CN218045923U

CN218045923U - Bench device for lubricating or cleaning, disinfecting and lubricating a dental handpiece

Info

Publication number: CN218045923U
Application number: CN202220649267.3U
Authority: CN
Inventors: 瓦莱里奥·博尔萨里; 朱利奥·马蒂乌佐
Original assignee: Cefla SCARL
Current assignee: Cefla SCARL
Priority date: 2021-03-23
Filing date: 2022-03-22
Publication date: 2022-12-16
Anticipated expiration: 2032-03-22
Also published as: FR3121033B3; IT202100006899A1; FR3121033A3

Abstract

A bench device for lubricating or cleaning, disinfecting and lubricating a dental handpiece (3, 4, 5), comprising a connector (7) for the handpiece, the connector (7) being located in an openable cavity (6), the connector (7) being arranged on a cartridge with its longitudinal axis parallel to the ground, characterized in that the connector (7) is rotatable between two extreme positions through all intermediate positions between the two extreme positions: -in a first extreme position the dental handpiece (3, 4, 5) is approximately perpendicular to the ground; -in a second extreme position the dental handpiece (3, 4, 5) is brought to an angle in the range of 45 ° to 90 ° relative to the first extreme position.

Description

Bench device for lubricating or cleaning, disinfecting and lubricating a dental handpiece

Technical Field

The present invention relates to two types of bench-top devices, in a first simple embodiment, for lubrication and in a second, more complex embodiment, for cleaning, disinfecting and lubricating a dental handpiece (handdie). In particular, such a device is provided with innovative solutions that considerably improve the suitability of the operator for cleaning and disinfecting a dental handpiece for a patient.

Background

In the art, different kinds of rotary or vibratory handpieces are known, which may be mounted on known dental treatment units or on known separate table units:

-a vortex (turbine) (rotary head);

-a dihedral (rotary head);

dental scalers, mainly of the piezoelectric type (vibrating handpiece).

It is worth mentioning that the vibrating head does not require lubrication.

The rotary and vibratory handpieces have common features:

on such a head are mounted accessories (tips, needles, polishing cups, etc.);

-the handpiece is supplied with water and electric energy; in the case of a swirler, the head is supplied with water, electrical energy and air;

the handpiece is provided with an internal passage for the supply of water and optionally an internal passage for air, the internal cleaning of which cannot be ensured by autoclaving alone.

For connecting the handpiece to a dental treatment unit or a separate table device, a six-hole Midwest connection type of connection device of the plug and socket type is generally used, which is standard in the field.

The handpiece can be reused on multiple patients, and therefore the handpiece must be treated after use on a single patient to prevent the transmission of infectious conditions from the patient to subsequent patients (cross-infection). In particular, the accessory is disposable or autoclaved, while the handpiece is autoclaved separately from the accessory of the handpiece.

All the following operations are performed by an operator. A typical workflow is:

a) Disconnecting the handpiece from the dental treatment unit or the stand-alone desktop device;

b) Removing the accessory from the respective handpiece;

c) Manually cleaning the exterior of the handpiece;

d) When needed, the interior of the machine head is cleaned and disinfected;

e) Lubricating the machine head;

f) Bagging the machine head;

g) The head is autoclaved.

In the art, for a long time, basically two devices for maintaining a dental handpiece have been known; the apparatus may perform steps d) and e) of the workflow:

a first, simpler device, which can lubricate only the head.

For example, the document of the known art is FR2340714 of Kaltenbach & Voigt published in 1977. This document describes a bench device for the maintenance of medical, in particular dental, instruments, which is provided with a mobile assembly attachment by means of which a maintenance handpiece is applied to the instrument, which is connected to a large-volume container containing a maintenance medium, for example oil, under pressure, and with a supply nozzle which can be opened and closed by means of a valve arranged in the maintenance handpiece.

A second, more complex device, which is able to lubricate and clean and disinfect the handpiece.

