DE102020122882B4 - Device for discharging aerosols - Google Patents

Abstract

Device (11) for removing aerosols,■ the device (11) having at least one holder (6) for arranging the device (11) on the head (K) of a patient and at least one media line (12) connected to the holder (6) which is connected in fluid communication with a suction device,■ wherein at least one section (7) of the at least one media line (12) extends away from the holder (6) to an end piece (8) of the at least one media line (12), and■ the end piece (8) having at least one discharge opening (14) for discharging aerosols, characterized in that the holder (6) at least partially overlaps or encompasses the patient's head (K) or a part of the patient's head (K). ,■ wherein the holder (6) is or forms part or a section of headphones (30), hearing protection or an elastic band,■ that the at least one media line (12) has at least one fastening element (40) is attached to the holder (6), and■ the end piece (8) forms a free end of the at least one media line (12),■ an attachment (18) being detachably connected or connectable to the section (7).

Description

The invention relates to a device for discharging aerosols, the device having at least one holder for arranging the device on a head and at least one media line which is connected to the holder and which is connected in fluid communication to a suction device.

When using, for example, high-frequency drilling tools, aerosols can arise, typically when the high-frequency drilling tools are cooled with the media water and/or air. These drilling tools can be used for medical or dental purposes, for example for operations and/or for prophylactic treatments.

Special devices are already known for discharging aerosols. These are used for medical and dental purposes, for example for removing mixtures of air, water, bacteria and viruses. The aerosol is removed, for example, via a suction device that includes a suction line and a flow-optimized attachment with which the aerosols are sucked into the suction line.

A suction device is also known specifically in the field of dentistry, which is used in dental operations or treatments on the patient in order to discharge aerosols from the patient's mouth. This device comprises a U-shaped bracket which is provided with suction openings in a section surrounding the jaw and mouth area of the patient and which is connected to a suction line via a suction line connection. A flow is generated via the suction line connection and the suction openings, which entrains aerosols and flows through the suction openings into the bracket.

The problem here is that the suction device is attached rigidly to the patient's jaw and cheekbones. The device also limits the view and activity of the doctor treating him, because both the U-shaped bracket and the suction line connected to it are often a nuisance. In particular, this restricts the field of activity of the doctor. Due to the positioning of the bracket on the patient's cheekbones, it can lead to headaches or injuries during longer treatments. Furthermore, flow noises and vibrations occurring during operation are perceived by the patient as very unpleasant, with the transmission of the noises and vibrations being further intensified by the positioning of the bracket on the cheekbones. In extreme cases, the flow noise can lead to hearing damage or anxiety.

Next is over WO 94/02190 A1 a system for the controlled evacuation of breathing air, with a mask body and a holding device for holding the mask body in front of the mouth and/or nose area of a user, in which the edge of the mask body is at a distance from the mouth and/or nose area of the user, at least in some areas has and in which an air line for the controlled supply of outside air or suction of breathing air opens in the mask body.

Out WO 96/06651 A1 discloses a system for extracting and collecting medical gases, vapors, mists and particulates from near a patient's face. Two inlets are located on the respective sides of the patient's face on the cheeks. The inlets reach from the temple to the chin. They are connected by a piping system to a vacuum source for collecting the medicinal gases. The piping system is designed to allow adjustment of the inlet positions. The inlets create a flow of air across the patient's face from above the nose to below the mouth, allowing gases escaping or exhaled by the patient during administration of gases and low velocity vapours, mists or particles used in orthodontic procedures, for example Procedures are created in which flow is trapped across the patient's face into the inlets. This leaves the patient's mouth and nose fully exposed and unobstructed by the gas evacuation device so that gas administration, dental procedures and any other procedure requiring access to the mouth and nose can be performed.

U.S. 2020/0129709 A1 describes a portable inspiration synchronous ultrasonic nebulizer humidifier device. The nebulizer logic coupled to the headset is electrically connected to the nebulizer and controls the oscillation of the nebulizer crystal and the breathing signal. The nebulizer body is rigidly connected to the distal end of the flexible tubing to allow liquid to flow from the liquid reservoir ampoule to the nebulizer body, which contains a piezoelectric crystal with electrical coupling to the nebulizer control logic, liquid chamber, nozzle and aerosol nozzle for inspiratory-expiratory spray wearing a wearable Humidifier nebulizer device to adjust nostril aerosol for synchronous inhalation, nozzle position and spray angle.

