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EP4043078A1 - Bonnet médical non ventilé - Google Patents

Bonnet médical non ventilé Download PDF

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Publication number
EP4043078A1
EP4043078A1 EP21157205.2A EP21157205A EP4043078A1 EP 4043078 A1 EP4043078 A1 EP 4043078A1 EP 21157205 A EP21157205 A EP 21157205A EP 4043078 A1 EP4043078 A1 EP 4043078A1
Authority
EP
European Patent Office
Prior art keywords
hood
medical
visor
fleece
unventilated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21157205.2A
Other languages
German (de)
English (en)
Inventor
Stefan Stübinger
Nik Keel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tb-Safety AG
Original Assignee
Tb-Safety AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tb-Safety AG filed Critical Tb-Safety AG
Priority to EP21157205.2A priority Critical patent/EP4043078A1/fr
Publication of EP4043078A1 publication Critical patent/EP4043078A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/04—Hoods
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1153—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a hood
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1161—Means for fastening to the user's head
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1184—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with protection for the eyes, e.g. using shield or visor

Definitions

  • the present invention relates to a medical hood according to the preamble of claim 1.
  • FFP2 masks as mouth and nose protection already offer a certain amount of protection, but the increasing risk of infection due to various mutations requires more extensive protection. This is not limited to corona viruses. Other viruses or bacteria can also infect the body due to droplets through the eyes. Not least in the area of the nose, viruses and bacteria can penetrate.
  • a full-face mask is used with the US 4,296,746A presented.
  • This mask is made of a hard material and is inconvenient to put on and take off. It should be possible to quickly remove the mask, especially for interim meetings during an operation, while still keeping it on the body without the mask being a hindrance to the user.
  • a so-called ventilated breathing mask which completely covers the head and has an integrated visor, offers full protection against any infection. This is usually part of a full body protective suit.
  • Masks of this type ensure the survival of hospital staff in certain areas of application, in particular in the case of highly contagious diseases with a fatal course.
  • such masks are not necessary in many cases and also unwieldy to quickly remove the breathing mask from the mouth, e.g. to write a medical report and breathe normally without a respirator.
  • Ventilated masks can be easily recognized by a breathing air hose and, for example, from the CN 111296965A and from the EP 3 153 043 B1 known.
  • masks which completely enclose the head.
  • an exhaust air system must be provided because there is only a small space in which the exhaled air can spread. This can lead to sweating of the skin in the mouth area and fogging of the visor.
  • full head masks include the CN111035085 , the GB2444224A1 and the EP 3 600 569 A1 .
  • Masks are also known which are composed of several parts. Such a mask with removable visor is, inter alia, from SE534352C2 known. Here, special measures must be taken to seal the transition areas.
  • detachable strap-on visors made of a flexible plastic are known.
  • KR 102003183 B1 such a visor is revealed.
  • the rigidity of the material can only react to a limited extent to protruding areas of the face such as the nose, which the wearer finds uncomfortable.
  • the FR3016271B1 shows an unventilated medical hood, which adequately protects the head from viruses or bacteria.
  • the problem with this variant is on the one hand that the mask cannot be easily removed or handled, which has to be slipped completely over the head.
  • a goggle-side circumferential seal similar to ski goggles is provided, which can lead to the inside of the goggles fogging up.
  • the U.S. 2017/258151 discloses a visor for protection against water. There is no antiviral or antibacterial respiratory protection. In addition, with this variant there is a high risk of the visor fogging up from the inside.
  • the present application solves this problem by providing a medical hood with the features of claim 1.
  • a non-ventilated medical hood according to the invention has an outer material made of textile and/or fleece that at least partially covers a user's face and skull. Partially covering means that in a preferred embodiment part of the back of the head in the area of the hairline, the ears and possibly part of the neck are uncovered or exposed.
  • unventilated means that, unlike e.g. in the case of ventilated masks, no means are provided for additional mechanical ventilation of the hood, e.g. by a separate oxygen supply.
  • no supply air hose is provided for supplying oxygen and also no exhaust air hose is provided, as is usually used together with full-body suits in the case of highly fatal infectious diseases such as Ebola.