EP0056791A2 in Medical Engineering consulating Grifo, published for example in 1982, describes a cleaning device for cleaning dental instruments, in particular swirlers or the like, by means of liquid jets, a sterilizing medium and air, including a box-shaped container, a sterilizing device and air, which cleaning device comprises a chamber provided with an inlet opening which opens into the top wall of the container and through which the instrument to be cleaned is introduced into the interior of the chamber, the jet of compressed air and water being distributed through a directed nozzle, while other nozzles placed in the chamber downstream of the nozzle or in a separate chamber with an inlet opening deliver a mixture of air and sterilizing medium for drying the instrument.

The devices for lubrication (hereinafter referred to as L-devices for the sake of brevity) or for cleaning, disinfection, lubrication (hereinafter referred to as CDL devices for the sake of brevity) are usually bench-top devices provided with specific reservoirs for cleaning, disinfection and lubricating substances.

Another document of the known art is DE19913945A1 by Kaltenbach & Voigt, which describes a device in which a handpiece is connected to the device, the interior of which is closed by a cover, and in which a connector provided for the handpiece can be rotated. In particular, a first functional position is provided in which the handpiece is oriented downwards, and a second functional position in which the handpiece is rotated by an angle W1 of 45 ° to 90 ° with respect to the first functional position, so that the handpiece can be attached or removed more easily by the operator. The rotation is performed by an actuator connected to the lid, so that when the lid is opened, the connector is automatically in a position at the angle W1.

Another document of known technology is US4486174A1 to Kaltenbach & Voigt, which describes a device for supplying a cleaning and/or lubricating substance contained in a container under pressure (spray can) connected to a dental handpiece.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing two kinds of devices, be the L device in the first embodiment, be the CDL device in the second embodiment, the CDL device is provided with the suitability of improving to operating personnel.

This object is achieved by an apparatus having the features of the present invention. Advantageous embodiments and improvements are described in the present description.

The device of the utility model has two implementation modes:

a first simpler and less expensive embodiment L, which allows the lubrication of the rotating head (dihedral and vortexer) only;

a second more complex and expensive embodiment CDL, which enables the cleaning, disinfection and lubrication of the rotating and vibrating handpiece.

The L device and the CDL device are provided with three independent innovative features:

a) A mechanical block for connecting a head (rotary and/or rotary or oscillating) which can rotate about an axis parallel to the ground between two extreme positions, a first position of 0 ° and a second position forming an angle in the range 45 ° to 90 ° with respect to the first position. All connectors are rotated simultaneously through all intermediate positions between the 0 ° position and the 45 ° to 90 ° positions.

b) The housing of the spray can of lubricating substance is manufactured to accommodate spray cans with a standard 1 inch collar.

c) The CDL device is provided only with an accessory for the corner fitting, interposed between the Midwest connector of the corner fitting and the connector of the handpiece; the attachment allows the inner gear of the corner gear to rotate.

It is worth mentioning that cleaning and lubrication is only performed inside the handpiece, while both the inside and the outside of the handpiece are subjected to sterilization. Between the different steps of the process (cleaning, disinfecting, lubricating) there are provided purging steps by compressed air for emptying the interior of the handpiece or drying the exterior of the handpiece and preparing it for the subsequent steps.

A first advantage of the present invention relates to the rotation of the mechanical block used to couple the heads together. The rotation of the mechanical block between the two extreme positions allows a considerable increase in the adaptability to the operator who needs to insert the handpiece on the connector. This working step is facilitated by the fact that the mechanical block can take any angle between the two extreme positions.

A second advantage of the present invention is that due to the standardization of the lubricant spray can, a number of lubricants on the market can be used to lubricate the head. This results in two positive consequences. First, a particular lubricant substance specified by the handpiece manufacturer may be used. Typically, a handpiece manufacturer will provide a lubricant tank containing a specific formulation from handpiece to handpiece; typically, a manufacturer binds warranties to lubricants produced using the same company. Second, since the CEFLA equipment is exported around the world, the spray cans can be found locally without the CEFLA transporting special lubricants subject to compliance with combustible product regulations.