Out DE 601 29 459 T2 discloses an oxygen diffuser for a lightweight oxygen delivery system for a patient, the oxygen delivery system being of the type comprising a mount for seated surgery on a patient's head or ear, an elongate tubular oxygen delivery boom attached at one end to the mount, wherein the diffuser is attached at the other end, the diffuser directing oxygen through the boom to a space proximate the patient's nose and mouth, the diffuser comprising a body having a wall, the inner surface of which has a generally concave configuration, circumscribing a centrally positioned oxygen outlet for directing the flow of oxygen from the outlet generally toward the patient's nose and mouth; and an orifice that sits over the oxygen outlet to help mix oxygen with ambient air and avoid direct flow of oxygen to the patient's face.

The object of the invention is to avoid these and other disadvantages of the prior art and to create a device for discharging aerosols, which reduces the impairments and injuries to the patient and which, with simple handling by the doctor or the doctor's assistant, does not go beyond the field of activity of the treating doctor restricts. The device should also ensure that the doctor has a permanently clear view of the area to be operated on or treated.

Main features of the invention are set out in the characterizing part of claim 1. Configurations are the subject of claims 2 to 10.

In a device for discharging aerosols, the device having at least one holder for arranging the device on a patient's head and at least one media line which is connected to the holder and which is connected to a suction device in fluid communication, the invention provides that at least a section of the at least one media line extends away from the holder to an end piece of the at least one media line, the end piece having at least one discharge opening for discharging aerosols.

The design of a section of the at least one media line that extends away from the holder as an end piece with at least one discharge opening for the aerosol enables a simple and ergonomic arrangement and routing of the media line relative to the head of the patient to be treated, so that the field of activity of an attending physician or a medical assistant is not restricted in the area of the patient's head. Rather, the end piece can be aligned independently of the media line to where the aerosol has to be sucked out (in the case of a dental treatment, for example in the patient's mouth), while the media line is no longer a problem. Consequently, the device ensures that the doctor has a permanently clear view of the area to be operated on or treated.

At the same time, the device according to the invention ensures that impairments and injuries to the patient are reduced, in particular when the holder is designed to be placed on the head. This avoids injuries or impairments to the patient because, compared to the devices known from the prior art, a larger area on the head can be used, so that the holder exerts less pressure on the patient's skin.

According to the invention, the section and/or the end piece of the device form a free end of the at least one media line. As a result, the suction in the patient area to be treated can be completely contact-free, which significantly reduces both the acoustic and the haptic impairments of the patient. Because there is no media line in these sections with the end pieces, the treatment team is restricted as little as possible in their treatment environment. Any visual obstruction caused by the device and its holder on the area to be operated on on the patient, where the aerosols are produced, is reduced or completely avoided.

The invention further provides that the at least one section of the at least one media line has a plastically deformable tube element or hose element for positioning the end piece and the at least one discharge opening.

This makes it possible to position the discharge opening in almost any way and always optimally in relation to the patient. If, for example, aerosols form in the vicinity of the patient's mouth, the discharge opening can be arranged at the mouth opening by means of the plastically deformable tubular element in such a way that a doctor has a clear view and free access to the mouth opening. At the same time, the aerosols produced during the treatment are always optimally extracted.

The plastically deformable pipe element or hose element can be, for example, a flexible pipe or hose, for example made of metal or plastic, with the pipe or hose element retaining its shape after a change in shape.

The end piece advantageously has an attachment on or in which the at least one discharge opening is formed. The aerosols produced during or as a result of the treatment are thus reliably extracted at the point of origin.

Furthermore, according to the invention, the attachment is detachably connected or can be connected to the flexible or plastically adjustable section, preferably to the free end of the section. The attachment can thus be removed from the end piece and cleaned, in particular disinfected, for example after the treatment. This further simplifies the handling of the device because the entire device does not have to be cleaned after each use.

