WO2022196890A1

WO2022196890A1 - Disposable handpiece connector with combined filter

Info

Publication number: WO2022196890A1
Application number: PCT/KR2021/018347
Authority: WO
Inventors: 김만용; 김명근
Original assignee: 주식회사 둘로스텍
Priority date: 2021-03-16
Filing date: 2021-12-06
Publication date: 2022-09-22
Also published as: KR20220129164A; KR102513701B1

Abstract

The present invention relates to a disposable handpiece connector with a combined filter, capable of being coupled to a handpiece and in which a cartridge with a built-in filter is provided to be replaceable for single-use applications in a manner detachable from a main body part, thus preventing contamination or infection caused by exposure of saliva, blood, bacteria and foreign matter, which may be mixed in the air flowing inside the handpiece, to the inside of the oral cavity of a patient and preventing performance deterioration and malfunctions caused by the accumulation of foreign matter inside the handpiece.

Description

Disposable handpiece connector with combined filter

The present invention is a disposable handpiece connector with a filter coupled thereto, which can be coupled to the handpiece, and a cartridge in which the filter is embedded can be replaced with a disposable in a detachable manner to the main body so that it can be mixed with the air flowing inside the handpiece. It is an invention that prevents saliva, blood, bacteria and foreign substances from being exposed to the inside of the patient's oral cavity to become contaminated or infected, and to prevent performance degradation and malfunction caused by the 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 Notice No. 2011-49), and the middle class A55000 'Medical puncture machine, puncture machine and perforator machine' (pucturing, abrasion, perforating, instrument for medical use)

In addition to the dental handpiece, the perforator includes various cutting and perforator-related products such as a medical ablation device, an electric medical puncture device, and a medical cutting tool.

Dental handpieces are designated as Class 2, which does not pose a high risk to the human body, such as software for image transmission/output. The current classification is based on the revision of the 'Regulations on Medical Device Items and Classification by Item' (Food and Drug Administration Notice No. 2009-2) in 2009. dental handpiece).

Dental handpieces are instruments used by dentists around the world every day, and handpieces from around the world are used for medical activities such as cutting teeth and removing cavities in a patient's mouth.

These handpieces are classified as high-risk devices according to the 'Guidelines for Infection Control in Dental Clinics' of the Korean Society for Dental Hygiene and Infection Control, and must be cleaned, lubricated, idling, and sterilized immediately after use. However, in order to prepare a sterilized handpiece for each change of patient, a number of handpieces and a sterilizer must be provided.

Such a handpiece may be used after being washed outside, and although the external structure of the handpiece has the shape of a smooth frame, since the internal structure of the handpiece is very complicated, 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 is configured in a streamlined rod shape so as to be used for dental treatment, and the head of the handpiece is provided with a blade or a drill for cutting teeth.

Such a handpiece provides a driving force for operating the handpiece, and a plurality of flow passages and water passages supplied with air and cleaning water to eject air and cleaning water to the patient's oral cavity through the handpiece are provided in 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 it is preferable that the flow pipe and the water pipe are extended and formed to penetrate the inside of the handpiece.

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

The rear part of the handpiece is the end to which the coupling hose connected to the tank for receiving the compressor and washing water to receive the air is connected. A flow path pipe 23 and a water channel pipe 24 are provided.

In the 1 flow pipe 21, air flows in from the coupling hose, and air flows toward the driving body (motor) formed inside the handpiece, and the driving body is driven through the pressure of the air, and the driven air flows into the 2 flow pipe ( 22) is formed in a configuration that is exhausted through.

3 flow pipe 23 is a configuration in which air flows into the patient's oral cavity to blow out tooth powder when the posterior part of the patient's oral cavity is removed.

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

The above-described flow pipe and water pipe pass through the handpiece in the form of a tube, so it is difficult to clean, and foreign substances that can enter the tank supplying the air and washing water pass through the inside of the handpiece without being filtered. will do

The above-mentioned flow pipe and water pipe have a rational design 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 tolerances between parts, and foreign substances may enter the inside, and these foreign substances may flow into the tank where the air-generating compressor and washing water are stored through the hose connected to the handpiece.