A third advantage for the CDL embodiment is provided only by the accessory for the corner reflector which rotates the internal gear of the corner reflector to allow a significantly improved distribution of the cleaning and sanitizing substance over the gear of the corner reflector, thereby improving the cleaning and sanitizing of the corner reflector.

Drawings

Further advantages and features of the invention are disclosed in the following description, wherein exemplary embodiments of the invention are explained in detail on the basis of the drawings:

FIG. 1: an isometric view of an L/CDL device, wherein the front guard is closed;

FIG. 2: an axonometric view of the L/CDL device, in which the front protection device is open and the handpiece is in a first extreme position;

FIG. 3: an axonometric view of the L/CDL device, wherein the front protection device is open and the handpiece is in the second extreme position;

FIG. 4: a front view of the Midwest connector;

FIG. 5 is a schematic view of: a list of exemplary adapters for different connections;

FIG. 6: an isometric view of the L/CDL device with the lid of the lubrication aerosol can open;

fig. 7A, 7B, and 7C: an enlarged view of the portion containing the spray can is shown in isometric view; a cross-section of a housing portion of the spray can; axonometric, front and top views of the assembled state and exploded views of the coupling details between the spray can and the connector;

FIG. 8: axonometric view of the carriage;

fig. 9A, 9B, and 9C: a side view, a longitudinal section and an exploded isometric view of an accessory for connecting a corner key;

FIG. 10: a hydrodynamic-pneumatic map for lubricating the device L;

FIG. 11: and the device CDL is subjected to cleaning, disinfection and lubrication by the aid of the hydraulic electropneumatic diagram.

Detailed Description

Fig. 1 shows an L-device 100/CDL-device 200. The L-device 100/CDL-device 200 comprises a body 1 and a front protection device 2, here in a closed position. The plant L100/plant CDL 200 also comprises an interface 8 for the operator, which is used to allow control of the plant and, in the case of the CDL plant 200, can be used to select the cycle to be performed (see below).

Fig. 2 and 3 show the device L100/device CDL 200 with the front protection device opened. These figures show that the front protection device, which is opened, allows access to the cavity 6 provided with a plurality of connectors 7, in particular four connectors 7, for connecting the handpiece to be lubricated and possibly to be cleaned and sterilized. In this figure, a scaler 5 for removing tartar, two swirlers 3 and one corner reflector 4 are shown.

It is worth noting that the connectors 7 are all identical and allow connection with any type of rotary or oscillating handpiece.

Said connector 7 can be rotated upwards and downwards about an axis parallel to the ground for facilitating the insertion of the

handpieces

3, 4, 5 onto said connector 7 by an operator. A comparison between fig. 2 and 3 shows the two extreme positions of the

handpieces

3, 4, 5:

a first position for coupling the handpiece, as shown in figure 2;

a second operating position for lubricating and possibly cleaning and sterilizing the handpiece, as shown in figure 3.

Of course, the cleaning, sanitizing and lubricating operations occur in the case of a previously closed protection, as shown in fig. 1.

The angle between the first and second extreme positions of the connector 7 for the handpiece is in the range 45 ° to 90 °; in a preferred embodiment, the angle is 52 °. The allowed positions are both said extreme positions and all positions in between said extreme positions in a continuous manner.

Each connector 7 for the

head

3, 4, 5 is arranged on a cylinder which rotates about its longitudinal axis, which is parallel to the ground. The connectors are simultaneously rotated.

Fig. 4 shows a front view of the screw Midwest connector 40. The Midwest connector is known in the art and is a standard for dentistry (UNI EN 29168). The Midwest connector is provided with:

a connector 41 for draining water;

connectors 42 for cooling air (chip air);

a connector 43 for cooling water;

a connector 44 for motive air (motive air);

a connector 45 for electrical contact;

connectors 45 for electrical contact.