Furthermore, the attachment and/or the discharge openings are designed to be flow-optimized, which further increases the efficiency of the suction. In particular, the suction pressure generated with the suction device can generate a flow on the attachment that has the greatest possible speed. This causes the largest possible number of aerosols to be removed from the area to be operated on or treated.

According to the invention, the holder further overlaps or encompasses the patient's head or a part of the patient's head at least in sections, the holder ideally being ergonomically adaptable at least in sections to the patient's head.

Due to the ergonomic adaptation of the device or the holder, the latter can be individually adapted to a patient's head in an optimized manner. Adaptation to the patient is optimized when the pressure on the individual parts of the patient's head is as low as possible. The probability of possible injuries to the patient's head is thus further reduced.

• Mittels der Kopfbedeckung bzw. dem elastischen Band kann eine Halterung der Vorrichtung am Kopf des Patienten mit erhöhter Effektivität erfolgen. Mit Kopfhörern oder einem Gehörschutz kann der Patient zudem vor den Geräuschen der hochfrequenten Bohrwerkzeuge oder dem Absaugungslärm geschützt werden. Bei der Verwendung einer Brille kann ein Augenschutz bereitgestellt werden, der die Augen des Patienten vor gegebenenfalls umherfliegenden größeren Teilen des gebohrten Materials schützen. Weiter werden damit die Strömungsgeräusche reduziert, weil diese durch die Halterung und das berührungslose Endstück nicht direkt über Schädelknochen des Patienten an das Gehör übertragen werden.

According to the invention, the holder is or forms part or a section of headgear, headphones, hearing protection, an elastic band, preferably an elastomer band, glasses or the like, whereby the impairment of the patient can be kept to a minimum. There are also additional functions and advantages:

• The headgear or the elastic band can be used to mount the device on the patient's head with increased effectiveness. With headphones or hearing protection, the patient can also be protected from the noise of the high-frequency drilling tools or the extraction noise. If goggles are used, eye protection can be provided to protect the patient's eyes from potentially flying debris of the drilled material. This also reduces the flow noise because the holder and the non-contact end piece do not transmit it directly to the patient's hearing via the skull bones.

A further development of the invention provides that the holder is part of a headphone, which has two ear cups and a holding bracket connecting the ear cups. In this way, the device can be manufactured extremely inexpensively and easily. In particular, commercially available headphones can be used, for example, which further reduces the manufacturing costs. The auricles serve as noise protection or suitable music is played to the patient. Hearing protection can also be used instead of headphones.

Structurally, it is favorable if the holder is formed by one of the ear cups or by both ear cups or the headband of the headphones or hearing protection
the at least one media line is fastened to the holder with at least one fastening element according to the invention.

This prevents the media line from accidentally getting into the area to be operated on or treated. The connection to the bracket causes the media line to be fixed to the bracket. Furthermore, the connection can, for example, be designed to be sound-damping in order to avoid transmission of flow noise and vibrations to the cranial bones.

The at least one fastening element can advantageously be a clamp which fixes the associated media line.

In order to further improve the adaptability and the handling of the device, the invention further provides that the fastening element is designed in the manner of an articulated joint or a hinge.

Furthermore, the device can have, for example, at least two media lines, each of which extends away from the holder to an end piece of the respective media line.

This means that the aerosols can be discharged even more effectively. Furthermore, in this case, the aerosols are discharged at at least two different positions, so that a larger area in the vicinity of the area on the patient to be operated on or treated can be freed from aerosols.

The at least two media lines are advantageously arranged on the holder, for example, in such a way that they are arranged on different sides of the patient's head when the holder is placed on a patient's head.

This can further maximize the area from which aerosols are discharged. The media lines can, for example, be attached to the area to be extracted, e.g. B. an oral cavity, are introduced. One media line can be arranged on the left of the patient's head and the other media line on the right of the patient's head, so that end pieces with discharge openings for discharging the aerosols are positioned on both sides of the area to be aspirated.

Furthermore, the at least two media lines can, for example, open into a common line, the common line being connected in fluid communication with a suction device. This further simplifies the suction by means of several media lines because only one central suction device has to be provided. This also has a positive effect on the manufacturing and operating costs.

