TW201347804A - Improved breathing apparatus - Google Patents

Abstract

The present invention relates to improvements to powered air purifying respirators (PAPR). PAPR are known generally for use in polluted environments. A typical PAPR comprises a powered in power impellor arranged to draw air from the atmosphere, a filter element and a mask to provide the filtered and pressurized air to the user. Embodiments of the present invention place a generator unit, comprising a filter and impellor for pressurizing the air, behind the head of the user, and include components for improving delivery of the air to the user and improving its quality.

Description

Modified breathing apparatus

The present invention is directed to an improved breathing apparatus, including, but not limited to, an improvement in a powered air purifying respirator.

Breathing devices, such as powered air purifying respirators (PAPR), are commonly used in contaminated environments. A typical PAPR includes a powered impeller configured to draw air from the atmosphere, and a filter element through which air passes. The impeller pressurizes the air positively and then delivers the air to the user's respiratory tract via the mask. PAPR can be used when the environment is heavily contaminated or extremely hazardous. Such environments include contaminated industrial areas, hospitals and other potentially hazardous environments. Traditional PAPR has a tendency to be bulky, difficult to handle, and uncomfortable to wear, which is a counter-inducing factor. Typical PAPR is not easy to wear and use for a long time.

The applicant of this case designed a thin (low profile) type PAPR, which is smaller in size and more convenient to use. The applicant's PAPR is described in PCT International Patent Application No. PCT/AU2010/000902, the disclosure of which is hereby incorporated by reference. Further improvements to PAPR are necessary to promote functionality and comfort.

In view of the problems of the prior art, the inventors believe that there should be an improvement technique. In order to design a first aspect, the present invention provides a breathing apparatus comprising a gas flow generator, a filter material and an air conduit. The airflow generator is configured to generate a positive pressure airflow, the filter material is configured to filter air entering the breathing apparatus, and the airway conduit is configured to deliver positive pressurized air and coupled to the mask to provide pressurized filtered air to the user Respiratory tract.

In one embodiment, the airway tube includes an airway connector for connecting the airway to the mask to allow airflow into the mask and to the user's respiratory tract.

In one embodiment, the airflow generator and filter media are stored in a generator device that is remote from the location of the mask. The generator device can be configured to be mounted around the body of the user. In one embodiment, the device is configured to fit over a user's shoulder. In another embodiment, the device can be mounted behind the neck of the user. The device can be mounted on the user's head. In another embodiment, the device can be mounted on a waistband. In another embodiment, the device can be mounted under the user's arm using a shoulder strap. The device can be mounted anywhere on the user's body.

In one embodiment, the mask can be removed from the generator device and the airway. In one embodiment, the mask can be a disposable mask. In another embodiment, the mask is washable.

One advantage of a breathing apparatus consistent with one embodiment is that the generator apparatus can be retained while the mask can be handled or washed separately. The airway can be connected to a new mask or a cleaned mask. At least one embodiment has the advantage that it can be used in the home to reduce air pollution inhalation in urban areas. For example, it can be used by pedestrians, cyclists, and others.

In one embodiment, the air discharge is via the mask and/or the side of the mask. In another embodiment, a separate exhaust valve can be provided within the mask.

In another embodiment, an independent airway is connected to the venting mask. In one embodiment, the independent air duct may be provided with an additional filter material to filter before the exhaust gas is discharged to the environment. It.

As noted above, the device can be configured for use with a disposable mask or can be configured for use with a non-disposable mask. In one embodiment, the breathing apparatus includes a mask that is intended to be reused. The mask can be made of a resilient plastic material such as silicone. In one embodiment, the mask can be configured to conform to the user's face.

In one embodiment, the mask for use with the breathing apparatus includes one or more features to make the wear more comfortable. In one embodiment, the mask has a top that is configured to be positioned adjacent the user's nose and that includes a resilient structural feature on the top that allows the top to be bent to conform to the user's nose.

In one embodiment, the resilient structural feature includes a bellows configuration configured to compress and expand.

In one embodiment, a region configured to contact a human face includes a thinner wall region. This area may also include a gel pad to make the nose or face more comfortable.

In one embodiment, the breathing apparatus can include a mask configured to surround the mouth of the user rather than the nose. In one embodiment, the nasal plug extends from the tip of the mouth, surrounding the mask, and is configured to be inserted into the nostril of the user. This results in a thin (low profile) mask that is useful when wearing goggles or eyeglasses without obstructing eye protection or eyewear. In one embodiment, a channel may be provided inside the nasal plug to allow air to circulate between the interior of the mask and the user's nose.

In one embodiment, the breathing apparatus includes a mask configured to surround only the user's nostrils and expose the mouth. Therefore, the user can still speak and the filtered air is still supplied to the nasal passage for breathing.

In one embodiment, the breathing apparatus includes a mask configuration including a configuration to support A mask holder for the outer cover. The cover may be relatively soft and flexible. The resilient outer cover is configured to cover the nose and/or mouth opening of the human body and provides a volume to accommodate the filtered air.

In one embodiment, the outer cover or portion of the cover is not resilient and is configured to transmit sound so that the user can talk via the mask.

In one embodiment, the airway tube includes an airway wall that encloses the airway passage.

In one embodiment, the airway tube includes an airway tube chassis that is configured to extend to the mask to provide filtered air into the mask. In one embodiment, the airway chassis extends over the front of the mask, and the chassis is provided with an opening that conforms to the opening in the mask to carry air into the mask. In this embodiment, the chassis provides additional support for the mask.

In one embodiment, the filter media includes a filter housing configured to receive and mount a filter media. When the filter media has been used, it can be replaced from time to time.

In one embodiment, the filter housing includes an additional filter base portion configured to receive an additional filter assembly to provide additional filtration.

In one embodiment, the breathing apparatus includes a pair of arms configured to extend from the mask or a mask support to support a breathing apparatus corresponding to the user. In one embodiment, the arms are configured to extend to the neck of the user. In one embodiment, the arms can be joined behind the neck to support the breathing apparatus.

In one embodiment, a separate neck pad can be attached to the distal end of the mask from the arm and used to provide further support to the breathing apparatus when installed at the user. In one embodiment, the support extends from the arm and includes a hook configured to be mounted to the user's ear to provide further support.

In one embodiment, the support extends from the arms and is joined to form a headwear The strap is configured to extend the user's head and provide support.

In one embodiment, the arm includes an airway.

In one embodiment, the breathing apparatus includes a pair of arms extending from the mask and coupled to a generator device that, in use, are configured to be mounted behind the user's head via the arms.

In one embodiment, the generator device is spaced away from the back of the user's head to allow the user to tilt the head without being obstructed by the generator device. In this embodiment, a separate neck support can be provided that is configured to abut the user's neck during use.

In one embodiment, the breathing apparatus includes a power supply configured to supply power to the breathing apparatus.

In one embodiment, the power supply includes a battery mounted adjacent to the breathing apparatus.

In one embodiment, the breathing apparatus can include a supplemental power supply that can be added to the breathing apparatus in use. The supplemental power supply can include a power supply base configured to mount the battery. The power supply base can be configured to be mounted to the breathing apparatus.

In one embodiment, the breathing apparatus includes a bypass tube arrangement configured to bypass the airflow generator in a non-powered mode of the breathing apparatus, the airflow generating device having reduced airflow that may be generated when the airflow generator is not operating The advantage of resistance. This allows the user to breathe relatively freely while the airflow generator is not operating. In one embodiment, the flow tube arrangement includes a manifold and a bypass valve.

Certain embodiments of the present invention are primarily useful in home applications; lightweight versions utilizing disposable masks are particularly suitable for home applications. However, it is expected to be re-usable for many times. The mask version can also be used for home use. Embodiments of industrial use may have more filtering capabilities, and possibly more powerful motors, as well as more severe masks, which are not excluded from the home.

In one embodiment, the breathing apparatus provides a positive air pressure that is slightly higher than the ambient air pressure to ensure that the positive airflow generated in the mask is directed toward the user's airway for inhalation. Usually the air pressure is not very large, because the user is able to take in the air with his own strength, and the air intake should not be pushed by the atmosphere. In one embodiment, the breathing apparatus provides an internal pressure to the mask that does not exceed 3 cm of water depth.

In one embodiment, the breathing apparatus provides an internal pressure to the mask between 0.1 and 3.5 centimeters. In one embodiment, the pressure is provided between 1 and 2.5 cm water depth. In one embodiment, the pressure is provided between 1.5 and 2.2 cm water depth.

In a second aspect, the present invention provides a mask configured to surround at least a user's nostril, the mask having a top disposed adjacent the user's nose, the top including a resilient structural feature that allows the top to be bent to conform to the user's nose.

In one embodiment, the mask is configured for use with a powered air purifying respirator.

In a third aspect, the present invention provides a mask configured to surround a mouth and/or a nostril of a user, the mask having an area configured to contact a person's face, including a relatively thinner wall portion than the remainder of the mask.

In one embodiment, at least a portion of the region further includes a gel pad configured to enhance the comfort of the user's face.

In one embodiment, the mask is configured to mate with a powered air purifying respirator use.

In a fourth aspect, the present invention provides a mask configured to surround a user's mouth without surrounding the nostrils.

In one embodiment, the mask includes a pair of nasal plugs extending from the mask that are configured to be inserted into the nostrils of the user.

In one embodiment, a passage is provided in the nasal plug to allow air to circulate between the interior of the mask and the user's nose.

In one embodiment, the mask can be configured for use with a powered air purifying respirator.

In a fifth aspect, the present invention provides a mask configured to surround only the user's nostrils and expose the mouth.

In one embodiment, the mask is configured for use with a powered air purifying respirator.

In a sixth aspect, the present invention provides a mask configuration comprising a mask holder configured to support an outer cover for surrounding a user's mouth and/or nostrils.

In one embodiment, the mask configuration is configured for use with a powered air purifying respirator.

In a seventh aspect, the present invention provides a mask configured to cover a mouth and/or a nostril of a user, including a relatively rigid portion of the mask to enable sound to be transmitted.

In an embodiment of the invention, a powered air respirator may include a generator device for generating positive pressurized filtered air. In one embodiment, the generator device is mounted within a housing that, in use, is placed behind the neck of the user.

In an eighth aspect, the present invention provides a cooling device configured for use with a powered air respirator having a housing disposed between the neck mounting housing and the user's neck.

In one embodiment, the cooling device includes a liner that is refrigerated and cooled, placed on the surface of a neck-mounted housing adjacent the neck to keep the neck cool.