The Midwest connector is the predominant type of screw connection used in dentistry. The

dental handpieces

3, 4, 5 may be provided with different coupling connectors, wherein the channels for air, water and electricity are arranged in different ways; thus, the device L100/device CDL 200 is provided with a dedicated adapter which allows lubrication and can be cleaned and sterilized, even for handpieces provided with other types of connection means.

Fig. 5 shows an exemplary list of commercial adapters 50 to be inserted between the Midwest connector 7 of the device L100/CDL 200 and the connectors of the

individual handpieces

3, 4, 5. The commercial adapter is not part of the present invention and will not be described in detail. This list is shown only to recall that the connectors for the dental handpiece are various. Typically, handpiece manufacturers (e.g., kaVo, siroa, W & H, NSK, bien Air, satelec, EMS, etc.) provide proprietary connectors that are provided on all of the handpieces produced by the manufacturers. It is worth mentioning that all vibrating handpieces require a dedicated adapter 50 to be inserted into the Midwest connector 7.

Fig. 6 shows device L100/device CDL 200 with lateral cover 60 opened. The opening of said lateral cover 60 allows access to the lateral cavity in which the lubricant spray can 61 is housed and, only in the CDL embodiment, also the reservoirs for the cleaning and sanitizing substances (see below).

As shown, the spray can 61 is provided with a common tubular stem 62 for controlling the supply valve, but is not provided with a common nozzle (actuator) allowing manual spraying of the contents. The spray can nozzle (not shown) is removable without tools. As mentioned above, one of the features of the present invention that improves the applicability is that the

apparatus

100, 200 as described above can be used to lubricate handpieces produced by any manufacturer. In this way, the end user can use any lubricant spray can that can be provided with a standard 1 inch collar 63.

Typically, the aerosol can is provided with said collar 63, the collar 63 being the sealing connecting rim of the can lid which is sealingly connected to the supply valve of the can. Typically, these valves are normally closed and may only be opened temporarily by pressure on the tubular stem 62 towards the interior of the spray can. When the pressure on the tubular stem is released, the passage of the valve is automatically closed. It is not necessary to delve into the details of the valve, as this is not an object of the present invention. However, the collar 63 is part of the construction of the spray can and is part of the combination of features of the invention.

Due to the dedicated clamp 70 for the aerosol canister 61, in particular for the collar 63, provided inside said body 1 of the

device

100, 200, a standard aerosol canister provided with a1 inch collar 63 can be used.

Fig. 7 shows a clamp 70 for the lubricant spray can 61 in the body 1 of the

device

100, 200. In particular, fig. 7A is an enlarged view of fig. 6 and shows an axonometric view of the body 1, while fig. 7B is a cross section of the

device

100, 200. Fig. 7C shows different isometric, front and top views of the coupling between the spray can 61 and its holder 70 in an assembled and disassembled state for elucidating the mutual positions and functions.

Fig. 7A shows the location of the clamp 70, the clamp 70 receiving the 1 inch collar 63 of the lubrication spray canister 61. This connection is basically achieved by the L-shaped clamp 70 being provided with two

branches

170, 270. The branch 170 is oriented perpendicular to the longitudinal axis of the spray can 61 and the branch 270 is oriented parallel to the longitudinal axis of the spray can. A slot 370, 470 (better seen in fig. 7C) is obtained in said clamp 70 and extends over the two

branches

170 and 270, and there is no interruption between the two

portions

370, 470 respectively provided on one of the two

branches

170, 270. The branch 270 is parallel to the axis of the aerosol can and is arranged in particular in a vertical position, for example in the embodiment shown, and is fixed to the body 1 of the