A further important development of the invention provides that the at least two media lines open into the common line in a region facing away from the end piece(s). This ensures that neither the media lines nor the common line (suction line) affect or restrict the treatment area. Rather, the device provides one or two end pieces which extend in the direction of the treatment area and whose discharge openings can be positioned individually due to the plastically deformable design of the tube or hose elements. The treatment team has maximum freedom of movement with optimal suction.

This also contributes if the at least two media lines open into the common line in the area of the headphone headband.

Furthermore, for example, a T-piece and/or a Y-piece can connect the at least two media lines to the common line.

Furthermore, at least one flow acceleration device can be arranged between the at least one media line and the suction device.

With the flow acceleration device, the flow of the aerosols in the media line to the suction device can be accelerated in order to avoid a drop in flow. Furthermore, the suction effect at the discharge opening can be increased in this way.

For this purpose, the at least one flow acceleration device can have at least one impeller, for example.

There can also be several impellers. The impellers transport and accelerate the aerosols in the direction of the suction device. You can continue if you z. B. in the event of a power failure, how valves or flow resistances act, since a backflow can be reduced or completely avoided by the blades projecting into the flow.

• 1 eine Ausführungsform der Vorrichtung gemäß der Erfindung und
• 2 eine abgewandelte Ausführungsform der erfindungsgemäßen Vorrichtung in einer Seitenansicht.

Further features, details and advantages of the invention result from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

• 1 an embodiment of the device according to the invention and
• 2 a modified embodiment of the device according to the invention in a side view.

The device for discharging aerosols is referenced in its entirety with the reference number 11 .

According to 1 the device 11 includes a holder 6 and two media lines 12. However, this does not preclude the device 11 from being able to have only one media line 12 or other media lines 12. The device 11 is arranged on a human head K of a patient to be treated.

In this exemplary embodiment, the holder 6 is a headphone 30, which can also act as hearing protection. The headphones have two auricles 31, 32 and a retaining bracket which connects the auricles 31, 32 and is preferably designed to be adjustable. Alternatively or additionally, the holder 6 can be a hat, an elastic band, preferably an elastomer band, and/or glasses (not shown). All of the aforementioned exemplary embodiments of the holder 6 can be ergonomically adapted to the head K.

Hearing protection can also serve to protect the patient from external noise pollution, such as high-frequency drilling tools or extraction noise.

One of the media lines 12 extends to one side of the head K, the other of the both media lines 12 extends to another side of the head K. Furthermore, the media line 12 is connected to the holder 6 with a fastening element 40 at least at one point of the headphones 30 , preferably on an earpiece 31 , 32 and/or on the retaining bracket 35 . The fastening element 40 can, for example, be a housing-like component or—preferably—a clamping bracket that is fixed to the headphones 30 . Moreover, the fastening element 40 can be articulated or hinge-like in order to increase the freedom of movement of the media line 12 and to further simplify the handling of the device 11 . If required, the fastening element 40 can additionally be designed to be vibration-damping and/or sound-insulating. Suction noise is thus not transmitted from the media line 12 to the patient's skull bones and thus not to his hearing.

At least a part 7 of the media line 12 extends away from the holder 6 and has a free end with an end piece 8 . The end piece 8 includes a preferably removable attachment 18. This attachment 18 is flow-optimized and includes at least one discharge opening 14. Flow-optimized is understood to mean that the attachment 18 has the lowest possible flow resistance. The at least one discharge opening 14 serves to receive aerosols and to transport them through the media lines 12 to the suction device. In this example, primarily aerosols generated in the vicinity of the oral cavity 9 are absorbed.

It can be seen that the section 7 and thus the end piece 8 form a free end of the at least one media line 12, so that the end piece 8 and thus the discharge openings 14 can be positioned almost freely without one of the media lines 12 lying in the area to be extracted.

The end piece 8 is therefore at a distance from the holder 6 and in this example can be positioned in the area of an oral cavity 9 on the patient's head K in order to suck off aerosols produced there in a targeted manner during the treatment.

The at least one section 7 of the media line is preferably a plastically deformable tubular element or hose element for positioning the at least one discharge opening 14. The plastically deformable element can be a hose, for example. This hose can be flexibly bent in all directions and retains its shape after bending. The discharge opening 14 can thus be positioned individually and independently of the holder 6 .