  • no gas filter cartridges are provided as in the case of gas masks.
  • the hood has a breathing protection fleece integrated into the hood to protect against microbes, in particular viruses and bacteria.
  • the breathing protection fleece is designed in such a way that it reliably filters out these particles from the air flowing in and out. Integrated means that the breathing protection fleece is firmly connected to the remaining components and segments of the hood.
  • the entirety of the visor and breathing protection fleece is framed by the outer material.
  • the breathing mask according to the invention offers more comprehensive protection, for example against deposits of droplets on the face.
  • the medical hood In contrast to the masks that fully surround the head, as are known from the prior art and in which flexibility must be guaranteed more in the neck area in order to slip the mask completely over the head, the medical hood is held or fixed elastically at the back of the head , so that the mask can be easily removed by gripping the back of the head.
  • Other holding elements such as e.g. straps, can remain closed so that the hood is still held on the neck, but the user can see and breathe freely without the protection of the respiratory protection fleece or visor, e.g. outside the medical field.
  • the elastic attachment of the hood at the back of the head is preferably carried out by an elastic band.
  • the hood can preferably be designed in such a way that the elastic band extends at least partially radially on the side of the head or at least partially around the back of the user's head when used as intended, so that the head is spanned along a radial path. This keeps the hood above the eye area.
  • the breathing protection fleece is in particular a fleece made from an FFP2 material.
  • the outer material made of textile and/or fleece material does not have any FFP2 material, but a thinner material with a smaller surface material.
  • the unvented medical hood has a stiffener or nose clip in an area covering the nose.
  • the stiffening or nose clip can be designed in particular as a material reinforcement or as a plastically deformable, flexible material connected to the fleece material.
  • Such a flexible material can preferably be formed as a flexible wire or a flexible metal strip.
  • the visor can be connected, preferably sewn and/or welded, to the outer material and/or the breathing protection fleece with a seam running around the edge around the visible area of the visor, in order to achieve a special tightness in this way.
  • the medical hood can also advantageously have a sealing profile, preferably made of an elastomer, a silicone and/or a TPE, which is arranged between the nose and the mouth.
  • the sealing profile can have a sealing lip and a sealing bead in order to achieve an improved seal that rests against the face.
  • the sealing profile creates a breathing space through the hood that is separate from the visible area, with complete air exchange only taking place through the breathing protection fleece despite the seal.
  • the hood can advantageously have at least two straps, preferably on opposite edge sides of the breathing protection fleece, with which the hood can still be fixed to the head.
  • the bands can then be guided around the edge of the head and connected to one another.
  • a variant of the connection can be a knot.
  • the bands are preferably welded to the breathing protection fleece at the edges.
  • the straps are used for fixation when the hood is on but also when it is removed.
  • the hood can have a partial segment designed as a bib, which at least partially covers the neck and chest area when used as intended.
  • the neck and chest coverage may end at the base of the neck following the back of the head and below the shoulders so as not to present an excessive impediment to movement.
  • the non-ventilated medical hood can also have a hair covering, with the bib preferably extending into the area between the visor and the ears, where it merges into the hair covering.
  • the hair covering covers the bald head up to the aforesaid radial path.
  • the hair cover can end with the elastic at the side.
  • the breathing protection fleece can partially extend into an area between the visor and the face of the user and preferably have a turn-up area below the eyes.
  • a fold-over area is defined by a double layer of material, so that the fleece is folded over along a crease. This achieves an additional sealing effect.
  • the respiratory protection fleece thus extends in a space which lies between the visor and the face.
  • the visor has a smooth, curved surface.
  • a flexible, foldable film is therefore not desired here, but a comparatively rigid and at the same time transparent film material, e.g. as polycarbonate.
  • the visor can be constructed in two layers, with two film layers spaced apart from one another, preferably made of polycarbonate.
  • the visor can advantageously have an anti-fogging coating