In addition, in the course of treating a patient, foreign substances in the oral cavity are introduced into the compressor and tank through the tube through which air and washing water are introduced, so that even if the handpiece is sterilized and replaced, other patients Foreign substances may enter the inside of the oral cavity.

In addition, the handpiece is mounted on the operating table on which the operator mounts the dental equipment for the procedure, so that foreign substances that have not been removed by gravity can flow in along the coupling hose from the inside of the handpiece, which is Hygiene problems occur during the circulation process, and it may be stuck inside the handpiece and cause malfunction and contamination.

The above problems may cause serious problems in oral hygiene, and there is a big problem that the patient may be exposed to diseases by the blood of other patients or oral foreign substances.

In addition, foreign substances are accumulated inside the handpiece to deteriorate the performance of the handpiece and cause malfunction.

In order to solve the above problems, oral hygiene, cleanliness, prevention of exposure of patients to diseases, and a disposable connector with a built-in filter to increase operator convenience, a handpiece and a coupling hose through which air and washing water are introduced Prevents foreign substances from entering the patient's oral cavity in advance to prevent exposure of the patient to oral hygiene, cleanliness and diseases, and prevents foreign substances from accumulating inside the handpiece. There is a need for a disposable handpiece connector coupled with a filter to prevent piece failure.

An object of the present invention is to provide a disposable cartridge in 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 and replaceable cartridge and process the same.

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

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

The body portion according to the present invention, the first flow path portion; and a third flow path through which the air passing through the driving body is exhausted, and a detachable unit formed by cutting the cartridge unit in the vertical direction to complementarily detach and attach the cartridge unit from the upper part of the main body.

The detachable portion according to the present invention is coupled to the cartridge portion is inserted, the partition wall portion protruding so as to surround the lower outer peripheral surface of the cartridge portion; includes.

The cartridge unit according to the present invention, 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 the coupling of the first cartridge portion and the second cartridge portion, wherein the outer peripheral surface of the lower end of the first cartridge portion is recessed toward the inner peripheral surface so as to be engaged with the partition wall portion to be stepped lose

The first cartridge portion according to the present invention; and a groove portion therein, the groove portion the filter portion is located, the second cartridge is inserted inside.

The inner circumferential surface of the first cartridge portion on which the groove portion is formed according to the present invention is stepped so as to secure a space in which the filter portion can be located when the second cartridge portion is entered.

The first cartridge portion and the second cartridge portion according to the present invention are interference fit.

The present invention is an invention that has the effect of preventing performance degradation and failure due to the accumulation of foreign substances inside the handpiece. It has the effect of preventing exposure to diseases and oral hygiene of the patient.

1 is a view illustrating a conventional handpiece.

2 is a view illustrating the rear part of the conventional handpiece receiving air and washing water.

Figure 3 shows that the present invention is positioned between the handpiece and the coupling hose.

Figure 4 shows a state in which the main body part and the cartridge part of the present invention are combined.

5 is an exploded perspective view of the present invention.

Figure 6 shows the main body of the present invention.

Figure 7 shows the 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 illustrating the flow of fluid and the coupling structure in detail by showing an internal cross-section at the time of coupling with the coupled state of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein.

The terminology used herein is for the purpose of describing the embodiments, and therefore is 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" refers to the presence of one or more other components, steps, operations and/or elements mentioned. or addition is not excluded.

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

The disposable handpiece connector combined with the filter according to the present invention prevents foreign substances mixed with the air (AIR) discharged from the handpiece used by the operator in the patient's mouth during dental treatment from entering the inside of the handpiece and into the patient's oral cavity. It is an invention that prevents the problem of performance degradation and failure due to the accumulation of foreign substances inside.