1‧‧‧PAPR system

2‧‧‧ masks

3‧‧‧Generator device

4‧‧‧ Impeller

5‧‧‧ Filter media

6‧‧‧ Controller

7‧‧‧Sensor

8‧‧‧ Airway tube

20‧‧‧ air duct

35‧‧‧ coarse filter

36‧‧‧Front filter

37‧‧‧HEPA filter

38‧‧‧Active carbon filter

39‧‧‧Photocatalyst filter

40‧‧‧Motor control

41‧‧‧ bellows

42‧‧‧Battery Pack

43‧‧‧Battery (charger)

44‧‧‧Microcontroller (MCU)

45‧‧‧heater

46‧‧‧ Negative ion generator

47‧‧‧Sensor

48‧‧‧User interface

50‧‧‧PAPR

51‧‧‧ Generator device

52‧‧‧ air duct

53‧‧‧ Masks and safety glasses configuration

54‧‧‧ masks

55‧‧‧Safety glasses

56, 57‧‧‧ belts

58‧‧‧(mask) section

60‧‧‧PAPR

61‧‧‧ generator device

62‧‧‧ bracket

63‧‧‧ air duct

64‧‧‧ airway protruding parts

65‧‧‧ Cover

66‧‧‧ headband

67‧‧‧ Connection point

70‧‧‧ breathing apparatus

71‧‧‧ masks and glasses devices

72‧‧‧ masks

73‧‧‧Nose bridge

74‧‧‧Support

75, 76‧‧‧ protective lenses

77, 78‧‧‧ Arms

79‧‧‧ air duct

80‧‧‧ generator device

81‧‧‧ relatively hard part

90‧‧‧ breathing apparatus

91‧‧‧ mask configuration

92‧‧‧Frame

93‧‧‧ masks

94‧‧‧ glasses

95, 96‧‧‧ lenses

97‧‧‧ headband

98, 99‧‧‧ (frame) top

100‧‧‧ relatively hard part

101‧‧‧Generator device

102‧‧‧ air duct

110‧‧‧ breathing apparatus

111‧‧‧Generator device

112‧‧‧ headband

113‧‧‧ (generator device) top

113‧‧‧mask belt

114‧‧‧ (mask) side

116‧‧‧Frame

117‧‧‧ (mask) top

118‧‧‧ (mask) side

119‧‧‧ relatively hard front

120‧‧‧ mask configuration

121‧‧‧ air duct

123, 124‧‧‧nose

130‧‧‧ breathing apparatus

131‧‧‧ mask configuration

132‧‧‧ masks

133‧‧‧ headband

134‧‧‧ (mask) top

135‧‧‧ cushion

136‧‧‧ generator device

137‧‧‧ elastic band

138‧‧‧ (mask) side

139‧‧‧ air duct

140‧‧‧ breathing apparatus

141‧‧‧ mask configuration

142‧‧‧ mask

143‧‧‧ generator device

144‧‧‧ air duct

145‧‧‧Ventilation and exhaust configuration

146‧‧‧ hole

150, 150a‧‧‧ masks (configuration)

151‧‧‧ cushion

152‧‧‧(cushion) section

153‧‧‧Mask top/pad

154‧‧‧ bellows configuration

155‧‧ (lower part of the mask)

156‧‧‧ valve

157, 158, 160, 161‧‧ ‧ air duct

160‧‧‧Inspiratory highlights

161‧‧‧Exhaled breath

161a‧‧‧Exhalation channel/airway

161a‧‧‧ highlight

162, 162a, 162b‧‧‧ generator device

163‧‧‧Neck components

164, 164a‧‧‧ neck pad

165‧‧‧Connector Configuration

166‧‧‧mask clip clip

167‧‧‧mask clip holder

170, 171‧‧‧ plug

172, 173‧‧‧ socket

175‧‧‧ratchet configuration

180‧‧‧ breathing chamber

181, 182‧‧ channels

185‧‧‧Filter components

186‧‧‧ Impeller components

187‧‧‧Additional filter element

187a‧‧‧ (filter element) section

188‧‧‧ Controller

189‧‧‧Power supply

200‧‧‧ breathing apparatus

201‧‧‧ mask configuration

202‧‧‧Slim (low profile) nose

204‧‧‧Goggles

210‧‧‧ breathing apparatus

211‧‧‧ mask configuration

212‧‧‧ mouth cover

213, 214‧‧ ‧ nasal congestion

215‧‧‧ cushion

216‧‧‧ breathing chamber

217, 218‧‧ ‧ air duct

219, 220‧‧‧ channels

221‧‧‧ Cover/nasal hood

230‧‧‧ breathing apparatus

231‧‧‧Generator

232‧‧‧ air duct

233‧‧‧Chassis

235‧‧‧ mask configuration

236‧‧‧ breathing chamber

237‧‧‧ elastic pad

238‧‧‧Piece part

240‧‧‧ breathing apparatus

241‧‧‧ mask configuration

242‧‧‧ masks

243, 244‧‧ ‧ air duct

245‧‧‧ mask breathing chamber

246‧‧‧Face joint pad (nose pad)

247‧‧‧Face bonding pad (upper lip pad)

250‧‧‧ eye mask

251‧‧‧ nose pieces

252‧‧‧Slong slot

254, 255‧‧‧protective lenses

256‧‧‧带带

260‧‧‧Communication components

261‧‧‧ slots

263‧‧‧Microphone (or similar)

265‧‧‧ (mask) extension

270‧‧‧ breathing apparatus

271‧‧‧Neck component installation generator device

272‧‧ ‧ air duct

273‧‧‧ mask configuration

274‧‧‧矽利康层

275‧‧‧Chassis

276‧‧‧Support frame

277‧‧‧Support members

277a‧‧‧ (support member) edge

278‧‧‧矽利康垫

280‧‧‧ breathing apparatus

281‧‧‧ mask

282‧‧‧ Cover

283‧‧‧(generator device) neck assembly

284, 285‧‧‧ clips

286, 287‧‧‧ air duct (component)

288, 289‧‧‧ plugs

290, 291‧‧‧ ports

292, 293‧‧ ‧ small holes

294, 295‧‧ vents

296, 297‧‧‧ ports

298, 299‧‧‧ exhaust valve

300‧‧‧Slong slot

310‧‧‧Connector structure

311‧‧‧Convex members

312‧‧‧ Masks with air ducts

313, 314‧‧‧ fingers

315‧‧‧Generator air duct

316‧‧‧ concave member

317, 318‧‧‧ front end head

319, 320‧‧‧Slong slot

350‧‧‧Cooling device

351‧‧‧Cooling inserts

352‧‧‧ Cover

353‧‧‧ openings

360‧‧‧Plastic inserts

361‧‧‧Base

362, 363‧‧‧ fingers

370‧‧‧ air duct

500, 500a‧‧ filter media adapter

501‧‧‧Generator device (outer casing)

502, 502a‧‧‧ filter components

503‧‧‧ arrow

510‧‧‧Generator device (outer casing)

511‧‧‧Control screen

512‧‧‧Touch button

513‧‧‧ display

515‧‧‧ entrance

516‧‧‧ filter

516A‧‧‧Outside

516B‧‧‧ inside

517‧‧‧ aspirating filter

518‧‧‧Exhalation filter

519‧‧‧ lining

520‧‧‧Storage

520a‧‧‧Frame

520a‧‧‧ Shell

521‧‧‧ hub

521a‧‧‧ side

522‧‧‧ pivot bolt

522a‧‧‧ front opening

523, 524, 525‧‧‧ cylindrical channels

523, 523a‧‧‧ rear opening

523a‧‧‧ Hub Configuration

526‧‧‧ bolt

528, 529, 530‧‧ ‧ lugs

531, 532‧‧‧ cylindrical holes

530a‧‧‧ receiving components

535‧‧ ‧ spring

536‧‧‧ slots

538‧‧‧bend

550, 551‧‧ ‧ spring lock

555, 555a‧‧‧ shell

556a‧‧‧ Filter

556a‧‧‧Overhang

557‧‧‧Slots

558‧‧‧ Hub

560‧‧‧shims

560, 561‧‧ ‧ lugs

562, 563‧‧‧ receiving slots

580‧‧ ‧ protrusions

590‧‧‧Spring lock arm

591‧‧‧ hub

595‧‧‧Charging location

596‧‧‧Charger

600‧‧‧Supply power supply configuration

Arrows A, B, C, D‧‧‧ airflow channels

601‧‧‧Exhalation valve/exhalation filter

610‧‧‧ (producer device housing) cover

611‧‧‧ (generator device housing) base

612‧‧ (top of generator device housing)

613‧‧‧Control screen

614‧‧‧Control screen cover

615‧‧‧ entrance

615‧‧‧Base

616‧‧‧ Cover

620‧‧‧Valve base

621‧‧‧Valve Actuator/Valve Disc

622‧‧‧Filter base

623‧‧‧ Filter media

624‧‧‧ filter housing

630‧‧‧Head support device / headband

631, 632‧‧‧ connectors

640‧‧‧ valve seat

641‧‧‧ disc

651‧‧‧ protruding rod

652‧‧‧ sleeve

653‧‧ spring

653‧‧‧ channel

655, 656‧‧‧ disc

657‧‧‧Perforated surface

658‧‧‧Ring Slot

659‧‧‧ openings

660‧‧‧Perforated outer edge (perforation)

670‧‧‧Small pouch

671‧‧‧ openings

672‧‧‧ bag wall

672‧‧‧Power box components

673‧‧‧Rechargeable battery pack

674‧‧‧Battery Charger

675‧‧‧Microcontroller (MCU)

676‧‧‧User interface

677‧‧‧Connector

678‧‧‧ bag cover

680‧‧‧ mesh part

681, 682‧‧‧ belts

684‧‧‧ lugs

690‧‧‧Printed circuit board

691‧‧‧ channel

700‧‧‧ perforations

700‧‧‧ Cover

800‧‧‧Circulating tube configuration

801‧‧‧Management

802‧‧‧ channel

803‧‧‧ channel

804‧‧‧ valve

900‧‧‧ breathing apparatus

901‧‧‧Neck pad

902, 903‧‧ ‧ air duct

905‧‧‧Adjust the bracket

906‧‧‧ button

907‧‧‧ hole

910‧‧‧Air clip

911‧‧‧Band

912‧‧‧ buckle

915‧‧‧ pivot point

920‧‧‧Gas filter cartridge

Central part of 921‧‧‧ (producer device)

The first figure is a block diagram depicting components of a breathing apparatus consistent with an embodiment of the present invention.

The second figure is a block diagram of a gas flow generator and filter element of a breathing apparatus consistent with an embodiment of the present invention.

The third drawing is a perspective view of a breathing apparatus consistent with an embodiment of the present invention.

The fourth figure is a cross-sectional view of the apparatus of the fifteenth diagram showing the internal components.

The fifth drawing is another perspective view of the embodiment of the third figure illustrating the mask configuration separate from the rest of the device.