  • the hood has a screen to space the visor from the face, into which the visor merges at the edge and which is opposite the hair cover when the hood is in the intended state in the arrangement on the user's head protrudes radially.
  • FIG. 1-3 illustrated embodiment shows a medical hood 1 made of a textile material in the form of a hood.
  • the medical hood 1 has an integrated breathing protection filter fleece 2 in the mouth area and an integrated visor 3 in the eye area.
  • the area of the integrated breathing protection fleece 2 is stiffer than a region 3 beyond the breathing protection fleece, which is also referred to as the outer material 15 within the scope of the present invention. This improves the wearing comfort, especially in the neck region of the user.
  • the area of the breathing protection fleece has a convex shape leading away from the inside of the medical hood 1 .
  • the medical hood 1 has a reinforcement 4 or a nose clip above the nostril opening in the direction of the eyes, for example a material reinforcement or a plastically deformable, flexible material incorporated into the fleece material, such as a flexible wire, a flexible metal strip or the like.
  • a preferred material may be aluminum. This allows a better seal with respect to the field of vision at the level of the visor 3.
  • the medical hood 1 has a sealing profile 5 above the nostrils in the direction of the eyes.
  • the sealing profile 5 can preferably consist of a sealing material such as an elastomer or a material with elastomeric properties such as TPE or silicone.
  • the sealing profile 5 preferably has a cross section with a sealing lip and a sealing bead. The sealing profile 5 is used to additionally seal the visor against fogging by breathing air.
  • the medical hood 1 In a central area of the breathing protection fleece and running below the ears when it is put on, the medical hood 1 has two straps 6 which can be brought together behind the head. In the Figures 1-3 a loop is shown to bring the bands together. However, it is also possible to provide a Velcro fastener, a connection via buttons, for example snaps, or the like.
  • the bands 6 can be made of a textile and/or fleece material, which are connected to the respiratory protection fleece 2 at the edge by, for example, welding 7 or sewing or in some other way.
  • An integrated bib 8 made of textile and/or fleece material covering the neck and chest is also provided on the edge of the breathing protection fleece 2 and the visor 3 .
  • the bib extends to the side of the breathing protection fleece at least up to the height of the Temples, so that the edge of the face is protected but the ears are exposed and there is no reduction in hearing.
  • the breathing protection fleece 2 is completely surrounded on the edge by the material of the visor 3 and/or the bib 8 .
  • the medical hood 1 has an integrated hair cover 9, which is also made of a textile and/or fleece material.
  • the material of the hair covering 9 and the bib 8 is at least 50%, preferably more than 70%, thinner than the material of the breathing protection fleece 2.
  • the basis weight per square meter is also 8 ⁇ m for the hair covering 9 and the bib at least 50% less, preferably more than 70% less than the weight per unit area of the breathing protection fleece 2.
  • the hair cover 9 is provided with an elastic band 11 in at least one free edge area 10, preferably in all free edge areas, so that the size of the hair cover can be flexibly adapted to the dimensions of a particular head.
  • the course of the elastic is not only radially around the head, but it also runs at the level of the temples in the direction of the ears and beyond.
  • the hair cover 9 is made of an identical material as the bib 8, which is the aforementioned outer material. It can preferably be a fleece material made of PE fibers, ie polyethylene fibers.
  • the visor 3 is designed as a sight shield with a smooth, continuously curved surface.
  • Polycarbonate film for example, can be used as the material for the transparent viewing screen. This is only a bend, so that the visor 3 has the cross-section of a "U"'s.
  • the visor is sewn, welded or fixed in some other way all the way round to the material of the bib 8 , the breathing protection fleece 2 and/or the hood 9 .
  • the medical hood 1 is designed in such a way that when it is put on, a partial area 11 of the breathing protection fleece 2 and/or the material of the bib 8, which is arranged between the breathing protection fleece 2 and the visor 3, extends between the nose bridge and the inner surface of the visor 3. This achieves better sealing of the inside of the visor against breathing air.
  • the textile and/or fleece material is turned over, thus defining a turn-up area 16, and therefore has a double layer of material along its edge towards the eyes in the intended state, ie placed on the user's head.
  • the base of the hair cover 9 is designed as a kind of hood screen 12, which leads radially away from the head.
  • the breathing protection fleece 2 has at least one central reinforcement seam 13 and linear side seams 14 proceeding therefrom, which run symmetrically to the central reinforcement seam 13 and form a V-shape. These are arranged at a distance of less than 2 cm from each other.