In detail, foreign substances are mixed with air by the hose, compressor and external factors connected to the handpiece and enter the inside of the handpiece and the patient's mouth to prevent exposure to the patient's oral hygiene and disease, and the performance of the handpiece by foreign substances It is an invention for solving the problem of degradation and failure.

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 state embedded in the cartridge unit 200, and the cartridge unit 200 may be detachably attached to the body unit 100, and is preferably used for one-time use.

Here, disposable gloves are used once per patient during dental treatment and are discarded after treatment. This can solve the hygiene problem and has the effect of increasing the reliability of dental care.

Referring to FIG. 3, the present invention is located between the handpiece (H) and the coupling hose (T) and filters and aggregates foreign substances mixed with the air flowing in from the coupling hose in advance, and the foreign substances inside the handpiece (H) By providing this filtered air, a driving force is provided to the actuator inside the handpiece, and clean air can be provided to the patient's oral cavity.

In addition, in the present invention, it is preferable that the handpiece (H) is connected to the end at which the main body part 100 and the cartridge part 200 are coupled in a state in which the cartridge part 200 is coupled to the body part 100, and the body part ( 100 ) and the cartridge unit 200 are separated from each other to replace the cartridge unit 200 , and it is preferable that a new cartridge unit 200 can be used as a replacement type for attaching to the body unit 100 .

The body part 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) (H), and the lower end 120 is the handpiece (H) to supply air and washing water. It is preferable that the coupling hose (T) (T) for the connection is connected.

It is preferable that the main body 100 includes a plurality of flow passages 150 and water passage pipes 160 for receiving the above-described air and washing water.

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

The detachable portion 111 has a complementary shape so as to be coupled to the outer circumferential surface of the cartridge 200 to be described later, and when the cartridge 200 is coupled to the detachable section 111, it is preferable to 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 peripheral surface of the lower end of the cartridge part 200 in order to couple and fix the cartridge part 200 . ) is formed in the form of a partition wall.

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

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

The fourth flow path part 153 is formed inside the body part 100 so as to eject air into the patient's oral cavity, and air passes through the fourth flow path part 153 to eject air into the patient's oral cavity. can

The water channel 160 can jet the washing water supplied from the coupling hose (T) into the oral cavity of the patient, and also has a feature of lowering the overheated temperature of the handpiece (H) through the washing water.

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

In the vicinity of the detachable part 111 of the body part 100 in which the first flow path part 151 and the fourth flow path part 153 are located, the air is introduced into the handpiece (H) and into the oral cavity. When these are mixed, foreign substances may accumulate inside the handpiece (H) and cause a malfunction.

In addition, foreign substances and bacteria are introduced into the oral cavity of the patient, thereby causing problems in oral hygiene and exposing the patient to diseases.

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

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

The locking part 130 increases the operator's convenience by preventing the handpiece (H) from being pushed to the lower end part 120 of the body part 100 by abutting when the handpiece (H) is combined, and the handpiece (H) and the body. There is an effect of increasing the bonding force of the part 100 .

In addition, since the handpiece (H) can be fixed at the position where it should be coupled, it is possible to prevent the handpiece (H) from being damaged due to inaccurate 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 with each other may be provided. It is preferable that it can be selectively used according to the intention of the user and the designer.

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

Through this, the body part 100 and the coupling hose (T) do not separate from each other even under the pressure that air and washing water are sprayed, and there is an advantage that the coupling hose (T) and the body part 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.

As the filter unit 300 , a high-performance filter such as a well-known HEPA filter or ULPA filter may be used. As the type of the filter unit 300, a publicly known filter material may be used, which may be selectively used according to the intention of a user and a designer.

The air ejected from the inside of the handpiece (H) and the inside of the oral cavity through the filter unit 300 is removed from foreign substances so that the probability of contamination inside the oral cavity can be reduced as much as possible and the procedure can be performed safely, thereby maintaining the cleanliness of the oral cavity and providing clean air. effect that can be provided.

In addition, there is an advantage of being able to maintain 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 foreign substances from accumulating on the internal components constituting the motor and the handpiece (H) providing a driving force inside the handpiece (H).