The sixth drawing is a partial view of the mask configuration of the embodiment of the third to fifth figures.

The seventh drawing illustrates another embodiment of the present invention.

Figure 8 is a diagram of another embodiment of the invention.

The ninth drawing is an illustration of another embodiment of the invention.

Figure 11 is a diagram of another embodiment of the invention.

The eleventh drawing is an illustration of another embodiment of the invention.

Figure 12 is a diagram of another embodiment of the invention.

Figure 13 is a diagram of another embodiment of the invention.

Figure 14 is a diagram of another embodiment of the invention.

The fifteenth diagram is an illustration of another embodiment of the invention.

Figure 16 is an internal view of the mask configuration of the embodiment of the fifteenth embodiment.

Figure 17 is a diagram of another embodiment of the invention.

Figure 18 is a cross-sectional view showing the configuration of the mask of the embodiment of the seventeenth embodiment.

Figure 19 is a diagram of another embodiment of the invention.

Figure 20 is a cross-sectional view of the mask configuration of the embodiment of Figure 19.

The twenty-first figure is an illustration of another embodiment of the invention.

The twenty-first A diagram is a "skeleton" diagram which can be used in an embodiment similar to the embodiment of the twenty-first embodiment.

The twenty-first B diagram shows an illustration of a mask using the skeleton of the twenty-first embodiment.

The twenty-first C diagram is another view of a mask using the skeleton of the twenty-first A diagram.

A twenty-second diagram is an illustration of another embodiment of the invention.

The twenty-third figure is an exploded view of the parts of the embodiment of the twenty-second figure.

The twenty-fourth embodiment is a representation of the mask cover portion of the embodiment of the twenty-third embodiment.

The twenty-fifth and twenty-sixth drawings are details of the airway of the breathing apparatus in accordance with an embodiment of the present invention.

The twenty-seventh embodiment is a perspective view of a generator device for use with a breathing apparatus consistent with an embodiment of the invention, showing the installation of an additional filter media adapter and additional filter media.

Figure 28 is a view of the generator device of Figure 27 showing the filter material removed from the additional filter adapter.

A twenty-ninth diagram is a perspective view of a breathing apparatus consistent with another embodiment of the present invention.

Figure 30 is a plan view of the neck support used in conjunction with the breathing apparatus of the embodiment of the twenty-ninth embodiment.

The thirty-first figure is a side view showing the device of the twenty-ninth figure worn by the user.

Figure 32 is a detail of an embodiment of the twenty-ninth embodiment illustrating the connection of a neck support to a breathing apparatus.

The thirty-third figure is a detail of an embodiment of the twenty-ninth figure showing an alternative connection of a neck support.

The thirty-fourth embodiment is directed to a cooling device for use with a breathing apparatus that is consistent with an embodiment of the present invention.

The thirty-fifth diagram is in which the cooling device is properly placed on a breathing apparatus in the thirty-fourth embodiment.

Figure 36 is a perspective view of a support insert for use with a breathing apparatus consistent with an embodiment of the present invention.

A thirty-seventh drawing is a schematic view showing the position of the support insert in use in the thirty-sixth embodiment.

Figure 38 is a block diagram of a gas flow generator and filter element of a breathing apparatus consistent with another embodiment of the present invention.

A thirty-ninth diagram is a perspective view of a breathing apparatus consistent with another embodiment of the present invention.

Figure 40 is another perspective view of the breathing apparatus of Figure 39, showing a head supported in position.

The forty-first figure is a disassembled view of the embodiment in the fortieth diagram.

The forty-second diagram is a further disassembled view of the components of the apparatus in the fortieth diagram.

The forty-third figure is a disassembled view of further components of the apparatus in the fortieth diagram.

The forty-fourth embodiment is an upper side perspective view of an exhalation filter material that can be used in conjunction with embodiments of the present invention.

The forty-fifth figure is a disassembled view of the filter material in the forty-fourth figure.

Figure 46 is a cross-sectional view of the filter material in a forty-fourth diagram.

The forty-seventh embodiment is a perspective view of a generator device for use with a breathing apparatus consistent with an embodiment of the present invention.

Figure 48 is another perspective view of the generator device of the forty-seventh drawing showing that a filter housing is open.

The forty-ninth diagram is in the description of the generator device of the forty-seventh embodiment, with an additional filter adapter and additional filter material.

Figure 50 shows the generator device in the forty-ninth diagram, additional filter material from the additional filter adapter Get rid of.

The fifty-first figure is an upper side perspective view of the embodiment of the thirty-ninth figure, connecting the additional filter material adapter and the additional filter material in the forty-ninth and fifty-fifth views.

Figure 52 is a detail of an embodiment of the thirty-ninth figure showing a connection point for power charging.

The fifty-third figure is a top schematic view of a generator device used in conjunction with a filter device in accordance with an embodiment of the present invention.

Figure 54 is a side elevational view of the generator device of the fifty-third figure.

The fifty-fifth and fifth-fifth diagrams are diagrams showing an embodiment of the generator apparatus in the fifty-third and fifty-fourth views, illustrating different postures in use.

Figure 56 is an exploded view of the rear end of the apparatus in accordance with an embodiment of the present invention, illustrating the configuration of the bypass tube.

A fifty-seventh diagram is a detailed view of a flow tube valve assembly for use with the embodiment of the fifty-sixth embodiment.

The fifty-eighth and fifty-ninth drawings are flow charts illustrating a control rule system for respiratory response configuration control of a respiratory device consistent with an embodiment of the present invention.

The sixtieth figure is a graph showing the two mask pressures and motor power during one breathing cycle. And the sixty-first A chart and the sixty-first B chart are in the form of a mask pressure wave (vibration) for the operation of an embodiment of the present invention.

The contents, features, and embodiments of the present invention are described below, and the reviewer will be further aware of the present invention.

The first figure is a block diagram showing the components of a powered air purifying respirator (PAPR) system consistent with embodiments of the present invention. The PAPR system 1 includes the following components: a mask 2 that is configured to form a closed breathing plenum around the mouth and/or nostrils of the user. The breathing chamber formed by the mask is configured to receive purified air, which in this example is a positive pressure; an airflow generator and filter element (generator means) 3, in this example, the airflow generator includes a An impeller 4 having a power supply (not shown) is configured to positively pressurize air drawn from the external environment. The generator device 3 further includes a filter medium 5 configured to filter air, a controller 6 for controlling the generator device 3, and in some embodiments, one or more sensing for detecting air pressure/air quality Device.

An airway tube 8 is configured to deliver positive pressurized air from the generator device 3 to the mask 2.

The mask 3 can include any form of mask that can form a closed breathing plenum around the mouth and/or nostrils of the user. It may include a mask that can be separated and removed from other locations of the device, and may include a non-disposable but washable mask.

Positive pressurized filtered air from the generator device 3 is introduced into the breathing plenum formed by the mask 3 via the air duct 2o. The positive pressure within the breathing chamber is advantageous because it reduces the amount of unfiltered air that may enter the breathing chamber from around the edge of the mask.

The mask can be configured such that when the user exhales, the exhaled air is expelled through the mask. The mask itself may be a filter material, in which case the exhaust may pass through the filter material. Alternatively or additionally, the exhaust may be around the face via the edge of the mask.

In one embodiment, an exhaust valve (see below) can be provided for use with the mask 3. The exhaust valve allows the exhaust to flow out, reducing the pressure in the breathing chamber when the user is heavily breathing.

In another embodiment, the airway tube can include a return air passage that receives exhaust gas for exhausting via an additional return airway. In an embodiment (see below), an additional filter material can be provided to filter the exhaled air.

In an embodiment, the generator device 3 can be mounted over a user's shoulder or at a convenient location behind the user's neck. The generator device 3 can be placed in different positions, and the shape of the outer casing may also be different.

For example, it can be placed under the arm, or in a jacket pocket (probably a rectangular shape similar to a smart phone or similar device). For example, it can be attached to the back of the neck and it can be placed on the user's belt. It can be placed in any other position and the shape can be adjusted accordingly.

The generator device 3 can be arranged in one or more versions, each of which may have different functions due to factors such as cost and required functionality.

In one embodiment, only the filter media and positive air pressure functions may be required. Therefore, in the present embodiment, the generator device 3 includes a filter medium 5 for filtering air, and an impeller 4 for positively pressurized air. In this case, a controller 6 may be a simple ON-OFF switch. In another embodiment, the controller 6 can include a user setting switch to enable the user to set a standard for the impeller 4. Therefore to reduce or increase the pressure on the mask. An impeller and control power supply (not shown), such as a battery, is provided.

The generator device embodiment may include various variations of the embodiments described in the International Patent Application No. PCT/AU2010/0000902 filed by the present applicant.

The second drawing is a block diagram showing various components that can be utilized in the generator apparatus of this embodiment of the present invention. As noted above, certain components are optional, and the components included will depend on factors such as cost and device functionality. A simple device may include only one filter, a control switch, and an impeller, as described above. Other embodiments may have additional components that provide additional functionality, such as shown in the second figure.

The filter material 5 can comprise a single type of filter material or can comprise a plurality of different types of series filter media. The second figure illustrates a coarse filter material 35 that removes large particles present in a dusty environment, such as a wood cutting workshop. The coarse filter material 35 can be a low cost synthetic fiber and can be cleaned or discarded as soon as it is used up.

A front filter material 36 is attached to the rear of the coarse filter material 35. The front filter material 36 may be made of a suitable synthetic fiber, such as polypropylene, preferably having a particle size of 5 μm or more with an efficiency equal to or better than 90%.

A HEPA filter 37 is attached to the front filter member 36. The HEPA filter material is a particulate filter material, and may further include an activated carbon filter material 38 and a photocatalyst filter material 39. A filter array comprising all of the media 35, 36, 37, 38 and 39 provides very good filtration. In a simple embodiment, such as a simple breathing apparatus configured for use in an urban environment, a simple HEPA filter 37 is sufficient.

Different filter materials 35, 36, 37, 38, 39 can be used independently or together, depending on Need to apply. The filter media can be placed in one or more filter elements and can be easily removed for disposal and replacement, or cleaning.

The impeller arrangement of the embodiment of the second figure includes a motor control 40 and a bellows 41, respectively. A battery pack 42 for the power supply is provided, and a battery charger 43 for charging the battery 43 for insertion into an external power supply. In the present embodiment, the controller 6 includes a microcontroller (MCU) 44.

The generator device in the second figure includes a heater 45 for heating the cold air supplied to the mask 2. In an alternate embodiment, a cooler and air conditioner can be provided. Further, in another embodiment, a humidifier can be provided. The breathing apparatus can thus be adapted to various environments. Heaters can be used in cool environments and coolers and air conditioners in hot environments.