device

100, 200. The portion 370 of the groove obtained in the branch 170 corresponds to the shape of the top head of the spray can 61, and in particular to the shape of the collar 63 and of the stem 62 taken along a diametral section plane and parallel to the axis of the spray can 61. The portion 470 of the groove connects without interruption with the portion 370 on the transverse branch 170 of said clip 70, the portion 370 on the transverse branch 170 of said clip 70 being in particular parallel to the axis of the aerosol can and U-shaped, the distance of the two U-shaped branches of the U being equal to the width of the portion 470 of the groove on the branch 270 and coinciding with the collar 63 of the aerosol can. The closed and arcuate part of the U-shape is substantially closed by a semi-circle, corresponding to the radius of curvature of said collar 63 of the spray can. It should be noted that the size and radius of curvature are obviously commensurate with the shape of the top head of the spray can and in particular the shape of the collar 63 and stem 62, to the extent that the collar 63 and stem 62 are slightly larger within the extent necessary to allow the spray can 61 to be freely inserted into the L-shaped clip 70 through the

portions

370 and 470 of the slot. The portion 470 of the slot on the vertical branch 270 serves to allow the aerosol canister 61 to be introduced into the portion 370 of the slot in the branch 170 of the clip by simply translating the aerosol canister in a direction perpendicular to the axis of the aerosol canister. The portion 370 of the groove arranged in the horizontal branch 170 of the clip 70 receives said collar 63 of the spray can 61, said collar 63 overlying the tapered portion 65 of the spray can head to act as a top retainer.

The collar 63 is slightly larger than the cavity of the slot 70; gravity holds the spray can 61 when the collar 63 is inserted into the groove 70. When the collar 63 is placed, the stem 62 protrudes above the slot without a nozzle, contacting the actuator 62.

Above said stem 62 of the spray can 61 is arranged an actuator 72 (fig. 7B), which actuator 72 pushes said stem 63 by the push of compressed air from an electronic valve controlled by an electronic board, causing the lubricating substance to come out of said spray can 61; the lubricating substance is then led through the hole 71 into the duct of the hole.

Fig. 8 shows the device CDL 200 provided with the carriage 80, the carriage 80 being in the extracted position. The carriage 80 is provided with two slots that hold two

reservoirs

81, 82 provided for cleaning and sanitizing substances, respectively. Each

reservoir

81, 82 is provided with a

pressure cap

83, 84. The interior of the

reservoirs

81, 82 can be refilled directly using a container 85 in which the product is sold stored.

The shelves 80 slide and are extracted from the device CDL 200 in order to be refilled with product when said device 200 is not in use. The carriage 80 can be seen to slide laterally relative to the spray can 61.

Fig. 9 shows a special adapter 90 for the corner fitting 4, which special adapter 90 is conceptually similar to the adapter 50 shown in fig. 5. In particular, fig. 9A shows the adapter 90 in a side view, fig. 9B shows the adapter 90 in a longitudinal section taken according to the plane AA shown in fig. 4, and fig. 9C shows the adapter in an axially exploded view.

The adaptor 90 is provided in a cylindrical shape; at a first end of the cylindrical shape a connector 91 for a corner key is provided, while at a second end of the cylindrical shape a Midwest connector is provided to allow connecting the adaptor 90 to any connector 7 for a handpiece. Fig. 9C shows the inner parts of the adapter, which comprise a shaft 93, a spring 95 and a part 94 that can be moved in the axial direction.

Only in the embodiment of the CDL 200, the interior of the

handpieces

3, 4, 5 is first subjected to cleaning and sterilization, and then to lubrication (for only rotating the handpieces); firstly the cleaning agent is made to flow out of the reservoir 81 and circulate in the internal channels of the handpiece, and secondly the disinfectant is made to flow out of the reservoir 82 of this disinfectant.

