provided as a driving force for operating the handpiece (H), and clean air can be provided to the oral cavity of the patient.

A hooking portion 130 having a larger diameter than the upper end portion 110 is formed between the upper end portion 110 and the lower end portion 120 of the body portion 100 .

The hooking portion 130 abuts when the handpiece H is coupled to prevent the handpiece H from being pushed to the lower end 120 of the main body portion 100, thereby increasing the convenience of the operator and increasing the convenience of the handpiece H and the main body. There is an effect of increasing the bonding force of the unit 100.

In addition, since the handpiece (H) can be fixed at a position where it must be coupled, there is an effect of preventing the handpiece (H) from being damaged due to incorrect coupling.

In addition, a coupling (not shown) or a coupling member (not shown) coupled along the outer circumferential surface to firmly couple the handpiece (H) when the engaging portion 130 and the handpiece (H) come into contact and are coupled will be provided It is preferable that it can be selectively used according to the intention of the user and designer.

In addition, at the lower end 120 of the main body 100, a coupling end 140 for connecting the coupling hose T and the main body 100 is formed to surround the outer circumferential surface of the lower end 120. Preferably And although not shown in the drawings, it is preferable that the outer circumferential surface of the coupling end 140 can be selectively coupled with a screw thread or coupling member for coupling.

Through this, there is an advantage in that the body portion 100 and the coupling hose T do not separate from each other even when air and washing water are sprayed, and the coupling hose T and the body portion 100 are firmly connected.

Referring to FIG. 9, the filter unit 300 is preferably inserted into the cartridge unit 200, and a hollow part (space) for accommodating the filter unit 300 is preferably formed inside the cartridge unit 200. and a detailed description will be given later.

The filter unit 300 may use a high-performance filter such as a known HEPA filter or ULPA filter. As the type of filter unit 300, publicly known filter materials may be used, which may be selectively used according to the intentions of users and designers.

Foreign substances are removed from the air ejected into the inside of the handpiece (H) and the oral cavity through the filter unit 300, so that the procedure can be performed safely while minimizing the probability of contamination in the oral cavity, thereby maintaining cleanliness inside the oral cavity and providing clean air. There are effects that can be provided.

In addition, there is an advantage in maintaining a clean treatment space by preventing foreign substances contaminated inside the handpiece (H) from leaking out of the treatment space by the filter unit 300 .

In addition, there is an effect of increasing the durability of the handpiece (H) by preventing the accumulation of foreign substances on the internal components constituting the motor and handpiece (H) that provides driving force to the inside of the handpiece (H).

Referring to FIG. 5 , the cartridge unit 200 may be detachably detachable from the body unit 100 and a filter unit 300 may be built in.

Referring to FIGS. 5, 7 and 8, the cartridge unit 200 includes a first cartridge unit 210, a second cartridge unit 220, and a combination of the first cartridge unit 210 and the second cartridge unit 220. It includes a second flow path portion and a fifth flow path portion formed by being formed.

The first cartridge unit 210 and the second cartridge unit 220 are preferably coupled in a mutually perpendicular direction, and are preferably formed integrally by interference fit during coupling.

Referring to FIG. 7, the first cartridge unit 210 is divided into an upper end 212 of the first cartridge unit and a lower end 211 of the first cartridge unit, and the outer circumferential surface of the lower end 211 of the first cartridge unit is an inner circumferential surface. It is preferable to be partially depressed and stepped.

In detail, a portion of the outer circumference of the lower end 211 of the first cartridge unit is recessed in the direction of the inner circumferential surface so that it can be inserted into and coupled to the above-described partition wall portion 1112, corresponding to the inner diameter of the partition wall portion 1112 and complementarily inserted into the It is desirable to be able to

In addition, the upper end 212 of the first cartridge unit is located on the upper side of the lower end 211 of the first cartridge unit, and it is preferable that a groove 2121 is formed so that the second cartridge unit 220 to be described later can be inserted. .

In addition, when the first cartridge unit 210 is coupled to the body portion 100, the 2-1 flow path portion 213 and the fifth flow path portion 213 communicating with the first flow path portion 151 and the fourth flow path portion 153, respectively. -1 It includes the flow path part 214.

The 2-1 flow path part 213 and the 5-1 flow path part 214 are the 2-2 flow path part 223 and the 5-1 flow path part 214 of the second cartridge unit 220, which will be described later. It is preferable that the second and fifth flow passages are coupled in communication with each other, which will be described later.

In addition, the first cartridge unit 210 is formed with a groove 2121 complementary thereto corresponding to the shape of the second cartridge unit 220 so that the second cartridge unit 220 to be described later can be press-fitted. it is desirable to be

It is preferable that the filter unit 300 is positioned in the aforementioned groove 2121 while being inserted, and the second cartridge unit 220 is inserted into the groove 2121 and coupled to each other while the filter unit 300 is inserted. do.