  • the transition area between the breathing protection fleece 2 and the bib 3 has a surface weld seam that is at least 2 mm, preferably 3-12 mm wide, which enables a firm mechanical connection. The attachment of the bands 6 begins at or on this surface weld.
  • the respiratory protection fleece can be made of a material of class FFP2, which prevents the absorption and spread of bacteria and viruses when speaking, sneezing, coughing or breathing.
  • the material of the bib 8 and the hair cover 9 is preferably made of a more permeable material so that it has a higher flexibility and at the same time a higher air permeability.
  • the medical hood should also be easy to remove despite the high hygiene requirements. It is particularly worth mentioning that because the head is only partially covered, the hair cover together with the visor and fleece can be pulled down overhead, so that a doctor does not necessarily have to loosen the straps 6 for short interruptions, for example to drink or similar. Rather, he can wear the hood around his neck in the removed state for the time beyond the protection area in which the hood is necessary.
  • the hood protects the user and the environment from the transmission of viruses, bacteria, microbes and the like.
  • the visor 2 is formed from at least two layers of a transparent plastic that are spaced apart from one another to protect against kinks that affect the optical refraction.
  • the visor has a so-called "antifogging" coating along its inside, i.e. a coating against fogging.
  • a coating against fogging Such coatings are already known from other fields of application.
  • a typical example of such a coating is silicon nanoparticles embedded in a polymer film.
  • this provides a transparent face shield for additional protection of the eyes or face from aerosols, which combines several elements that are tightly connected to one another in the medical hood 1 .
  • the wearing comfort and the acceptance of the user is just as important an aspect as the increased protection against infection and the applicability, especially in the medical field, where hair covers and the like are otherwise required.
  • the medical hood 1 is designed to be partially open in the area of the back of the head, it completely encompasses the head in the hair area and is held by at least the elastic band 11 and by the two lateral straps 6 in the neck.
  • two lateral elastic bands can be arranged, which weave into the elastic band 11, which leads around the back of the head and is held in this way.
  • the rubber band 11 can be designed in particular as a rubber band.
  • the two bands 6 are made of the same material as the hood. These two ribbons can be tied in a knot at the back of the head. the The configuration of the medical hood 1 also prevents, among other things, pulling on the ears, as occurs when FFP2 masks are worn for a long time. This further increases the acceptance of the hood.
  • the visor 2 is designed in such a way that the medical hood can also be used by people who wear glasses.
  • suitable material is first provided for the respective segments described above for the bib 8 and the hair cover 9, with the two segments being connected in one piece being cut out together from one material
  • the respective parts are then cut to size and a fleece layer is welded on as respiratory protection fleece in a recess in the middle segment of the bib.
  • the shield is then inserted above the breathing protection fleece and the shield is sewn and/or welded to the segment of the bib 8, the hair covering 9 and/or the breathing protection fleece 2 to form the visor 3.
  • the nose clip or the reinforcement is inserted, the elastic band 11 and the straps 6 are inserted. Finally, the seams can be welded.
  • the term medical hood indicates suitability in an area of application. It can be used in particular by doctors, hospital staff, nursing staff, in vaccination centers or by pharmacists, e.g. when carrying out rapid tests or the like. However, suitability does not exclude use in other areas.
  • the hood can also be used in disease-causing areas, such as removing mold or eliminating vermin.
  • one or more sensors for monitoring and/or determining individual components of the breathing air can be arranged in the hood according to the invention.
  • MEMS-based sensors such as the XENSIV-PAS from Infineon
  • Humidity and temperature measurement is also possible with a corresponding MEMS-based sensor, e.g. the HYT221 from IST AG.
  • Biosensors for detecting pathogens can also be used in the hood according to the invention.
  • the sensors advantageously enable conclusions to be drawn about the quality of the exhaled air and the state of health of the user.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP21157205.2A 2021-02-15 2021-02-15 Bonnet médical non ventilé Withdrawn EP4043078A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21157205.2A EP4043078A1 (fr) 2021-02-15 2021-02-15 Bonnet médical non ventilé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21157205.2A EP4043078A1 (fr) 2021-02-15 2021-02-15 Bonnet médical non ventilé