The two media lines 12 are connected to a common line 2 via a T or Y piece 3 . In this case, the common line 2 is connected to the T or Y-piece 3 at a first end region by means of a connection (not designated). The common line 2 is connected in fluid communication with a suction device (not shown) by means of a further connection (not designated) at its other end region.

In this way, both the media lines 12 on both sides of the head K and their discharge openings 14 in the end pieces 8 are connected to the suction device in a fluid-communicating manner. The sucked-in aerosols therefore flow from the discharge openings 14 through the media lines 12 and the common line 2 to the suction device.

A flow acceleration device 13 can be arranged between the device 11 and the suction device. The flow acceleration device 13 can have at least one paddle wheel, which accelerates the flow of the aerosols. This prevents the aerosols from stalling. Furthermore, the suction effect at the at least one discharge opening 14 can be increased.

In the event of a power failure, the impellers can act as a flow resistance and make it difficult or even prevent a backflow of the aerosols from the media line 12 .

The invention is not limited to one of the embodiments described above, but can be modified in many ways.

However, it will be appreciated that the invention provides a medical or industrial aerosol-discharging device that can be ergonomically adapted to a human's anatomy, particularly a patient's head.

The aerosol-discharging device is mounted or fixed on the human body, for example, by means of glasses, an elastomer band or preferably by means of headphones or a headphone-like hearing protection device.

The media lines that discharge the aerosol, in particular their end pieces with the discharge openings, can be flexibly adjusted to the anatomy of the respective patient, which means that the aerosols produced by the treatment are always optimally suctioned off without disturbing the treating doctor.

Reference List

K

head

2

common line

3

Y-piece or T-piece

6

bracket

7

section

8th

tail

9

oral cavity

11

Device for discharging aerosols

12

media line

13

flow acceleration device

14

discharge opening

18

essay

30

headphone

31

auricle

32

auricle

35

mounting bracket

40

fastener

Claims (10)

Device (11) for discharging aerosols, ■ the device (11) having at least one holder (6) for arranging the device (11) on the head (K) of a patient and at least one media line (12) connected to the holder (6) which is connected in fluid communication with a suction device, ■ wherein at least one section (7) of the at least one media line (12) extends away from the holder (6) to an end piece (8) of the at least one media line (12), and ■ the end piece (8) having at least one discharge opening (14) for discharging aerosols, characterized in that the holder (6) at least partially overlaps or encompasses the patient's head (K) or a part of the patient's head (K). , ■ wherein the holder (6) is or forms part or a section of a headphone (30), hearing protection or an elastic band, ■ that the at least one media line (12) with at least one fastening element t (40) is attached to the holder (6), and ■ that the end piece (8) forms a free end of the at least one media line (12), ■ wherein an attachment (18) is detachably connected or connectable to the section (7). is. device after claim 1 , characterized in that the at least one section (7) of the at least one media line (12) has a plastically deformable tubular element or hose element for positioning the end piece (8) and the at least one discharge opening (14). Device according to one of Claims 1 until 2 , characterized in that the end piece (8) has or forms an attachment (18) on or in which the at least one discharge opening (14) is formed. device after claim 3 or 4 , characterized in that the attachment (18) and/or the discharge openings (14) are designed to be flow-optimized. device after claim 4 , characterized in that the at least one fastening element (40) is a clamp. device after claim 4 or 5 characterized in that the fastening element (40) is articulated or hinge-like. Device according to one of Claims 1 until 6 , characterized in that the device (11) has at least two media lines (12), which each extend away from the holder (6) to a respective end piece (8) of the respective media line (12). device after claim 7 , characterized in that the at least two media lines (12) are arranged on the mount (6) in such a way that they run on different sides of the head (K) when the mount (6) is placed on a patient's head (K). . device after claim 7 or 8th , characterized in that the at least two media lines (12) in a common line (2) open, wherein the common line (2) is fluidly connected to a suction device. device after claim 9 , characterized in that the at least two media lines (12) open into the common line (2) in a region facing away from the end piece(s) (8).

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