In addition, the diameter of the inner circumferential surface of the first cartridge unit 210 in which the groove portion 2121 is formed has a diameter of 'd' as shown in the drawing, and the second cartridge unit 220 and the filter unit of FIGS. 6 and 7 ( 300) In addition, having a diameter of 'd', the filter unit 300 and the second cartridge unit 220 are placed in the groove 2121 so as to come into contact with the inner circumferential surface of the first cartridge unit 210 without gap, from the outside. It minimizes the inflow of incoming air and has the characteristics of being firmly coupled with mutual interference fit tolerance.

Through this, there is an effect of increasing bonding force and durability, and the efficiency of filtering air is increased because the filter unit 300 can filter foreign substances without leaving the groove unit 2121.

Here, the inner circumferential surface 2122 of the first cartridge unit 210, where the groove portion 2121 is located, is formed stepwise so that the filter unit 300 can be located therein when the second cartridge unit 220 to be described later is inserted and coupled thereto. When the second cartridge unit 220 is inserted and coupled, the groove 2121 is sealed between the first cartridge unit 210 and the second cartridge unit 220, providing a space in which the filter unit 300 can be located. it is desirable to be

Referring to FIG. 8, the second cartridge unit 220 will be described.

The second cartridge unit 220 is press-fitted to the first cartridge unit 210 and may be integrally coupled.

The second cartridge unit 220 includes an upper end 222 of the second cartridge unit and a lower end 221 of the second cartridge unit.

The outer circumferential surface of the lower end 221 of the second cartridge unit 221 is preferably recessed and stepped so that it can be inserted into the stepped inner circumferential surface of the first cartridge unit 210 in a hooked form, and the diameter is that of the upper end 222 of the second cartridge unit. Smaller than the diameter is preferred.

Accordingly, a space may be provided by sealing the groove 2121 so that the filter unit 300 may be positioned by being engaged with the stepped inner circumferential surface of the first cartridge unit 210 .

The diameter of the lower end 221 of the second cartridge unit has the same diameter of 'd' as the diameter of the first cartridge unit 210 described above, and the diameter of the lower end of the second cartridge unit has the diameter of 'd'. It may have a diameter with an interference fit tolerance added to allow for an interference fit.

The first cartridge unit 210 and the second cartridge unit 220 are combined in an interference fit structure and are integrally configured. This has the advantage of increasing the reliability of dental treatment by preventing reuse by separating the first cartridge unit 210 and the second cartridge unit 220.

In addition, the first cartridge unit 210 and the second cartridge unit 220 are tightly coupled with an interference fit structure to prevent separation from each other by pressure when high-pressure air passes through, thereby increasing durability and increasing foreign matter accumulated therein. This can be prevented from leaking out.

The second cartridge part 220 includes a 2-2 passage part 223 and a 5-2 passage part 224 penetrating the upper end 222 and the lower end 221 of the second cartridge part in the vertical direction. do.

When the first cartridge unit 210 and the second cartridge unit 220 are coupled, the 2-2 channel unit 223 may be in communication with the 2-1 channel unit 213 .

The 2-2 flow path portion 223 communicates with the 2-1 flow path portion 213 to form a second flow path portion, and the second flow path portion communicates with the first flow path portion 151 to form the inside of the handpiece H. air can be circulated toward the actuator.

The 5-2 flow path unit 224 may communicate with the 5-1 flow path unit 214 between the first cartridge unit 210 and the second cartridge unit 220, and are mutually communicated to form a fifth flow path unit. can

When the cartridge part 200 and the main body part 100 are coupled, the fifth passage part communicates with the fourth passage part 153 so as to eject air into the oral cavity of the patient.

Referring to FIGS. 3, 4, 5 and 10, the coupling method and operation process of the present invention will be described in detail.

Based on the illustration of Figure 5, the main body portion 100, the first cartridge unit 210, the filter unit 300 and the second cartridge unit 220 are sequentially coupled to each other.

Based on the above-described combining process, the present invention can be sequentially combined.

Alternatively, in a state in which the filter unit 300 is built into the first cartridge unit 210 and the second cartridge unit 220 is combined to form the cartridge unit 200, the cartridge unit 200 is placed in the body unit 100 At one point, that is, it can be coupled to the detachable part 111 in a detachable form.

When the cartridge unit 200 is coupled to the detachable unit 111, the partition wall unit 1112 is coupled to surround the lower end of the cartridge unit 200, that is, the lower end 211 of the first cartridge unit, so that the cartridge unit 200 is formed. It is firmly coupled to the detachable part 111 and has an effect of preventing separation.

Referring to FIG. 10, the second flow path portion formed by combining the 2-1 flow path portion 213 of the first cartridge unit 210 and the 2-2 flow path portion 223 of the second cartridge unit 220 is It is preferable to communicate with one flow path part 151.