In the case of a vibrating handpiece which is not lubricated, when the control for providing lubricant is activated, the lubricant reaches all the connectors 7 for the handpiece, the lubricant being drained and entering the cavity 6 due to the presence of the holes in the adapter 50 which allow the connection between the vibrating handpiece and said connectors 7.

In order to ensure that all cavities (lumens) of the passage of the corner tool 4 are wetted by the cleaning and disinfecting agent, the internal gear of the corner tool must be rotated. The function is performed by the adapter 90.

The cleaning or sanitizing agent flowing out of the

respective reservoirs

81, 82 of cleaning or sanitizing agent is forced into the adapter 90 together with the compressed air; in particular, the cleaning/sanitizing agent mixed with the compressed air enters from the connector 42 of the Midwest connector and passes through the cavity formed by the fireplace wall of the shaft 93 and the body of the adaptor 90. The compressed air pushes the mobile part 94 forward, which mobile part 94 in turn rotates the shaft 93 due to the constraint of a radial pin (not shown) fixed to the shaft 93, which engages in a helical groove 194 of the mobile part 94. The active portion 94 is guided to be dragged forward along the connector 91 towards the corner fitting for a travel of about 15 mm. The axial movement of the mobile part 94 determines about one rotation of the shaft 93, thanks to the helical groove 194 and the radial pin of the shaft 93 engaged in the helical groove 194. When the supply of the compressed air is stopped, the spring 95 determines that the shaft 93 moves backward about one turn in the opposite direction. This double rotation determines a better distribution of the cleaning/sanitizing agent on the counter-angle gear.

Fig. 10 shows a hydrodynamic view of the device L100. The device L100 must be connected to an external compressed air source (inlet air) operating at 4 to 6 bar; the compressed air is stabilized at a pressure of 4bar by a pressure regulator 101, which pressure regulator 101 is also used for a filter of the compressed air. Downstream of the pressure regulator, the compressed air is subdivided into two

branches

102, 103, the first 103 of which carries the compressed air directly to the handpiece for purging, while the second 102 passes through a cylinder 104 to activate the actuator 72 and the lubricant spray can 61. The path also includes an oil sensor 121 and a pressure sensor 122.

A first set of electronic valves 107 for each handpiece controls the air for the injection channel, while a second set of electronic valves 108 for each handpiece controls the main air line for the handpiece.

By appropriately opening and closing said electrovalves 105, 106, 107, 108, lubricant can be supplied to the handpieces 3 inserted on the connector 7, lubricating them one at a time in sequence. For simplicity, four vortexers 3 are shown, but it will be appreciated that any type of rotary head may be provided. The lubricant passes through the rotating head 3, exits the head of the head and drains into the chamber 6.

Fig. 11 shows a hydrodynamic map of the device CDL 200; for simplicity, four swirlers 3 are also shown in this figure, it being understood that any type of rotating or oscillating head may be provided. With respect to lubrication, the CDL device 200 operates in the same manner as the L device 100 described above.

With regard to the supply of cleaning and disinfecting agents inside the handpiece, it works in a manner similar to the supply of lubricant, even if the supply is due to a pair of

pumps

203, 204. In this case, the cleaning and sanitizing agents are also supplied one at a time sequentially through the adapter 202 in a mutually exclusive manner for each handpiece. Before supplying each head 3 with detergent/disinfectant, the detergent/disinfectant is supplied through three nozzles 205 arranged inside the chamber 6, while compressed air is supplied by two nozzles 207 arranged in said chamber 6. The compressed air, which is used to create a swirling motion of the disinfectant, is distributed in this way over the outer surface of the handpiece 3. An electronic valve 206 is used to regulate the air flow to the nozzle 207. The nozzle 205 is a dedicated nozzle. An electronic valve 208 is used to regulate the air flow to the

nozzles

205, 207.

The dispenser 202 alternately mixes compressed air from the outside with lubricant from the spray can 61, detergent from the reservoir 81 or disinfectant from the reservoir 82.