The embodiment in the second figure also includes an negative ion generator 46 to provide negative ions.

The embodiment in the second figure is provided with a sensor 7, which in the present embodiment is presented in the form of a flow sensor and/or pressure sensor 47. A flow or pressure sensor can be placed in or near the airway tube 8 to sense pressure. The pressure can be compared to the user pressure setting within the MCU 44 and the bellows 41 can be adjusted to vary the pressure. In one embodiment, the MCU 44 may include a control mechanism to sense the rate of change of airflow or pressure and thereby change the bellows 41. Thus when the user begins to breathe more quickly, the bellows 41 can be enhanced to compensate for the increased air demand. A description of such a feedback control mechanism is described in the International Patent Application (PCT) No. PCT/AU2010/0000902, the disclosure of which is incorporated herein by reference.

A user interface 48 can be provided for inputting user controls such as pressure settings, heater settings, on/off switches, and any other desired controls.

MCU 44 can be programmed and can be modified with various software modules. can. The MCU can operate the upgradeable software or program logic to control the flow rate, depending on user settings and/or environmental conditions and/or sensor data.

The third figure shows an embodiment of a breathing apparatus consistent with the present invention. The mask configuration 150 is coupled to a generator device 162 via air ducts 160, 161 (and air tubes 157, 158).

The configuration in the third figure is similar to the PAPR device described in the applicant's earlier patent application No. PCT/AU2010/000902. Variations may be made by any of the mask configurations 150 (described in the sixth figure below), including any of the variations discussed herein (particularly the generator device 162).

The generator device 162 is mounted by a neck assembly 163 that is worn over the back of the user's neck. A neck pad 164 provides the user with a degree of comfort which may be made of a soft and resilient material.

Cooperative connector configuration 165 (one identical connector configuration on the other side of the device, not shown in the third figure) acts to connect the mask configuration 150, the airways 157 and 158, and the airways 160 and 161 to the generator device 162. . The airways 160 and 161 substantially form an "arm" that joins and supports the mask arrangement 150 and the generator device 162.

The fifth figure shows an exploded view of a breathing apparatus showing that the mask arrangement 150 is separated from the generator apparatus 162. Connector configuration 165 (see FIG. 5) includes a mask clip 166 and a mask clip acceptor 167 configured to receive and secure the mask clip 166. The air tubes 157 and 158 have plugs 170 and 171 that engage the corresponding sockets 172 and 173 on the air tubes 160 and 161, respectively. The airways 160 and 161 are elastically compressible (ie they can be extended and compressed to provide some elastic breathing apparatus around the neck and face of the user and help with good installation) and a ratchet configuration 175 (the same ratchet configuration is located in the fifth The other side of the figure, not shown), allows the air ducts 160, 161 to be adjusted for comfort and fit. The length.

The fourth figure shows a cross-sectional view of the apparatus of the embodiment of the third figure. A breathing chamber 180 is provided in a space between the user's face and the outer cover of the mask 150. The breathing chamber 180 is isolated from the surrounding environment by a seal around the user's face. When connected, the airways 157, 158, 160, 161 are from the generator device 162 to the mask breathing plenum 180, and are returned to the airflow providing channels 181, 182 of the generator device 162 for transport into the environment. In the fourth figure, the direction of the airflow is indicated by white and black arrows, the black arrows indicate the exhaled air, and the white arrows indicate that the pressurized filtered air is supplied to the mask breathing plenum 180.

The generator device includes a filter element 185 that receives and filters the inhaled air. The filter element 185 can include a plurality of different types of filter media, as described above, such as the front filter media, the HEPA filter media, and others, depending on the type of care desired for the environment in which the respiratory device is intended to be used. An impeller member 186 pressurizes and advances the air in the direction indicated by the arrow. The exhaled air can be delivered via an additional filter element 187 to avoid pathogens from the user, such as being transported into the environment. A software controlled controller 188 can control the impeller 186 and other aspects of the breathing apparatus. A power supply 189, presented in the form of a battery, is further disposed within the generator device.

The breathing apparatus may also include one or more pressure flow and/or temperature sensors. By monitoring the user's breathing pattern, the controller 188 can control the rate of air flow delivered to the mask breathing plenum 180. The controller can operate the upgradeable software or program logic to control the flow rate, depending on user settings, environmental characteristics, and/or sensor data.

The breathing apparatus of this embodiment may include one, more or all of the other components described above in the second figure. A valve configuration, such as described in reference to Figures 46, 47, and 48, can be used as valve 156. By a microphone, voice signal processing / noise cancellation A selective communication module consisting of a Bluetooth module can be implemented in this embodiment (and other embodiments). The purpose is to speak softly and clearly when wearing a mask. The microphone is desirably located within the neck assembly 162 or it can be mounted within the mask. A noise cancellation and Bluetooth module is mounted to the neck assembly 162. Noise from the motor and the environment is eliminated and the sound is enhanced. The sound is converted into an audio stream that is transmitted to a suitable Bluetooth enabled device, such as a nearby wireless speaker or smart phone. Therefore, voice communication becomes simple without having to take off the mask. When wearing a Bluetooth earphone or headset, the user can whisper the phone even in a noisy environment. With the Bluetooth module, the smart phone can be used as a remote control device for a breathing device (for example, using an "application"), as well as downloading software, retrieving breathing device usage information, alarms, filter replacement warnings, and the like.

The sixth drawing is a perspective view of a mask configuration consistent with an embodiment of the present invention. The mask configuration of this embodiment includes a mask feature that promotes user comfort and mask effectiveness. In the present embodiment, the mask 150 includes a face contact pad 151 disposed around the mask and contacting the user's face in use. The liner 151 can be configured to be relatively resilient and softer than the remainder of the mask, and may even be made of a different material. A portion 152 of the pad configured to contact the upper portion of the face and the bridge of the nose is configured to be thinner than the remainder of the pad 151 to promote comfort.

The mask top 153 is provided with an elastic bellows configuration 154 that allows the cushion 153 to be bent. The bellows configuration 154 forms the resilient structural features of the mask 150, again enhancing comfort and more in line with the user's face.

The lower portion 155 of the mask is provided with a valve 156 that carries air from the mask 150 when the pressure within the mask 150 exceeds a predetermined standard.

In the present embodiment, the air tubes 157, 158 and the mask 150 are integrated. guide The trachea 157 carries the pressurized filtered air from the generator device 162 to the mask, and the airway 158 carries the exhaled air from the mask back to the generator device where it can be filtered first.

Features associated with the mask, such as the resilient structural features and the thinner wall regions, are not limited to a mask having an airway tube, such as that shown in Figure 6. The airway tube can be independent, for example, of any of the types shown above or described below, or any other type.

Figures 7 through 13 illustrate various types of breathing apparatus of a type consistent with embodiments of the present invention.

Referring to the seventh diagram, a PAPR consistent with a further embodiment of the present invention is illustrated. The PAPR 50 includes a generator device 51, an airway 52, and a combination mask and goggle arrangement 53. The generator device 51 and the air conduit 52 may comprise components similar to those described above with respect to the prior embodiments, and will not be further described herein. The airway tube is a single airway tube 52 from the generator device 51 to the mask 53, without the return air tube as in the embodiment of the third figure. The generator device 51 is mounted on the shoulder.

The mask and goggles configuration 53 includes a nasal mask 54 and a pair of goggles 55 in the form of a pair of goggles that are secured in use by a strap 56 that passes over the ears and behind the neck. Still alternatively, the strap 56 can include a pair of supports that pass only over the ears.

In the present embodiment, the safety goggles 55 are fixed to the mask 54 and can be separated from the mask 54 for cleaning. The mask 54 is secured by a strap 57 disposed behind the neck. In this embodiment, the mask 54 is not a disposable mask, but is a mask made of a washable material, such as a kelicon. A portion 58 of the mask is relatively flat and rigid to convey sound waves so that the user can speak through it.

In the present embodiment, the generator device 51 is worn over the shoulder and has a single air duct 52 for providing filtered pressurized air to the mask 54. The exhaled air may escape the outlet cover 54 via a filter material and/or an exhaust valve (not shown).

A further embodiment is shown in the eighth diagram. The PAPR 60 of the present embodiment includes a generator device 61 which, in the present embodiment, includes a neck mounting housing extending around the back of the user's neck and having a remaining portion 62 resting on the user's shoulder. In the present embodiment, the air guiding tube 63 includes a pair of air guiding tube protruding portions 64, only one of which is shown in the figure, and the other air guiding tubes 64 are wound around the other side of the neck to connect the generator on the other side of the user (not shown). Device 61. The structure of the air guiding tube 63 is generally similar to that of the air guiding tube of the embodiment of the third to fifth figures.

The PAPR 60 also includes a mask, which in this embodiment is covered by a decorative mask cover 65. The decorative mask cover 65 can include a material that is coupled to the device 61 and a headband 66 at a connection point 67. In the present embodiment, the outer cover 65 is designed to provide aesthetic appeal. The decorative mask cover 65 further protects the face from environmental damage. This is very important, especially in countries where it is important to protect your face from environmental damage. For example, a decorative cover may be effective in protecting the face from the effects of ultraviolet radiation.

In use, the pressurized filter air is supplied through a gas conduit 64 into a mask (not shown) located below the outer cover 65. On the other side of the user (not shown), the second protruding portion 64 of the airway delivers the exhaled air away from the mask and back to the device 64. The exhaled air is transported from the device 61. In the present embodiment, device 61 includes an expiratory filter that filters the exhaled air and further includes a filter for filtering the air that is carried into the device. Having one type of exhalation filter means that any virus or bacteria that may be carried by any user will not be transported into the environment, or at least reduce the transport of such pathogens into the environment.

The ninth figure illustrates another embodiment of the present invention. The breathing apparatus 70 of the present embodiment includes a mask and eyeglass device 71. The mask 72 includes a nose bridge 73 that extends upwardly to the integral eyeglass support 74, which supports the protective lenses 75,76. The support 74 includes a pair of arms 77, 78 that extend behind the user's ear to support the configuration. The arms 77, 78 can be rigid plastic or, in an alternative embodiment, can include an elastic band that bypasses the back of the user's head. The breathing apparatus 70 also includes an air conduit 79 and a generator device 80 that are similar to the generator device and air duct of the embodiment of the eighth embodiment. The mask 72 includes a flat and relatively rigid portion 81 that allows sound to be transmitted.

The tenth diagram illustrates a further embodiment of a breathing apparatus consistent with the present invention.