The groove part 2121 of the first cartridge part 210 is sealed by the combination of the first cartridge part 210 and the second cartridge part 220 to form a hollow part (space) of the empty space, and the filter part 300 ) is located, foreign matter and germs mixed in the air flowing in from the first flow path unit 151 are filtered by the filter unit 300 and supplied through the second flow path unit to operate the actuator or motor formed inside the handpiece (H). can make it

Here, the vertical length of the filter unit 300 can be set in the space where the filter unit 300 is located to have optimal filter efficiency, and the size and position of the filter unit 300 in the space can be adjusted. it is desirable

Through this, there is an effect of preventing foreign matter (A) from entering the handpiece (H), increasing durability of the handpiece (H), and preventing failure.

In addition, the first cartridge unit 210 and the second cartridge unit 220 are coupled so that the 5-1 flow path portion 214 and the 5-2 flow path portion 224 communicate with each other to form a fifth flow path portion, The fifth flow path unit communicates with the fourth flow path unit 153 when the cartridge unit 200 and the body unit 100 are coupled.

The air introduced into the fourth flow path 153 is filtered by the filter unit 300 to filter foreign substances (A) and bacteria, and is moved to the fifth flow path, and the air is moved into the handpiece (H) to clean the handpiece (H). Through this, clean air can be blown into the patient's mouth.

In detail, the air introduced into the fourth flow path 153 is filtered through the filter unit 300 built in the cartridge unit 200, and the filtered air is supplied to the handpiece H through the fifth flow path. It can blow clean air into the patient's mouth.

Since this filters out foreign substances and germs that may be included in the air ejected from the conventional handpiece (H), it has the effect of promoting the patient's oral health and solves hygiene problems to secure hygiene during dental treatment to provide quality of care. This has an enhancing effect.

In summary, the cartridge unit 200 of the present invention is coupled to the main body unit 100 and can be configured in a separate coupling type, and can be replaced immediately after treating one patient, so that it can be hygienically managed.

In addition, the air is filtered by the filter unit 300 to prevent foreign substances that may accumulate inside the handpiece (H), and when the air is blown into the patient's mouth through clean air, foreign substances and germs are removed to enter the patient's mouth. It has the effect of preventing foreign substances from entering.

In addition, since only the cartridge unit 200 can be simply separated and exchanged for one-time use, convenience is increased, and condensed foreign substances can be easily removed only by exchanging the cartridge unit 200.

Therefore, the present invention is designed so that the body part 100 and the cartridge part 200 can be separated, and the cartridge part 200 is used disposablely to ensure maximum hygiene during dental treatment and to reduce the fluid supplied to the handpiece H. By securing objective and complete stability and airtightness, the handpiece (H) can be kept clean, and there is an effect of maintaining an optimal condition for medical treatment hygiene.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also made according to the present invention. falls within the scope of the rights of

H: handpiece,
T: coupling hose,
100: body part,
110: upper end of the main body,
111: detachable part,
1111: Home,
1112: bulkhead part,
120: lower end of the main body,
130: hanging part,
140: coupling end,
150: Euro part,
160: water pipe,
200: cartridge unit,
210: first cartridge unit,
211: lower end of the first cartridge unit,
212: upper end of the first cartridge unit,
2121: groove part,
2122: the inner circumferential surface of the first cartridge unit,
220: second cartridge unit,
300: filter unit.

Claims (7)

body part;
a first flow passage through which air toward the driving body in the handpiece coupled to the main body passes;
Doedoe coupled to a point of the main body portion, the second flow passage portion communicating with the first flow passage portion; having a cartridge portion; and
A filter unit formed at a point inside the cartridge unit to filter the air;
The cartridge unit is coupled to be detachable,
The body part,
the first flow path part;
A third flow passage through which the air passing through the driving body is exhausted; and
A detachable portion formed by cutting in the vertical direction so that the cartridge portion is detachably attached and detachable from the top of the main body portion;
Disposable handpiece connector with integrated filter. delete According to claim 1,
The detachable portion doedoe coupled to the inside of the cartridge unit, a partition wall portion protruding to surround the outer circumferential surface of the lower portion of the cartridge unit; including
Disposable handpiece connector with integrated filter. According to claim 3,
The cartridge part,
a first cartridge unit;
A second cartridge unit coupled to the first cartridge unit in a vertical direction; and
The second flow path portion formed by coupling the first cartridge unit and the second cartridge unit; includes,
The outer circumferential surface of the lower end of the first cartridge unit is recessed toward the inner circumferential surface so as to be engaged with the partition wall portion, which is stepped.
Disposable handpiece connector with integrated filter. According to claim 4,
Forming a; groove portion in the first cartridge portion,
Wherein the groove portion is the filter portion, the second cartridge is inserted into
Disposable handpiece connector with integrated filter. According to claim 5,
The inner circumferential surface of the first cartridge unit in which the groove portion is formed is stepped to secure a space in which the filter unit can be located when the second cartridge unit is inside
Disposable handpiece connector with integrated filter. According to claim 4,
Wherein the first cartridge unit and the second cartridge unit are press fit coupled
Disposable handpiece connector with integrated filter.

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