As described, in the case of a vibrating handpiece, the lubricant is discharged through a dedicated hole (not shown) of the adapter 50 and into the cavity 6.

A typical cycle of the device L100 comprises the following steps:

a) After manually cleaning the exterior of the handpiece, the

handpiece

3, 4 is inserted by the operator onto the connector 7; the operator inserts the adapter 50 as needed;

b) The front protection device 2 is closed by the operator;

c) Purging an internal channel of the machine head by compressed air;

d) Lubricating an air passage that brings air to a rotating member of a handpiece;

e) Purging all internal passages of the handpiece to remove excess lubricant;

f) The operator opens the front protection 2 and removes the lubricated

head

3, 4.

Typically, the CDL device 200 is pre-programmed and allows different lubrication, cleaning and sterilization cycles to be performed as needed. Specifically, the CDL apparatus 200 allows selection among four different pre-programmed cycles:

1. blowing, cleaning, blowing, sterilizing, blowing, lubricating and blowing

2. Blowing-cleaning-blowing

3. Blowing-lubricating-blowing

4. Purging

Cycle 1 is the most complex cycle provided on the plant CDL 200, which cycle 1 comprises the following steps:

a) After manually cleaning the exterior of the

head

3, 4, 5, the

head

3, 4, 5 is inserted onto the connector 7 by the operator; the operator inserts the

adapter

50 or 90 as desired;

a) The front protection device 2 is closed by an operator;

b) The operator selects the desired pre-programmed cycle via the interface 8;

c) Purging an internal channel of the machine head by compressed air;

d) Cleaning the outer surfaces of the

head

3, 4, 5 by supplying a cleaning agent;

e) Cleaning the internal passages of the

head

3, 4, 5 by supplying a cleaning agent;

f) Allowing the detergent to act for a time indicated by the manufacturer of the detergent;

g) Purging an internal channel of the machine head by compressed air;

h) The outer surface of the handpiece is sterilized by spraying a sterilizing agent on the handpiece surface inside said cavity 6;

i) Sterilizing the internal channels of the

handpieces

3, 4, 5 by supplying a disinfectant;

j) Allowing the disinfectant to act for a time dictated by the manufacturer of the disinfectant;

k) Purging an internal channel of the machine head by compressed air;

l) supplying compressed air outside the

handpiece

3, 4, 5 to remove the disinfectant;

m) lubricating the air channels that bring air to the rotating parts of the

head

3, 4;

n) purging all internal passages to remove excess lubricant;

o) the operator opens the front protection 2 and removes the lubricated

head

3, 4, 5.

In order to safeguard the health of the patient, dental offices are provided with a quality system that provides a record of the treatment performed by a reusable device, such as a dental handpiece. Therefore, known treatment devices are provided with an internal memory allowing to record the executed cycles. Information about the cycle may be downloaded to a USB stick, which may be connected to device L100/device CDL 200.

1. Device body 90 reverse angle adapter

2. Front protection device 91 reverse angle connector

3. Vortex 92 Midwest connector

4. Angle reflecting device 93 shaft

5. Axial moving part of tooth cleaner 94

6. Chamber 95 spring

7. Connector 100L-shaped device

8. Operator interface 101 pressure regulator

40 Midwest connector 102 lubricant branch

41. Discharge connector 103 compressed air branch

42. Air spray connector 104 cartridge

43. Cooling water connector 105 electronic valve

44. Power air connector 106 electronic valve

45. Electrical connector 121 oil sensor

46. Electrical connector 122 pressure sensor

50. Adapter 170 horizontal branch

60. Lateral cover 194 spiral recess

61. Lubricant spraying tank 200 CDL device

62. Third branch of rod 201

63. Collar 202 dispenser

65. Conical part 203 pump of spray can

70. Lantern ring groove 204 pump

71. Lubricant bore 205 nozzle

72. Actuator 206 electronic valve

80. Sliding rack 207 nozzle

81. Cleanser reservoir 208 electronic valve

82. Disinfectant reservoir 270 is vertically branched

83. Horizontal trough of detergent cover 370

84. Disinfectant cover 470 vertical trough

85. The original container.

Claims

1. A bench device for lubricating or cleaning, disinfecting and lubricating a dental handpiece, comprising a connector (7) for the dental handpiece, the connector (7) being located in an openable cavity (6), the connector (7) being arranged on a barrel in the cavity (6), the longitudinal axis of the barrel being parallel to the ground,