The breathing apparatus 90 of the present embodiment includes a mask arrangement 91 that includes a frame 92 for supporting the mask 93 and the glasses 94, including a pair of integral lenses 95 and 96. A headband 97 is attached to the tops 98 and 99 of the frame 92. The headband 97 extends over the back of the user's head for use, and is disposed around the face of the user with a fixed mask. The frame 92 forms a complete mask that covers the nose and mouth of the user and supports the lens 94. The mask 92 has a flat and relatively rigid portion 100 for transmitting sound. The frame 92 can be relatively resilient to conform to the contours of the user's face.

The generator device 101 and the airway tube 102 are similar in form to the embodiment of the eighth figure.

The eleventh diagram is a side view of a further embodiment of a breathing apparatus 110 consistent with the present invention. In the present embodiment, the generator device 111 is configured to be positioned behind the neck of the user. A headband 112 is attached to the top 113 of a generator device 111. The headband 112 extends from the posterior aspect of the neck to the back of the head and is integral with the mask strip 113 which bypasses both sides of the head and is coupled to the side 114 of the mask arrangement 110 (the other side of the user's face has another One side portion 114, not shown in the drawing). The mask strip 113 and the headband 112 work together to support the entire breathing apparatus 110.

The mask configuration 120 includes a frame 116 forming a mask top 117 and having a side portion 118 (the other side 118 on the other side of the head, not shown) connecting the top portion 117 of the mask configuration 110 and the generator device 111. The frame of at least portion 118 is made of a relatively resilient material such that the entire device 110 can pass over the user's head and be secured in place.

The mask configuration 120 also includes a relatively rigid front portion 119 that allows sound to be transmitted. An airway tube 121 connects the generator device 111 to a breathing plenum formed by the mask arrangement 120 around the mouth and nose of the user. The same airway tube (not shown) is placed on the other side of the head to receive the exhaled air in a manner similar to that of the device of the eighth figure.

A twelfth figure illustrates still another embodiment of the present invention. The breathing apparatus 130 of the present configuration has a mask configuration 131 that includes a full face mask 132 that extends to the nose and chin. A headband 133 is attached to the top 134 of the mask configuration (the other top 134 is located on the other side of the head, not shown) and extends over the back of the head for a fixed configuration. A pad 135 is attached to the headband 133 on the back of the head.

The breathing apparatus includes a generator device 136 located on the back of the head and secured by an elastic band 137 (also shown on the other side of the head with an elastic band 137, not shown) that is coupled to the mask arrangement 130 at the side 138 ( The other side 138 is located on the other side of the head, not shown in the drawing). An airway 139 (the other airway is located on the other side of the head) connects the mask 132 to the generator device 136.

A thirteenth diagram shows a further embodiment of a breathing apparatus. In the present embodiment, the breathing apparatus 140 includes a mask configuration 141 that includes a mask 142 that extends from the bridge of the nose to the underside of the user's chin. The device 140 includes a posterior device 143 and an airway tube 144 from the sides of the neck (the other side of the air duct is not shown).

A venting venting arrangement 145 is provided in front of the mask. Ventilation configuration includes mask material A hole 146 in the material and a filter material under the hole to filter the exhaled air.

In the present embodiment, filtered pressurized air is supplied to the mask arrangement 140 via the airway 144, and the exhaled air is returned to the generator device 143 via other airways (not shown) on the other side of the head and through an exhaled air. It is transported with a filter material. If the pressure within the mask rises, some of the exhaled air can be transported through the holes 146.

The fourteenth embodiment illustrates a further embodiment of a breathing apparatus consistent with the present invention, generally designated by the symbol #200. The breathing apparatus 200 is a variation of the embodiment in the third to fifth figures. Breathing device 200 includes a generator device 162 and air tubes 160, 161 (not shown), which are identical to the embodiments of Figures 3 through 5, and will not be further described.

The breathing apparatus 200 includes a mask configuration 201 that includes a thin (low profile) nose 202. The thin (low profile) nose 202 is configured to surround the user's nostrils without covering the upper portion of the user's nose. This allows the user to wear relatively large glasses such as goggles 204 without the goggles 204 being obstructed by a thin (low profile) mask.

The mask configuration 201 has a thin (low profile) nose 202 that can be used in conjunction with variations that do not include the generator device mounted behind the neck. For example, the generator device can be mounted elsewhere and connected to the mask configuration 201 via different types of airways, such as described above.

The fifteenth and sixteenth embodiments illustrate further embodiments of the present invention. The breathing apparatus 210 of the present embodiment includes a neck mounting generator device 162 having air guiding tubes 160, 161. The airway and generator device 162 has the same components as the embodiment of the third and fifth figures and will therefore not be further described.

However, the mask configuration 211 of the present respiratory device 210 is a hybrid mask configuration that includes a mouth covering portion 212 and nasal plugs 213, 214, wherein the nasal plug is configured to communicate with the user's nose Channel engagement.

In more detail, the mouth portion 212 includes a pad 215 that is configured to surround the mouth of the user, and the mask configuration 211 defines a breathing plenum 216 around the mouth of the user. The airway tubes 217, 218 are in communication with the breathing plenum 216 and the airways 160, 161 located at the neck portion of the breathing apparatus 210.

The nasal plugs 123, 124 have channels 219, 220 that communicate with the breathing plenum 216. The nasal plugs 219, 220 are located within the nostrils whereby the user can breathe through the nasal plugs 213, 214, as well as the filtered pressurized air through the mouth and mask breathing plenum 216.

The nose mask portion 221 of the mask configuration 211 extends over the nasal plugs 213, 214 to protect them and, in use, also extends to the bottom of the user's nose.

The hybrid mask configuration 211 forms a thin (low profile) mask having a thin (low profile) cover 221 that also allows the goggles and other heavy duty glasses to be worn with the breathing apparatus 210.

For comfort, the mouth pad 215 can be made of a relatively soft and resilient material such as a kelicon.

As with other embodiments, the mask configuration 211 is not limited to use with a neck assembly generator 162, the generator device can be mounted elsewhere, and the different air conduits can be used with a mask configuration similar or identical to 211. .

Variations of the embodiment of the fifteenth and sixteenth drawings include a mask configuration that does not include a nasal closure 221 . In this embodiment, the nasal plug extends only from the top of the mask portion 212 to the user's nose without being protected by the mask.

Figures 17 and 18 illustrate an embodiment of a breathing apparatus consistent with the present invention. One-step embodiment is generally indicated by the symbol symbol 230. This embodiment includes a neck mount generator device 231. The air duct 232 from the generator device 231 is connected to an air duct chassis 233. Please note that a same air duct 232 is provided on the other side of the user and is not visible in this figure. The airway tube chassis 233 is a relatively rigid component that bypasses the user's face and is coupled to the airway tube 232 such that an air passageway passes through the mask arrangement 235 from the generator device 231.

In this embodiment, the mask 235 covers only the user's nostrils so that the user's mouth is unconstrained, such that they can communicate, for example.

Figure 18 shows a cross-sectional view of a mask 235 showing a breathing chamber 236 formed by a mask through which pressurized air passes to the user's nasal passage.

As shown, the chassis 233 is engaged with the mask body 235. A resilient pad 237 is formed on top of the mask 235 to mitigate impact on the nose bridge and face of the user. A second pad portion 238 is formed to mitigate the impact on the upper lip of the user.

An advantage of this embodiment is that the user of the mask 235 can continue to talk, eat or drink while still receiving filtered pressurized air through the nasal passages.

Embodiments of the nasal mask configuration 235 and air chassis 233 can be (adjusted) for use with any of the above described generator devices, or any other generator device, whether placed behind the neck or elsewhere around the user.

In this embodiment, the relatively rigid chassis 233 operates to support the mask 235 against the user's face.

19 and 20 illustrate another embodiment of a breathing apparatus consistent with the present invention, generally designated by the symbol 240.

The breathing device 240 includes a generator device 162 and an elastic air tube 160, and The configuration is the same in the fifteenth to sixteenth drawings, and the component will not be further described.

The mask arrangement 241 in this embodiment includes a mask 242 that is configured to cover only the user's nose opening. In operation, the user's mouth is not covered. The mask configuration also includes air ducts 243, 244 that engage the airway tube 160 and that define a mask breathing air chamber 245 that the catheter can deliver air to and from the mask 242. The mask 242 includes a face engaging pad 246 (nose pad) and a 247 (upper lip pad) to connect the user's face. The liner can be made of a relatively soft material, such as soft conical.

The mask configuration 241 also includes an eye shield 250 that is coupled to the mask 242. In the present embodiment, an eyecup nose piece 251 is coupled to an elongated slot 252 that extends through the mask 242. The nose piece 251 can be detached from the slot to remove the eye shield 250. In another embodiment, the nose piece 251 can be permanently affixed to the mask 241 or can be integral therewith. In the present embodiment, the eye shield 250 includes protective lenses 254, 255. A strap 256 is mounted to the eye shield 250 and extends around the back of the head to secure the eye shield 250.

This embodiment provides a selective communication component 260. The communication assembly 260 engages a slot 261 in the lower portion of the mask 241 and extends downwardly from the mask such that a microphone or the like 263 is placed adjacent the mouth of the user. A suitable wireless link, such as Bluetooth, can be set up to connect to the communication.

When the user's mouth is unconstrained, communication can be enjoyed, including communication via a web company link placed in the mask via an object 260.

The mask 241 also includes a downwardly extending cover from the mask to partially cover the extended portion 265 of the mouth.

The twenty-first figure illustrates another further embodiment of the breathing apparatus, generally designated by the symbol 270. The breathing apparatus 270 includes a neck assembly device 271 that The air duct 272 is connected to the mask arrangement 273 as a whole. Another airway 272 extends on the other side of the user, but is not shown in this figure.

In the present embodiment, the mask arrangement 273 includes a relatively thin layer of lycopene 274 that is placed over and supported by a polycarbonate chassis 275. The chassis includes a support frame 276 that extends into the airway 272 of the breathing apparatus (see Figure 21A, which shows the support frame 276 is separated from the mask configuration. It also includes a central portion of a curved sheet that forms a thin layer of lycopene 274. The support member 277 is clearly shown in the twenty-first B and twenty-first C. In the twenty-first B, the kelonic layer 274 in the region of the support member 277 is cut, except for the seal The edge 277a of the member 277 is referred to. Since the support member 277 is relatively rigid, it supports the user to speak there through the mask. In the twenty-first C-picture, the layer of the lycocan on the support member 277 is not cut, but Still quite hard enough to support speaking.

The support member supports a thin layer 274 which may be relatively thin and flexible. The polycarbonate chassis can be made by 3D printing, and the air guiding tube 272 can also be manufactured in this manner, and the air guiding tube 272 can be integrated with the chassis 275 to form an "arm" extending rearward from the mask and connecting the generator device. Things." For comfort, the Silicone layer 274 can also include a Silicone pad 278 around the mouth and nose of the user.