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

5, 7 and 8, the cartridge unit 200 is a first cartridge unit 210, a second cartridge unit 220, and the first cartridge unit 210 and the second cartridge unit 220 are combined. and a second flow path part and a fifth flow path part formed by the

It is preferable that the first cartridge unit 210 and the second cartridge unit 220 are coupled in a mutually perpendicular direction, and it is preferable that the first cartridge unit 210 and the second cartridge unit 220 are integrally formed by an interference fit at the time of coupling.

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

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

In addition, it is preferable that the first cartridge unit upper end 212 is positioned above the first cartridge unit lower end 211 and the groove portion 2121 is formed so that the second cartridge unit 220 to be described later can be inserted thereinto. .

In addition, when the first cartridge unit 210 is coupled to the body unit 100 , the 2-1 th flow path part 213 and the fifth flow path part 213 and 5 communicate with the first flow path part 151 and the fourth flow path part 153 , respectively. -1 includes a flow path portion 214 .

The 2-1 flow path part 213 and the 5-1 flow path part 214 are connected to the 2-2 flow path part 223 and the 5-1 flow path part 214 of the second cartridge part 220, which will be described later. It is preferable to communicate with each other to form a second flow passage portion and a fifth passage portion, which will be described later.

In addition, the first cartridge unit 210 corresponds to the shape of the second cartridge unit 220 therein so that the second cartridge unit 220 to be described later can be press-fitted and complementary to the groove portion 2121 is formed. It is preferable to be

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

In addition, the diameter of the inner circumferential surface of the first cartridge portion 210 in which the groove portion 2121 is formed has a diameter of 'd' as shown in the drawing, and the second cartridge portion 220 and the filter portion of FIGS. 6 and 7 ( 300) also has a diameter of 'd' so that the filter unit 300 and the second cartridge unit 220 are in contact with the inner circumferential surface of the first cartridge unit 210 when they are located in the groove portion 2121, and are inserted from the outside It minimizes the inflow of the inflow of air, and it is characterized by a tight fit with a mutual interference fit tolerance.

Through this, the coupling force is increased and durability is increased, and the filter unit 300 can filter out foreign substances without leaving the groove portion 2121 , thereby increasing the air filtering efficiency.

Here, the inner peripheral surface 2122 of the first cartridge part 210 in which the groove part 2121 is located is formed to be stepped so that the filter part 300 can be located therein when the second cartridge part 220 to be described later is fitted and coupled. When the second cartridge unit 220 is fitted and coupled, the groove 2121 is sealed between the first cartridge unit 210 and the second cartridge unit 220 to provide a space for the filter unit 300 to be located. It is preferable to be

The second cartridge unit 220 will be described with reference to FIG. 8 .

The second cartridge unit 220 may be integrally coupled to the first cartridge unit 210 by interference fit.

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 second cartridge part lower end 221 is preferably recessed so that the outer peripheral surface is stepped so that it can be inserted into the stepped inner peripheral surface of the first cartridge part 210 in the form of a hook, and the diameter is the second cartridge part upper end 222 of It is preferably smaller than the diameter.

Accordingly, it is possible to provide a space by sealing the groove portion 2121 so that the first cartridge portion 210 is engaged with the stepped inner circumferential surface so that the filter portion 300 can be located.

The diameter of the lower end 221 of the second cartridge part has a diameter of 'd', which is the same as the diameter of the first cartridge part 210, and the diameter of the lower end of the second cartridge part has a 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 integrally configured by being coupled in an interference fit structure. This has the advantage of being able to increase the reliability of dental care by preventing reuse of the first cartridge unit 210 and the second cartridge unit 220 by separating them.

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

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

The 2-2 flow path part 223 may communicate with the 2-1 flow path part 213 when the first cartridge part 210 and the second cartridge part 220 are coupled.