it is characterized in that the preparation method is characterized in that,

the connector (7) rotates between the following two extreme positions through all intermediate positions between the two extreme positions:

-in a first extreme position, the dental handpiece is approximately perpendicular to the ground;

-in a second extreme position the dental handpiece is brought to an angle in the range of 45 ° to 90 ° relative to the first extreme position.

2. A desktop device according to claim 1 wherein the angle between the first and second extreme positions is 52 °.

3. A table device according to claim 1 or 2, characterised in that the connector (7) is provided with a Midwest connector (40) for inserting the dental handpiece onto the connector.

4. A bench-top device according to claim 1 or 2, characterised in that an adapter is interposed between the dental handpiece and the connector (7) in case the dental handpiece is not provided with a Midwest connector.

5. A bench-top apparatus according to claim 1, characterised in that the rotary dental handpiece is selected from a swirler (3) and an angle deflector (4) and the oscillating dental handpiece is a calculus scaler.

6. A desktop device according to claim 1 wherein the path of the desktop device comprises:

-a compressed air inlet;

-a pressure regulator (101);

-a first branch (103), said first branch (103) being provided with a first electrovalve (106), said first electrovalve (106) being directly connected to said connector (7) for a dental handpiece;

-a second branch (102), the second branch (102) being provided with a second electrovalve (105), the second electrovalve (105) being connected to the connector (7) for a dental handpiece through a hole (71) for supplying a lubricant contained in a spray can (61);

wherein the opening/closing of the first electronic valve (106) and the second electronic valve (105) alternately supplies compressed air alone or mixed with a lubricant to the dental handpiece; the lubricant passes through the dental handpiece to be eventually discharged into the cavity (6).

7. A desktop device according to claim 1 or 2, comprising a USB slot for connection to a USB stick arranged for downloading data related to lubrication cycles performed on the dental handpiece or cleaning, disinfection and lubrication cycles performed.

8. A bench-top device according to claim 4, characterised in that in case the bench-top device is used for cleaning, disinfecting and lubricating a dental handpiece, the hole provided in the adapter discharges the lubricant directly into the cavity (6) without passing through the vibrating dental handpiece.

9. The desktop device of claim 6 wherein, in the case where the desktop device is used for cleaning, disinfecting, and lubricating a dental handpiece, the path further comprises:

-a further branch (201), the further branch (201) being provided with a third electrovalve (206), the third electrovalve (206) being connected to a dedicated first nozzle (205);

-a disinfectant reservoir (82) actuated by a first pump (204);

-a detergent reservoir (81) actuated by a second pump (203);

wherein the opening/closing of the first electronic valve (106), the second electronic valve (105) and the third electronic valve (206) alternately supplies the dental handpiece with lubricant, detergent, disinfectant taken from the respective reservoirs of the first electronic valve (106), the second electronic valve (105) and the third electronic valve (206).

10. A bench device according to claim 9, characterized in that, in case the bench device is used for cleaning, disinfecting and lubricating a dental handpiece, the path further comprises a first nozzle (205) and a second nozzle (207), the first nozzle (205) being arranged in the cavity (6) for supplying a cleaning/disinfecting agent to the outside of the dental handpiece, the second nozzle (207) also being arranged in the cavity (6) for supplying compressed air into the cavity (6) for generating a swirling motion of the cleaning/disinfecting agent.