When compared to the mask of the previous embodiment, the kelonic layer 274 may be relatively thin and may include one or more relatively hard layers that will propagate sound when the user speaks. Botanical has the advantage of being lighter in weight.

Referring to Figures 22 through 24, a synthetic mask breathing apparatus 280 is illustrated which includes a mask 281 and a mask decorative cover 282. Breathing device 280 includes a neck assembly 283 that is similar in shape and function to the generator device of Figures 3 through 5. Fastening The air guide tubes 286, 287 are connected in the form of clips 284, 285 to the air guide tubes of the generator device 283. The airway tube assemblies 286, 287 include plugs 288, 289 that mate with corresponding sockets in the airway tubes of the generator device 283 (not shown). Port 290 is formed at the end of the airway tubes 286, 287 remote from the generator device 283. The port cooperates with apertures 292, 293 in an internal Phillips mask 281.

Please note that in an alternative embodiment, the mask may be made of materials other than silibon or rubber and may be a breathable filter material.

The inner layer mask 281 also includes an exhaust port 294, 295 that is configured to receive the exhaust valves 298, 299.

The outer cover 282 includes ports 296, 297 corresponding to the exhaust ports 294, 295 when the outer cover 282 is placed in position on the mask. Exhaust valves 298, 299 are mounted into ports 296, 297. They also assist in securing the outer cover 282 to the mask 281. In an alternate embodiment, components 298, 299 may not be exhaust valves, may only be plugs, sealing exhaust ports 294, 295.

The outer cover 282 also includes an elongated slot 300 in the outer cover that can be used for decorative purposes and that allows the air to escape when the mask 281 is made of a gas permeable material.

The inner layer mask 281 is shaped to cover the user's mouth and nasal passages. The air guiding tubes 286, 287 carry the filtered pressurized air to the mask (air guiding tube 286) and return from the mask (air guiding tube 287) to the generator device 283, where the exhaled air can be discharged via an exhaust filter. If the pressure within the mask increases, more of the exhaust air can be expelled via the exhaust valves 298, 299 and/or the mask material.

The cover 282 can help to enhance the aesthetics of the breathing apparatus. The cover may include a pattern, color, and the like for aesthetic purposes. A plurality of such covers can be prepared so that the user can replace them to change the aesthetics of the breathing apparatus 280. The cover can also provide protection for the user's face from environmental pollution. can. In particular, the cover can be very popular because it is common and important to protect the skin from UV radiation.

In the above embodiment, the inner layer mask covers the nose and the mouth. Various embodiments may cover only one of the nose or mouth. Additionally, a cover such as cover 282 can be used in conjunction with other embodiments of the mask device described herein. The shape of the outer cover can be varied to function in conjunction with each embodiment.

The generator device of the embodiments of the twenty-second to twenty-fourth embodiments is not limited to a neck assembly such as that shown in the drawings, but can be set by other types of generator devices placed anywhere in the body. .

25 and 26 illustrate an alternative embodiment of a connector structure 310 for connecting an airway of a generator device to an airway of a mask configuration, in accordance with any of the embodiments described herein. .

The connector arrangement 310 includes a male connector member 311 that is mounted to the mask configuration airway tube 312. The male member 311 has a pair of fingers 313, 314 that extend toward the generator device air duct 315 in use. The fingers 313, 314 are configured to be inserted into a corresponding female member 316 that is mounted to the generator device airway 315. The fingers 313, 314 include distally projecting front end heads 317, 318 that are configured to engage the elongated slots 319, 320 in the female member 316. The fingers 313, 314 are resilient so that they are tightly coupled to the female member slots 319, 320. The connector configuration can be released (unwound) by pressing the protruding portions of the front end portions 317, 318 in the elongated slots 319, 320 and pulling the male member 311 from the female member 315.

In the foregoing embodiments, there are some breathing apparatus including a generator device including a housing configured to be mounted to a neck of a user. The outer casing may include an air flow generator, a filter material, and Other components. In some environments, especially in hot environments, wearing such a neck device may cause discomfort. In one embodiment, a cooling device is provided to promote the comfort of such a neck mounting device. A thirty-sixth and thirty-seventh embodiment illustrate a cooling device embodiment.

The cooling device, generally designated by the reference numeral 350, includes a cooling insert 351. Cooling insert 351 includes a material that is configured to remain cool. The insert 351 is placed in the refrigerator for a period of time until it is sufficiently cooled. The cooling device 350 also includes a housing 352 configured to receive the cooling insert 351 within the housing 352 via the opening 353. a back cover (not shown) of the outer cover 352 has a one-dimensional nylon thorn fastener attachment configured to be coupled to a corresponding velcro nylon fastener pad on a neck device of a breathing apparatus consistent with an embodiment of the present invention. Please refer to the thirty-seventh figure.

In operation, the cooling device 350 keeps the user's neck cool and promotes comfort.

The breathing apparatus of an embodiment of the invention includes an elastomeric air tube for transporting filtered pressurized air to the mask and for delivering air from the mask (in certain embodiments). Because the airway is resilient (see Figures 3 and 5, for example, where the air duct is an elastic bellows), it is possible for them to kink and close during operation. In order to prevent this, the applicant of the present invention developed an insert, please refer to the thirty-sixth and thirty-seventh drawings. The plastic insert 360 includes a base 361 and a pair of fingers 362, 363 extending perpendicularly from the base. In operation, the base of the insert is positioned within an airway tube 370 to maintain the airway opening even if the knot is kinked. This is because the insert 360, by virtue of the fingers 362, 363, cannot be laid flat, maintaining the airway in an open condition.

Referring to Figures 27 and 28, an additional media adapter 500 is illustrated that is configured to be coupled to a generator device 501 for receiving additional filter elements, such as filter element 502. The generator device 501 can be used with a generator for use with other embodiments of the present invention The same or similar, such as the generator device 162 in the fifteenth to twenty-secondth drawings. It may contain the same components and be used in conjunction with the airway and mask configurations consistent with any of the above or any of the following embodiments.

In some cases, additional filtering may be required, which may require the addition of larger, bulkier filters to the unit. For example, gas filters may be required for extremely harsh environments where irritating or toxic gases may be present. The filter element 502 can comprise a suitable filter material and can be added to the generator device 501 by using a filter media adapter 500. The filter element is placed in the slot of the adapter 500 in the direction of arrow 503.

In addition to the filter material already installed in the generator device 501, an additional filter element 502 can be used, or instead.

The enhanced filter media function allows devices consistent with embodiments of the present invention to be used in extremely harsh environments, such as hazardous gas environments, even in military applications.

Figures 47 through 52 show a more detailed view of the generator device 501 with a slightly modified filter media adapter 500a and additional filter media elements 502a.

The forty-seventh and forty-eighth views show the generator device 501 configured for use with a standard filter material and showing how to replace the filter element.

The generator device 501 includes a housing 510 in which a generator assembly (filter media, impeller for power air, control electronics, and other components) is mounted. The housing is provided with a touch control screen 511 that includes a touch button 512 and a display 513 that allows the user to enter control parameters (eg, airflow and/or pressure control, temperature, etc.). Control screen 511 can perform any convenient assembly.

The access port 515 is mounted to the back of the housing 510 and can be opened (shown as open on the forty-eighth view) to allow access to the housing 510, and in particular to remove and replace the filter element 516. The filter cartridge 516 can comprise a plurality of series filter media, such as a HEPA filter media, particulate filter media, and any other filter media, as above Said. In the configuration as shown in the fifty-ninth embodiment, the filter element 516 includes a getter filter material 517 (which may comprise a plurality of series filter media, or may be a single type of filter media) and an exhalation filter material 518.

The surface area of the filter element 516 is similar at the outer side 516A and the inner side 516B, at least when the filter material area is presented at 516A and 516B. The filter inlet and outlet have similar or equal areas resulting in a more efficient use of the filter material.

The getter filter 517 is located at the inlet of the generator device 501 (operation is the same as that of the getter filter 185 shown in Figure 14A and described above). Exhalation filter material 518 is placed to receive the output airflow and to filter the exhaled air (identical to filter media 187 as shown in Figure 14A and described above). In an embodiment, the expiratory filter material 518 can also include a plurality of serial filter media.

Filter media 517 and 518 are mounted to liner 519, and filter cartridge 516 is configured to be placed in a receptacle 520 in the generator device housing 510. The access 515 can then be closed, as shown in the 47th.

In certain embodiments, the filter element 516 may not have an expiratory filter material 518. In certain embodiments, the airflow does not return to the generator device 501 (see below) after being exhaled, and may be exhaled via a valve elsewhere or via a venting block (eg, a filter material mask).

The access port 515 is hinged to the outer casing 510 via a hub 521. The hub 521 includes a pivot pin 522 that is mounted in a pair of cylindrical passages 523, 524 in the outer casing 510 and also extends through a cylindrical passage 525 at one end of the inlet and outlet 515. On the other side of the access opening 615, a release latch 526 from the hub 521 can be actuated to the released position (shown in Fig. 48) so that the access opening 515 can be opened. The peg 526 and the access opening 515 are shown in the forty-seventh view in the closed position.

The release pin 526 can be formed by a pair of lugs 528, 529 on the outer casing 510. The ball 517 slides, and the cylindrical holes 531, 532 of the lugs 528, 529 accommodate the plug 526. The access opening 515 has a lug 530 at its end corresponding to the position of the peg 526. When the access opening is closed, the cylindrical passage 531 is located between the lugs 529 and 528 and is configured to receive the peg 526 therein. The fastening port 515 is closed.

To retain the peg 526, the peg is secured to a spring 535 that is configured to move in parallel with the movement of the retaining peg 526 in the slot 536 of a housing 510. The spring 535 is bent at 538 to snap into the slot and when the tether is in the position shown in the forty-seventh figure, moves within the slot in a tight fit to keep the pin closed.

The access port 515 can be completely removed from the outer casing 510 to accommodate a filter media adapter (500 in the twenty-eighth figure and 500a in the forty-ninth and fifty-fifth views). The bolt 522 of the hub 521 is removed by unscrewing using an L-shaped Allen key (not shown). On the other side of the access opening 515, the locking bolt 526 is open so that the access opening can be completely removed.

Referring to the forty-ninth and fiftyth illustrations, the filter media adapter 500a is shown secured to the generator device housing 510. The filter adapter 500a includes a frame 520a having a side edge 521a defining a front opening 522a that is configured for use in the opening 520 of the generator device housing 510, and a configuration to receive the additional filter element 502a rear opening 523a .

The filter media adapter 500a expands the size of the generator device so that it can accommodate a large additional filter element such as 502a. The additional filter element can be in communication with the opening 520 on the generator device housing 510, and thus with the air tubes 181, 182 (Fig. 14A).