Publications (1)

Publication Number Publication Date
EP4043078A1 true EP4043078A1 (fr) 2022-08-17

Family

ID=74625924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21157205.2A Withdrawn EP4043078A1 (fr) 2021-02-15 2021-02-15 Bonnet médical non ventilé

Country Status (1)

Country Link
EP (1) EP4043078A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296746A (en) 1979-12-18 1981-10-27 Surgikos Disposable full-face surgical mask
EP0374215A1 (fr) 1988-04-22 1990-06-27 Bfd, Inc. Protecteur facial
US5067174A (en) 1989-05-24 1991-11-26 Ritchey Albert E Protective headgear
EP0316291B1 (fr) * 1987-11-11 1992-03-04 Carlo Millauro Masque de protection à usage médical, en particulier chirurgical
US20050010992A1 (en) * 2003-07-18 2005-01-20 Conrad Klotz Head gear apparatus
GB2444224A (en) 2006-05-16 2008-06-04 Lee Bartlett Protective headwear
SE534352C2 (sv) 2009-08-24 2011-07-19 Nettoyage & Desinfection Skyddsglasögon för renrum och metod för att sätta fast dessa
US8261375B1 (en) 2003-06-19 2012-09-11 Reaux Brian K Method of forming a protective covering for the face and eyes
FR3016271B1 (fr) 2014-01-14 2016-01-29 Elis Ensemble pour salles blanches a cagoule ou combinaison a lunettes integrees
US20170258151A1 (en) 2017-04-18 2017-09-14 Lydia Roberts Facial mask
EP3153043B1 (fr) 2015-10-08 2018-05-23 Initial Textil Service GmbH & Co. KG Capuche pour blouse de salle blanche et une telle blouse
KR102003183B1 (ko) 2019-02-27 2019-07-24 배영진 안면마스크
EP3600569A1 (fr) 2017-03-31 2020-02-05 Kimberly-Clark Worldwide, Inc. Dispositif de protection faciale
CN111035085A (zh) 2020-02-23 2020-04-21 王剑波 脑后气道口罩
CN111296965A (zh) 2020-03-23 2020-06-19 深圳市妇幼保健院 一种口腔诊疗用防护隔离装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296746A (en) 1979-12-18 1981-10-27 Surgikos Disposable full-face surgical mask
EP0316291B1 (fr) * 1987-11-11 1992-03-04 Carlo Millauro Masque de protection à usage médical, en particulier chirurgical
EP0374215A1 (fr) 1988-04-22 1990-06-27 Bfd, Inc. Protecteur facial
US5067174A (en) 1989-05-24 1991-11-26 Ritchey Albert E Protective headgear
US8261375B1 (en) 2003-06-19 2012-09-11 Reaux Brian K Method of forming a protective covering for the face and eyes
US20050010992A1 (en) * 2003-07-18 2005-01-20 Conrad Klotz Head gear apparatus
GB2444224A (en) 2006-05-16 2008-06-04 Lee Bartlett Protective headwear
SE534352C2 (sv) 2009-08-24 2011-07-19 Nettoyage & Desinfection Skyddsglasögon för renrum och metod för att sätta fast dessa
FR3016271B1 (fr) 2014-01-14 2016-01-29 Elis Ensemble pour salles blanches a cagoule ou combinaison a lunettes integrees
EP3153043B1 (fr) 2015-10-08 2018-05-23 Initial Textil Service GmbH & Co. KG Capuche pour blouse de salle blanche et une telle blouse
EP3600569A1 (fr) 2017-03-31 2020-02-05 Kimberly-Clark Worldwide, Inc. Dispositif de protection faciale
US20170258151A1 (en) 2017-04-18 2017-09-14 Lydia Roberts Facial mask
KR102003183B1 (ko) 2019-02-27 2019-07-24 배영진 안면마스크
CN111035085A (zh) 2020-02-23 2020-04-21 王剑波 脑后气道口罩
CN111296965A (zh) 2020-03-23 2020-06-19 深圳市妇幼保健院 一种口腔诊疗用防护隔离装置

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