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

In the 5-2 flow path part 224, the first cartridge part 210 and the second cartridge part 220 may communicate with the 5-1 flow path part 214, and communicate with each other to form a fifth flow path part. can

The fifth flow passage communicates with the fourth flow passage 153 when the cartridge unit 200 and the main body 100 are coupled to each other to eject air into the patient's oral cavity.

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

5 , the first cartridge unit 210 , the filter unit 300 , and the second cartridge unit 220 are sequentially coupled to the main body unit 100 .

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

Alternatively, in a state in which the cartridge unit 200 is configured by combining the second cartridge unit 220 in a state in which the filter unit 300 is embedded in the first cartridge unit 210, the cartridge unit 200 is inserted into the body unit 100. It may be coupled in a detachable form to a point of the ie, the detachable part 111 .

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

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

By combining the first cartridge part 210 and the second cartridge part 220, the groove part 2121 of the first cartridge part 210 is sealed to form a hollow part (space) of an empty space, and the filter part 300 ) is located and the foreign substances and bacteria mixed with the air flowing in from the first flow path part 151 are filtered by the filter part 300 and supplied through the second flow path part to operate the actuator or motor formed inside the handpiece (H). can do it

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

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

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

The air flowing into the fourth flow path part 153 is filtered by the filter unit 300 to remove foreign substances (A) and bacteria, and then moves to the fifth flow path part, and the air moves into the handpiece (H) to remove the handpiece (H). Clean air can be ejected into the patient's mouth.

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

This has the effect of promoting the oral health of the patient because it filters out foreign substances and bacteria that may be included in the air ejected from the conventional handpiece (H), and solves the hygiene problem to ensure hygiene during dental treatment and quality of care. This has an improved effect.

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

In addition, the air is filtered by the filter unit 300 to prevent foreign substances that can accumulate inside the handpiece (H). It has the effect of preventing the inflow of foreign substances.

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

Therefore, the present invention secures maximum hygiene during dental treatment by using the cartridge part 200 for a one-time use by designing the main body part 100 and the cartridge part 200 to be separable, and is applied to the fluid supplied to the handpiece (H). It is possible to keep the handpiece (H) clean by ensuring objective and complete stability and sealing, and it has the effect of maintaining an optimal state for medical hygiene.

Although 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 by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

Claims

body part;

a first flow path through which air directed toward the driving body in the handpiece coupled to the main body passes;

Doedoe coupled to one point of the main body portion, a second passage portion communicating with the first passage portion; a cartridge portion having a; and

a filter unit formed at a point inside the cartridge unit to filter the air; and

That the cartridge unit is coupled to be detachable

Disposable handpiece connector with integrated filter.
According to claim 1,

The body part,

the first flow path part;

a third flow path through which air passing through the driving body is exhausted; and

That comprising a;

Disposable handpiece connector with integrated filter.
3. The method of claim 2,

The detachable portion is coupled to the cartridge portion is inserted, the partition wall portion protruding so as to surround the lower outer peripheral surface of the cartridge portion; that comprising a

Disposable handpiece connector with integrated filter.
4. The method of claim 3,

The cartridge unit,

a first cartridge unit;

a second cartridge unit coupled to the first cartridge unit in a vertical direction; and

and the second flow path part formed by the coupling of the first cartridge part and the second cartridge part;

The outer circumferential surface of the lower end of the first cartridge portion is recessed toward the inner circumferential surface so as to be engaged with the partition wall portion to be stepped

Disposable handpiece connector with integrated filter.
5. The method of claim 4,

The first cartridge part forms a groove therein;

The groove portion, but the filter portion is located, that the second cartridge is inserted

Disposable handpiece connector with integrated filter.
6. The method of claim 5,

The inner circumferential surface of the first cartridge part on which the groove is formed is stepped to secure a space in which the filter part can be located when the second cartridge part enters.

Disposable handpiece connector with integrated filter.
5. The method of claim 4,

That the first cartridge portion and the second cartridge portion are press-fit coupled

Disposable handpiece connector with integrated filter.