The filter media adapter 500a of the forty-ninth and fiftyth views is secured to the generator device 501 via a hub 521 and a locking bolt arrangement 526. The additional adapter 500a includes a receiving element 530a configured to receive the locking bolt 526, and a hinge arrangement 523a configured to receive the pivot pin 522. filter The material adapter 500a also includes a snap lock arrangement including a spring lock 551 at the bottom of the outer casing 520a and a hinged spring lock 550 at the top of the outer casing 520a.

The filter element 502a includes a housing 555a that houses a filter material 556a. The filter housing 555a is provided with protrusions 580 at the top and bottom of the outer casing 555a (the bottom protrusions are not visible in the figure, but are identical to the top protrusions). These projections are mounted into slots 557 located at the top 551 and bottom 550 spring locks of the filter adapter 500a as shown in FIG. The top spring lock 551 is hinged to the filter adapter housing 528 by a hinge 558, which is not hinged.

In operation, the filter element 502a is pressed into the opening 523a until the bottom protrusion 556a fits into the slot 557 of the bottom spring lock 550. The top spring lock 551 is hinged to open and then closed about the hub, such that the slot 557 receives the top projection 556a, as shown in the forty-ninth figure, to secure the additional filter element 502a to the generator device 501. A gasket 560 is disposed within the filter media adapter 500a to seal the filter media adapter to the additional filter element 502a. Alternatively, the gasket is disposed in the filter housing 555a.

The filter element 502a includes a strong filter material, such as a gas filter. It can include any other type of filter media.

The filter element 502a can include a getter filter and an exhalation filter such that the exhaled air can also be filtered (see Figure 4).

In another embodiment, the expiratory airway passage 182 can be sealed and the exhaled air can be exhaled from the side of the mask or via a separate exhalation valve (eg, a valve located on the front of the mask or elsewhere). In this embodiment, 502a may be only a getter filter.

The fifty-first diagram shows a perspective view of a mask configuration consistent with an embodiment of the present invention with an additional filter adapter 500a mounted. The display spring lock arm 590 is mounted by a hub 591 To the configuration. The spring lock arm functions during operation (as shown in Figure 51) to secure the top spring lock 551 in place.

Figure 52 shows a bottom view of the device of the fifty-first figure. A charging location 595 is configured to receive a plug of the charger 596 to charge the configuration battery.

Referring to the fifty-sixth and fifty-seventh embodiments, a flow tube arrangement that can be used in embodiments of the present invention is illustrated, generally indicated by the symbol 800.

In some cases, the airflow generator may not be usable. This may be because it is defective, or the user chooses to operate the breathing apparatus in an unpowered mode, or for any other reason.

When the airflow generator is inoperative, the air passage through the air generator may create resistance to airflow that may make it difficult for the user to breathe.

The flow tube arrangement provides a bypass tube passage through which air can flow when the air flow generator is not operating, which prevents air from flowing through the air flow generator.

The bypass tube arrangement includes a manifold 801 having a first passage 802 that allows airflow through the airflow generator. It also has a second passage 803 that includes a bypass valve 804. Valve 804 is closed when the airflow generator is operating.

When the airflow generator is not operating, the pressure difference is such that the user can breathe via the valve 804 and the bypass tube passage 803.

In all of the above embodiments including a circular airway tube (e.g., in the third to fifth embodiments), the expiratory path may be sealed and air may exit the device via an additional exhalation valve.

The ability to add an additional filter material (in addition to or in lieu of the filter material already included in the generator device 501) provides further functionality to devices consistent with embodiments of the present invention.

The twenty-seventh and twenty-eighthth drawings show an alternative embodiment of a filter media adapter 500. This embodiment may be integral with the housing 510 of the generator device 510, or may simply be placed in a receiving opening slot located within the housing 501 without the need for a plug and hub arrangement.

An additional filter element 502 is configured to fit into the slot 523 slot in the rear of the filter adapter 500. The filter element housing 555 is slightly different in construction than the filter element housing 555a of the forty-ninth and fiftyth embodiments. The outer casing 555 includes a pair of lugs 560 and 561 that are configured to be mounted to corresponding receiving slots 562 and 563 within the filter media adapter 500, as shown in FIG.

A further embodiment will now be described with reference to the thirty-eighth to fourty-sixth drawings. This embodiment is a modification of the embodiment in the third to fifth figures. In contrast to the embodiments of Figures 3 through 5, the modification includes the addition of a head support device 630, a modified exhalation valve 601, and a modified airflow passage. The air flow passage is not circulated through the inhalation protruding portion 160 and the expiratory protruding portion 161. Rather, the expiratory passage 161a is closed and air exhaust occurs via the exhalation valve 601. A further modification includes a supplemental power supply that is installed by supplementing the power supply set 600.

Referring to the thirty-eighth to forty-sixth drawings, the same component symbols have been used on the same components as those already described in the third to fifth figures, and the components will not be further described.

Referring to the fortieth diagram, in the present embodiment, the air flow passages are generally indicated by arrows A, B, C, and D. The airflow is "in" through the generator device 162 (with the impeller and the filter material), is passed to the mask via the protruding portion 160 (arrows B and C), and is "out" via the exhalation valve 601 (arrow D). . The protruding portion 161a is blocked by a partition (not shown) installed in the air guiding tube 161a.

The forty-seventh and forty-eighth drawings show in detail the general arrangement of the mask 150a. Exhalation filter 601. The exhalation valve 601 includes a valve base 620 that is provided with a valve seat 640. A valve actuator 621 includes a disc 641 and a protruding rod 651. The protruding rod 651 is located within the sleeve 652 in the valve base 620 and is retained by a spring 653 such that the disc 641 is biased against the valve seat 640 and closes the valve that communicates with the breathing chamber within the mask 150a. Channel 653.

A filter media base 622 includes annular disks 655, 656 that enclose a perforated surface 657 to form an annular slot 658 for receiving filter media 623. The disk 656 has an opening 659 that faces the air passage 653 and houses the valve actuator 621 and the disk 641.

Filter media 623 can be a HEPA filter or any other type of filter material configured to prevent particulates from being exhaled into the atmosphere (eg, viral particles attached to droplets, bacteria, etc.).

A filter housing 624 having a perforated outer edge 660 to allow air to escape covers the valve arrangement.

In operation, when a user exhales in the mask, the air pressure is sufficiently increased to push the valve disc 621 to inhibit the force of the spring 653, thereby opening the flow between the air passages 653, so that the air passes through the filter medium 623 in the outer cover. The perforations 660 are exhaled. When the pressure drops, the spring 653 closes the valve.

This type of valve can be used in any of the embodiments described herein. If the exhaled air is allowed to be filtered, the contaminants will not be exhaled.

Referring to the thirty-eighth figure, in order to be able to use the PAPR for a longer period of time, a supplemental power supply is provided. A supplemental power supply configuration 600 includes a pouch 670 (fortyth, fourth, and forty-second) having an opening 671 and a pocket wall 672 forming a pouch configuration to accommodate a power box assembly 672. The power box assembly includes (38th) a rechargeable battery pack 673, a battery charger 674, a control battery charging microcontroller (MCU) 675, and a user interface. 676. Connector 677 is configured to connect power box assembly 672 to generator device 162.

A material flap 678 extends from the pouch 670 and is configured to be mounted between the neck liner 164 and the generator device 162 to retain the pouch 670 in place. The flap 678 can include a fastening device such as a Velcro fastener, and the supplemental fastening device can be disposed on the surface of the neck pad 164 or the generator device 162. An alternative connection to the Velcro nylon buckle can be a button, buckle or any other attachment means. The pocket fabric can be made of any elastic material such as Neoprene (synthetic rubber) or leather. The pocket may have an opening or may be transparent to allow visibility of a battery indicator. An alternative to providing a battery bag opening at the top can be provided with an opening on the side so that the battery can be quickly placed.

The embodiments of Figures 38 through 46 also include a support in the form of a headband 630 that is used to provide further device support.

The headband strap 630 is presented in the form of a fabric mesh strap having a mesh portion 680 that is configured to be used on top of the user's head. A pair of straps 681, 682 extend from the mesh portion 680 and support the connectors 631, 632. The connectors 631, 632 are configured to receive the lugs 684 disposed on the side of the connector arrangement 165 such that the head support 630 is in use to support the device (see FIG. 40).

A forty-third figure is an exploded view of the generator device 162 of one embodiment, showing components that are slightly more detailed than the third to fifth figures. The generator device housing includes a base portion 611 and a top portion 613 that are closed at the base and top. They also include a housing 610 that is mounted to the filter element 185 and has perforations 700 to allow air to enter. Portion 187a of filter element 185 does not have any exhalation filter because in this embodiment, the exhalation is via exhalation valve 601. In another embodiment, an expiratory filter may be provided and the airway 161 is open.

An in-board power supply 189, a controller 188, and an impeller member 186 are mounted in the housings 611, 613.

Controller 188 includes a printed circuit board 690 that houses components. A housing 616 provides heat dissipation to the printed circuit board. The outer cover 616 can also include a humidifier configuration as described in the applicant's earlier application.

The impeller 186 is mounted on the base 165, and air is drawn into the air duct 160 via the impeller base 615 and the passage 691.

The top 612 of the generator device housing includes a control panel 613 and a control panel cover 614.

The neck pad 164a is modified from the third to fifth figures and may include a cooling device as described in the thirty-fourth and thirty-fifth views.

In order to maintain the airway 160 open, a plastic insert 360 is provided (as described in Figures 36 and 37).

The outer cover 700 is removable during operation and may utilize additional filter media adapters as described in Figures 27, 28, and 47 to 52.

Further embodiments of a breathing apparatus consistent with the present invention will now be described with reference to the twenty-ninth through thirty-third figures.

With the "neck mounting" generator device embodiment, as described in the second to fifth and the fortieth to forty-eighth, for example, the generator device 162 is mounted against the neck back. In some cases, this may make it difficult for the user to move his or her head freely, and may cause some discomfort if worn for a long time.

The embodiment shown in the twenty-ninth figure has a third to fifth figure or The same components of the embodiment in the thirty-ninth to fourty-sixth embodiments, and therefore will not be further described. However, in comparison with the other embodiments, the breathing apparatus 900 of the twenty-ninth embodiment is elongated, such that the generator device 162a is spaced from the back of the neck. Referring in particular to the thirty-first figure, a neck pad 901 is disposed on the back of the neck for use, and an adjustment bracket is mounted on the air guiding tubes 902 and 903 (the symbol of the adjusting bracket is 905) . The adjustment bracket 905 supports the neck pad 901 using a button 906 that fits into a hole 907 in the adjustment bracket 905. Please note that there are adjustment brackets 905 on both air ducts 902 and 903. This means that the fixation of the neck pad 901 is illustrated in the thirty-second diagram.

An alternative to the fixed user is an integral air clip 910 that is secured to the airways 902, 903, and the neck pad 901 has a strap 911 that is mounted through a buckle 912 on an air clip.

In this embodiment, the generator device 162a is spaced from the back of the neck. A pivot point 915 is created that allows the user to tilt the head. The generator device 162a is free to move without interfering with neck activity.

A fifty-third to fifty-fifth diagram is a further embodiment of an adjustment position generator device. The generator device shown is designated by the symbol 162b and is configured to be supported by the user's shoulder in use (see Figures 55A and 55B). The generator device 162b can support a gas filter cartridge 920.

The central portion of the generator device 162b conforms to a contour of the body (921) to conform to the contours of the neck and shoulders. The larger weight is more comfortable to support by the shoulder than by the neck, so that the long-term wearing the breathing apparatus can also feel comfortable and can tilt the head comfortably.

As described above, the respiratory device embodiment of the present invention can implement a respiratory response control In this way, the air pressure may vary with the breathing rate. Motor power (fan motor) may also change during the breathing cycle. There is an inspiratory interval during any breathing cycle, an interruption when not breathing, and an expiratory interval.

Embodiments of the respiratory response of the present invention may take into account respiratory rate and vary motor control during a breathing cycle.

Referring to Figures 58 to 61, an embodiment of the present invention implements a reaction flow control rule system consisting of an exhalation positive pressure (EPAP) and an inspiratory positive pressure (IPAP) control function. Implement a breathing response program in the EPAP control function (see Figure 59) to detect the inspiratory time at the EPAP status end and calculate the increased pressure based on the respiratory effort result and the user gain setting. Used in the IPAP state after being connected to the EPAP state. The cycle of EPAP and IPAP repeats breathing and breathing.

The fifty-eighth and fifty-ninth diagrams are flow charts showing the control rule system. The sixtieth graph shows a graph of the mass pressure and the motor power. The sixty-first A and sixty-first B diagrams show the mask pressure waveform during the breathing cycle.

The respiratory response control program is based on the breathing force and user gain settings (users can manually set the desired air pressure). The higher the product value, the higher the response. Respiratory force is calculated by measuring the difference in pressure over a specified period of time after the mask pressure drops below the EPAP set pressure point. The gain setting is user selectable, and the higher the setting, the higher the sensitivity of the bellows output to breathing force. The fifty-eighth and fifty-ninth figures illustrate the steps of respiratory response control.

For a particular gain setting, the higher the pressure drop at the beginning of inspiration, the higher the breathing force.

For a specific gain setting, if the breathing needs to be large enough, the bellows is easy to reach To its maximum capacity. To save on breathing effort, the higher the gain setting, the same breathing effort can result in a higher flow response.

The higher the gain setting, the less the pressure drop at the beginning of inhalation, so the minimum mass pressure is higher, and it is more suitable for people with higher labor or larger lung capacity, but smaller lung capacity may feel uncomfortable.

The higher the gain setting, the higher the average IPAP pressure and the higher the battery cost. For people with low labor or small lung capacity, the lower gain setting may be more comfortable, while the bellows may be quieter and the battery will last longer.

For the embodiments of the invention, the mass pressure ranges from 0.1 cm water depth to 3.5 cm water depth. The target EPAP pressure can begin at a depth of 0.5 cm. The target inspiratory pressure is variable, depending on the breathing force and user comfort settings, and is above 1 cm water depth and up to 3.5 cm water depth.

As mentioned above, the control of the breathing apparatus can include software control. Software control can include predicting software and predicting when the filter is clogged. As the filter material resistance becomes higher, the bellows may have to work harder.

Windbox flow capacity check. A built-in flow meter provides a means for the user to check the flow capacity of the breathing apparatus before each use.

The height of the filter plugging detection can be increased or decreased by 3000 meters.

Automatic pressure sensor zero offset calibration.

Manual pressure sensor zero offset calibration.

Low battery alarm sound.

Respiratory response settings.

Built-in battery charger and instructions.

Filter blockage detection during breathing and mask closure.

Air temperature control (heating and cooling).

Air humidity control.

User access to information such as usage time, breathing rate, filter usage, ownership, etc. via Bluetooth.

It will be appreciated that many modifications may be made without departing from the spirit and scope of the inventions.

1‧‧‧PAPR system

2‧‧‧ masks

3‧‧‧Generator device

4‧‧‧ Impeller

5‧‧‧ Filter media

6‧‧‧ Controller

7‧‧‧Sensor

8‧‧‧ Airway tube

Claims (46)

A breathing apparatus includes a gas flow generator, a filter material, and an air guide tube. The airflow generator is configured to generate a positive pressure airflow, the filter material is configured to filter air entering the breathing apparatus, and the airway conduit is configured to deliver positive pressurized air and coupled to the mask to provide pressurized filtered air to the user Respiratory tract. Wherein, the generator device includes a filter housing configured to mount one or more filter media, wherein the device further includes an additional filter media adapter configured to be mounted to the generator device, the additional filter media adapter configured to receive An additional filter element. A breathing apparatus as claimed in claim 1 wherein the generator means comprises a removable filter cover configured to be removed and replaced with an additional filter adapter. The breathing apparatus of claim 3, the airflow generator and the filter material are mounted in a generator device configured to be placed in position away from the mask. The breathing apparatus of claim 4, wherein the generator device is configured to be mounted around the user's body as follows: the user's shoulder; the user's neck behind; the user's head; the user's waist On the belt around; under the user's arm. A breathing apparatus according to any one of claims 3 to 5, comprising an exhalation valve installed in the mask to allow air to be exhaled. The breathing apparatus of claim 6, wherein the exhalation valve comprises a filter material configured to filter air leaving the environment. The device of any one of claims 3 to 7, further comprising an independent air duct for venting, configured to be coupled to the mask to carry the venting strip away from the mask. An apparatus as described in claim 8 is provided with an additional filter material for filtering prior to exiting the exhaust from the individual air ducts to the environment. The device of any one of claims 3 to 14, wherein the mask is made of an elastic material to conform to the contour of the user's face. The breathing apparatus of claim 10, wherein the mask has a top portion disposed adjacent to the user's nose and includes a resilient structural feature that allows the top to be bent to conform to the user's nose. The device of claim 11 wherein the resilient structural feature comprises a bellows configuration configured to compress and expand. The device of any one of claims 10 to 17, wherein the mask comprises a face contact edge of a thinner wall region to promote facial comfort. The device of any one of claims 3 to 10, wherein the mask is configured to surround the mouth of the user. The device of claim 14, wherein the mask comprises a nasal plug configured to be inserted into a nostril of the user. The device of claim 15 wherein the nasal plug includes a passageway that allows air to circulate between the interior of the mask and the user's nostrils. The device of any one of claims 3 to 10, wherein the mask is configured to surround the user's nostrils and expose the mouth. A breathing apparatus according to any one of claims 3 to 10, wherein the mask comprises a relatively rigid portion configured to enable sound transmission. The device of any one of claims 3 to 19, wherein the mask is attached to the user's eyeglasses. The device of any one of claims 3 to 20, further comprising a mask Decorated with a cover. The device of any one of claims 3 to 21, further comprising a mask holder configured to support the outer cover, thereby forming a mask, the outer cover being relatively soft and elastic, configured to A volume for containing filtered air is provided. The device of any one of claims 3 to 22, wherein the airway tube includes an air duct chassis configured to extend to the mask to provide filtered air into the mask, the air duct chassis extending throughout On the front of the mask, the chassis is provided with an opening that conforms to the opening in the mask to carry air into the mask. A device according to any of the preceding claims, wherein the generator device comprises a filter housing configured to mount one or more filter media. The apparatus of claim 23, comprising an additional filter adapter configured to be mounted to the generator device, the filter media adapter configured to receive an additional filter element. The device of claim 24, wherein the generator device comprises a removable filter housing configured to be removed and replaced with an additional filter adapter. The device of any one of claims 3 to 25, comprising an arm extending from the side of the mask along the sides of the user's head in use. The device of claim 26, wherein a separate neck support is provided extending between the arms at the neck of the user. The device of claim 26, wherein the arm is coupled to a generator device that is configured to be mounted behind the user's head via the arm, the generator device Install the airflow generator and filter media. The device of claim 28, wherein the generator device is spaced apart from the back of the user's head in use to allow the user to tilt the head without being obstructed by the generator device. The device of claim 29, further comprising a separate neck support configured to abut the neck of the user during use. The apparatus of any one of claims 3 to 30, further comprising a power supply configured to supply power to the breathing apparatus. The device of claim 31, including a supplemental power supply, can be attached to the breathing apparatus when in use. The device of any one of claims 3 to 30, wherein the airflow generator is configured to generate a pressure in the mask of from 0.01 cm to 4 cm. The device of claim 33, wherein the airflow generator is configured to generate a pressure in the mask from a water depth of from 0.1 cm to a depth of 3.5 cm. The device of claim 34, wherein the airflow generator is configured to generate a pressure in the mask from a water depth of from 0.1 cm to a depth of 2.5 cm. The apparatus of any one of claims 3 to 35, further comprising a controller to control the airflow generator to change the output according to the user's breathing. The device of claim 36 is configured to vary the flow of air during a breathing cycle. A mask for a breathing apparatus configured to surround at least a user's nostril, the mask having a top disposed adjacent to the nose of the user, the top including an elastic structural feature that allows the top to be bent to conform to the user's nose . A mask for a breathing apparatus configured to surround a user's mouth and/or nostrils, the mask having an area configured to contact a person's face, including a relatively thinner wall portion than the remainder of the mask. A mask for a breathing apparatus configured to surround the mouth of the user without surrounding the nostrils. a mask for a breathing apparatus that is configured to surround the user's nostrils and allow mouth violence Exposed. A mask configuration for a breathing apparatus includes a mask holder configured to support a resilient outer cover configured to surround a user's mouth and/or nostrils. A mask for a breathing apparatus configured to cover a user's mouth and/or nostrils, including a relatively rigid portion of the mask to enable sound to be transmitted. A cooling device configured to be used with a powered air respirator having a housing disposed between the neck mounting housing and the user's neck. a breathing apparatus comprising a gas flow generator configured to generate a positive pressure gas stream, and an air conduit configured to deliver positive pressurized air to the mask for providing pressurized air to the user's respiratory tract, and A controller for controlling the airflow generator to react to the user's breathing. The device of claim 45, wherein the controller is configured to vary the airflow generator output during a breathing cycle of the user. The device of claim 45, wherein the controller is configured to vary the airflow generator output in response to a user breathing rate.